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1292 articles for “maxims”
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Comparative Analysis of Perturb & Observe and Incremental & Conductance MPPT Algorithms
Abstract: AbstractMaximum power point tracking (MPPT) technique implemented on a Photo-Voltaic (PV) system is meant for increasing its efficiency. In literature may research work claims MPPT technique as one of the most efficient way in enhancing output power generated. The output electrical parameters (V-I curve) of PV (photovoltaic) system depends on the irradiance, temperature, configuration, environmental conditions and analogy of a PV system. MPPT regulates the system at the reference voltage …
Published in Journal of Electronic Design Technology · Vol. 9, Issue 2, 2018 · pp. 7–13 Read article
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Urban Planning Mitigation Trajectories for Urban Heat Island (UHI) A Case Study of Guntur, Andhra Pradesh, India
Abstract: AbstractGlobal radiation related solair-temperature directly influences Urban Heat Islands (UHI) as the built environments and surrounding atmosphere cause increase in urban solair temperatures, the resulting temperature completely depends on the thermal properties of the exposed materials. Urban heat islands can lead to deterioration of flora and fauna, elevation of ground level ozone, health disorders and increase in building energy consumptions. The study area of Guntur region which is susceptible to …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 2, 2018 · pp. 12–29 Read article
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Modification in Heat Sink Design to Improve its Heat Dissipation Capacity for Current CPU Design
Abstract: AbstractElectronic equipment plays an important role in day-to-day life. Almost every object or equipment or machine uses electronic components to complete its task. For electronic component to work it needs electric current to flow through the circuits. And hence they become main reason of excessive heating. Continued shrinking of electronic systems has resulted in a histrionic increase in the amount of heat generated per unit volume. Air cooling with the …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 3, 2018 · pp. 1–7 Read article
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The Resurging Effect of Climate – Human Interaction on the Soil of Abia State, Nigeria: A Climate Change Perspective.
Abstract: Abstract Studies on the impact of climate change on soil erosion have been widely acknowledged by parts of the eastern states of Nigeria as one of the major land degradation problems besetting the area. This study adopts Geographic Information System (GIS) and Remote Sensing techniques as veritable tool to study the effect of Climate – Human interaction on soil of Abia state. Increase in observed mean rainfall of 5.85, 5.62, …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 10, Issue 2, 2020 · pp. 27–44 Read article
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SEASONAL TEMPERATURE IMPACT ON THE DRIVING RANGE OF ELECTRIC VEHICLE: EFFECTS ON CARBON EMISSION SAVING
Abstract: The main goal of the project is to analyse the impact of the seasonal temperature on the performance of the battery of electric vehicles, thus on the driving range. A simulation study has been developed for a Tesla model 3 Mid Range operating in the area of Lyon (France). The simulation has been run for a year based on monthly average temperatures, developing a process to estimate daily temperature evolution. …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 12, Issue 2, 2022 · pp. 10–34 Read article
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Effect of Different Dosages of Saline Water on the Index and Engineering Properties of Bentonite
Abstract: The paper presents the effect of different dosages of saline water on the index and engineering properties of bentonite. The various tests conducted were consistency limits, free swell index, compaction and unconfined compressive strength. The saline water solution was prepared by varying the salt content from 5 to 40 gms per litre of distilled water. The specimens were prepared at their maximum dry unit weight and optimum moisture content. The …
Published in Journal of Geotechnical Engineering · Vol. 5, Issue 2, 2018 · pp. 1–7 Read article
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Analysis of Anchored Sheet Pile Wall Using Finite Element Method
Abstract: A numerical parametric study using the finite element program of OPTUM G2 was performed on single, double, and triple anchored sheet piles systems retaining sandy soil. The present paper evaluates the variation of maximum shear force distribution, bending moment distribution, and displacement of soil and sheet pile wall concerning different depths of excavation, embedded depth of sheet pile wall, and position of anchor in retention system. Flexible plate elements, Mohr-coulomb …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 2, 2021 · pp. 21–28 Read article
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Evaluate Variations of Deflections of Fixed Headed Pile from Non-Linear Load - Deflection Curve under Lateral Loading
Abstract: Lateral stability is the vital issue when the pile stands in several soft clay either sand layers. In reality, structure and soil both are show non-linear behaviors. Proper evaluation of non-linear behavior has not so essay in theory. However, slight non-linear effects are included in pile deflection from load-deflection curve of pressuremeter test in laboratory. Pressuremeter modulus is influenced deflection of fixed headed piles. Predicting the variations of non-linear load …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 1, 2022 · pp. 45–52 Read article
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Economic Importance of Laterite Deposit in Oke-Oyi Area, Ilorin, Nigeria
Abstract: Two soil samples A and B were taken from Oke-Oyi, Kwara state, North Central, Nigeria. The water content of the samples are 5.8% and 6.5 for sample A and B respectively. This shows the variability in water table in the area. The specific gravities values are 2.7 and 2.78 for samples A and B, this is an indicator of inorganic soil. Grain size analysis show the laterite to be sandy …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 33–37 Read article
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A Simulation Model to Predict the Performance of Ethanol- Gasoline Blend (E15) in a Spark Ignition Engine
Abstract: Usage of biofuels like bio-ethanol as a fuel in IC Engines is becoming prominent day by day due to their positive characteristics like biodegradability, nonpolluting, renewability, homegrown etc. Conducting experiments on real engine to establish the suitability of biofuels to IC Engines is very time consuming and expensive. Computer based simulation helps in addressing these problems. In this work an attempt is made to simulate performance and emission of SI …
Published in Journal of Industrial Safety Engineering · Vol. 7, Issue 3, 2020 · pp. 13–22 Read article
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Evaluation of Critical Crack Position on the Curved Surface under Mechanical Load: FEA Approach
Abstract: Abstract: Influence of initial crack position on the stress distribution around the crack tip is always taken into account for the failure analysis of metallic structures. Evaluation of Stress Intensity Factor for cracks of various orientations was carried out using Finite Element Analysis technique. These Stress Intensity Factors were used to calculate energy release rate for the various orientations. Next, thus obtained energy values have been compared with energy values …
Published in Journal of Instrumentation Technology & Innovations · Vol. 9, Issue 1, 2019 · pp. 1–6 Read article
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Side Lobe Reduction using Bacterial Foraging Optimization
Abstract: AbstractTo meet the need for long-distance communication, the directive characteristics and radiation pattern of the antenna must be improved. By arranging the antenna elements in an electrical or geometric pattern, such that the radiated energy of the radiation elements vector added in the desired direction of propagation and canceled in the unwanted direction, results in a better-designed antenna array. The elements of the antenna array may be uniformly or non-uniformly …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 2, 2020 · pp. 7–15 Read article
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Compact MIMO Antenna Array based on Koch Fractal Metamaterial for 5G Applications
Abstract: In this paper, a design of a printed MIMO antenna array for 5G applications is proposed based on low profile structure. Thus, the antenna element is designed as a printed mender monopole with a partial ground plane. The partial ground plane is proposed to realize bandwidth enhancements through etching rectangular slots in the antenna back panel. It is found that such antenna shows two frequency bands, S11<-10dB, from 3 GHz …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 3, 2022 · pp. 1–7 Read article
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An Austempering Study of Ductile Iron and the Effect of Copper Addition on the Tensile Properties of Austempered Ductile Iron
Abstract: Austempered Ductile Iron (ADI) has proved to be an excellent material as it possesses attractive properties like high strength, ductility and toughness combined with good wear resistance and machinability. These properties can be achieved upon adequate heat treatment which yields optimum microstructure for a given chemical composition. In this work, an investigation has been conducted on ductile iron alloyed with Cu and austempered in a range of time and temperatures. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 2, 2013 · pp. 1–7 Read article
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Aerogel Composite from Scope–A Study
Abstract: This article is a study of nano-metric porous dimension so as to originate open scripture to allocate semi-composite organized after drying. Particulate merged add an addendum anew formation to subdivide inter atoms to bond nano-composite ingredients. Properties of matter have been identified to be lower than 100 nm. Reinforce of aerogel as blanket has been designated to bear as usual insulation upon typifying configurative scope as substrate to cover. Adjoined …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 1, 2021 · pp. 1–12 Read article
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A Comparative Analysis of Various Flipped Voltage Follower Cells
Abstract: Flipped voltage follower (FVF) cell is used for designing low-voltage/low-power analog circuits. It can operate with a single supply voltage, less than the sum of the threshold voltages of a PMOS and NMOS transistor. The three different configurations of the FVF cell namely conventional FVF, FVF using level shifter (FVFLS) and FVF using bulk driven technique (FVFBD) are presented. Various parameters such as input/output swing, gain, bandwidth and power dissipation …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 2, 2017 · pp. 1–8 Read article
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Fuzzy Based Power Flow Control in Grid Connected Hybrid PV-PEMFC Microgrid System
Abstract: This paper evaluates the performance of a fuzzy based power flow control of grid connected hybrid system. The hybrid system composed of a Photovoltaic (PV) array and a Proton exchange membrane fuel cell (PEMFC) is considered. The photovoltaic (PV) array normally uses a maximum power point tracking (MPPT) technique to continuously deliver the highest power to the load when there are variations in irradiation and temperature occur, which make it …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 1, 2016 · pp. 20–29 Read article
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Performance analysis of single axis solar tracking system with IoT Monitoring system
Abstract: The goal of this project is to create a single-axis solar tracking system that will work with an IoT monitoring system to maintain solar panel alignment with the Sun for maximum solar energy gathering. Single-axis solar tracking is a method of optimizing the energy output of a solar panel by adjusting its position along a single axis throughout the day in order to maximize their exposure to sunlight. Since many …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 1, 2023 · pp. 22–28 Read article
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Power Generation using Photovoltaic System with MATLAB Simulink
Abstract: The issues of decreasing natural resources, the ensuing environmental repercussions, and the increasing demand for new energy resources have been actively investigated in recent years [13], partly because energy resources and their use will be a key concern of this century.Over the past ten years, grid-connected photovoltaic (PV) power systems have experienced phenomenal growth. Growing public awareness of climate change, tax advantages and rebates, and the falling cost of solar …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 36–42 Read article
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Effect of concentration of Halloysite nanotubes on the Mechanical, Thermal and electrical properties of NBR/PP Elastomer nanocomposites
Abstract: Preparation of nanocomposites from immiscible polymer blends system has been investigated in this work. Natural clay named halloysite nanotubes are incorporated in the immiscible blend system using melt mixing process to prepare halloysite based nanocomposites comprising of PP/NBR blend system. FTIR studies have been carried out to establish the structure properties relationship. Nanocomposites are characterized by SEM for morphological studies. The thermal stability of nanocomposites has been evaluated by TGA …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 62–67 Read article