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Determination Of Impingement Cooling Fluid Temperature-Time Profile For Extracted Tiger-Nut Juice (Cyperus Esculentus) By Lumped Thermal Mass Analysis, Nwankwo, Azubuike, Onah Okechukwu, Egwuagu Onyekachi Mar 2026

Determination Of Impingement Cooling Fluid Temperature-Time Profile For Extracted Tiger-Nut Juice (Cyperus Esculentus) By Lumped Thermal Mass Analysis, Nwankwo, Azubuike, Onah Okechukwu, Egwuagu Onyekachi

Engineering and Technology Journal

Determination of Temperature-Time Profile by the Lumped thermal mass analysis (LTMA) method using Tiger-Nut Juice as the impinging fluid on the cooling system was carried out. With a stationary hot steel plate on a modified run-out table for the top surface controlled the accelerated cooling process. This was evaluated with pipe diameters of 10mm, 15mm, 30mm, 35mm, and 40mm by single jet Tiger-Nut Juice impinging fluid, impingement gaps of 115mm, 125mm, 135mm, 145mm, and 155mm, initial surface temperatures from 450oC – 410oC and at sub-cooled temperatures from 150oC–110oC. The analysis reveals a faster cooling rate for both diameters at an …

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Effects Of Magnetic Field On The Performance Of Solar Distillers: A Review Study, Karrar A. Hammoodi, Hayder Dhahad, Wissam H. ِAlawee, Z.M. Omara, Fadl Essa, A.S. Abdullah, M Amro Mar 2026

Effects Of Magnetic Field On The Performance Of Solar Distillers: A Review Study, Karrar A. Hammoodi, Hayder Dhahad, Wissam H. ِAlawee, Z.M. Omara, Fadl Essa, A.S. Abdullah, M Amro

Engineering and Technology Journal

Due to the rising demand for treated water, the enhancement of potable water yield technologies, such as traditional solar distillers, is a pressing concern. Solar desalination is one of the easiest techniques for producing fresh water from salt water. It has several benefits, not the least. It utilizes free solar energy. Moreover, it is a simple and inexpensive technique compared to other alternatives. They are, nevertheless, relatively inefficient devices. Many studies have been done to boost the daily output of solar stills by using many active strategies to produce a large amount of evaporation and condensation compared to a basic …

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Numerical And Experimental Investigation Of Heat Transfer Enhancement By Hybrid Nanofluid And Twisted Tape, Noor Hamza, Sattar Aljabair Mar 2026

Numerical And Experimental Investigation Of Heat Transfer Enhancement By Hybrid Nanofluid And Twisted Tape, Noor Hamza, Sattar Aljabair

Engineering and Technology Journal

This paper presents an experimental and numerical study to investigate the heat transfer enhancement in a horizontal circular tube using hybrid nanofluid (CuO, Al₂O₃/ distilled water) and fitted with twisted tape (typical twisted tape, with twist ratios (TR=9.2). Under fully developed turbulent flow and uniform heat flux conditions, the studied hybrid nanofluid concentrations are (=0.6, 1.22, and 1.8% by volume). The experimental test rig includes all the required instruments to study the heat transfer enhancement. All the tests were carried out with a Reynolds number range of 3560-8320 and uniform heat flux (13217.5 W/m². The twisted tape, manufactured from polylactic …

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Bearings Health Monitoring Based On Frequency-Domain Vibration Signals Analysis, Saja Jawad, Alaa Jaber Mar 2026

Bearings Health Monitoring Based On Frequency-Domain Vibration Signals Analysis, Saja Jawad, Alaa Jaber

Engineering and Technology Journal

Rotating machine health monitoring is critical for system safety, cost savings, and increased reliability. The need for a simple and accurate fault diagnosis method has led to the development of various monitoring techniques. They incorporate vibration, motor’s current signature, and acoustic emission signals analysis in condition monitoring. So, based on using vibration signal analysis, a test rig was built for bearing fault identification. The test rig replicates and investigates various bearing problems, such as those found in the inner and outer races. An accelerometer, type ADXL335, was interfaced to a data acquisition device (DAQ USB-6215) for collecting vibration signals under …

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Numerical Investigation Of Thermal-Hydraulic Performance Of Printed Circuit Heat Exchanger With Different Fin Shape Inserts, Ali Aljelawy, Amer Aldabbagh, Falah Hatem Mar 2026

Numerical Investigation Of Thermal-Hydraulic Performance Of Printed Circuit Heat Exchanger With Different Fin Shape Inserts, Ali Aljelawy, Amer Aldabbagh, Falah Hatem

Engineering and Technology Journal

The printed circuit heat exchanger is one of the most recent important heat exchangers, especially in the nuclear power plant and aerospace applications, due to its very compact geometry and small print foot. This paper presents a 3D numerical investigation of the thermo-hydraulic performance of PCHE with a new non-uniform channel design configuration. The new channel design consists of two different fins and shape inserts: the diamond and biconvex shapes. The influence of two design parameters on the heat exchanger performance was studied and optimized, the longitudinal and transverse pitch length (Pl) and (Pt). Air with constant properties as the …

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Heat Pipe Thermal Performance Analysis By Using Different Working Fluids, Ali Soud, Qusay Abdul Ghafoor, Akeel Nazzal Mar 2026

Heat Pipe Thermal Performance Analysis By Using Different Working Fluids, Ali Soud, Qusay Abdul Ghafoor, Akeel Nazzal

Engineering and Technology Journal

This study investigated the thermal performance of the heat pipe and conducted on the effects of working fluids with wick and vertical position. The experiments were conducted using a copper heat pipe with ) a 20.8( mm inner diameter, and the length of the evaporator, the condenser, and the adiabatic regions were 300 mm, 350 mm, and 300 mm, respectively. The working fluids selected were water, Methanol, Ethanol, and different binary mixtures (50: 50) %, (30: 70) %, and (70: 30) % mixing ratios. The filling ratio for all working fluids remained constant with the value of  50% of the …

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Epoxy-Nanoceramic Composites For 5g Antennas, Hasanain Altalebi, Alaa Atiyah, Saad Farid Mar 2026

Epoxy-Nanoceramic Composites For 5g Antennas, Hasanain Altalebi, Alaa Atiyah, Saad Farid

Engineering and Technology Journal

Epoxy–nanoceramic composites of BiVO4 (BVO), LaNbO4 (LNO), and Li6Mg7Ti3O16 (LMT) were prepared using the solvent mixing method. The ceramic nano-fillers volume fractions were (5, 8, 10, and 12%). X-ray diffraction (XRD) and Atomic Force Microscopy (AFM) were used to investigate the crystal structure and size distribution of nanoceramics, respectively. The dielectric constant and loss tangent were measured in the frequency range of (4-8) GHz. The measurement technique was the waveguide approach via a Vector Network analyzer (VNA). The effect of the volume fraction of ceramic fillers on the dielectric constant and loss tangent of the composites at 5.28 GHz (5G) …

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Investigation Of Compression And Hardness For Uhmwpe Bio-Composites As Internal Bone Plate Fixation, Tamara Kadhim, Jawad Oleiwi, Qahtan Hamad Mar 2026

Investigation Of Compression And Hardness For Uhmwpe Bio-Composites As Internal Bone Plate Fixation, Tamara Kadhim, Jawad Oleiwi, Qahtan Hamad

Engineering and Technology Journal

Bone plates are essential for bone fracture healing because they modify the biomechanical microenvironment at the fracture site to provide the necessary mechanical fixation for fracture fragments. This paper addresses the use of composite bone plates in healing long-bone fractures such as transverse fractures of the femur. However, stress shielding in the bone due to metal plates can be reduced by designing implants with Bio-composites that involve Ultra high molecular polyethylene reinforced (UHMWPE) with Nano hydroxyapatite (n-HA) and Nano titanium dioxide (n-TiO2) particles at different weight fraction (0,1.5,2.5,3.5and 4. 5%) and 5% of carbon and Kevlar fibers. FRIT spectrum was …

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Improving Fatigue Corrosion Resistance Of Turbine Blades Using Laser Processing, Zaman Abdulwahab, Sami Jafar, Sami Ajeel Mar 2026

Improving Fatigue Corrosion Resistance Of Turbine Blades Using Laser Processing, Zaman Abdulwahab, Sami Jafar, Sami Ajeel

Engineering and Technology Journal

The present paper investigates the nanomaterial coatings effect on turbine blades by laser processing. The present paper explores the impact of laser cladding parameters on the corrosion behavior of the resulting surface. Powders of Inconel 600 were deposited on the steel substrate. The surface can be thought of as the most important part of every engineering component. Unlike the rest of the component's volume, the surface is exposed to wear and becomes the place where most cracks form and corrosion initiates. Corrosion is one of the most harmful problems affecting turbine blades. In the current investigation, coating nanomaterials, namely Inconel …

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An Investigation On The Effect Of Carbon Nanoparticles On The Properties Of Carbon Brushes, Ahmed Alasady, M. Mohammad, Suleyman Basturk Mar 2026

An Investigation On The Effect Of Carbon Nanoparticles On The Properties Of Carbon Brushes, Ahmed Alasady, M. Mohammad, Suleyman Basturk

Engineering and Technology Journal

The demand for carbon brushes with specific properties and improvements in production economics in recent years has led to increased interest in metal-graphite composites. Metal matrix composites are considered excellent materials to obtain properties superior to those of the constituent phases and meet the specific requirements of material application. In the present study, we suggested a new composite material by utilizing nanomaterials to improve the properties of metal-graphite composite material usually used as carbon brushes. This has been achieved by adding different percentages of 0.1-0.5wt % of carbon nanotubes, carbon nanospheres, or both to the metal matrix composite. The samples …

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Nanocatalyst For The Degradation Of Plastic Waste To Produce Paints, Shams Almutalabi, Mohammed Alzuhairi, F. Hashim Mar 2026

Nanocatalyst For The Degradation Of Plastic Waste To Produce Paints, Shams Almutalabi, Mohammed Alzuhairi, F. Hashim

Engineering and Technology Journal

Recycling consumed commercial polymers is considered a highly important issue that chemists and engineers must take care of to develop the proper recycling techniques. The main objective of this study is to find a radical solution to the problems of plastic waste by recycling plastic waste (water bottles) and studying the effect of the produced Degraded Polyethylene Terephthalate (DPET) on the properties of paints. DEPT was added in six quantities to the paint mixture (1, 3, 4, 5, 7, and 14 grams). The paints were evaluated using various tests, including scanning electron microscopy (SEM), viscosity, adhesion, brightness, color, ultraviolet reflectance, …

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Effect Of Adding Mgo On Microstructure Of Zirconia Toughened Alumina (Zta) Composite For Medical Applications, Alaa Taeh, Farhad Othman, Alla Abdul-Hameed Mar 2026

Effect Of Adding Mgo On Microstructure Of Zirconia Toughened Alumina (Zta) Composite For Medical Applications, Alaa Taeh, Farhad Othman, Alla Abdul-Hameed

Engineering and Technology Journal

Zirconia toughened alumina (Biolox delta) is a new-generation ceramic with four times the strength of alumina alone, used in artificial joints. The composite ZTA, consisting of 82 wt. %Al2O3, 17 wt. % ZrO2, 0.5 wt. % Cr2O3, and 0.5 wt. % SrO, was made using the sol-gel process, starting with salts. To investigate the effects of MgO on the ZTA microstructure, two concentrations (0.25 and 0.5 wt. %) of MgO were added to biolox during gelation to study the ZTA microstructure. Powders were sintered in the air for 2 hrs. at 1450 ºC. X-ray diffraction (XRD), scanning electron microscopy (SEM), …

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The Effect Of Infill Pattern On Tensile Strength Of Pla Material In Fused Deposition Modeling (Fdm) Process, Maria Jasim, Tahseen Abbas, Abdullah Huayier Mar 2026

The Effect Of Infill Pattern On Tensile Strength Of Pla Material In Fused Deposition Modeling (Fdm) Process, Maria Jasim, Tahseen Abbas, Abdullah Huayier

Engineering and Technology Journal

Fused deposition modeling (FDM) is an additive manufacturing (AM) process often used to build geometrically complex prototypes and parts. It is becoming more popular since it improves products by eliminating the need for high-priced equipment. Materials, printing methods, and printing variables all impact the mechanical characteristics of printed items. The process parameters of FDM affect the parts' quality and functionality. This study examines the influence of different infill patterns on test specimens made of polylactic acid (PLA) tensile strength. Total of 10 different infill patterns (IPs): Grid, Lines, Triangles, Tri-Hexagon, Cubic, Gyroid, Zig-zag, Concentric, Octet, and Cubic subdivision were taken …

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The Effect Of Ceo2 Addition On Transformation Temperatures And Wear Resistance Of Cu-Al-Ni Shape Memory Alloys, Dina Hammadi, Raad Ahmed Adnan, Mohammed Al-Sarraf Mar 2026

The Effect Of Ceo2 Addition On Transformation Temperatures And Wear Resistance Of Cu-Al-Ni Shape Memory Alloys, Dina Hammadi, Raad Ahmed Adnan, Mohammed Al-Sarraf

Engineering and Technology Journal

SMAs can switch from one crystallographic structure to another in response to temperature or stress stimuli. When SMAs are exposed to mechanical cyclic stress, they can absorb and discharge mechanical energy by experiencing a reversible hysteretic shape change. SMAs are widely used for sensing, actuation, impact absorption, and vibration damping. This work studied the effect of  CeO2 addition on the transformation temperature and wear resistance of Cu-Al-Ni SMAs. WhereCeO2 was added at different percent’s 0.5, 1, and 3 wt% to the base alloy, followed by casting and homogenization at 900oC. Some tests were carried out: Differential scanning calorimeter, Optical Microscope, …

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Investigating The Effect Of Different Parameters On Physical Properties Of Metakaolin-Based Geopolymers, Ahmed Abed Al-Jabar, Hanna Al-Kaisy, Sarmad Ibrahim Mar 2026

Investigating The Effect Of Different Parameters On Physical Properties Of Metakaolin-Based Geopolymers, Ahmed Abed Al-Jabar, Hanna Al-Kaisy, Sarmad Ibrahim

Engineering and Technology Journal

Recently, geopolymers have received widespread attention due to their ability to completely replace ordinary cement with better efficiency, lower cost, and less damage to the climatic environment. This paper aimed to prepare MK-based geopolymer cement at ambient temperature with different alkaline activators and processing parameters. XRD, PSA, DTA-TGA, SEM, and other techniques have characterized the prepared samples. ANOVA test was employed to identify the main effect of the processing parameters. Results showed that the incorporation of potassium ions has a negative effect on the physical properties of GP, in which the presence of such ions tends to decrease the density …

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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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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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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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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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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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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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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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