Optimization Process for Biodiesel Production From Waste Cooking of Vegetable Oil by Microwave Irradiation
Optimization Process for Biodiesel Production From Waste Cooking of Vegetable Oil by Microwave Irradiation

Raheek I. Ibrahim; Ahmed H. Reja; Abeer J. Kadhim

Volume 40, Issue 1 , January 2022, , Page 49-59

https://doi.org/10.30684/etj.v40i1.1981

Abstract
  Biodiesel is the main alternative to diesel fuel today. The waste cooking vegetable oil can be used as a basic material in its preparation. Microwave irradiation is used in its production ...  Read More ...
Electromechanical Design and Manufacturing of Dynamic Buckling Test Rig Under Various Temperature Conditions
Electromechanical Design and Manufacturing of Dynamic Buckling Test Rig Under Various Temperature Conditions

Shaymaa M. Mshattat; Hussain J.M Al-Alkawi; Ahmed H. Reja

Volume 40, Issue 1 , January 2022, , Page 233-240

https://doi.org/10.30684/etj.v40i1.2276

Abstract
  A column is a structural member that bears an axial compressive load and is more likely to fail due to buckling compared to material strength. Some of these columns work at a high temperature ...  Read More ...
Enhanced Mechanical and Fatigue Properties In AA5052 Via TiO_2 Nanoparticles Addition Sintering Temperature (ST)
Enhanced Mechanical and Fatigue Properties In AA5052 Via TiO_2 Nanoparticles Addition Sintering Temperature (ST)

Zahraa J. Kadhim; Hussain J.M. Alalkawi; Ahmed H. Reja

Volume 39, Issue 9 , September 2021, , Page 1384-1391

https://doi.org/10.30684/etj.v39i9.2020

Abstract
  The goal of the present work is to study the effect of different sintering temperatures (900, 1000 and 1100 ) on fatigue and mechanical characteristics of the metal matrix AA5052 reinforced ...  Read More ...
The Influence of Convection Heat Transfers for Vertical Mini-Tubes Using Solvent Carbon Dioxide and Porous Media at Supercritical Pressure
The Influence of Convection Heat Transfers for Vertical Mini-Tubes Using Solvent Carbon Dioxide and Porous Media at Supercritical Pressure

Bilal J. Kkihlefa; Ameer A. Jaddoa; Ahmed H. Reja

Volume 39, Issue 9 , September 2021, , Page 1409-1419

https://doi.org/10.30684/etj.v39i9.2068

Abstract
  Porous media and solvent CO2 at supercritical pressure were investigated experimentally to study the effect of convection heat transfer in vertical mini-tubes. Mini-tubes diameter (5 ...  Read More ...
Investigation the Creep-Fatigue Behavior and A.C. Electrical Conductivity of AA 6061 Under Ultrasonic Peening
Investigation the Creep-Fatigue Behavior and A.C. Electrical Conductivity of AA 6061 Under Ultrasonic Peening

Hussain J. Al-Alkawi; Ahmed H. Reja; Mahmood F. Abbas

Volume 37, 11A , November 2019, , Page 453-459

https://doi.org/10.30684/etj.37.11A.1

Abstract
  Ultrasonic peening is an innovative surface improvement process used to increase the resistance of aircraft metals and enhance high cycle fatigue life. The process creates residual ...  Read More ...