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International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
1
UKM-UCA
INTERNATIONALJOINT CONFERENCE
ONSCIENCE ANDTECHNOLOGY
2016
« EmpoweringScience and Technology »
9-11 February 2016
Cadi Ayyad Universityof Marrakech (UCA), Morocco
BOOK OF ABSTRACTS
Organized by :
Faculty of Science & Technology (FST)
Solar Energy Research Institute (SERI)
Faculty of Science and Technic, Cadi Ayyad University of
Marrakech
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Table of contents
Welcoming word by the organizing committee ____________________________ 5
Organizing Committee ________________________________________________ 6
Technical Program ____________________________________________________ 7
Abstracts of Plenary and invited Lectures __________________________________ 13
Symposium 1: Green Technology & Catalysis _____________________________ 17
Symposium 2: Materials & Energy ______________________________________ 25
Symposium 3: Water, Geology & Environnement _________________________ 30
Symposium 4: Biology and Biotechnology _______________________________ 38
Symposium 5: Physics ________________________________________________ 48
Symposium 6: Mathematics ___________________________________________ 59
Symposium 7: Polymers and polymers based composites ___________________ 66
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Welcoming word by the organizing committee
We are delighted to welcome you to the first International Joint Seminar on Science and
Technology 2016 which will take place in Marrakesh from 9 to 11 February 2016. This
seminary is jointly organized by CadiAyyad University (UCA) of Marrakech-Morocco
and The National University of Malaysia (UKM).
The IJSST 2016 is a proposed to provide a platform for researcher and academician to
share information and idea and to report any latest finding in science and technology. We
hope that this conference will help to strengthen the collaborative network in research
between UKM and UCA and will be the opportunity to identify the future directions of
R&D activities to Science and Technology that benefit locally and internationally.
On the behalf of the organizing committee, we would like to extend my sincere thanks to
the IJSST 2016 attendees from Malaysia and Morocco. We hope you will find the
conference informative and stimulating and you will enjoy the scientific program and the
charms of Marrakech city.
Our warm thanks to the Prof Abdellatif MIRAOUI, president of Cadi Ayyad University,
to the vice-President Professor Hamid AJANA and to the Prof. Moha TOURIRTE, dean
of Faculty of Sciences and Technology for their sustained help.
We wish you a memorable stay in Marrakech and in Morocco.
For the organizers
Prof. Hamid KADDAMI
& Prof. Ahmad AZIZAN
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Organizing Committee
UKM Committee UCAM Committee
Patron:
Prof. Datuk Dr. Noor Azlan Ghazali Prof. Abdelltif Miraoui
Advisors:
Prof. Dr. Sahrim Ahmad Prof. Hamid Ajana
Prof. Dato‘ Dr. Kamaruzzaman Sopian Prof. Moha Taourirte
Prof. Cherkaoui Modaffar
Chairperson:
Assoc. Prof. Dr. Wan Aida Wan Mustapha Prof. Hamid Kaddami
Secretary:
Dr. Mohd Sukor Su‘ait Dr Karima Benhamou
Mrs Hind Sodki
Treasurer:
Dr. Rizafizah Othaman Mr Ihsane Moaouia
Scientific, Program and Publication:
Assoc. Prof. Dr. Azizan Ahmad Prof. Mustapha Raihane
Assoc. Prof. Dr. Sahilah Abd.Mutalib Prof. Ismail Saadoune
Dr. Nur Hasyareeda Hasan Prof. Lhoucine Hanich
Dr. Norasikin Ahmad Ludin Prof. M‘hamedEddahbi
Dr. Suhaila Sepeai Prof. Hassan Ayyad
Prof. Dr. Muhammad Mukram M. Mackeen Prof. Abdellatif Boussaid
Prof. Hamid Kaddami
Publicity and Logisticand Technical:
Dr. Muhammad RahimiYusop Dr Mohamed Abdouni
Dr. Farah Hannan Anuar Mrs Fatiha Chaybe
Assoc. Prof. Dr. Mohamad Yusof Maskat Mr Mahrou Khalid
Dr. Nurul Izzaty Hassan
Dr. Mohd Adib Ibrahim
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Technical Program
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Tuesday, February 9, 2016
Registration from 8:30 to 9:00
Opening and Signature of MOU from 9:00 to 9:30
Word of UCA President
Word of UKM Chancellor
Word of Organizing committee
9 :30-10 :00 Coffee Break (20 min) Coffee Break (20 min)
Conferences of Deans
Plenary Lecture 1: Prof. Tourirt Moha (Dean of FST-Marrakesh)
Education and research at FST and UCA: Strategy and development
10:00 – 10:25 (25 min)
Plenary Lecture 2: Prof. Sahrim Ahmed (Dean of FST - Universiti Kebangsaan Malaysia)
Current Status of Research at Faculty Science and Technology (FST) , National University of Malaysia
10:25 – 10:50 (25 min)
Invited Talk:Malysia’s Global Reach : Knowledge and Skills Hub Creation Through Internationalisation
Yang Farina*& Nur Amalina Rashid
10:50 – 11:10
Symposia Symposium 1: Green Technology and catalysis
Chair Prof. M. Lahcini &Prof. Azizan Ahmad
11:10-11:30 OP-1-1- Benaissa Rhouta: Natural clays as starting materials for the development of innovative advanced multifunctional eco-friendly materials
11:30-11:50 OP-1-2- Shahidan Radiman, Lamya M. Al-Qirby, Chiu Wee Siong, Ameen M. Ali
Green synthesis of CO3O4 nanocrystals via a new ultrasonic ionic liquid- assisted
11:50-12:10 OP-1-3- Asma Kaoukabi, Larbi Belachemi, Mohamed Lahcini, M-C. Viaud-Massuard, C. Das. Bhaskar (oral)
Design and synthesis of new hybrid arotinoids containing chromene with potential anti-cancer activity.
12 :10-14 :00 BREAK FOR LUNCH TIME
Tuesday, February 9, 2016, Afternoon
Symposia Symposium 2: Materials and Energy
Chair Prof. Hassan Chehouani & Prof Mohd Salmi Bin Md Noorani
14:00-14:20 OP-2-1. Ismail Saadoune: Electrochemical Energy Storage Materials
14:20-14:40 OP-2-2- M. Faizzi, N.A. Ludin, N.M. Mohamed, K.H. Badri, A. Ahmad M.S. Su‘ait : Effects of iodid/teriiodiode(I¯/I3¯) ratios on palm based polyurethane
polymers electrolyte for solid-state dye-sensitized solar cell
14:40-15:00 OP-2-3 Mohammed Oouikhalfan, Hassan Benhamed, Hassan Chehouani, Hamid Kaddami, B. Benhamou : Preparation and characterization of thermal and
rheological behavior of TiO2/Fatty acid nanofluid as Phase Change Material (PCM)
15:00-15:20 OP-2- 4- A Ahmad: Biopolymer electrolyte for electrochemical energy storage device: UKM experiences
15 :20 –15 :40 OP-2-5- Mira Syahirah, Lee Veng Chuan, Ahmad Mahir Razali* &Nurulkamal Masseran: Solar irradiance forecasting using expontial smoothing technique
15 :40-16 :00 Coffee Break (20 min) / Poster Session
LABORATORY AND CENTERS TOURS
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Wednesday, February 10, 2016 , Morning
Symposia Symposium 3: Water, Geology and Environnement
Chair Prof. Lahoucine Hanich& Prof. Yang Farina Binti Abdul Aziz
8:30-8:50 OP-3-1- Rachid Hakkou: Environmental Challenges Facing Mining Wastes Management in Morocco
8:50-9:10 OP-3-2- Ismail Aouiche, Lahcen Daoudi: The impact of engineering structures on shoreface and shoreline changes in the Atlantic coast of Morocco: Multi-
method analysis -Case of Agadir Bay Morocco
9:10-9:30 OP-3- 3- Benkaddour A. , Rhoujjati A. , Nourelbait M., Vidal L., Idabdellah H., Adallal R. , and Cheddadi R.: Moroccan Lacustrine sediments as a valuable
paleo-environmental archives
9:30-9:50 OP-3-4- Er-Raki, S., Simonneaux, V. et al : An example of the Joint International Laboratory: Remote sensing of water resources in semi-arid
Mediterranean basins: LMI-TREMA
9:50 – 10:10 OP-3-5- A.Marchane & L. Hanich: Snow cover dynamics of the Moroccan Atlas mountains
10 :10-10 :30 Coffee Break (20 min)/ Poster Session
Symposia Symposium 4 : Biology and Biotechnology
Chair Prof. Ahmed Qaddoury & Prof. Wan Juliana Binti Wan Ahmad
10:30-10:50 OP-4-1. Ahansal Lahcen; Hammoumi Aayah, Clarisse Iradukunda; Boussaid Abdellatif : Moroccan strains of yeast and algae to produce bioenergy
10:50–11:10 OP-4-2- Pei-Ling Tang, Osman Hassan,MohamadYusofMaskat, KhairiahBadri: Biotransformation of black liquor of oil palm empty fruit bunch fiber
(OPEFBF) into vanillin Pycnoporuscinnabarinus MUCL 39533.
11:10-11:30 OP-4-3- Sharifah Habibah Syed Khalafu, Wan Aida Wan Mustapha, Lim Seng Joe, Mohamad Yusof Maskat and Sahilah Abd Mutalib : Effect of
deodoization process on the fishy aroma, antioxidant activity and fucose content of fucoidan
11:30-11:50 OP-4-4- Clarisse Iradukunda, Yassir Barcouch , Ahmed Tadlaoui Ouafi & Abdellatif Boussaid : Yeasts in Smen, a Fermented Farm Butter
11:50-12:10 OP-4-5- Aminah Abdullah and Khalid Hamid Musa: Oxicountkit: a quick method to determine antioxidant activity in plant materials.
12 :10 - 14:00 BREAK FOR LUNCH TIME
Wednesday, February 10, 2016 , Afternoon
Symposia Symposium 4 : Biology and Biotechnology (continue)
Chair Prof. Abdellatif Boussaid & Prof. Wan Aida Binti Wan Mustapha
14 :00 – 14 :20 OP-4-6- Rozida Khalid: Manipulation of microbial gene expression for production of new secondary metabolites
14 :20 – 14 :40 OP-4-7- Makoudi B., Bargaz A., Farissi M., Mouradi M., Kabbaj A., Bouizgaren A. ,Drevon JJ. , And Ghoulam C.
Legume-rhizobia symbiosis could be an efficient biological tool for sustainable soil and crops fertilization
14 :40-15 :00 OP-4-8- Baseem M. Tamimi, Wan Juliana Wan Ahmad*, Mohd. Nizam Mohd. Said & Che Radziah Che Mohd. Zain
Growth Responses of Mangrove Plants to Elevated Atmospheric Carbon Dioxide at Open Roof Green-House
15 :00-15 :20 OP-4--9 Norela Sulaiman Shahara Ayub: Asseessment of firefly abundance at new ecotourism site of bernam river, selangor
15 :20-15 :40 OP-4-10- Ahmed Qaddoury : Use of the arbuscularmycorrhizal symbiosis as biological tools to improve plant growth and tolerance to drought and poor
soils: date palm as a model
15 :40-16 :00 OP-4-11- Nurul Hidayah, A.S. Nurul Wahida, O. & Norefrina Shafinaz, M.N. : The optimization and efficient isolation of high quality RNA extraction
from salivary gland of Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae)..
LABORATORY AND CENTERS TOURS
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Thursday, February 11, 2016, Morning
Symposia Symposium 5: Physics
Chair Prof.Hassn Ayyad & Prof. Shahidan Bin Radiman
8:30-8:50 OP-5-1-Zaifol Samsu, Norinsan Kamil Othman, Abd Razak Daud, Muhamad Izhar Sahri1 and Muhammad Daud: High temperature corrosion of hot
dipped aluminizing on carbon steel in dry and wet environments
8:50-9:10 OP-5-2-Benhida, F. Sefyani,T. de France, Z. Benkhaldoun, D. Gillet, P. Mathias, A. Daassou, M. Lazrek : Spectrophotometry of pulsating stars at
Oukaimeden Observatory in Morocco
9:10-9:30 OP-5-3- O.boualy, H.Mharzi, A.Coujou, Y.LeBouar, M.Benyoucef: Phase-field Modeling OF Microstructural evolution In Ni-base superalloys at high-
temperature
9:30-9:50 OP-5-4- Raefat Jalila El Bakouchi, Ahmed Zakaria Manouare and Abdelilah Ghammaz: A Multi-Band PIFA Antenna for GPS L1/
GSM1800/GSM1900/UMTS/LTE2300/ Wi-Fi Applications for Mobile Phone
9 :50-10 :10 OP-5-5- L. Essaleh, M. Belaqziz , S. Lahlali , A. Bourial, A. Alimoussa , Z. Abkhar, K. Djessas and H. Chehouani : Dynamic electrical conductivity on
the bulk photoabsorber semiconductor Cu2SnS3
10:10-10:30 Coffee Break & Poster session (20min) / Poster Session
Chair Prof. Alaa Noureddine &Prof Ahmad Mahir Bin Razali
Symposia Symposium 6: Mathematics
10:30-10:50 OP-6-1- Mohamed Boucetta: Presentation Equip Geometry, Topology and Applications
10:50-11:10 OP-6-2- Mohd Salmi Md Noorani and Fahad Alsharari : Sharp estimates for closed orbit of motzkin shifts
11:10-11:30 OP-6-3- Nasharuddin Zainal, Edgar Scavino and Eng Sheh Ling: Tennis court mapping and trajectory optimation for robotic object retrieval
11:30-11:50 OP-6-4- M. Kzaz: Asymptotic Expansion For Numerical methods
11 :50-12 :10 OP-6-5- M'hamed Eddahbi: From actuarial sciences to mathematical finance: an example
12:10-14:00 BREAK FOR LUNCH TIME
Symposia Symposium 7: Polymers and polymers based composites
Chair Prof. Hamid Kaddami &Prof. Sahrim Ahmad
14 :00 – 14 :20 OP-7-1- Mohammed Lahcini : Biodegradable Polymers by mean of metal complexes as Initiators
14 :20 – 14 :40 OP-7-2- Farah Hannan Anuar, Tan Ching Haw, Siti Munirah Manap, Ain Athirah Zainuddin, Azizan Ahmad: Polyurethanes containing poly(ethylene
glycol), poly(propylene glycol), polylactide and polydimethylsiloxane segments
14 :40-15 :00 OP-7-3- Hind El Omari, Ahmed Belafkira, François Brouillette, Gilbert Lebrun: Lignocellulosics materials from perennial plants and commercial fibers.
15 :00-15 :20 OP-7-4- Rizafizah Othaman, Nurul Hanisah Mohd, Azwan Mat Lazim, Ishak Ahmad, Mohd. Ambar Yarmo: Effect of modification on nanocellulose
aerogel for CO2 adsorption
15 :20-15 :40 OP-7-5- Amal Kadimi, Hamid Kaddami, Mustapha Raihane, Zoubida Ouanaies : Elaboration and characterization of New Nanocomposites Based on
Cellulose Nanofibers and Copolymers Containing Fluorinated and Nitrile Derivatives
15 :40-16 :00 OP-7-6-M. Raihane, M. Karamane, Y. Yagçi, M. Lahcini, M. Ilsouk , A. Hult : Fluorinated methacrylate / clay nanocomposites caoting prepared by in situ
radical polymerization: Structure and characterization
LABORATORY AND CENTERS TOURS
END OF THE CONFERENCE
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Abstracts of Plenary and invited Lectures
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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PL-1 Tuesday, February 9, 2016, Morning from 10h00 to 10:25
EDUCATION AND RESEARCH AT FST AND UCA: STRATEGY AND
DEVELOPMENT
Moha Taourirte*
*Corresponding author:m.taourirte@uca.ma
Faculty of Sciences and Techniques, Avenue Abdelkrim Elkhattabi, B.P. 549, Marrakech
– Morocco
The Faculty of Sciences and Techniques of Marrakech (FSTM) is one of the components of Cadi
Ayyad University (UCA). UCA is one of the major universities of Morocco, with 13 institutions
(faculties and schools), covering four cities: Marrakesh, Safi, Essaouira and Kelaa des Sraghna.
FSTM was established in 1991, as an ordinary Faculty of Sciences in order to absorb the
increasing number of students of UCA and ever since has known continuous improvements. In
1993, FSTM became the first institution in Morocco to have implemented the modular system
with an ongoing evaluation. In 2006, the FSTM set up the LMD system and since then the
diplomas issued by FSTM are:
- PhD in Sciences and Technology.
- Master in Science and Technology degree (ST Master)
- State Engineering degree
- License in Science and Technology degree (LST)
Regarding research activities, the restructurings carried out in 2005 and 2011 has enabled greater
visibility of the laboratories and research teams in FSTM. FSTM is now known for its dynamic
potential that covers various fields of science and technology. It has 12 laboratories and 07
research teams who developed high quality research in collaboration with partners from all over
the world. These collaborations are developed in the framework of collaborative projects that
cover several research areas.
PL-2 Tuesday, February 9, 2016,Morning from 10h25 to 10:50
CURRENT STATUS OF RESEARCH AT FACULTY SCIENCE AND
TECHNOLOGY (FST), NATIONAL UNIVERSITY OF MALAYSIA
Sahrim Ahmad*
The National University of Malaysia, 43600 Bangi, Selangor, Malaysia. Faculty of Science and
Technology
*Corresponding author: sahrim@ukm.edu.my
The Faculty of Science and Technology (FST) was established officially on the 19th July
1999 as a result of the restructuring of four science-based faculties. FST strives to be the
centre of excellence in teaching, research and community services. FST encourages
multidisciplinary and innovative research toward attaining national and international
recognition. The main focus of our research are based on the expertise available at the five
schools in the Faculty related to pure and applied sciences. In the year 2015, our academic
staffs were involved in 217 projects sponsored by government , industries local and
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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international with the total grants of about USD 15 million. Research at FST are related to
atmospheric science, oceanography, bioresource bioprospecting, biodiversity, conservation,
ecosystem health and environmental quality, geo-hazards, geo-resource , prospecting,
computational mathematics, fundamental studies in mathematical sciences, modeling , quality
, performance measurement, quantitative finance, analytical and environmental, catalysis,
chemical , biosensors, food ingredients, food quality and safety, natural product chemistry and
oleochemistry, polymer and composites, synthesis of inorganic and organometallic
compounds, bioinformatics, bioremediation and environmental microbiology, development
biology, fermentation and enzyme technology, genomics,natural product biology, plant
biotechnology, advanced materials, energy, medical physics, metallurgy,nanophysics and
nuclear techniques. This paper will highlights some of the current work at the Faculty of
Science and Technology, National University of Malaysia (UKM).
IL-1 Tuesday, February 9, 2016, Morning from 10h50 to 11:10
MALAYSIA’S GLOBAL REACH: KNOWLEDGE AND SKILLS HUB
CREATION THROUGH INTERNATIONALISATION
Yang Farina*&Nur Amalina Rashid
Universiti Kebangsaan Malaysia
*Corresponding author: farina@ukm.edu.my
The internationalization of higher education has been a key thrust in the Malaysian Higher
Education Strategic Plan which was launched in August 2007. The initial objective of the
internationalization of Malaysian Higher Education was to turn it into an Education Hub with
emphasis on reaching a target of 80,000 foreign students by 2010. This number has been reached
and indicated the success of the plan. Malaysia now is seen as a key international player based on
sheer numbers alone. The international students bring in about RM 2.6 billion into the country in
the year 2010. The profiling of Malaysia as a centre of excellence for education has brought
success. However, to ensure sustainability the Ministry of Higher Education (MOHE) has
launched the Malaysia‘s Global Reach (MGR) plan which is aimed at positioning higher
education in Malaysia in the hearts of the people of the preferred partner countries. The
philosophy behind MGR is that higher education is seen as a platform for soft power. Soft power
in the higher education sector refers to the capabilities and intentions of institution to capture the
hearts and minds of local and international stakeholders to collectively accept values, ideologies
and cultures of learning that can benefit communities. Six main initiatives were launched namely;
Strengthening Global Engagement through Knowledge Sharing (MyExpert), Knowledge and
Skills Hub Creation through Internationalisation (MySkill), Leveraging On Student Alumni
Relations Towards Internationalisation (MyAlumni) and Enhancing World Presence through
Contribution and Reputation (MyCommuity, MyFellow & MyOdyssey). In order to achieve the
next quantum leap in the growth of higher education, Malaysia needs to leverage its technical and
vocational education and training hub as the next engine of economic growth and also wealth
creation. The MySkill initiative aims at enhancing the provision of short courses for preferred
partner countries including Morocco based on the respective countries‘ market requirements. It is
hoped that the provision of short courses can stimulate the growth for continued education in
diploma, degree and other levels of education and training.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Symposium 1: Green Technology & Catalysis
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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OP-1-1 Tuesday, February 9, 2016, Morningfrom 11:10 to 11:30
NATURAL CLAY AS STARTING MATERIALS FOR THE DEVELOPMENT OF
INNOVATIVE ADVENCED MULTIFUNCTIONAL ECO-FRIENDLY
MATERIAL
Benaissa Rhouta*
Condensed Matter and Nanostructures Laboratory (LMCN), Sciences and Technologies Faculty,
Cadi Ayyad University.Avenue Abdelkrim Khattabi. Box 549, 40000 Marrakech
*Corresponding author:b.rhouta@uca.ma
Works undertaken in our research group are focused on the development, starting from
cheap natural resources such as clays, of innovative advanced multifunctional eco-friendly
materialsfor being applied in versatile fields. This could be achieved thanks to structural
characteristics of clay minerals. Indeed, on one hand, clay minerals belonging to the smectites
family (montmorillonite, saponite, stevensite, ...) are characterized by a layered structure and high
cation exchange capacity making of them to be prone to chemical modification by intercalation of
various species. On the other hand, due to the discontinuity of their structure, microfibrous clays
(palygorkite and sepiolite) contain high density of reactive edge silanol groups to which different
species could be anchored. In both the cases, an interesting class of different hybrid advanced
materials useful for versatile applications could be emerged.
In this respect, the present presentation shows the success of immobilization, via different
routes, of TiO2 nanoparticles (10 nm) on microfibers of palygorskite and on layers of beidellite,
both the clay minerals are originated from Morocco. The developed TiO2 supported clays based
photocatalysts were found to exhibit remarkable stability of the most photoactive anatase phase
and hence improved photocatalytic activity towards the degradation of dyes in aqueous solution.
On the other hand, this presentation also reports the achievement of the intercalation within
beidellite spaces interlayers as well as the grafting to palygorskite edge silanol of corrosion
inhibitors (heptanoic acid, calcium, ...) which, once incorporated in organic coatings, exhibit
efficient protection of metallic substrate due to their progressive release.
OP-1-2 Tuesday, February 9, 2016, Morning from 11:30 to 11:50
GREEN SYNTHESIS OF CO3O4 NANOCRYSTALS VIA A NEW ULTRASONIC-
IONIC LIQUID -ASSISTED APPROACH
Shahidan Radiman1*
, Lamya M. Al-Qirby1, Chiu Wee Siong
2, Ameen M. Ali
3
1School of Applied Physics, Faculty of Science and Technology, UKM Bangi 43600 , Selangor
DE, MALAYSIA 2Low Dimensional Physics Group, Dept. of Physics, Universiti Malaya , Jalan Pantai 50603,
Kuala Lumpur, MALAYSIA 3Solar Energy Research Institute (SERI), UKM Bangi 43600, Selangor DE, MALAYSIA
*Corresponding author: shahidan@ukm.edu.my
Cobalt oxide CO3O4 nanoparticles with diverse morphology have been synthesized using
a simple, green, and cost-effective approach, via sonochemical method in an ionic liquid (IL), 1-
ethyl-3-methylimidazolium tetrafluoroborate [EMIM][BF4]. Influence of some parameters such
as sonication time and different molar ratios of the ionic liquid (IL) on the structural, optical,
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
20
chemical and magnetic properties were studied. The produced CO3O4 nanoparticles properties
were characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy
(FE-SEM), transmission electron microscopy (TEM), FTIR spectroscopy, UV-Vis spectroscopy,
and Vibrating Sample Magnetometer (VSM). We have also entended this method on other metal-
oxides nanoparticles production.
OP-1-3 Tuesday, February 9, 2016,Morning from 16:40 to 17:00 DESIGN AND SYNTHESIS OF NEW HYBRID AROTINOIDS CONTAINING
CHROMENE WITH POTENTIAL ANTI-CANCER ACTIVITY
A Kaoukabia, L. Belachemi
a, M. Lahcini
a, M-C. Viaud-Massuard
b, C. Das.Bhaskar
c
a: Laboratory of Organometallic and macromolecular chemistry- Composites materials–
Department of chemistry – Faculty of Sciences and Technology –University Cadi Ayyad of
Marrakech
b: Laboratory of organic chemistry, Faculty of pharmacy – 37 200 Tours - France
c: Medical Center, University of Kansas, 3901, Rainbow Boulevard, Kansas city KS 66160 – USA
*Corresponding author: b.belachemi@uca.ma
Retinoids are analogues of all-trans-retinoic acid (ATRA), a powerful hormone that mediates
many fundamental biological processes, including cell proliferation and differentiation and
apoptosis1. Cancer and other serious hyperproliferative diseases are attractive therapeutic targets
for retinoids2, but the therapeutic use of retinoids is limited due to severe toxicity. Retinoids
induce their powerful biological effects by binding to and activating nuclear receptors. There are
six known retinoid receptors, the retinoic acid receptors RAR,, , and the retinoid X receptors
RXR,,. ATRA binds with high affinity to all three RARs but does not bind to the RXRs3. A
geometric isomer of ATRA, 9-cis-retinoic acid, is the putative hormone for the RXRs, and it
binds to both RXRs and RARs with high affinity.In this paper, the novel hybrid hetero-arotinoids
compounds (I) including oxygen as a heteroatom in six-membered cyclic ring (chromene) and an
acetylenic or double bond part have been synthesized, as RAR and RXR ligands candidates.
These novel compounds were synthesized mainly by heterocyclization and coupling pallado-
catalysed reactions4, and using the Wittig or Horner-W-Emmons-type olefination reactions. These
new hetero-arotinoids were tested against Glioblastomamultiforma brain cancer and exhibited an
appreciable anti-tumor activity.
1 Sporn, M. B. Roberts, A. B., Roberts, A. B., Goodman, D. S., Eds. The Retinoids :Biology, Chemistry, and Medecine;
2nd ed.; Raven : New York, 1994. 2 V.C.O. Njar, L. Gediya, P. Chorpa, Biorg. Med. Chem., 14, 2006, pp : 4323-4340 ; R. J. Motzer, L. Schwartz, M.
Law; B. A. Murphy; A. D. Hoffman,. J. Clin. Oncol.1995, 13, 1950.Duvic, M.; Hymes, K., Heald, P., Breneman, D.;
Martin, A. G.; Crowley, C.; Yocum, R. C. J. Clin. Oncol.2001, 19, 2456.Bushue N. Adv. Drug Deliv. Rev. 2010, 62,
13, 1285-98 3 Heyman R. A.,; Mangeldorf, D. J.; Dyck, J. A.;Stein, R. B.; Thaller, C., Cell , 1992, 68, 397.
4 : Madich, Y ; Denis, J. D. ; Ortega, A. ; Martinez, C; Matrane, A.; Belachemi, L.; de Lera, A. R.; Alvarez,
R.;Aurrecoechea, J. M. Synthesis ,Vol.45 , 16, 2013, p : 2009-2017
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
21
CO2H
Retinoic Acid (Tretinoin)
CO2H
MeOAcitretin
Treatment of acute promyelocytic leukemia, Acne and Psoriasis
O
R''
R
R
R'
R
n
R = H, Me
R' = -CO2Et , -(CH=CH)2-CO2Et; -(CH=C(Me))2-CO2Et -CONH-C6H5-CO2Et ; -(C6H4)2-CO2Et
R'' = C6H5, MeOC6H5, F-C6H5, Cl-C6H5; CF3C6H5, C6H5-C=C ; C6H5-(CH=CH)-C6H4-
(I)
n = 1,3
PP-1
SYNTHESIS OF THE ISOCHROMENIMINES AND ISO-BENZOFURANIMINES
DERIVATIVES BY PALLADIUM-CATALYZED THREE-COMPONENT ONE-
POT STEPWISE SONOGASHIRA-HETEROCYCLIZATION/HECK-COUPLING
L. Belachemi [a]; A. Kaoukabi [a]; M. Lahcini [a], H. Kaddami [a], Y.Madich [a, b]; J. M.
Aurrecoechea [b]; R. Alvarez [c]; G. Denis; A. Ortega, C. Martinez [c].
[a] : Laboratory of Organometallic an Macromolecular chemistry – Composites Materials,
department of Chemistry – Faculty of Sciences andTechnology – University Cadi Ayyad of
Marrakech
[b] : Universidad del Pais Vasco UPV/EHU, Departamento de Quimica Organica II, Facultad de
Ciencia y tecnologia, Apartado 644, Bilbao, 48080, Spain
[c] : Universidade de Vigo, Departamento de Quimica Organica, Facultad de Quimica, Campus
As Lagoas-Marcosende, Vigo, 36310, Spain
*Corresponding author: kaoukabi1985@gmail.com; belachemi@yahooof.fr ; or
belachemi@fstg-marrakech.ac.ma
Palladium-catalyzed cascade heterocyclization/Heck-type coupling reactions have found
application in recent years in the synthesis of heterocyclic derivatives.
Simplification of multistep syntheses is often achieved by running two or more consecutive steps
in a one-pot procedure without isolation of intermediates. When metal-catalyzed reactions are
involved, one particular difficulty often encountered is the identification of a single catalytic
system compatible with all of the different steps involved in the overall transformation. We have
already described the preparation the preparation of products 4-6 in preparatively useful yields
starting from Sonogashira adducts derived from functionalized haloarenes 1 and alkynes 2, and
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
22
then using palladium- catalyzed heterocylization/Heck-type-coupling cascades with an alkene 3
under oxidative conditions4. In this contribution, we report that the same products 4-6 are
efficiently obtained by performing the consecutive palladium-catalyzed Sonogashira and
heterocylization/Heck cascade processes in a stepwise one-pot fashion, using the same catalyst,
and without isolation of the intermediate Sonogashira adducts. In the case of starting phenol- (1,
Nu = O) and aniline- (1, Nu = NH) type substrates, heterocylizations take place in the expected 5-
endo mode leading to benzofuran (4) and indole (5) products, respectively, whereas benzamides
(1, Nu = CONR) react regioselectively via 6-endo-O-cyclizations to afford coupling products 6
displaying a cyclic imidate structure. In this last case, it is also noteworthy that interference from
formation of alternative Cu-catalyzed 5-oxo-cylization-derived products is not a problem5.
Comparison with available literature data indicates that this one-pot strategy is advantageous in
terms of yields and operational simplicity. Additionally, it has allowed the incorporation of new
substitution patterns to the coupling products. Finally, functional group manipulation, allowing
for further structural flexibility in the final products (selective hydrolysis of esters, A = CO2Et, or
imino groups), is possible and will be also illustrated. The activity of these novel compounds was
evaluated as potential ligands for retinoic acid nuclear receptors RAR and RXR.
X
NuH
A
Y
A
O
A
N
O
N
A
+ R2
Pd(II), Cu(I)R2
R2
R1
or
1. X = I, BrNu = O, NH, CONR1
4. Y = O
5. Y = NH
R1, R2 = alkyle, arylA = EWG : CO2Et, COMe, CONH2
One-pot
3
6
2
R1
or
R2
Catalyst
4 Madich, Y ; Denis, J. D. ; Ortega, A. ; Martinez, C; Matrane, A.; Belachemi, L.; de Lera, A. R.; Alvarez, R.; Aurrecoechea, J. M.
Synthesis ,Vol.45, issue 14 july 16, p : 2009-2017 - 2013 , 5 Yao, B. ; Jaccoud, C. ; Wang, Q. ; Zhu, J. Chem. Eur. J. 2012, 18, 5864-5868.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
23
PP-2
THE EFFECT OF ADDITIVES ON THE CRISTALIZATION BEHAVIOR OF
CORDIERITE
Hanaa Hajjou 1, Latifa Saâdi
1, and Mohamed Waqif
1
1Nanostructures and Condensed Materials Laboratory (LMCN), Faculty of Science and Technology,
Marrakech, Morocco
Corresponding author: hajjou.hanaa@gmail.com , la.saadi@yahoo.fr, m.waqif@yahoo.fr
The cordierite (2MgO, 2Al2O3, 5SiO2) is a magnesium aluminosilicate that presents a very
significant technological interest, and constitutes a promising candidate in many applications
thanks to its physicochemical properties. Cordierite precursors were prepared by the co-
precipitation method from aluminum chloride, magnesium chlorides and silicic acid (H2Si2O5).
The work already done has shown that these samples calcined at 1300°C contains a significant
percentage of the cordierite and a small amount of spinel [1]. The inclusion of additives could be
beneficial to get pure cordierite.
The purpose of this study is to investigate the effects of additives on the crystallization behavior
of cordierite. In this regard, four additives were used (ZnO , NiO2 , TiO2 et CaO) with two
percentage (5% et 10%). The mineralogical analysis show that the use of additives decrease the
crystallization temperature of cordierite to 1200°C, with difference intensity from an additive to
another.
The addition of TiO2,either with 5 wt % or 10 wt %, leads to the crystallization of α-cordierite
from 1200°C. At 1300°C, the only crystalline phase detected was the α-cordierite. With the
addition of 5 wt % CaO, the dominant crystalline phase in the precursors fired at 1300°C, was
found to be α-cordierite. When the amount added was increased to 10 wt %, the predominant
crystalline phase was found to be α-cordierite, and the secondary phase to be sapphirine. With 5
wt % or 10 wt % of ZnO as additive, the α-cordierite was present as major phase along with the
spinel phase as a secondary phase at 1300°C. In the case of NiO2, the predominant crystalline
phase was the α-cordierite accompanied by sapphirine for 5 wt % NiO2 and by spinel for 10 wt %
NiO2.
As perspective, other properties should be investigated Along with the crystallization behavior
such as the size of grain in order to offer a more developed study.
KEYWORDS: cordierite, co-precipitation, additives.
[1] Hajjou Hanaa, Saâdi Latifa, Waqif Mohamed, Fatah Nouria ―Effect of silicon source on the
crystallization temperature of the cordierite‖ J. Mater. Environ. Sci. 7 (1) (2016) 176-186.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
24
PP-3
CRYSTALLIZATION OF MULLITE BY CALCING ANDALUSITE
CONCENTRATE EXTRACTED FROM LOCAL ORE
Yassine ZAKI1, L. ELFOUJJI
2, A. ARBAOUI
2, Latifa SAADI
1 et Mohamed WAQIF
1
1. Laboratoire de Matières Condensées et Nanomatériaux, Equipe d’Etude et Valorisation des
Ressources Minérales et des Matériaux Synthétiques EVAR-MIMAS, Faculté des Sciences et
Techniques Marrakech, Université Cadi Ayyad, BP549, Av. A. Khattabi, 40000 Marrakech,
Maroc.
Corresponding author: la.saadi@yahoo.fr
2. Laboratoire de Physique Théorique LPT-URAC 13, Faculté des Sciences, 4 Av. Ibn battouta,
BP 1014, Rabat
This work is focused on a comparative study of two samples of concentrates andalusite,
respectively obtained by different treatment of andalusite ore located in the Marrakech El Haouz
Tansift. The first sample is derived by sorting of andalusite pure grains (ANP) and the second
sample is obtained by flotation of the ore (AnF).
Analysis by infrared spectroscopy and by X-ray diffraction shows the presence, in the two
samples in the raw state, the andalusite phase which is the dominant phase and quartz as a
secondary phase. However, the sample (AnF) obtained by flotation contains a small amount of
halloysite and feldspar. The laser particle size analysis reveals that the two samples in the raw
state have the same particle size distribution characterized by a bimodal distribution having a
population concentration of grains respectively around 0.1 to 1µm and from 10 to 100µm.
Mineralogical analysis of two samples calcined (1000 -1400°C) allowed to detect the formation
of a small amount of mullite at 1200°C with a dominance andalusite on quartz. Calcination at
1300°C of the sample (PNA) shows mullite as main phase, marking the complete conversion of
andalusite mullite.
These results allowed us to conclude that it is possible to extract flotation andalusite from ore.
Also it is possible to obtain mullite by thermal treatment above 1200°C. Optimized flotation
conditions appears necessary to remove the secondary phases such as quartz and feldspar.
Keywords : ore, andalusite, flotation, calcining, mullite.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
25
Symposium 2: Materials & Energy
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
26
OP-2-1 Tuesday, February 9, 2016, Afternoon, from 14:00 to 14:20
ELECTROCHEMICAL ENERGY STORAGE MATERIALS
Ismail Saadoune*
Laboratoire de Chimie des Matériauxet de l’Environnement,
FST Marrakech, Av. A. Khattabi, BP 549, 40000, Marrakech, MOROCCO
*Corresponding author: i.saadoune@uca.ac.ma
Compared with traditional battery technology, lithium-ion batteries charge faster, last longer, and
have a higher power density for more battery life in a lighter package. For the last two
decades,Li-ion batteries have dominated the portable electronics industry including Electrical
vehicles, laptops....
For the stationary storage application (Solar & wind energies), Na-ion batteries have emerged as
the convenient candidateto make easier the development of these renewable energies as a result of
the large availability and the cheaper cost of sodium compared to lithium.
The Laboratory of Material and Environmental Chemistry (University Cadi Ayyad) started to
study electrode materials for Sodium and Lithium batteries since 1996. The main focus is to
develop new energetic materials based on Moroccan Mineral Resources (Phosphates, Cobalt,
Nickel, Manganese). The understanding of the structure, physical properties and the
electrochemical behavior of the targeted electrode materials was always the methodology adopted
in this Lab. to produce low production cost of active materials, with high storage performance
ready for scaling up.
OP-2-2 Tuesday, February 9, 2016, Afternoon, from 14:20 to 14:40
EFFECTS OF IODIDE/TRIIODIDE (I¯/I3
¯)RATIOS ON PALM BASED
POLYURETHANE POLYMER ELECTROLYTE FOR SOLID-STATE DYE-
SENSITIZED SOLAR CELL
M. Faizzi
1, N.A. Ludin
1, N.M. Mohamed
2, K.H. Badri
3,4, A. Ahmad
1,4M.S. Su’ait
1,3*
1Solar Energy Research Institute (SERI), UKM, 43600 Bangi, Selangor, Malaysia
2Centre of Innovative Nanostructures & Nanodevices (COINN), Universiti Teknologi
PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia 3Polymer Research Center (PORCE), Faculty of Science and Technology, UKM, 43600 Bangi,
Selangor, Malaysia 4School of Chemical Sciences and Food Technology, Faculty of Science and Technology, UKM,
43600 Bangi, Selangor, Malaysia
*Corresponding author: mohdsukor@ukm.edu.my
In this investigation, the optimization of iodide/triiodide (I¯/I3
¯) ratios on palm-based
polyurethane (PU) polymer electrolyte‘s composition for solid-state dye sensitized solar cell
(DSSC) application is explored. Polyurethane polymer electrolyte is synthesized under nitrogen
gas atmosphere by pre-polymerization reactions between palm kernel oil monoester-OH (PKO-p)
and methylene diphenyl diisocyanate (MDI) at different LiI/I2 molar ratios. The effects of
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
27
I¯/I3
¯molar ratios optimization on photovoltaic characteristics (short circuit current density, open
circuit voltage, fill factor and power conversion efficiency) of solid-state DSSC is examined by
light-current-voltage (LIV) measurements.The current-voltage characteristic of FTO/TiO2-
dye/PU-LiI-I2/Pt at LiI/I2 1:0.5 molar ratio demonstrated a photovoltaic response with a power
conversion efficiency of 2.03 % under a standard AM 1.5G illumination. The short circuit current
density (Jsc) and open circuit voltage (Voc) is measured at 10.31 mA cm−2
and 0.54 V,
respectively. These promising results could be a first step toward a new generation of low-cost
and effective solid-state DSSC.
Keywords: Bio-based Polyurethane, iodide/triiodide, dye sensitized solar cell, Polymer electrolytes
OP-2-3 Tuesday, February 9, 2016, Afternoon, from 14:40 to 15:00
PREPARATION AND CHARACTERIZATION OF THERMAL AND
RHEOLOGICAL BEHAVIOR OF TiO2/FATTY AND NANOFLUID ACID AS
PHASE CHANGE MATERIALS (PCM)
Mohammed Ouikhalfan
1, Hassan Benmhamed
1, Hassan Chehouani*
1, Hamid Kaddami
2, B.
Benhamou3
1 Laboratory of Processes, Metrology and Materials for Energy and Environment (LP2M2E),
FSTG, University of Cadi Ayyad, Marrakech, Morocco. 2Laboratory of Organometallic and Macromolecular Chemistry, FSTG, University of Cadi
Ayyad, Marrakech, Morocco. 3 Laboratoire EnR2E, Centre National d’Étude et de Recherche sur l’Eau et l’Énergie
(CNEREE). Université Cadi Ayyad, Marrakech.
* Corresponding author: chehouani@hotmail.fr
The latent heat storage method with phase change materials (PCMs) stand as a remarkable
solution for thermal energy storage. In building as in many other applications, it is needed to find
a solution to gather the thermal heat during the day to get use of it throughout the night. PCMs
reduce heating/cooling energy consumption, provide a thermal protection, decrease the effect of
peak load and offer a thermal inertia.
Organic phase change materials such as paraffins and fatty acids are attractive due to their high
latent heat per unit weight and mostly non-corrosive and chemically stable, but they have a low
thermal conductivity.
For this aim, TiO2 nanoparticles were dispersed into a commercial fatty acid, mainly to enhance
the low thermal conductivity of this phase change material. A conventional method was adopted
to insure a better dispersion, based on melting the PCM, adding nanoparticles, mechanical stirring
and unltrasonic dispersion. Thermal conductivity measurement was performed in solid state (at
30°C) and liquid state (at 65°C), by a transient hot wire apparatus. We used a Brookfield
viscometer to determine the viscosity of the PCM in the liquid state (called also nanofluid), and
the Differential Scanning Calorimetry (DSC) to evaluate the latent heat capacity. A thermostatic
bath served to fix the temperature.
Indeed, the transient hot wire measurement technique showed an improvement of thermal
conductivity by 43% in liquid state and 21% in solid state only by adding 0.3% of mass of TiO2.
The rheological behavior of the ‗nanofluid‘ is studied in a temperature range of 65°C – 85°C, the
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
28
fluid is found to be getting viscous by adding nanoparticles, or falling temperature, the viscosity
theoretical models are well predicting the results. For the latent heat capacity, the DSC shows an
insignificant instability, which does not affect the thermal energy storage application.
OP-2-4 Tuesday, February 9, 2016, Afternoon, from 15:00 to 15:20
BIOPOLYMER ELECTROLYTE FOR ELECTROCHEMICAL ENERGY
STORAGE DEVICE: UKM EXPERIENCES
A. Ahmad* School of Chemical Sciences and Food Technology, Faculty of Science and Technology,
The National University of Malaysia (UKM) 43600 Bangi Selangor Malaysia
*Corresponding author: azizan@ukm.edu.my
Polymer electrolyte materials have been studied due to the possibility of their application in a
variety of electrochemical devices such as batteries, solar cell, electrochromic displays and fuel
cells. Synthetic polymers that are commonly used as hosts face disadvantages, such as high cost
and not being environmentally ―green‖. As an alternative way to obtain polymer hosts with a
lower cost, in an environmentally-friendly manner and with good chemical and physical
properties, natural polymers, such as polysaccharides and its derivatives and modified natural
rubber have been investigated. In this paper, we discuss the current status of knowledge, potential
and performance of biopolymer electrolyte from fundamental toward application.
Keywords: Biopolymer, energy storage, Polymer electrolytes
OP-2-5 Tuesday, February 9, 2016, Afternoon, from 15:20 to 15:40
SOLAR IRRADIANCE FORECASTING USING EXPONENTIAL SMOOTHING
TECHNIQUE
Mira Syahirah, Lee Veng Chuan, Ahmad Mahir Razali*& Nurulkamal Masseran
Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi,
Selangor D. E., MALAYSIA
*Corresponding author: mahir@ukm.edu.my
Forecasting solar irradiance is deemed as an important method when the information of solar
irradiance provided by satellite is unavailable. In this paper, exponential smoothing (ETS) is used
to fit solar irradiance data in the East Coast of Peninsular Malaysia specifically in Kuala
Terengganu. Two decomposition methods are proposed. The first method considers additive
seasonal-trend decomposition prior to the use of ETS. The second method decomposes the global
horizontal irradiance (GHI) time series into a direct and diffuse decomposition. The efficiency of
the models are determined by using four different standard forecasting accuracy measures such as
MAPE, MAD, MSD and RMSE. It was found that the first method which used GHI model is the
best method to forecast solar irradiance in Kuala Terengganu.
Keywords: Solar Irradiance; Global Horizontal Irradiance; Exponential Smoothing
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
30
Symposium 3: Water, Geology&Environment
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
32
OP-3-1 Wednesday, February 10, 2016, Morning from 8:30 to 8:50
ENVIRONMENTAL CHALLENGES FACING MINING WASTES
MANAGEMENT IN MOROCCO
RachidHakkou*
LCME, Université Cadi Ayyad, FST-Marrakech, Av A. Khattabi, BP 549, 40000 Marrakech,
Morocco.
*Corresponding author: r.hakkou@uca.ac.ma
With its rich and diverse mineral resources and its geological formations belonging to the whole
geological series, Morocco has a long mining tradition, spanning several centuries. A succession
of orogenic belts (from the Precambrian to the Tertiary) is endowed with various types of
deposits. Morocco, like many other countries with large mining industries, is increasingly
concerned about the serious environmental problems that mine wastes can cause, particularly
around abandoned mines. In this context, since 2009the IDRC Research Chair in ―Management
and Stabilization of Mining and Industrial Wastes‖ has developed, both in the laboratory and in
the field, cost-effective restoration methods adapted to semi-arid climatic conditions to manage
and stabilize harmful mine wastes. Environmental characterization and reclamation research
activities have been conducted at nine mine sites: Tiwine (Mn), Tiouit (Ag, Au, Cu) and
Zgounder (Ag) in the Anti-Atlas; the Erdouz mine (Pb, Zn) in the High Atlas; the well-known
Kettara mine (FeS) in the Jebilet Massif; the Zaïda and Mibladen mines (Pb) in the Upper
Moulouya (between the Middle and High Atlas); and the Jerada (anthracite) and Touissit (Zn, Pb)
mines in eastern Morocco. Furthermore, the team also investigated new technologies for the
recycling and valorization of non-polluting mine waste.
A significant outcome of work to date is the restoration of the abandoned Kettara mine site,
which had been leaching heavy metals into the soil and water table for decades. IDRC funding
and collaboration with UQAT have made this effort possible. Indeed, the promising results of the
Kettara field investigation validated the reclamation scenario of this site through the reuse of
phosphate mine wastes as a store-and-release (SR) cover. The rehabilitation scenario of the
abandoned Kettara mine (school site) is almost performed. The business plan of the reclamation
is being finalized.Thanks to IDRC funds and the transfer of UQAT (CRC) knowledge, the Kettara
mine site will be the first site restored in North and West Africa.
Studies of other mines are sufficiently advanced to propose and implement cost-effective ways to
remediate or mitigate their tailings or to valorize their tailings as raw materials for bricks and
ceramics, for example. For the Upper-Moulouya mining district Zeida and Mibladen sites), the
reclamation project consists of studying the feasibility of using mine tailings as aggregates for
mortars. The obtained result show that using the upper Moulouya tailings (as aggregates leads to
the production of mortars with good mechanical properties, requiring more water and having
longer open time than reference sand-based mortars. Moreover, incorporating tailings in mortars
successfully prevented the leaching of metals (Pb, Zn, Cu, Cr and As).
Furthermore, the use of mine wastes to make fired bricks is a very promising method. It could
reduce considerably the abusive consumption of finite resources in construction domain. Besides,
good quality bricks may be produced entirely from only mine wastes. Recent results about fired
bricks corresponding to three types of mine wastes and reference materials are promising. The
wastes studied are: treated (Pb removed) calamine process mine tailings, phosphates waste rocks,
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
33
coal mine waste rocks and treated (decarbonized) coal mine tailings.The obtained results show
clearly that the technical performance of fired bricks made from the mine wastes depend mainly
on the nature of each waste.
OP-3-2 Wednesday, February 10, 2016, from 8:50 to 9:10
THE IMPACT OF ENGINEERING STRUCTURES ON SHOREFACE AND
SHORELINE CHANGES IN THE ATLANTIC COAST OF MOROCCO: MULTI-
METHOD ANALYSIS- CASE OF AGADIR BAY MOROCCO-
Ismail Aouiche, Lahcen Daoudi
Laboratoire de Géosciences et Environnement, Faculté des Sciences et Technique, Université
Cadi Ayyad-Marrakech, B.P.549, Marrakech, Morocco
*Corresponding author: l.daoudi@uca.ma
Sandy beaches are some of the most active geological systems in the world and their morphology
commonly responds rapidly to high and low-energy conditions. The links between shoreline
fluctuations and larger-scale coastal change embracing the shoreface are not always well
understood. In particular, meso-scale (years to decades) sand exchanges between the shoreface
and the shoreline, considered as important on many wave-dominated coasts, are rather poorly
understood and difficult to identify. Coastal systems where sediment transport is perturbed by
engineering structures on the shoreline and shoreface commonly provide fine examples that are
liable to throw light on these sediment exchange links.
Achieving the objective of highlighting these links on coasts requires the crossing of methods that
jointly address coastal morphological change, bathymetric change and the hydrodynamic forcing.
. The case of Agadir beach represents a fine example of the dilemma that faces many developing
countries, where economic activities, notably harbours, are exerting an increasingly stronger
stranglehold on the coast. Using a combined methodological approach based on wave–current
modelling, bathymetric chart-differencing, determination of shoreline fluctuations, and beach
topographic surveying, we highlight the close links between variations in the bed of the inner
shoreface and the bay shoreline involving both cross-shore and longshore sand transport
pathways, sediment budget variations and new sediment cell patterns. We show that the
significant changes that have affected the bay shoreline and shoreface since 1978 clearly reflect
anthropogenic impacts, notably blocking of alongshore sand transport by Agadir harbour,
completed in 1988, and the foundations of which lie well beyond the depth of wave closure.
Construction of the harbour has led to the creation of a rapidly accreting beach against an original
portion of rocky shoreline updrift and to a net sand loss exceeding 145,000 m3/year between 1978
and 2012 over 8.5 km2of the bay shoreface downdrift. Digital elevation models of part of the bay
beach between 2012 and 2014 confirm this on-going sand loss. These changes have involved the
establishment of two divergent longshore bay sediment cells instead of the original single
unidirectional cell. A prospective view of these changes suggests that perturbation of longshore
drift and the on-going bay sediment budget deficit will eventual directly pose threats to the
harbour access and to coastal tourism on which the economic growth of Agadir has been built.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
34
OP-3-3 Wednesday, February 10, 2016, Morningfrom 9:10 to 9:30
MOROCCAN LACUSTRINE SEDIMENTS AS A VALUABLE PALEO-
ENVIRONMENTAL ARCHIVES
Benkaddour A. 1, Rhoujjati A.
1, Nourelbait M.
2, Vidal L.
3, Idabdellah H.
1,3, Adallal R.
1,3, and
Cheddadi R.2
*Corresponding author:a.benkaddour@uca.ma
1Université Cadi Ayyad, FSTG, Laboratoires Géo-ressources, (URAC 42), Bd. A. Khattabi, BP
549, 40 000, Marrakech,Morocco. 2UniversitéMontpellier-2,InstitutdesSciencesdel’Évolution,UMRUM2-CNRS-
IRD5554,Montpellier,Franc 3CEREGE, UM34, Université Aix-Marseille / CNRS UMR 7330/IRD UMR 161, Europôle de
l'Arbois BP8013545 Aix en Provence cedex, France
Moroccan mountains, lying at the extreme North Africa, are climatically a sensitive area to the
influence of Mediterranean Sea, Saharan desert and Atlantic Ocean air masses. Past
environmental changes are recorded in different natural archives such as lacustrine sediments.
Thelatter are one of the most interesting and reliable non-marine palaeo-archives that Morocco
has for studying past hydrology, limnology and climate changes. Palaeoclimatic reconstructions
are based on a variety of proxy data using both biological and sedimentary indicators. The
Moroccan mountains contain several small basins with natural lakes where Quaternary deposits
may be retrieved. Besides the natural changes, the Moroccan mountains have been impacted by
recent human disturbances which also be identified in the fossil records. Fluctuations in the
balance between precipitation and evaporation are translated directly into changes in lake level
and salinity.
Moroccan lakes have been the subject of multidisciplinary investigations during the last five
decades. Most of these studies aim to reconstruct the Holocene climatic and environmental changes.
Relevant reconstructions were obtained from palynological, geochemical and isotopic data.
OP-3-4 Wednesday, February 10, 2016, Morning from 9:30 to 9:50
AN EXAMPLE OF THE JOINT INTERNATIONAL LABORATORY: REMOTE
SENSING OF WATER RESOURCES IN SEMI-ARID MEDITERRANEAN
BASINS: LMI-TREMA
Er-Raki, S*, Simonneaux, V. et al.
LP2M2E/LMI-TREMA, Département de Physique Appliquée, Faculté des Sciences et Techniques,
Université Cadi Ayyad.
*Corresponding author:s.erraki@gmail.com/s.erraki@uca.ma
A joint international laboratory (LMI) (Jarlan et al., 2015) is an operational structure created
on IRD (Research Institute for Development) initiative for research and training. LMI are located
in the premises of a southern partner allowing the realization of joint training and research around
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
35
a common scientific platform. The LMI TREMA, based at the Cadi Ayyad University of
Marrakech (UCAM; Morocco), involves a multidisciplinary team of researchers and professors
from several research institutions in Morocco and in France. It has been created in 2011 based on
a long lasting collaboration between CESBIO and actors of the Marrakech region within the
frame of the SUDMEDprogram (Chehbouni et al. 2008) among which UCAM, Agricultural
Office of the Haouz Plain (Office Régional de Mise en valeur Agricole du Haouz, or ORMVAH)
and The Hydraulic Agency of the Tensift (Agence du Bassin Hydraulique du Tensift, or ABHT).
As such, it can be considered as the second phase of the Morocco component of the SUDMED
program. This creation although in the continuity of the activities led within the framework of the
SUDMED program, entails a change of scale at two levels: (1) scientific with the integration of
new scientific questions (in particular, the groundwater dynamic was merely not addressed
within the first phase of the project); (2) in terms of partnerships as the Laboratory has been
opened to new partners on targeted thematics including national institutions such as the
Meteorological Office of Morocco (Direction de la Météorologie Nationale or DMN; Casablanca,
Morocco) and the National Center for Energy, Sciences and Nuclear Technics (Centre National
de l’Energie, des Sciences et des Techniques Nucléaires or CNESTEN; Rabat, Morocco).
The scientific activities of the joint international laboratory TREMA are supported by an
experimental design of in situ and satellite data sets structured as an observatory of the water
resources of the Haouz catchment. The study of the soil–plant–atmosphere exchange processes
and the integrated hydrological functioning of the catchment are the main objectives of the
laboratory. The irrigated crops, which use 85% of available water, are particularly studied to
quantify water exchanges by evapotranspiration and deep drainage. Finally, the laboratory
TREMA is dedicated to contribute to training and building capacity, by promoting the use of
remote sensing observations by engineers from management institutions through short training
session and by training research PhD students.
Bibliography :
Jarlan, L., Khabba, S., Er-Raki, S., et al., 2015. RemoteSensing of Water Resources in Semi-Arid
Mediterranean Areas: the joint internationallaboratory TREMA, International Journal of Remote
Sensing, 36:19-20, 4879-4917, doi:10.1080/01431161.2015.1093198.
Chehbouni, A., R. Escadafal, B. Duchemin, et al., 2008. An Integrated Modelling and Remote
Sensing
Approach for Hydrological Study in Arid and Semi-arid Regions: The SUDMED Programme.
International Journal of Remote Sensing 29 (17–18): 5161–5181.
doi:10.1080/01431160802036417.
OP-3-5 Wednesday, February 10, 2016, Morning from 9:50 to 10:10
SNOW COVER DYNAMIC OF THE MOROCCAN ATLAS MOUNTAINS
A.Marchane1& L. Hanich
1
1Laboratoire de Géoressources - Unité associée au CNRST (URAC42), Département des Sciences
de la Terre, Faculté des Sciences et Techniques, Université Cadi Ayyad, Av. A. Khattabi, BP 549,
40000 Marrakech, Morocco.
*Corresponding author: l.hanich@uca.ma
Over semi-arid areas, snow cover in the mountains represents an important source of water for
many people living downstream. This study evaluates the daily MODIS snow covered area
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
36
products over the 7 catchments with a rain-snow functioning covering the Atlas chain in
Morocco. To this objective, more than 4600 daily MODIS images from September 2000 to June
2013 have been processed based on a spatio-temporal filtering algorithm aiming at reducing the
cloud coverage and the problem of discrimination between snow and cloud. The number of pixel
identified as cloud is reduced by 96% from 22.6% to 0.8%. In a second step, the ability of the
product to detect snow is tested against 5 stations of automatic snow depth measurements
covering 22 complete seasons. The overall accuracy is equal to 90%. Although slightly lower
than previously published validation studies, this is fairly good considering the highly varying
dynamic of the snow cover in the region characterized by period of complete ablation even during
the core of the winter due to high incoming radiation. The timing of the seasonal snow is also
correctly detected with 11.4 days and 9.4 days of average errors with almost no bias for the onset
date and the ablation date, respectively and 18.2 days on the snow cover duration. The processed
fractional snow cover is also tested against a series of 19 clear images acquired by the
FORMOSAT sensor at 8-m resolution from February to June 2009 in the Tensift catchment
(Marrakech). The comparison of the two datasets results in a correlation coefficient of r=0.94 and
an average low bias of 3.96 km² but some differences are observed during the very end of the
ablation phase. Finally, the processed snow cover products provide insights into spatio-temporal
variability of snow cover in the region which is analyzed through seasonal indicators including
onset and melt-out date, the snow cover duration (SCD) and the maximum snow cover extent: (1)
the dynamic is characterized by a very strong interannual signal with a variation coefficient of the
maximum Snow covered extent reaching 77%; (2) there is no evidence of a statistically
significant long term trend on none of the seasonal indicators although results point out that the
snow cover duration has increased in winter and decreased in spring for the 2001-2013 period.
The study concludes that the daily MODIS product can be used with a reasonable confidence to
map snow cover in the South Mediterranean despite difficult detection conditions. This
characterization of snow pack dynamic at seasonal and inter-annuel scale is also an important and
unique information in the region for water managers such as basin hydraulic agency to plan water
management at the catchment scale.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
38
Symposium 4: Biology and Biotechnology
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
40
OP-4-1 Wednesday, February 10, 2016, Morning from 10:30 to 10:50
MOROCCAN STRAINS OF YEASTAND ALGAE TO PRODUCE BIOENERGY
Ahansal Lahcen; Hammoumi Aayah, Clarisse Iradukunda; Boussaid Abdellatif*
Bioprocess Engineering team, Department of Biology, Faculty of Sciences and Technology
Marrakech, Cadi Ayyad University, Marrakech, Morocco.
*Corresponding author: a.boussaid@uca.ma
The production of oil was compared for locally isolated strains of and algae asomycetous as well
as basidioycetous strains of yeasts. Many strains showed a consistent level of production higher
than 50% oil per biomass dry weight. The fatty acid profiles showed a dominance of C16 to C18
especially for yeast strains. The highest levels of il production were obtained for glycerol as the
only source of carbon and ratios of C/N around 50 for these yeast strains. Cultures of strains of
Dunaliellla salina led to significantly lower oil productivity due to lower growth observed or
algae strains. Furthermore, carotenoids production by some yeast strains showed potential for
exploitation thereby improving the economical outlook of using some of these strains for
biodiesel as well as carotenoids production.
OP-4-2 Wednesday, February 10, 2016, Morning from 10:50 to 11:10
BIOTRANSFORMATION OF BLACK LIQUOR OF OIL PALM EMPTY FRUIT
BUNCH FIBER (OPEFBF) INTO VANILLIN BY Pycnoporus cinnabarinus MUCL
39533
Pei-Ling Tang
1, Osman Hassan
1*, Mohamad Yusof Maskat
1, Khairiah Badri
1,2
1School of Chemical Sciences and Food Technology, Faculty of Science and Technology, The
National University of Malaysia, 43600 UKM Bangi, Selangor, Malaysia. 2 Polymer Research Center (PORCE), Faculty of Science and Technology, The National
University of Malaysia, 43600 UKM Bangi, Selangor, Malaysia.
*Corresponding author: osman@ukm.edu.my
This study was conducted to maximize the vanillin yield from black liquor of oil palm empty fruit
bunch fiber (OPEFBF) after fermentation with Pycnoporus cinnabarinus MUCL 39533. A
preliminary study was conducted on the behavior of P. cinnabarinus MUCL 39533 using vanillic
acid and ferulic acid (vanillin precursor) as raw material for conversion into vanillin.
Subsequently, the suitability of crude OPEFBF black liquor and the recovered lignin as the
feeding substrate of fermentation were evaluated. Results of the study indicated that vanillic acid
is the most preferred substrate for vanillin production by P. cinnabarinus. For high yield vanillin
production, large volume feeding (LVF) was chosen. Addition of cellobiose enhanced the
conversion of ferulic acid into vanillin. This study successfully proved that lignin was the
preferred substrate than the crude black liquor for vanillin production. End product inhibition and
toxicity level were believed are the root causes of the unsuitability of crude black liquor as
feeding substrate. Besides, cellobiose was found to enhance non-productive metabolism of ferulic
acid in crude black liquor. Factors such as lignin feeding time, the presence of cellobiose and
Amberlite XAD 4 resin, as well as the method resin addition, affected the vanillin yield from
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
41
lignin fermentation. Eventually, maximum vanillin yield was achieved by fed lignin on day 3
incubation, in the presence of cellobiose and freely-distributed Amberlite XAD 4 resin (added on
day 3). Approximately 0.65±0.08 mg of vanillin was successfully produced from the fermentation
of 1 g of lignin by P. cinnabarinus MUCL 39533. In this study the optimized processing
operation was able to produce about 142.4 mg of vanillin from each kilogram of OPEFBF in.
Keywords: Black liquor, Ferulic acid, Lignin, Oil palm empty fruit bunch fiber (OPEFBF),
Vanillic acid, Vanillin.
OP-4-3 Wednesday, February 10, 2016, Morning from 11:10 to 11:30
EFFECT OF DEODORIZATION PROCESS ON THE FISHY AROMA,
ANTIOXIDANT ACTIVITY AND FUCOSE CONTENT OF FUCOIDAN
Sharifah Habibah Syed Khalafu, Wan Aida Wan Mustapha*, Lim Seng Joe, Mohamad Yusof
Maskat and Sahilah Abd Mutalib
School of Chemical Sciences & Food Technology, Faculty of Science & Technology, Universiti
Kebangsaan Malaysia, UKM 43600, Selangor DE, Malaysia
*Corresponding author: wanaidawm@ukm.edu.my
The objective of this research was to determine the most efficient deodorize process of
commercial fucoidan with least fishy aroma, high antioxidant properties and fucose content.
Three different method of deodorization were used namely activated carbon (1:15), ion exchange
resin (Amberlite 67) (1:2) and deacidification (1% CaCO3). Reduction of fishy aroma
wasdetermined via sensorial analysis by using Kramer‘s rank table. Sensory result showed
significant differences (p<0.05) in all processes where activated carbon was the most efficient
deodorize process to eliminate fishy aroma from fucoidan sample. Antioxidant activities
determination using free radical scavenging activity assay (DPPH), superoxide anion scavenging
activity (SOA) and hydroxyl radical scavenging activity (OH) were carried out before and after
the deodorization process took place. Again result showed that fucoidan treated with activated
carbon could maintain the former antioxidant activity of fucoidan compared to the other two
processes. Total fucose content measured using colorimetric method (396nm and 427nm) also did
not show any significant differences in sample treated by activated carbon. Therefore it can be
concluded that activated carbon was the most efficient process to eliminate fishy aroma without
losing the functional properties of fucoidan.
Keywords: Deodorization; Fucoidan; Antioxidant; Fishy Aroma
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
42
OP-4-4 Wednesday, February 10, 2016, Morning from 11:30 to 11:50
YEASTS IN SMEN, A FERMENTED FARM
Clarisse Iradukunda*, Yassir Barcouch , Ahmed Tadlaoui Ouafi & Abdellatif Boussaid
Bioprocess Engineering team, Department of Biology, Faculty of Sciences and Technology
Marrakech, Cadi Ayyad University, Marrakech, Morocco.
*Corresponding author: clarys002@yahoo.fr
Smen is a traditional fermented Moroccan product prepared from farm butter fermented up to a
few years in closedearthyjars. Lipolysis has been described as the main mechanism that leads to
the formation of smen. This work is oriented towards the understanding of the role of yeasts in
the fermentation of smen and the production of aromas along with the analysis of the quality of
this commercial product.
We analyzed 17 samples of commercial final products of smen, collected in the area of
Marrakech, for total flora; yeasts and moulds; lactic acid bacteria; lipolytic flora; proteolytic
flora; coliforms, fecal streptococci and pathogenic staphylococci.
Physicochemical and microbiological compositions of smen varied widely. Average fat content,
water, dry matter, salt, lactose and proteins are respectively 81%, 10-20%, 2.73 to 7.36%, 0.9 to
3.4%, 1.2% and 3.25%. Present in 59% of samples, Lactobacillus were the main lactic acid
bacteria at 3.105 CFU/g of smen. Fecal coliforms and presumed pathogenic staphylococci were
both found in 3 samples with concentrations above the safety standards for fermented food.
Comparing the different floras, yeasts were the predominant microorganisms and their
contribution in the fermentation and maturation of smen should be important as for they
constitute the major part of lipolytic and proteolytic floras. This may be linked to their metabolic
activity and ability to resist to physicochemical stresses as it is the case of smen environment.
Many strains were observed such as Geotrichum sp., Yerrowia sp., Debaryomyces sp.,
Saccharomyces sp., Klyveromyces sp., Candida sp., and Rhodotolura sp.
The presence and role of yeast in smen have been overlooked. However, we think that their
lipolytic and proteolytic properties, formation of aromas, probiotic effect and their killer factors
towards undesired bacteria contribute to smen maturation and safety.
OP-4-5 Wednesday, February 10, 2016, Morning from 11:50 to 12:10
OxiCount KIT: A QUICK METHOD TO DETERMINE ANTIOXIDANT
ACTIVITY IN PLANT MATERIALS
Aminah Abdullah
*and Khalid Hamid Musa
School of Chemical Sciences & Food Technology, Faculty of Science & Technology, 43600
UKM, Bangi Selangor, Malaysia
*Corresponding author: aminahsensory@ukm.edu.my
There is an increasing interest in antioxidants, particularly in those intended to prevent the
presumed deleterious effects of free radicals in the human body, and to prevent the deterioration
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
43
of constituents of foodstuffs. The capacity to scavenge the 2,2-diphenyl-1-picrylhydrazyl (DPPH)
free radical can be expressed as a measure of antioxidant activity. In this assay, the purple
chromogen radical is reduced by antioxidant/reducing compounds to the corresponding pale
yellow hydrazine. In the classical DPPH assay, a large volume of freshly prepared DPPH solution
(2.9-3.9 ml) is required daily. An alternative approach for overcoming the classical method
limitations is proposed. In this research, DPPH was dried into 96 well microplate to produce
DPPH dry reagent array plate, based on which the highly sensitive and high throughput
determination of antioxidant activities was achieved. The spectrophotometric characterization of
the microplate containing dried or fresh DPPH free radicals will be reported. The advantages of
the newly- developed kit over the conventional DPPH assay will be highlighted
OP-4-6 Wednesday, February 10, 2016, Afternoon from 14:00 to 14:20
MANIPULATION OF MICROBIAL GENE EXPRESSION FOR PRODUCTION
OF NEW SECONDARY METABOLITES
Rozida Khalid*
School of Chemical Sciences & Food Technology, Faculty of Science & Technology, Universiti
Kebangsaan Malaysia, 43600 Bangi Selangor, Malaysia
*Corresponding author: rozidakhalid@ukm.edu.my
Microbial gene expressions of secondary metabolites are usually influenced by its surrounding
environment. Thus, many studies manipulate microbial culture conditions to induce production of
new metabolites. Here, Mycosphaerellagraminicola (fungi), Glaciozymaantarctica (yeast) and
Bacilluslehensis (bacteria) were grown at different culture conditions and/or induced with
epigenetic modifiers for production of new metabolites. Results show that some culture
conditions are much more conducive for gene expression and that the efficacy of epigenetic
modifiers to induce gene expression varies amongst microorganisms.
Keywords: Mycosphaerella graminicola, Glaciozyma antarctica, Bacillus lehensis, epigenetic
modifiers, microbial secondary metabolites
OP-4-7 Wednesday, February 10, 2016, Afternoon from 14:20 to 14:40
LEGUME-RHIZOBIA SYMBIOS COULD BE AN EFFICIENT BIOLOGICAL
TOOL FOR SUSTAINABLE SOIL AND CROPS FERTILIZATION
Makoudi B1., Bargaz A.
1, Farissi M.
1, Mouradi M.
1, Kabbaj A.
1, Bouizgaren A.
2, Drevon JJ.
3 ,
And Ghoulam C.1
1Unit of Plant Biotechnology and Symbiosis Agrophysiology, Faculty of Sciences and Techniques,
B.P 549, Gueliz, Marrakech; 2Unit of Plant Breeding and Quality, INRA, Marrakech;
3UMR Eco &Sol, INRA, Montpellier, France
*Corresponding author: c.ghoulam@uca.ma
Legumes culture occupies the second rank throughout the world after cereals. These species have
the ability to establish a biological nitrogen fixing symbiosis with soil rhizobia. This process
could supply, when operating normally, the necessary nitrogen amount for an adequate
production and contribute for fertilization of associate cultures too. However in many
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
44
agrosystems the optimal functioning of biological nitrogen fixation (BNF) is usually handicapped
by some environmental constraints as osmotic stresses and phosphorus deficiency. The main
objective of our research works is to select legume genotypes-rhizobia strains combinations more
performing for BNF under some main abiotic constraints. Our studies were carried out on grain
and forage legume species and the trials were conducted in fields, in farmers ‗fields and in the
experimental stations, and under green house in pot or hydraeroponic cultures. The cultures were
submitted to osmotic stress or phosphorus deficiency. The rhizobia strains used for plant
inoculation were generally isolated from nodules collected in the Haouz area. Our results showed
that osmotic stress affected negatively legume-rhizobia symbiosis for all of the tested
combinations with a significant variation between them. Thus, this constraint reduced plant
growth, nodulation, nitrogen fixation activity and increased the accumulation of oxygen reactive
species (ORS). The legume-rhizobia symbiosis developed some agrophysiological mechanisms to
cope with the effect of osmotic stress particularly in nodules that were qualified as a center of
ORS detoxification. Under phosphorus deficiency, nodulation and P contents in plant and nodules
were reduced with significant variation between symbiotic combinations. The symbiosis
established some physiological processes to improve its P nutrition particularly those allowing
solubilisation of insoluble P in the rhizosphere as medium acidification and excretion of
phosphatases. Also, beside these mechanisms serving itself, this symbiosis contributes to improve
cereal plant nutrition when associated in intercropping system.
OP-4-8 Wednesday, February 10, 2016, Afternoon from 14:40 to 15:00
GROWTH RESPONSES OF MANGROVE PLANTS TO ELEVATED
ATMOSPHERIC CARBON DIOXIDE AT OPEN ROOF GREEN-HOUSE
Baseem M. Tamimi, Wan Juliana Wan Ahmad*,Mohd. Nizam Mohd. Said&Che Radziah
Che Mohd. Zain
School of Environmental and Natural Resource Sciences, Faculty of Science and
Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia.
*Corresponding author: ayie@ukm.edu.my
Mangroves are extraordinary ecosystems, located at the interface of land and sea that offer a
considerable array of ecosystem goods and services. Climate change is one of the greatest threats
to this blue carbon ecosystem. This global problem has led to the other severe and long lasting
consequences such as climate variations and extreme weather events such as high temperature,
torrential rains, and droughts. Plants respond rapidly to the ongoing changes which significantly
differ from species to species and from year to year. Hence, the assessment on the effects of
extreme events on mangrove plants including climate change is vital. In this study, the effect of
elevated carbon dioxide concentration on two species of mangrove in monoculture and mixed-
culture experiment was examined. The monoculture experiment used the Rhizophoraapiculata and
R. mucronata species and mixed-culture were represented by a mixture of the two mangroves
species. The treatment of elevated carbon dioxide was at 600 ppm, which was exposed daily at
9.30 to 11.30 am. Morphology parameters of growth were measured weekly for eight weeks. Our
results showed that the effect of the increased carbon dioxide at low water salinity on the R.
apiculata monoculture stand was positive whereas on the R. mucronata monoculture stand was
negative compared to the control. The results also exhibited that the effect on the mixed-culture
mangroves was positive compared to the control. Our results revealed as well that the two
mangrove species adapted to the carbon dioxide enrichment after a few months. The results
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
45
indicated that a rise in the carbon dioxide concentration may further influence the abundance and
the distribution of mangrove plants in the natural environment.
Keywords: elevated CO2, mangrove, Rhizophoraapiculata, Rhizophoramucronata
OP-4-9 Wednesday, February 10, 2016, Afternoon from 15:00 to 15:20
ASSESSMENT OF FIREFLY ABUNDANCE AT NEW ECOTOURISM SITE OF
BERNAM RIVER, SELANGOR
Norela Sulaiman* and Shahara Ayub
School of Environmental and Natural Resource Sciences, Faculty of Science and Technology,
Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
*Corresponding author: norelaganun@gmail.com; vozela@ukm.edu.my
Prior to this study, no scientific documentation of firefly distribution and abundance along the
Bernam River, Selangor has ever been reported. Therefore, this study provides an important
baseline information for the conservation of the firefly, Pteroptyx spp. and its
natural habitat along the Bernam River in the state of Selangor as a new ecotourism site. This
study was conducted during two full moons and two new moons from February until April
2015, in which we surveyed the distribution and abundance (percentage cover estimation, PCE)
of congregating fireflies along the riparian reserves of the study site. Vegetation assemblages at
40 display stations where adult fireflies congregate to mate along the river were also recorded.
There are no significant differences in firefly abundance between the full moon and new moon
phases (p>0.05), indicating that the tourists can visit the fireflies at any time of the month for 365
days a year. The recorded data for male to female ratio is 3:1, indicating that the
firefly population is not stable and prone to decline because lack of females would lead to
decreasing fecundity and fertility rates. Thus, effort to increase the firefly population should be
made immediately, such as replanting of the degraded host plants of the fireflies. Colonies of the
synchronizing fireflies congregated mainly on two estuarine species, namely Sonneratia
caseolaris and Ficus sp. It is recommended that the primary host plant species, Sonneratia
caseolaris locally known as Berembang should be replanted along the degraded riverbanks to
attract the firefly colonies. There are no significant correlations (p>0.05) between the
Percentage Cover Estimation of fireflies and specific abiotic parameters (i.e. temperature,
relative humidity, wind, salinity, total dissolved solidsand conductivity). For this part of the
Bernam River to be developed as a new ecotourism site, it would require some mitigation
measures aimed towards increasing the firefly population to sustain the local tourism industry.
Keywords: distribution; abundance; Pteroptyx fireflies; Bernam River; Sonneratia caseolaris;
Ficus sp.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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OP-4-10 Wednesday, February 10, 2016, Afternoon from 15:20 to 15:40
USE OF THE ARBUSCULAR MYCORRHIZAL SYMBIOSIS AS BIOLOGICAL
TOOLS TO IMPROVE PLANT GROWTH AND TOLERANCE TO DROUGHT
AND POOR SOILS: DATE PALM AS A MODEL
Ahmed Qaddoury*
Plant Biotechnology & Agrophysiology of Symbiosis, University of Cadi Ayyad, Faculty of
Sciences and Techniques, Abdelkerim AlKhattabi streetPO Box 549 Marrakesh, Morocco
*Corresponding author: qadahmed@gmail.com
One of the main challenges for the sustainable management of agricultural land, especially in arid
and semi-arid area, is the combination of the proper use of plant biotechnologies and the
management of soil microorganisms as providers of key ecological services that has been at the
forefront of generating and promoting agricultural production. These organisms, often referred to
as ‗ecosystem engineers‘, ‗biocontrol agents‘ ‗biofertilizers‘ or ‗bioenhancers‘, can participate in
improving plant growth and nutrition, strengthening plant performance, restoring ecosystems and
combating pests and pollution. The most important providers of these ecological services are
arbuscular mycorrhizal (AM) fungi which can form a symbiotic association with roots of most
land plants including horticultural and forestry species. In this presentation, we will discuss the
main results of our recent investigations that have been conducted to assess the ability of
arbuscular mycorhizal fungi to increase plants tolerance to drought and poor soils. We will
discuss the most persuasive mechanism of the contribution of arbuscular mycorhizal fungi,
including water status, nutrient level, antioxidant defense system, osmotic adjustment and cell
damages alleviation.
Key words: Arbuscular mycorrhizal symbiosis, drought, poor soil, water status, antioxidant
defense system, osmotic adjustment.
OP-4-11 Wednesday, February 10, 2016, Afternoon from 15:40 to 16:00
THE OPTIMIZATION AND EFFICIENT ISOLATION OF HIGH QUALITY
RNA EXTRACTION FROM SALIVARY GLAND OF RHYNCHOPHORUS
FERRUGINEUS (COLEOPTERA: DRYOPHTHORIDAE)
1Nurul Hidayah, A.S. 1Nurul Wahida, O.*&2Norefrina Shafinaz, M.N. .
1School of Environmental and Natural Resource Sciences, Faculty Science and Technology
Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor 2School of Bioscience and Biotechnology, Faculty Science and Technology
Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor
A technique is described for rapid dissection of adult red palm weevil, Rhynchrophorus
ferrugineus, to facilitate diagnosis of RNA expression in salivary gland. Commonly, the integrity
of extracted ribonucleic acid (RNA) were analyzed by gel electrophoresis resulted in form of
rRNA band. However, it undergone slightly significant differ in R. ferrugineus when the RNA
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
47
were assessed by bioanalyzer. To date, this is one of the instruments used for RNA quality
assessment and currently become a gold standard tools by microfluidic capillary electrophoresis
systems. The analyses of bioanalyzer were undergone by heat-denatured steps as it was a prior
used in sample separation. Surprisingly, the R.ferrugines rRNA profiles were showed a single
rRNA peak of 18S instead of two expected clear peaks for two common bands of rRNA, 18S and
28S with the normal protocol. The RNA digestive tract of R. ferrugineus were then treated by the
bioanalyzer without head-denatured steps. As a result, two peaks of 18S and 28S rRNA was
observed. This results shows that the diagnosis of bioanalyzer with heat treatment immerged the
28S rRNA fragment and intact to 18S rRNA fraction. Hence, this result countered the matter of
gel electrophoresis that appeared with switch the 2:1 ratio of 28S/18S rRNA.Therefore, the usage
of this bioanalyzer could be used as an alternative way to validate the integrity of RNA in future.
Key words: RNA extraction, salivary glands, digestive tract, red palm weevil
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
48
Symposium 5: Physics
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
50
OP-5-1 Thursday, February 11, 2016, Morning from 8:30 to 8:50
HIGH TEMPERATURE CORROSION OF HOT DIPPED ALUMINISING ON
CARBON STEEL IN DRY AND WET ENVIRONMENTS
Zaifol Samsu*
1,2,, Norinsan Kamil Othman
1*, Abd Razak Daud
1, Muhamad Izhar
Sahri1and Muhammad Daud
2
1School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan
Malaysia, 43600 Bangi, Selangor 2Material Technology Group, Industrial Technology Division, Malaysian Nuclear Agency, 43600
Bangi, Selangor, Malaysia
*Corresponding author: insan@ukm.edu.my
Carbon steel can easily be corroded in various environments, particularly at high temperature and
wet environment. The oxide layer that formed on the carbon steel surface does not behave as a
protective layer (passive) from corrosion when the surface is exposed to high temperature. Thus,
the surface of the carbon steel must be coated with a metal that can form oxide surface and
intermetallic layer that can protect the carbon steel from high temperature corrosion. The
objective of this study is to determine the corrosion characteristics, microstructures and surface
morphologies of Al-xLa (x = 0.05-1%wt) coating material at 750oC under atmospheric air, dry
oxygen (Ar-20%O2) and wet oxygen (Ar-20%O2-20%H2O) flows. The optimum coating was
acquired by carrying out the hot dipping coating technique using pure Al at different molten
temperatures and dipping time. The coating specimens were exposed to atmospheric air, dry and
wet oxygen environments at 750oC. The specimen prior and after exposing Al-xLa coatings were
analysed using optical microscope, SEM and EDAX to study its surface morphologies, coating
cross sections and elemental compositions whereas phase compositions was determined using
XRD. The hot dipping technique caused two layers to be formed on the carbon steel surface, the
outer Al layer and the inner aluminide layer (Fe-Al). The aluminide layer itself consists of two
distinct layers of thin FeAl3 at the outer layer and much thicker Fe2Al5 on the inner layer. Results
from microhardness tests show that the aluminide hardness values increased with the increase in
molten Al temperatures used with no apparent change to the strength of Al layer. Results from the
high temperature experiments indicates that the optimum La content in Al is 0.3%wt that
provides the lowest corrosion rate with a kinetic constant of 3.45 x 10-11
g2cm
-4s
-1. This is because
the La content in the aluminizing improve the plasticity of aluminised layer and the adhesion
ability of Al2O3 film, caused promoting a form of protective oxide film and lead to reduce the size
and numbers of void formation at the aluminide layer. The Al layer diminished with the
formation of FeAl, FeAl2 and Fe2Al5 phases after the coating samples were exposed to high
temperatures. The presence of water vapor in the oxidant gas atmospheres lead to the rapid
degradation of aluminide layer caused by formation of voids and cracks that led to oxidation
occurs at the aluminide layer compared with dry oxygen. In conclusion, in addition of of La in
aluminising up to 0.3%wt can retard the corrosion rate of carbon steel at high temperature in
flowing of of atmospheric air, dry and wet oxygen gases.
Keywords :Hot dipped aluminising, Oxidation, water vapor and intermetallic
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
51
OP-5-2 Thursday, February 11, 2016, Morning from 8:50 to 9:10
SPECTROPHOTOMETRY OF PULSATING STARS AT OUKAIMEDEN
OBERVATORY IN MOROCCO A.Benhida
1,2, F. Sefyani
1,2,T. de France
3, Z. Benkhaldoun
1, D. Gillet
4, P. Mathias
5, A. Daassou
1,
M. Lazrek1
1: Laboratoire de Physique des Hautes Energies et d’Astrophysique (LPHEA) Université Cadi
Ayyad
2: Faculté des Sciences et Techniques département de Physique Appliquée, Marrakech
3: open-astronomy.org
4: CNRS Observatoire de Haute-Provence (OHP), France
5: Institut de Recherche en Astrophysique et Planetologie (IRAP) Tarbes, France
*Corresponding author: a.benhida@uca.ma
Location of modern observatories requires high sky quality: good weather, isolated site to avoid
any pollution, high altitude for a better transparency and to reduce temperature gradients, the
main source of atmospheric turbulence. With an altitude of 2750m, the region of Oukaimeden in
Morocco (longitude: 7°52'052" West, latitude: 3°112032" North) meets most of these criteria
With its 10'' and 14'' dedicated telescopes operating in remote control modes that
combines high precision photometry and high resolution spectroscopy (spectrograph Eshell of
R~10000 resolution over a wide spectral range), the universitary observatory of Oukaimeden
aims to develop new thematics in addition to present science. In particular, through this
instrumentation, we aim to develop the field of pulsating stars, especially the atmospheric
dynamics of high amplitude pulsators such as RR Lyrae and RV Tauri star, in order to establish
new models of the mechanical and thermal behaviour of their atmospheres (shock waves,
relaxation time, energy loss...).
In this work we will first describe our measuring instruments, and then analyze spectra
and photometric curves of RR Lyrae star obtained during the maximum of the Blazhko effect.
OP-5-3 Thursday, February 11, 2016, Morning from 9:10 to 9:30
PHASE-FIELD MODELING OF MICROSTRUCTURAL EVOLUTION
IN NI-BASE SUPERALLOYS AT HIGH-TEMPERATURE
O.boualy
1, H.Mharzi
2, A.Coujou
3, Y.Le Bouar
4, M.Benyoucef
1
1 : Laboratoirie of Condenssed Mater and Nanostructures (LMCN)
Faculté des Sciences et Techniques, B,P549, Av.Abdelkarim Elkhattabi, Guéliz Marrakech
2 : Université Ibn Toufail, Campus Universitaire, BP 242, Kenitra
3: CEMES 29, rue Jeanne Marvig, BP 94347, 31055 Toulouse Cedex 4 , France
4 : Laboratoire d’Étude des Microstructures, CNRS-ONERA, B.P. 72, F92322 Châtillon Cedex, France
*Corresponding author: m.benyoucef@uca.ma
Superalloys are unique materials developed for high temperature applications where
significant resistance to creep and thermal fatigue conditions is required. These materials display
excellent resistance to mechanical and chemical degradation. In particular, they are used in the
hottest sections of aeroengines such as turbine blades and vanes. Operating at temperatures close
to 1100°C, under the centrifugal acceleration of about (100000 g).
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
52
These remarquable proproperties of Ni-base superalloys are controlled by their specific
microstructure which consists of a cuboidal γ' phase (L12) précipited in a γ matrix (FCC solid
solution). Hence the importance of understanding the underlying mechanisms of formation and
evolution of the shape, size, and mutual arrangement of different phases.
The aim of this work is to investigate the creep behavior at 1050°C under 150MPa of <001>
oriented MC2 superalloy by means of SEM and TEM observations. The -‘ rafting process
occurs rapidly and appears to be correlated with the establishment of a pseudo-stationary creep
stage. In the rafted structure, the -‘ interfaces are not perfectly flat, they are undulated around
(001) plane. The angular deviation of the interface according to this plane can reach 50°. The
dislocation arrangement and the network stability vary with the local orientation of the -‘
interfaces. The regular and stable networks are seen in the (001) interfaces. Detailed analysis of
dislocation networks in these (001) interfaces shows that they are constituted by an association of
hexagonal and square cells of a/2 <110> dislocations. The square part is unstable and gives rise to
the systematic creation of a<001> dislocations included in the misfit dislocation network. The
role of interfacial dislocation networks in creep is analysed by taking into account the waviness of
the interface.
To study the morphological evolution of ‘ précipitate w use the phase field methode. The
phase-field approach has emerged as a method of choice for modeling morphological
transformations in materials. The phase-field method uses a set of continuous variables (fields) to
describe the material locally, It is based on a Ginzburg-Landau free energy functional obtained by
a phenomenological approach. The temporal evolution of the fields is governed by differential
equations that depend on the considered problem.
In the coherent γ-γ' phase transformation, the lattice planes are continuous across the
interfaces. Therefore the lattice mismatch between γ and γ' phases induces an elastic strain field in
the microstructure, origin of morphological transformations in the microstructure of superalloys.
Introducing the elastic energy in the phase-field model allows us to successfully reproduce
several experimental results for Ni-base superalloys. We show that elastic anisotropy and lattice
mismatch play important roles in the microstructural evolution. Special focus is given to the
effect of elastic inhomogeneity on the microstructure, with a study of diferrent combinations
between γ and γ' elastic constants, which allowed us to highlight the major influence of the shear
modulus C' on the shapes and spatial arrangements of the precipitates.
OP-5-4 Thursday, February 11, 2016, Morning from 9:30 to 9:50
A MULTI-BAND PIFA ANTENNA FOR GPS
L1/GSM1800/GSM1900/UMTS/LTE2300/Wi-Fi APPLICATIONS FOR MOBILE
PHONE Raefat Jalila El Bakouchi*
1, Ahmed Zakaria Manouare
1 and Abdelilah Ghammaz
1
1Laboratory of Electrical Systems and Telecommunications, Faculty of Sciences and
Technologies, Cadi Ayyad University, Avenue Abdelkarim Elkhattabi, Marrakesh 40000,
P.O.BOX 549, Morocco.
*Corresponding author: Jalila.elbakouchi@gmail.com
In this paper, a low-profile multi-band planar inverted-F antenna (PIFA) designed to cover the
bands of GPS L1 (1,565-1,585 GHz), GSM1800 (1710–1880 MHz), GSM1900 (1850-1990
MHz), UMTS (1920-2170 MHz), LTE2300 (2305-2400 MHz), Wi-Fi/Bluetooth (2400-2484
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
53
MHz) is presented. The antenna consists of a folded patch etched over an FR4 substrate (of 0.7
mm thickness) to maintain the small size. The antenna element has an area of 420 mm² over a
small ground plane of size 10060 mm², with a high of 5.1 mm. What making it suitable to be
fabricated at low coast and is attractive for slim smart mobile phones. The proposed antenna is
characterized with reflection S-parameter, surface current distributions, and radiation patterns.
OP-5-5 Thursday, February 11, 2016, Morning from 9:50 to 10:10
DYNAMIC ELECTRICAL CONDUCTIVITY ON THE BULK
PHOTOABSORBER SEMI CONDUCTOR Cu2SnS3
L. Essaleh
(a*), M. Belaqziz
(b), S. Lahlali
(b), A. Bourial
(b), A. Alimoussa
(a), Z. Abkhar
(c), K.
Djessas(d) and H. Chehouani(b)
aLaboratory of Condensed Matter and Nanostructures (LMCN), Cadi-Ayyad University. Faculty
of Sciences and Technology, Departement of Applied Physics, Marrakech, Morocco.
b Laboratoire Procédés, Métrologie, Matériaux pour l’Energie et Environnement (LP2M2E),
Cadi-Ayyad University, Faculty of Sciences and Techniques, Departement of Applied Physics,
Marrakech Morocco.
c Laboratoire de Chimie Bioorganique et Macromoléculaire, FSTG, Marrakech, Maroc.
d Laboratoire Procédés, Matériaux et Énergie Solaire (PROMES-CNRS), Université de
Perpignan, Rambla de la thermodynamique, Tecnosud, 66100 Perpignan Cedex, France
* Corresponding author: l.essaleh@uca.ma
Electrical conduction mechanism was investigated for the bulk ternary semiconductor compound
Cu2SnS3 that is prepared by the hydrothermal technique. The complex impedance spectroscopy
in the frequency range 100 Hz–1 MHz and temperature range 300 K–475 K is used to study the
electrical properties and analyze the contributions of the grain and grain boundaries of this
material. The activation energy for conduction mechanism is estimated from the analysis of the
temperature dependence of the DC conductivity. The AC conductivity is studied using the
following equation: 𝜎𝑎𝑐 𝜔 = 𝜎𝑑𝑐 + 𝐴𝜔𝑠[1]. The temperature dependence of the power law
exponent s suggests that AC conduction is attributed to the correlated barrier hopping (CBH)
model [2]. Activation energies for relaxation mechanisms for the grain and grain boundaries
contributions are obtained from the analysis of the temperature dependence of the relaxation
times. It is found that the relaxation activation energies are lower than those of the conduction
mechanism. Finally, Nyquist representation is considered to establish the equivalent circuit for
this material.
Keywords: Electrical Conductivity; Copper Ternary compounds; Impedance Spectroscopy.
[1] Jonscher K. London: Chelsea Dielectric Press;1983.
[2] Elliott SR, Adv Phys., 36(1987)135.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
54
PP-1
MAKING OF POLYMER/SELF-ASSEMBLED SYSTEM HYBRID MATERIALS
Said Elhasri
*Corresponding author:s.elhasri@uca.ma
We have developed the making and characterization of new molecular architectures consisting of
covalent polymers and functional fibrillar organogels [1].
As a rule, these organogels cannot be processed into materials on account of their poor
mechanical properties as their fibrillar structure is chiefly obtained at rather low concentrations.
The use of a covalent polymer matrix can be an appropriate choice for retaining the original
organogel fibrillar structure while allowing a better tractability of the system. The originality of
our approach consists in using thermoreversible gels of covalent polymers together with physical
processes for achieving the fine, mesoscopic dispersion of the organogels into the polymer
network. This is made possible because these covalent polymer gels also possess a similar
fibrillar morphology, particularly an average mesh size in the micrometer range. While these
novel molecular architectures may be relevant for applications in functional materials the primary
goal of these investigations is to establish a proof of concept.
Two systems have been considered: intermingled gels where the organogel grows within the
polymer gel with little perturbation; and “sheathed” fibrils where nanotubes encapsulate
polymer gel fibrils.
Figure 1 : Sketch of the two types of hybrid systems
The feasibility of intermingled gels has been investigated as a function of polymer, organogel
concentration and temperature, by differential scanning calorimetry (DSC), optical microscopy,
and AFM [2]. The organogel was made up from π-conjugated oligo (phenylene vinylene) (OPV)
while the polymer gel was prepared from isotactic polystyrene (iPS) or syndiotactic polystyrene
(sPS). OPV organogels change colour at the SOL-GEL transition (yellow to green).
We have observed that a mesoscopic dispersion of one gel into another could be achieved [1]
provided the mesh size of either gel is in the micrometer range (see Figure 2).
For smaller mesh size, microscopic phase separation occurs. These results were confirmed by
SAXS and SANS. Basically, we can keep the organogel concentration rather low (0.004 g/cm3),
and so retaining the optical property while increasing dramatically the elastic modulus of the
ternary gel. This process is totally reversible as the organogel can be melted and then reformed by
cooling without altering the polymer gel structure.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
55
èè
Figure 2: AFM image of an intermingled gel [1]. Organogel= large cross-section fibrils,
polymer gel= small cross-section fibrils.
The fact that the organogel structure depends highly on the end groups of the OPV molecules and
the solvent type opens up new horizons for the making of taylor-made materials [3,4].
[1] J.-M. GuenetNouveaux types de matériaux hybrides : polymère/système auto-
assembléMatériaux et Techniques 2011 98, 329
[2] D. Dasgupta, S. Srinivasan, C. Rochas, A. Ajayaghosh, J. M. Guenet Hybrid thermoreversible
gels from covalent polymers and organogels -Langmuir 2009 25 8593
[3] D. Dasgupta, S. Srinivasan, C. Rochas, A. Thierry, A. Schröder, A. Ajayaghosh, J. M. Guenet
Insight into the gelation habit of oligo(para-phenylene vinylene) derivatives : effect of end-
groupsSoft Matter, 2011, 7, 2797
[4] D. Dasgupta, S. Srinivasan, C. Rochas, A. Ajayaghosh, J.M. GuenetSolvent-mediatedfiber
growth in organogelsSoft Matter 2011, 7,9311
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
56
PP-2
ELECTRlCAL CONDUCTION BY VARIABLE RANGE HOPPING
MECHANISM AND MAGNETORESISTANCE IN THE COPPER TERNARY
CHALCOPYRITE SEMICONDUCTOR CuIn3Se5
L. Essaleh*(a)
, S. M. Wasim(b)
, G. Marín(c)
, S. Lahlali (d)
, A. Bourial(d)
, K. Djessas(e )
and H.
Chehouani (d)
a Laboratoire de Matière Condensée et Nanostructures ( L.M.C.N.),Université Cadi-Ayyad,
Faculté des Sciences et Techniques, Département de Physique, Guéliz, B. P. 549, Marrakech, b Centro de Estudios de Semiconductores, Facultad de Ciencias, Universidad de Los Andes,
Mérida 5101, Venezuela c Laboratorio de Estructura e Ingeniería de Materiales Nanoestructurados (LEIMN), Centro de
Investigación y Tecnología de Materiales (CITeMa), Instituto Venezolano de Investigaciones
Científicas (IVIC), Maracaibo 4011, Venezuela. dLaboratoire Procédés, Métrologie, Matériaux pour l’Energie et Environnement (LP2M2E), Cadi-
Ayyad University, Faculty of Sciences and Techniques, Departement of Applied Physics, Marrakech
Morocco. e Laboratoire Procédés, Matériaux et Énergie Solaire (PROMES-CNRS), Université de
Perpignan, Rambla de la thermodynamique, Tecnosud, 66100 Perpignan Cedex, France
* Corresponding author: l.essaleh@uca.ma
In this work, we present an analysis of the effect of the temperature and magnetic field on
electrical resistivity in the ordered defect compound CuIn3Se5; an important material for
photovoltaic applications [1]. A pulsed magnetic field up to 27 tesla and low temperatures up to 4
K are considered to study the behavior of the magnetoresistance in this material. We found that
variable range hopping (VRH) mechanism of Mott type [2] is identified in two temperatures
regions between 10K and 20 K, and between 34K and 65K where the electrical resistivity follows
the relation4/1)/exp( TToo . The magnetic field dependence of the magnetoresistance
agrees with the theory of Efros-Shklovskii [3] in disordered systems. However, we found some
disagreement with this theory especially at very low temperatures that needs to be investigated.
Keywords: Semiconductors; Electrical properties; Transport properties.
[1] Chaehwan Jeong, Jin Hyeok Kim, Thin Solid Films, 550 (2014) 660.
[2] N. Mott, E. A. Davies, Electron Processes in Non-Crystalline Materials, Clarendon, Oxford,
1979.
[3] B. I. Shklovskii, A. L. Efros, Electronic Properties of Doped Semiconductors, Springer,
Berlin, 1984.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
57
PP-3
THERMAL PERFORMANCE OF A PCM WALL IN BUILDING APPLICATION
Abdelouhab Labihi, Hassan Chehouani*
LP2M2E Laboratory of Processes, Metrology and Materials for Energy and Environment,
University Cadi Ayyad, FSTG, Department of Applied Physics, Marrakech, Morocco.
* Corresponding author chehouani@hotmail.fr
The use of Thermal Energy Storage (TES) by incorporation of a Phase Change Material (PCM) in
the building is currently in full expansion. PCMs have demonstrated their aptitude to keep the
temperature nearly constant by compensating heat losses or absorbing heat gains by solidification
or melting process respectively. The idea is to increase the thermal inertia of the building which
will have the effect of significantly reducing the effect of diurnal external temperatures. To
highlight the role of the PCM in the building thermal behavior, it would be simpler to consider
the case of a cavity with PCM side and examine heat transfer-mechanisms within it. To do this,
most works are interested only in the layer of PCM and use normal correlations for the heat
transfer coefficient to reflect the coupling between the PCM and the air in the enclosure.
In this work, we present a numerical and experimental study of a square enclosure with one vertical
PCM wall whereas the other one kept at ambient temperature. Initially,the PCM is melted and the
coupled flow and heat transfer are in steady state natural convection inside the closed cavity with
differentially heated vertical walls. The solidification of the PCM releases latent heat compensating
the heat loss through the cold wall. A transient, two-dimensional numerical model has been
developed to study the coupled heat transfer in the PCM and air inside the enclosure (Figure 1).
Experiments have been conducted in a cubic cavity of side 10 cm. Two opposite vertical side walls
of the cavity are in contact with respectively a 10cmx10cmx10cm PCM sheet and a kept cold
aluminum plate. The other walls of the cavity are constituted by flat polystyrene sheets sufficiently
thick to reduce heat loss. The Paraffin is used as PCM since it has the particularity to change phase
at moderate temperature and thus store a large amount of energy. The temperature profiles in
unsteadiness were measured at the centers of the cavity and PCM compartment.
The results show the effect of the PCM on the time wise variations of the gas average temperature
(Figure 2). The comparison with the case without latent heat shows that the heat retention in the
cavity has been significantly enhanced by the presence of a PCM wall. The difference between
the experience and the simulation results is explained and corrections to the numerical model are
proposed.
Figure 1: Physical Model. Figure 2: Average temperature in the cavity.
Keywords: Energy Management; Phase Change Material; Natural Convection; Solidification
Phase Front; Active Wall; Heat Storage.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
58
PP-4
DEVELOPMENT OF NEW STRUCTURES AND ALGORITHMS BASED ON
RANDOM SAMPLING FOR SOFTWARE RADIO AND COGNITIVE RADIO
SYSTEMS
H. Semlali1, A. Maali
1, N. Boumaaz
1, A. Soulmani
1,A. Ghammaz
1 and J-F. Diouris
2
1Laboratory of Electrical Systems and Telecommunications, Faculty of Sciences and
Technologies, Cadi Ayyad University, Avenue Abdelkarim Elkhattabi, Marrakesh 40000,
Morocco. 2Electronics and Telecommunications Institute of Rennes (IETR – UMR 6164), Polytechnic
School of the University of Nantes, France.
Corresponding author: hayat.semlali@gmail.com
Our contribution enter into the telecommunications framework, it is the result of a cross
between tree recent fields: Software Radio, Cognitive Radio and Random Sampling. The software
radio concept has emerged with the idea to allowing the realization of multi-mode and multi-
standard equipments. The ultimate evolutionof software radiois the cognitive radio, whose
objective is to allowthe equipmentto choosethe best conditions forcommunicationsto satisfy the
user needs. In this work, we are interested inthe application ofrandom samplinginsoftware radio
andcognitive radio architectures in order tooptimize them. The development of systems operating
with random sampling makes it possible to overcome the aliasing constraint imposed in the
uniform sampling case. Therefore, the constraintson the various elementsofthe transmission
systemwill be reduced.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
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Symposium 6: Mathematics
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
61
OP-6-1 Thursday, February 11, 2016, Morning from 10:30 to 10:50
PRESENTATION EQUIP GEOMETRY, TOPOLOGY AND APPLICATIONS
Mohamed Boucetta*
*Corresponding author: m.boucetta@uca.ma
This is a short presentation of the research entity Equip Geometry, Topology and Applications.
The equip is composed by three mathematicians: Abdelhak Abouqateb, Mohamed Boucetta and
Aziz Ikemakhen. The main topics studied by its members are differential geometry, pseudo-
Riemannian geometry, symplectic and Poisson geometry, Lie groups and Lie algebras. M.
Boucetta and A. Ikemakhen are also interested in some applications of differential geometry
namely, Computer Aided Geometric Design. The members of the equip are very involved in the
promotion of differential geometry and the formation of young mathematicians. They have
supervised three Ph.D students who graduated and three others are preparing their Ph.D grade.
The Master formation titled "Geometry, geometric design and optimization of forms" mounted by
the equip started in 2014 . It constitutes an ideal framefor giving a solid formation in differential
geometry and its applications tostudents in order to prepare them for a Ph.D grade. The equip has
organized three research schools sponsored by the international center of pureand applied
mathematics CIMPA. It has also organized many conferencesand workshops in collaboration
with mathematicians from Algeria, Tunisia,France and Spain.
OP-6-2 Thursday, February 11, 2016, Morning from 10:50 to 11:10
SHARP ESTIMATES FOR CLOSED ORBIT OF MOTZKIN SHIFTS
Mohd Salmi Md Noorani* and Fahad Alsharari
School of Mathematical Sciences, Faculty of Science & Technology, Universiti Kebangsaan
Malaysia, 43600 Bangi Selangor, Malaysia
*Corresponding author: msn@ukm.edu.my
In this talk, we provide some sharp estimates for the number of closed orbits for the class infinite
type shifts known as Motzkin shift. These estimates are obtained via elementary means and are
motivated by results in classical number theory. Some open problems are suggested at the end of
the talk.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
62
OP-6-3 Thursday, February 11, 2016, Morning from 11:10 to 11:30
TENNIS COURT MAPPING AND TRAJECTORY OPTIMIZATION FOR
ROBOTIC OBJECT RETRIEVAL
Nasharuddin Zainal*, Edgar Scavino and Eng Sheh Ling
4School of Chemical Sciences and Food Technology, Faculty of Science and Technology,
Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
*Corresponding author: nasharuddin.zainal@ukm.edu.my
This paper presents a real-time tennis ball retrieval system, using computer vision and a blind
LEGO MINDSTORMS EV3 robot. Our system tackles the tennis ball retrieval issue of lacking
ball boys, during professional or amateur matches. This system is able to identify the location of a
tennis ball in the whole tennis court, to drive a robot along a fast trajectory while avoiding
collisions with players. Semantic information on the court is captured using a webcam, which is
located randomly near the external border of the tennis court with a flexible height. The image is
then processed using a mapping algorithm to correlate pixels in the image and points on the actual
tennis court. The camera location is evaluated by comparing the lines of the tennis court in reality
and in the image. Feature extraction and computer vision techniques are used to detect the tennis
ball and the player, which are found with margins of 9cm and 45cm respectively. To optimize the
ball retrieval process, a genetic algorithm is applied to define the optimal trajectory with fulfilling
multiple objectives for the robot to travel, arrive and retrieve a tennis ball. MATLAB is used to
process the image extraction and processing, mapping algorithm, and the trajectory optimization
on the image of the tennis court.
Index Terms—Genetic Algorithm, Computer Vision, Tennis Court Mapping Algorithm,
Trajectory Optimization
OP-6-4 Thursday, February 11, 2016, Morning from 11:30 to 11:50
ASYMPTOTIC EXPANSION FOR NUMERICAL METHODS M. Kzaz*
University Cadi-Ayyad, Faculty of Sciences and Technologys, Departement of Mathematics,
B.P. 517 Marrakech, Morocco
*Corresponding author: mus.kzaz@gmail.com
in several scientific areas, the solution S of a given problem, appears as a limit of a sequence
(Sn)n; where (Sn)n represents the sequence of approximants of the solution S; by a given
numerical method.
Often, the convergence of these numerical methods is slow, making the low accuracy. To make
theses methods more accurate, we look for another sequence (Tn)n which converges to the
solution S of the problem, but better than (Sn)n in the meaning:
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
63
Often, Tn = T(Sn; Sn+1) is given as a simple convex combination of Sn; Sn+1 and the
morepopular transformations T; are the Richardson transformation, the E-algorithm and the _-
Aitken.
For more on these transformations, see [1; 7] :
To be able to .nd appropriate transformation T; we have to know or to establish an
asymptoticexpansion of the error of the used numerical method, that is to be able to write S Sn
under theform
Where the ai are not necessarily known and the (gi(n))i are known and verifie
:
Our theme is to .nd .rtsly asymptotic expansion for the error S-Sn; and then, to applyappropriate
extrapolation methods to the sequence (Sn)n: Different numerical methods were studied by
authors:quadratures formulaes (in dimension 1 or more): gaussian rules, trapezoidal rules,...
Integral equations
Equation with partiel Derivatives (Laplace equation, the wave equation,....)
Entire series and trigonometric series
For information, we established for Laplace equation in rectangular and in a disk, a
transformationwhich gives us more than 40 exact digits than the initial numerical method. (See
[2,3]). For entire series and trigonometric series, our transformation gives us more than 400 exact
digitsthan the initial method!!. See [4].
We obtain the same accuracy for multiple numerical series!!. See [5].
References
[1] C. Brezinski and M. Redivo Zaglia, Extrapolation Methods. Theory and Practice, North-
Holland,Amsterdam, 1991
[2] M. Issaoui, M. Kzaz, Asymptotic expansion for Dirichlet Laplace.s Equation, preprint
[3] M. Issaoui, M. Kzaz, Asymptotic expansion for Newmann Laplace.s Equation, preprint
[4] M. Kzaz, A highly Accurate.s Summation Formulaes For Entire and Trigonometric Series,
submitted
[5] M. Kzaz, A highly Accurate.s Summation Formulaes For Double Numerical Series, submitted
[6] W. Mclean, Asymptotic error expansions for numerical solutions of integral equations,
IMAJ.Numerical.Anal.9(1989) p.368-384
[7] A. Sidi, Pratical Extrapolation Methods: Theory and Applications, Number 10 in Cambridge
Monographs on Applied and Computational Mathematics. Cambridge University Press,
Cambridge,2003. MR1994507 (2004e:65005)2
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
64
OP-6-5 Thursday, February 11, 2016, Morning from 11:50 to 12:10
FROM ACTUARIAL SCIENCES TO MATHEMATICAL FINANCE: AN
EXAMPLE
M'hamed Eddahbi*
Cadi Ayyad University, Faculty of Sciences and Techniques, Department of Mathematics, B.P.
549, Marrakech, Morocco
*Corresponding author: m.eddahbil@uca.ma
The main goal of this talk is to show how actuarial sciences can adopt the techniques of
quantitative finance to solve some problems related to insurance premiums. We shall start with an
example of insurance claim pricing technique to cover expected loss plus the cost of running an
insurance business. If a major event occurs the insurance company would need more cash to
cover large losses. One solution to manage this risk is to use reinsurance techniques. Indeed if at
time T the total value denoted ST of all claims exceeds a certain level K, the reinsurer pays the
insurer ST — K whenever ST is larger than K, otherwise the reinsurer pays nothing. This is the
payoff_ of a call option described by max(ST — K; 0) where the risky asset corresponds to the
total claims and the strike price K corresponds to the level where the reinsurance company kicks
in. Hence, there is a need to price this payoff. At this stage one can use quantitative methods to
price this type of financial instrument.
We shall discuss some mathematical models namely the discrete time model of Cox, Ross and
Rubinstein and the classical Black-Scholes model for the continuous time setting.
PP-1
MATHEMATICAL ANALYSIS OF THE ELECTRODEPOSITION MODEL
NICKEL-IRON ALLOY ONTO A ROTATING DISKELECTRODE
NourEddine Alaa*
*Corresponding author: n.alaa@uca.ma
Laboratoire LAMAI,Faculté des Sciences et Téchnique Université Cadi Ayyad
To better understand the nickel-iron electrodeposition process, we are interested in the one-
dimensional model. This model addresses dissociation, diffusion, electromigration, convection
and deposition of multiple ion species. We study the global existence of solutions that are here
different ion concentrations in the mixture as well as the electric potential.
The non regularity of data imposes us to introduce the notion of weak solution adapted for our
model. The classic techniques, based on the C estimations, to prove the existence and the
positivity of solutions fall in defect and news techniques must be developed. We present them
here and we obtain global existence and positivity of weak solution for our model without no
restriction of growth on the nonlinear terms.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
65
PP-2
LA MOBILITE RESIDENTIELLE, LE REVENU ET DE DISTINCTION :
COMMENT LUTTER CONTRE LA SEGREGATION SOCIALE ?
Ahmed LAATABI
Doctorant - DEC Sciences de l'Ingénieur
Université Cadi Ayyad
Les êtres humains sont perpétuellement à la recherche pour améliorer leurs conditions de vie. Ils
répondent à ce besoin en général en se déplaçant d'un quartier résidentiel à l'autre, grâce à de
nombreuses raisons sociales, économiques et environnementales. Cette dynamique urbaine
contribue largement à la structuration et la réorganisation de la ville, socialement et spatialement.
Dans ce travail, nous nous intéressons à la modélisation multi-agents sous plateforme GAMA, du
phénomène de la mobilité résidentielle dans une zone géographique donnée. Grâce à des
simulations, nous étudions et analysons l'effet de deux facteurs principaux, à savoir le revenu
économique et le sens de la distinction, de l'intensité de la ségrégation sociale.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
66
Symposium 7: Polymers and polymers based
composites
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68
OP-7-1 Thursday, February 11, 2016, Afternoon from 14:00 to 14:20
BIODEGRADABLE POLYMERS BY MEAN OF METAL COMPLEXES AS
INITIATORS
Mohammed Lahcini*
Laboratoire de Chimie Organométallique et Macromoléculaire-Matériaux Composites
(LCO2MC), Faculté des Sciences et Techniques Guéliz, Université Cadi Ayyad, Av. Abdelkrim
Khattabi BP 549.Marrakech, 40000 Marrakech, Moroco.
*Corresponding author: m.lahcini@uca.ac.ma
Polylactides (PLA) have many potential medical, agricultiral, and packaging applications due to
their biocompatibility and biodegradability. The most efficient way of preparing of polylactides is
the ring-opening polymerization (ROP) of the lactide. Initiators for lactide polymerization are
typically based on alkoxide or alkanoate complexes of metals such as Al, Mg, Zn and Sn. For the
applications of plylactides in biomedicals networks, it is desirable for the polymer to be non-
toxic, biocompatible and resorbable. Tin(II) catalysts such as Sn(ethylhexanoate)2 are generally
preferred in the commercial production of polylactides for medical or pharmaceutical applications
owing to the low toxicity of Sn(II) alkoxide compared to other metal. The tin(IV)- alkoxide or -
alkynyle complexes and Bismuth(III) complexes are more reactive then Sn(II) and there
hydrolyse lead tin-oxide and Bi-oxide non toxic compound, here we reports the use of the tin(IV)-
tetraalkoxide and tetraalkynyle and Bismuth(III) complexes as catalyst for the ring-opening
polymerization of lactide.
Acknowledgements
The study has been carried out with financial support from Alexander von Humboldt Foundation
and from Hassan II Academy of Science and Technology of Morocco/CSIC "Project AH11STC-
nano 2011-2012"
OP-7-2 Thursday, February 11, 2016, Afternoon from 14:20 to 14:40
POLYURETHANES CONTAINING POLY(ETHYLENE GLYCOL),
POLY(PROPYLENE GLYCOL), POLYLACTIDE AND
POLYDIMETHYLSILOXANE SEGMENTS
Farah Hannan Anuar*, Tan Ching Haw, Siti Munirah Manap, Ain Athirah Zainuddin,
Azizan Ahmad
School of Chemical Sciences & Food Technology, Faculty of Science & Technology, Universiti
Kebangsaan Malaysia, UKM 43600, Selangor DE, Malaysia
*Corresponding author: farahhannan@ukm.edu.my
Block copolymers have attracted many researchers since the development of the first living
polymer syntheses 50 years ago. Polyurethanes are commonly one of the block copolymers.
Polyurethanes that contains poly(ethylene glycol) (PEG) and poly(propylene glycol) (PPG) are
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
69
interesting since the hydrophilic properties of PEG and PPG can enhance the degradation.
Furthermore, PEG and PPG has good biocompatibility. The great interest in
polydimethylsiloxane (PDMS) has been due to its high flexibility, high heat resistance,
biocompatibility, very low glass transition and crystallization transition temperatures and low
surface energy and solubility parameters. However, PDMS normally have low mechanical
strength at room temperature unless they are reinforced and vulcanized. Polylactide (PLA) is a
biodegradable thermoplastic polymer and it is usually produced from renewable resources. PLA,
PDMS, PEG and PPG have many applications in various fields. For example, in biological
applications, PDMS was modified with PEG to create protein and cell adsorption resistance and
they showed resistance to non-specific adsorption of several proteins and E. coli. In solid polymer
electrolyte system, a multiblock copolymer of poly(D,L-lactide)-PEG (PDLLA-PEG) was used as
the host polymer together with lithium iodide. This study describes the preparation of copolymers
containing PLA, PDMS, PEG and PPG segments and their potential applications as polymer
hosts in solid polymer electrolyte and antifouling polymers. The polymer electrolytes were
prepared using one pot method followed by solution casting.
OP-7-3 Thursday, February 11, 2016, Afternoon from 14:40 to 15:00
LIGNOCELLULOSIC MATERIALS FROM PERRENIAL PLANTS AND
COMMERCIAL FIBERS
Hind El Omari1,2,3*
, Ahmed Belfkira1, François Brouillette
2, Gilbert Lebrun
3
1Macromolecular andBiorganique Chemistry Laboratory, Faculty of Science and Technology,
University Cadi Ayyad Marrakech, Morocco 2Lignocellulosic Materials Research Center, Québec University at Trois-Rivières, Canada
3Mechanics and ecomaterialsLaboratory ,Québec University at Trois-Rivières, Canada.
*Corresponding author: hinda-3@hotmail.fr
To face the challenge of deforestation, the industrial and scientific communities have been
looking for alternate fiber sources and cleaner technologies. [1]
In the last years, the production of
pulp, paper, board, cellulose and derived products from non-ligneous material sources such as
annual or perennial plants have received more attention. [2]
Presently, in developing countries,
about 60% of cellulosic fibers come from non-ligneous plants: bagasse, straw, alfa, flax, sisal etc. [3]
Compared to wood pulps, plant fibers have a lower yield (lower than 45%) and higher fine
contents (over 50%) and an average weighed length lower than 1. Therefore, annual plant fibers
can be used with other pulps containing a less important fines fraction in order to modulate
certain properties of the sheet. [4,5]
In this study, we have evaluated the paper properties of some perennial plants commonly
found in Morocco and two commercial pulps. The paper handsheets from different fibers were
performed according to Tappi T205-95 method. Physico-chemical and mechanical properties of
different sheets were studied. Indeed, characterizations of different pulp and handsheet were
performed according to Canadian standards of paper industry. Furthermore, the dielectric
properties of paper loaded by ferroelectric ceramic nanoparticules (BaTiO3 and SrTiO3)
wereinvestigated. The addition of retention agent, cation polyacrylamide, was necessary for
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
70
particles retention in the fibrous network and improvement of dispersion of particles. Results
show that there is a strong interdependence between mechanical behavior, dielectric properties,
surface finish, porosity, percentage of fines, shape, conformability and sheet formation.Moreover,
fibers from perennial plants and commercial flax fibers were used as reinforcement for epoxy
composites. The different composites were carried out by hand lay-up method. Besides, the
tensile tests were performed according to ASTM D3039 standard method and a comparative
study between the different types of composites was developed. It was found that the mechanical
properties of the composites are governed by a good wettability to the resin and a good interfacial
adhesion fiber/resin.
References
1. Lopez F, Diaz MJ, Eugenio ME, Ariza J, Rodriguez A, Jimenez L (2003). BioresourTechnol
87: 255-261
2. Ye D, Montane D, Farriol X (2005). CarbohydrPolyer 62: 258-266
3. P. Bajpai (2012), Biotechnology for Pulp and Paper Processing, (p. 7-14). Springer Science
and Business Media, LLC
4. Sirviö J, Nurminen I (2004). Pulp Pap Can 105: 193-196
5. I'Anson SJ, Sampson WW, Sevajee CR (2007). New perspectives on the influence of
formation and grammage on sheet strength. PAPTAC Annual Meeting, Montreal, Canada
OP-7-4 Thursday, February 11, 2016, Afternoon from 15:00 to 15:20
EFFECT OF MODIFICATION ON NANOCELLULOSE AEROGEL FOR CO2
Rizafizah Othaman1,2*
, Nurul Hanisah Mohd1, Azwan Mat Lazim
1,2, Ishak Ahmad, Mohd.
1School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, 43600
UKM Bangi, Selangor, Malaysia
2Polymer Research Center, Faculty of Science and Technology, Universiti Kebangsaan Malaysia,
43600 UKM Bangi, Selangor, Malaysia
*Corresponding author: rizafizah@ukm.edu.my
Modification of nanocrystalline cellulose (NCC) for CO2 absorption is gaining much attention
recently due to its benefits have a high aspect ratio, high strength, biodegradability and high
number of hydroxyl group which offering great opportunities for modification. These high aspect
ratio particles have potential applications as rheological modifiers, reinforcing agents in
composites, coating and porous materials. The interaction of grafted NCC with 3-(2-
aminoethylamino) propyl-dimethoxymethylsilane (AEAPDMS) has been studied. Amine
functional groups are well-known have a high affinity to capture CO2 gas due to the basicity
contributed by nitrogen groups. Modification of NCC with 3-(2-aminoethylamino) propyl
dimethoxymethylsilane (AEAPDMS) was carried out in water/ethanol solvent (80/20) w/w %
with a ratio of NCC to aminosilane (1:1), (1:2), (1:3), (1:4) and (1:5). The effect of the treatment
NCC with aminosilane was characterized using Fourier Transform Infrared (FTIR) spectroscopy,
Thermogravimetric (TGA) analysis, X-ray Diffraction (XRD) spectroscopy, Elemental Analysis
while surface area and pore size was measured by Nitrogen adsorption, respectively. Capacity of
CO2 capture of all amine modified NCC were measured by Brunauer-Emmett-Teller (BET)
analyser showed the amount CO2 adsorbed increased after modification. The presence of
aminosilane was confirmed by NH2 bending around 1600 cm-1 and Si-CH3 approximately 1258
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
71
cm-1 which exist only in AEAPDMS using Fourier Transform Infrared (FTIR) spectroscopy.
Themogravimetric analysis (TGA) indicated that thermal stability of NCC increased after
aminosilane grafting. Crystallite size decreased due to interaction of aminosilane with NCC as
exhibited by XRD analysis. Elemental analysis showed the increase in amount of amine groupo
nto the adsorbent after modification.
Keywords: Nanocrystalline cellulose. Surface modification.AEAPDMS.Aminosilane
grafting.CO2 capture.
Acknowledgement
The author would like to acknowledge Uemiya Laboratory, Gifu University especially Professor
Dr. Shigeyuki Uemiya for two months attachment in the laboratory and Gifu University for the
chance given as exchange student.
References
[1] Bendahou, A., Hajlane, A., Dufresne, A., Boufi, S. & Kaddami, H. 2014. Esterification and
amidation for grafting long aliphatic chains on to cellulose nanocrystals: a comparative study.
Research on Chemical Intermediates 1-18.
[2] Eyley, S. & Thielemans, W. 2014. Surface modification of cellulose nanocrystals.
Nanoscale 6(14): 7764-7779.
[3] Wang, N., Ding, E. & Cheng, R. 2007. Surface modification of cellulose nanocrystals.
Frontiers of Chemical Engineering in China 1(3): 228-232.
[4] Yang, X. & Cranston, E. D. 2014. Chemically Cross-Linked Cellulose Nanocrystal
Aerogels with Shape Recovery and Superabsorbent Properties. Chemistry of Materials 26 (20):
6016-6025.
[5] Kalia, S., Boufi, S., Celli, A. & Kango, S. 2014. Nanofibrillated cellulose: surface
modification and potential applications. Colloid and Polymer Science 292 (1): 5-31.
[6] Salon, M.-C. B., Gerbaud, G., Abdelmouleh, M., Bruzzese, C., Boufi, S. & Belgacem, M. N.
2007. Studies of interactions between silane coupling agents and cellulose fibers with liquid and
solid-state NMR. Magnetic Resonance in Chemistry 45(6): 473-483.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
72
OP-7-5 Thursday, February 11, 2016, Afternoon from 15:20 to 15:40
ELABORATION AND CHARACTERIZATION OF NEW NANOCOMPOSITES
BASED ON CELLULOSE NANOFIBERS AND COPOLYMERS CONTAINING
FLUORINATED AND NITRILE DERIVATIVES
A. Kadimi,
a,b*, H. Kaddami
a,, M. Raihane
a, Z. Ounaies
b ,
aLaboratory of Organometallic and Macromoleculaire Chemistry- Composite Materials, Faculty
of Sciences and Technologies, Cadi ayyad University, Avenue AbdelkrimElkhattabi, Marrakech,
Morocco
bPennsylvania state University- Department of Mechanical and Nuclear Engineering 157B
Hammond Builiding . Universiy, Park, PA 16802-1412, U.S.A
*Corresponding author: amalkadimi@gmail.com
The concept of reinforced polymer materials with nanocellulose (CNC: cellulose nanocristals or
NFC: nanofibrils of cellulose) has known rapid advances and considerable interest owing to their
renewable character, high mechanical properties low density, availability and diversity of the
sources. Numerous research studies have shown that the addition of nanocellulose to a polymer
matrix leads to an enhancement in mechanical and dielectric properties. The association of
nanocellulose and a polymeric matrix enabled production of new nanocomposites with original
properties. Few papers have been published on the dielectric properties of NFC-based
nanocomposites. Recently, Ladhar et al1-4
have studied the dielectric relaxation of
nanocomposites based on nanocellulose-filled rubber and showed how the nanocellulose
characteristics influence electrical propertie of their nanocomposites.
This paper aims to study dielectric properties of new nanocomposites based on cellulose
nanofibrils (NFCs) extracted from the rachis of date palm three by TEMPO mediated oxidation
and copolymers of controlled properties containing fluorinated and nitrile derivatives. In the first
step copolymers of acrylonitrile (AN) and 2, 2, 2-Trifluoroethyl methacrylate (MATRIF) with
different proportions were synthesized by emulsion polymerization, the corresponding synthesis
yield is between 58% et 60%. The homopolymer poly (MATRIF) and poly (AN) were also
prepared to be used as reference materials, the synthesis yieldsare 60% and 68%,
respectively.These copolymers exhibit glass transition temperatures (Tg) in the range of 75–79°C.
The electrical properties of the films of these polymers were characterized over a frequency range
from 20 to 106 Hz, and in a temperature range from 20 to 120°C. The results showed that the
dielectric permittivity improve with increasing the percentage of acrylonitrile in copolymers from
0% to 75%. We observe also an improvement of dielectric breakdown (Eb), this increase can be
explain by the introduction of comonomer containing halogen into polymers that suppresses the
electron acceleration leading to an increasein Eb, but the existence of high halogen content (75%
of MATRIF) generates some kind of defects causing a decrease in dielectric breakdown5. The
second step is devoted to the preparation of Nanocomposite using copolymers fluorocyane as
matrix and NFCs as reinforcement. Differential scanning calorimetry analysis results showed no
effect on Tg for nanocompositesas compared to pure copolymers. However, the incorporation of
3wt% of NFCs improves significantly the dielectric constant compared to the pure matrix. This
increase can arise from the good interactions between NFCs and copolymers, we found that
dielectric breakdown decrease with the addition of NFCs and also with increasing the weight
percentage of NFCs.
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
73
KEYWORDS: Nanocomposites, Cellulose nanofibrils, Dielectric properties, Copolymers
cyanofluore.
Reference
A. Ladhar, M. Arous , H. Kaddami, M. Raihane, M. Lahcini, A. Kallel,M.P.F. Graca, and L.C.
Costa. J. Non-Crystalline Solids.378, 39-44 (2013).
A .Ladhar , M. Arous , H. Kaddami , M. Raihane , A. Kallel , M. P. F. Graça , L. C. Costa.
Journal of Molecular Liquid. 196, 2014, pp. 187-191.
Alaa Ladhar; Mourad Arous; Hamid Kaddami; Mustapha Raihane; Ali Kallel; Manuel Pedro
Fernando Graça; Luis Cadillon Costa. Journal of Molecular Liquids, 211, 5048, pp. 792-802.
A. Ladhar, M. Arous, H. Kaddami, M. Raihane, A. Kallel, M.P.F. Graça, L.C. Costa . Journal of
Molecular Liquids, Volume 209, September 2015, Pages 272-279.
M.Leda, M. Nagao, M.Hikita (1994) IEEE, Vol 1No. 5: 934-945
Acknowledgments: The authors thank for their financial supports the Hassan II Academy of
Science and Technology, and the International Institute for Multifunctional Materials for Energy
Conversion – IIMEC (Texas, USA).
OP-7-6 Thursday, February 11, 2016, Afternoon from 15:40 to 16:00
FLUORINATED METHACRYLATE/CLAY NANOCOMPOSITES CAOTING
PREPARED BY IN SITU RADICAL POLYMERIZATION: STRUCTURE AND
CHARACTERIZATION
M. Raihane, a)* M. Karamane, a) Y. Yagçi, b) M. Lahcini a), M. Ilsouk a) , A. Hultc)
a) Laboratory of Organometallic and Macromolecular Chemistry- Composites Materials,
Faculty of Sciences and Technologies, Cadi Ayyad University. BP 549 Marrakech (Morocco)
b) Istanbul Technical University, Faculty of Letters and Sciences, Department of Chemistry,
Maslak, TR- 34469 Istanbul (Turkey)
c) Fibre and Polymer Technology-KTH-Teknikringen56-58, SE-100 44 Stockholm, Sweden
*Corresponding author: m.raihane@uca.ma
In frame work of developing new fluorinated caoting, this study showed that nanocomposites
based on PMATRIF were successfully prepared by in situ polymerization at 70 °C using AIBN as
radical initiator in presence of a MMT modified with triphenylvinylbenzylphosphonium chloride
(Phos). Depending on the MMT-Phos loading (1, 3 or 5% by weight), nanocomposites of
partially exfoliated and intercalated structures were obtained as evidenced by X-ray diffraction.
These nanocomposites were also characterized by IR and NMR spectroscopy. The nanoscale
dispersion of MMT-Phos was also evidenced by a moderate increase of the Tg of these
nanocomposites, by about 2-8 °C compared to their virgin PMATRIF and an improvement of
their thermal stability as evidenced by TGA. The thermal stability of PMATRIF/MMT-Phos
nanocomposites also increased with MMT-Phos loading. The Surface properties of PMATRIF/x
% MMT-Phos nanocomposites were studied by contact angle measurements with water (WCA).
The incorporation of fluorinated polymers (PMATRIF) into the galleries of the organomodified
MMT-Phos increases the hydrophobicity of the Na-MMT clay and improves also the surface
properties of obtained nanocomposites, and thus the development of new coating fluorinated
nanocomposites with clay. The authors thank the CNRST (Morocco)- TÜBITAK (Turkey)
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
74
program.The authors thank the financial supports to the Swedish Research Links Programme for
the framework ―International Research Grant‖ Sweden - MENA (Middle East and North of
Africa) (Ref: VR 2008-6002) between FST (Marrakech) and KTH (Stockholm).
PP-1
A GREEN ROUTE TO MODIFY REGNERATED CELLULOSE FIBERS BY
CELLULOSE NANO-CRYSTALS. PART I: EFFECT OF TREATMENT ON
MECHANICAL PROPERTIES OF FIBERS
A. Hajlanea,b
, H. Kaddamib, R.Joffe
a
a Composite Centre Sweden, LuleåUniversity of Technology, S-97187 Luleå, Sweden
bLaboratory of Organometallic and Macromolecular Chemistry-Composite Materials, Faculty of
Sciences and Techniques, Cadi Ayyad University, Av. Abdelkrimelkhattabi B.P. 549, Marrakech,
Morocco.
*Corresponding author: ahajlane@gmail.com
This paper presents environmentally friendlier technique for deposition of cellulose nano-crystals
onto the surface of regenerated cellulose fibres using γ-methacryloxypropyltrimethoxysilane as
coupling agent. The result of this treatment is hierarchical reinforcement consisting of micro-
scale fibres and nano-scale cellulose crystal network as shown in figure 1 below. In order to
evaluate influence of treatment on fiber performance, tensile tests of fiber bundles were carried
out. The results show that there is significant impact on stiffness of fibers only by first
modification by silane whereas grafting of cellulose nano-crystals onto the surface of the fibre
allowed recovery of initial properties. Typical stress-strain curves from tensile tests of fiber
bundles (reference and after different treatments) are presented in the figure 2 below. It is
assumed that the treatment may have induced the misalignment of macromolecular chains and
crystalline cellulose phase with respect to the fibre axis. This assumption is supported by loading-
unloading test of the fibre bundle and by other results found in the literature. It is expected that
presented fiber treatment will improve fiber/matrix adhesion and increase resistance of fibers to
moisture. Consequently, obtained hierarchical reinforcement containing micro-/nano- scale
cellulose can be used to design structural bio-based composites with enhanced durability.
PP-2
EFFECT OF SURFACE MODIFICATION OF REGENERATED CELLULOSE
FIBERS ON MOISTURE ABSORPTION AND FIBER/MATRIX ADHESION
Abdelghani Hajlane a,b
, Hamid Kaddami b and Roberts Joffe
a
a Composite Centre Sweden, LuleåUniversity of Technology, S-97187 Luleå, Sweden
bLaboratory of Organometallic and Macromolecular Chemistry-Composite Materials, Faculty of
Sciences and Techniques, Cadi Ayyad University, Av. Abdelkrimelkhattabi B.P. 549, Marrakech,
Morocco.
*Corresponding author: ahajlane@gmail.com
Cellulosic fibers (flax, hemp, regenerated cellulose) possess decent mechanical properties and
they are gaining interest as an alternative to synthetic reinforcement (e.g. glass fibers). However,
their inherent polar and hydrophilic character and the sensitivity to moisture remain a challenge
and limit the use of these fibers as reinforcements for polymers. Therefore, surface modification
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
75
is a way to overcome the mentioned drawbacks of lignocellulosic fibers. This paper describes the
effect of surface modification of regenerated cellulose fibers (RCF) by chemical treatment and
deposition of cellulose nano-crystals (CNC) onto fibers. The effect of this modification on the
moisture absorption by fibers and interface properties with epoxy matrix has been studies. The
preliminary results show positive trends in reducing moisture uptake by fibers and improving
interfacial shear strength (IFSS), see Figure 1. CNC treatment at different concentrations of RCF
creates a network covering surface of fibers and interconnecting them. This resulted in rather
significant reduction of the moisture absorption compare to untreated fibers (8% vs 12%
respectively) and improving interfacial shear strength of RCF/epoxy system. The increase of the
IFSS measured from bundle pull-out test at 64% relative humidity has been observed. Thus, the
hierarchical structure created by grafting nano-crystals on micro-sized cellulose fibers resulted in
improvement of fiber/matrix adhesion by reducing water absorption.
PP-3
COMPARATIVE STUDY OF NANOCOMPOSITES MATERIALS
REINFORCED WITH DIFFERENT CELLULOSE NANOFIBRILS:
MORPHOLOGY, PHYSICAL AND INTERFACIAL PROPERTIES
K. Ben hamoua.b.c
, H Kaddamia, A Dufrsne
b, Albert Magnin
c
aLaboratory of Organometallic and Macromoleculaire Chemistry- Composite Materials, Faculty
of Sciences and Technologies, Cadi ayyad University, Avenue AbdelkrimElkhattabi, Marrakech,
Morocco bThe International School of Paper, Print Media and Biomaterials (Pagora), Grenoble Institute
of Technology, CS10065, 8402 Saint Martin d’Heres, France ́cLaboratoire Rheologie et Proce ́ de ́ s , Grenoble-INP, UJF Grenoble 1, UMR CNRS 5520, BP
53, 38041 Grenoble Cedex 9, France ́
*Corresponding author: karimabenhamou@gmail.com
Currently, numerous efforts are focused on the use of materials from renewable resources as
reinforcement agents in nanocomposites. Among such materials readily available, cellulose
nanfibrillated (CNFs) have attracted great interest due to their renewability, biodegradability, and
spectacular mechanical properties.
The effect of oxidation time on the morphology and the rmomechanical properties of polyvinyl
acetate (PVAc) reinforced with cellulose nanofibrils (CNFs) was investigated. Two CNFs,
prepared by 2, 2, 6, 6-tetramethylpiperidine-1 oxyl (TEMPO)-oxidation of cellulose, were used
and are presenting different morphologies and surface properties. The NFC-5min is more than 1
µm long and presents low surface energy and NFC-2h is 300 nm long and presents high surface
energy[1](Benhamou, et al. 2014).Nanocomposites with various weight ratios of NFCs were
fabricated by casting and vacuum-drying method using MeOH as solvent. These nanocomposite
films exhibited high optical transparency and the MEB analyses have shown that the NFCs were
dispersed homogeniously in the PVAc polymer. On the other hand the tensile strengths, elastic
moduli are improved with increasing CNFs content. It appears that the size of the fibers has a
greater influence as fiber composites having the larger size has the best mechanical properties.
Dynamic mechanical analysis showed that the storage modulus of the CNF/ PVAc films
increased significantly with CNF content above the glass-transition temperature of PVAc by the
International Joint Seminar on Science and Technology Marrakesh, 09-11 February 2016
76
formation of an interfibrillar network structure of CNFs in the PVAc matrix. However, the
thermal stability of both families of nanocomposites is lower compared to neat PVAc, based on
percolation theory, only the smaller fibers seem to accelerate slightly the decomposition process.
The outstanding and effectivepolymer reinforcement by CNFs results from their high aspect ratio,
high crystallinity, and nanodispersibility in the PVAc matrix.
[1] Benhamou, K., A. Dufresne, A. Magnin, G. Mortha, et H. Kaddami. «Control of Size and
Viscoelastic Properties of Nanofibrillated Cellulose.» Carbohydr. Polym 99 (2014): 74−83.
PP-4
IN SITU POLYCONDENSATION POLY(BUTYLENE SUCCINATE)/CLAY
BIONANOCOMPOSITES: STRUCTURE AND CHARACTERIZATION
M. Ilsouk,1 M. Raihane,
1 M. Lahcini,
1 H. Kaddami,
1 R. M. Meri,
2 J. Zicans,
2 L. B. Cimdiņa,
3
1Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials
(LCO2MC)-Cadi-Ayyad- University-Faculty of Sciences and Technologies-BP 549. 40000
Marrakech Morocco 2 Institute of Polymer Materials, Riga Technical University, Paula Valdena 3, LV-1048 Riga,
Latvia 3 Institute of General Chemical Engineering, Riga Technical University, Paula Valdena 3, LV-
1048Riga, Latvia
Silicate layered polymer nanocomposites have recently been the focus of both academic and
industrial attention. The most commonly used matrices for the elaboration of these polymer- clay
nanocomposites, we find the biodegradable polyesters that are based on renewable resources such
as poly(butylene succinate) PBS. This old polyester is one of the most promising polymers in the
family of synthetic biodegradable polyesters and can be processed in various potential
applications, but low molecular weight of PBS and lacks mechanical strength compared with
conventional plastics often limits the use of this polymer in some applications. These properties
can be improved to achieve compatibility with thermoplastic processing, manufacturing and end-
use requirements by the addition of small quantity of an environmentally nano-reinforcement.
The mineral clay (Beidellite) is abundant in Morocco and located at Taghazout near the Agadir
city. This purified clay extracted from raw mineral(or organo-modified clay) will be used as
support of the monomers being initiated the polymerization. This work aims the valuing of the
Moroccan clay as nanochage to prepare green nanocomposites with biodegradables aliphatic
polyesters (e.g. poly(butylene succinate)) by in situ polycondenastion of 1,4- Butandiol with
succinic anhydride in presence of catalyst based on Bismuth (BiCl3). The PBS/Organoclay
prepared was characterized by IR, X-ray diffraction (XDR), Scanning Electron Microscope
(SEM) and thermal properties (DSC and TGA).
Keys words: Poly(butylene Succinate), beidellite clay, in situ polycondensation, structure,
thermalproperties.
Acknowledgement: The authors thank the financial supports to Erasmus Mundus program
Technology (Morocco). and University Cadi Ayyad of Marrakech and also the Hassan II
Academy of Science and(Battuta project) financed by the European Commission between Riga
Technical University
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