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VOLUME 30 NUMBER 3 JULY, 2011

CONTENTS

1. Performance Assessment of Subsurface Drip Irrigation System using Pipes of Varying

Flexibility

Talat Farid Ahmed, Hashim Nisar Hashmi, and Abdul Razzaq Ghumman ............. .............. .............. .............. ..... 361

2. Design and Implementation of Autonomous Sonar Based Vehicle Robot

Muhammad Adil Ansari, Fahim Aziz Umrani, and Kehkashan A. Memon .............. .............. .............. .............. ... 371

3. Water Quality Assessment of Effluent Receiving Streams in Pakistan:

A Case Study of Ravi River

Naeem Ejaz, Hashim Nisar Hashmi, and Abdul Razzaq Ghumman .............. .............. .............. .............. ............... 383

4. Design Analysis of Power Extracting Unit of Onshore OWC based Wave Energy Power

Plant using Numerical Simulation

Zahid Suleman, and Hammad Bin Khaleeq ............. .............. .............. ............... .............. .............. .............. .......... 39

5. Validity of the Janssen Model for Layered Structures in a Silo

Abdul Qadir, Zubair Ahmed Memon, and Feroz Shah Syed ............ .............. .............. .............. .............. ............ 405

6. Effects of Moving Side Walls on Confined Granular Packings

Ram Chand, Zubair Ahmed Memon, and Abdul Qadir .............. ............... ............... .............. ............... ............... 411

7. The Waveshaper Effect on TA-MS Multiliner Explosively Formed Projectile with

Tantalum as Penetrator and Mild Steel as Stabilization Base

Ghulam Hussain, Abdul Qadeer Malik, and Khairuddin Sanaullah .............. ............... ............... ............... .......... 417

8. Heat Removal Under Various Wind Speeds

Rizwan Ahmed Memon, Muhammad Aslam Uqaili, and Ashfaque Ahmed Hashmani ................... ............... ....... 427

9. Study of Government Support System in SMEs: An Empirical Investigation

Hussain Bux Marri, Murlidhar Nebhwani, and Riaz Ahmed Sohag .............. .............. ............... .............. ............ 435

10. Influence of Macro Environmental Factors on Business in SMEs: An Empirical Analysis

Murlidhar Nebhwani, Hussain Bux Marri, and Riaz Ahmed Sohag .............. .............. ............... .............. ............ 447

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VOLUME 30 NUMBER 3 JULY, 2011

Published by: Publication Division,

Mehran University of Engineering & Technology, Jamshoro,Sindh, Pakistan

Phones: (+92-22) 2772274, 2772276 Fax: +92-22-2771382

Printed by: T&Q Printers

Hyderabad, Sindh, Pakistan

Mobile: 0345-3608402

11. Text-Independent Speaker Verification Based on Information Theoretic Learning

Sheeraz Memon, Tariq Jameel Saifullah Khanzada, and Sania Bhatti .............. .............. ............... .............. ......... 457

12. An Assessment of Entrepreneurs' Business Strategies towards SMEs

Murlidhar Nebhwani, Hussain Bux Marri, and Riaz Ahmed Sohag .............. .............. ............... .............. ............ 469

13. Deforestation Analysis of Riverine Forest of Sindh Using Remote Sensing Techniques

Habibullah U. Abbasi, Mushtaq Ahmed Baloch, and Abdul Ghafoor Memon .............. .............. ............... ......... 477

14. Sigma Delta Modulation Based Ternary FIR Filter Mapping on FPGA

Tayabuddin Memon, Bhawani Shankar Chowdhry, and Khalil-ur-Rahman Dayo ............... ............... .............. ... 483

15. Decentralized Hierarchical Controller Design for Selective Damping of Inter Area

Oscillations Using PMU Signals

Ashfaque Ahmed Hashmani, Mukhtiar Ahmed Mahar, and Tariq Jameel Saifullah Khanzada ................ ............ 491

16. Malignancy and Abnormality Detection of Breast Mammograms using Classifier

Ensembling

Nawazish Naveed, Muhammad Arfan Jaffar, and Faisal Karim Shaikh .............. .............. ............... .............. ....... 499

17. Quality Management in the Design and Construction Phase: A Case Study

Nafees Ahmed Memon, Qazi Muhammad Moinuddin Abro, and Farida Mugheri ............... .............. ............... .. 511

18. Dynamic Capabilities and Firm Performance: A Case of Two SMEs in Pakistan

Qazi Muhammad Moinuddin Abro, Nafees Ahmed Memon, and Pir Irfanullah Shah Rashdi................. ............. 521

19. Preliminary Study of Greywater Treatment through Rotating Biological Contactor

Ashfaque Ahmed Pathan, Rasool Bux Mahar, and Kamran Ansari .............. .............. ............... ............... ........... 531