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Articles 19921 - 19950 of 1103472

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Improvement Of Erosion Resistance Of Aluminum- Copper Alloy Type 2024 By Plasma Nitriding, Mohammed Maseekh, Ali Ataiwi, Jamal Dawood Mar 2026

Improvement Of Erosion Resistance Of Aluminum- Copper Alloy Type 2024 By Plasma Nitriding, Mohammed Maseekh, Ali Ataiwi, Jamal Dawood

Engineering and Technology Journal

To increase the erosion resistance of 2024 Al alloys, plasma nitriding surface treatment was used. Nitrogen and argon gases are injected into an evacuated chamber until the pressure reaches 15 Pa. The process requirements for normal plasma nitriding were heating at 440˚C for 8 hours, low voltage of 650 V, current of 25 mA, low gas consumption, and no air pollution. A continuous nitriding layer of AlN was formed. The microhardness reached a maximum value of 170 HV, about 3 times higher than that Al melts at, is transported upward through voids and capillaries in the AlN structures, and reacted …

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A Numerical Study Of Friction Stir Welding For Aa5754 Sheets To Evaluate Temperature Profile And Plastic Strain, Mustafa Hadi, Mohanned Al-Khafaji, Akeel Subhi Mar 2026

A Numerical Study Of Friction Stir Welding For Aa5754 Sheets To Evaluate Temperature Profile And Plastic Strain, Mustafa Hadi, Mohanned Al-Khafaji, Akeel Subhi

Engineering and Technology Journal

A full-dimensions 3-D numerical model based on the Lagrangian approach has been employed to predict the peak temperature and the plastic strain distribution in the FSW of (AA5754) joints using ABAQUS software. The material’s model utilizes the classical plasticity model in addition to defining the thermophysical properties of the alloy using JMatPro software to increase the accuracy of the numerical results. The basic variables of FSW were three rotational speeds (930, 1460, and 1860 rpm) and three traverse speeds (35, 65, and 95 mm/min).  The influence of the rotational and traverse speed on temperature profile and plastic strain has been …

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Evaluation Of Pcl Electrospun Scaffolds Concentration On Metformin Hydrochloride Release Ratio, Saja Moosa, Akram Jabur, Emad Al-Hassani, Ahmed Al-Shammari Mar 2026

Evaluation Of Pcl Electrospun Scaffolds Concentration On Metformin Hydrochloride Release Ratio, Saja Moosa, Akram Jabur, Emad Al-Hassani, Ahmed Al-Shammari

Engineering and Technology Journal

The study investigates the effect of polycaprolactone (PCL) concentration on the metformin hydrochloride (MH) release ratio of electrospun nanofiber scaffolds. Blend and emulsion electrospinning are used to produce the scaffolds. The performance of nanofibrous scaffolds was evaluated by morphology (Field Emission Scanning Electron Microscopy, FESEM), chemical (Fourier Transform Infrared Spectroscopy, FTIR), thermal (Differential Scanning Calorimetry, DSC), wettability, porosity, mechanical tests, and in vitro drug release. The average fiber diameter ranged from (189.29-2893.93 nm) according to the FESEM results, and it increased with PCL concentration. The average fiber diameter of the electrospun scaffold, prepared by the blend method (259.64±6.1 nm), is …

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The Impacts Of Calcium Ions Substitution In Hydroxyapatite With Neodymium And Zinc On Biological Properties And Osteosarcoma Cells, Suha Al-Shahrabalee, Hussein Jaber Mar 2026

The Impacts Of Calcium Ions Substitution In Hydroxyapatite With Neodymium And Zinc On Biological Properties And Osteosarcoma Cells, Suha Al-Shahrabalee, Hussein Jaber

Engineering and Technology Journal

Hydroxyapatite (HA) is one of the important biomaterials in the medical field, especially in bone treatment, because of its biological properties close to human bone. A simple co-precipitation technique was used to integrate neodymium and zinc into HA by adding neodymium nitrate and zinc nitrate as a source of substituted elements during synthesis through the wet precipitation method with controlled temperature and pH. Finally, substituted HA was sintered at 800°C after completing the biomaterial preparation. The resulting Nd-Zn/HA was globe-like with nanoparticle size. The Ca+Nd+Zn/P ratio was equal to 1.63, which is relatively close to the molar ratio of bone. …

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Obstacle Avoidance And Path Planning Of A Wheeled Mobile Robot Using Hybrid Algorithm, Tahseen Abaas, Alaa Shabeeb Mar 2026

Obstacle Avoidance And Path Planning Of A Wheeled Mobile Robot Using Hybrid Algorithm, Tahseen Abaas, Alaa Shabeeb

Engineering and Technology Journal

In the mobile robot workplace, the path planning problem is crucial. Robotic systems employ intelligence algorithms to plan the robot's path from one point to another. This paper proposes the fastest and optimal path planning of the wheeled mobile robot with collision avoidance to find the optimal route during wheeled mobile robot navigation from the start point to the target point. It is done using a modern meta-heuristic hybrid algorithm called IPSOGWO by combining Improved Particle Swarm Optimization (IPSO) with Grey Wolf Optimizer (GWO). The principal idea is based on boosting the ability to exploit in PSO with the exploration …

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Parametric Optimization Of Laser Conduction Welding Between Stainless Steel 316 And Polyethylene Terephthalate Using Taguchi Method, Maraw Khioon, Kadhim Hubeatir, Mohanned Al-Khafaji Mar 2026

Parametric Optimization Of Laser Conduction Welding Between Stainless Steel 316 And Polyethylene Terephthalate Using Taguchi Method, Maraw Khioon, Kadhim Hubeatir, Mohanned Al-Khafaji

Engineering and Technology Journal

A pulsed Nd:YAG laser with a fiber optic delivery system was used to accomplish a dissimilar joining of 316 stainless steel (SUS316) to polyethylene terephthalate (PET). Laser Conduction Welding (LCW) was applied as a welding technique to achieve a lap metal/polymer joint by applying the laser from the metal side. The heat was transferred from the metal layer to the polymer layer, which caused the melting and then solidifying of the polymer at the interface. The effect of three welding parameters, laser energy density, pulse duration, and welding speed, on joint force, was studied and discussed. To measure the joint …

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Characterization Of The Efficiency Of Photo-Catalytic Ultrafiltation Pes Membrane Modified With Tungsten Oxide In The Removal Of Tinzaparin Sodium, Reham R. Abdullah, Kadhum M. Shabeeb, Aseel B. Alzubaydi, Alberto Figoli, Alessandra Criscuoli, Enrico Drioli, Qusay Alsalhy Mar 2026

Characterization Of The Efficiency Of Photo-Catalytic Ultrafiltation Pes Membrane Modified With Tungsten Oxide In The Removal Of Tinzaparin Sodium, Reham R. Abdullah, Kadhum M. Shabeeb, Aseel B. Alzubaydi, Alberto Figoli, Alessandra Criscuoli, Enrico Drioli, Qusay Alsalhy

Engineering and Technology Journal

One of the polymeric membranes' main limitations is their susceptibility to fouling, lowering the membrane's performance with time. Therefore, incorporating nanomaterials in polymer matrices has attracted great attention in wastewater treatment applications. It's a promising approach for enhancing membrane hydrophilicity and performance.  Herein, ultrafiltration nanocomposite membranes were synthesized by applying the phase inversion method through immobilizing (0.1-0.4 wt.%) tungsten oxide (WO2.89) nanoparticles in a polyether sulfone (PES) matrix. Membrane's anti-fouling performance was evaluated against tinzaparin sodium. The data showed that the pure water flux improved with increasing nanoparticle loading, reaching its optimum value of 54.9 kg/m2 h at 0.4 wt.% …

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Microstructure And Mechanical Properties Of Zk60 Mg Alloy Processed By Cyclic Expansion-Extrusion (Cee) At Different Temperatures, Ahmed Marheb, Akeel Subhi Mar 2026

Microstructure And Mechanical Properties Of Zk60 Mg Alloy Processed By Cyclic Expansion-Extrusion (Cee) At Different Temperatures, Ahmed Marheb, Akeel Subhi

Engineering and Technology Journal

In this work, the cyclic expansion extrusion (CEE) process was applied to ZK60 Mg alloy. The correlation between the evolved microstructure and mechanical properties was investigated. The CEE process was performed at a constant ram speed (15 mm/min) and at different processing temperatures (190, 270, and 350 °C). Optical and scanning electron microscopes, X-ray diffraction instruments, Vickers hardness tester, and tensile testing machine were utilized to examine the influence of CEE processing temperature on the characteristics of ZK60 Mg alloy. The XRD analysis showed that two phases were presented in the matrix of ZK60 Mg alloy, namely α-Mg and MgZn2, …

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Investigation Nano-Coating For The Corrosion Protection Of Petroleum Storage Tanks Steel, Zainab Ali, Baha Mahdi, Ameen Thamer Mar 2026

Investigation Nano-Coating For The Corrosion Protection Of Petroleum Storage Tanks Steel, Zainab Ali, Baha Mahdi, Ameen Thamer

Engineering and Technology Journal

This work studies the protection from corrosion in the inner surface of petroleum storage tanks by applying nano-coating on the AISI1018 steel type used in these tanks. BNi-2 alloy, used as coating layer, was deposited using the DC sputtering technique to obtain protection layers of nano-coating. The cyclic potential dynamic polarization technique is used to study and evaluate the resistant metal to localize corrosion, for example, pitting and crevice corrosion. The samples were evaluated in a 3.5% NaCl aqueous solution using the polarization method to determine the corrosion rate. The input parameters of deposition included ion current 16 mA, vacuum …

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Nonlinear 3d Finite Element Model For Round Composite Columns Under Various Eccentricity Loads, Dara Mawlood, Serwan Rafiq Mar 2026

Nonlinear 3d Finite Element Model For Round Composite Columns Under Various Eccentricity Loads, Dara Mawlood, Serwan Rafiq

Engineering and Technology Journal

Composite columns are often used in constructing high-rise structures because they can reduce the size of a building's columns while increasing the usable area in the floor plan. This research aimed to develop a nonlinear 3D finite element analysis model using the ABAQUS, version 6.13-4, of various round composite column designs with varied multi-skin of tubes for solid and hollow columns subjected to various eccentricity loads (90, 180 mm). Extended data to another 12 specimens of composite columns by numerical method, based on six references experimental data of composite columns. The results of ABAQUS data in this study show that; …

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Dynamic Response Of Deepwater Pile Foundation Bridge Piers Under Current-Wave And Earthquake Excitation, Riyadh Alsultani, Ibtisam Karim, Saleh Khassaf Mar 2026

Dynamic Response Of Deepwater Pile Foundation Bridge Piers Under Current-Wave And Earthquake Excitation, Riyadh Alsultani, Ibtisam Karim, Saleh Khassaf

Engineering and Technology Journal

Pile foundation bridges are structures extending in the middle of the sea, so they are subject to currents, waves, and earthquake forces. This article presents a hybrid simulation that was used with input excitations of different current velocities, wave properties, and earthquake amplitudes to assess the non-linear dynamic behavior of pile foundation bridge piers. Based on the interface between MATLAB and ABAQUS software, the general formulations of fluid-structure interaction (FSI) under combined current-wave and earthquake loads are derived. Hydrodynamic and earthquake loading is consistently introduced by creating synthetic time histories of combined current-wave actions and spatially variable ground motion. The …

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Hydrodynamic Model-Based Evaluation Of Sediment Transport Capacity For The Makhool-Samarra Reach Of Tigris River, Ala Nama, Ali Abbas, Jaafar Maatooq Mar 2026

Hydrodynamic Model-Based Evaluation Of Sediment Transport Capacity For The Makhool-Samarra Reach Of Tigris River, Ala Nama, Ali Abbas, Jaafar Maatooq

Engineering and Technology Journal

This paper implemented an HEC-RAS-based steady two-dimensional hydrodynamic model to evaluate the hydraulic characteristics and Sediment Transport Capacity (STC) of the Makhool-Samarra Reach of the Tigris River, where this part is not already investigated. This model was prepared with the aid of topographical surveys, hydraulic measurements, and laboratory tests, as well as recorded data. The main findings show that the flow velocities within most of the studied reach are considered high compared to the local and worldwide flow velocity ranges in natural rivers. Also, the Toffaleti sediment transport function with the Van Rijn fall velocity and the effective depth-to-width computation …

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Ecotourist And Picnic Area Assessment Using Ahp Analytical Tools In Sulaimani– Tourism Region, Iraq, Awa Ahmad, Ako Hama, Imzahim Alwan Mar 2026

Ecotourist And Picnic Area Assessment Using Ahp Analytical Tools In Sulaimani– Tourism Region, Iraq, Awa Ahmad, Ako Hama, Imzahim Alwan

Engineering and Technology Journal

Renovation of the naturally existing area for ecotourist and investments that attracting site-visitors, picnickers and tourists for Iraq, Kurdistan Region, Sulaimani need to promote a reliable decision-making technique so as to raise the level of the tourist-based economy. In this study, the most available public well known and recognized tourist and picnic area by the people and associated governmental directories were studied and assessed for their tourism reliability and capacity. The study area of this research covered tourist area and they were forty-three (43) locations and all the related data collected, analyzed and categorized as main and sub-main criterions. The …

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Analytical Solution For The Static Bending Elastic Analysis Of Thick Rectangular Plate Structures Using 3-D Plate Theory, Festus Onyeka, Chidobere Nwa-David, Thompsom Edozie Mar 2026

Analytical Solution For The Static Bending Elastic Analysis Of Thick Rectangular Plate Structures Using 3-D Plate Theory, Festus Onyeka, Chidobere Nwa-David, Thompsom Edozie

Engineering and Technology Journal

In the current work, an analytical solution for static bending analysis of the thick rectangular plate structure was obtained using three-dimensional plate theory. First, the energy equation was formulated from the static elastic principles and transformed into a compatibility equation through general variation to get the slope and deflection relationship. The solution of the compatibility equation gave rise to the exact polynomial deflection function. In contrast, the coefficient of deflection and shear deformation of the plate was obtained from the governing equation through the direct variation method. These solutions were used to obtain the characteristic expression for analyzing the displacement …

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Mechanical Characteristics And Self-Monitoring Technique Of Smart Cementitious Mixtures With Carbon Fiber And Graphite Powder As Hybrid Functional Additives, Raid Abdullah, Ali Al-Dahawi, Hussein Zghair Mar 2026

Mechanical Characteristics And Self-Monitoring Technique Of Smart Cementitious Mixtures With Carbon Fiber And Graphite Powder As Hybrid Functional Additives, Raid Abdullah, Ali Al-Dahawi, Hussein Zghair

Engineering and Technology Journal

In this paper, the self-sensing properties of cementitious composites under compressive loads were investigated by utilizing hybrid functional fillers, which are responsible for creating an electrical network that is used to build the self-sensing capability within the traditional cement-based mixtures. Most of the previous works depict the self-sensing capability with the aid of one type of functional fillers or fibers. The present paper attempts to utilize two types of functional fillers, representing a gap filling within the subject. Four hybrid proportions of Graphite (G) (wt.%) and carbon fibers (CF) (vol.%) were introduced. These are (0.5, 1.0), (1.0, 0.75), (1.5, 0.50) …

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The Performance Of Helical Pile Under Cyclic Load Using 3d-Finite Element Analysis, Ahmed Ali, Nahla Salim, Husam Baqir Mar 2026

The Performance Of Helical Pile Under Cyclic Load Using 3d-Finite Element Analysis, Ahmed Ali, Nahla Salim, Husam Baqir

Engineering and Technology Journal

Helical piles are a kind of foundation that can withstand compression, tension, and lateral stresses. However, this kind of pile was utilized extensively globally for almost 25 years. Its behavior, particularly in Iraq, is uncertain and frightening. The current research used the finite element technique to analyze this kind of pile. The helical pile geometry was suggested to be modeled using the finite element method using the computer software Plaxis 3D The soil used is medium sandy soil. Additionally, parametric analyses were conducted. The primary parametric research examines the impact of helix number, helix spacing, helix diameter, and helix configuration …

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Analyzing Drivers’ Speed Behavior On Various Roads In Baghdad City, Aaisha Jasim, Rasha Al-Rubaee Mar 2026

Analyzing Drivers’ Speed Behavior On Various Roads In Baghdad City, Aaisha Jasim, Rasha Al-Rubaee

Engineering and Technology Journal

This study investigates the driver behavior of a certain number of drivers using a questionnaire method. The questionnaire contains a part of drivers' demographics, including age, gender, and the type of transportation most used by the drivers. It was divided into three parts. Each part deals with a specific type of road in Baghdad City: multi-lane, two-lane, and local. The questions were about the number of times they drove the vehicle on each type of road, the speed at which they drove the vehicle and did not cause accidents, the distance traveled during the last week on each type of …

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Potential Impact Of Global Warming On Climate And Streamflow Of Adhaim River Basin, Iraq, Fouad Saeed, Mahmoud S. Al-Khafaji, Furat Al-Faraj Mar 2026

Potential Impact Of Global Warming On Climate And Streamflow Of Adhaim River Basin, Iraq, Fouad Saeed, Mahmoud S. Al-Khafaji, Furat Al-Faraj

Engineering and Technology Journal

Global warming induces to increase of greenhouse gases in the atmosphere and plays a crucial role in determining the future trend in climatology and hydrology of a watershed. This paper aims to investigate the implications of global warming on future climate and its consequents on streamflow of the Adhaim River Basin (ARB). For this purpose, the Long Ashton Research Station-Weather Generator (LARS-WG) and Soil and Water Assessment Tool (SWAT)-Based models were implemented. The climate and hydrologic records for the period 1990-2019 were used as a Reference Period (RP) and projected to 2080 under Representative Concentration Pathways (RCPs 2.6, 4.5, and …

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Accuracy Assessment Of Establishing 3d Real Scale Model In Close-Range Photogrammetry With Digital Camera, Ali Hadi, Abbas Khalaf Mar 2026

Accuracy Assessment Of Establishing 3d Real Scale Model In Close-Range Photogrammetry With Digital Camera, Ali Hadi, Abbas Khalaf

Engineering and Technology Journal

Three-dimensional (3D) real scale models delivered from digital photogrammetric techniques have rapidly increased to meet the requirements of many applications in different fields of daily life. This paper deals with the establishment of a 3D real scale model from a block of images (18 images) that were captured by using Canon EOS 500D digital camera to cover a test field area consisting of 90  artificial target points, 25 of them are ground control points (GCPs) while the remains are checkpoints (CPs). The analytical photogrammetric processes including the calculation of interior orientation parameters (IOPs) of the camera during the camera calibration …

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Eco-Sustainable Bridging Of Housing Deficit – A Case Study Of Nigeria, Olumide Towoju, Timothy Adeyi, Kayode Ekun, Omogbolade Adepitan Mar 2026

Eco-Sustainable Bridging Of Housing Deficit – A Case Study Of Nigeria, Olumide Towoju, Timothy Adeyi, Kayode Ekun, Omogbolade Adepitan

Engineering and Technology Journal

Keeping the average global temperature rise below the 1.5oC value over the pre-industrial era requires all hands to be on deck. The energy sector, transportation sector, and the agricultural/land use segment are significant contributors to greenhouse gas emissions responsible for global warming. While there is an ongoing campaign for tree planting to reduce atmospheric CO2 volumes, it is imperative to note that the population explosion in some climes is pushing up the demands for land. The housing deficit in Nigeria is more than twenty million units. Building units are required to bridge the deficit; hence, an attendant forest cover loss. …

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Integrated Approach For Land Surface Temperature Assessment In Different Topography Of Iraq, Zainab Jabal, Thair Khayyun, Imzahim Alwan Mar 2026

Integrated Approach For Land Surface Temperature Assessment In Different Topography Of Iraq, Zainab Jabal, Thair Khayyun, Imzahim Alwan

Engineering and Technology Journal

Land Surface Temperature (LST) is a critical parameter for water resources and hydrology investigation. Weather ground stations provide a continuous dataset on the LST. However, some stations rely on discrete events data, which shows limited capabilities to monitor diurnal and annual changes in LST. Remote Sensing technology provided much valid information by using Moderate Resolution Imaging Spectroradiometer (MODIS) to cover LST variations in Iraq. This study aims to analyze LST variation based on MOD11C3 Data with weather ground measurements stations for the different topography periods between 2000-2020. Different statistical parameters were used to validate LST results, including RSME; NSE; R2, …

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Effects Of Curing Temperature And Chemical Admixture Type On Fresh Properties And Compressive Strength Of Ultra High-Performance Concrete, Khaldon Aswed, Maan Hassan, Hussein Al-Quraishi Mar 2026

Effects Of Curing Temperature And Chemical Admixture Type On Fresh Properties And Compressive Strength Of Ultra High-Performance Concrete, Khaldon Aswed, Maan Hassan, Hussein Al-Quraishi

Engineering and Technology Journal

The types of post-setting curing and high range water reducing (HRWR) admixture used in Ultra-High-Performance Concrete (UHPC) mixtures play significant roles in determining their rheological and mechanical properties. This study compares the performance of three types of HRWR admixtures commercially available when added to UHPC mixtures under three different curing regimes. Mixtures made with the different superplasticizers were evaluated for their flow, 45mins flow retention, and setting time as fresh mix properties. Compressive strength was also tested for each mixture after 3, 7, and 28 days of curing at the investigated various curing regimes. Sika Viscocrete 180GS produced the highest …

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Effect Of Glass Wastes On Basic Characteristics Of Controlled Low-Strength Materials, Saif Abdulmunem, Shatha Hasan Mar 2026

Effect Of Glass Wastes On Basic Characteristics Of Controlled Low-Strength Materials, Saif Abdulmunem, Shatha Hasan

Engineering and Technology Journal

The harnessing of glass waste, which is slow to decompose and has high recycling costs, is in the interest of supporting and stimulating a balanced construction pattern that is interdependent on the living environment. Consumable food and drink bottles are one of these forms of waste that can be calibrated to meet desired specifications. Controlled low-strength materials with low and deliberate strength for future excavation have highly desirable rheological properties, active hardening, and zero or rare separation of materials can be maintained with waste glass substitution. In this study, an experimental evaluation was commenced to estimate the practicality of waste …

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Assessment Of The Effect Of Nono-Clay On Recycled Asphalt Mixtures Resistance To Moisture, Mays Jaafar, Hasan Joni, Hussein Karim Mar 2026

Assessment Of The Effect Of Nono-Clay On Recycled Asphalt Mixtures Resistance To Moisture, Mays Jaafar, Hasan Joni, Hussein Karim

Engineering and Technology Journal

Introducing nanotechnology to the pavement industry witnessed a great interest due to the proven benefits of nanotechnology in various scientific fields. However, the reduction in the binder's characteristics might be disadvantageous to the durability of the recycled mixture, making it more susceptible to external factors such as moisture. Therefore, using nanotechnology is expected here to treat this issue. The goal of the current paper is to report on the influence of the nano-clay montmorillonite (MMT) powder (MMT k10) on the resistance to moisture in the hot recycled mixtures or the Reclaimed Asphalt Pavement mixtures (RAP mixtures). In this work, different …

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Enhancement Of The Rutting Resistance Of Asphalt Mixtures At Different High Temperatures Using Waste Polyethylene Polymer, Hasan Joni, Ali Al-Rubaie Mar 2026

Enhancement Of The Rutting Resistance Of Asphalt Mixtures At Different High Temperatures Using Waste Polyethylene Polymer, Hasan Joni, Ali Al-Rubaie

Engineering and Technology Journal

The temperature and stress caused by the load can be cited as two main parameters leading to breakage in asphalt pavement, especially rutting (permanent deformation). So, to reduce the problems of rutting of roads, several actions have been taken, including improving pavement quality and the structure design methods. The increase in the attention of respective engineers in the last few years to modify and improve the asphalt performance through providing different types of additives and replacing the raw materials of asphalt mixture with recycled materials to improve the environment and reduce the cost of modified pavement mixture. This study discussed …

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An Experimental And Theoretical Studies Wings Piles At Different Sandy Soil Densities, Taha Mahdi, Mohammed Al-Neami, Falah Raheel Mar 2026

An Experimental And Theoretical Studies Wings Piles At Different Sandy Soil Densities, Taha Mahdi, Mohammed Al-Neami, Falah Raheel

Engineering and Technology Journal

Increasing the cross-sectional area of the piles or adding wings to the piles are two strategies for increasing the bearing capacity of the piles to resist lateral stresses. Small and full-scale finite element models were used to investigate the effect of adding the wings on the laterally loaded pile bearing capacity in this study. Four embedded ratios (4, 6, 8, and 10) were used with various wing dimensions and numbers. The results showed that adding wings to the pile increases the resistance to lateral loads and reduces the lateral displacement significantly. +To achieve the highest lateral resistance, the wings should …

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Sustainable High-Performance Concrete Reinforced With Hybrid Steel Waste Fibers, Zainab Jabbar, Wassan Khalil Mar 2026

Sustainable High-Performance Concrete Reinforced With Hybrid Steel Waste Fibers, Zainab Jabbar, Wassan Khalil

Engineering and Technology Journal

This research aims to study the benefit of using fibers made from waste materials in concrete and evaluate the ability to use these fibers as a substitute for commercial fibers. Different aspect ratios of alternative fibers formed from cut steel tied wire waste were utilized. This material is selected because of its low price and wide availability. Two concrete mixes with 15% waste crushed clay brick coarse aggregate reinforced with different volume fractions of 1.0 and 1.5% and an aspect ratio of 40 were prepared. Also, three concrete mixes reinforced with a hybrid aspect ratio of 40 and 65 of …

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The Permeation And Separation Characteristics Of Polymeric Membranes Incorporated With Nanoparticles For Dye Removal And Interaction Mechanisms Between Polymer And Nanoparticles: A Mini Review, Dalya Al-Araji, Faris Al-Ani, Qusay Alsalhy Mar 2026

The Permeation And Separation Characteristics Of Polymeric Membranes Incorporated With Nanoparticles For Dye Removal And Interaction Mechanisms Between Polymer And Nanoparticles: A Mini Review, Dalya Al-Araji, Faris Al-Ani, Qusay Alsalhy

Engineering and Technology Journal

Dyes are an essential group of organic pollutants with a long history of harming aquatic life and humans. Prior to disposal, polluted dye wastewater must be adequately treated to prevent adverse impacts on persons and the environment. Although there are several techniques for dye removal, most of them share a similar drawback: they generate secondary pollution to the environment. Membrane separation is highlighted in this article because it is one of the most efficient dye removal techniques available nowadays due to its high removal capacity, ease of operation, and clean water generation. Polymeric membranes are frequently used in membrane-based separations …

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Influence Of Adding Plant Fly Ash On The Geotechnical Properties And Pollution Of Sanitary Landfill Soil, Abdulrahman Salim, Zainab Mohammed, Mohamed Fattah Mar 2026

Influence Of Adding Plant Fly Ash On The Geotechnical Properties And Pollution Of Sanitary Landfill Soil, Abdulrahman Salim, Zainab Mohammed, Mohamed Fattah

Engineering and Technology Journal

This paper investigates the impact of the plant fly ash (dry tree leaves) addition on the geotechnical properties of the landfill soil, where an engineering laboratory landfill simulating a real landfill was manufactured. Two percentages of plant fly ash (10% and 15%) were used to reduce or prevent the penetration of heavy metals resulting from the decomposition of landfill waste into the soil and conducting laboratory tests such as the Atterberg test, specific gravity test, compaction test, permeability test, SEM test, and heavy metals analysis. The results of laboratory tests indicate a decrease in the plastic limit and the liquid …

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Modifying The Properties Of Open-Graded Friction Course By Adding Cellulose Fiber, Ahmed Muhammed, Zaynab Qasim, Rasha Al-Rubaee Mar 2026

Modifying The Properties Of Open-Graded Friction Course By Adding Cellulose Fiber, Ahmed Muhammed, Zaynab Qasim, Rasha Al-Rubaee

Engineering and Technology Journal

In recent years, Open Graded Friction Course OGFC is becoming more common in some countries. It is applied to improve surface frictional resistance, minimize hydroplaning, reduce water spray, improve night visibility, and lower pavement noise levels. These functions are carried out primarily by removing water from the pavement surface during a period of rain. Also, it has many disadvantages which as poor resistance to permanent deformation, low fatigue strength, high stripping, and moisture susceptibility. The paper aims to investigate the probability of using Cellulose Fiber (CF) as a modifier to improve the properties of OGFC asphalt mixture. In this research, …

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