Flexural Behavior of RC Beams Strengthened by NSM-CFRP Laminates or Bars
Flexural Behavior of RC Beams Strengthened by NSM-CFRP Laminates or Bars

Ikram A. Saeed; Riadh Al-Mahaidi; Tareq S. Al-Attar; Basil S. Al-Shathr

Volume 36, 4A , April 2018, Page 358-367

https://doi.org/10.30684/etj.36.4A.1

Abstract
  The strengthening and enhancing the structures represents an important aspect in the construction industry due to the growing need to increase the tolerability of origin to a specific ...  Read More ...
Studying of Heat Treatment Influence on Mechanical Behavior of AA6061-T6 by Desirability Function Analysis Approach
Studying of Heat Treatment Influence on Mechanical Behavior of AA6061-T6 by Desirability Function Analysis Approach

Hashim S. Neamah

Volume 36, 4A , April 2018, Page 368-372

https://doi.org/10.30684/etj.36.4A.2

Abstract
  This paper presents optimization of warmth treatment parameters for the mechanical conduct on 6061 Aluminum alloy using desirability function analysis (DFA). Stability The experiments ...  Read More ...
Comparison of the Behavior for Free Standing Pile Group and Piles of Piled Raft
Comparison of the Behavior for Free Standing Pile Group and Piles of Piled Raft

Awf Al-Kaisi; Falah H. Rahil; Mohanned Waheed

Volume 36, 4A , April 2018, Page 373-380

https://doi.org/10.30684/etj.36.4A.3

Abstract
  The intended task of this paper is studying the behavior of free standing pile groups and piles of piled raft driven in clayey soil under axial loading. The raft-piles interaction is ...  Read More ...
Design and Implementation of a Two Stage Controller for Ball and Beam System Using FPGA
Design and Implementation of a Two Stage Controller for Ball and Beam System Using FPGA

Ivan A. Hashim; Ekhlas H. Karam; Noor S. Abdul-Jaleel

Volume 36, 4A , April 2018, Page 381-390

https://doi.org/10.30684/etj.36.4A.4

Abstract
  The ball and beam is, in fact, a standout amongst the essentially vital models, which are generally utilized for educating the control system because its simplicity to be built, modeled, ...  Read More ...
Earth Fault Protection Failure in the Distribution Transformer 11/0.4 kV Supply
Earth Fault Protection Failure in the Distribution Transformer 11/0.4 kV Supply

Thamir M. Abdul-Wahhab; Mohammed S. Jasim

Volume 36, 4A , April 2018, Page 391-400

https://doi.org/10.30684/etj.36.4A.5

Abstract
  This research studies a miss-coordination problem in the protection of 11 kV distribution network in Iraq. The problem arises when an underground cable is exposed to an earth fault ...  Read More ...
Using Polyethylene Glycol to Produce Self Cured Cement Mortar
Using Polyethylene Glycol to Produce Self Cured Cement Mortar

Rasha Rawdhan; Awham M. Hameed; Shakir A. Salih

Volume 36, 4A , April 2018, Page 401-409

https://doi.org/10.30684/etj.36.4A.6

Abstract
  The capacity of self-curing admixture is to reduce the evaporation of water from mortar, and subsequently they increase the ability of water retention from mortar contrasted with those ...  Read More ...
Effect of Nano Carbon Tube on the Mechanical and Physical Properties of Composites Based on Resin Route
Effect of Nano Carbon Tube on the Mechanical and Physical Properties of Composites Based on Resin Route

Aseel B. Abdul-Hussein; Emad S. AL-Hassani; Marwa S. Atallah

Volume 36, 4A , April 2018, Page 410-416

https://doi.org/10.30684/etj.36.4A.7

Abstract
  In this work, the physical and mechanical properties of nano composites are investigate. The nano composites consist of matrix was polyester resin and 3% volume fractions of glass fibers ...  Read More ...
Removal of Cr (VI) and Cu (II) Ions from Synthetic Wastewater by Solar Photocatalytic Reactor
Removal of Cr (VI) and Cu (II) Ions from Synthetic Wastewater by Solar Photocatalytic Reactor

Mohammad F. Abid; Luma H. Mahmood; Noor H. Hamza; Sukaine J. Mohamed

Volume 36, 4A , April 2018, Page 417-423

https://doi.org/10.30684/etj.36.4A.8

Abstract
  Heavy metal ions in wastewater have promoted increasing concern on environmental and health risks. The present work was devoted to investigate the feasibility of utilizing solar light ...  Read More ...
Design of Compact Dual-Mode BPFs Based on Cantor Fractal Geometry with U-Shaped Capacitive Coupling
Design of Compact Dual-Mode BPFs Based on Cantor Fractal Geometry with U-Shaped Capacitive Coupling

Seevan F. Abdulkareem

Volume 36, 4A , April 2018, Page 424-429

https://doi.org/10.30684/etj.36.4A.9

Abstract
  This study displays two microstrip bandpass filters using dual mode loop and patch resonators in form of Cantor geometry. The proposed filters exhibits one and two bands frequency responses ...  Read More ...
Numerical and Experimental Study of Cooling in Desktop Computer with Block Heat Sink
Numerical and Experimental Study of Cooling in Desktop Computer with Block Heat Sink

Jalal M. Jalil; Ekbal H. Ali; Hiba H. Kurdi

Volume 36, 4A , April 2018, Page 430-438

https://doi.org/10.30684/etj.36.4A.10

Abstract
  This paper investigates numerically and experimentally fluid flow and heat transfer inside the desktop P.C.. The study of cooling considers the components; CPU, heat sink, power supply, ...  Read More ...
Effect of DEM and Land Cover Resolutions on Simulated Runoff of Adhaim Watershed by SWAT Model
Effect of DEM and Land Cover Resolutions on Simulated Runoff of Adhaim Watershed by SWAT Model

Mahmoud Saleh Al-Khafaji; Fouad Saeed

Volume 36, 4A , April 2018, Page 439-448

https://doi.org/10.30684/etj.36.4A.11

Abstract
  Accurate estimation of surface runoff by using Soil and Water Assessment Tool (SWAT) model is highly depends on the accuracy of the Digital Elevation Model (DEM), Land Cove and Land ...  Read More ...
Strength Evaluation of Hybrid Reinforced Concrete Columns under Eccentric Loads
Strength Evaluation of Hybrid Reinforced Concrete Columns under Eccentric Loads

Ammar A. Ali; Zaynab S. Mohammed

Volume 36, 4A , April 2018, Page 449-455

https://doi.org/10.30684/etj.36.4A.12

Abstract
  This study presents an experimental investigation of the behavior of hybrid circular columns composed of outer precast reactive powder concrete (RPC) tubes filled with normal concrete ...  Read More ...
A Mathematical Model to Determination of Alum Amount Added for the Purpose of Coagulation in Water Purification Plants
A Mathematical Model to Determination of Alum Amount Added for the Purpose of Coagulation in Water Purification Plants

Hassan A. Omran; Mizher A. Kadhim

Volume 36, 4A , April 2018, Page 456-460

https://doi.org/10.30684/etj.36.4A.13

Abstract
  Chemicals are used to increase the settling velocity for suspended deposition colloids which are not settled in sedimentation tanks in water purification plants . For this purpose, ...  Read More ...
Performance Evaluation of the V–basin Tube Solar Collector by Using .Different Nanoparticles and Base Fluids
Performance Evaluation of the V–basin Tube Solar Collector by Using .Different Nanoparticles and Base Fluids

Ibtisam A. Hasan; Khaliid F. Sultan

Volume 36, 4A , April 2018, Page 461-470

https://doi.org/10.30684/etj.36.4A.14

Abstract
  This research discuss the performance and evaluation of V –basin collector in heating systems of solar with different nanofluids and base fluids, where metal nanofluids [Ag (20nm) ...  Read More ...
Study of some Mechanical Properties and Erosive Behavior by Taguchi Method for Hybrid Nano Composites
Study of some Mechanical Properties and Erosive Behavior by Taguchi Method for Hybrid Nano Composites

Reem Mohammed

Volume 36, 4A , April 2018, Page 471-479

https://doi.org/10.30684/etj.36.4A.15

Abstract
  The aim of this research is study the effect Nano TiO2 powder on impact strength, fracture toughness, hardness shore (D) and erosive wear behavior of polymer composites materials are ...  Read More ...