Research Paper
Digital Change Detection and Map Analysis for Urban Expansion and Land Cover Changes in Karbala City
Digital Change Detection and Map Analysis for Urban Expansion and Land Cover Changes in Karbala City

Noor H. Hamed; Muthanna M. Al Bayati; Haidar R. Mohammed

Volume 38, 9A , September 2020, Page 1246-1256

https://doi.org/10.30684/etj.v38i9A.296

Abstract
  Urban growth driven by uncontrolled expansion is one of the greatest problems that reduces the fertile lands in Karbala Governorate, Iraq. This phenomenon is the cause for variety of ...  Read More ...
Research Paper
Numerical and Experimental Modeling of Indoor Air Quality Inside a Conditioned Space with Mechanical Ventilation and DX-Air Conditioner
Numerical and Experimental Modeling of Indoor Air Quality Inside a Conditioned Space with Mechanical Ventilation and DX-Air Conditioner

Wisam M. Mareed; Hasanen M. Hussen

Volume 38, 9A , September 2020, Page 1257-1275

https://doi.org/10.30684/etj.v38i9A.875

Abstract
  Elevated CO2 rates in a building affect the health of the occupant. This paper deals with an experimental and numerical analysis conducted in a full-scale test room located in the Department ...  Read More ...
Research Paper
Integration of CAD/CAE/RP Environment for Developing a New Product in Medical Field
Integration of CAD/CAE/RP Environment for Developing a New Product in Medical Field

Nabeel I. Allawy; Amjad B. Abdulghafour

Volume 38, 9A , September 2020, Page 1276-1282

https://doi.org/10.30684/etj.v38i9A.982

Abstract
  Reconstruction of the mandible after severe trauma is one of the most difficult challenges facing oral and maxillofacial surgery. The mandible is an essential element in the appearance ...  Read More ...
Research Paper
Study The Effect of Machine Efficiency In Production Lines Balancing
Study The Effect of Machine Efficiency In Production Lines Balancing

Rasha J. Marzoog; Sawsan S. Al-Zubaidy; Ahmed A. Alduroobi

Volume 38, 9A , September 2020, Page 1283-1292

https://doi.org/10.30684/etj.v38i9A.1088

Abstract
  Production Line Balancing (PLB) is the technique of assigning the operations to workstations in such a way that the assignment minimizes the idle time between workstations. PLB aims ...  Read More ...
Research Paper
Nonlinear Finite Element Analysis of High Strength Fiber Reinforced Concrete Beams
Nonlinear Finite Element Analysis of High Strength Fiber Reinforced Concrete Beams

Zinah A. Abdul Hussein

Volume 38, 9A , September 2020, Page 1293-1304

https://doi.org/10.30684/etj.v38i9A.1840

Abstract
  This research work presents a nonlinear finite element investigation on the behavior of high strength fiber reinforced concrete beams. This investigation is carried out in order to ...  Read More ...
Research Paper
Effect of Polyvinyl Pyrrolidone on Polyvinyl Chloride-Graft-Acrylamide Membranes
Effect of Polyvinyl Pyrrolidone on Polyvinyl Chloride-Graft-Acrylamide Membranes

Maha J. Al-Bahate; Kadhum M. Shabeeb; Bassam I. Khalil

Volume 38, 9A , September 2020, Page 1205-1315

https://doi.org/10.30684/etj.v38i9A.1319

Abstract
  Polyvinyl-chloride (PVC) was dehydrochlorinated by alkaline-solution (NaOH) in determining molarity (3.0 M) followed by grafting with acrylamide (AM) monomer onto dehydrochlorinated ...  Read More ...
Research Paper
Numerical and Experimental Explorations for the Formability of Drawing Square Cups Through Deep Drawing Operation (January 2020)
Numerical and Experimental Explorations for the Formability of Drawing Square Cups Through Deep Drawing Operation (January 2020)

Nareen H. Obaeed

Volume 38, 9A , September 2020, Page 1316-1326

https://doi.org/10.30684/etj.v38i9A.1340

Abstract
  This study aims to examine the formability of drawing cups having square shapes through direct deep drawing process on a single action press through one pass. This can be accomplished ...  Read More ...
Research Paper
Improved Y-Source Single-Stage Transformerless Micro-Inverter for PV Residential Applications
Improved Y-Source Single-Stage Transformerless Micro-Inverter for PV Residential Applications

Firas F. Salih; Oday A. Ahmed

Volume 38, 9A , September 2020, Page 1327-1341

https://doi.org/10.30684/etj.v38i9A.1143

Abstract
  Y-Source Impedance Network (YSN) is one of the most suitable for providing high voltage gain. It generatesa high voltage gain by using a small shoot-through duty cycle, which makes ...  Read More ...
Research Paper
Optimal Model Reference Control Scheme Design for Nonlinear Strict-Feedback Systems
Optimal Model Reference Control Scheme Design for Nonlinear Strict-Feedback Systems

Musadaq A. Hadi; Hazem I. Ali

Volume 38, 9A , September 2020, Page 1342-1351

https://doi.org/10.30684/etj.v38i9A.1339

Abstract
  In this paper, a new design of the model reference control scheme is proposed in a class of nonlinear strict-feedback system. First, the system is analyzed using Lyapunov stability ...  Read More ...
Research Paper
Enhancement of EDM Performance by Using Copper-Silver Composite Electrode
Enhancement of EDM Performance by Using Copper-Silver Composite Electrode

Saad K. Shather; Abbas F. Ibrahim; Zainab H. Mohsein; Omar H. Hassoon

Volume 38, 9A , September 2020, Page 1352-1358

https://doi.org/10.30684/etj.v38i9A.1549

Abstract
  Discharge Machining is a non-traditional machining technique and usually applied for hard metals and complex shapes that difficult to machining in the traditional cutting process. This ...  Read More ...
Research Paper
Absorption of Carbon Dioxide into Aqueous Ammonia Solution using Blended Promoters (MEA, MEA+PZ, PZ+ArgK, MEA+ArgK)
Absorption of Carbon Dioxide into Aqueous Ammonia Solution using Blended Promoters (MEA, MEA+PZ, PZ+ArgK, MEA+ArgK)

Farah T. Al-Sudani

Volume 38, 9A , September 2020, Page 1359-1372

https://doi.org/10.30684/etj.v38i9A.876

Abstract
  Absorption of CO2 into promoted-NH3 solution utilize a packed column (1.25 m long, 0.05m inside diameter) was examined in the present work. The process performance of four different ...  Read More ...
Research Paper
Study of The Influence of Different Variables on Clathrate Practical Applications in Phenol Removal
Study of The Influence of Different Variables on Clathrate Practical Applications in Phenol Removal

Riyadh S. AL- Mukhtar; Shurooq T. Remedhan; Marwa N. Hussin

Volume 38, 9A , September 2020, Page 1373-1383

https://doi.org/10.30684/etj.v38i9A.1123

Abstract
  In this work, effluent wastewater treated by using cyclopentane-water Clathrate system to treat water contaminates with phenols at concentrations (300, 250, 200, 150, 100 and 50) ppm ...  Read More ...
Research Paper
Path Planning of Mobile Robot Using Improved Artificial Bee Colony Algorithm
Path Planning of Mobile Robot Using Improved Artificial Bee Colony Algorithm

Rkaa T. Kamil; Mohamed J. Mohamed; Bashra K. Oleiwi

Volume 38, 9A , September 2020, Page 1384-1395

https://doi.org/10.30684/etj.v38i9A.1100

Abstract
  A modified version of the artificial Bee Colony Algorithm (ABC) was suggested namely Adaptive Dimension Limit- Artificial Bee Colony Algorithm (ADL-ABC). To determine the optimum global ...  Read More ...
Research Paper
The Formability and Elongation of Aluminum Alloys AA5083 and AA3003 for Micro-Truss Sandwiches Manufacturing
The Formability and Elongation of Aluminum Alloys AA5083 and AA3003 for Micro-Truss Sandwiches Manufacturing

Arwa F. Tawfeeq; Matthew R. Barnett

Volume 38, 9A , September 2020, Page 1396-1405

https://doi.org/10.30684/etj.v38i9A.556

Abstract
  The development in the manufacturing of micro-truss structures has demonstrated the effectiveness of brazing for assembling these sandwiches, which opens new opportunities for cost-effective ...  Read More ...
Research Paper
Effect of SiC-Cu Electrode on Material Removal Rate, Tool Wear and Surface Roughness in EDM Process
Effect of SiC-Cu Electrode on Material Removal Rate, Tool Wear and Surface Roughness in EDM Process

Yousif Q. Laibi; Saad K. Shather

Volume 38, 9A , September 2020, Page 1406-1413

https://doi.org/10.30684/etj.v38i9A.552

Abstract
  Electrical discharge machining (EDM) is one of the most common non-traditional processes for the manufacture of high precision parts and complex shapes. The EDM process depends on the ...  Read More ...