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Tikrit Journal of Engineering Sciences
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ISSN 1813-162X · Tikrit University · 1,606 articles in the index
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Journal Article
A Specialised Computing Device for Multiplying Square Binary Matrices Based on Multiport Parallel-Pipelined Memory
This article considers matrix multiplication in the problem of finding the transitive closure of a binary relation with the transitivity property, as well as in the construction of the reachability and counter-reachability matrices in general graphs. An analysis of approaches to practical…
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Journal Article
Influence of Particle Size Reduction on Combustion Properties and Thermal Behaviour of Agricultural Biomass
Particle size distribution is a critical determinant in the thermochemical conversion of lignocellulosic biomass. This research evaluates the impact of comminution on the calorific value and thermal kinetics of wheat straw, corn stalks, and hardwood chips (0.25–2.0 mm fractions). Experimental…
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Journal Article
Integration of Shallow Geothermal Energy Systems into Foundation Structures of High-Rise Buildings for Enhanced Energy Efficiency
This study investigates the feasibility and performance of integrating shallow geothermal energy systems into the structural foundations of high-rise buildings with developed underground parts. A comprehensive experimental program was conducted, including field measurements of soil thermal…
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Journal Article
Artificial Neural Network–Guided Optimization of Microwave-Assisted Biodiesel Production Using a Zn–Ce-Loaded Agro-Waste Activated Carbon Bifunctional Catalyst
Catalyst limits and the intricate, nonlinear interaction of operating parameters make it difficult to produce biodiesel from low-cost, high-free fatty acid feedstocks in an efficient and sustainable manner. By combining artificial intelligence-based process optimization with a bifunctional…
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Journal Article
Analysis of Dynamics and Stability of an Eight-Dimensional Machining System with Cryptographic Applications
When studying dynamic systems, the Hamilton function and Lyapunov stability theory are integral to understanding and maintaining them. In the present paper, an eight-dimensional nonlinear system will be considered, and its potential for use in safety applications will be evaluated. In…
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Journal Article
The Role of Some Agricultural Waste as Adsorbent in Removing Paracetamol from Simulated Wastewater
The presence of residual pharmaceuticals in the aquatic system is a significant concern for ecological risk, requiring the advancement of sustainable remediation technology. This study investigates the adsorptive performance of local agricultural wastes—sawdust (SD) and olive stones (OS)—as…
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Journal Article
Enhancing High-Density Polyethylene with Yellow Oil Fly Ash: Mechanical, Physical, and Tribological Behavior Analysis
Fly ash-reinforced polymer composites, known for their advantageous properties and environmental sustainability, have gained popularity. Heavy fuel oil fly ash, particularly yellow oil fly ash (YOFA), could serve as an enforcement component due to its mechanical properties. This study aims to…
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Journal Article
Miniaturized and Low SAR Printed Antenna for Healthcare Monitoring
A miniaturized medical antenna with dual-band operation in the Industrial, Scientific, and Medical (ISM) bands is presented with a low specific absorption rate (SAR) for recommended safety limits. The proposed antenna with dimensions (27.6 mm × 28.2 mm × 0.32 mm) is considered suitable for medical…
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Journal Article
Experimental Evaluation of Internal Finned Storage Tank of an Integrated Solar Water Heater with Corrugated Absorber Plate for Domestic Usage
Integrated storage solar water heaters (ICS-SWH) are among the simplest and lowest-cost technologies for collecting and storing heat in a single vessel. In the present work, the impact of adding fins within the corrugated storage tank, between the absorber's lower surface and the tank bottom, was…
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Journal Article
Evaluate the Effect of a High-k Gate Dielectric on MOSFET Performance Using Silvaco TCAD Simulation
One of the significant problems with MOSFET scaling down is oxide breakdown and tunneling current. One way to address this problem is to adopt silicon-based MOSFETs with high-k dielectric materials in their gates that work well as substitutes for traditional SiO2 gates. Because high-k oxides reduce…
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Journal Article
Review of the Behavior of Geogrid-Reinforced Sand Soil Supported a Shallow Footing under Different Loadings
The soil can be subjected to different static loads, i.e., centric, eccentric, and inclined, and dynamic loads, i.e., repeated and seismic. Under such loads, the soil can suffer from deterioration of the soil bearing capacity, extensive deformation, and rotation. Soil reinforcement is a technique…
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Journal Article
Investigation of Carbon Emission from Construction Waste in the Building Construction Process
Significant efforts have been made to reduce carbon emissions across the design, building, and operation phases of construction. However, there is a lack of focus on measuring carbon emissions from the recycling of building waste at the end-of-life stage. The objective of this study is to conduct a…
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Journal Article
Removal of Methylene Blue Dye from Wastewater Using a Local Iraqi Natural Plant Polypogon Monspeliensis
The present work investigated the use of Polypogon monspeliensis (PM) as an environmentally friendly and economical adsorbent for the removal of methylene blue (MB) from simulated wastewater. Both batch and column adsorption experiments were carried out to examine the adsorption performance under…
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Journal Article
Soft Computing-Based Model for the Ultimate Strength Prediction of Concrete-Filled Circular-Steel Columns
Concrete-filled steel tube (CFST) columns are popular in construction because of the composite effect between the inside concrete and the outside steel tube, improving structural resistance. Accurately predicting the axial compression capacity of CFST columns is critical to maintaining structural…
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Journal Article
Sustainable and Recycled Materials Additives for Tire Rubber Manufacturing: A Review
Material scientists and researchers aim to create durable, manufacturable, affordable, and lightweight materials. Nanomaterials have attracted significant attention due to their distinct physical and chemical properties, which are most commonly employed in automobile tires. Tires are manufactured…
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Journal Article
Experimental Assessment of the Performance of the Snake Robot
A snake robot is a bio-inspired robotic system that mimics the form and motion of a snake. The present research presents pressure-bending angle and the pressure-applied force relationships for three metamaterial-based pneumatic robot actuator models of different sizes, designed in SolidWorks and…
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Journal Article
Surface Response Optimization for Absorption of CO2 Bubbles in Sweetener Solution by the Gas-Liquid Mass Transfer Operation
There is a trend to produce soft drinks with new specifications by increasing the amount of carbon dioxide absorbed in them but within the permissible food specifications limits. The experimental investigation of physical absorption was conducted in a bubble column to determine carbon dioxide…
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Journal Article
Assessment of Mechanical Performance of Fiber Reinforced Geopolymer Concrete at Different Curing Conditions
The building industry has made extensive use of types of concrete in recent decades. Geopolymer Concrete is one of several common types of concrete and does not require a water spray after casting. The research was limited to the use of industrial waste and waste harmful to disposal in structural…
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Journal Article
Numerical Investigation of the Effect of Post Notching Size and Location on the Behavior of Reinforced Concrete Beam before and after Strengthening
Some structural concrete projects suffered from post-casting changes or modifications to accommodate pipe services due to inefficient initial planning or management. This study aims to evaluate the performance of a reinforced concrete beam with dimensions of 300 mm x 600 mm x 3800 mm for width…
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Journal Article
Influence of Fiber Fillers on The Ballistic Properties of Epoxy and Polyester Resins: A Review
Ballistic shields are considered a tactical measure to protect high-risk areas. Due to their advanced design, they provide effective protection against fragments and projectiles, reducing fatalities and preserving lives under adverse conditions. Therefore, researchers have focused on the importance…
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