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Articles 39451 - 39480 of 2917251
Full-Text Articles in Entire DC Network
Sustainable High-Performance Concrete Reinforced With Hybrid Steel Waste Fibers, Zainab Jabbar, Wassan Khalil
Sustainable High-Performance Concrete Reinforced With Hybrid Steel Waste Fibers, Zainab Jabbar, Wassan Khalil
Engineering and Technology Journal
This research aims to study the benefit of using fibers made from waste materials in concrete and evaluate the ability to use these fibers as a substitute for commercial fibers. Different aspect ratios of alternative fibers formed from cut steel tied wire waste were utilized. This material is selected because of its low price and wide availability. Two concrete mixes with 15% waste crushed clay brick coarse aggregate reinforced with different volume fractions of 1.0 and 1.5% and an aspect ratio of 40 were prepared. Also, three concrete mixes reinforced with a hybrid aspect ratio of 40 and 65 of …
The Permeation And Separation Characteristics Of Polymeric Membranes Incorporated With Nanoparticles For Dye Removal And Interaction Mechanisms Between Polymer And Nanoparticles: A Mini Review, Dalya Al-Araji, Faris Al-Ani, Qusay Alsalhy
The Permeation And Separation Characteristics Of Polymeric Membranes Incorporated With Nanoparticles For Dye Removal And Interaction Mechanisms Between Polymer And Nanoparticles: A Mini Review, Dalya Al-Araji, Faris Al-Ani, Qusay Alsalhy
Engineering and Technology Journal
Dyes are an essential group of organic pollutants with a long history of harming aquatic life and humans. Prior to disposal, polluted dye wastewater must be adequately treated to prevent adverse impacts on persons and the environment. Although there are several techniques for dye removal, most of them share a similar drawback: they generate secondary pollution to the environment. Membrane separation is highlighted in this article because it is one of the most efficient dye removal techniques available nowadays due to its high removal capacity, ease of operation, and clean water generation. Polymeric membranes are frequently used in membrane-based separations …
Influence Of Adding Plant Fly Ash On The Geotechnical Properties And Pollution Of Sanitary Landfill Soil, Abdulrahman Salim, Zainab Mohammed, Mohamed Fattah
Influence Of Adding Plant Fly Ash On The Geotechnical Properties And Pollution Of Sanitary Landfill Soil, Abdulrahman Salim, Zainab Mohammed, Mohamed Fattah
Engineering and Technology Journal
This paper investigates the impact of the plant fly ash (dry tree leaves) addition on the geotechnical properties of the landfill soil, where an engineering laboratory landfill simulating a real landfill was manufactured. Two percentages of plant fly ash (10% and 15%) were used to reduce or prevent the penetration of heavy metals resulting from the decomposition of landfill waste into the soil and conducting laboratory tests such as the Atterberg test, specific gravity test, compaction test, permeability test, SEM test, and heavy metals analysis. The results of laboratory tests indicate a decrease in the plastic limit and the liquid …
Modifying The Properties Of Open-Graded Friction Course By Adding Cellulose Fiber, Ahmed Muhammed, Zaynab Qasim, Rasha Al-Rubaee
Modifying The Properties Of Open-Graded Friction Course By Adding Cellulose Fiber, Ahmed Muhammed, Zaynab Qasim, Rasha Al-Rubaee
Engineering and Technology Journal
In recent years, Open Graded Friction Course OGFC is becoming more common in some countries. It is applied to improve surface frictional resistance, minimize hydroplaning, reduce water spray, improve night visibility, and lower pavement noise levels. These functions are carried out primarily by removing water from the pavement surface during a period of rain. Also, it has many disadvantages which as poor resistance to permanent deformation, low fatigue strength, high stripping, and moisture susceptibility. The paper aims to investigate the probability of using Cellulose Fiber (CF) as a modifier to improve the properties of OGFC asphalt mixture. In this research, …
Measurement Of The Lateral Earth Pressure Coefficient Of Clayey Soils By Modified Oedometer Test, Kumail Alkhafaji, Mohammed Fattah, Makki Al-Recaby
Measurement Of The Lateral Earth Pressure Coefficient Of Clayey Soils By Modified Oedometer Test, Kumail Alkhafaji, Mohammed Fattah, Makki Al-Recaby
Engineering and Technology Journal
The coefficient of lateral earth pressure at rest (K0) explains the connection between the effective vertical and lateral stresses. Geotechnical engineers have studied K0 for many years for its being a key element in the designs and analysis of various geotechnical problems such as slope stability, piles, and earth retaining structures. Moreover, K0 has played a critical phase in any numerical study of the soil-water combined geotechnical boundary value issues requiring parametric stress-strain time formulations During the previous few decades. A modified apparatus consisting of a standard Oedometer equipped with Force Sensitive Resistance (FSR) is used to investigate the value …
A Numerical Analysis On Pullout Capacity Of Batter Pile Groups In Sandy Soil, Mais Al-Tememy, Mohammed Al-Neami, Mohammed Asswad
A Numerical Analysis On Pullout Capacity Of Batter Pile Groups In Sandy Soil, Mais Al-Tememy, Mohammed Al-Neami, Mohammed Asswad
Engineering and Technology Journal
Batter piles or raker piles are the piles driven in the soil at an inclination with the vertical to resist inclined forces or large lateral loads. Battered piles are widely utilized to support offshore buildings, towers, and bridges since these structures are risky due to the exposure to overturning moments resulting from winds, waves, and ship impact. This paper used a three-dimensional finite element analysis using PLAXIS 3D software to study the effect of several variables that affect the behavior of batter piles in a group under pullout loads. The study is conducted on a steel pipe pile model embedded …
Effect Of Different Parameters On Raman Scattering Released From Nb2o5 Nanostructures Prepared Via Pld Technique, Evan Salim, Suhair Shafeeq, Mohammed Abdulrazzaq, Mohammed Wahid
Effect Of Different Parameters On Raman Scattering Released From Nb2o5 Nanostructures Prepared Via Pld Technique, Evan Salim, Suhair Shafeeq, Mohammed Abdulrazzaq, Mohammed Wahid
Engineering and Technology Journal
Due to the significance of Nb2O5 as a promising industrial and biomedical material and the importance of Raman analyses to identify nanostructural molecular responsivity for various applications, this study aims to investigate Nb2O5 molecular bands that emerged under the impact of the Raman scattering phenomenon. Besides other advantages, Raman scattering analyses can provide a further investigation of the nanostructural polycrystalline phases supporting the XRD analyses. A pulsed laser was selected as the deposition technique for Nb2O5 thin films prepared with four different parameters. The selection of the pulsed laser deposition (PLD) method was due to the insufficient studies and investigations …
Study The Effect Of Laser Wavelength On Zno Nanoparticle Characteristics Synthesized By Pulse Laser Ablation As An Antibacterial Application, Hadeel Imran, Kadhim Hubeatir, Kadhim Aadim
Study The Effect Of Laser Wavelength On Zno Nanoparticle Characteristics Synthesized By Pulse Laser Ablation As An Antibacterial Application, Hadeel Imran, Kadhim Hubeatir, Kadhim Aadim
Engineering and Technology Journal
In recent years, biologists, chemists, materials scientists, and engineers have become interested in Nano-sized particles because of their unique properties. In this paper, ZnO nanoparticles were synthesized using an Nd: YAG laser with 800 mJ at 1064 nm and 532 nm (the fundamental and second harmonic wavelengths). The characteristics of optical, morphological, structural, wettability and antibacterial activity have been studied. The used technique of PLAL was successful in nanoparticle formation. It was proved in color changes, which was an indication of ZnO nanoparticle formation. The optical measurements show a decrease in absorption wavelength and an increase in the band gap, …
A Survey On Load Balancing, Routing, And Congestion In Sdn, Amthal Mousa, Mohammed Abdullah
A Survey On Load Balancing, Routing, And Congestion In Sdn, Amthal Mousa, Mohammed Abdullah
Engineering and Technology Journal
High traffic could result in load imbalance or network congestion, which degrades the network’s performance and efficiency. Thus, it is crucial to adopt efficient routing and load balancing models to face these challenging issues. Additionally, when investigating a new approach, it is essential to consider the most important metrics to evaluate this potential approach precisely. This paper presents an intensive analysis of recently available SDN-based load balancing and routing techniques. Furthermore, the features and issues of each technique are stated. Moreover, the most important metrics that should be evaluated are statically analyzed. Also, a brief survey of available network congestion …
Images Enhancement Based On A New Multi-Dimensional Fractal Created By Rectangular Function, Rabab Farhan
Images Enhancement Based On A New Multi-Dimensional Fractal Created By Rectangular Function, Rabab Farhan
Engineering and Technology Journal
Digital image processing is a field that is included in many journals due to its importance and the fact that it facilitates the achievement of many scientific and engineering applications worldwide. This specialization is linked with other disciplines, whether medical, engineering, sports, and others, as it facilitates the completion of applications quickly and efficiently. Researchers have discovered and garnered notice as a promising analytic tool in image processing using the idea of fractal dimension. In this effort, a new Multi-Dimensional Fractal (MDF) in view of the rectangle function was introduced a. As an application, the MDF to improve and enhance …
Preparation And Performance Of Pu/Cpsf Blend Ultrafiltration Membranes For Removal Of Heavy Metal Ion Rejection Studies, Latha S., Shanthana Lakshmid, Maheswari P., Mohan D
Preparation And Performance Of Pu/Cpsf Blend Ultrafiltration Membranes For Removal Of Heavy Metal Ion Rejection Studies, Latha S., Shanthana Lakshmid, Maheswari P., Mohan D
Engineering and Technology Journal
The performance of membranes for a specific application can be determined with the help of structural properties such as molecular weight cut-off (MWCO), morphology, and pore statistics. Heavy metal ions from aqueous streams can be separated with the help of ultrafiltration membranes. In the presence and absence of the various components of the additive poly (ethylene glycol) 600, MWCOs and pore statistics of polyurethane (PU) and carboxylated polysulfone (CPSf) blend ultrafiltration (Total Polymer Concentration = 17.5 wt %) were studied with the help of dextran of different molecular weights ranging from 19 kDa to 150 kDa. The derived pore size, …
Remove Liquid Radioactive Wastes Utilizing Nanofiltration, Ultrafiltration, And Microfiltration Membranes, Alanood Alsarayreh, Taisir Abbas, Saleh Alaswad, Sabad E-Gul, A Bajoga
Remove Liquid Radioactive Wastes Utilizing Nanofiltration, Ultrafiltration, And Microfiltration Membranes, Alanood Alsarayreh, Taisir Abbas, Saleh Alaswad, Sabad E-Gul, A Bajoga
Engineering and Technology Journal
Radioactive waste is generated from fuel cycle processes in nuclear reactors and nuclear power plants (NPPs) in electrical power production, radioisotope manufacturing in nuclear research centers, and medical, industrial, and agricultural applications. Also, natural chain-linked radioisotopes (NORM) are generated from processing and burning fossil fuels and producing oil and natural gas. Therefore, a planned and integrated radioactive waste management strategy must be adopted to protect human health and the environment from the dangers of this waste through published research on a comprehensive radioactive waste management strategy and the testing and dissemination of several treatment options. The main objective is to …
Hydrodynamic Properties Investigation Of Ebullated Bed Reactor Using Non-Newtonian Liquid, Zahraa Hassan, Asawer Al Wasiti, Zainb Shnain, Peter Philib
Hydrodynamic Properties Investigation Of Ebullated Bed Reactor Using Non-Newtonian Liquid, Zahraa Hassan, Asawer Al Wasiti, Zainb Shnain, Peter Philib
Engineering and Technology Journal
The importance of using EBR has been renewed recently due to the sharp increase in heavy feedstocks sent to refineries and the hydrocracking process. Most of these feedstocks have a non-Newtonian behavior. The performance of this type of reactor using non-Newtonian liquid is complicated and has not been covered well yet. Hence, the present work is devoted to elucidating the effect of the non-Newtonian behavior of fluid on the hydrodynamic properties of a three-phase (gas-liquid-solid) reactor under operating conditions of different values of gas velocity (2, 4, 6) cm/sec, liquid velocity (0.9, 1.39, 1.8, 2.3) cm/sec, and recycle ratio (1.5, …
Bio-Treatment Technologies Of Produced Water: A Review, Rana Azeez, Firas Al-Zuhairi
Bio-Treatment Technologies Of Produced Water: A Review, Rana Azeez, Firas Al-Zuhairi
Engineering and Technology Journal
Petroleum is a vital source of energy for most human activities. The growth of the oil and gas sector is associated with releasing a significant amount of produced water (PW) from onshore and offshore fields. Thus, undesirable toxic pollutants in produced water have become a major concern for those concerned with environmental issues. Therefore, interest in recycling and beneficial reuse of pollutants has increased due to large amounts of PW. In general, various physical and chemical technologies and bio-treatments for PW or combined between them are applied. Bio-treatment is preferred due to its efficiency and eco-friendly compared with other PW …
Recent Development In Hydrodynamic And Heat Transfer Characteristics In The Three-Phase Fluidized-Bed System, Omar Mahdy, Amer Abdulrahmn, Jamal Ali
Recent Development In Hydrodynamic And Heat Transfer Characteristics In The Three-Phase Fluidized-Bed System, Omar Mahdy, Amer Abdulrahmn, Jamal Ali
Engineering and Technology Journal
Gas–liquid-solid fluidized beds are broadly utilized in the petrochemical, pharmaceutical, refining, food, biotechnology, and environmental industries. Due to complex phenomena, such as the particle-particle, liquid-particle, particle-bubble interactions, complex hydrodynamics, and heat transfer of three-phase (gas-liquid-solid) fluidized beds, they are incompletely understood. The ability to accurately predict the essential characteristics of the fluidized-bed system, such as hydrodynamics, individual phase mixing, and heat transfer parameters, is necessary for its successful design and operation. This paper investigates the pressure drop, minimum fluidization velocity, phase holdup, heat-transfer coefficient of a fluidized bed reactor, heat transfer studies, CFD simulation, and the effect of these parameters …
Improved Water-Based Mud Rheological Properties And Shale-Inhibition Behavior By Using Aluminum Oxide And Iron Oxide Nanoparticles, Hasan Abbood, Ibtehal Shakir
Improved Water-Based Mud Rheological Properties And Shale-Inhibition Behavior By Using Aluminum Oxide And Iron Oxide Nanoparticles, Hasan Abbood, Ibtehal Shakir
Engineering and Technology Journal
Nanotechnology can be used to develop drilling fluid additives that can improve the drilling fluid's properties. Using two types of nanoparticle (NP) additives in water-based drilling fluids have been studied in this paper. Three major drilling mud systems, namely potassium chloride (KCl) as a basic mud, KCl/aluminum oxide (Al2O3) NPs, and KCl/iron (Fe2O3) NPs, were prepared and studied for enhancement of rheological properties and shale inhibition. It was found that the drilling mud contained NPs in concentrations of 0.25, 0. 5, 0.75, and 1 g. Al2O3 and Fe2O3 NPs added to KCl/polymer mud systems resulted in a 50% and 30% …
Hydroisomerization Of N-Heptane In A Fixed-Bed Reactor Using A Synthesized Bimetallic Type-Hy Zeolite Catalyst, Younus Khalaf, Bashir Sherhan, Zaidoon Shakour
Hydroisomerization Of N-Heptane In A Fixed-Bed Reactor Using A Synthesized Bimetallic Type-Hy Zeolite Catalyst, Younus Khalaf, Bashir Sherhan, Zaidoon Shakour
Engineering and Technology Journal
The synthesis of NaY-zeolite was performed hydrothermally. The preparation of the bifunctional catalysts was achieved by loading NH4Y-zeolite with a cheap Zr metal, as a second loading metal, with tiny amounts of Pt to compose a Pt-Zr/Y-zeolite catalyst. Different characterization methods (i.e., XRD, SEM, EDX, BET, and AFM) were used to investigate the catalyst properties. The catalytic performance was studied by performing the hydroisomerization of n-heptane in a gas phase at a temperature of 275°C and atmospheric pressure in a fixed-bed reactor. The GC-FID results of the products confirmed the positive role of Zr in enhancing the catalytic features, as …
Use Of Tio2 In Photocatalysis For Air Purification And Wastewater Treatment: A Review, Seba Mohammed, Zainab Shnain, Mohammad Abid
Use Of Tio2 In Photocatalysis For Air Purification And Wastewater Treatment: A Review, Seba Mohammed, Zainab Shnain, Mohammad Abid
Engineering and Technology Journal
This study reviews recent research on the synthesis and application of titanium dioxide (TiO2)-based photocatalysts for environmental applications. The principles of non-homogenous photo-catalysis include utilizing a solid semiconductor, such as titanium dioxide Nano or macro, to form a stable suspension (heterogeneous phase) at the impact of irradiation to elevate a reaction at the surface interface of the different phases in the system. Recently, titanium dioxide has been considered the better semiconductor in non-homogenous photoinduced treatment. TiO2-based photocatalysts have broad applications for industrial processes because of their exceptional physicochemical properties. Nevertheless, having a narrow band near the ultraviolet region limits its …
High Gain Transformer-Less Inverter Based-On Capacitor Clamping Multi-Phase Boost Converter, Oday Saad, Jasim Hussain
High Gain Transformer-Less Inverter Based-On Capacitor Clamping Multi-Phase Boost Converter, Oday Saad, Jasim Hussain
Engineering and Technology Journal
ABSTRACTThe boosting converters integrated with inverters are widespread use in many applications under transformerless inverter titles, including powered vehicles, PV systems, fuel cells systems and so on. Reliability, quality, maintainability, and reduction in size are important requirements in the energy conversion process. The multi-phase boost converter can be adopted as a good solution with high power applications. The multi-phase boost enhanced by clamping capacitor structure is providing low ripple, high gain and evident improvement in the efficiency when compared to the conventional converters. This paper investigates the transformerless inverter based on a capacitor clamping multi-phase boost converter. High gain proposed …
A Compact High Isolation Four Elements Mimo Antenna System For 5g Mobile Devices, Muhannad Muhsin, Jawad Ali, Ali Salim
A Compact High Isolation Four Elements Mimo Antenna System For 5g Mobile Devices, Muhannad Muhsin, Jawad Ali, Ali Salim
Engineering and Technology Journal
A Compact high isolation Multi Input Multi Output Antenna system working on 3.5 GHz (3400 - 3600) MHz is presented for the 5G mobile terminals. Four-antenna elements are employed to construct the proposed MIMO antenna system. These antennas are located over two slim side-edges frame of a mobile device to meet the present trend requirements of slim and full-screen smartphone devices. A modified Hilbert fractal monopole antenna and an I-shaped feeding line construct the antenna element’s front part, while an L-shaped shorted to the system’s ground plane are used to the antenna element’s back part. The overall monopole antenna element’s …
Build And Implement Radiation Control Using Iot In Parabolic Trough Solar Collector (Ptsc), Sarah Bassem, Samer Ismael, Jalal Jalil
Build And Implement Radiation Control Using Iot In Parabolic Trough Solar Collector (Ptsc), Sarah Bassem, Samer Ismael, Jalal Jalil
Engineering and Technology Journal
Connecting the devices to the internet based on the internet of things IoT increases the capability of monitoring and measuring, and controlling essential variables. In this study, the radiation intensity was controlled via the internet of things IoT for PTSC to study the collector's behavior. The light control circuit was designed, built, and implemented. The circuit mainly consists of a power supply, Arduino, relay, and potentiometer. Radiation was successfully monitored using a sensor and displayed through a smartphone via Wi-Fi, and the intensity of radiation light controls the PCM status. A data logging system was applied using a micro SD …
The Evaluation Of Time-Dependent Initialization Vector Advanced Encryption Standard Algorithm For Image Encryption, Hayder Assafli, Ivan Hashim, Ahmed Naser
The Evaluation Of Time-Dependent Initialization Vector Advanced Encryption Standard Algorithm For Image Encryption, Hayder Assafli, Ivan Hashim, Ahmed Naser
Engineering and Technology Journal
The Advanced Encryption Standard (AES) has become an attractive encryption method for its high security and fast implementation. The encryption algorithm is approved as a standard to be used in widely used communication and data processing units However, the advance in technology and the introduction of quantum computers made the encryption scheme vulnerable to attack. Different attack procedures are continuously being developed for attacking end decrypted important and sensitive data. This paper evaluated an enhanced Advanced Encryption System operating in Cipher Block Chaining mode that suggests a promising solution for resisting future attacks. The approach depends on a time-dependent initialization …
A Review Of Control Technique Applied In Shunt Active Power Filter (Sapf), Ayad Hadi, Ekhlas Thjeel, Ali Nahar
A Review Of Control Technique Applied In Shunt Active Power Filter (Sapf), Ayad Hadi, Ekhlas Thjeel, Ali Nahar
Engineering and Technology Journal
In recent years, electronic transformers and electronic devices (nonlinear loads) have increased. These loads are the source of harmonics (non-sinusoidal and distorted waves) and the interactive force that affects the performance of the power system network. Also, it badly affects the power factor and electrical energy on the scales of efficiency and quality. For this reason, a system called “Active Power Filters” has been adopted. It provides an effective alternative to traditional LC passive power filters. It can improve network performance by treating and reducing harmonics, improving power factor and quality, avoiding resonance between the filter and the network, and …
The Fundamental Of Reduced Graphene Oxide With Nanosilver Composite Films Using The Spin Coating Technique, Hamsa Alaloosi, Farah Noori, Abdulhadi Jidran
The Fundamental Of Reduced Graphene Oxide With Nanosilver Composite Films Using The Spin Coating Technique, Hamsa Alaloosi, Farah Noori, Abdulhadi Jidran
Engineering and Technology Journal
Graphene oxide synthesis by hummers method and reduction by the green chemical method using green tea. Preparation films with reduced graphene oxide (rGO) and Silver Nanoparticles (AgNPs) by a spin coating method. The preparation films and Nanomaterial characteristics with X-Ray diffraction (XRD) GO has a peak at (2θ = 11.22̊ ). While rGO has a wider peak at (2θ = 26.2̊ ). The (rGO +AgNPs) films have five obvious diffraction angles. In Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX), flaky sheet (rGO), and spherical (AgNPs) with Nanosize about ~20 nm, the peaks of EDX indicated the presence of …
The Visual Quality Of Healthy Eye Lens For Different Tilt Effects, Laith Tawfeeq, Ali Al-Hamdani
The Visual Quality Of Healthy Eye Lens For Different Tilt Effects, Laith Tawfeeq, Ali Al-Hamdani
Engineering and Technology Journal
The importance and accuracy of the human visual system have led scientists and researchers to do their best to study it, know its problems, and how to treat them.The eye lens tilt is possibly due to a specific accident such as a blow or the like. So, this manuscript was submitted to study the human eye lens tilting effect on visual performance and determine the tolerance tilt values. Using (ZEMAX-EE) software program and relying on the Liou and Brennan model Eye (LBME), one of the most accurate models for studying the eye, and some basic criteria used to describe the …
Power Quality Examination For (250kw) Pv Grid-Tied Connected At Various Irradiance Levels, Ahmed Jasim, Dahri Mahmood, Oday Ahmed
Power Quality Examination For (250kw) Pv Grid-Tied Connected At Various Irradiance Levels, Ahmed Jasim, Dahri Mahmood, Oday Ahmed
Engineering and Technology Journal
Although using a PV grid-tide system has many advantages, connecting the PV to the grid creates a new challenge at the power quality level. The PV grid-tide plant (250 kW), implemented at the Iraqi ministry of electricity building, was taken as a case steady to examine the power quality issue at various irradiance levels. The plant was described in detail and built using MATLAB2018b/Simulink. The developed system was examined at various irradiance levels. The results showed that an increased irradiance level leads to an enhancement in the power quality. The total harmonic distortion (THD) decreases with the increase of irradiance. …
An Enhanced Interface Selectivity Technique To Improve The Qos For The Multi-Homed Node, Haider Oleiwi, Nagham Saeed, Heba Al-Taie, Doaa Mhawi
An Enhanced Interface Selectivity Technique To Improve The Qos For The Multi-Homed Node, Haider Oleiwi, Nagham Saeed, Heba Al-Taie, Doaa Mhawi
Engineering and Technology Journal
The user’s handoff is still an arguable issue that many mobile communication systems face, especially with the exploded growth of users and internet-based applications. There is a critical need for adequate quality of service (QoS) to meet the stringent requirements. This paper aims to study the overall performance and feasibility of several QoS mechanisms with the single-homed and multi-homed networks/nodes fluctuating resource availability. It investigates the adaptability of multi-interfaced multi-homed techniques to enhance the essential governing parameters, i.e., throughput, end-to-end latency, processing time, and jitter. Moreover, the paper introduces an interface selectivity technique for the multi-homed node to adopt the …
Numerical And Theoretical Analysis Of A Spur Gear Using Composite And Conventional Materials, Jwan Mohammed, Dlair Ramadan
Numerical And Theoretical Analysis Of A Spur Gear Using Composite And Conventional Materials, Jwan Mohammed, Dlair Ramadan
Engineering and Technology Journal
A spur gear is one of the most common forms of precision cylindrical gear. In the industry, reducing the weight of gears while keeping their useful properties has become an even more pressing challenge. As a result, the investigators have made many attempts to reduce the weight of the gears. Despite these efforts, the problem still requires more research. This study presented a spur gear's modeling and finite element analysis using different materials. A three-dimensional spur gear was designed, modeled, and simulated using ANSYS software. Five different materials, including two conventional materials (stainless steel and copper alloy) and three different …
Experimental Study On The Effect Of Aspect Ratio On Flexural Behavior Of Aluminum Sandwich Composite, Ganesh Radhakrishnan, Al Haitham Al Hattali, Al Muntasser Al Yahyai, Al Muntasser Al Riyami, Al Muatasim Al Hadhrami
Experimental Study On The Effect Of Aspect Ratio On Flexural Behavior Of Aluminum Sandwich Composite, Ganesh Radhakrishnan, Al Haitham Al Hattali, Al Muntasser Al Yahyai, Al Muntasser Al Riyami, Al Muatasim Al Hadhrami
Engineering and Technology Journal
Sandwich composites are one such kind of light-weight composites developed for structural and vehicle body buildings etc. Due to their remarkable features such as high specific strength, high toughness and resistance to inter laminar shear strength. In this study, commercially available aluminium sandwich composite (ASC) laminate was considered for investigating its flexural behavior and buckling behavior as it was mostly used for various structural applications. Flexural analysis was done for different aspect ratios in order to analyze the influence of cross section of the specimen and support span on the flexural capability of the sandwich beam. The composite specimens prepared …
Study Effect Of Exhaust Gas Recirculation Upon Emissions And Performance By Using European Diesel And Iraqi Diesel, Lina Jamal, Adel Saleh
Study Effect Of Exhaust Gas Recirculation Upon Emissions And Performance By Using European Diesel And Iraqi Diesel, Lina Jamal, Adel Saleh
Engineering and Technology Journal
This study investigated the effect of exhaust gas re-circulation (EGR) on performance and exhaust emissions in a single-cylinder, air-cooled, and direct-injection diesel engine. The Iraqi diesel fuel (D100) and European diesel fuel (ED100) were utilized at different speeds from (2100 to 3300 in intervals of 300) using the recycling of exhaust gas by a ratio (0%, 5%, 10%, 15%, and 20%. The study showed that European diesel fuel positively impacts engine performance and emissions. Compared to Iraqi diesel fuel, European decreased diesel fuel the brake-specific fuel consumption by (10.96%), increased brake thermal efficiency by (8.67%), decreased exhaust gas temperature by …