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Design And Manufacturing Of Custom 3d Printed Bone Implants, Zaineb Neamah, Luma Al-Kindi, Ghassan Al-Kindi Mar 2026

Design And Manufacturing Of Custom 3d Printed Bone Implants, Zaineb Neamah, Luma Al-Kindi, Ghassan Al-Kindi

Engineering and Technology Journal

In medical surgery, a customized implant is often required to meet surgical requirements, especially in cases with complicated or traumatic deformities. The emerging techniques of additive manufacturing, e.g., 3D printing, may help provide a quick response to such needs, provided that a valid approach capturing required implant shape data is generated and processed to better suit 3D printing. Different materials, including biocompatible polymer and metal, may suit medical-surgical applications. In this paper, an investigation is conducted to assess 3D printing technology use as part of a full system, from capturing implant shape data to producing the customized implant. The investigation …

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Antibacterial Improvement With Multilayer Of Bio-Composite Coatings Produced By Electrophoretic Deposition, Noor Al-Ali, Makarim Abdulkareem, Iman Anoon Mar 2026

Antibacterial Improvement With Multilayer Of Bio-Composite Coatings Produced By Electrophoretic Deposition, Noor Al-Ali, Makarim Abdulkareem, Iman Anoon

Engineering and Technology Journal

In this study, multi-structured coatings of biocompatible and antibacterial materials on a 316L stainless steel (SS) implant have been electrophoretically deposited for orthopedic applications. Two layers of composite coatings have been deposited; the first layer of composite coating biopolymer layer consists of (chitosan with Gelatin) and the second composite coating layer of bio-ceramic comprises Hydroxyapatite with chitosan. The first layer was deposited at (3 g/L concentration of Gelatin, 20 voltage, and 3 min and 0.5 g/L chitosan) parameters, and the second layer was deposited at (6 g/L, 40 voltage, 1 min, and 0.5 g/L chitosan) parameters. In this study, the …

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Cold Sintering Process Of Hydroxyapatite Derived From Natural Bone And Co-Precipitation Method: A Comparative Study, Hawraa Abbas, Hanaa Smeig, Zuhair Abdul Ameer Mar 2026

Cold Sintering Process Of Hydroxyapatite Derived From Natural Bone And Co-Precipitation Method: A Comparative Study, Hawraa Abbas, Hanaa Smeig, Zuhair Abdul Ameer

Engineering and Technology Journal

This study uses a novel sintering technique at very low temperatures (below 300°C) named the Cold Sintering Process to produce highly dense Hydroxyapatite (HA) samples. Nano hydroxyapatite was prepared using two different methods: Synthesis by chemical precipitation method (HA1) and natural source from Boven bone (HA2). The samples are characterized using scanning electron microscope (SEM), X-ray energy dispersive spectrometry (EDS), X-ray diffractogram (XRD), transition electron microscope (TEM), Fourier transform infrared spectrometry (FTIR) and Nuclear magnetic resonance spectroscopy (NMR). Also, physical and mechanical properties measurements were detected, including density and hardness. The results indicated that cold sintering could result in Hydroxyapatite …

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Experimental And Multi-Optimization Investigation Of Machining (X210) Alloy Steel Using Angled Edm Electrodes, Ahmed Abbas, Ali Khleif Mar 2026

Experimental And Multi-Optimization Investigation Of Machining (X210) Alloy Steel Using Angled Edm Electrodes, Ahmed Abbas, Ali Khleif

Engineering and Technology Journal

Electrical Discharging Machining (EDM) offers broad capabilities that allow it to be used in the manufacturing, automotive, and aviation industries, as well as practically all disciplines of conductive material machining. This experimental and numerical work aims to use EDM to evaluate the surface of Alloy Steel (X210). The experiments used the EDM copper electrode with a novel horizontal flushing hole. The findings of the investigations have been analyzed so that the best settings for the input process factors can be determined. Alloy tool steel (X210) is cut in dimensions by the Wire EDM (dk7740) (15 × 15 × 10 mm) …

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The Impact Of Magnetic Abrasive Finishing (Maf) Process Parameters On The Microhardness Of Stainless Steel Sus420 Bubble Cups, Athraa Ahmed, Saad Shather Mar 2026

The Impact Of Magnetic Abrasive Finishing (Maf) Process Parameters On The Microhardness Of Stainless Steel Sus420 Bubble Cups, Athraa Ahmed, Saad Shather

Engineering and Technology Journal

The optimal performance of bubble cups relies on achieving the appropriate surface quality, a common requirement in various industrial applications. The effectiveness of the Magnetic Abrasive Finishing (MAF) process depends on several factors, including the brush's flexibility, that vary across tools. This study investigates the influence of five key parameters, voltage, finishing time, gap distance, rotating speed, and particle size, on microhardness (MH). Experimental work was based on Taguchi design with L27 trials in Minitab 17, involving five variables with three levels for each. The impact of these parameters on microhardness for stainless steel SUS420 bubble cups is assessed using …

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Assessing The Influence Of Climate Change On Sediment Dynamics In The Proposed Makhool Dam Reservoir, Iraq, Nisreen Rasheed, Mahmoud Al-Khafaji, Imzahim Alwan Mar 2026

Assessing The Influence Of Climate Change On Sediment Dynamics In The Proposed Makhool Dam Reservoir, Iraq, Nisreen Rasheed, Mahmoud Al-Khafaji, Imzahim Alwan

Engineering and Technology Journal

Makhool Dam is a proposed structure on the Tigris River in the Salah al-Din Governorate, northwest of Baiji. The reservoir's sediment sources encompass the Tigris River, the Greater Zab River, and the Lesser Zab River. Climate change exerts a significant influence on both sediment accumulation within the dam reservoir and associated water resources. This paper specifically investigates the impact of climate change on sediment dynamics within the Makhool Dam reservoir. HEC-RAS 6.3.1 has been used to simulate the sediment dynamics and flow for the three rivers entering the reservoir. The SSP2-4.5 and SSP5-8.5 emission scenarios were applied to the 2021-2040, …

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Dynamic Displacement Of Sheet Pile Walls Adjacent To The Railway Track, Kather Naji, Mohammed Al-Neami, Mahmood Mahmood Mar 2026

Dynamic Displacement Of Sheet Pile Walls Adjacent To The Railway Track, Kather Naji, Mohammed Al-Neami, Mahmood Mahmood

Engineering and Technology Journal

Due to the scarcity of experimental laboratory research on the effect of repetitive stress resulting from the railway on retaining walls, this study presents an investigation of an experimental laboratory model to study the effect of repetitive loads resulting from the railway on the adjacent retaining wall through several factors. The results of an experimental investigation of horizontal displacements of steel sheet pile walls behind excavations in the sand adjacent to railway tracks are presented. A series of model tests have been carried out in which the effect of sand density, horizontal distance between the railway and the sheet wall, …

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Comparison Of Locally Manufactured Composite Tile Adhesive Using Waste Material With Imported Tile Adhesive, Samer Turki, Sarmad Ibrahim, Mohammed Al Maamori Mar 2026

Comparison Of Locally Manufactured Composite Tile Adhesive Using Waste Material With Imported Tile Adhesive, Samer Turki, Sarmad Ibrahim, Mohammed Al Maamori

Engineering and Technology Journal

One of the most important construction activities worldwide is the construction using autoclaved aerated concrete units at the global level is increasing significantly and the use of these units leads to the consumption of large amounts of resources and causes large residues waste, which leads to great damage to the environment and significant economic losses for companies and people. In recent periods, a noticeable increase has been observed in the manufacture of building units in Iraq. Iraqi factories have been affected by the waste resulting from manufacturing processes. The main objective of the study is to utilize tons of waste …

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Design Of Waste Stabilisation Ponds For Municipal Effluent Treatment In Sobi Cantonment, Ilorin, Nigeria, Francis Ogbozige Mar 2026

Design Of Waste Stabilisation Ponds For Municipal Effluent Treatment In Sobi Cantonment, Ilorin, Nigeria, Francis Ogbozige

Engineering and Technology Journal

The generation of wastewater or effluent is unavoidable as long as humans exist, and it could cause potential danger if not properly managed. One way to manage it is by ensuring proper treatment before discharging into rivers, streams, and creeks. This will not just protect human health but will also protect aquatic fauna and flora. Thus, this research applied scientific and engineering principles to design a waste stabilization pond (WSP) to treat municipal effluent generated in a large military community (Sobi Cantonment), which currently lacks a wastewater treatment plant. The research revealed that the WSP will comprise two anaerobic ponds, …

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Evaluating Land Use Land Cover Classification Based On Machine Learning Algorithms, Basheer Jasim, Oday Jasim, Amjed Al-Hameedawi Mar 2026

Evaluating Land Use Land Cover Classification Based On Machine Learning Algorithms, Basheer Jasim, Oday Jasim, Amjed Al-Hameedawi

Engineering and Technology Journal

Image classification depends substantially on the remote sensing method to generate maps of land use and land cover. This study used machine learning algorithms for classifying land cover, evaluating algorithms, and choosing the best way based on accuracy assessment matrices for land cover classifications. Satellite images from the Landsat by the United States Geological Survey (USGS) were used to classify the Babylon Governorate Land Use Land Cover (LULC). This study employed multispectral satellite images utilizing a spatial resolution of 30 meters and organized the data using three different algorithms to see the most accuracy. The process of categorization was carried …

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Performance Of Potato Starch Admixture On Fresh And Hardened Behaviours Of Concrete At Varied Mix Design Ratios, Chidobere Nwa-David Mar 2026

Performance Of Potato Starch Admixture On Fresh And Hardened Behaviours Of Concrete At Varied Mix Design Ratios, Chidobere Nwa-David

Engineering and Technology Journal

The urgency to attenuate techno-economic and ecological threats constituted by chemical admixtures has necessitated the adoption of feasible natural admixtures. The chemical interaction of admixtures with concrete ingredients affects concrete's plastic and hardened structure. The impact of concrete properties on construction works is of great concern to engineers as it plays a vital role towards viable infrastructural development. This study focused on developing an eco-friendly, sustainable structural concrete using potato starch (PS) as an admixture. PS has been included to in concrete in discrete percentages (0%, 0.4%, 0.8%, 1.2%, 1.6%, 2.0%) of cement weight employing mix ratios of 1: 1.5: …

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Evaluating The Structural Performance Of Waste Pet-Infused Interlocking Units Versus Traditional Stone Masonry, Omogbolade Adepitan, Ayotunde Fasina Mar 2026

Evaluating The Structural Performance Of Waste Pet-Infused Interlocking Units Versus Traditional Stone Masonry, Omogbolade Adepitan, Ayotunde Fasina

Engineering and Technology Journal

This study focuses on PET waste reduction worldwide by looking at the application of these polymeric materials in the construction and building industries. An effective application of PET wastes will reduce PET pollution, especially in water bodies. Due to its rising cost, it can partially replace the conventional binder used (cement).Bricks were made in the conventional cement-sand and PET-sand, and a total of 72 cubes were produced for different mix ratios of 1:1, 1.5:1, and 2:1. Their properties like particle size analysis, water absorption, slump testing, and compressive strength were investigated and compared.The particle size analysis showed that the sand …

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Drought Forecasting Model For Future Climate Change Effects In A Regional Catchment Area In Northern Iraq, Nasser Muhaisen, Thair Khayyun, Mustafa Al-Mukhtar Mar 2026

Drought Forecasting Model For Future Climate Change Effects In A Regional Catchment Area In Northern Iraq, Nasser Muhaisen, Thair Khayyun, Mustafa Al-Mukhtar

Engineering and Technology Journal

Climate change plays a crucial role in shaping the hydrological dynamics of rivers owing to its immediate implications on the driving meteorological parameters. Therefore, Understanding climate change and its implications is essential for sustainable water resource management. This study aims to assess the extent of climate change and its effects on streamflow in the Mosul Dam watershed Under three global warming Representative Concentration Pathways scenarios (i.e., 2.6, 4.5, and 8.5) based on mean climate data extracted from four Global Circulation Models (i.e., Beijing Climate Center, China, Commonwealth Scientific and Industrial Research Organization, Australia, Met Office Hadley Center, United Kingdom, and …

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Strain Capacity And Flexural Strength Behavior Of Bendable Concrete Produced With Different Polymeric Fibers, Ikram Al-Mulla, Tareq Al-Attar, Abbas Al-Ameeri, Ammar Al-Rihimy Mar 2026

Strain Capacity And Flexural Strength Behavior Of Bendable Concrete Produced With Different Polymeric Fibers, Ikram Al-Mulla, Tareq Al-Attar, Abbas Al-Ameeri, Ammar Al-Rihimy

Engineering and Technology Journal

The incorporation of fibers into engineered cementitious composite concrete imparts flexibility to the material. Therefore, using different types and contents of polymeric fibers would affect the behavior of such concrete types, and it is worth contemplating. The present research aims to study the flexural strength and the strain capacity of engineered cementitious composite concrete produced with polyvinyl alcohol fibers (PVA) and polypropylene fibers (PP) with different volume fractions (1%, 1.5%, and 2%). Six mixes of engineered cementitious composite concrete of three grades of strengths, 30, 45, and 60 MPa, were produced. Results revealed that mixes of 60 MPa with 2% …

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Manufacturing Of Sustainable Ultra-High-Performance Concrete Using Response Surface Methods, Abbas Mohammed, Maan Hassan, Hussein Al-Quraishi Mar 2026

Manufacturing Of Sustainable Ultra-High-Performance Concrete Using Response Surface Methods, Abbas Mohammed, Maan Hassan, Hussein Al-Quraishi

Engineering and Technology Journal

Quartz powder is used in ultra-high-performance concrete to improve granular packing, but repeated inhalation during manufacture can cause health issues. The mechanical properties of UHPC are influenced by the post-setting curing method. A hypothesis suggests limestone powder could be a viable filler to mitigate these issues under three different curing regimes, replacing quartz powder of similar size. The study assessed 18 mixtures with different w/b ratios for flow characteristics and compressive strength after 7 and 28 days of curing under various conditions. Limestone powder positively impacted compressive strength and had fresh properties. A two-factor interaction model accurately correlated variables and …

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Life Cycle Economic Comparison Between Rigid And Flexible Pavement: A Case Study For The Construction Of Wajen- Garin Barkamawa-Dugurawa Road In Kano State Nigeria, Rowland Adewumi, Wasiu Sulaiman, Adeniyi Shola Mar 2026

Life Cycle Economic Comparison Between Rigid And Flexible Pavement: A Case Study For The Construction Of Wajen- Garin Barkamawa-Dugurawa Road In Kano State Nigeria, Rowland Adewumi, Wasiu Sulaiman, Adeniyi Shola

Engineering and Technology Journal

Flexible pavements may be strengthened and enhanced incrementally to meet traffic needs, making them preferable to cement concrete roadways. Due to the rise of poor-quality bituminous pavements, Nigeria is promoting concrete pavements. Concrete pavements are becoming more popular because of their durability and ability to withstand heavy traffic and harsh environmental conditions. The primary objective of this study is to provide a comprehensive comparative analysis of both flexible and rigid pavement suitability, considering various parameters such as material characteristics, load-bearing capacity, longevity, and cost-effectiveness. The pavement structure used for the project meets the Federal Ministry of Works Highway Manual Part …

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Effect Of Structure Height On Seismic Response Of Adjacent Structures Considering Soil-Structure Interaction, Mohammed Abdulaziz, Mohammed Hamood, Mohammed Fattah Mar 2026

Effect Of Structure Height On Seismic Response Of Adjacent Structures Considering Soil-Structure Interaction, Mohammed Abdulaziz, Mohammed Hamood, Mohammed Fattah

Engineering and Technology Journal

Seismic activity has emerged as a mostly attractive issue for researchers and engineers, particularly in light of the recent occurrence of severe earthquakes worldwide, such as those felt in Turkey and Syria. Most entities prone to seismic damage are the structures. Any type of structure consists of a composite system involving structure, foundation, and soil. Previously, numerical and analytical methods for dynamic seismic analysis of structures ignored the impact of this system during earthquakes. In other words, soil-structure interaction (SSI) was ignored. Moreover, another important factor that was not considered is the interaction between structures and soil, or what is …

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Torsional Strength Of Horizontally Curved Continuous Reinforced Concrete Box Girder Bridges, Asala Dawood, Khattab Abdul-Razzaq, Wael Abdulsahib Mar 2026

Torsional Strength Of Horizontally Curved Continuous Reinforced Concrete Box Girder Bridges, Asala Dawood, Khattab Abdul-Razzaq, Wael Abdulsahib

Engineering and Technology Journal

The horizontally curved box girder bridges are considered important nowadays because of their low cost compared to the load capacity and torsion moments that they can carry. This study presents a finite element analysis of a continuous box girder bridge using CSI finite element bridge software. Three spans with 40 m length, 12.5 m width, and 2.3 m height are studied. The analysis included different radii of curvature with different loading locations along the transverse direction of a cross-section. Several conclusions were reached, the most important of which is that the torsional moments in the outer face are superior to …

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Modifying The Strength Of Soft Soils Via Heating And Cement Grouting Method, Ali Shareef, Mohammed Al- Neami, Falah Rahil Mar 2026

Modifying The Strength Of Soft Soils Via Heating And Cement Grouting Method, Ali Shareef, Mohammed Al- Neami, Falah Rahil

Engineering and Technology Journal

Soft clayey soils present geotechnical engineering challenges with significant stability and settlement. Various methods are employed to enhance the geotechnical properties of these soils. Heating and grouting are the methods used to improve such soil. A new heating and cement grouting system using gas as a source of heating through boreholes and Portland cement for grouting was designed and manufactured to enhance the soft soil. Different parameters were investigated, including the shear strength and the angle of internal friction, as well as the water/cement ratio, W/C (0.5, 0.75, 1, 1.25, 1.5, and 1.75), and the period of curing (3, 14, …

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Solving Westergaard Half-Space Problems Using Potential Theory, Charles Ike Mar 2026

Solving Westergaard Half-Space Problems Using Potential Theory, Charles Ike

Engineering and Technology Journal

The Westergaard half-space problem has been solved using the potential theory in this work. It is a classical theme in elasticity theory that seeks to find the displacements and stresses in the half-space caused by known boundary loads. It has important applications in analyzing stresses and displacement fields in soil due to applied points and distributed loads on the boundary caused by structures placed on the soil. It is governed by stress–strain, strain-displacement, and equilibrium equations. Horizontal inextensibility is assumed in developing the problem, simplifying the displacement formulation to a three-dimensional (3D) Laplace equation. The potential theory is applied to …

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Evaluation Of The Synergistic Effects Of Synthesized Silver Nanoparticles Conjugated Tetracycline, Nehia Hussein, Zahraa Zghair, Ruqaya Hussein, Alaa Hameed, Amna Abdul-Jabbar, Buthenia Hasoon, Hamdoon Mohammed, Ghassan Sulaiman Mar 2026

Evaluation Of The Synergistic Effects Of Synthesized Silver Nanoparticles Conjugated Tetracycline, Nehia Hussein, Zahraa Zghair, Ruqaya Hussein, Alaa Hameed, Amna Abdul-Jabbar, Buthenia Hasoon, Hamdoon Mohammed, Ghassan Sulaiman

Engineering and Technology Journal

The antibiotic impacts of classical drugs against bacteria could be enhanced via the conjugation of silver nanoparticles. After the successful coating of silver nanoparticles (AgNPs) with Tetracycline, the characterization of the conjugate properties was achieved through measurements with scanning electron microscopy (SEM) coupled to an energy-dispersive X-ray analyzer (EDX). The SEM analysis shows the appearance of silver nanoparticles with an average particle size of 22.82 nm and a cubic shape. Meanwhile, the EDX spectrum of silver NPs exhibits peaks corresponding to elemental silver. The anti-bacterial activity of pure Tetracycline and tetracycline-AgNP conjugates was examined against ten isolates of Pseudomonas aeruginosa. …

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Recycling Of Waste Papers: Yield And Quality Of The Ash-Derived Materials, Ubong Robert, Sunday Etuk, Okechukwu Agbasi, Prosperity Ambrose, Rowland Adewumi Mar 2026

Recycling Of Waste Papers: Yield And Quality Of The Ash-Derived Materials, Ubong Robert, Sunday Etuk, Okechukwu Agbasi, Prosperity Ambrose, Rowland Adewumi

Engineering and Technology Journal

This research was designed to assess the yield and quality of ash prepared from different types of waste papers. Waste newspapers, writing papers, and cartons were selected for combustion to obtain the ashes and coded as WNPA, WWPA, and WCPA, respectively. The waste papers were incinerated simultaneously in separate but identical incinerators at 850 ℃. An experiment on the yield of the ashes was performed on two days before the ashes obtained were mixed based on the type of waste papers from which they were derived. The results showed that irrespective of the day and time, the WCPA was the …

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Blockchain-Based E-Government System Using Websocket Protocol, Zainab Kamal, Rana Ghani, Alaa Farhan Mar 2026

Blockchain-Based E-Government System Using Websocket Protocol, Zainab Kamal, Rana Ghani, Alaa Farhan

Engineering and Technology Journal

This paper explores the Integration of Blockchain technology and WebSocket protocol to implement E-government system. Blockchain is used to record the correspondence between users and the government while WebSocket is used for the communication among the distributed nodes of the blockchain network. This system leverages the inherent security and transparency of blockchain in addition to the real-time communication capabilities of WebSocket, which elevate the performance of the delivered services by the government. In this paper, the users can submit transactions and track it in a way that allows them to follow up on all actions taken on their transactions. Information …

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Effect Of The Stochastic Weibull Parameters On The Reliability Of The Dialysis Machine, Sofiene Fenina, Souheyl Jendoubi, Faker Bouchoucha Mar 2026

Effect Of The Stochastic Weibull Parameters On The Reliability Of The Dialysis Machine, Sofiene Fenina, Souheyl Jendoubi, Faker Bouchoucha

Engineering and Technology Journal

Dialysis machines operate in an uncertain environment with several sources of disturbances; therefore, it is necessary to take account of the uncertainties during all their life phases. This paper presents a study of the random reliability of the dialysis machine in a stochastic environment through the two-parameter for Weibull distribution. The shape and scale parameters were estimated through analytical and graphical methods based on the failure history of the devices. The formulation of the analytical methods and their exploitation using numerical simulations was one of the objectives of this work. The uncertainties in the stochastic environment of the machines are …

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Influence Of Oil Palm Mesocarp Fiber On Physical Properties Of Fabricated Plaster Of Paris Ceilings, Armstrong Anonaba, Francis Eze, Israel Ndukwe Mar 2026

Influence Of Oil Palm Mesocarp Fiber On Physical Properties Of Fabricated Plaster Of Paris Ceilings, Armstrong Anonaba, Francis Eze, Israel Ndukwe

Engineering and Technology Journal

This study was designed to investigate how some important physical properties of Plaster of Paris (POP) ceilings are affected by the utilization of untreated oil palm mesocarp fiber (UOPMF) and treated oil palm mesocarp fiber (TOPMF) as a modifier. Both fibers were utilized separately at various weight proportions (0, 10, 20, 30, and 40%) to fabricate the ceiling samples. The samples were dried completely and then tested for water absorption, porosity, bulk density, thermal conductivity, specific heat capacity, thermal diffusivity, heat flow time, and flakiness. All the samples could improve thermal insulation performance better than conventional ceilings like asbestos and …

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Assessment Of Properties Of Composite Boards From Groundnut Shells And Sawdust For Their Suitability For Structural Applications, Ekong Nathaniel, Nsikak Ekpenyong, Casmir Zanders Akaolisa, Okwet Yawo, Grace Umoren, Samuel Akpan Mar 2026

Assessment Of Properties Of Composite Boards From Groundnut Shells And Sawdust For Their Suitability For Structural Applications, Ekong Nathaniel, Nsikak Ekpenyong, Casmir Zanders Akaolisa, Okwet Yawo, Grace Umoren, Samuel Akpan

Engineering and Technology Journal

Groundnut shells and sawdust are generated in vast quantities yearly but under-utilized. In developing countries, this situation leads to their disposal by unplanned landfilling, indiscriminate dumping, or open burning as ineffective solid waste management systems persist. Such practices constitute severe environmental problems that need to be urgently tackled. In this work, composite boards were fabricated from groundnut shell particles (GSP) and sawdust particles (SDP) at varying volumetric proportions of 0%, 25%, 50%, 75%, and 100 % using Topbond as a binding agent. The boards were dried completely and then assessed for water absorption, bulk density, thermal conductivity, specific heat capacity, …

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An Empirical Investigation And Computational Modeling Of Volatile Organic Compound (Vocs) Elimination From Aqueous Solutions By Means Of Pervaporation, Salam Rasheed, Salah Ibrahim, Asmaa Abbas, Raed Al-Jaboori, Zeinab Jawad, Low Chun, Qusay Alsalhy Mar 2026

An Empirical Investigation And Computational Modeling Of Volatile Organic Compound (Vocs) Elimination From Aqueous Solutions By Means Of Pervaporation, Salam Rasheed, Salah Ibrahim, Asmaa Abbas, Raed Al-Jaboori, Zeinab Jawad, Low Chun, Qusay Alsalhy

Engineering and Technology Journal

The present study harnessed a commercially available polydimethylsiloxane (PDMSTM4060) membrane designed for the selective separation of soluble benzene (C6H6) and toluene (C7H8) compounds from an aqueous solution employing pervaporation (PV). Two distinct mathematical models, namely the universal quasi-chemical (UNIQUAC) model and the conventional driving force model, were formulated to replicate the intricate transport mechanisms of both organic solvent and water across these membranes. These models were instrumental in projecting the membrane's performance across diverse operational scenarios. The anticipated results were rigorously compared with experimental data to validate the projected outcomes for non-ideal volatile organic compounds (VOCs)-water systems within the membrane. …

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Carbon Fiber Cloth Performance Improvement Via Hybrid Materials (Fe2o3, Feco2o4, And Conducting Polymer) Addition For Energy Storage Applications, Abeer Radhi, Sami Jafar Al-Rubaiey, Shaymaa Al-Rubaye Mar 2026

Carbon Fiber Cloth Performance Improvement Via Hybrid Materials (Fe2o3, Feco2o4, And Conducting Polymer) Addition For Energy Storage Applications, Abeer Radhi, Sami Jafar Al-Rubaiey, Shaymaa Al-Rubaye

Engineering and Technology Journal

Carbon fiber cloths (CFCs) are essential materials extensively studied and utilized in numerous applications, including supercapacitors (SCs), batteries, solar cells, and catalysis. CFC is gaining significant research attention as an inexpensive choice for (SC) electrode materials, mainly owing to its peculiar adaptability, which makes it suitable for conveyable or flexible devices. In fact, this characteristic is not easily attainable with other carbon-based matrices. However, bare CFC electrodes face difficulties concerning their capacitive performance because of numerous factors, including markedly little surface space, poor electrochemical efficacy, and limited porousness. In this way, these factors reduce their efficiency as supercapacitor electrodes. To …

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Investigating The Effect Of Various Parameters On The Yield Of Graphene Obtained Through Graphite Exfoliation Using Co2 Supercritical Fluid, Shahab Saeedi, Javad Sargolzaei Mar 2026

Investigating The Effect Of Various Parameters On The Yield Of Graphene Obtained Through Graphite Exfoliation Using Co2 Supercritical Fluid, Shahab Saeedi, Javad Sargolzaei

Engineering and Technology Journal

Due to its high penetration force and low viscosity, the Supercritical carbon dioxide (scCO2) can spread between the graphite layers, overcome van der Waals forces, and transform graphite into multilayer graphene. The results of the test plan with the Design Expert software and also the use of these results in the laboratory showed that the parameters of temperature, pressure, initial amount of graphite, addition of surfactant and solvent auxiliary, the duration of sample placement in the device, the duration of carbon dioxide gas release from the device, and the time and power of ultrasonic and centrifuge operations can accelerate the …

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A Review On Alginate-Nanoparticle As A Potential Tool For Managing Water Pollution, D. Lakshmi, K. Radha, Thahira Azeez, Shanmugam Munisamy Mar 2026

A Review On Alginate-Nanoparticle As A Potential Tool For Managing Water Pollution, D. Lakshmi, K. Radha, Thahira Azeez, Shanmugam Munisamy

Engineering and Technology Journal

Sustainable source-based hydrogels are now paid much importance for managing water pollution due to their distinctive chemical and physical properties like hydrophilicity, biocompatibility, viscoelasticity, superabsorbancy, softness, fluffiness, and biodegradability. Alginate-based hydrogels can incorporate much water due to their hydrophilic nature.Water pollution often changes groundwater, resulting in the inability to use it. Alginate-based gels remove pollutants through adsorption/desorption, transport, and other conventional techniques. Alginate-based hydrogels can incorporate much water due to their hydrophilic nature. Their composites have been demonstrated to control different water pollutants like inorganic, organic, and pathogenic microbes from various water streams in unique structural forms like a flat …

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