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Disaster Management-Based Internet Of Things Using Wireless Sensor Networks, Ali Abed, Anas Hussien, Lara Falaha Mar 2026

Disaster Management-Based Internet Of Things Using Wireless Sensor Networks, Ali Abed, Anas Hussien, Lara Falaha

Engineering and Technology Journal

Wireless Sensor Networks (WSNs) have become essential in the monitoring and managing environmental disasters, providing real-time data collection and transmission functionalities. Their application is especially crucial in flood-prone areas, where prompt detection and action can reduce substantial human, economic, and infrastructural losses. Wireless Sensor Networks (WSNs) comprise spatially distributed sensors that monitor environmental parameters, including water levels, temperature, and humidity, relaying data to a centralized system for analysis and response. This paper proposes a flood monitoring system based on a wireless sensor network, emphasizing installing water-level sensors in dam basements.  The system employs the ZigBee communication protocol to provide low-power, …

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A Review Of Smart Actuation Technologies In Modern Mechatronic Systems, Ivan Gorial Mar 2026

A Review Of Smart Actuation Technologies In Modern Mechatronic Systems, Ivan Gorial

Engineering and Technology Journal

Smart actuation has transformed mechatronics over the past six years by harnessing materials that turn heat, electricity, magnetism, or light into finely tuned motion. Our survey of developments from 2019 to 2025 reveals clear trade-offs: electro-active polymers can stretch beyond 200% but operate at roughly 30% efficiency, whereas piezoelectric devices achieve over 95% efficiency with displacements under 0.1%. Ionic polymer–metal composites and magnetorheological actuators strike the best balance for precision work, delivering about 50% stroke at 60% efficiency. Real-world examples show that packing tiny shape-memory alloy bundles into soft exosuits grants sub-millimeter accuracy without sacrificing comfort, and that materials capable …

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Experimental Investigation Of Applying Multi-Stage (Pid-Mrac) Controller For Trajectory Tracking Of Four Mecanum Wheeled Mobile Robot, Asaad Abdullsahib, Hassan Alwan Mar 2026

Experimental Investigation Of Applying Multi-Stage (Pid-Mrac) Controller For Trajectory Tracking Of Four Mecanum Wheeled Mobile Robot, Asaad Abdullsahib, Hassan Alwan

Engineering and Technology Journal

This paper presents a practical investigation into the design and implementation of a multi-stage controller, which integrates a Model Reference Adaptive Controller (MRAC) with a Proportional-Integral-Derivative (PID) controller for trajectory tracking control in a Four Mecanum Wheels Mobile Robot (FMWMR). The MRAC adaptively updates the control parameters based on the difference between the actual and desired behaviors of the mobile robot. In contrast, the PID controller manages the angular velocities of the wheels. The mobile robot has been designed and constructed with two holders to facilitate the transportation of logistical items and constrain the weight to the center of the …

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An Optimal Area Power System-Based Automatic Load Frequency Control Using A 1-D Lookup Table Method, Ekhlas Thajeel Mar 2026

An Optimal Area Power System-Based Automatic Load Frequency Control Using A 1-D Lookup Table Method, Ekhlas Thajeel

Engineering and Technology Journal

Automatic load frequency control (ALFC) is an important part of auxiliary services in power systems. To sustain system accuracy and ensure the safety of power systems, ALFC system design is a vital issue. Power system networks must quickly address the imbalance between generation and demand, or else the power line frequency will depart from its nominal value. However, performance might be disappointing, and frequency deviation can occur when a substantial disturbance occurs, such as when a rapid, significant load change happens. In particular, an enormous number one- and two-dimensional lookup table is used; in this study, the 1-D Lookup Table …

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Design And Control Of Wireless Charging System For Electric Vehicle, Basma Abbas, Hosham Anead, Khalid Sultan Mar 2026

Design And Control Of Wireless Charging System For Electric Vehicle, Basma Abbas, Hosham Anead, Khalid Sultan

Engineering and Technology Journal

This study concentrated on utilizing a neural network controller and inductive power transfer to enhance the electric vehicle charging. Electric vehicles are a key transportation system component since they lower fuel costs, noise levels, and carbon emissions. The charging duration and operational battery efficiency are the primary obstacles to wireless charging in electric vehicles. In the beginning, the system was designed. It included the primary side (grid, rectifier, DC-DC boost converter, and DC-AC high-frequency inverter), mutual inductance (one coil transmitter and six coils receiver), and secondary side (single-phase rectifier and battery pack). A neural network controller has been employed to …

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Comparative Study On Finite Time Tracking Design Based On Pid For 1-Degree Of Freedom Manipulator, Samara Al-Dahlaky, Safanah Raafat Mar 2026

Comparative Study On Finite Time Tracking Design Based On Pid For 1-Degree Of Freedom Manipulator, Samara Al-Dahlaky, Safanah Raafat

Engineering and Technology Journal

In this paper, the application of Sliding Mode Control (SMC) and its integration with Finite-Time Stability (FTS) for controlling 1-degree of-freedom (DOF) system has been explored. By combining FTS with SMC, the convergence speed is significantly improved, enhancing the system's resistance to external disturbances. This paper demonstrates a detailed comparative study on the application of SMC based on FTS with a SMC, and with conventional-PID (C-PID). The SMC developed in this paper is based on a PID controller to ensure that the system's trajectory converges exponentially to zero. The results show that using SMC with FTS provides faster and more …

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Investigating The Effect Of Cooling Systems On The Efficiency Of Photovoltaic Solar Panels, Bilal Al-Asbea Mar 2026

Investigating The Effect Of Cooling Systems On The Efficiency Of Photovoltaic Solar Panels, Bilal Al-Asbea

Engineering and Technology Journal

This research investigates the influence of cooling systems on the performance of photovoltaic (PV) solar panels, specifically using pulsing tubes filled with alumina and titanium dioxide nanofluids under conditions characteristic of solar power plants. Cooling photovoltaic (PV) solar panels is essential for improving their efficiency in solar generating facilities. This work examines the use of pulsing tubes containing Al₂O₃ and TiO₂ nanofluids, together with flow-guiding barriers, to enhance cooling efficiency. Through ANSYS Fluent simulations, we determined that two barriers decrease panel temperature by around 20% (from 60 °C to 48 °C), enhance heat transmission by around 30%, and augment efficiency …

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Performance And Exergoeconomic Assessment Of Of Integrated Organic Rankine Cycle With Solar Combined Cycle System On Sustainable Power Generation In Iraq, Abdulrazzak Akroot, Ayaa Faraj Mar 2026

Performance And Exergoeconomic Assessment Of Of Integrated Organic Rankine Cycle With Solar Combined Cycle System On Sustainable Power Generation In Iraq, Abdulrazzak Akroot, Ayaa Faraj

Engineering and Technology Journal

This study presents a comprehensive performance and exergoeconomic assessment of a solar-driven triple combined cycle (TCC) power system integrated with a rock bed thermal storage unit and an Organic Rankine Cycle (ORC) for enhanced sustainable power generation in Iraq. The proposed system combines Brayton, Rankine, and Organic Rankine Cycle (ORC) cycles to maximize energy recovery from both high- and low-grade heat sources. The integration of the ORC unit significantly improves system efficiency by utilizing residual thermal energy that would otherwise be wasted. The analysis used Engineering Equation Solver (EES) software, incorporating monthly climatic data from Salahaddin, Iraq. Thermodynamic and exergoeconomic …

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A Review Study On Ai-Driven Robotics And Automation In Smart Manufacturing: Applications, Challenges, And Economic Impacts, Timothy Adeyi, Jacob Adebayo, Olakunle Oresegun, Shade Ademokoya, Sunday Jegede, Adrian Cheok Mar 2026

A Review Study On Ai-Driven Robotics And Automation In Smart Manufacturing: Applications, Challenges, And Economic Impacts, Timothy Adeyi, Jacob Adebayo, Olakunle Oresegun, Shade Ademokoya, Sunday Jegede, Adrian Cheok

Engineering and Technology Journal

Integrating AI-driven robotics and automation revolutionizes smart manufacturing by enhancing operational efficiency, productivity, and system flexibility across automotive, aerospace, and general equipment manufacturing industries. This review synthesizes findings from 84 peer-reviewed publications to evaluate the transformative potential of key AI technologies—including machine learning, digital twins, edge AI, and human-machine collaboration—in optimizing production lines and enabling predictive maintenance, real-time monitoring, and adaptive decision-making. While these innovations offer significant benefits in quality control, cost reduction, and sustainability, challenges remain in integrating AI with legacy systems, addressing workforce skill gaps, and ensuring cybersecurity and ethical compliance. Emerging trends such as 5G-enabled edge computing …

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The Effective Of The Passive And Active Techniques On The Vibration Control System, Firas Jasim, Mohammed Mohammed, Hatam Kadhom Mar 2026

The Effective Of The Passive And Active Techniques On The Vibration Control System, Firas Jasim, Mohammed Mohammed, Hatam Kadhom

Engineering and Technology Journal

The interaction between structures and fluid flow in a direction perpendicular to the body can induce vibrations in the structure, a phenomenon known as vortex-induced vibration (VIV). This phenomenon may lead to structural failure due to resonance, which occurs when the natural frequency of the structure matches the vortex shedding frequency. Therefore, it is essential to employ vibration control devices to address the resulting high-amplitude instabilities. In this study, a subsonic wind tunnel with open-circuit specifications was constructed. This open-type wind tunnel generates airflow at varying velocities through the test section. To control vibrations around the cylindrical pipe, an Open-Loop …

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The Impact Of Using Artificial Intelligence Techniques On The Performance Of Turbine Stations: A Mini Review, Ali Fadiel, Moktar Mohamad, Hafiez Khalid, Younis Esham Mar 2026

The Impact Of Using Artificial Intelligence Techniques On The Performance Of Turbine Stations: A Mini Review, Ali Fadiel, Moktar Mohamad, Hafiez Khalid, Younis Esham

Engineering and Technology Journal

This study aims to review the use of artificial intelligence applications in the management of gas turbine stations and their impact on enhancing and raising the efficiency of these stations, including managing the stations themselves, then improving operational efficiency, predicting faults, and developing strategies for road maintenance and precautionary maintenance while reducing the cost through a methodology that is a combination. One of several methodologies describes the factors that influence the enhancement of operational efficiency and management of turbine plants using artificial intelligence applications. The quantitative methodology in collecting data and studies that included the subject and the analytical and …

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Examining The Flexural Behavior Of Honeycomb Sandwich Composites: A Numerical And Experimental Study, Salwan Alhumairee, Ibtihal Mahmood, Mustafa Hunain, Hassan Raheem Mar 2026

Examining The Flexural Behavior Of Honeycomb Sandwich Composites: A Numerical And Experimental Study, Salwan Alhumairee, Ibtihal Mahmood, Mustafa Hunain, Hassan Raheem

Engineering and Technology Journal

Composite sandwich panel structures have been widely used in engineering and aerospace applications. Predicting the flexural properties of theoretical composite constructions is crucial for efficiently designing sandwich composite panel products. This research investigates four different cell core forms—circular, hexagonal, rectangular, and triangular—utilized in the manufacture of sandwich composite structures using a numerical program. For each case, the sandwich composite panel structure maintained constant weight and constant thickness for all models. The skin was fabricated from one layer of carbon fiber and two layers of glass fiber, combined with 3% carbide silicon and 6% polysulfide rubber in an epoxy matrix. The …

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Performance Enhancement Of Evacuated Tube Solar Collectors: A Review, Shrooq Ali, Jalal Jalil, Ahlam Shuraiji Mar 2026

Performance Enhancement Of Evacuated Tube Solar Collectors: A Review, Shrooq Ali, Jalal Jalil, Ahlam Shuraiji

Engineering and Technology Journal

Solar thermal energy is essential for industrial and home applications, such as solar drying, space heating, water heating, and water desalination. Solar collectors are essential elements in these systems, as they transform solar irradiance into thermal energy. Evacuated heat pipes (EHPs) have emerged as efficient thermal transfer devices among sophisticated solar thermal technologies, capable of handling heat with low losses. These pipes function by employing a vacuum-sealed environment that markedly diminishes thermal resistance and convective heat loss. The heat transfer process is facilitated by the phase change of a working fluid, which evaporates at the heat source and condenses at …

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Effect Of Pistacia Khinjuk Shell And Rapeseed Straw Particles On Mechanical Properties And Thermal Properties Of Polyester-Based Composites, Sana Muhamadali, Rzgar Abdalrahman Mar 2026

Effect Of Pistacia Khinjuk Shell And Rapeseed Straw Particles On Mechanical Properties And Thermal Properties Of Polyester-Based Composites, Sana Muhamadali, Rzgar Abdalrahman

Engineering and Technology Journal

Composite materials are widely employed across various industries due to their superior mechanical and thermal properties compared to metals, offering improved performance with reduced weight. Polyester-based composites, in particular, have gained attention for their versatility and ease of processing, and their properties can be further enhanced by incorporating suitable fillers. In response to increasing environmental concerns, recent research has focused on natural fillers as sustainable alternatives, owing to their biodegradability, low cost, and minimal ecological impact. Despite growing interest, the combined application of underutilized bio-based materials, specifically Pistacia khinjuk (PK) shell particles and Rapeseed straw (RS) fibers within polyester matrices, …

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The Influence Of Electrochemical Machining Parameters On Power Consumption And Mrr, Lara Salman, Abbas Ibrahim, Baraa Albaghdadi Mar 2026

The Influence Of Electrochemical Machining Parameters On Power Consumption And Mrr, Lara Salman, Abbas Ibrahim, Baraa Albaghdadi

Engineering and Technology Journal

The electrochemical machining (ECM) process is a highly developed method of working with metal. This process can be used to machine objects that are difficult or impossible to create using conventional machining processes. In this context, monitoring power consumption in industrial companies makes the process more energy-efficient, cost-effective, and sustainable, lowers energy waste from machine tools, and, thus, reduces costs. Therefore, the primary objective of this research is to determine how the ECM impacts power consumption and the material removal rate (MRR). Specifically, the workpiece was made of aluminum 6061 alloys, Al-Sic, and Al-B4C, using a stir casting process, while …

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Effects Of Aging, Temperature, And Time On The Ultimate Tensile Strength Of Al 2024, Benedict Iyida, Azubuike Nwankwo, Thomas Onah Mar 2026

Effects Of Aging, Temperature, And Time On The Ultimate Tensile Strength Of Al 2024, Benedict Iyida, Azubuike Nwankwo, Thomas Onah

Engineering and Technology Journal

This study focuses on the ultimate tensile strength of Al 2024 in that since the past decade, Al 2024 alloy (Al-4.5% Cu-1.5% Mg-0.6% Mn) has been one of the most widely used Al-Cu-Mg-Mn alloys. Therefore, it was subjected to heat treatment, quenching, and artificial aging. The artificial aging temperatures were 1400 °C, 1600 °C, 1800 °C, and 1900 °C, each for the range from 0.5 hr to 9 hr. The ultimate tensile strength of the as-cast after solutionizing and quenching increased from 185 MPa to 199 MPa, representing a 7.6% increase. At 1900 °C aging temperature, the peak value of …

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Investigation Of Machining Performance In Ecdm Of Al6061-Sic-B4c Hybrid Composites, Safa Lafta, Abbas Ibrahim Mar 2026

Investigation Of Machining Performance In Ecdm Of Al6061-Sic-B4c Hybrid Composites, Safa Lafta, Abbas Ibrahim

Engineering and Technology Journal

This study investigates the machining performance of the Electrochemical Discharge Machining (ECDM) process on a hybrid composite material comprising Aluminum 6061 reinforced with 6% silicon carbide (SiC) and 6% boron carbide (B4C). Experiments evaluated the effects of electrolyte concentration, voltage, pulse-on time, and pulse-off time on Material Removal Rate (MRR), Tool Wear Rate (TWR), and Surface Roughness (SR). Taguchi analysis and ANOVA highlighted the significant influence of these parameters on machining outcomes. The optimal MRR (0.113 g/min) was achieved at 20% electrolyte concentration, 40V, 150 µs pulse-on time, and 25 µs pulse-off time. The best TWR (0.007 g/min) occurred at …

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Developing A Novel Heuristic Method To Solve The Unbalanced Allocation Problem, Faten Al-Obaidi, Alla Eldin Kassam, Sawsan Al-Zubaidi Mar 2026

Developing A Novel Heuristic Method To Solve The Unbalanced Allocation Problem, Faten Al-Obaidi, Alla Eldin Kassam, Sawsan Al-Zubaidi

Engineering and Technology Journal

Globalization and technological advancements have emphasized the importance of efficient resource allocation for production, efficiency, cost reduction, and optimal use. The assignment problem, a long-term issue, has gained researchers' attention due to its significant impact on institutional success. It prioritizes resource allocation to minimize time and cost while ensuring the feasible execution of activities. The assignment issue can be balanced (the number of activities matches the number of resources) or unbalanced (the number of activities does not match the number of resources). This can lead to resources being left without assignments or activities without implementation when resources exceed activities. A …

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Experimental Adsorption Of Drug Loading For Nano-Carriers, Hind Abbood, Alaa Abdul-Hamead, Farhad Othman Mar 2026

Experimental Adsorption Of Drug Loading For Nano-Carriers, Hind Abbood, Alaa Abdul-Hamead, Farhad Othman

Engineering and Technology Journal

This study focuses on preparing and characterizing mesoporous silica nanoparticles (MSNs) with two distinct pore sizes: small and large. The MSNs were employed to encapsulate paclitaxel (PTX), achieving enhanced drug-loading capacity and improved cytotoxicity. The MSNs synthesis by modified sol-gel method and the pore size can be modified by adding the mesitylene to MSNs for 1, 3, and 5hr. The drug loading was carried out by dissolving the PTX drug with different solvents, water, ethanol, DMSO, and dichloromethane by the Adsorption method and measuring the drug loading capacity and drug loading efficiency for both types of mesoporous silica nanoparticles. All …

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Non-Linear Finite Element Analysis For The Verification And Parametric Study Of Reinforced Concrete Beams Strengthened In Compression Zone To Improve Ductility By Using Abaqus, Dunyazad Assi Mar 2026

Non-Linear Finite Element Analysis For The Verification And Parametric Study Of Reinforced Concrete Beams Strengthened In Compression Zone To Improve Ductility By Using Abaqus, Dunyazad Assi

Engineering and Technology Journal

Ductility is an important mechanical property of concrete structures, in tensile members, as it is the property that allows the structural member to deform plastically long before the failure point. To increase the deformation period of the beams, i.e., the ductility of failure. In the current paper, four reinforced concrete beams were modeled and compared using nonlinear finite element analysis. Reinforced concrete beams are developed and analyzed by using ABAQUS commercial software. Nonlinear material behavior, as it relates to steel reinforcing bars and plain concrete, is simulated. The effect of the change of the concrete compressive strength in the upper …

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Treatment For Dairy Waste Water Using A Photoreactor (Uv And Hydrogen Peroxide) As An Alternative Treatment Technique, Anwar Hashim, Hala Abdulkareem, Mohammed Salman Mar 2026

Treatment For Dairy Waste Water Using A Photoreactor (Uv And Hydrogen Peroxide) As An Alternative Treatment Technique, Anwar Hashim, Hala Abdulkareem, Mohammed Salman

Engineering and Technology Journal

The contamination of vital life supplies by industrial waste, especially dairy effluent, is a growing global concern. This study investigates the impact of advanced oxidation processes (AOP) on treating dairy wastewater utilizing UV/H2O2 AOP. Utilized ultraviolet lamps in conjunction with hydrogen peroxide oxidant reagent (0.6, 1.2, 1.8, and 2.4 ml/L) in batch experiments under varying parameters to optimize the treatment of dairy wastewater before and following its introduction to the advanced oxidation process (AOP) system, by measuring Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD). The impacts of varying circulation durations in a photocatalytic system (60-360 minutes), flow rates …

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Mapping Agricultural Lands At Risk Of Meteorological Drought In Iraq Using Geostatistics, Mohammed Azeez, Hisham Al Sharaa, Abdul Razzak Ziboon Mar 2026

Mapping Agricultural Lands At Risk Of Meteorological Drought In Iraq Using Geostatistics, Mohammed Azeez, Hisham Al Sharaa, Abdul Razzak Ziboon

Engineering and Technology Journal

Identifying vulnerable agricultural lands at risk of meteorological drought is challenging for researchers. Its complexity lies in the fact that agricultural lands are irrigated by two sources: rain and rivers. In this research, we have developed a geostatistical model to separate river-dependent lands unaffected by meteorological drought waves and land vulnerable to the risk of meteorological drought. The inputs of this geostatistical model are the vegetation index and the humidity index extracted from Landsat 8, the rainfall from CHIRPS, and the LULC from ESA. The correlation between the Normalized Difference Vegetation Index (NDVI), the Normalized Difference Moisture Index (NDMI), and …

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Preliminary Trial On The Potential Of Fiber-Reinforced Rubberized Foamed Concrete As Sustainable Roof Tiles, Oday Abd, Ameer Hilal, Tareq Khaleel Mar 2026

Preliminary Trial On The Potential Of Fiber-Reinforced Rubberized Foamed Concrete As Sustainable Roof Tiles, Oday Abd, Ameer Hilal, Tareq Khaleel

Engineering and Technology Journal

The growing negative effects of nonbiodegradable trash, including waste tires, underscore the necessity for sustainable alternatives in construction materials. This study examines the feasibility of manufacturing foamed concrete tiles reinforced with fibers, utilizing a superplasticizer (SP) with suitable quantities of waste tire rubber (WTR) from nonbiodegradable tires to reduce environmental pollution. Initially, standard concrete tiles with a density of 2400 kg/m³ and dimensions of 500 × 500 × 50 mm3 (Class A, IQS 1107) were manufactured for comparison. Subsequently, four types of foamed concrete tiles with a density of 1100 kg/m³ were produced: conventional foamed concrete tiles, foamed concrete tiles …

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Identifying The Most Suitable Sites For Solar Energy Projects Using Gis In Owerri, Imo State, Nigeria, Onyedikachi Ukachukwu, Benedicta Dike, Martin Okeke Mar 2026

Identifying The Most Suitable Sites For Solar Energy Projects Using Gis In Owerri, Imo State, Nigeria, Onyedikachi Ukachukwu, Benedicta Dike, Martin Okeke

Engineering and Technology Journal

This study explores the potential of renewable energy in Owerri Municipal, Nigeria, using Geographic Information Systems (GIS) to identify optimal locations for renewable energy projects. The objective is to contribute to sustainable energy development by assessing the spatial distribution of renewable energy resources, evaluating environmental and socio-economic factors, and generating suitability maps for various renewable energy technologies. This was achieved by integrating GIS-based analysis with comprehensive data on solar radiation and Land Use Land Cover (LULC) types. Classifying LULC was a critical step in remote sensing, offering insights into various land cover classes' spatial distribution and dynamics. An aspect model …

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Impact Of Recycled Aggregate On Bond Behavior Between Concrete And Steel Bars: A Systematic Review, Nada Sahmi, Eyad Sayhood, Nisreen Mohammed Mar 2026

Impact Of Recycled Aggregate On Bond Behavior Between Concrete And Steel Bars: A Systematic Review, Nada Sahmi, Eyad Sayhood, Nisreen Mohammed

Engineering and Technology Journal

The use of recycled concrete aggregate (RCA) in structural applications has considerably increased in order to minimize the environmental effects of concrete buildings. Bond is a crucial characteristic of reinforced concrete that relates to the adhesion between the reinforcing steel and the surrounding concrete. This systematic review presents a comprehensive examination of the bond characteristics of steel bars and recycled coarse aggregate concrete RAC In addition, several components influencing both the load-slip curve and the failure mechanisms of RAC specimens were presented and discussed. Furthermore, prediction equations for bond strength and models of the bond-slip relationship between RAC and steel …

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The Behavior Of Secant Pile Wall Embedded Within Soil By Numerical Analysis, Ayad Hussein, Mahmood Mahmood, Mohammed Aswad Mar 2026

The Behavior Of Secant Pile Wall Embedded Within Soil By Numerical Analysis, Ayad Hussein, Mahmood Mahmood, Mohammed Aswad

Engineering and Technology Journal

Deep excavation projects in areas with high groundwater levels, such as industrial zones with large, heavy structures, present significant challenges. Secant piling techniques offer an effective solution for these conditions. These retaining walls are constructed by overlapping reinforced concrete and plain concrete piles to form a continuous barrier against soil and water ingress. This research investigates the effectiveness of secant pile walls as a deep excavation support system, focusing on the impact of various parameters on ground movement, analyzed using the DeepEX program. The case study centers on the Al Dawoodi/Al Mansur District in Baghdad, Iraq. Key factors examined include …

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Flexural Behavior Of Reinforced Recycled Concrete Coarse Aggregates Rectangular Beams With And Without Splice Bars, Muslim Attab, Sarmad Abdulqader, Makki Mohsen Mar 2026

Flexural Behavior Of Reinforced Recycled Concrete Coarse Aggregates Rectangular Beams With And Without Splice Bars, Muslim Attab, Sarmad Abdulqader, Makki Mohsen

Engineering and Technology Journal

Interest in using recycled concrete aggregate (RCA) as a partial or full replacement for natural coarse aggregate (NCA) in concrete production has increased significantly in recent years. This shift contributes to reducing landfill usage and conserving natural resources. This study presents an experimental investigation into the behavior of sixteen rectangular beams cast with varying RCA ratios to examine the effects on ultimate load capacity and concrete strain. The beams, each measuring 1600 mm in length, 170 mm in width, and 260 mm in height, were reinforced with two longitudinal 12 mm steel bars, and 8 mm stirrups spaced at 75 …

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Mechanical And Fracture Performance Of Fresh Rubberized Self-Compacting Concrete: A Mini Review, Muntadher Taher, Tareq Al-Attar, Aqeel Al-Adili Mar 2026

Mechanical And Fracture Performance Of Fresh Rubberized Self-Compacting Concrete: A Mini Review, Muntadher Taher, Tareq Al-Attar, Aqeel Al-Adili

Engineering and Technology Journal

Sustainable construction procedures use recyclable material; thus, the construction process and design choices are focused on planet health. SCC is a new generation of concrete that offers the achievement of high durability and flexibility in Rubberized Self-Compacting Concrete (RSCC) by employing recycled tire rubber and Self-Compacting Concrete (SCC). This review investigates the mechanical and cracking characteristics of rubberized self-compacting concrete and rubber content effects. Formwork requirement is brought down by the concrete’s ability to compact itself, thereby increasing user satisfaction. Energy is effectively absorbed, the flexibility of concrete is increased, and tire disposal is made simpler with rubber granules. Rubber …

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Impact Of Laser Energy On The Synthesis And Antibacterial Performance Of Cdo Nanomaterials, Ali Yousif, Thikra Mejbel, Kadhim Aadim, Wasan Kadhem Mar 2026

Impact Of Laser Energy On The Synthesis And Antibacterial Performance Of Cdo Nanomaterials, Ali Yousif, Thikra Mejbel, Kadhim Aadim, Wasan Kadhem

Engineering and Technology Journal

The objective of the current work is to evaluate the antibacterial efficiency of cadmium oxide nanomaterials (CdO NPs) produced through pulsed laser ablation in liquid (PLAL) with laser energy ranging from 400 to 600 mJ. Several characterization techniques, including X-ray diffraction (XRD), UV-Vis spectroscopy, and atomic force microscopy (AFM), were harnessed to analyze synthesized CdO NPs. The nanoparticles had a spherical shape and a size distribution that reduced with higher laser energy. The XRD study confirmed a polycrystalline cubic structure, while AFM measurements disclosed a drop from 133 to 84 nm in the particle size as laser intensity rose. UV-Vis …

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Investigation Of Fe3o4 Nanoparticles Synthesized Via Co-Precipitation Coated With Chitosan, Peg, And Folate For Targeted Paclitaxel Delivery In Fibrosarcoma Treatment, Adawiya Haider, Sharafaldin Al-Musawi, Rusul Al-Obaidy, Azhar Haleemd, Mohammed Al-Hindawi, Bakr Taha Mar 2026

Investigation Of Fe3o4 Nanoparticles Synthesized Via Co-Precipitation Coated With Chitosan, Peg, And Folate For Targeted Paclitaxel Delivery In Fibrosarcoma Treatment, Adawiya Haider, Sharafaldin Al-Musawi, Rusul Al-Obaidy, Azhar Haleemd, Mohammed Al-Hindawi, Bakr Taha

Engineering and Technology Journal

Magnetite (Fe3O4) nanoparticles (NPs) were synthesized using a straightforward co-precipitation method from Fe2+/Fe3+ salt solutions as starting materials. This method was optimized to control particle size and morphology, resulting in highly magnetic NPs with crystallite sizes ranging from 20 to 70 nm. The synthesis process involved magnetic stirring at 700 rpm at room temperature, yielding approximately 5 mg of Fe3O4 powder. Structural characterization via X-ray diffraction (XRD) confirmed the stoichiometric composition and particle dimensions. To enhance functionality, the Fe3O4 NPs were coated with chitosan (Cs), polyethylene glycol (PEG), and folic acid (FA), and loaded with the anticancer drug paclitaxel (PTX), …

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