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241 articles for “High/ low density”
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Studies on Electrical and Thermal Transport of InN based on Two Layer Model
Abstract: InN, a material of huge potential in device applications, is grown on sapphire substrate. But due to the high lattice mismatch between the sapphire and InN, the large number of dislocations develops near the interface between the two materials. However, the density of threading dislocation falls sharply in the bulk layer. The charge density has also similar variation. Therefore, the bulk InN crystal may be treated to be consisting of …
Published in Research & Reviews : Journal of Physics · Vol. 2, Issue 2, 2013 · pp. 17–21 Read article
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Footstep Power Generation Using Piezoelectric Materials: A Renewable Approach for Smart Infrastructure
Abstract: The rapid depletion of fossil fuels and the increasing global demand for sustainable energy have necessitated the development of decentralized energy harvesting systems. This paper presents a comprehensive study on footstep-based power generation using piezoelectric materials as a viable renewable energy solution for smart infrastructure. The proposed system converts mechanical energy generated from human locomotion into electrical energy using optimized piezoelectric transducer arrays integrated beneath floor tiles. The study covers …
Published in Trends in Electrical Engineering · Vol. 16, Issue 1, 2025 Read article
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Paper Waste for Bricks Production Evaluation of Paper Waste as An Alternative Aggregate in Bricks Production
Abstract: This study focused on the use of paper waste to partially replace ordinary Portland cement for producing a new lightweight concrete, otherwise called papercrete. The objective was to evaluate its effect on some hardened properties of papercrete. A laboratory experiment was conducted where paper waste was added in varying proportions of 20%, 30% and 40% as partial replacement for cement. After combining with sand, cement and water, the mixture was …
Published in Recent Trends in Civil Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 29–39 Read article
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Physicochemical Characteristics of Different Brands of Edible Oil Available in Bangladesh
Abstract: Physicochemical properties like moisture content, density, smoke point, acid value (AV), peroxide value (PV), saponification value, iodine value were analyzed using standard methods and vitamin E by spectrophotometry to evaluate the quality of edible oils and also to select good quality oils among various brands of edible oils available in the local market of Bangladesh. In the study twelve brands of different oils were purchased from local market of Dhaka …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 7, Issue 3, 2018 · pp. 12–16 Read article
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Traffic Density Estimation Using Image Frames in Python
Abstract: Traffic congestion is a critical challenge in modern urban environments, leading to significant delays, environmental pollution, and increased accident rates. With the rapid growth of vehicle populations in metropolitan areas worldwide, the need for intelligent and automated traffic monitoring systems has become increasingly urgent. Traditional monitoring approaches, such as inductive loop detectors and manual surveillance, are limited in scalability, deployment cost, and adaptability to dynamic traffic scenarios. This paper presents …
Published in Trends in Transport Engineering and Applications · Vol. 13, Issue 2, 2026 · pp. 38–45 Read article
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Wimax Worldwide Inter Transfer Wireless for Wire Free World
Abstract: The main problem with broadband access today are that it is attractive pricey and it does not reach all areas. The main problem with WiFi access is that hot spots are very small, so exposure is sparse. What if there was a new expertise that solved all of these problems? This new expertise would provide: The high speed of broadband service. Wireless rather than wired access, so it would be …
Published in Journal of Open Source Developments · Vol. 2, Issue 3, 2015 · pp. 1–4 Read article
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Optimizing Green Composites for Automotive Applications Using Taguchi-Based Grey Relational Analysis
Abstract: The increasing demand for sustainable and lightweight materials in the automotive industry has driven the exploration of green composites as an alternative to conventional synthetic composites. This study focuses on optimizing the mechanical properties of green composites using Taguchi-based Grey Relational Analysis. Four natural fibers—pineapple, sisal, coir, and Nava—were reinforced with cashew resin and synthetic resin matrices, incorporating silica and granite fillers of varying sizes. Key properties, including hardness, impact …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 743–754 Read article
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Development and Comparative Study of Aluminium- Copper Metal Based Composite Through Different Routes
Abstract: The aim of this study is to develop aluminium-copper composite through powder metallurgy technique. Powder metallurgy is an art or technology which can produce exact dimension of final roducts utilizing less energy. Copper oxide (CuO) was used as the source of copper, which was extracted through a reduction process using dextrose. The reaction was thoroughly examined and reported. Commercially available aluminium powder served as source of the aluminium. Aluminium- copper …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 19–32 Read article
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A Comparative Study of Lipid Profile in Pre-Dialysis and Post-Dialysis End-Stage Renal Disease Patients
Abstract: Background: Chronic kidney disease (CKD) represents a major public health concern in India, with its prevalence increasing at an alarming rate. Individuals with CKD are at a substantially higher risk of developing cardiovascular disease (CVD), which remains the leading cause of mortality in this population. Dyslipidemia is particularly pronounced among patients with end-stage renal disease (ESRD); however, limited data are available regarding the impact of hemodialysis on lipid profile alterations. …
Published in Research and Reviews: A Journal of Medicine · Vol. 16, Issue 1, 2026 · pp. 25–31 Read article
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Na-Air Battery: The Battery of the Future—A Review
Abstract: Metal-ion batteries came into the limelight with the invention of Zn-ion battery as early as 1878, but its commercial viability came into picture in 1990 and lithium-ion cell in 1977. Since then, a number of metals have been experimented upon and similar rechargeable secondary storage batteries like Al-ion, Na-ion, Sn-ion, Mg-ion, K-ion have been developed. In this type of battery, electrochemical dynamics involves the movement of only one kind of …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 15, Issue 3, 2024 · pp. 1–19 Read article
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Machinability of Metal Matrix Composites using Wire Electric Discharge Machining: A Review
Abstract: Metal Matrix composites [MMCs] are increasingly being applied in the automotive and aerospace industries as high-performance substitutes for traditional materials. Due to these properties, namely, high strength-to-weight ratio, outstanding fracture toughness, and low density, a vast array of uses is feasible. We can control the properties of MMCs directionally as well, which makes them the perfect choice for military uses and marine and sports equipment. The machining of MMCs plays …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 303–311 Read article
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Seasonal Variation of VLF Radio wave Signal Strength at 19.8 KHz Received at Khatav India (16o46ʹN, 75o53ʹE)
Abstract: This research is a detailed study of the seasonal behavior of the VLF field strength of the waves transmitted by VLF station NWC Australia (19.8 kHz). This research was carried out by using the VLF Field Strength Monitoring System located at Khatav, India (16°46ʹN, 75°53ʹE) during the period of August 2009 to July 2010. This study explores how the ionosphere and VLF radio waves react to the solar radiation. In …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 14, Issue 3, 2025 · pp. 1–9 Read article
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Feasibility Studies on Cement Mortar Replaced with Ceramic Tile Waste as Secondary Binder
Abstract: This paper presents the results of experimental works focused on replacement of ceramic waste materials with cement in the production of cement mortar. The aim of this research work is to find the optimum percentage replacement of cement by ceramic tile waste in percentage replacement (5 to 25, 50 and 100%) mortar mixes. The ceramic waste tiles are mechanically crushed down ultrafine ceramic waste (UCW) powder passing 600 μ and …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 68–75 Read article
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Does an Association Exist Between Maternal Serum Lipid Parameters and Birth Weight of Newborn? A Cross-Sectional Analysis
Abstract: Pregnant woman undergoes profound hormonal, metabolic changes and adaptions to achieve success in terms of healthy baby as outcome. Lipids are more significantly involved as a source of energy, fat-soluble vitamins, and precursors for various hormones. We decided to study pattern of lipid profile parameters at puerperium phase, as an indicative of lipid status of woman in late pregnancy and its influence on birth weight of newborn.Cross-sectional analysis was carried …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 6, Issue 2, 2017 · pp. 46–51 Read article
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A Systematic Review on Coronary Heart Disease: A Transient Ischemic Stroke
Abstract: Coronary Heart Disease (CHD) and Transient Ischemic Attack (TIA) are significant cardiovascular and cerebrovascular disorders that often share similar risk factors and underlying pathophysiological processes. CHD involves the narrowing or obstruction of the coronary arteries due to atherosclerosis, resulting in diminished blood flow to the heart. A transient ischemic attack (TIA), often called a "mini stroke," occurs when blood flow to the brain is briefly disrupted, usually due to a …
Published in Research and Reviews : Journal of Surgery · Vol. 14, Issue 3, 2025 Read article
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Behavior of Sandwich Composites under Edgewise and Flatwise Compression; Effect of Variation of Fibre Architecture and Core Density
Abstract: The present paper is focused on the fabrication of foam–cored sandwich composites using manual hand layup technique and testing under in-plane compression. The sandwich construction comprises of polyurethane foams of five varied densities with E-glass fibre in vinylester resin as face sheets. Four different varieties of E-glass fibre are used. As compression properties are of critical importance during the design of lightweight structures, an attempt is made to study the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 18–35 Read article
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Geotechnical Influence Factors in Empirical Design of Highway Pavement: The A123 Ilorin – Lokoja Highway, Nigeria Case Studies
Abstract: Site investigation and application of geological and geotechnical influence factors on the highway were investigated. Method involved field sampling, geotechnical laboratory and x-ray diffraction analysis and use of SRTM extracted slope and drainage parameters; and their integration in a GIS based multi-criteria decision analysis to derive a subgrade suitability map as a design tool. The suitability criteria classified the highway into four (4) design sections. Section one for very low …
Published in Journal of Geotechnical Engineering · Vol. 11, Issue 3, 2024 · pp. 53–70 Read article
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The Role of Majority Functions in Enhancing Full Subtractor Performance in High-Density Logic Circuits
Abstract: In the present trend of very large-scale integration (VLSI) technology, implementing a Boolean function with the fewest number of gates (logic) has always been important. Low power design strategies now provide much more benefits than in the past. Performance, affordability, and dependability may be key issues in this area of technology design. Power dissipation is now recognized as a crucial component in the development of competitive market areas such wireless …
Published in Journal of Semiconductor Devices and Circuits · Vol. 11, Issue 2, 2024 Read article
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High Performance Multi-Valued Logic (MVL)Gate Design Using FinFET
Abstract: CMOS scaling faces challenges such as leakage, power dissipation, and short channel effects. Multi-Valued Logic (MVL) offers higher information density and reduced interconnections. This work presents a FinFET-based MVL gate design that improves electrostatic control, switching speed, and reliability. Simulation results confirm reduced leakage power and enhanced performance compared to conventional logic. The proposed architecture demonstrates scalability for advanced technology nodes. It also shows potential for low-power applications in portable …
Published in Journal of Microelectronics and Solid State Devices · Vol. 13, Issue 1, 2026 · pp. 34–45 Read article
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Influence of Different Mulches on Weed Dynamics and Yield of Cucumber (Cucumis sativus cv. Malini) in Chitwan, Nepal
Abstract: AbstractAn experiment was conducted to study the effect of mulching materials on weed dynamics and yield characters of Malini variety of cucumber under drip irrigation condition during Feb to May 2018 in Chitwan district, Nepal. The experiment was laid in one factor Randomized Complete Block Design (RCBD) with 4 replications. Four different mulching materials- silver on black polyethylene mulch, black polyethylene mulch, rice straw mulch and rice husk mulch were …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 9, Issue 1, 2020 · pp. 23–29 Read article