Analysis and Design of Beams Reinforced with Steel Fiber and Composite Plates
Analysis and Design of Beams Reinforced with Steel Fiber and Composite Plates

Mereen H. Fahmi Rasheed; Ayad Z. Saber Agha

Volume 38, 2A , February 2020, Page 113-125

https://doi.org/10.30684/etj.v38i2A.38

Abstract
  The addition of epoxy bending plate to the tension and compression faces or web is an effective technique for flexural or shear strengthening of reinforced concrete beams, also using ...  Read More ...
Computational Analysis of Punching Shear Models of Steel Fiber Reinforced Concrete Slabs
Computational Analysis of Punching Shear Models of Steel Fiber Reinforced Concrete Slabs

Mereen H. Fahmi Rasheed; Ayad Z. Saber Agha

Volume 38, 2A , February 2020, Page 126-142

https://doi.org/10.30684/etj.v38i2A.39

Abstract
  A computational analysis is presented to predict the ultimate and cracking shear strength of steel fiber reinforced concrete slabs. Different models are suggested considering the effect ...  Read More ...
Preliminary Investigation on G Cement Modified by Nano-Powder
Preliminary Investigation on G Cement Modified by Nano-Powder

Doaa M. Abdullah; Alaa A. Abdullalhameed; Farhad M. Othman

Volume 38, 2A , February 2020, Page 143-151

https://doi.org/10.30684/etj.v38i2A.93

Abstract
  A proper slurry design is critical to cementing work success. In the present investigation, a ball mill method was utilized for preparing a nano powder from a cement dust material, ...  Read More ...
Study of Mechanical Properties of Carbon Steel Plate SA-516 Gr. 70 Welded by SAW Using V-Shape Joint Design
Study of Mechanical Properties of Carbon Steel Plate SA-516 Gr. 70 Welded by SAW Using V-Shape Joint Design

Samir A. Amin; Mohannad Y. Hanna; Abdulaziz S. Khider

Volume 38, 2A , February 2020, Page 152-165

https://doi.org/10.30684/etj.v38i2A.269

Abstract
  Submerged arc welding (SAW) is a fusion type welding and it is considered one of the most important welding types due to its inherent capabilities of high welding speed, high deposition ...  Read More ...
Cost Risk Management for Variation Orders in Road Projects in Iraq
Cost Risk Management for Variation Orders in Road Projects in Iraq

Abeer J. Hassan; Raid S. Abd Ali; Hassan H. Joni

Volume 38, 2A , February 2020, Page 166-172

https://doi.org/10.30684/etj.v38i2A.292

Abstract
  This paper aims to develop appropriate solutions for each of the causes for the change orders, which help to manage the cost risk in road projects in Iraq. The literature was reviewed ...  Read More ...
The Characterization and Modeling the Mechanical Properties of High Strength Concrete (HSC) Modified with Fly Ash (FA)
The Characterization and Modeling the Mechanical Properties of High Strength Concrete (HSC) Modified with Fly Ash (FA)

Saman M. Kamal; Jalal A. Saeed; Ahmed Mohammed

Volume 38, 2A , February 2020, Page 173-184

https://doi.org/10.30684/etj.v38i2A.278

Abstract
  One of the main challenges facing Civil Engineering community is to modify cement quantity in the mix design by admixtures to enhance the mechanical properties. According to more than ...  Read More ...
Multi-Objective Optimization of Friction Stir Welding for Aluminum Alloy (2024-T3)
Multi-Objective Optimization of Friction Stir Welding for Aluminum Alloy (2024-T3)

Abbas K. Hussein; Laith K. Abbas; Ahmed A. Seger

Volume 38, 2A , February 2020, Page 185-198

https://doi.org/10.30684/etj.v38i2A.280

Abstract
  In this research, a multi-response optimization based on Taguchi method is proposed for friction stir welding (FSW) process for (2024-T3) aluminum alloy. Three different shoulder diameters ...  Read More ...
Design of Efficient Inductive Power Link with Small Size Planar Spiral Coil Receiver for Medical Applications
Design of Efficient Inductive Power Link with Small Size Planar Spiral Coil Receiver for Medical Applications

Muammer M. Omran; Ahmed S. Ezzulddin; Saad Mutashar

Volume 38, 2A , February 2020, Page 199-210

https://doi.org/10.30684/etj.v38i2A.293

Abstract
  The efficiency of a WPT system greatly depends on both the geometry and operating frequency of the transmitting and receiving structures. Genetic optimizations algorithms are presented ...  Read More ...
An Analytic Design Approach to Inverse Class-F RF Power Amplifiers
An Analytic Design Approach to Inverse Class-F RF Power Amplifiers

Firas M. Ali; Mahmuod H. Al-Muifraje; Thamir R. Saeed

Volume 38, 2A , February 2020, Page 211-225

https://doi.org/10.30684/etj.v38i2A.301

Abstract
  The design of high efficiency inverse class-F (class-F-1) radio frequency (RF) power amplifiers includes extensive measurements to characterize the RF power device by means of the empirical ...  Read More ...
Regression and Statistical Analysis of Process Parameters on Heat Affected Zone in Electrical Discharge Machining of Tool Steel
Regression and Statistical Analysis of Process Parameters on Heat Affected Zone in Electrical Discharge Machining of Tool Steel

Saad K. Shather; Shukry H. Aghdeab; Waqass S. Khudier

Volume 38, 2A , February 2020, Page 226-231

https://doi.org/10.30684/etj.v38i2A.304

Abstract
  The presented study has the aim of finding out the relationships between input variables and process parameters that describe mathematical models, also to estimate the impact of independent ...  Read More ...
Artificial Intelligent Technique for Power Management Lighting Based on FPGA
Artificial Intelligent Technique for Power Management Lighting Based on FPGA

Hanan A. R. Akkar; Sameh J. Mohammed

Volume 38, 2A , February 2020, Page 232-239

https://doi.org/10.30684/etj.v38i2A.305

Abstract
  The modern technological advances gave rise to new intelligent ways of performance and management in various fields of our lives. The employment of the artificial intelligent techniques ...  Read More ...
Extraction of Rare Earth Elements from Iraqi Phosphate Ore by Using of Tributyl Phosphate
Extraction of Rare Earth Elements from Iraqi Phosphate Ore by Using of Tributyl Phosphate

Muna K. Abbass; Moayyed G. Jalhoom; Aya M. Kadhim

Volume 38, 2A , February 2020, Page 240-245

https://doi.org/10.30684/etj.v38i2A.313

Abstract
  Iraqi phosphate ore deposits have been ascertained to be the second global reserve after Morocco, it has been utilized successfully at Al-Qaim phosphate fertilizers complex in the period ...  Read More ...
Automatic Objects Detection and Tracking Using FPCP, Blob Analysis and Kalman Filter
Automatic Objects Detection and Tracking Using FPCP, Blob Analysis and Kalman Filter

Hadeel N. Abdullah; Nuha H. Abdulghafoor

Volume 38, 2A , February 2020, Page 246-254

https://doi.org/10.30684/etj.v38i2A.314

Abstract
  Object detection and tracking are key mission in computer visibility applications, including civil or military surveillance systems. However, there are major challenges that have an ...  Read More ...
Detection of Biomedical Images by Using Bio-inspired Artificial Intelligent
Detection of Biomedical Images by Using Bio-inspired Artificial Intelligent

Hanan A. R. Akkar; Sameem A. Salman

Volume 38, 2A , February 2020, Page 255-264

https://doi.org/10.30684/etj.v38i2A.319

Abstract
  Computer vision and image processing are extremely necessary for medical pictures analysis. During this paper, a method of Bio-inspired Artificial Intelligent (AI) optimization supported ...  Read More ...
Impact of Climate Change on the Spatiotemporal Distribution of Stream Flow and Sediment Yield of Darbandikhan Watershed, Iraq
Impact of Climate Change on the Spatiotemporal Distribution of Stream Flow and Sediment Yield of Darbandikhan Watershed, Iraq

Mahmoud S. Al- Khafaji; Rana D. Al- Chalabi

Volume 38, 2A , February 2020, Page 265-276

https://doi.org/10.30684/etj.v38i2A.156

Abstract
  The impact of climate change on stream flow and sediment yield in Darbandikhan Watershed is an important challenge facing the water resources in Diyala River, Iraq. This impact was ...  Read More ...
Geometric Modeling of Compound NURBS Surfaces
Geometric Modeling of Compound NURBS Surfaces

Ali K. Alwan; Wisam K. Hamdan

Volume 38, 2A , February 2020, Page 277-287

https://doi.org/10.30684/etj.v38i2A.300

Abstract
  The design of sculptured surfaces occupies an essential area in the field of modern industrial, aerospace, and medical applications. The challenge is to design products that have complex ...  Read More ...