Engineering and Technology Journal

Using Microbial Desalination Cell to Treat Iraqi Wastewater

Talib R. Abbas; Majid A. Dixon; Mustafa Hussein Al-Furaiji

Volume 37, 7A , July 2019, , Page 227-234

https://doi.org/10.30684/etj.37.7A.2

Abstract

A Three-chambers MDC was made using three identical cubicalplexi-glass sections. Each chamber has an effective volume of 35 cm3. An anionexchange membrane (AEM) was used to separate ... Read More ...

Investigation of External and Internal Inversion for Aluminum Tube with Various Die Parameters Effect

Basim M. Fadhil; Ava Ali Kamal

Volume 37, 7A , July 2019, , Page 235-240

https://doi.org/10.30684/etj.37.7A.3

Abstract

Finite element modeling has been conducted to investigate theeffect of die radius fillet, tube wall thickness, and friction coefficient on bothexternal and internal inversion forthealuminum ... Read More ...

Enhanced Solution of Inverse Kinematics for Redundant Robot Manipulator Using PSO

Hind Z. Khaleel

Volume 37, 7A , July 2019, , Page 241-247

https://doi.org/10.30684/etj.37.7A.4

Abstract

Kinematics of the robot is divided into two parts: the forwardkinematics, which evaluates the end-effector’s position from joint angles, and theinverse kinematics, which demonstrates ... Read More ... Kinematics of the robot is divided into two parts: the forwardkinematics, which evaluates the end-effector’s position from joint angles, and theinverse kinematics, which demonstrates the joint angles from the end-effector'sposition. The solution of the inverse kinematics problem is too difficult andcomplicated for the redundant robot arm manipulator. A Particle SwarmOptimization (PSO) algorithm is an effective method to solve global optimizationproblems. This paper presents the solution of inverse kinematics problem of athree-link redundant manipulator robot arm using PSO without using the inversekinematics equations. The circle, square and triangle generated trajectories usingPSO are enhanced as compared with the trajectories of other works. Theenhanced PSO algorithm is successfully found the best generating three jointangles and the best generating end-effector's position of a three-link robot arm.Then according to these joints and positions the circle, square and triangle pathtrajectories, results are smoother than the path trajectories of other work. Thisenhanced solution of inverse kinematics using PSO algorithm is too fast due tothe short elapsed time in every iteration of trajectory. Besides that, thesevelocities results have been given evaluated and give an indication that the threelink robot is moving fast during the PSO algorithm. The elapsed time of circletrajectory equals to 20.903981 seconds, the elapsed time of square trajectoryequals to 11.747171 seconds and the elapsed time of triangle trajectory equals to15.729663 seconds. MATLAB R2015b program is used in order to simulate allresults. The main benefit of this work is to solve two problems: 1) inversekinematics is too complex equations of the three-link robot. The solutions of bestjoint angles using PSO are computed within joint limits without using inversekinematics equations. 2) Another problem, this work is enhanced threetrajectories with respect to the best joint angles and reaches 96% percent ascompared with another work. The error is too small according to the start andgoal PSO generated points for each trajectory.

Torsional Behavior of Solid and Hollow Core Self Compacting Concrete Beams Reinforced with Steel Fibers

Tareq S. Al-Attar; Sarmad S. Abdul Qader; Hind A. Hussain

Volume 37, 7A , July 2019, , Page 248-255

https://doi.org/10.30684/etj.37.7A.5

Abstract

Torsion of structural members and the behavior of steel fiber self- compacting reinforced concrete became the area of interest for many researchers nowadays. The experimental program ... Read More ...

Assessing Water Quality for Al-Diwaniyah River, Iraq Using GIS Technique

Khalid M. Hussein; Sataa A.F. Al-Bayati; Salih A.A. Al-Bakri A.A. Al-Bakri

Volume 37, 7A , July 2019, , Page 256-264

https://doi.org/10.30684/etj.37.7A.6

Abstract

In this study, Al-Diwaniyah River within Al-Diwaniyah Governorate was monitored for a set of chemical, physical,and bacteriological parameters for ... Read More ... In this study, Al-Diwaniyah River within Al-Diwaniyah Governorate was monitored for a set of chemical, physical,and bacteriological parameters for the assessment of water quality during January to July 2018. Water quality maps for this river were plotted torepresent the change in each parameter during the study period using GIS program. Three sampling stations along the river and eighteen parameters were selected: air temperature, water temperature, turbidity, pH value, electrical conductivity (EC), biochemical oxygen demand (BOD), dissolved oxygen (DO), alkalinity, chloride, Sulfate, total suspended solids (TSS), total dissolved solids (TDS), calcium, magnesium, total hardness, lead, total coliform,and Escherichia coli bacteria. The results explained that the water temperature varied between (15-31) °C. pH values ranged between (7.4-8.2) and river water was considered as slightly alkaline with alkalinity concentrations between (124-176) mg/L. Most waterof the river was very hard according to the values of hardness that varied between (384-531) mg/L. The turbidity values of the river ranged between (1.5-35.2) NTU.Electrical conductivity was between (998-1380) μs/cm. Total dissolved solids and total suspended solids were their values varied between (620-932)mg/L and (2-28) mg/L respectively. It was found that among measured positive ions, calcium concentrations were higher than the magnesium concentrations, ranging between (71-175) mg/L and (21-67) mg/L respectively. On the other hand, when studying Anions, sulfate concentrations were higher than chloride concentrations with values ranging from (152-339) mg/L and (101-167) mg/L respectively. River water contained dissolved oxygen concentrations ranging (6.3-10.1) mg/L while concentrations of biochemical oxygen demand varied between (0.6-7.6) mg/L. Lead ranged in valuesbetween (0.001-0.017) mg/L. The study found that bacteriological parameters, including total coliform and E. coli, ranged between (500-1600) MPN/100ml and (30-1600) MPN/100ml respectively. In general, the parameters of Turbidity, SO4, BOD5, TC and E. coli have exceeded Iraqi standards for drinking water IQS: 417 while the rest of the parameters were within these limits. It revealed that station 2 which was located only at ashort distance from the site of the wastewater treatment plant was more polluted than the other two stations. The results showed that the water of the river is neithersuitable for drinking, nor suitable for swimming according to the high bacterial pollution in addition to the danger and threat to aquatic life but can be used for irrigation purposes.

Zoning Areas Susceptible to Land Subsidence in Tigris and Euphrates Basins

Ali Darvishi Boloorani; Masoud Soleimani; Ramin Papi; Seyed Kazem Alavipanah; Ayad M. Fadhil Al-Quraishi

Volume 37, 7A , July 2019, , Page 265-272

https://doi.org/10.30684/etj.37.7A.7

Abstract

Land Subsidence is considered as one of the riskiest hazards in nature and geology. It may be caused by human activities including but not limited to long-term depletion of water, petroleum, ... Read More ...

Study the Behavior of High Performance Concrete Circular Short Columns Confined by CFRP

Asmaa A. Ahmed; Shatha S. Hasan; Ali J. Khalaf

Volume 37, 7A , July 2019, , Page 273-281

https://doi.org/10.30684/etj.37.7A.8

Abstract

This paper presents the results of experimental study on reinforced concrete columns rehabilitation with carbon fiber reinforced polymer (CFRP) under concentrated load. Twelve short ... Read More ...

Gait Analysis Before and After Total Knee Replacement

Sadiq J. Hamandi; Safa’a D. Al-Hussainy; Summer M. Sabeeh

Volume 37, 7A , July 2019, , Page 282-289

https://doi.org/10.30684/etj.37.7A.9

Abstract

Total knee replacement is a surgical procedure for treatment of knee Osteoarthritis, Rheumatoid arthritis and posttraumatic arthritis. The main goals of TKR are relieve the pain, restore ... Read More ...

A Cooperation of Fog Computing and Smart Gateways in a Secure and Efficient Architecture for IoT-Based Smart Homes

Amin H. Seno; Sahar A. Alshammari

Volume 37, 7A , July 2019, , Page 290-301

https://doi.org/10.30684/etj.37.7A.10

Abstract

Nowadays Internet of Things (IoT) is growing to be a serious factor in numerous areas of our daily life style. Internet of Things brings different opportunities of intelligence to important ... Read More ...

Study on Removal of Vanadium from Iraqi Crude Oil by Prepared Nanozeolites

Amin D. Tamer; Faras Q. Mohammed; Luma H. Mahmood; Marwan Hussein; Mahdie M. Hanyn

Volume 37, 6A , June 2019, , Page 188-194

https://doi.org/10.30684/etj.37.6A.1

Abstract

The present study has been conducted to investigate the removal of vanadium from Iraqi crude oil by prepared zeolite nanoparticles. Ball milling was used as a top-down approach to synthesize ... Read More ...

Hydrogeologic Sustainability and Mitigation of Shallow Groundwater against High Saline and Chemical Pollutants

Najah M.L. Al Maimuri; Arkan R. Ali; Abdulhadi M. Al-Sa’adi; Mohammed K. Abed

Volume 37, 3C , June 2019, , Page 303-310

https://doi.org/10.30684/etj.37.3C.1

Abstract

A hydrogeologic study has been adopted to conceptualize the concepts of groundwater levels lowering in swamped area of Tyass, middle of Iraq. 2D dimensional groundwater model and, mitigation ... Read More ...

Improving the Properties of Main Drainage Water by Using of Magnetic Field Technique

Olla H. Kareem; Abdul Hameed M.J. Al-Obaidy; Riyad H. Al-Anbari

Volume 37, 6A , June 2019, , Page 195-200

https://doi.org/10.30684/etj.37.6A.2

Abstract

In this research, main drainage channel treated by using a magnetic field with a density of (6000 Guesses). The general drain water samples flowed through the magnetic field with three ... Read More ...

Recycling of Sewage Sludge Ash in Polymer Structures

Mohamad Alsaadi; Aseel B. Al-Zubaidi; Mukhallad Haider; Hasanain Hashim

Volume 37, 3C , June 2019, , Page 311-318

https://doi.org/10.30684/etj.37.3C.2

Abstract

In this study sewage sludge ash (SSA) particles were used as filler in the polyester resin to fabricate particulate composites with various filler contents of 0, 1, 2, 3, 4, 5, 6 and ... Read More ...

Modification of Prepared (Al 2024/Alumina/Mn) Composite by Laser Surface SiC Clad Layer

Marwa H. Juber; Amer H. Majeed; Mohammed S. Hamza; Thair A. Tawfiq

Volume 37, 6A , June 2019, , Page 201-206

https://doi.org/10.30684/etj.37.6A.3

Abstract

The present work shows the cladding process of silicon carbide on the substrate of prepared composite (Al 2024/Alumina/Mn) by using a laser beam (pulsed Nd-YAG). To obtain the desired ... Read More ...

Removal Performance Assessment of Dyes in Solution Using Mesoporous MCM-41 Prepared from Iraqi Rice Husk

Najat Saleh; Anaam A. Sabri; Ban S. Abdul Hussein

Volume 37, 6A , June 2019, , Page 207-213

https://doi.org/10.30684/etj.37.6A.4

Abstract

In this study, mesoporous silica MCM-41 material was synthesized using Iraqi rice husk for the first time, as silica precursor and Cetyltrimethylammonium bromide (CTAB) as a template. ... Read More ...

Physical and Chemical Characteristics Comparison of the Drinking Water and Water Produced from the Conventional and Modification Solar Water Distillery

Hussein H. Mohammed Ali; Sabah T. Ahmed

Volume 37, 6A , June 2019, , Page 214-221

https://doi.org/10.30684/etj.37.6A.5

Abstract

A comparison of the physical and chemical characteristics of water samples produced from the conventional and modification solar water distilleries, and water samples of networks from ... Read More ...

Behavior of Recycled Aggregate Fibrous Reinforced Beams Under Flexural and Shear Loading

Eyad K. Sayhood; Ali Sadiq Resheq; Farah L. Raoof

Volume 37, 3C , June 2019, , Page 338-344

https://doi.org/10.30684/etj.37.3C.6

Abstract

The use of recycled concrete aggregates (RCA) to replace part or all of the natural coarse aggregates (NCA) in the production of concrete has been on the increase. Such use helps in ... Read More ...

DNA Fingerprints of Two Tilapia Fish Species of Euphrates River at Governorate ofAl-Muthanna Using RAPD Markers

Taha Al-Khafaji; Mustafa S.F. Ziyadi; Marwa K. Musad

Volume 37, 3C , June 2019, , Page 345-349

https://doi.org/10.30684/etj.37.3C.7

Abstract

During the last decade, tilapia species (Cichlidae: Teleostei) becamemembers of Iraqi fish fauna. They characterized with morphological similarity amonggenera and species. That makes ... Read More ...

Heavy Metals Accumulation in Two Types of Tree Leaves from Baghdad Urban Areas

Maha A. Mahmood; Athmar A.M. AL-Mashhady; Ali N. Ali

Volume 37, 3C , June 2019, , Page 350-355

https://doi.org/10.30684/etj.37.3C.8

Abstract

It is well known that environmental pollution by many heavymetals is a serious problem to the natural ecosystem due to their toxiceffects. Most heavy metals such as Cu, Mn, Fe, and ... Read More ...

Seasonal Variations of Air Pollutants Concentrations within Baghdad City

Layla L. Alwan; Sedik A.K. Al-Hiyaly; Ayat H. Mahdi

Volume 37, 3C , June 2019, , Page 356-364

https://doi.org/10.30684/etj.37.3C.9

Abstract

Air pollution is increased significantly nowadays due to variousindustrial activities and car combustion emissions. In this work, data have beencollected from Al-Jadrya Monitoring Station ... Read More ...

Phytoremediation of Heavy Metals(Cd, Cu, Fe, and Pb) by Using Aquatic Plants in Shatt Al-Arab River

Taha Y. Al-Edani; Hayfaa J. Al-Tameemi; Zainab F. Jasim

Volume 37, 3C , June 2019, , Page 365-369

https://doi.org/10.30684/etj.37.3C.10

Abstract

The study conducted to evaluate the ability of some aquatic plants in absorption and accumulate some heavy metals (Cd, Cu, Fe, and Pb) in their tissues from contaminated water in two ... Read More ...

Rubber Pad Sheet Metal Forming of Round Metal Blanks into Multi Shape Axisymmetric Cups by FEA and Experimental Methods

Karem M. Younis; Adnan I. Mohammed; Jalil Shukur

Volume 37, 3C , June 2019, , Page 370-376

https://doi.org/10.30684/etj.37.3C.11

Abstract

Rubber-pad forming process of round sheet blanks into axisymmetric cups is studied by numerical and experimental approaches. In the experiments, round metal sheets are formed into the ... Read More ...

Environmental Impact Assessment for Modern Brick Factory in Baghdad, Iraq

Saadi M.D. Al-Nuzal; Salih A. Al-Bakri; Sarah D.A. Zankana

Volume 37, 3C , June 2019, , Page 377-384

https://doi.org/10.30684/etj.37.3C.12

Abstract

The environmental and social impacts of a bricks factory was evaluated and the information's have been collected from a community questionnaire, as well as the analysis quadrilateral ... Read More ...

Assessment of the DesalinationEffect on ShatAl-Arab

Mohammed I. Al-Hashimi; Falah Alnedawy

Volume 37, 3C , June 2019, , Page 385-390

https://doi.org/10.30684/etj.37.3C.13

Abstract

The resource of the dulcet water decreasing on our plant. Obstacles and problems that face water resources are the pollution and increasing of industrial wastes because of the human ... Read More ...

Controlling the Q-Point in Distributed Feedback Lasers Using a Numerical Optimization Methodology

Hisham K. Hisham

Volume 37, 5A , May 2019, , Page 148-156

https://doi.org/10.30684/etj.37.5A.1

Abstract

In this paper, a new methodology for controlling the Q-point in the distributed feedback (DFB) lasers is proposed. The method based on reducing the DFB transient period (TP) by optimizing ... Read More ...

Main Subjects = Engineering

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