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The Possibility Of Producing An Eco-Friendly Refractory Concrete, Whab Abd, Mohammed Salman, Shatha Hasan Mar 2026

The Possibility Of Producing An Eco-Friendly Refractory Concrete, Whab Abd, Mohammed Salman, Shatha Hasan

Engineering and Technology Journal

The quantity of waste generated during construction and demolition keeps rising annually. Refractory bricks are wastes that have a detrimental effect on the environment. This paper investigates the reuse of refractory brick wastes to create environmentally friendly refractory concrete. To accomplish this goal, two percentages 10 and 25% of alumina cement will be substituted for bauxite powder, and alumina brick as the aggregate will be used instead of the natural aggregates. For each of the six types, a mix of refractory concrete (RFC), 14% water content, and a 1:3 cement/ aggregate ratio. The cast samples were stored at laboratory temperature …

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Clay Barriers Performance In Landfills: A Review., Kawther Al-Soudany, Mohammed Fattah, Falah Rahil Mar 2026

Clay Barriers Performance In Landfills: A Review., Kawther Al-Soudany, Mohammed Fattah, Falah Rahil

Engineering and Technology Journal

Clay barriers have garnered much interest in environmental engineering because they successfully reduce various ecological dangers, including groundwater contamination, the migration of leachate from landfills, and waste disposal in landfills. This review paper aims to provide a comprehensive analysis of the features, uses, and performance of clay barriers in various environmental conditions. The problem this review paper addresses is the dangers of waste disposal sites, which emphasizes landfills' harm to the ecosystem and explains why natural clays are often employed as barriers surrounding landfills to keep out pollution. The paper aims to provide an update on essential subjects about barrier …

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Slenderness Effect On The Behavior Of Composite Rc Columns Under Eccentric Loads, Zaynab Mohammed, Bassman Muhammad, Ali Resheq Mar 2026

Slenderness Effect On The Behavior Of Composite Rc Columns Under Eccentric Loads, Zaynab Mohammed, Bassman Muhammad, Ali Resheq

Engineering and Technology Journal

The structural performance of reinforced concrete (RC) columns plays a pivotal role in ensuring the safety and stability of buildings and infrastructure. In structural engineering, the quest for optimizing the design and behavior of RC columns has been a persistent pursuit. This research is focused on the columns having a “large” height that the secondary bending moments induced will affect the behavior of the RC column element. Therefore, one critical aspect that has garnered considerable attention is the influence of slenderness on the behavior of these columns, particularly when subjected to eccentric loading. As structures become taller and larger, slenderness …

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Analysis Of Prestressed Concrete Beams Experimentally Utilizing Steel Strands And Cfrp Bars, Ahmed Edan, Wael Abdulsahib Mar 2026

Analysis Of Prestressed Concrete Beams Experimentally Utilizing Steel Strands And Cfrp Bars, Ahmed Edan, Wael Abdulsahib

Engineering and Technology Journal

This research seeks to improve the performance behavior of reinforced concrete (RC) beams by examining their load-deflection diagrams using ordinary and prestressed carbon fiber-reinforced polymer (CFRP) bars in place of standard steel reinforcement instead. Using CFRP bars as prestressed tendons to replace the bottom steel rebars, eight 1800-mm long RC beams with a 200 mm×300 mm cross-section were evaluated and split into three groups, evaluating critical loading phases (i.e., cracked, ultimate, and mid-span deflection). Relative to the reference beam, beams reinforced with CFRP had far higher load-carrying capacities and ductility. One beam, reinforced with regular CFRP bars, exhibited a mid-span …

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Mechanical And Thermal Performance Of Engineered Cementitious Composite Concrete Produced By Using Polyvinyl Alcohol Fibers, Harith Al-Masraf, Tareq Al-Attar, Qais Freyyah Mar 2026

Mechanical And Thermal Performance Of Engineered Cementitious Composite Concrete Produced By Using Polyvinyl Alcohol Fibers, Harith Al-Masraf, Tareq Al-Attar, Qais Freyyah

Engineering and Technology Journal

The inclusion of polyvinyl alcohol fiber (PVA) into an engineered cementitious composite (ECC) material is essential to impart mechanical and thermal properties, in addition to the enhancement of porosity and microstructural properties. Therefore, this improvement can be achieved by utilizing four different percentages of fiber (0.5, 1, 1.5, 2)%, replaced by volume. Five mixes of (PVA-ECC) of M25 grade strength were produced and tested at three different ages (7, 28, and 90) days. Because of the more porous structure of (PVA-ECC), the results demonstrated that adding 2% by weight of (PVA) fiber to (PVA-ECC) dramatically lowered its thermal conductivity by …

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A Study On Quantum-Sized Ag2o Nanostructures: The Effect Of Chemical Interaction Time Before Deposition Using The Cbd Method, Evan Salim, Muntadher Awayiz, Makram Fakhri, Motahher Qaeed, Subash Gopinath Mar 2026

A Study On Quantum-Sized Ag2o Nanostructures: The Effect Of Chemical Interaction Time Before Deposition Using The Cbd Method, Evan Salim, Muntadher Awayiz, Makram Fakhri, Motahher Qaeed, Subash Gopinath

Engineering and Technology Journal

Ag2O quantum dots highly versatile promising a wide range of applications from energy conversion to biomedicine making them an important area of research and development in nanotechnology. The tunibilty of the bandgab, make them highly suitable for optoelectronics device, LED, solar cell, were the band gab can be adjested by controlling the size of nanoparticles leading to different light absorbtion and emission properties. In this work, uniform and smooth quantum-sized silver oxide (Ag2O) nano-films were chemically prepared on a glass substrate using chemical bath deposition method. The study investigated the impact of interaction time before the deposition process, where the …

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Enhancement Of Mechanical Properties In Unsaturated Polyester Via Reinforcement With Olive Leaf Particles, Eman Ibraheem, Waleed Bdaiwi Mar 2026

Enhancement Of Mechanical Properties In Unsaturated Polyester Via Reinforcement With Olive Leaf Particles, Eman Ibraheem, Waleed Bdaiwi

Engineering and Technology Journal

The use of olive leaf powder (OLP) as a filler material in unsaturated polyester composites brings a new avenue for the development of mechanical and thermal properties. The present work focuses on the impact of the relative proportions of OLP ranging from (0, 5, 10, 15, 20, and 25%) on the structural, electrical, and thermal properties of the composites.The specimens were prepared through the hand lay molding process, and the hardness strength, impact strength as well as compressive strength examination were conducted.These findings suggest that the characteristics of these composites improve as the content of OLP increases.The maximum impact strength …

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Synthesis And Characterization Of Nickel Doped Ternary Oxide Thin Film As Electrode Materials For Supercapacitor Application, Cissan Sylvanus, Jemima Ogwo, Sylvanus Isaac Mar 2026

Synthesis And Characterization Of Nickel Doped Ternary Oxide Thin Film As Electrode Materials For Supercapacitor Application, Cissan Sylvanus, Jemima Ogwo, Sylvanus Isaac

Engineering and Technology Journal

The over-dependence on fossil fuels for energy generation, especially in developing countries like Nigeria, is a major setback to the economy. There is a hike in its price, hence the need to commercialize a renewable form of energy such as solar energy. Solar energy's intermittent nature is a barrier, requiring an efficient, affordable, clean energy storage mechanism such as a supercapacitor. Electrodes are a supercapacitor's basic components, and optimizing an electrode material leads to wide electrochemical applications. In this study, Ni-doped  thin films were synthesized by electrochemical deposition, and the optical, morphological, and electrochemical properties were investigated through different characterization …

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Synthesized Of Gallium Nitride/Psi Nano Thin Films Using 532 Nm Wavelength By Pulsed Laser Deposition Technique, Abeer Abbas, Ali Alwahib, Makram Fakhri, Subash C. B. Gopinath, U. Hashim Mar 2026

Synthesized Of Gallium Nitride/Psi Nano Thin Films Using 532 Nm Wavelength By Pulsed Laser Deposition Technique, Abeer Abbas, Ali Alwahib, Makram Fakhri, Subash C. B. Gopinath, U. Hashim

Engineering and Technology Journal

The porous silicon (PSi) substrate was accurately synthesized using photoelectrochemical etching. A Nanofilm gallium nitride (GaN) was then precisely deposited on this PSi substrate using pulsed laser deposition (PLD). The x-ray diffraction (XRD) investigation revealed the GaN layer's distinct crystalline structure along the (002) plane, with a precise crystallite size of 21.57 nm. This precision in the deposition process enhanced both the surface morphology and film quality. In the atomic force microscope (AFM), oval particles were evenly distributed across the entire surface, and the RMS of the surface was 27 nm with a 20.63 nm surface roughness. A field emission …

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Effects Of Dy2o3 Doping On Physical And Mechanical Characteristics Of B2o3-Teo2-Bao Glass, Saba Hathot, Balqees Al Dabbagh, Haydar Aboud Mar 2026

Effects Of Dy2o3 Doping On Physical And Mechanical Characteristics Of B2o3-Teo2-Bao Glass, Saba Hathot, Balqees Al Dabbagh, Haydar Aboud

Engineering and Technology Journal

A new oxide glass host of the form (50-x) B2O3-25TeO2-25BaO-xDy2O3 (where x was varied from 0 to 1.25 mol%) was prepared using the conventional melt-cast quenching method. The study investigated how the glasses' structural, physical, and elastic properties were affected by varying amounts of Dy2O3. The XRD patterns of the samples indicated that they possessed an amorphous nature. FTIR spectrum displayed the vibration mode of trigonal and bipyramidal units like TeO3, TeO4, BO4, and BO3 together with Te-O-Te and Te-O linkages, indicating bridging oxygen (BO). The observed increase in the density (from 4.535 - 4.772 gm.cm-3) was ascribed to the …

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Utilizing Remote Sensing And Aerogeophysical Data For Spatial Decision Support System For Optimal Gold Mineralization Site Identification In North-Central Nigeria, Abdullahi S., Ejepu S. Mar 2026

Utilizing Remote Sensing And Aerogeophysical Data For Spatial Decision Support System For Optimal Gold Mineralization Site Identification In North-Central Nigeria, Abdullahi S., Ejepu S.

Engineering and Technology Journal

This study presents a comprehensive investigation utilizing remote sensing data and aerogeophysical datasets to identify potential economic gold mineralization sites in Zungeru, North-Central Nigeria. The research objectives include understanding the structural setting, mapping lithologic contacts, and detecting hydrothermally altered zones. Spatial suitability analysis was conducted on processed datasets. Feature-Oriented Principal Component Analysis (Crosta approach) was applied to selected Landsat 8 OLI imagery bands for mapping hydroxyl and iron oxide alterations. Additionally, regional topographic lineaments were mapped using SRTM DEM, and subsurface lineaments were identified using aeromagnetic data. Interpretation of the aeromagnetic data revealed complex anomalies associated with various structural characteristics, …

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Optimal Operational Conditions Of Pla/Pbat Mixed Matrix Membrane For The Treatment Of Oily Wastewater, Maryam Ghadhban, Khalid Rashid, Adnan Abdulrazak, Hicham Meskher, Yacine Benguerba, Emad Yousif Al-Sarraj, Qusay Alsalhy Mar 2026

Optimal Operational Conditions Of Pla/Pbat Mixed Matrix Membrane For The Treatment Of Oily Wastewater, Maryam Ghadhban, Khalid Rashid, Adnan Abdulrazak, Hicham Meskher, Yacine Benguerba, Emad Yousif Al-Sarraj, Qusay Alsalhy

Engineering and Technology Journal

This study aims to optimize the operational variables influencing the incorporation of Hesperidin nanoparticles (HSP NPs) into poly(lactic acid)/poly(butylene adipate-co-terephthalate) (PLA/PBAT) for manufacturing mixed matrix membranes (MMMs) for oily wastewater treatment. An optimization method was employed to determine the optimal values for key process factors to achieve specific flux and rejection rates exceeding required levels. Statistical techniques such as response surface methodology (RSM) and analysis of variance (ANOVA) were used to enhance performance on a larger scale. This research investigated the impact of operating parameters on the flux and oil rejection of PLA/PBAT/HSP membranes across all samples. The variables studied …

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Applications Of Artificial Intelligence In Nanotechnology, Shahad Eabd Alrida, Ola Obed, Elaf Taha, Thamer Abdullah, Mustafa Hathal, Viola Somogyi Mar 2026

Applications Of Artificial Intelligence In Nanotechnology, Shahad Eabd Alrida, Ola Obed, Elaf Taha, Thamer Abdullah, Mustafa Hathal, Viola Somogyi

Engineering and Technology Journal

Artificial intelligence (AI) is emerging as a prominent technological advancement. It is the act of replicating human intelligence for many purposes. In contrast to conventional methodologies, artificial intelligence (AI) is undergoing tremendous advancements. The present state of artificial intelligence (AI) technology enables them to effectively address numerous intricate difficulties with proficiency comparable to a human's. The significance of advancements in AI is particularly evident in machine learning, where the techniques and algorithms are effectively applied to address many problems, including those in nanotechnology. In contemporary nanotechnology, it is crucial to expedite the search for the most favorable synthesis parameters while …

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Impact Of Surface-Modified Silica And Magnesium Oxide Nanoparticles On The Flow Behaviour Of East Baghdad Crude Oil And Emulsion, Mohammed Nasera, Asawer Alwasiti, Riyadh Almukhtar, Mazin Shibeeb Mar 2026

Impact Of Surface-Modified Silica And Magnesium Oxide Nanoparticles On The Flow Behaviour Of East Baghdad Crude Oil And Emulsion, Mohammed Nasera, Asawer Alwasiti, Riyadh Almukhtar, Mazin Shibeeb

Engineering and Technology Journal

The transportation of crude oil naturally, including emulsion from the wellhead to the processing facility, presents a challenge in the oil industry, particularly as wells age and the production of associated water increases. To improve the flowability of the emulsified oil, traditional methods for reducing the viscosity, such as dilution and heating, are costly and energy-intensive. However, nanotechnology offers a potential solution to improve flowability and crude oil behavior. This paper examines how adding 3% wt of surface-modified silicon dioxide (SiO2) and magnesium oxide (MgO) nanoparticles impacts the flow properties of an emulsion containing East Baghdad crude oil. The investigation …

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A Model Predictive Control-Based Statcom For Weak Grid Voltage Enhancement, Adeola Balogun, Emeka Esenwa, Sunday Adetona, Ayobami Olajube, Ayokunle Awelewa, Frank Okafor Mar 2026

A Model Predictive Control-Based Statcom For Weak Grid Voltage Enhancement, Adeola Balogun, Emeka Esenwa, Sunday Adetona, Ayobami Olajube, Ayokunle Awelewa, Frank Okafor

Engineering and Technology Journal

This paper presents a model predictive control (MPC) technique for the control of reactive power flow from a static synchronous compensator (STATCOM) into a weak power system network. The MPC strategy enables the STATCOM to mitigate weak phase voltage magnitudes in a distribution grid. The weak voltage magnitudes usually emanate from large inductive loads connected to the grid’s point of common coupling (PCC). The MPC utilizes a finite control set of voltage vectors to minimize a cost function, which reduces the errors between set references and the corresponding predicted variables. The references in the cost function are set by two …

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Control System Design Of A Pin-On-Disc Wear Machine Using Plc, Huda Mohammed, Khansaa Salman Abed, Ahmed Reja Mar 2026

Control System Design Of A Pin-On-Disc Wear Machine Using Plc, Huda Mohammed, Khansaa Salman Abed, Ahmed Reja

Engineering and Technology Journal

This study presents the design and implementation of a control system for a Pin-on-Disc wear testing machine using a Programmable Logic Controller (PLC). The novel approach employed involves adjusting the applied pressure on the pin, rather than the conventional method of altering weights, to evaluate the impact of varying loads on the wear rate. This method enhanced the accuracy of wear results by 25% compared to traditional techniques. The control system was developed and implemented with a Human-Machine Interface (HMI) that interacts with the PLC to control and monitor key parameters, including applied load, temperature, rotational speed, sliding time, and …

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Modeling And Control Of A High-Quality Electro-Hydraulic Actuator Driven Via An Induction Motor Under Intelligent Indirect Vector Control, Aws Hassan, Jamal Mohammed, Walaa Hashim Mar 2026

Modeling And Control Of A High-Quality Electro-Hydraulic Actuator Driven Via An Induction Motor Under Intelligent Indirect Vector Control, Aws Hassan, Jamal Mohammed, Walaa Hashim

Engineering and Technology Journal

Due to its excellent energy efficiency and broad speed range, the variable-speed electro-hydraulic drive is an appealing driving principle in many contemporary industrial applications. A primary control of linear motion is via a variable-speed electric motor driving a hydraulic actuator via a constant displacement pump. One of the most commonly used controllers for the speed control of induction motors is the Proportional Integral (PI) type. However, the traditional PI controller has some disadvantages, such as the high starting overshoot, sensitivity to controller gains, and sluggish response due to sudden disturbance. An intelligent controller based on PI Fuzzy logic set theory …

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Anfis Control Of Four-Quadrant Dc/Dc Chopper For Wireless Ev Charging, Hawraa Hameed, Hosham Anead, Khalid Sultan Mar 2026

Anfis Control Of Four-Quadrant Dc/Dc Chopper For Wireless Ev Charging, Hawraa Hameed, Hosham Anead, Khalid Sultan

Engineering and Technology Journal

Wireless charging of electric vehicles (EVs) poses issues like power ripples that reduce battery lifetime. This study proposes a four-quadrant DC/DC chopper controlled by an adaptive neuro-fuzzy controller (ANFIS) for wireless EV charging. The system is modeled and simulated in Matlab/Simulink. Compared to a PI-PSO controller, the proposed ANFIS control reduced the ripple factor in power over half to about 0.7% and optimized stability and efficiency. Though settling time increased, the difference in rise time was negligible. Future work will improve dynamic response. The ANFIS-controlled DC/DC chopper enhances wireless charging performance with minimal power ripples for safe, efficient EV power …

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Survey Of Near-Field Wireless Communication And Power Transfer For Biomedical Implants, Hala Abduljaleel, Saad Mutashar, Sadik Gharghan Mar 2026

Survey Of Near-Field Wireless Communication And Power Transfer For Biomedical Implants, Hala Abduljaleel, Saad Mutashar, Sadik Gharghan

Engineering and Technology Journal

Bio-implanted medical devices with electronic components play a crucial role due to their effectiveness in monitoring and diagnosing diseases, enhancing patient comfort, and ensuring safety. Recently, significant efforts have been conducted to develop implantable and wireless telemetric biomedical systems. Topics such as appropriate near-field wireless communication design, power use, monitoring devices, high power transfer efficiency from external to internal parts (implanted), high communication rates, and the need for low energy consumption all significantly influence the advancement of implantable systems. In this survey, a comprehensive examination is undertaken on diverse subjects associated with near-field wireless power transfer (WPT)-based biomedical applications. The …

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Realization Of An All-Optical D And T Flip Flops With Nano-Structure Using Hybrid Plasmonic Waveguides, Saif Abdulwahid, Ahmed Wadday, Sinan Abdul Sattar Mar 2026

Realization Of An All-Optical D And T Flip Flops With Nano-Structure Using Hybrid Plasmonic Waveguides, Saif Abdulwahid, Ahmed Wadday, Sinan Abdul Sattar

Engineering and Technology Journal

Surface waves are electromagnetic waves propagating along the interface between a metal and an insulator. Surface waves break the diffraction limits and enable light to propagate in sub-wavelength structures. That opens the field of electro-opto devices. The main drawbacks of surface waves that move in the Plasmonic Waveguides (PWs) are propagation loss and low light confinement. Using a combination of the plasmonic waveguide and a Dielectric Waveguide (DW), the defect of the surface waves can be enhanced, and the Hybrid Plasmonic waveguide (HPW) is introduced. In this research, the design of an all-optical flip flop with 400 nm × 400 …

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Effect Of The Material Properties Of The Rotor-Disc On The Performance Of Eddy Current Braking Systems, Ahmed Salman, Jamal Mohammed, Farag Mohammed Mar 2026

Effect Of The Material Properties Of The Rotor-Disc On The Performance Of Eddy Current Braking Systems, Ahmed Salman, Jamal Mohammed, Farag Mohammed

Engineering and Technology Journal

Failure of traditional brakes occurs due to raised temperatures and the formation of structural fractures caused by wear and strain. For resolving mechanical brake problems, consider employing contactless braking technology, also known as eddy current braking, which offers a smoother deceleration. This research aims to assess the suitability of multi-materials for designing brake discs (ECBs) for use in automobiles. The choice of material for the rotor disc is crucial in the design of eddy current brakes. Different material factors impact the performance of these brakes. Therefore, there is a need for a material that possesses superior mechanical properties, high electrical …

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Effect Of Nano And Nanocomposite Coating On Pool Boiling Heat Transfer, Ali Al-Obaidy, Ekhlas Fayyadh, Amer Al-Dabagh Mar 2026

Effect Of Nano And Nanocomposite Coating On Pool Boiling Heat Transfer, Ali Al-Obaidy, Ekhlas Fayyadh, Amer Al-Dabagh

Engineering and Technology Journal

High heat generation is the main problem that sophisticated electronic devices can suffer. The pool boiling process can offer an excellent heat dispassion at constant temperatures. Therefore, it is one of the most powerful cooling processes used in nuclear power plants, data centers, air conditioning, etc. Because of that, enhancing pool boiling has become a goal of many recent investigations. The current paper presents an experimental study to evaluate the effect of nano and nanocomposite coating on the performance of pool boiling of deionized water under atmospheric pressure. Four surfaces made of copper were used in this study: smooth, CNT …

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A Comprehensive Review Of The Hybrid Heating Systems Consisting Of Heat Pumps And Solar Collectors For Hot Water And Space Heating Application, Ghazwan Mohammed, Ahmed Saleh, Abdul Hadi Khalifa Mar 2026

A Comprehensive Review Of The Hybrid Heating Systems Consisting Of Heat Pumps And Solar Collectors For Hot Water And Space Heating Application, Ghazwan Mohammed, Ahmed Saleh, Abdul Hadi Khalifa

Engineering and Technology Journal

A solar-assisted heat pump system is a hybrid system that integrates a solar collector and a heat pump, serving diverse functions such as space conditioning, drying, and generating heated water. The system's classification is based on the connection configuration of the solar collector and heat pump, which may involve a serial, parallel, or dual arrangement. Solar-assisted heat pump systems enhance output efficiency by harnessing solar energy in various heating modes, with the effectiveness contingent on the prevailing environmental conditions. As stated above, these systems are essential in lowering power consumption and reducing emissions. This study comprehensively assesses the research and …

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Parametric Analysis For Performance And Emissions Of Gasoline Direct Injection Engine Using Mathematical Modelling, Omar Yousif, Mahmoud Mashkour Mar 2026

Parametric Analysis For Performance And Emissions Of Gasoline Direct Injection Engine Using Mathematical Modelling, Omar Yousif, Mahmoud Mashkour

Engineering and Technology Journal

The study aims to estimate the performance and emissions of a gasoline direct injection (GDI) engine by analyzing parameters such as engine speed between 2000 and 6000 rpm, compression ratio (CR) between 9 and 13, and the start of ignition between 140 and 180 deg. A thermodynamic mathematical model was developed using MATLAB to simulate the two-zone combustion process of a four-cylinder, four-stroke direct injection engine operating on gasoline at specified parameters. The results showed that parameter variations greatly affect the performance and emissions of the GDI engine. The highest values of in-cylinder pressure, burned and unburned temperature, cumulative engine …

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Small-Scale Thermoelectric Incinerator Prototype For Sustainable Waste Management And Power Generation, Yepy Sofi’I, Sudarman Sudarman, Roro Hendaryati, Suwarsono Suwarsono, Andinusa Rahmandhika, Rizki Hidayatulloh, Muhammad Budiman, Galuh As'adi, Ramdhan Zaroby, Willy Nugroho Mar 2026

Small-Scale Thermoelectric Incinerator Prototype For Sustainable Waste Management And Power Generation, Yepy Sofi’I, Sudarman Sudarman, Roro Hendaryati, Suwarsono Suwarsono, Andinusa Rahmandhika, Rizki Hidayatulloh, Muhammad Budiman, Galuh As'adi, Ramdhan Zaroby, Willy Nugroho

Engineering and Technology Journal

Indonesia faces a significant challenge in managing its waste effectively. Conventional incineration, while reducing waste volume, raises environmental concerns due to emissions. This research explores a novel approach by developing a thermoelectric incinerator prototype with a 10 kg/hour capacity. The incinerator aims to convert heat generated during waste incineration into electrical energy, offering an environmentally friendly alternative for waste management. The research involved designing and modeling the incinerator using Ansys Fluent 2021 R1 software. Incineration tests were conducted experimentally using 5 kg organic and 5 kg inorganic waste for 30 minutes. Critical parameters such as temperature distribution, moisture content, calorific …

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Exploring The Impact Resistance Of Hybrid Sandwich Composite Body Armor Through Experimental Analysis, Waad Khalaf, Mohsin Hamzah Mar 2026

Exploring The Impact Resistance Of Hybrid Sandwich Composite Body Armor Through Experimental Analysis, Waad Khalaf, Mohsin Hamzah

Engineering and Technology Journal

Hybrid composite sandwich structures, known for remarkable energy absorption, rigidity, and strength, are emerging as a preferred choice for fortifying structures against a diverse range of firearms and artillery. Despite their higher density, these panels demonstrate commendable qualities, making them optimal for armored vehicles and body armor. Numerous structural options compete for recognition as effective ballistic shields in today's context.  In this study, three sample configurations were rigorously tested for ballistic impact using a 7.62×39 mm bullet. The first sample (S1) comprised silicon carbide ceramic tiles (SiC), Kevlar fiber, and carbon fiber in the face sheet, with an unfilled aluminum …

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Estimating The Wear Behavior Of Hdpe Composites Reinforced With Nano Alumina Fillers Using Taguchi Method, Orhan Abdullah Mar 2026

Estimating The Wear Behavior Of Hdpe Composites Reinforced With Nano Alumina Fillers Using Taguchi Method, Orhan Abdullah

Engineering and Technology Journal

High-density polyethylene (HDPE), like other polymers is important in many applications due to its unique properties like low cost, weight, and availability. Recently, HDPE reinforced with ceramic fillers was considered in biomedical applications, especially in fabricating joint/bone replacements. Therefore, these applications required high wear resistance materials to serve under specific conditions. In this work, an optimization with Taguchi method was considered to associate the influence of nano alumina fillers, normal applied load, and sliding time on the wear rate values for hip joint replacement applications. In the first step, a TEM test was conducted on the prepared composites to ensure …

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Modeling And Analysis Of Thermoelectric Atmospheric Water Generation In The Economic City Of Iraq, Ammar Al-Tajer, Wissam Alawee, Hayder Dhahad, Zakaria Omara Mar 2026

Modeling And Analysis Of Thermoelectric Atmospheric Water Generation In The Economic City Of Iraq, Ammar Al-Tajer, Wissam Alawee, Hayder Dhahad, Zakaria Omara

Engineering and Technology Journal

Atmospheric Water Generation assumes substantial significance as an innovative remedy for addressing water scarcity and augmenting water resilience. This technology facilitates water extraction directly from the atmosphere, presenting a sustainable and decentralized approach to water supply. The investigation into the feasibility of attaining the dew point temperature for a heatsink operating in the climatic conditions of Basra was conducted using Fluent 22.1 software. The minimum dew point temperature under extreme conditions was determined to be 10.52℃. A thermoelectric device was a primary component in cooling the moisture-laden air to produce water from atmospheric air. Simulations were executed using two complementary …

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Enhancing Performance Of Double-Slope Solar Stills Through Optimization Of Heat Addition Methods: A Comprehensive Analysis, Mariam Murad, Wissam Alawee, Hayder Dhahad, Z.M. Omara Mar 2026

Enhancing Performance Of Double-Slope Solar Stills Through Optimization Of Heat Addition Methods: A Comprehensive Analysis, Mariam Murad, Wissam Alawee, Hayder Dhahad, Z.M. Omara

Engineering and Technology Journal

This comprehensive research paper reviews the latest techniques to enhance the productivity of double-slope solar stills by providing quantitative data on key research outcomes. With the global water scarcity crisis and the need for effective desalination technology, this study focuses on solar-based desalination techniques and their specific application in double-slope solar stills. This paper offers a comprehensive and quantitative analysis of heat addition methods in double-slope solar stills by examining published research findings, providing valuable insights for researchers and practitioners. The study reveals significant improvements in productivity through various modifications. Evaporation enhancement, heat transfer enhancement, and condensation enhancement have proven …

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Characterization Of Alkaline Treated Raffia Palm Fibres As Reinforcement In Polymer Composite, Ipilakyaa Daniel, Tile Emmanuel, Nyior Bem, Gundu Terfa Mar 2026

Characterization Of Alkaline Treated Raffia Palm Fibres As Reinforcement In Polymer Composite, Ipilakyaa Daniel, Tile Emmanuel, Nyior Bem, Gundu Terfa

Engineering and Technology Journal

The characterization of raffia palm fibre (RPF) for reinforcement in polymer composite for specialized applications was studied. The fibres were treated with NaOH solution and subjected to a tensile strength test. The fibres were also subjected to spectroscopy using Fourier transform infrared (FTIR), energy dispersive x-ray fluorescence (EDXRF), and x-ray diffraction (XRD). The study found that the alkaline-treated RPF presented a tensile strength of 195 MPa and Young’s modulus of 91.76 MPa. The strain at maximum stress in the fibre was found to be 2.125%. FTIR spectra of treated raffia palm fibres revealed that the fibres are characterized by O-H …

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