Table of Contents

Effect of Radiation on Electromagnetic Waves

Hayatu, Abba Ibrahim, Nura Yakubu and Abba Babakura                                                     1 – 13   

Use of Geographic Information System (GIS) As a Tool for Process Reengineering in Delivering Road Construction Projects in Nigeria

Kabiru, Rogo Usman                                                                                                               14 – 49                       

Performance Evaluation of Charcoal Samples from Different Wood Species in Ibadan, Nigeria

Adepo S. Olusegun and Ijagbemi Christiana .O.                                                                      50 – 56

The pH Level and Alkaline Phosphate Activity in Crude Oil Contaminated Soil Bioremediated with Poultry Manure and Sawdust

Peters Akpoturi                                                                                                                        57– 61            

EPR Studies of the Hamiltonian Parameters of the Simultaneous Axial and Orthorhombic Jahn-Teller Spectra of Cu²⁺ in Cd₂(NH₄)₂(SO₄)₃ Single Crystals at Different Temperatures

J.B Yerima, A.B Dikko and D.K De                                                                                           62 – 71

Modification and Evaluation of a Pedal Driven Seed Drill

F. B. Akande, O. E. Ajiki, O. Adekoya and K.O. Oriola                                                              72 – 79

Managing Risk in Engineering Projects

Ashiru, M. Ashiru and Jacob, E. Sanni                                                                                      80 – 90

Transesterification of Hura crepitans Oil for Biodiesel Production

O.O. Oniya^*, F.B. Akande,A.A. Adedeji and O.L. Olukayode                                                    91 – 97