Volume 13, Issue 1, October 2021 1. Design Analysis of a Hydraulically Powered Compression Moulding Machine for the Recycling of Plastic Waste Sadjere E.G., and Odujoko A.O, pp. 1-12 Download PDF 2. Investigation of the Physio-Mechanical Properties and Suitability of Bricks Made From Ovia River Clay for use as Refractory LiningIrogue, W. A., Orhumwunse, F.F. and Sadjere, E.G., pp. 13-25 Download PDF 3. Investigation of the Fracture Mechanism of Reinforced Polyester Composite When Subjected to Suddenly Applied Force Olodu D. D and Ihenyen O. I., pp 26-37 Download PDF 4. Fuzzy (Trapezoidal) Linear Programming Problems a Computerized SolutionEbojoh, E., Okusuwha, J.E., Irabor, J.O., Nwanbunwanne, E., pp. 38-49 Download PDF 5. Markov Chain Analysis of Employees Safety Data :A Case Study of Power Generation Company Ogbeide, O.O and Aigbe E. J., pp. 50-63 Download PDF 6. Porosity Modeling of a Niger Delta Field Ultilizing the Simple Kriging Technique and Detection of Artifial Features in Guassian Processes Mekunye, F. and Ogbeide, P. O., pp. 64-75 Download PDF 7. Effects of Drilling Fluid Additives on the Environment (A Case Study of a Xanthan gum) Otamere, B. and Igbinere, S. A., pp. 76-84 Download PDF 8. Optimization of Ar-Co2 Shielding gas Composition to Minimize Residual Stress on MIG Welded Joint Achekuogene N.S., and Osarenmwinda J.O., pp. 85-97 Download PDF 9. Static Load Capacity Assessments of Portland Cement and Metakaolin Geopolymer Prestressed Concrete Model Rail Sleepers Okovido, J. O. and Yahya, I. A, pp. 98-110 Download PDF 10. Economic Analysis of the Impact of Intelligent Well Completions in Reservoir Management Ikponmwosa U. B. and Onaiwu D. O., pp. 111-125 Download PDF Volume 13, Issue 2, December 2021 1. Structural Properties Of Metakaolin – Based Geopolymer Concrete Cured In Ambient Condition Okovido J. O. and Yahya I. A., pp. 1-10 Download PDF 2. Chemical Characterization Of Clay In Ovia Local Government Area Of Edo State, South-South Region Of Nigeria Irogue W.A, Orumwense F.F. O and Sadjere, E.G., pp. 11-17 Download PDF 3. Design Analysis Of A Modular Grass Shredding Machine Orhorhoro E. K, Atumah V. E., and Ebunilo P. O. pp. 18-30 Download PDF 4. Optimization Of Residual Stress In Mild Steel Gas Tungsten Arc Welded Joint Using Response Surface Methodology. Eboigbe C. I, and Ikponmwosa-Eweka, O. pp. 31-42 Download PDF 5. Analysis Of Well Pressure Drawdown Data Interpretation With The Pressure Derivative Adeniji, A. A. and Bello, K. O., pp. 43-56 Download PDF 6. Numerical Analysis Of Temperature Distribution In Continuous Slab Casting Mould Francis-Akilaki, T.I.; Omoregie, M. J. and Erhunmwun, I.D., pp. 57-66 Download PDF 7. Numerical Solution Of The Diffusivity Equation For Determining The Production Rate And Cumulative Production In The Infinite Acting Regime Erhunmwun, I.D., Amiolemhen, P.E. and Saliu, M.I., pp. 67-76 Download PDF 8. Design And Fabrication Of A Melon Shelling Machine With A Chaff Separation Chamber Ikpoza, E; and Ogiemwonyi, O., pp. 77-91 Download PDF