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Articles 66751 - 66780 of 5156544
Full-Text Articles in Entire DC Network
Impact Of The Upfc On The Optimal Transmission Switching For Cutting Down Market Power Cost, Sunday Adetona, Makanjuola Adetola, Frank Okafor, Nwabueze Ubakanwa
Impact Of The Upfc On The Optimal Transmission Switching For Cutting Down Market Power Cost, Sunday Adetona, Makanjuola Adetola, Frank Okafor, Nwabueze Ubakanwa
Engineering and Technology Journal
The exercise of market power by the strategic generating companies (gencos) in the deregulated wholesale electricity market (WEM) should be mitigated, as it results in higher wholesale prices of electricity and a drop in competition in the WEM. Consequently, Optimal Transmission Switching (OTS) has been proposed as a means by which the System Operator in the WEM can use to mitigate it. It is also imperative that the effect of the Unified Power Flow Controller (UPFC) on reducing the cost due to the market power using OTS must be investigated. Therefore, this study used the Fast Voltage Stability Index (FVSI) …
Detection Of Arabic Sign Language By Machine Learning Techniques With Pca And Lda, Mosab Hassan, Atheer Sabri, Alaa Ali
Detection Of Arabic Sign Language By Machine Learning Techniques With Pca And Lda, Mosab Hassan, Atheer Sabri, Alaa Ali
Engineering and Technology Journal
People need a communication channel and a way to communicate with a person or group. Deaf people communicate with others through sign language. The remarkable and rapid development in image and video recognition systems has made researchers use this development to solve many problems, including sign language for the deaf, and reduce their suffering in communicating with ordinary people. This work aims to use and apply machine learning technology to build an automatic recognition system for Arabic Sign Language (ArSL). In this work, images of ArSL characters were recognized using four classification techniques (Naïve Bayes (NB), Decision Trees (DTs), and …
Performances Study Of Psk And Ask Modulation Technique Under Atmospheric Turbulence In Fso Communication System, Esraa Al – Gazzi, Ekbal Ali, Assel Mohammed
Performances Study Of Psk And Ask Modulation Technique Under Atmospheric Turbulence In Fso Communication System, Esraa Al – Gazzi, Ekbal Ali, Assel Mohammed
Engineering and Technology Journal
The performance and reliability of a free-space optical (FSO) communication system can be greatly increased using various methods. The primary goal of each technique is to reduce the effect of disturbances that lead to intensity or phase fluctuations in the system's receiver. Recent issues include increased data consumption and a crowded radio frequency spectrum, where free-space optical communication (FSOC) has changed the way people share information in a big way. In place of wired communication systems, it is possible to transport voice, video, and data effectively through air. High speed, cost savings, small buildings, low power consumption, energy economy, maximum …
Image Encryption Based On S-Box And 3d-Chaotic Maps And Secure Image Transmission Through Ofdm In Rayleigh Fading Channel, Jenan Namuq, Fadhil Hasan, Alaa Ali
Image Encryption Based On S-Box And 3d-Chaotic Maps And Secure Image Transmission Through Ofdm In Rayleigh Fading Channel, Jenan Namuq, Fadhil Hasan, Alaa Ali
Engineering and Technology Journal
Data security is vital if transferred over a wireless network or stored on a personal computer. The essential properties of chaos, such as initial state sensitivity and unpredictability, make it a crucial candidate for encryption applications. This paper proposes a 3D chaotic map and a cascaded S-Box that can be combined to get a high-efficiency and complex cryptographic algorithm. The first stage is ciphering using a 3D cat map, the second stage is an S-box based on a 3D Henon map, and the third stage is another ciphering stage using a 3D Henon map. This study combines various encryption techniques, …
Fpga Implementation Of Efficient Adaptive Filter Incorporating Systolic Architecture, Harith Thannoon, Ivan Hashim
Fpga Implementation Of Efficient Adaptive Filter Incorporating Systolic Architecture, Harith Thannoon, Ivan Hashim
Engineering and Technology Journal
This paper introduces an approach that capitalizes on the retimed delay concept to enhance adaptive filters' operational efficiency. In particular, it introduces an adaptive filter configuration with minimal critical path delay. The adaptive filters, namely Least Mean Square (LMS), Recursive Least Square (RLS), and Affine Projection (AP) have been meticulously designed through the utilization of the Xilinx System Generator (XSG). The approach is based on a systolic architecture, which aims to reduce the critical path delay by minimizing the number of processing elements, including adders and multipliers, in each iterative process. Notably, the critical path of the proposed filters has …
Lora Sensor Node Mounted On Drone For Monitoring Industrial Area Gas Pollution, Muthna Fadhil, Sadik Gharghan, Thamir Saeed
Lora Sensor Node Mounted On Drone For Monitoring Industrial Area Gas Pollution, Muthna Fadhil, Sadik Gharghan, Thamir Saeed
Engineering and Technology Journal
One of the biggest threats to human health is air pollution, which significantly influences people. Due to challenges like industrial and rural locations, where sensing frequently falls short of providing sufficient information about air quality, it is challenging to collect data close to pollution sources. Government-led statically deployed stationary monitors are typically used for air quality monitoring. However, many emissions that contribute to air pollution are erratic and unpredictable. A significant problem for environmental protection will be how to monitor air pollution emissions dynamically and efficiently. It can fulfill two objectives. The first is that if the Unmanned Aerial Vehicle …
Impact Of Acute Flight Training Stress On Cardiovascular Health, Toni Butler, Noah Robbins, Sophia Vaden, Bryan Hinton
Impact Of Acute Flight Training Stress On Cardiovascular Health, Toni Butler, Noah Robbins, Sophia Vaden, Bryan Hinton
Student Research Symposium (SRS)
Student pilots face a unique set of stressors that are a part of their flight training. These acute stressors can have immediate and long-term impacts on their physiological and psychological well-being. Using near-infrared spectroscopy (NIRS) to measure vascular endothelial function (a marker of cardiovascular health), this investigation will help us understand how the stressors involved in acute flight training affects the cardiovascular health of student pilots. We will test the hypothesis that acute flight training stress obtained from a single bout of flight training reduces cardiovascular function as shown by a reduced post-occlusive reactive hyperemic (PORH) response. Cardiovascular health will …
The Electrical And Mechanical Aspects Of Aluminum And Copper Resistance Spot Weld Joints, Marwah Fakhri, Ibtihal Mahmood, Ahmed Al-Mukhtar
The Electrical And Mechanical Aspects Of Aluminum And Copper Resistance Spot Weld Joints, Marwah Fakhri, Ibtihal Mahmood, Ahmed Al-Mukhtar
Engineering and Technology Journal
Resistance spot welding (RSW) is widely used in the automotive industry, particularly for copper-aluminum alloys in electric cars. RSW joint conductivity is crucial for electric vehicles. Welded parts may fracture due to tension, altering conductivity. The study examines resistance spot post-weld joint metallurgy and deformation-induced conductivity changes. The electric resistance of similar and dissimilar RSW joints was examined during tensile tests. Metallurgical tests for RSW joints revealed an increase in grain size from the base metal (BM) to the heat-affected zone (HAZ) and finally the fusion zone (FZ). Satisfactory shear tension strength results were obtained for dissimilar joints (Al-Cu) at …
Improving The Charging Rate And Energy Recovery Of Triplex Tube Heat Storage-Based Pcm With Mono/Hybrid Nanoparticles, Ibrahim Sadiq, Sattar Aljabair, Abdulhassan Karamallah
Improving The Charging Rate And Energy Recovery Of Triplex Tube Heat Storage-Based Pcm With Mono/Hybrid Nanoparticles, Ibrahim Sadiq, Sattar Aljabair, Abdulhassan Karamallah
Engineering and Technology Journal
Latent thermal energy storage systems are widely utilized to match the inequality between heat supply and demand. Despite these systems' wide range of uses in various applications, their high potential is limited by the slow charging rate. The target of this study is to augment the thermal performance of paraffin-based on triplex tube heat storage by dispersion of two different types of conductive mono nanoparticles (Al2O3, CuO) and hybrid Nano additives of various volume fractions (0.4, 0.8, 1.6, 3.2%) into paraffin wax. The experimental work involves measurements and preparation of the considered Nano-PCM. The enthalpy porosity model and finite volume …
Numerical Study Of The Effect Of Thermal Insulation And Window-To-Wall Ratio On Reducing The Thermal Loads Of The Residential Sector In Iraq, Abd Hussein, Ahmed Saleh, Hamdi Ahmed
Numerical Study Of The Effect Of Thermal Insulation And Window-To-Wall Ratio On Reducing The Thermal Loads Of The Residential Sector In Iraq, Abd Hussein, Ahmed Saleh, Hamdi Ahmed
Engineering and Technology Journal
The climate change that the world is witnessing has cast a greater shadow on the Middle East. Iraq, one of the region's countries, is experiencing harsh thermal conditions. With the increase in population growth in the country, there was a significant development in the housing sector, which exacerbated the thermal loads that the residential sector requires to overcome harsh weather conditions. This leads to increased energy consumption. To reduce this consumption and energy waste, a simulation study was conducted using the TRNSYS program to analyze the thermal behavior of a building whose walls consist of Gypsum, Juss, brick, and mortar, …
Analyzing Energy Performance And Assessing Dry Moisture Content Of Briquettes Through Numerical Investigations, Oluwaseyi Alabi, Timothy Adeyi, Sakiru Ekun
Analyzing Energy Performance And Assessing Dry Moisture Content Of Briquettes Through Numerical Investigations, Oluwaseyi Alabi, Timothy Adeyi, Sakiru Ekun
Engineering and Technology Journal
This study presents a comprehensive numerical investigation into the energy evaluation and determination of dry moisture content of briquettes, a vital aspect of renewable energy production. Utilizing advanced computational fluid dynamics (CFD) modeling and simulations, we explored key parameters impacting briquette combustion, such as moisture content, size, density, and temperature profiles. The research demonstrates that these factors significantly influence combustion behavior, with the CFD model accurately predicting mass loss curves and burnout times. The process was completed in 10 minutes, reaching a temperature of 300K and yielding gases consisting of CO2, CO, and H2O, while the devolatilization front was assumed …
Effect Of The Magnetic Field And Exhaust Gas Recirculation On The Performance And Emissions Of Biodiesel Engine Coated With Nanoceramics, Qusai Mahdi, Mahmoud Mashkour, Ibtihal Mahmoud
Effect Of The Magnetic Field And Exhaust Gas Recirculation On The Performance And Emissions Of Biodiesel Engine Coated With Nanoceramics, Qusai Mahdi, Mahmoud Mashkour, Ibtihal Mahmoud
Engineering and Technology Journal
This study investigates the influence of ceramic coating on diesel engine efficiency through comprehensive analysis. The investigation was conducted on a four-stroke Kirloskar TV1 diesel engine. The study further examined the effects of employing an 8000 Gauss magnetic field and exhaust gas recirculation on engine performance. The surfaces of the head of the cylinder, the piston, and both the inlet and exhaust valves are then covered with nano-ceramic materials. Atmospheric plasma spray-created nanostructured thermal barrier coatings (TBCs). The feeding powder type is 7% Y2O3-ZrO2 with a particle size of less than 100 nm yttria stabilized zirconia (YSZ) nano X (S4007) …
State-Of-The-Art Review Into Signal Processing And Artificial Intelligence-Based Approaches Applied In Gearbox Defect Diagnosis, Asaad Dubaish, Alaa Jaber
State-Of-The-Art Review Into Signal Processing And Artificial Intelligence-Based Approaches Applied In Gearbox Defect Diagnosis, Asaad Dubaish, Alaa Jaber
Engineering and Technology Journal
Various industrial applications, including rotating and reciprocating machinery, depend on gears. Therefore, a sudden breakdown of the gears could result in substantial financial losses. Due to this, extensive studies have focused on defect diagnosis. Both machinery maintenance decisions and preventive maintenance techniques have been aided by vibration analysis. An increased vibration is a warning sign that a machine is about to malfunction or break down. Observing and evaluating the machine's vibration pulses can identify the nature and extent of the issue and, as a result, predict when the machine will fail. The vibration signal may identify gearbox defects early on …
Enhancing Wind Tunnel Computational Simulations Of Finite Element Analysis Using Machine Learning-Based Algorithms, Luttfi Al-Haddad, Alaa Jaber, Latif Ibraheem, Sinan Al-Haddad, Naseem Ibrahim, Fawaz Abdulwahed
Enhancing Wind Tunnel Computational Simulations Of Finite Element Analysis Using Machine Learning-Based Algorithms, Luttfi Al-Haddad, Alaa Jaber, Latif Ibraheem, Sinan Al-Haddad, Naseem Ibrahim, Fawaz Abdulwahed
Engineering and Technology Journal
Wind tunnels are essential for examining aircraft model aerodynamics, accurately simulating real-world conditions, and enhancing design and performance evaluations. This study introduces a novel technique to improve the time and accuracy of stress distribution forecasts in wind tunnel simulations. This method combines Finite Element Analysis (FEA) with two regression models: Support Vector Machine (SVM) and k-Nearest Neighbors (kNN). The investigation begins with a thorough analysis of ANSYS fluent flow data, which reveals intricate fluid dynamics details within the wind tunnel. A comparative analysis of stress projections, supplemented by Root Mean Square Error (RMSE) metric, demonstrates the proposed methodology’s viability. High …
Investigating The Effect Of Electroplated Coatings On Single-Phase Fluid Flow And Heat Transfer In Microchannel, Hasan Hussein, Ekhlas Fayyadh, Moayed Hasan
Investigating The Effect Of Electroplated Coatings On Single-Phase Fluid Flow And Heat Transfer In Microchannel, Hasan Hussein, Ekhlas Fayyadh, Moayed Hasan
Engineering and Technology Journal
A significant heat flux affects the efficacy and durability of most equipment. Cooling these devices is the primary concern, prompting specialists to propose and investigate various solutions. For these applications, microchannels are regarded as a possibility. Experiments were conducted in this study to determine the effect of an electroplating coating on the characteristics of a single-phase flow. As the working fluid for the experiments, deionized water was used. During the investigations, a microchannel of 0.3mm width and 0.7mm depth with an average roughness of 18.64 nm was machined; the inlet temperature was maintained at 30°C, and the Reynolds number ranged …
Application Of Discrete Wavelet Transform For Condition Monitoring And Fault Detection In Wind Turbine Blades: An Experimental Study, Ahmed Ogaili, Mohsin Hamzah, Alaa Jaber, Ehsan Ghane
Application Of Discrete Wavelet Transform For Condition Monitoring And Fault Detection In Wind Turbine Blades: An Experimental Study, Ahmed Ogaili, Mohsin Hamzah, Alaa Jaber, Ehsan Ghane
Engineering and Technology Journal
Effective structural monitoring maximizes efficiency in wind turbines, a crucial renewable energy asset. Using advanced condition monitoring techniques is crucial for reliability. This experiment shows how to use DWT and FFT for wind turbine blade fault detection. DWT allowed for multiresolution analysis of vibration signals from a healthy and eroded lab-scale turbine blade under controlled wind speeds. A 5-level DWT decomposition identified frequency sub-bands with localized fault information. The FFT post-processing of level 5 approximation coefficients revealed precise modal frequency shifts between blade states. The healthy blade showed a dominant 16 Hz mode that matched operational dynamics. Erosion caused a …
Experimental Study Of The Double Pipe Heat Exchanger For Heat Transfer And Pressure Drop Characteristics Of The Grooved Tube, Natiq Fadhil, Amer Aldabbagh, Falah Hatem
Experimental Study Of The Double Pipe Heat Exchanger For Heat Transfer And Pressure Drop Characteristics Of The Grooved Tube, Natiq Fadhil, Amer Aldabbagh, Falah Hatem
Engineering and Technology Journal
Experiments are conducted to investigate the heat transfer and pressure drop characteristics of corrugated tubes and rod baffles in a shell-and-tube heat exchanger. One of the effective techniques to improve heat transfer is to use corrugated tubes. This article investigates rod baffles with varied corrugation depths and corrugated tubes for (1 start). In the heat exchanger's shell side, where a constant wall temperature was attained on the tube side, water was employed as the working fluid after being heated at the wall. Corrugation ratios (e/dh) of 0.1 and 0.13, pitch (p) of 10, 20, and 30mm, and two types (x/d) …
An Analytical Solution To Buckling Of Thick Beams Based On A Cubic Polynomial Shear Deformation Beam Theory, Charles Ike
An Analytical Solution To Buckling Of Thick Beams Based On A Cubic Polynomial Shear Deformation Beam Theory, Charles Ike
Engineering and Technology Journal
This paper presents analytical solutions for the buckling of thick beams. The Bernoulli-Euler beam theory (BEBT) overestimates their critical buckling load. This paper has derived a cubic polynomial shear deformation beam buckling theory (CPSDBBT) from first principles using the Euler-Lagrange differential equation (ELDE). It develops closed-form solutions to differential equations using the finite sine transform method. The formulation considers transverse shear deformation and satisfies the transverse shear stress-free boundary conditions. The governing equation is developed from the energy functional, Õ, by applying the ELDE. The domain equation is obtained as an ordinary differential equation (ODE). The finite sine transformation of …
Aerodynamic Characteristics Evaluation Of S-Series Airfoils, Hamzah Jaffar, Laith Al-Sadawi, Abdulkareem Khudair, Till Biedermann
Aerodynamic Characteristics Evaluation Of S-Series Airfoils, Hamzah Jaffar, Laith Al-Sadawi, Abdulkareem Khudair, Till Biedermann
Engineering and Technology Journal
The present study utilizes the commercial software ANSYS-Fluent to explore the influence of the geometry of thick S- S-series airfoil on the near-wake region. Four different S-series airfoils, namely S809, S811, S814, and S818, were investigated at a wide range of angles of attack, which were varied from 0 degrees to 20 degrees with an increment of 2 degrees and at a Reynolds number based on chord length Re = 1x106. Analysis of the resultant data revealed that the aerodynamic performance of the S811 and S818 airfoils superseded that of the S809 and S814 airfoils. To illustrate, at the critical …
Solar Photovoltaic Thermal Cells Performance Improvement Using Jet, Phase Change Material And Nanoparticles Cooling Technology: A Review, Mays Shaeli, Monier Baccar, Jalal Jalil
Solar Photovoltaic Thermal Cells Performance Improvement Using Jet, Phase Change Material And Nanoparticles Cooling Technology: A Review, Mays Shaeli, Monier Baccar, Jalal Jalil
Engineering and Technology Journal
The cooling of solar photovoltaic (PV) cells is reviewed in this study. The critical analysis aims to increase PV cell life span and electrical efficiency. To improve the caliber of future studies, this paper examines the implications of earlier studies as well as technical specifics for optimization. Additionally, some of the benefits and drawbacks of various cooling methods are explored. The PV cells cool rate and the PV system's jet impingement cooling technology in PV systems are more effective than any conventional PV cooling systems. Phase change material (PCM) is one of the effective methods used to cool PV cells, …
Enhancing The Solar Still Performance Using Different Designs Of Absorber With Heat Storage Materials And Different Wick Materials: A Review, Lujain Hyal, Jalal Jalil, Abduljabbar Hanfash
Enhancing The Solar Still Performance Using Different Designs Of Absorber With Heat Storage Materials And Different Wick Materials: A Review, Lujain Hyal, Jalal Jalil, Abduljabbar Hanfash
Engineering and Technology Journal
Despite water covering more than two-thirds of the planet, improving potable water production technologies is a significant issue because of the increased demand for treated water. Solar desalination presents a simple, costless energy and friendly technology which utilizes solar energy and gives great incentive to decrease pollution effects produced by burning fossil fuels. In order to address the global drinking water shortage, particularly in rural and distant locations, this technique can be employed to give pure water to people using a solar still, which in many respects, is one of the most significant feasible uses of solar energy and perfect …
Phase Change Material In Glazing Windows System: A Review, Mina Nsaif, Mounir Baccar, Jalal Jalil
Phase Change Material In Glazing Windows System: A Review, Mina Nsaif, Mounir Baccar, Jalal Jalil
Engineering and Technology Journal
As far as thermal insulation is concerned, phase change materials (PCM) have a very good potential to be excellent insulation materials due to their thermal properties like low thermal conductivity and high latent heat. The researchers started to incorporate the walls and windows with PCM to reduce the internal surface temperature and indoor temperature of the room. This paper focuses on double and triple-glazed windows’ thermal performance, different filling insulation materials, ventilation windows, and thermochromic glazing. In addition, a detailed discussion on the effect of changing the thickness and the thermal characteristics of the PCM and its influence on the …
Studying The Influence Of Variable Inlet Guide Vane With The Physical Faults On The Performance Of Industrial Gas Turbine At Part-Load Operation, Waleligne Salilew, Zainal Abdul Karim, Tamiru Lemma
Studying The Influence Of Variable Inlet Guide Vane With The Physical Faults On The Performance Of Industrial Gas Turbine At Part-Load Operation, Waleligne Salilew, Zainal Abdul Karim, Tamiru Lemma
Engineering and Technology Journal
This research work presents a gas turbine performance investigation. Researchers have put efforts into this field of study; however, the influence of the concurrence of variable inlet guide vane (VIGV) drift, fouling, and erosion on the three-shaft gas turbine’s performance during part-load operation has remained unexplored. Therefore, this study addresses this gap. First the gas turbine design point and off-design performance model have been developed by utilizing the original engine manufacturer data provided. The accuracy of the models was validated, and the maximum mean absolute percentage error of the design point performance model is shown at exhaust temperature prediction, it …
Investigating The Impact Of Process Parameters On Thinning And Formability In Aluminum Alloy Aa 1050 Incremental Sheet Metal Forming, Safaa Ghazi, Aqeel Bedan, Maher Salloom
Investigating The Impact Of Process Parameters On Thinning And Formability In Aluminum Alloy Aa 1050 Incremental Sheet Metal Forming, Safaa Ghazi, Aqeel Bedan, Maher Salloom
Engineering and Technology Journal
ISMF is a potential manufacturing technology that uses progressive deformation to create complicated shapes. ISMF produces sheet metal consecutively using targeted tool movement. This innovative method increases component precision, material waste reduction, and design flexibility. A tool is moved along a set path over a flat metal sheet while twisting forces are applied to get the needed shape. SPIF could be used in the medical equipment, aerospace, automotive, and building industries, but it is only profitable in certain situations because it is slower than other sheet-forming methods. SPIF-based die-less making makes it easier to shape. To make cone-shaped structures with …
Investigation Of The Effect Of Spif Parameters On The Thickness Of Al 2024 Alloy, Halah Habeeb, Muhsin Jweeg, Ali Khleif
Investigation Of The Effect Of Spif Parameters On The Thickness Of Al 2024 Alloy, Halah Habeeb, Muhsin Jweeg, Ali Khleif
Engineering and Technology Journal
Sheet metal forming is one of the most commonly used manufacturing processes because millions of different parts are formed daily. In the single-point incremental forming process (SPIF), the change in the thickness of the sheet material is an essential parameter because it is an indicator of the occurrence of failure. In this context, this study investigates the effect of SPIF parameters on the thickness of the Al 2024 alloy used in producing the truncated pyramid. The process parameters were the sheet thicknesses of (1, 1.5, and 2) mm, the step depths of (0.2, 0.4, and 0.6) mm, and the wall …
Investigation Of The Level Of Adoption Of The Lean Philosophy In Small And Medium Enterprises Using Integrated Fuzzy Assessment Model Based On Fuzzy Dematel / Fuzzy Topsis, Zainab Al-Baldawi, Allaeldin Kassam, Sawsan Al-Zubaidi
Investigation Of The Level Of Adoption Of The Lean Philosophy In Small And Medium Enterprises Using Integrated Fuzzy Assessment Model Based On Fuzzy Dematel / Fuzzy Topsis, Zainab Al-Baldawi, Allaeldin Kassam, Sawsan Al-Zubaidi
Engineering and Technology Journal
Lean Production is a continuous improvement philosophy derived from the Toyota Production System (TPS) aimed at improving the operational efficiency and performance of companies. Although the Lean philosophy has been widely applied in large enterprises, its implementation and adoption in small and medium-sized enterprises (SMEs) has remained relatively underexplored. In this paper, a fuzzy assessment model has been proposed that integrates Fuzzy Decision-Making Trial and Evaluation Laboratory (Fuzzy DEMATEL) and Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (Fuzzy TOPSIS) to aim to investigate the level of implementation and adoption of the lean philosophy in SMEs through …
Analyzing The Impact Of Fdm Parameters On Compression Strength And Dimensional Accuracy In 3d Printed Pla Parts, Hind Abdulridha, Tahseen Abbas
Analyzing The Impact Of Fdm Parameters On Compression Strength And Dimensional Accuracy In 3d Printed Pla Parts, Hind Abdulridha, Tahseen Abbas
Engineering and Technology Journal
Fused deposition modeling (FDM) is an additive manufacturing (AM) technique frequently used to create prototypes and parts with intricate geometrical designs. It is gaining popularity since it enhances products by removing the need for expensive equipment. The materials used, the printing process, and the parameters influence the mechanical properties of printed objects. The quality and functionality of the parts are impacted by FDM process parameters. This study focused on the impact of six parameters on the mechanical and physical properties of samples printed using the FDM machine (Creality Ender-5 Pro). The infill density percentage, infill pattern, layer thickness, shell thickness, …
Integrating Grey Relation Analysis And Artificial Neural Networks For Optimal Machining Of Tungsten Carbide Composite Using Hybrid Electrochemical Discharge, Vian Najm, Tahseen Abbas, Shukry Aghdeab
Integrating Grey Relation Analysis And Artificial Neural Networks For Optimal Machining Of Tungsten Carbide Composite Using Hybrid Electrochemical Discharge, Vian Najm, Tahseen Abbas, Shukry Aghdeab
Engineering and Technology Journal
Hybrid Electrochemical Discharge Machining (ECDM) streamlines the manufacturing process for challenging materials. Tungsten carbide (WC) is widely recognized as a formidable material due to its exceptional hardness and its ability to maintain hardness even at elevated temperatures. This study has conducted a comprehensive investigation of the multi-response optimization of ECDM process parameters to enhance the machining of tungsten carbides, utilizing Grey Relation Analysis (GRA) and Artificial Neural Network (ANN) methods. This optimization's primary objective is to achieve the maximum Material Removal Rate (MRR) and machining depth. The study involved a systematically designed experiment based on the Taguchi design method. Scanning …
Using Taguchi Design To Compare The Corrosion Behavior Of Commercial Pure Ti Alloys Coated By Dip And Electrophoretic Deposition With Ysz, Marwan Hussein, Ali Mustafa, Makarim Abdulkareem
Using Taguchi Design To Compare The Corrosion Behavior Of Commercial Pure Ti Alloys Coated By Dip And Electrophoretic Deposition With Ysz, Marwan Hussein, Ali Mustafa, Makarim Abdulkareem
Engineering and Technology Journal
This study makes experimental evaluations of the corrosion and tip tests of CP-Ti joint (commercial pure Ti) implant alloys coated with YSZ nanoceramic. A Taguchi design of experiments (DOE) strategy was used to create a thin adhesive covering utilizing dip coating and electrophoretic deposition techniques. An L9-type orthogonal Taguchi array determined how dip coating and electrophoretic deposition factors, such as temperature, voltage, YSZ concentration, time, and the degree of pulverizing the Ti alloy substrate, affected the deposition yield. The Ti alloys were coated using the optimal settings for the dip coating and electrophoretic deposition procedures as previously described, utilizing the …
Evaluation Of The Performance Of Steel Slag And Waste Glass As A Cement Replacement, Ahmed Azeez, Maan Hassan, Alaa Atiyah
Evaluation Of The Performance Of Steel Slag And Waste Glass As A Cement Replacement, Ahmed Azeez, Maan Hassan, Alaa Atiyah
Engineering and Technology Journal
The industrial development and growth in population activity caused an annual increase in solid wastes over the past decades. The emissions of CO2 from the cement industry are the main source of air pollution. Recycling wastes as cementitious materials conserve the ecosystem in different aspects, e.g., reduction of CO2 footprint. Consequently, the pozzolanic activity of two solid wastes abundantly available in Iraq, steel slag (SS) and waste glass (WG), were evaluated. This study aimed to replace them with ordinary Portland cement. This will achieve a sustainable, eco-efficient, and environmentally friendly construction industry. The Chemical analysis of the wastes by XRF …