Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2026

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 7021 - 7050 of 108124

Full-Text Articles in Entire DC Network

Mechanical Properties Modeling And Optimization For Polymeric Matrix Hybrid Bio Composite For Scaffolds Application, Jenan Kashan, Marwan Arbilei Aug 2026

Mechanical Properties Modeling And Optimization For Polymeric Matrix Hybrid Bio Composite For Scaffolds Application, Jenan Kashan, Marwan Arbilei

Engineering and Technology Journal

TiO2 / Polypropylene composite considers very promising biomaterials in bone replacement and repair application, but mechanical properties still out of load bearing scaffolds application. In this work, two approaches were suggested to produce enhanced polymeric matrix bio composite for scaffolds application, 1st one was by using Nano TiO2 particles to produce bio composite with good mechanical properties. while the 2nd approach applied by the addition of Al2O3 Nano particles. Different processing conditions have been used like different compounding pressures, compounding temperatures, and chemical composition. This work aimed to investigate the effect of these additions and processing factors on mechanical and …

Go to article

Investigation Of The Effect Of Loading Paths In The Tube Hydroforming Process, Adil. Jaber Aug 2026

Investigation Of The Effect Of Loading Paths In The Tube Hydroforming Process, Adil. Jaber

Engineering and Technology Journal

The control accurately of internal pressure, axial feeding and paths of loading which have important influences on the final tube quality. In this research an impact of loading path of the tube hydroforming process and final part requirements ( i.e. thickness specification and shape conformation) were studied numerically. Small bulge shape tube hydroforming parts were utilized in the finite element analyses to get several guidelines on the effect of the relation between the internal pressure and axial compressive feeding programs. Two dimension model of bulge shape tube (50 mm) bulge width has been developed from cylindrical tube with thickness (2mm) …

Go to article

Comparison Between Deterministic And Stochastic Interpolation Methods For Predicting Ground Water Level In Baghdad, Muammar Ali, Aqeel Al-Adili, Nagaratnam Sivakugan Aug 2026

Comparison Between Deterministic And Stochastic Interpolation Methods For Predicting Ground Water Level In Baghdad, Muammar Ali, Aqeel Al-Adili, Nagaratnam Sivakugan

Engineering and Technology Journal

Surface interpolation techniques are usually used to create continuous data (i.e. raster data) from distributed set of point data over a geographical region. There are deterministic and stochastic (geostatistical) interpolation techniques can be used to create spatial raster surface. In this paper, the comparison between the Inverse Distance Weight (IDW) interpolation method as deterministic method and the Kriging interpolation method as stochastic method is done to determine the best performance for measuring levels of ground water in Baghdad Governorate. Spatial raster surface surfaces as ground water prediction maps are generated from each method by using average ground water level measured …

Go to article

Developing An Approach To Redesign Freeform Surfaces Using B-Spline Technique, Amjad Adulghafour, Ahmed Hassan Aug 2026

Developing An Approach To Redesign Freeform Surfaces Using B-Spline Technique, Amjad Adulghafour, Ahmed Hassan

Engineering and Technology Journal

In product design process trends currently tend to use sculpture surface (freeform surface) that modeling by using (NURBS, B-spline, Bezier) technique to suit aesthetic, functional and manufacturability requirements. The B-Spline technique is one of the most important tools in computer aided geometric design (CAGD). This paper reported a new approach to design 3D freeform CAD model and then represented this model mathematically by using B-Spline technique. This mathematical represent consider one of the important aims that useful in manufacturing process through its geometric data which defines by this represent. The approach has three major steps: design 3D CAD solid contain …

Go to article

Effect Of Inhibition By Honey On Corrosion Behavior Of Composite Materials From Al-4% Si Alloy Reinforced With Y2o3 Particles, Hanna Al-Kaisy, Mervit Hanoos Aug 2026

Effect Of Inhibition By Honey On Corrosion Behavior Of Composite Materials From Al-4% Si Alloy Reinforced With Y2o3 Particles, Hanna Al-Kaisy, Mervit Hanoos

Engineering and Technology Journal

this work focuses on the preparation specimens of metal matrix composite materials exemplified alloy (Al-4%Si) reinforced by yttria particles Y2O3 with different weight percentage (1,2and 3). Effect of yttria particles on polarization behavior of (Al-4% Si alloy) in sulfuric acid (0.5 M) was studied by using potentiostat in the presence and the absence of natural honey with different concentration (1and 2gm/L) as inhibitor. The results show that the values of tafel slops and corrosion rate (Rmpy) of composite materials reinforcing with particles of yttria with three percentage decreases with increasing the concentration of honey, and the efficiency of inhibition (El%) …

Go to article

Fault Diagnosis In Wind Power System Based On Intelligent Techniques, Kanaan Jalal, Lubna Abd Alameer Aug 2026

Fault Diagnosis In Wind Power System Based On Intelligent Techniques, Kanaan Jalal, Lubna Abd Alameer

Engineering and Technology Journal

Wind energy is one of the most important sources as well as being environmentally friendly and sustainable. In this paper, different types of faults of Doubly-Fed Induction Generator (DFIG) have been studied based on Artificial Neural Network (ANN), Particle Swarm Optimization (PSO) and Field Programmable Gate Array. To simulate the wind generators model MATLAB/Simulink program has been used. Artificial Neural Network (ANN) is trained for detection the faults and (PSO) technique is used to get the best weights. After the training process, the network was transformed into a Simulink program and then converted into the Very High Speed Description Language …

Go to article

The Effect Of Addition Of Ceo2 Nanoparticles On The Microstructure And Mechanical Properties Of Ti-Al-Mg Compact Samples, Mahdi Hanoon, Akeel Al-Attar, Ali Resen Aug 2026

The Effect Of Addition Of Ceo2 Nanoparticles On The Microstructure And Mechanical Properties Of Ti-Al-Mg Compact Samples, Mahdi Hanoon, Akeel Al-Attar, Ali Resen

Engineering and Technology Journal

In this research, Ti-15Al-5Mg alloy with different amount of CeO2 nanoparticles was prepared by powder metallurgy method, the powders of these materials were mixed together by ball mill then the mixed powders were pressed under high pressure, the compacted samples were sintered in electron furnace under argon gas. The density and porosity measured using Archimedes method, XRD and SEM images were used to detect phase's peaks and microstructure of all alloy sets. Vickers micro-hardness measured and Brazilian compressive tests, the results of these tests were drawing in charts with porosity and CeO2 nanoparticles percentage. From these results the best amount …

Go to article

Corrosion Activity Laser Treated Aluminum-12% Silicon Alloy With Fe And Ti Powders At Two Different Energies, Mervit Hanoos Aug 2026

Corrosion Activity Laser Treated Aluminum-12% Silicon Alloy With Fe And Ti Powders At Two Different Energies, Mervit Hanoos

Engineering and Technology Journal

In This work, the corrosion activity of laser treated almium-12%silicon alloy was tested. The addition of Fe and Ti as elemental powders was studied. Two different laser energies of 750 and 1000 kJ were used. Corrosion measurements by potential static at 3mV.sec-1in condensed synthetic automotive solution. The corrosion data show that laser treatment led to increasing corrosion resistance due to smoothness of the surface alloy because of high energy, and the corrosion resistance in the presence of Fe and Ti powders better than that in the absence of metallic powders were increased from (8.416 Ω.cm2( to )11.216 Ω.cm2( whereas corrosion …

Go to article

Physical Properties Study On Ti-C/Nano-Ceramics Composite, Ahmed Al-Ghaban, Niveen Abdulkader, Hadeel Al Baiaty Aug 2026

Physical Properties Study On Ti-C/Nano-Ceramics Composite, Ahmed Al-Ghaban, Niveen Abdulkader, Hadeel Al Baiaty

Engineering and Technology Journal

The effect of introducing Al2O3 and CuO nano particles on the physical properties of sintered Ti-C based materials has been studied. Titanium and carbon elemental powders have been mixed with nanoparticles of Al2O3 and CuO to produce composites of Ti-C/ceramics at 1100 °C. The XRD results show that for different amount of mixed nanoparticles, TiC, TiO2, and some rest of the reacted powders are the most dominant stable phases. In terms of physical properties, the results show that the raised Al2O3 percentage leads to gradually increase in apparent density of the sintered mixture as compared with the purely prepared TiC. …

Go to article

Size Miniaturized Fractal Nested Circular Rings-Shaped Microstrip Antenna For Various Wireless Applications, Shereen Shandal, Mahmood Mosleh, Mohamed Kadim Aug 2026

Size Miniaturized Fractal Nested Circular Rings-Shaped Microstrip Antenna For Various Wireless Applications, Shereen Shandal, Mahmood Mosleh, Mohamed Kadim

Engineering and Technology Journal

In this paper; a wideband fractal circular rings shaped microstrip antenna over partial rectangular ground plane is presented. Fractal geometry technique is used in order to take advantage of its self-similar property which lead to attain not only size miniaturization but also wider bandwidth and iteration method is utilized that reach up to third iteration. The proposed model is simulated by High Frequency Structural Simulator (HFSS) package. Such model is designed on FR4 substrate with a compact size of (20×18×1.5) mm3, 4.3 permittivity and 0.02 loss tangent. The microstrip line feed is used to feed this antenna with a length …

Go to article

New Accurate Wattmeter Based On Logarithmic Amplifiers, Azzad Saeed Aug 2026

New Accurate Wattmeter Based On Logarithmic Amplifiers, Azzad Saeed

Engineering and Technology Journal

Analog Computers can realize most of mathematical equations; these equations can be solved using difference, adder, logarithmic, anti-logarithmic, integrator, and differentiator amplifiers. The logarithmic and anti-logarithmic amplifiers are the main components of the analog computers, whereas, they can convert the multiplication and division operations to addition and subtraction ones, and they can convert the exponential functions to multiplication relationships. These amplifiers depend on the non-linearity of the relation between forward current and applied voltage of the diode. All of previous types of wattmeters, measure the consumed power of a specific load or resistor by multiplying the difference voltage of that …

Go to article

Applying Modern Optimization Techniques For Prediction Reaction Kinetics Of Iraqi Heavy Naphtha Hydrodesulferization, Zaidoon Shakor, Anfal Sadeiq Aug 2026

Applying Modern Optimization Techniques For Prediction Reaction Kinetics Of Iraqi Heavy Naphtha Hydrodesulferization, Zaidoon Shakor, Anfal Sadeiq

Engineering and Technology Journal

In this study, a powerful modern optimization techniques such as Genetic Algorithm (GA), Particle Swarm Optimization (PSO) and Artificial neural network (ANN) were applied to estimate the optimal reaction kinetic parameters for Heavy naphtha Hydrodesulferization (HDS), the hydrodesulferization unit located in AL-Daura refinery-Baghdad/Iraq. The reactions was carried out in a fixed-bed reactor packed with Co-Mo/γ-Al2O3 catalyst and the operating was 315-400 °C temperature 35 bar Pressure and 0.5-2.1 hr-1 liquid hourly space velocity. The result showed that hydrodesulferization of heavy naphtha follows the pseudo-first order reaction kinetics. This study signifies that the reaction kinetic parameters calculated by Genetic Algorithm was …

Go to article

Effect Of V-Shape Twisted Jaw Turbulators On Thermal Performance Of Tube Heat Exchanger: An Experimental Study, Akram Abed, Nassr Hussein, Abdulmunem Abdulmunem Aug 2026

Effect Of V-Shape Twisted Jaw Turbulators On Thermal Performance Of Tube Heat Exchanger: An Experimental Study, Akram Abed, Nassr Hussein, Abdulmunem Abdulmunem

Engineering and Technology Journal

The main purpose of the present investigation is enhancing heat transfer rate in a tube heat exchanger by using V-shape twisted Jaws. The air is used as a working fluid and pumped through the test section with different values of Reynolds number (6000 - 19500), while the heat flux has been selected as a constant boundary condition around the tube section. In this study, two type of twisted jaw turbulators are used with two twisted ratio (TR= 2 & 4) as well as, the effect of using different numbers of turbulators (N= 6, 8 and 10) inside test section with …

Go to article

Hiding 9 Gray Images In Rgb Image And Using Filters For Noise Removing, Haraa Hatem Aug 2026

Hiding 9 Gray Images In Rgb Image And Using Filters For Noise Removing, Haraa Hatem

Engineering and Technology Journal

This paper shows two major techniques, the first is steganography and the second is filters. Gaussian and median filters are used to enhance the quality of image and remove the noise. Two kinds of noise are added to RGB cover image. RGB cover image are divided in to three cover images RGB. The hiding algorithm is Least Significant Bits (LSB) which is used to hide three different images in each part of noisy cover image. The results of proposed system show that the ability of extracting secret message without errors. Normalized Correlation (NC) and Peak Signal to Noise Ratio (PSNR) …

Go to article

Geomatics Techniques To Evaluate Bus Service Coverage A Case Study On Nasiriyah, Iraq, Murtadha Satchet Aug 2026

Geomatics Techniques To Evaluate Bus Service Coverage A Case Study On Nasiriyah, Iraq, Murtadha Satchet

Engineering and Technology Journal

In this paper, geomatics techniques were used to collect, build, and analyze a geo-database of the bus transport network. Spatial identification of bus routes and bus stops using GPS was performed using GIS to link and analyze the necessary metadata with the available spatial data. The criteria used to assess bus service coverage were as follows: the spatial coverage in terms of the walking distance to the transport service, the adequacy of the transport network length, and extent of supply availability of the bus transport system. The results revealed that the population “living in 47% of the city’s urban area” …

Go to article

Difference And Contradiction Of Critique Methods To Produce Styles Of Modulation In Architecture: (Architect Peter Eisenman As Example), Basim Al-Majidi, Baneen Al-Saadawi Aug 2026

Difference And Contradiction Of Critique Methods To Produce Styles Of Modulation In Architecture: (Architect Peter Eisenman As Example), Basim Al-Majidi, Baneen Al-Saadawi

Engineering and Technology Journal

Rapid changes and developments have brought contemporary intellectual theories and different and diverse ties to highlight the different and multiple concepts contribute to the definition of any philosophy and intellect, which are frequent and mutant methods and demonstrations of the same values and origins which in turn describe the state of existence, continuity, permanence and human communication, the most important concepts are Difference and contradiction as the basis of everything, and without them there is no existence or knowledge. most contemporary studies focused on the different critical methods linked to the semantics and meanings that express architecture on the one …

Go to article

Maximizing The Value Of Decay Rate For A Vibrated Beam, Sherko Ibrahem, Tahseen Othman Aug 2026

Maximizing The Value Of Decay Rate For A Vibrated Beam, Sherko Ibrahem, Tahseen Othman

Engineering and Technology Journal

This paper presents design controllers by using control strategies and (LMI) in order to attenuate the vibrations of a beam. An Aluminum beam with fixed-fixed configuration was chosen as an application example of (AVC) of structure. Six conditions had been taken for (AVC) of the beam. In each condition the beam was the same, the changes was in the actuator and in the disturbance according to the location and the kind of the force applied. The attenuation in vibrations of this beam is in maximizing the decay rate (increasing the damping) and limiting the amplitude of the Beam. In this …

Go to article

Full State Feedback ���� And H-Infinity Controllers Design For A Two Wheeled Inverted Pendulum System, Hazem Ali, Zain. Shareef Aug 2026

Full State Feedback ���� And H-Infinity Controllers Design For A Two Wheeled Inverted Pendulum System, Hazem Ali, Zain. Shareef

Engineering and Technology Journal

In this work, two robust controllers, which are full state feedback, ��2 and full state feedback ��∞ controllers are proposed for the two wheeled inverted pendulum system. The nonlinear equations for the two wheeled inverted pendulum system are developed using Euler – Lagrange equation. The system parameters changes are considered to show the effectiveness of the proposed robust controllers. These controllers are proposed not only to stabilize the pendulum in upright position but also to drive the position to track a given reference input. The results show that more desirable robustness and time response specifications can be achieved using the …

Go to article

Optimization Of Heat Treatment Parameters For The Tensile Properties Of Medium Carbon Steel, Abbas Hussein, Laith Abbas, Wisam Hasan Aug 2026

Optimization Of Heat Treatment Parameters For The Tensile Properties Of Medium Carbon Steel, Abbas Hussein, Laith Abbas, Wisam Hasan

Engineering and Technology Journal

The purpose of this study is designate quenching and tempering heat treatment by using Taguchi technique to determination optimal factors of heat treatment (tempering temperature, percentage of nanoparticles, type of base media, nanoparticles type and tempering time)for increasing ultimate tensile strength, yield strength and ductility properties of medium carbon steel. An (L18) orthogonal array was chosen for the design of experiment. The optimum process parameters were determined by using signal-to-noise ratio (larger is better) criterion. The importance levels of process parameters on tensile properties were obtained by using analysis of variance, which applied with the help of (Minitab18) software. Percentage …

Go to article

Synthesis Of Multi-Walled Carbon Nanotubes Decorated With Zinc Oxide Nanoparticles For Removal Of Pathogenic Bacterial, Adawiya Haider, Riyad Al- Anbari, Hayder Mohammed, Duha Ahmed Ahmed Aug 2026

Synthesis Of Multi-Walled Carbon Nanotubes Decorated With Zinc Oxide Nanoparticles For Removal Of Pathogenic Bacterial, Adawiya Haider, Riyad Al- Anbari, Hayder Mohammed, Duha Ahmed Ahmed

Engineering and Technology Journal

A series of Zinc Oxide Nanoparticles (ZnONPs)-functionalized Multi-Walled Carbon Nanotubes (F-MWCNTs) Nano composites were developed as antibacterial. In this study, chemical oxidation of pristine MWCNTs were carried out with a mixture of strong acids (3H2SO4 98%:1 HNO3 65%).The F-MWCNTs were used as templates to prepare hybrid material like ZnONPs decorated F-MWCNTs. Pristine MWCNTs, F-MWCNTs and (ZnONPs/F-MWCNTs) Nano composites powder were investigated using Fourier Transform Infrared spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Anti-bacterial activity has been carried out using standard agar dilution (plate count) method against Escherichia coli (E. coli). This study demonstrated that (ZnONPs/F-MWCNTs) Nano composite has a powerful …

Go to article

Analysis And Simulation Of Unmanned Aircraft Propeller Motor Using Psim, Ahmed Yousif, Ammar Mohammed Aug 2026

Analysis And Simulation Of Unmanned Aircraft Propeller Motor Using Psim, Ahmed Yousif, Ammar Mohammed

Engineering and Technology Journal

The study and simulation of a PI speed controller for small UAV or quadcopter motor is discussed in this research. The motor under consideration is MAXON 2260 215, which is a brushless DC motor that has permanent magnets on the rotating part and the stationary windings are connected so that the back electromotive force is trapezoidal. The motor utilizes a PI controller, which dominate the duty cycle of the PWM pulses applied on the switches of the inverter so that the motor can run at the required speed. A Chopper is used as a power converter and a proportional–integral as …

Go to article

Preparation And Characterization Of Tio2 Nanoparticles And Its Applications As Antibacterial Agents, Ghadah Kahdim, Riyad Al-Anbari, Adawiay Haider Aug 2026

Preparation And Characterization Of Tio2 Nanoparticles And Its Applications As Antibacterial Agents, Ghadah Kahdim, Riyad Al-Anbari, Adawiay Haider

Engineering and Technology Journal

TiO2NP’s were synthesis by sol-gel method at different calcination temperatures. The prepared TiO2NP’s were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and UV-Vis spectrophotometer. The antimicrobial activities of the prepared TiO2NP’s were investigative for two kinds of bacteria, (Gram-negative and Gram-positive bacterium. XRD results shows that the type of the TiO2 structure was anatase (A) at low temperatures, rutile (R) with rise of calcination temperature (Tc) into 800 ᵒC and mixed phases .SEM demonstrated that the size of nanoparticles seems larger and the accumulations appears clearly with raise calcinations temperature. The optical properties measured by the UV-Vis. Spectroscopy …

Go to article

Effect Of Natural Fibers On Mechanical Properties Of Polymer Composites, Ruaa Abdulraheem Aug 2026

Effect Of Natural Fibers On Mechanical Properties Of Polymer Composites, Ruaa Abdulraheem

Engineering and Technology Journal

The mechanical behavior of coconut shell (CS) particulate epoxy composites was concentrated on keeping in mind the end goal to create designing materials for modern application. Minute of the support with various weight portions (5, 10, 15, 20 and 25) wt%. Epoxy and composite materials were prepared by hand lay-up molding. The physical properties are thermal conductivity while the mechanical properties were hardness, tensile properties, impact properties, and flexural strength. The resulting composites of thermal conductivity 0.1005 W∕ m.c° that is lower than pure epoxy and commonplace materials utilized for home-structures. As for the mechanical properties, composite materials with (Epoxy+25%CS) …

Go to article

The Influence Of Punch Profile Radius On Deep Drawing Process In Case Of A Low Carbon Steel Cylindrical Cup, Waleed Jawad, Abdullah Jaafar Aug 2026

The Influence Of Punch Profile Radius On Deep Drawing Process In Case Of A Low Carbon Steel Cylindrical Cup, Waleed Jawad, Abdullah Jaafar

Engineering and Technology Journal

This research aims to investigate the effect of punch profile radius on the drawing force, cup wall thickness, amount of spring back induced in the drawn cup, contact regions between blank and punch, strain distributions over the cup wall and height of drawn cup, in deep drawing operation. In this study, a commercial FEA software package (ANSYS11.0) was employed to model a deep drawing operation. A 3-D model of cylindrical cup of (53.4 mm) outer diameter and (33mm) height from a low carbon steel (1008–AISI) of (0.7mm) sheet thickness has been developed and then the FE simulations results are compared …

Go to article

Influence Of Saw Welding Parameters On Microhardness Of Steel A516-Gr60, Sadeq Bakhy, Samir Amin, Fouad Abdullah Aug 2026

Influence Of Saw Welding Parameters On Microhardness Of Steel A516-Gr60, Sadeq Bakhy, Samir Amin, Fouad Abdullah

Engineering and Technology Journal

Submerged Arc Welding (SAW) process is generally used for industries, such as petroleum storage tanks, pressure vessels, and structural components.Good mechanical properties of welded joint lead to crack-free strong joints. In this research, included angle, current, welding travel speed and arc voltage were utilized as welding parameters to weld ASTM A516 Grade 60 (low carbon steel). The experiments were carried out according to a design matrix that established by DOE (Version10) with RSM technique. Microhardness of welded samples was measured by a Digital Microhardness Tester, and then RSM technique was used to model and optimize the microhardness based on the …

Go to article

Study The Effect Of Micro Caco3 And Sio2 And Their Mixture On Properties Of High Strength Concrete, Ahmed Al Ghaban, Aseel Al Zubaidi, Zahraa Jawad Aug 2026

Study The Effect Of Micro Caco3 And Sio2 And Their Mixture On Properties Of High Strength Concrete, Ahmed Al Ghaban, Aseel Al Zubaidi, Zahraa Jawad

Engineering and Technology Journal

This paper investigated the effect of incorporating two types of micro particles micro CaCO3 and micro SiO2 on mechanical properties and durability of concrete. Micro materials were added in four different dosages of 1%, 2%, 3% and 4% by weight as partial replacement of cement in concrete mixture. Mechanical properties of hardened concrete (compressive strength, flexural strength and split tensile strength) have been done after 28 days of water curing. In addition, water absorption test was carrying out for obtaining the durability properties of concrete specimen. Binary combination of micro CaCO3 + micro SiO2 were also studied the combined effect …

Go to article

Microstructure And Electrical Conductivity Of 7075al Alloy/Sic Nano Composites, Hussain Al-Alkawi, Sameir Aziez, Deana Idan Aug 2026

Microstructure And Electrical Conductivity Of 7075al Alloy/Sic Nano Composites, Hussain Al-Alkawi, Sameir Aziez, Deana Idan

Engineering and Technology Journal

Analysis using scanning electron microscope (SEM) at high magnification showed that the microstructure of the nano composites exhibited uniform distribution of SiC particles and less porosity. The experimental results revealed that adding Nano Reinforcement to 7075Al alloy improve the electrical conductivity for the metal matrix composites with 3, 6, 9 wt. % SiC were adopted in this work. The maximum enhancements were observed at 9wt. %SiC of 5200(Ω. m) -1 compared with the metal base of 35 (Ω. m) -1.

Go to article

Studies On Characterization Of Sawdust For Application In A Gasification Process For Syngas Production, Abdul Hameed Al-Obaidy, Riyad Al-Anbari, Hussein Kadhim Aug 2026

Studies On Characterization Of Sawdust For Application In A Gasification Process For Syngas Production, Abdul Hameed Al-Obaidy, Riyad Al-Anbari, Hussein Kadhim

Engineering and Technology Journal

Quintessential characteristics of sawdust were investigated in this study as well as to to investigate the ability of reed as a Production of gases via gasification technique by using special gasifier made for this purpose. The physical properties of solid waste results showed that sawdust were suitable for using in production of syngas due to its high volatile matter and cellulose content and low moisture content. The CHNS analysis results showed that high content of hydrogen for sawdust has generated higher amount of syngas heat value, while gravimetric analysis results showed that high cellulose and hemicellulose content gave higher concentration …

Go to article

Biosorption Technique For Naphthalene Removal From Aqueous Solution By Chara Sp., Algae, Talib Albayati, Khairi Kalash Aug 2026

Biosorption Technique For Naphthalene Removal From Aqueous Solution By Chara Sp., Algae, Talib Albayati, Khairi Kalash

Engineering and Technology Journal

These instructions give guidelines for preparing the article to be published in the Engineering& Technology Journal using MS World 7.0 or later. A short abstract should open the paper and give a clear indication of the aims, scope and the main results of the paper. The reader may decide from the abstract that the full text is of particular interest or not. The author should consider that the abstract is an indication of the scope of the topic and the obtained results and not a way of condensing the problem in a few words for quick reading. It should be …

Go to article

Design And Performance Analysis Of Contact Lens Materials For Chromatic And Polychromatic Aberrations Correction, Ali Al-Hamdani Aug 2026

Design And Performance Analysis Of Contact Lens Materials For Chromatic And Polychromatic Aberrations Correction, Ali Al-Hamdani

Engineering and Technology Journal

A material scientists worldwide has investigated optical plastics as alternative materials for glasses that have been widely used over the years. Plastics have numerous advantages over glasses in optical applications, especially in ophthalmic applications. Recently, researchers have developed new polymer materials to satisfy the ophthalmic industry requirements. Mechanical, chemical and physical tests were conducted to determine the polymers for contact lenses. In this study, the optical properties of polymers were evaluated and analyzed by using Zemax program depending on Liou & Brennan model. The effect of achromatic and polychromatic light on the performance of the polymers contact lenses was investigated. …

Go to article

First Prev Next Last