Table of Contents Vol. 8, No. 1 (February 2013)

1  Design and Production of Single Throw Nodular Cast Iron Crankshaft by Falalu, R. J. and Jatau J. S. ....................................................................................................1 - 12

2  Reliability and Outage Cost Assessment of 33KV Feeder in Kaduna Metropolis of Nigeria by Orichia J. Y. Jimoh B. and Mahmud D. .........................................................13 - 21

 Mobile Phone Radiation Compatibility Issues and Health Hazard by Danbatta U. G. and Abubakar Y. H. ..............................................................................................22 - 28

 Impedance Source Inverter Design for Uninterrupted Power (UPS) Application by Yusuf M. and Salawu H. ........................................................................................29 - 39

 Assessment of Customers Affordability and Willingness to Pay for Water Supply Services in Dutse Northern Nigeria by Bichi M. H. .............................................................40 - 53

 Investigation of Base Flow Contribution into Kaduna River by Ayinla A. I. Bichi M. H. and Jimoh A. A. ..................................................................................................54 - 60

7  Development and Performance Evaluation of a Hand-Pushed Weeder by Attanda M. L., Muhammad, A. I and Shema A. .......................................................................61 - 69

8  Concept s, Techniques and Constraints of Precision Agriculture: An Overview by Abubakar M. S. ...........................................................................................70 - 82

9  The Use of Palm Kernel Shell Ash as an Admixture in Cement Mortar by Amartey Y. D. Sada B. H. and Hamidu, A. M. ...........................................................................83 - 93