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The Solubility Of Phosphogypsum And Recovery Of Heavy And Radioactive Elements, Waleed Rashid, Israa Alkadir, Moayyed Jalhom Aug 2026

The Solubility Of Phosphogypsum And Recovery Of Heavy And Radioactive Elements, Waleed Rashid, Israa Alkadir, Moayyed Jalhom

Engineering and Technology Journal

The essential purpose of this paper is to illustrate and inspect the leaching characteristics of Iraqi Phosphogypsum (PG). The paper presents the results of the dissolution characteristics of heavy and radioactive elements from PG, which is a by-product result from the industry of phosphate fertilizers. Leachability of heavy and radioactive elements in deionized water that has been inspected under various states of leaching, including solid/liquid ratio (10, 20 and 50 /1g/L) and temperatures (25, 45 and 85 °C), with constant other parameters such as string speed (300 rpm) and contact time (60 minutes). For the most analysis elements, the progressive …

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Adsorption Desulfurization Of Actual Heavy Crude Oil Using Activated Carbon, Yusra Abd Al-Khodor, Talib Albayati Aug 2026

Adsorption Desulfurization Of Actual Heavy Crude Oil Using Activated Carbon, Yusra Abd Al-Khodor, Talib Albayati

Engineering and Technology Journal

The strict new regulations to reduce the sulfur content of fuel require new economical and efficient ways to remove the sulfur from the organic sulfur components. In the current work, sulfur was removed from the actual crude oil containing 2.5 wt.% from southern Iraq, specifically the Halfaya Oil Field was studied using adsorption desulfurization with activated carbon (AC). The effects of different operating conditions, including the dose of AC (0.2-1.0 gm), time (15–120 min) and temperature (30–50°C) were investigated. The best operating conditions were obtained as 0.8 gm AC, 90 minutes and 50℃, respectively. Langmuir, Freundlich and Temkin isotherm models …

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The Effects Of Sunlight On Particle Matter & Radiation Pollution In Baghdad Airport Area, Fatima Hameed, Faris Mohammed, Abdul Hameed Al-Obaidy Aug 2026

The Effects Of Sunlight On Particle Matter & Radiation Pollution In Baghdad Airport Area, Fatima Hameed, Faris Mohammed, Abdul Hameed Al-Obaidy

Engineering and Technology Journal

The gasses emitted from the various activities, in addition to particle matter (PM10) play a major role in air quality deterioration. Particles matter and radiation are two of the most important parameters that exist in airports and were evaluated considering the variations in sunlight energy. The measured values were collected from eleven sites, which were chosen based on their influence by aviation activities. The measurements were compared to the (Iraqi Regulations and U.S EPA) for particle matter. While for radiation, the measurements were compared with the U.S. National Institute of Health (NIH), International Commission on Radiological Protection (ICRP), and the …

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Redesign Of Water Filter Workshop Using Slp, Nrjis Bassim, Luma Al-Kindi Aug 2026

Redesign Of Water Filter Workshop Using Slp, Nrjis Bassim, Luma Al-Kindi

Engineering and Technology Journal

Workshop and factory design is one of the most important problems facing companies to enhance their performance and productivity. Facility layout issue is a fundamental fragment of accommodations planning which have a target of organize all manufacturing entities to be located as a facility having the objective to improve manufacturing processes for an organization. The aim of this paper is to study, evaluate and then creating an improved water filter workshop adopting Muther’s (SLP) Systematic Layout Planning Procedure for increasing production and utilizing spaces. The case study in this paper is a practical one for the existing layout in Al-Faris …

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Extraction Of Zirconium From Iraqi Bauxite Ore, Israa Aziz, Moayyed Jalhom, Muhanad Kheriallah Aug 2026

Extraction Of Zirconium From Iraqi Bauxite Ore, Israa Aziz, Moayyed Jalhom, Muhanad Kheriallah

Engineering and Technology Journal

This research is devoted to the study of the extraction of zirconium from Iraqi Bauxite Ore by using hydrometallurgical method. The chemical analysis was done to the bauxite ore by using X-ray florescence, X-ray diffraction and atomic absorption spectroscopy. Zirconium Extraction was performed via three stages; the first stage is leaching of bauxite with sodium hydroxide for alumina leaching. The second stage is leaching of zirconium species from the remained powder produced from stage one after washing with deionized water and, nitric acid (HNO3 solutions). The results of the first stage has reflected the recovery of 42.27 % of Al2O3 …

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Properties And Behavior Of Starch Biopolymer Concrete, Waleed Abbas, Hawraa Mohsen Aug 2026

Properties And Behavior Of Starch Biopolymer Concrete, Waleed Abbas, Hawraa Mohsen

Engineering and Technology Journal

Starch act as natural polymer has been got from Wheat, Tapioca, and Corn. Corn starch has been investigated as biopolymer and has been added to concrete in different percentages (0%, 0.5%, 1%, and 1.5%) by cement weight and the study shows the effect of using starch on some properties of concrete in the fresh state ( slum and fresh density) and at hardened state (compressive strength, splitting tensile strength and flexural strength) at 28 days. The mix proportion was(1:2.3:2.3) (cement: sand: gravel) respectively and at constant w/c equal to 0.47.The results indicate that the optimum percentage of starch addition was …

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The Formability And Elongation Of Aluminum Alloys Aa5083 And Aa3003 For Micro-Truss Sandwiches Manufacturing, Arwa Tawfeeq, Matthew Barnett Aug 2026

The Formability And Elongation Of Aluminum Alloys Aa5083 And Aa3003 For Micro-Truss Sandwiches Manufacturing, Arwa Tawfeeq, Matthew Barnett

Engineering and Technology Journal

The development in the manufacturing of micro-truss structures has demonstrated the effectiveness of brazing for assembling these sandwiches, which opens new opportunities for cost-effective and high-quality truss manufacturing. An evolving idea in micro-truss manufacturing is the possibility of forming these structures in different shapes with the aid of elevated temperature. This work investigates the formability and elongation of aluminum alloy sheets typically used for micro-truss manufacturing, namely AA5083 and AA3003. Tensile tests were performed at a temperature in the range of 25-500 ○C and strain rate in the range of 2x10-4 -10-2 s-1. The results showed that the clad layer …

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Path Planning Of Mobile Robot Using Improved Artificial Bee Colony Algorithm, Rkaa Kamil, Mohamed Mohamed, Bashra Oleiwi Aug 2026

Path Planning Of Mobile Robot Using Improved Artificial Bee Colony Algorithm, Rkaa Kamil, Mohamed Mohamed, Bashra Oleiwi

Engineering and Technology Journal

A modified version of the artificial Bee Colony Algorithm (ABC) was suggested namely Adaptive Dimension Limit- Artificial Bee Colony Algorithm (ADL-ABC). To determine the optimum global path for mobile robot that satisfies the chosen criteria for shortest distance and collision–free with circular shaped static obstacles on robot environment. The cubic polynomial connects the start point to the end point through three via points used, so the generated paths are smooth and achievable by the robot. Two case studies (or scenarios) are presented in this task and comparative research (or study) is adopted between two algorithm’s results in order to evaluate …

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Study Of The Influence Of Different Variables On Clathrate Practical Applications In Phenol Removal, Riyadh Al- Mukhtar, Shurooq Remedhan, Marwa Hussin Aug 2026

Study Of The Influence Of Different Variables On Clathrate Practical Applications In Phenol Removal, Riyadh Al- Mukhtar, Shurooq Remedhan, Marwa Hussin

Engineering and Technology Journal

In this work, effluent wastewater treated by using cyclopentane-water Clathrate system to treat water contaminates with phenols at concentrations (300, 250, 200, 150, 100 and 50) ppm in order to investigate the capability of process performance. Clathrate or hydrate are strong crystal structures including water (host particles) and little particles (guest particles). The experiments were conducted at different cyclopentane-water volume ratios (1: 2 and 1: 4). The work was done in a 250 ml glass cell with an electric mixer at a constant speed of 280 cycles per minute. Phenol was highest removal percent at 300ppm at 1: 4volume ratio …

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Enhancement Of Edm Performance By Using Copper-Silver Composite Electrode, Saad Shather, Abbas Ibrahim, Zainab Mohsein, Omar Hassoon Hassoon Aug 2026

Enhancement Of Edm Performance By Using Copper-Silver Composite Electrode, Saad Shather, Abbas Ibrahim, Zainab Mohsein, Omar Hassoon Hassoon

Engineering and Technology Journal

Discharge Machining is a non-traditional machining technique and usually applied for hard metals and complex shapes that difficult to machining in the traditional cutting process. This process depends on different parameters that can affect the material removal rate and surface roughness. The electrode material is one of the important parameters in Electro –Discharge Machining (EDM). In this paper, the experimental work carried out by using a composite material electrode and the workpiece material from a high-speed steel plate. The cutting conditions: current (10 Amps, 12 Amps, 14 Amps), pulse on time (100 μs, 150 μs, 200 μs), pulse off time …

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Optimal Model Reference Control Scheme Design For Nonlinear Strict-Feedback Systems, Musadaq Hadi, Hazem Ali Aug 2026

Optimal Model Reference Control Scheme Design For Nonlinear Strict-Feedback Systems, Musadaq Hadi, Hazem Ali

Engineering and Technology Journal

In this paper, a new design of the model reference control scheme is proposed in a class of nonlinear strict-feedback system. First, the system is analyzed using Lyapunov stability analysis. Next, a model reference is used to improve system performance. Then, the Integral Square Error (ISE) is considered as a cost function to drive the error between the reference model and the system to zero. After that, a powerful metaheuristic optimization method is used to optimize the parameters of the proposed controller. Finally, the results show that the proposed controller can effectively compensate for the strictly-feedback nonlinear system with more …

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Integration Of Cad/Cae/Rp Environment For Developing A New Product In Medical Field, Nabeel Allawy, Amjad Abdulghafour Aug 2026

Integration Of Cad/Cae/Rp Environment For Developing A New Product In Medical Field, Nabeel Allawy, Amjad Abdulghafour

Engineering and Technology Journal

Reconstruction of the mandible after severe trauma is one of the most difficult challenges facing oral and maxillofacial surgery. The mandible is an essential element in the appearance of the human face that gives the distinctive shape of the face, holds. This paper aims to propose a methodology that allows the surgeon to perform virtual surgery by investing engineering programs to place the implant by default and with high accuracy within the mandible based on the patient's medical data. The current study involved a 35-year-old man suffering from a traffic accident in the mandible with multiple fractures of the facial …

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Numerical And Experimental Modeling Of Indoor Air Quality Inside A Conditioned Space With Mechanical Ventilation And Dx-Air Conditioner, Wisam Mareed, Hasanen Hussen Aug 2026

Numerical And Experimental Modeling Of Indoor Air Quality Inside A Conditioned Space With Mechanical Ventilation And Dx-Air Conditioner, Wisam Mareed, Hasanen Hussen

Engineering and Technology Journal

Elevated CO2 rates in a building affect the health of the occupant. This paper deals with an experimental and numerical analysis conducted in a full-scale test room located in the Department of Mechanical Engineering at the University of Technology. The experiments and CFD were conducted for analyzing ventilation performance. It is a study on the effect of the discharge airflow rate of the ceiling type air-conditioner on ventilation performance in the lecture room with the mixing ventilation. Most obtained findings show that database and questionnaires analyzed prefer heights between 0.2 m to 1.2 m in the middle of an occupied …

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The Hybrid (Pvt) Double-Pass System With A Mixed-Mode Solar Dryer For Drying Banana, Abdullateef Jadallah, Mohammed Alsaadi, Saifalddeen Hussien Aug 2026

The Hybrid (Pvt) Double-Pass System With A Mixed-Mode Solar Dryer For Drying Banana, Abdullateef Jadallah, Mohammed Alsaadi, Saifalddeen Hussien

Engineering and Technology Journal

This paper proposes a developed numerical and experimental design of a hybrid Photovoltaic-Thermal (PVT) double-pass counter-flow system connected with the mixed-mode solar dryer system. The mixed-mode solar dryer considers the most efficient mode because it has two heat sources, from solar radiation and the hot airflow which is supplied by the PVT system. The PVT system is often unused for drying applications; therefore, the whole proposed PVT solar system in this work is utilized for drying applications. This system is not only massive fuel savings, but also crucial to improve the quality of the dried product in terms of color, …

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Direct Current Deadbeat Predictive Controller For Bldc Motor Using Single Dc-Link Current Sensor, Qaed Ali, Mohammed Ezzaldean Aug 2026

Direct Current Deadbeat Predictive Controller For Bldc Motor Using Single Dc-Link Current Sensor, Qaed Ali, Mohammed Ezzaldean

Engineering and Technology Journal

BLDC motors are characterized by electronic commutation, which is performed by using an electric three-phase inverter. The direct control system of the BLDC motor consists of double loops; including the inner-loop for current regulating and outer-loop for speed control. The operation of the current controller requires feedback of motor currents; the conventional current controller uses two current sensors on the ac side of the inverter to measure the currents of two phases, while the third current would be accordingly calculated. These two sensors should have the same characteristics, to achieve balanced current measurements. It should be noted that the sensitivity …

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Experimental Study On Performance And Emission Characteristic Of Diesel Engine Using Sunflower Oil Biodiesel Blends, Ghassan Ali, Abed Al-Kadim Hassan Aug 2026

Experimental Study On Performance And Emission Characteristic Of Diesel Engine Using Sunflower Oil Biodiesel Blends, Ghassan Ali, Abed Al-Kadim Hassan

Engineering and Technology Journal

Biodiesel fuel is a liquid biofuel produced by chemical process form new and used phytogenic oils, animal fats. Biodiesel fuels can be utilization alone or mixing with the pure diesel at different proportion. In the present work a diesel engine type (FIAT) , four cylinder, variable speed, direct injection was operated by sunflower oil methyl ester , biodiesel at different blend ratio . five different ratio of biodiesel blends 10%, 20%, 30%, 40%, and 50% by volume is used in this study and compared with using of pure diesel at variable loads and variable engine speed. The effect of biodiesel …

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Removal Of Iron From Produced Water Using Silica Adsorbent Material, Zamen Mekhelf, Akeel Subhi, Ramzy Hamied Aug 2026

Removal Of Iron From Produced Water Using Silica Adsorbent Material, Zamen Mekhelf, Akeel Subhi, Ramzy Hamied

Engineering and Technology Journal

The removal of Iron from produced water using adsorbent materials is taking a space of attention from the perspective of researchers. In this work, the characterization of chemically modified silica used as Iron ions adsorbent using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), laser granularity instrument was performed. The point of zero charge (PZC) of modified silica was determined using titration method. Different parameters were used to better approach Iron removal. These parameters are 0.2 and 0.4 mg/l modified silica adsorbent dose, 30-180 min adsorption time and pH values of 4-10. The results showed that modified silica exhibited …

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Preparation And Study Of Flexural Strength And Impact Strength For Hybrid Composite Materials Used In Structural Applications, Teeb Mohameed, Sihama Salih, Wafaa Salih Aug 2026

Preparation And Study Of Flexural Strength And Impact Strength For Hybrid Composite Materials Used In Structural Applications, Teeb Mohameed, Sihama Salih, Wafaa Salih

Engineering and Technology Journal

Many of the polymeric materials used for structural purposes have weak mechanical properties, these characteristics can therefore be improved by preparing a hybrid laminar composite. In this work use melting mixing method using screw extruder to prepare sheets of polymer blends and nanocomposites based on polymer blends, and using a hot hydraulic press machine to prepared hybrid laminates composites. Two groups of hybrid laminar composites were prepared, the first group is consist of [((94%PP: 5%PMMA: 1 %( PP-g-MA)): 0.3% ZrO2): 6%KF and 8%KF] and the second group is [((94%PP: 5%UHMWPE: 1 %( PP-g-MA)): 0.3% ZrO2): 6%KF and 8%KF]. The results …

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Hollow Fiber Ultrafiltration Membrane For Methyl Green Dye Removal, Saja Alardhi, Jamal Alrubaye, Talib Albayati Aug 2026

Hollow Fiber Ultrafiltration Membrane For Methyl Green Dye Removal, Saja Alardhi, Jamal Alrubaye, Talib Albayati

Engineering and Technology Journal

In this study, the behavior of a Polyvinyl chloride (18 wt % PVC) hollow fiber ultrafiltration (UF) membrane for methyl green (MG) dye removal from aqueous solution was estimated by studying the influence of varying the operation conditions (the concentration of the dye and volumetric flow rate) to determine their impact on the separation processes (permeate flux and rejection coefficient) at constant pressure and temperature. The PVC membrane was characterized by scanning electron microscopy. Furthermore, tests of the UF were carried out with pure water and MG aqueous solutions as feed. Outcomes explained a notable influence of feed concentration and …

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Synthesis And Characteristics Of Acetylated Corn Cob Powder/ Unsaturated Polyester Composite, Assala Oribe, Kadhum Shabbeb, Ayad Hassan Aug 2026

Synthesis And Characteristics Of Acetylated Corn Cob Powder/ Unsaturated Polyester Composite, Assala Oribe, Kadhum Shabbeb, Ayad Hassan

Engineering and Technology Journal

In this research, the composite material was prepared from untreated and treated corn cob powder by acetylation process and the physical and mechanical properties have been studied. Cellulose is extracted using the Kürchner-Hoffer method and then acetylated. Untreated corn cob powder and Acetylated corn cob powder were mixed with unsaturated polyester resin in different concentrations (0, 1, 2, and 3 wt. %). The Mechanical and the physical test results showed that there is an enhanced in mechanical properties (Tensile, Impact, Hardness, and Bending) with the treatment (Acetylation) by increasing treated corn cob powder mass fraction (1, 2, and 3wt. %) …

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Effect Of Heating Borehole Spacing On Plasticity Of Expansive Soil, Falah Rahil, Husam Baqir, Nabeel Tumma Aug 2026

Effect Of Heating Borehole Spacing On Plasticity Of Expansive Soil, Falah Rahil, Husam Baqir, Nabeel Tumma

Engineering and Technology Journal

This paper presents the effect of spacing between boreholes heating on plasticity of expansive soils. The expansive soils used were prepared artificially by mixing Kut clay with different percentages of bentonite. Nine laboratory models of expansive soils having dry unit weight of 17.8 kN/m3 with 6% initial water content were prepared inside a steel box of (300 mm × 300 mm × 400 mm height). A special heating system generates 400 Co for six hours was designed and manufactured for this purpose using 12 mm diameter electric heaters inserted through boreholes. Square pattern boreholes of 170 mm length with spacing …

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Experimental Investigation Of Thermodynamics, Kinetics, And Equilibrium Of Nickel Ion Removal From Wastewater Using Zinc Oxide Nanoparticles As The Adsorbent, Shurooq Remedhan Aug 2026

Experimental Investigation Of Thermodynamics, Kinetics, And Equilibrium Of Nickel Ion Removal From Wastewater Using Zinc Oxide Nanoparticles As The Adsorbent, Shurooq Remedhan

Engineering and Technology Journal

In the present study commercial zinc oxide (ZnO) nanoparticles in the size of 30 nm were utilized as an adsorbent for the removal of Ni (II) ion from synthetic waste aqueous solution. Adsorption capacity of ZnO for removing Ni (II) ions from aqueous solutions was measured at different pH, adsorbent dose, contact time, temperature and metal ion concentration. Moreover,  adsorption isotherms, kinetics and thermodynamics were studied to understand  the  nature  and  mechanism  of  adsorption. ZnO nanoparticles were characterized by X-Ray diffract analysis(XRD),Fourier Transform Infrared Spectroscopy(FT-IR), scanning electron microscopy (SEM),energy dispersive X-ray spectroscopy(EDS) and Brunauer-Emmett-Teller (BET). The maximum amount of Ni …

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Flexural And Impact Properties Of Epoxy Composites Reinforced With Peanut Shell Particles, Hwazen Fadhil Aug 2026

Flexural And Impact Properties Of Epoxy Composites Reinforced With Peanut Shell Particles, Hwazen Fadhil

Engineering and Technology Journal

Natural materials have been extensively used as reinforcements in polymer matrices instead of non-degradable synthetic reinforcement such as carbon, glass or aramid. The use is because of their low density, good mechanical properties, availability, and biodegradability. Peanut shell is one such natural waste filler used, and it contains cellulose, hemicellulose, and lignin. Natural fiber/particle sources are not only strong and lightweight but are relatively very cheap. This paper offers the comparison of the flexural, and impact energy test properties of the peanut shell reinforced with the epoxy resin matrix. Peanut shells add into the epoxy resin matrix with various weight …

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Erosion Wear Behavior Of Natural And Industrial Material For Polymer Matrix Composite By Using Taguchi Analysis, Marwa Atallah Aug 2026

Erosion Wear Behavior Of Natural And Industrial Material For Polymer Matrix Composite By Using Taguchi Analysis, Marwa Atallah

Engineering and Technology Journal

The behavior of the erosion wear for samples manufactured by hand layup method of epoxy-supported fiberglass, eggshells and calcium carbonate particles were investigated. The test was performed in accordance with the experimental designs Taguchi (L 9) MINITAB (19) to select samples that have the resistance to erosion under the influence of factors. The erosion rate was assessed under the influence of three factors: weight fraction (2% to 8% eggshells and CaCO3 particles), sand size (450, 650, 850 μm) and angles (30º, 60º, 90º) with a fixed face distance of 30 cm, 10 hours and a flow rate of 45 L/min. …

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Studying The Settlement Of Backfill Sandy Soil Behind Retaining Wall Under Dynamic Loads, Reham Hamdi, Mohamed Fattah, Mohammed Aswad Aug 2026

Studying The Settlement Of Backfill Sandy Soil Behind Retaining Wall Under Dynamic Loads, Reham Hamdi, Mohamed Fattah, Mohammed Aswad

Engineering and Technology Journal

For a long time, the seismic examination of retaining walls has been contemplated by a few strategies dependent on the basic augmentation of Coulomb's limit equilibrium investigation. These techniques cannot gauge the removal of the refill soil upheld by the wall. A trial examination is completed to contemplate the vertical settlement on sandy soil under dynamic loads with other burden amplitudes, vibration frequencies, relative density, and various separations between the establishment and holding divider. The model balance utilized in this investigation is square. Dynamic burden test is done on cohesion less soil with three burden amplitudes (0.25 ton, 0.5 ton …

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Influence Of Polarity Of Electro Discharge Machine (Edm) On Surface Roughness (Sr) And Metal Removal Rate (Mrr) Of Low Carbon Steel, Shahd Taqi, Saad Shather Aug 2026

Influence Of Polarity Of Electro Discharge Machine (Edm) On Surface Roughness (Sr) And Metal Removal Rate (Mrr) Of Low Carbon Steel, Shahd Taqi, Saad Shather

Engineering and Technology Journal

Electro discharge machining (EDM) is one of a thermal process that is used for remove of metal from the workpiece by spark erosion. The work of this machine depends on multiple variables. One of the more influential variants on this machine is the change of polarity and the use of this variable is not wide and the research depends on the polarity of the machinist. Essentially, the polarity of the tool (electrode) is positive and the workpiece is negative, this polarity can be reversed. This paper focuses on the influence of changing the polarity (positive and negative) on the surface …

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Impact Strength, Flexural Modulus And Wear Rate Of Pmma Composites Reinforced By Eggshell Powders, Aseel Abdullah, Hussein Jaber, Hanaa Al-Kaisy Aug 2026

Impact Strength, Flexural Modulus And Wear Rate Of Pmma Composites Reinforced By Eggshell Powders, Aseel Abdullah, Hussein Jaber, Hanaa Al-Kaisy

Engineering and Technology Journal

In the present study, the impact strength, flexural modulus, and wear rate of poly methyl methacrylate (PMMA) with eggshell powder (ESP) composites have been investigated. The PMMA used as a matrix material reinforced with ESP at two different states (including untreated eggshell powder (UTESP) and treated eggshell powder (TESP)). Both UTESP and TESP were mixed with PMMA at different weight fractions ranged from (1-5) wt.%. The results revealed that the mechanical properties of the PMMA/ESP composites were enhanced steadily with increasing eggshell contents. The samples with 5 wt.% of UTESP and TESP additions give the maximum values of impact strength, …

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Process Capability Analysis To Assess Capacity Of A Cleaning Liquid Product With Asymmetric Tolerances, Sohaib Khlil, Huthaifa Al-Khazraji, Zina Alabacy Aug 2026

Process Capability Analysis To Assess Capacity Of A Cleaning Liquid Product With Asymmetric Tolerances, Sohaib Khlil, Huthaifa Al-Khazraji, Zina Alabacy

Engineering and Technology Journal

Process capability indices are a powerful tool used by quality control engineering to measure the degree to which the process is or is not meeting the requirements. This paper studies the application of process capability indices in the evaluation of a process with asymmetric tolerances. The analyzed collected data of the cleaning liquid “Zahi”, was used to investigate the ability of the filling process to meet the requested specifications. Matlab software was used to plot ̅ ̅ control charts, normal probability, and histogram of the data gathered from the production line and further performed statistical calculations. It was observed from …

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Hydrological Model For Derbendi-Khan Dam Reservoir Watershed Using Swat Model, Thair Khayyun, Imzahim Abdulkareem, Ali Hayder Aug 2026

Hydrological Model For Derbendi-Khan Dam Reservoir Watershed Using Swat Model, Thair Khayyun, Imzahim Abdulkareem, Ali Hayder

Engineering and Technology Journal

In this study, the watershed’s runoff of Derbendi-Khan dam reservoir within the upper part of Diyala River reach the northeast of Iraq was modeled by Soil Water Assessment Tool (SWAT). The model calibration and validation were based on monthly measured inflow to the dam reservoir. They extended for a period between 1979 and 2008 with a warm-up period of two years, twenty-year for calibration, and eight-year for validation. Sequential Uncertainty Fitting version 2 (SUFI2) automatic calibration algorithm method used for model calibration and sensitivity analysis. Results demonstrate that the model performance for the studied watershed which is evaluated, with many …

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Properties Of Self-Compacting Cementitious Composite Materials Containing Cement Kiln Dust Powder, Ahmed Kadhim, Alaa Atiyah, Shakir Salih Aug 2026

Properties Of Self-Compacting Cementitious Composite Materials Containing Cement Kiln Dust Powder, Ahmed Kadhim, Alaa Atiyah, Shakir Salih

Engineering and Technology Journal

This paper aims to investigate the influence of utilization micro cement kiln dust as a sustainable materials additive in order to reduce the voids and micro cracks in the cementitious mortar materials which cause a drastic reduction in the load carrying capacity of the element. Its therefore very important to decrease the pores and enhance the mechanical strength of the cementitious composite materials. In this article, the properties of self-compacting mortar containing micro cement dust additive was experimentally assessed. Micro cement dust powder was added to the self-compacting mortar in (1, 2, 3, 4 and 5 %) percentage by weight …

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