Membrane Bioreactor with External Side-Stream Membranes and High Cross Flow Velocity to Treat Municipal Wastewater
Membrane Bioreactor with External Side-Stream Membranes and High Cross Flow Velocity to Treat Municipal Wastewater

Majid A. Dixon; Talib R. Abbas; Mustafa H. Al-Furaiji; Raed H. Abed-Ali

Volume 38, 1A , January 2020, Page 1-8

https://doi.org/10.30684/etj.v38i1A.86

Abstract
  In this work, a pilot unit using side-stream MBR configuration was operated in BioFlow mode (i.e. no back pulse) and BioPulse mode (with intermittent back pulses) to treat municipal ...  Read More ...
2D Model to Investigate the Morphological and Hydraulic Changes of Meanders
2D Model to Investigate the Morphological and Hydraulic Changes of Meanders

Jaafar S. Maatooq; Luay K. Hameed

Volume 38, 1A , January 2020, Page 9-19

https://doi.org/10.30684/etj.v38i1A.95

Abstract
  River engineering investigations require some level of hydrodynamic and morphologic analysis. The detailed of the hydraulic and morphologic features through meander evolution can be ...  Read More ...
Experimental Investigation on Electrochemical Grinding (ECG) for Stainless Steel 316
Experimental Investigation on Electrochemical Grinding (ECG) for Stainless Steel 316

Abdullah J. Ghadban; Abbas F. Ibrahim

Volume 38, 1A , January 2020, Page 20-25

https://doi.org/10.30684/etj.v38i1A.176

Abstract
  This research focuses on material removal rate (MRR) and surface roughness during electrochemical grinding (ECG) for stainless steel 316. The effect of applied current, electrolyte ...  Read More ...
Redrawing Operation a Star Shape from Cylindrical Shape Using Experimental and FE Analysis
Redrawing Operation a Star Shape from Cylindrical Shape Using Experimental and FE Analysis

Waleed Kh. Jawad; Ali T. Ikal

Volume 38, 1A , January 2020, Page 26-33

https://doi.org/10.30684/etj.v38i1A.191

Abstract
  The aim of this paper is to design and fabricate a star die and a cylindrical die to produce a star shape by redrawing the cylindrical shape and comparing it to the conventional method ...  Read More ...
The Effects of Anodizing Process on the Corrosion rate and Fatigue Life of Aluminum Alloy 7075-T73
The Effects of Anodizing Process on the Corrosion rate and Fatigue Life of Aluminum Alloy 7075-T73

Ibrahim M. AL-Sudani; Samir A. Al-Rabii; Dhafir S. Al-Fattal

Volume 38, 1A , January 2020, Page 34-42

https://doi.org/10.30684/etj.v38i1A.1594

Abstract
  This research aims to study the effect of using the anodizing process on the corrosion rate, mechanical properties as well as the fatigue life for aluminum alloy (7075-T73), which is ...  Read More ...
Numerical Study of Effect of Using Nanofluids Flowing in Simply Supported Pipes on Vibrations Characteristics
Numerical Study of Effect of Using Nanofluids Flowing in Simply Supported Pipes on Vibrations Characteristics

Kadhum A. Jehhef; Mohamed A. Siba; Hayder S. Abdulamir

Volume 38, 1A , January 2020, Page 43-56

https://doi.org/10.30684/etj.v38i1A.1595

Abstract
  In general, internal vibrations within the pipelines caused by fluids being passing through a pipeline system can cause. These pipeline system can damage by the sudden amplified vibrations ...  Read More ...
Processing and Properties of ZA-27 Alloy Metal Matrix Hybrid Composite Reinforced with Nanonitrides
Processing and Properties of ZA-27 Alloy Metal Matrix Hybrid Composite Reinforced with Nanonitrides

Fadhil A. Hashim; Niveen J. Abdulkader; Kateralnada F. Hisham

Volume 38, 1A , January 2020, Page 57-64

https://doi.org/10.30684/etj.v38i1A.1597

Abstract
  In general, internal vibrations within the pipelines caused by fluids being passing through a pipeline system can cause. These pipeline system can damage by the sudden amplified vibrations ...  Read More ...
Identification and Management of Major Risk Factors in Construction of Healthcare Centers Projects
Identification and Management of Major Risk Factors in Construction of Healthcare Centers Projects

Khalil I. Wali; Mahmood M. Mahdi

Volume 38, 1A , January 2020, Page 65-73

https://doi.org/10.30684/etj.v38i1A.1599

Abstract
  More attention is needed for healthcare centers projects and its development to change and improve the health situation in Iraq. The study of risk in this type of projects is essential ...  Read More ...
Utilizing Artificial Intelligence to Collect Pavement Surface Condition Data
Utilizing Artificial Intelligence to Collect Pavement Surface Condition Data

Hasan H. Joni; Imzahim A. Alwan; Ghazwan A. Naji

Volume 38, 1A , January 2020, Page 74-82

https://doi.org/10.30684/etj.v38i1A.251

Abstract
  Nowadays, data collection mechanisms are developed from ancient methods, including visual surveying to modern methods, which rely on digital imaging devices and laser scanning. This ...  Read More ...
Improvement of Image Steganography Using Discrete Wavelet Transform
Improvement of Image Steganography Using Discrete Wavelet Transform

Manal K. Oudah; Aqeela N. Abed; Rula S. Khudhair; Saad M. Kaleefah

Volume 38, 1A , January 2020, Page 83-87

https://doi.org/10.30684/etj.v38i1A.266

Abstract
  Recently the Discrete-Wavelet-Transform (DWT) has been represented as signal processing powerful tool to separate the signal into its band frequency components. In this paper, improvement ...  Read More ...
Experimental and Numerical Simulation for Thermal Investigation of Oscillating Heat Pipe Using VOF Model
Experimental and Numerical Simulation for Thermal Investigation of Oscillating Heat Pipe Using VOF Model

Anwar S. Barrak; Ahmed A. M. Saleh; Zained H. Naji

Volume 38, 1A , January 2020, Page 88-104

https://doi.org/10.30684/etj.v38i1A.286

Abstract
  This study is investigated the thermal performance of seven turns of the oscillating heat pipe (OHP) by an experimental investigation and CFD simulation. The OHP is designed and made ...  Read More ...
Review Paper
An Elaborate Review for Micro-Fin Heat Sink
An Elaborate Review for Micro-Fin Heat Sink

Ibtisam A. Hasan; Sahar R. Fafraj; Israa A. Mohmma

Volume 38, 1A , January 2020, Page 105-112

https://doi.org/10.30684/etj.v38i1A.331

Abstract
  Heat sinks are low cost, the process of manufacturing reliability, and design simplicity which leads to taking into consideration various cutting-edge applications for heat transfer. ...  Read More ...