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298 articles for “rat model”
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Transient Response of Power Networks to Pulse Inputs of Non-Standard Wave forms: Analysis and Case Studies
Abstract: This study reveals and discusses intriguing situations that can cause electromagnetic transient stressors with unexpected magnitudes and time wave patterns in power networks. They may be caused, for instance, by atmospheric discharges that affect overhead power lines and/or underground cables, provided that the stimulating surges also feature a number of rather evenly spaced pulses of a repetitive nature. An s-domain mathematical model based on the distributed parameter analysis is presented. …
Published in International Journal of Analog Integrated Circuits · Vol. 8, Issue 1, 2022 · pp. 25–32 Read article
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STUDY OF NANOFLUIDS AND THEIR APPLICATION IN HEAT TRANSFER
Abstract: Heat transfer enhancement has always been the area of improvement. A large amount of research is going by changing the design, shape and size of the devices which requires high quality materials. Nano-fluids can serve this purpose very correctly, because of their high heat transfer capability. Nano-fluids have higher thermal conductivity and higher surface area to volume ratio which helps in increasing the heat transfer. Nano-fluid thermal conductivity models are …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 3, Issue 1, 2017 · pp. 22–27 Read article
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CFD Analysis of Earth Heat Exchanger with Air as a Cooling Medium
Abstract: An earth air tube heat exchanger (EATHE) uses the thermal energy of the ground for the air cooling in summer and air heating in winter due to the temperature difference between the air and underground surface. With the help of EATHE we can reduce the energy consumption required for space heating or cooling. However, for determining the surface heat convection, due to lack of available methods it is difficult to …
Published in International Journal of Computer Aided Manufacturing · Vol. 3, Issue 2, 2017 · pp. 21–30 Read article
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Modeling the Diffusion Characteristics of Sawdust in Crude Oil Medium
Abstract: Over the years, oil spill pollution has become an important issue of concern due to its serious environmental impact; Therefore natural organic sorbent such as Abura sawdust was used for oil spill cleanup due to its availability, eco-friendliness and low cost, and was selected as the preferred sorbent and the effects of sorbent contact time and its particle size on oil adsorption capacity were evaluated for the systems of dry …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 1, 2018 · pp. 44–57 Read article
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Design of a Plug Flow Reactor for Production of Refrigerants from Natural Gas Chlorination
Abstract: The design of a plug flow reactor and distillation column for the production of refrigerants from natural gas chlorination, was aimed at achieving high purity volume percent of Methyl Chloride (CH3Cl) and Methylene Chloride as desired products. Aspen HYSYS software was used to simulate the reactor. The reaction was carried out at a temperature of 3000C and 1atm Pressure, Methane to Chlorine ratio was set at 1.5:1 to favour the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 2, 2021 · pp. 10–22 Read article
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Investigation on the Viability and Performance of Justicia Carnea Plant Extracts Treated on Crude Oil Remediation in Loamy Soil
Abstract: This study was carried out to investigate the viability and the performance of Justicia carnea plant extracts treated with direct sunlight and the absence of sunlight on the bioremediation process of crude oil contaminated loamy soils sample obtained from the Otari community in Abua Local Government Area of Rivers State of Nigeria. Total petroleum hydrocarbon degraded, total microbial count, pH, amount of nitrogen, phosphate, and potassium, soil total organic carbon, …
Published in International Journal of Agrochemistry · Vol. 7, Issue 2, 2021 · pp. 1–21 Read article
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Optimization of Machining Parameters for Nylon 6 Composite in CNC Lathe Using PCA-Based TOPSIS
Abstract: This work investigates the parametric optimization of CNC turning operation for Nylon 6 with principal component analysis (PCA) and technique for order preference by similarity to ideal solution (TOPSIS) based on Taguchi approach. Taguchi’s L16 orthogonal array takes 16 experimental runs to execute the design matrix of turning parameters through PCA coupled with TOPSIS, utilizing relevant experimental data as obtained through experimentation. Turning speed (TS), feed rate (FD) and depth …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 1, 2018 · pp. 36–47 Read article
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Intelligent Trajectories: Harnessing Artificial Intelligence for Next Generation Missile and Propellant Design
Abstract: The rapid evolution of artificial intelligence (AI) has unlocked transformative pathways for high-performance aerospace engineering, yet its integration into missile and propellant design remains nascent. This study investigates a hybrid AI-driven framework that unites physics-based modeling, data-centric learning, and multi-objective optimization to accelerate the conception, validation, and refinement of missile airframes and solid-propellant formulations. First, a physics-informed neural network (PINN) is trained on a curated database of historic missile geometries, …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 20–26 Read article
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SMART SURVEILLANCE: AI-DRIVEN DRIVER DROWSINESS DETECTION SYSTEM
Abstract: In this study, a real-time application for driver drowsiness detection based on machine learning and deep learning is developed. Accidents, including traffic accidents, are now a frequent cause of fatalities and injuries among people. One of the major contributing factors to traffic accidents and a significant threat to road safety is drowsy driving. As a result, there are more people dying and getting hurt every year. Serious traffic accidents have …
Published in International Journal of Computer Aided Manufacturing · Vol. 9, Issue 1, 2023 · pp. 29–35 Read article
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A Review on Software Simulation of Canola Fuel and Its Blending
Abstract: Incessant consumption of petroleum fills and their requests lead man to look for elective energizes. As of now, the world is profoundly reliant upon oil fills and this outcome in a significant channel of our unfamiliar trade recourses. Diesel motors are the most productive wellspring of force accessible today. Thus, they are utilized for business transportation, farming and modern force plants. The utilization of diesel is a few times higher …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 1, 2021 · pp. 8–16 Read article
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Optimization of Compressive Strength of Segmental Interlocking Stones
Abstract: The failure of most segmental interlocking stones used as pavement materials is traceable to lack of knowledge of the mix ratios that would optimize the compressive strength of the end products. In this study, the compressive strength was optimized based on Scheffe’s simplex lattice approach. The reliability of model developed was investigated using F-statistic and was found to be adequate. A computer program written in basic language was used to …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 4, Issue 2, 2018 · pp. 1–7 Read article
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Cognitive Metallurgy: A Study on Microstructure and Energy Efficiency in High-Temperature Alloying via Sensor Fusion and Deep Reinforcement Learning
Abstract: Background Traditional high-temperature metallurgical processes, such as continuous casting and specialty alloy synthesis, are characterized by high energy consumption, stochastic variability, and reliance on post-process defect inspection. The inability to precisely monitor, model, and predict the real-time thermal, chemical, and mechanical state of molten metal and cooling substrates results in significant material waste and inconsistent microstructural integrity. Methodology This study introduces a novel framework for Cognitive Metallurgy utilizing an integrated …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 2, 2025 · pp. 27–36 Read article
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Kinetics of Nucleation and Growth of Metal Nanoparticles – A Mini Review
Abstract: The prediction of nucleation and growth model for metal nanoparticles is very much important in the field of catalysis and fuel cell technology. In this mini review, discuss the initial stages of nucleation and growth model for 2D and 3D instantaneous and progressive nucleation kinetics explained. Keywords: instantaneous, nucleation, nucleation rate, progressive
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 3, Issue 1, 2017 · pp. 15–18 Read article
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Retrofitting of Existing Building by Concrete Jacketing
Abstract: Seismic Retrofitting is engineered mitigation techniques for structural engineers. It is defined as the modification of existing structures to make them more resistant to seismic activity, ground motion or soil failures due to earthquakes. It is generally required for earthquake damaged and vulnerable buildings with no exposure to severe earthquakes. Retrofit enhances the structural capabilities of the building. In present time, there are many local and global retrofit techniques in …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 49–84 Read article
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Observations On Performance And Challenges Of Implantable Antennas In Biotelemetry Application
Abstract: People are moving in a very fast developing environment to achieve new technology for medical purpose. Latest development in the field of implantable medical device gives hope in the field of biotelemetry hence Implantable antennas are in great demand. In this paper, the main focus is on the performance of Implantable antenna and the challenges as miniaturization, patient safety, compatibility and many more. The return loss and the radiation pattern …
Published in International Journal of Microwave Engineering and Technology · Vol. 2, Issue 1, 2016 · pp. 26–30 Read article
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Improved Programming Model Using AI: Shifting from Imperative Coding to Declarative Intent
Abstract: The contemporary software development lifecycle is burdened by significant cognitive friction, characterized by high demands for syntax recall, boilerplate management, and painstaking manual debugging. This paper proposes and examines a novel programming model built upon deeply embedded artificial intelligence, moving beyond simple code completion tools to establish a truly intent-based, declarative development environment. The proposed model leverages specialized large language models and domain-specific generative agents (Cognitive Programming Assistants, or CPAs) …
Published in International Journal of Software Computing and Testing · Vol. 11, Issue 2, 2025 · pp. 1–9 Read article
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Application of Suitable Admixtures (Lime and RHA) for Improvement of Pavement Subgrade
Abstract: Abstract The quality of a pavement depends on the strength of its sub-grade. The present investigation has been carried out with easily available materials like lime and rice husk ash mixed individually and in combinations with different proportions. The different percentages of lime with respect to weight of dry soil were 2%, 4%, 6%, 8% 10% and for rice husk ash (RHA) were 3%, 6%, 9% and 12%. In each …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 2, 2015 · pp. 14–31 Read article
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Magnitude of unwanted pregnancy and associated factors among young female students of Mettu University
Abstract: Introduction: Unwanted pregnancy poses a major and continuing social and health challenge in Africa, accounting for more than a quarter of the 40 million pregnancies that occur annually in the region. Objective: The main aim of this study was to assess the prevalence of unwanted pregnancy and its associated factors among young female students of Mettu University, 2017. Methods: An institution based cross sectional descriptive study design was used. A …
Published in International Journal of Obstetrics, Perinatal and Neonatal Nursing · Vol. 4, Issue 1, 2018 · pp. 7–12 Read article
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Study on the Root Cause of Fuel Tanker Truck Accidents in Nigeria: Reliability of Accidents Caused by Human Factors (HF)
Abstract: Accidents involving transportation of petroleum products by road are of high frequency in Nigeria, mainly because of overdependence on the tanker-truck system due to pipeline vandalism. We analyzed over 92 accidents involving tankers-trucks from 2014 to 2019. In this study, the analysis is done to examine the factors that caused the accident using accident records and petroleum distribution data from the Federal Road Safety Commission (FRSC). Petroleum tanker-truck accident reports …
Published in International Journal of Energetic Materials · Vol. 10, Issue 1, 2024 · pp. 36–49 Read article
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Crude Oil Degradation on the Influence of Palm oil-Fermented Wastewater Used as Biostimulant
Abstract: *Author for CorrespondenceUkpaka Chukwuemeka Peter E-mail: [email protected] The total petroleum hydrocarbon (TPH) degradation was monitored in a batch reactor with the addition of biostimulants like palm oil processed wastewater (POPWW) acting as nutrients, to effectively enhance high efficiency in contaminants remediation in clay soil. The kinetic components were evaluated in terms of specific rates of petroleum hydrocarbon degradation, maximum specific rate of total petroleum hydrocarbon degradation as well as the …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 1, 2026 · pp. 47–60 Read article