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727 articles for “Layer”
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Computational Modeling on Behavior of Annular Stone Column with Variation of Parameters in Stratified Soils
Abstract: Many studies made reports on the soft soil improvement by the application of stone columns.Ordinary stone columns are installed by vibro-replacement method in the field to be get compacted. The material requirement will be based on diameter of column and encasement around the column can be provided to get more loading ability. In this study, the modification of stone column by changing its structure from solid stone column to hollow …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 3, 2022 · pp. 9–17 Read article
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Analysis of DIBL Effect in MOSFET Working
Abstract: AbstractOne of the most widely used electronic devices, particularly in digital integrated circuits, is the metal insulator semiconductor (MIS) transistor. Most of the existing transistors used in fabrication of integrated chips are with junctions. The device scaling is growing the channel length between junctions in devices are scaling gone down to 10 nm. Drain Induced Barrier Lowering (DIBL) effect is prominent as the feature size of MOS device keep diminishing. …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 3, 2018 · pp. 33–40 Read article
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Influence of Metal Contacts on Graphene Based Chemical Sensor Devices
Abstract: Graphene is a versatile material suitable for the device applications, both under normal and harsh environmental conditions. The graphene based devices require stable metallic contacts, both ohmic and rectifying, for reproducible operations. This is especially applicable to the few layer and multilayer graphene. This article deals with different ohmic and Schottky contacts on graphene. The methods of developing contacts by pre deposition and post deposition processing are highlighted. Furthermore, the …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 3, 2016 · pp. 1–9 Read article
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Growth Mechanism Dependent Room Temperature Electrical Properties of Complex Spinel Oxide Nanostructures
Abstract: Here we present the investigation on growth mechanism and corresponding electrical properties of complex spinel zinc stannate (Zn2SnO4) nanostructures synthesized using VLS (vapour-liquid-solid) method in a vacuum operated thermal CVD setup. GAXRD, Raman and Room temperature resistivity, mobility and carrier concentration of variety of nanostructures of Zn2SnO4 have been analysed to understand the effect plausible growth mechanism dependent properties. The corresponding role of catalyst layer thickness during growth as well …
Published in Journal of Microelectronics and Solid State Devices · Vol. 7, Issue 3, 2020 · pp. 20–25 Read article
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Cathodoluminescence method to scheme optical remains
Abstract: Cathodoluminescence (CL) microscopy replaces light generation by a focused electron-beam so as to visualize optical information at resolution of electron microscope. High-resolution imaging has pursued on strongly cathodoluminescent substrates, such as glass. Method has been applicable for bio- and nano-sciences, said as CL identification of bio-markers within cells as well as ceramic character interpret to describe plasmon components from glass supported devices, given by, sensors, waveguides, plasmonic tweezers, and thin-film …
Published in Journal of Microelectronics and Solid State Devices · Vol. 8, Issue 2, 2021 · pp. 7–14 Read article
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Beyond Conventional: Nanostructures as Key Enablers for Efficiency Enhancement in Thin Film Photovoltaics
Abstract: One of the key options for lowering the cost of photovoltaic production through the reduction ofactive material utilisation is thin-film solar cells. However, thin film solar cells' performance may beconstrained by low light absorption brought on by a low absorption coefficient or by an inadequatelythick active layer. Minimising expenses and increasing overall efficiency in thin-film solar cells needimproving light absorption that can be converted into electrical power. As a result, …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 37–43 Read article
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Investigation of Inter Delamination Properties and Morphological Analysis of Natural Fiber-Reinforced Polymer Matrix Composites
Abstract: AbstractNatural fibers are strong, light weight, renewable, cheap, completely or partially recyclable, and biodegradable. The various types of natural fibers are flax, cotton, jute, sisal, kenaf pineapple, bamboo, banana, wood, etc. In this work, sisal fibers and banana fibers have been employed as the main reinforcing materials with epoxy resin as the matrix in order to increase the effectiveness of natural fiber-reinforced polymer matrix composites. In this study, it is …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 1–7 Read article
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Influence of Bi2O3 on Physical, Optical and gamma radiation Properties of BaO-Bi2O3-B2O3-CuO and BaO-Bi2O3-B2O3-Fe2O3 glasses
Abstract: In this present work glasses with chemical composition 30BaO-XBi2O3-(69-X)B2O3-1CuO and 30BaO-XBi2O3-(69-X)B2O3-1Fe2O3 (X = 0, 5, 10, 15, 20 and 25 mole%) have been prepared and labeled as BBBC and BBBF series, respectively. Traditional quenching method was employed for making these samples. XRD diffractograms confirmed that the materials were amorphous. Physical, optical and structural properties were studied with the influence of Bi2O3 concentration. The density of both BBBC and BBBF series …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 20–31 Read article
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Utilization of Bentonite Clay Coupled with Potash for the Synthesis of Octadec-9-Enoic Acid Methyl Esters of Pongamia Pinnatatriglycerides
Abstract: Due to the ever increasing human population worldwide, especially in the developing countries across the world; renewable energy sources are in the primary focus of the scientists and researchers. In addition, the depletion of the reserves of the fossil fuels along with the increased consumption of the available reserves has led to wide spread global unrest. Complementing the above, there are significant environmental problems namely global warming due to increased …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 72–78 Read article
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Testing for Shielding and Estimation of Linear Absorption Coefficient Using Gamma Irradiation of Polymer Composites
Abstract: The polymer composites were developed for the application of shielding material in a radiation environment. To determine the linear absorption coefficient of the developed materials for neutrons; an experiment was carried out using an Am-Be neutron source of strength ~3 × 107 n/s. The composites of Epoxy polymer were filled with different three fillers; Graphite, Lead, and Boron Nitrided Nanopowder prepared with the same filler content. Transmitted neutrons were detected …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 59–68 Read article
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Static and Dynamic Analysis for Optimum PZT Positioning and Optimum Voltage in a Delaminated Smart Composite Beam
Abstract: This paper conducts a comprehensive static and dynamic analysis of a delaminated composite beam with and without a piezoelectric layer making use of the principle of minimum potential energy. A new finite element model for composite laminate with delamination defect using cohesive zone method is developed using ANSYS APDL. A lead zirconate titanate (PZT) patch is embedded over the delaminated model following the results obtained from static analysis. The work …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 13–27 Read article
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Mechanical Properties of Composites Made from Waste PET and Coconut Husk Fibres Using an Innovative Method
Abstract: The main purpose of this study was to develop a composite material based on two waste products, namely, polyethylene terephthalate (PET) bottles and coconut husk fibres using a simple innovative method to improve its mechanical properties. The fibres, after extraction, were treated with 5 wt% NaOH. They were then coated with a thin layer of polyester resin. The composite specimens were then manufactured in an industrial furnace. The shredded PET …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 56–71 Read article
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Electrochemical Exfoliation of Graphene Oxide (GO) and Thermally Reduced Graphene Oxide (TrGO) Using Ecofriendly Reducing Agent as Cow Urine
Abstract: The Graphene oxide (GO), the reduced form of GO i.e. (rGO) with thermally reduced graphene oxide (TrGO), have concerned significant interest in various fields with their exceptional properties. We investigate the electrochemical exfoliation processes of GO and rGO to understand their structural and electrochemical behavior of GO and TrGO through various characterization techniques. The electrochemical exfoliation method offers a versatile and scalable approach for the mass fabrication of the materials …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 89–100 Read article
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The Frequency and Transient Analyses of a High Voltage Bushing/Transformer Cascade
Abstract: This paper investigates the frequency characteristics and electromagnetic transients of a typical system composed of a high voltage bushing and a power transformer connected in cascade. Detailed distributed-parameter Laplace-domain models are adopted for the digital simulations. These parameters include, among others, the transformer winding’s series inductance, its capacitance to ground and the inter-turn capacitances. Moreover, the number, the geometrical data of the capacitively-graded bushing’s conducting foils and the dielectric insulating …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 1, 2019 · pp. 42–53 Read article
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A Contribution to the Frequency and Transient Analysis of High Voltage Bushings
Abstract: The paper suggests a method for determining the frequency characteristics and transient response of capacitively graded high voltage bushings. It is based on an s-domain circuit model that describes the grading conducting foils and the insulating layers. In most cases, they are of different axial lengths. A system of simultaneous differential and algebraic equations is derived taking these differences into account. Its closed-form solution, subject to the boundary conditions, can …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 1, 2019 · pp. 15–26 Read article
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Productivity of Hydraulically Fractured Calcite Rich Shale Reservoirs Enhanced by Acid
Abstract: The current low oil prices have highlighted the need for enhancement to current production from shale formations. Prolonging the production life and increasing productivity of the fracture network in the shale plays can be a way to improve the economics. Many shale wells, drilled and completed based on current completion strategies, show sharp decline after initial flash production. One of the reasons behind this can be attributed to closure of …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 54–68 Read article
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A Study on the Low Salinity Waterflooding (LSW) in a Part of a Depleted Oilfield of Upper Assam Basin
Abstract: Maximizing the hydrocarbon recovery from depleted oilfields is the biggest challenge now a days which becomes an opportunity for advanced EOR technologies. One of such EOR technology that can promote the oil recovery efficiency from such fields is the low salinity waterfloofing (LSW) which gains the attention of many researchers due to its easiness to use implications, less cost and environment-friendly nature. Different studies have shown that fines migration, pH …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 30–38 Read article
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Inhibitors of steel corrosion in pipelines
Abstract: Traditions of similarity in test methods have evaluated different efficiencies of different inhibitors. Electrostatically adsorbed green organic inhibitors act as mixed type double layer interactions to steel surfaces. Hydro distillation of plant originated oils is good inhibitors to corrosion of steel, achieved from medicinal grounds. Drinking water corrosion responds maximum numbers of ionic variables to deal with additive mechanical variables for studies in corrosion of steel. Intentional injections of HCl …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 17–26 Read article
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Vehicle Hybridization: Concept of future car engine by fuel – compressed air combination.
Abstract: Nowadays, Vehicle’s exhaust product is one of the sources of environmental problems in India. Their products of combustion are causing the greenhouse effect, depletion of Ozone layer, etc. On the other hand, a case study research on fossil fuel in the year 2004, predicts that if the oil is consumed at the current rates, 80% of the entire available resource will be consumed very soon. So now we need to …
Published in Journal of Production Research & Management · Vol. 8, Issue 3, 2018 · pp. 38–41 Read article
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Report on the Novel Electrical Characteristics of Microelectronic High Electron Mobility Transistors to Establish a Low-Cost Microelectronics Laboratory in the National Institute of Technology Arunachal Pradesh
Abstract: AbstractIn this work, total 22584 individual simulation-outputs are reported according to the performed simulation-studies on the microelectronic AlGaN/GaN high electron mobility transistors (HEMTs). This series of simulation work has been performed using the SILVACO-ATLAS software tool on the basis of already established theories related to the semiconductor-physics of HEMTs. In this work, the drain characteristics are investigated with respect to the aluminium mole fraction, drain voltage, gate voltage, gate length …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 2, 2017 · pp. 6–28 Read article