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62 articles for “electrostatic”
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Numerical Simulation and Modeling of Graphene Field Effect Transistors for High Frequency Applications
Abstract: AbstractIn this paper numerical simulation of graphene field effect transistor (GFET) has been performed using finite element method by solving Poisson's equation, continuity equation and energy balance equation self consistently. Various performance characteristics including charge distribution, band gap energy, transfer and output characteristics, electrostatic potential distribution and transconductance have been extracted.Keywords: Graphene field effect transistor (GFET), energy balance equation, mobility, ambipolar, numerical simulationCite this ArticleAshish Jha, Dwivedi ADD. Numerical Simulation …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 1, 2018 · pp. 27–33 Read article
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The Time and Frequency Response of Shielded Transformer Windings
Abstract: A distributed-parameter model is presented for the transient and frequency analysis of power transformers’ windings in the presence of electrostatic shielding, a technique occasionally applied for improving their initial voltage distribution. The s-domain solution takes into account the windings’ circuit parameters with special emphasis on the additional distributed capacitances between the windings’ conductors and the conducting shield which is connected to the windings’ line terminal. The closeness of the resulting …
Published in Journal of Power Electronics and Power Systems · Vol. 4, Issue 2, 2014 · pp. 33–47 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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Polymers with Non-polar Lubricants: Degradation and Triboelectric Performance
Abstract: Triboelectric nanogenerators (TENGs) transform electrical energy from kinetic energy with the assistance of electrostatic interactions and triboelectrification. TENGs provide countless benefits, together with cheap prices, straightforward processing, and broad enforceability. In solid interaction TENGs, wear and friction, moreover, abbreviate their life span. In this study, we assessed the tribological efficiency and power efficiency of polymeric in TENG devices with non-polar lubrication limiting friction and wear. The viscosity of the lubricant …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 3, 2022 · pp. 30–33 Read article
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Simulation Study of Tapered Shape FinFET
Abstract: During recent years, nonplaner tri-gate (TG) field-effect transistors (FETs) such as FinFETs have been extensively studied for the enhancement of electrostatic control and suppression of short-channel effects (SCEs) in the sub50 nm regime. As the device scaled, it is observed that the shape of the rectangular FinFET becomes tapered shape. This paper presents the design and analysis of a tapered-shaped FinFET. By varying the sidewall inclination angle of a rectangular …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 21–31 Read article
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Recent Developments in MEMS Speaker Technology
Abstract: A sizable market with respect to portable audio calls for greater demand in MEMS speaker technology and manufacturing. A proper selection of electrostatic/electromagnetic actuators in a MEMS speaker gives rise to improved electromechanical efficiency. Summarizing the most recent developments could help in understanding the current technology and its scope. In this paper, several design selections and various types of MEMS speakers which are integrated with necessary components and circuitry in …
Published in Journal of VLSI Design Tools and Technology · Vol. 11, Issue 1, 2021 · pp. 29–34 Read article
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Unified Mathematical Framework for Semiconductor Devices, Junction Dynamics, and Circuit Analysis
Abstract: Semiconductor devices form the fundamental building blocks of modern electronic and integrated circuit systems, where their electrical behavior is governed by coupled carrier transport, electrostatic, and circuit-level phenomena. This work presents a unified mathematical framework for modeling semiconductor devices, junction dynamics, and their interaction with electronic circuits. The formulation integrates fundamental semiconductor relations, carrier concentration, drift–diffusion transport, Poisson’s equation, continuity equations, PN-junction behavior, diode characteristics, bipolar junction transistor operation, and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 13, Issue 2, 2026 · pp. 37–47 Read article
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Impact of Sol–Gel Processing on Dielectric and Energy Storage Properties of BaTiO3 Nanoceramics
Abstract: Barium titanate (BaTiO3) is a widely studied ferroelectric material because of its high dielectric permittivity and strong potential for electrostatic energy storage applications. In this study, BaTiO3 nanoceramics were synthesized using a controlled sol–gel processing route to investigate the influence of synthesis conditions on their dielectric relaxation and energy storage performance. The synthesized powders were calcined and subsequently sintered at temperatures ranging from 1100°C to 1300°C. Structural analysis using X-ray …
Published in Research & Reviews : Journal of Physics · Vol. 15, Issue 2, 2026 · pp. 11–25 Read article
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Development and Performance Evaluation of a Polyethersulfone–Graphene Oxide Ultrafiltration Membrane for Simultaneous Drug Delivery and Virus Removal: An Experimental Investigation
Abstract: The development of multifunctional ultrafiltration membranes for simultaneous controlled drug delivery and viral removal has gained considerable attention in biomedical engineering, pharmaceutical sciences, and water purification. Polyethersulfone (PES) membranes offer excellent thermal, chemical, and mechanical stability; however, their hydrophobicity can limit permeability, antifouling performance, and biocompatibility. This study proposes the fabrication of PES–graphene oxide (GO) ultrafiltration membranes using the phase inversion technique, with systematic variation of GO concentration to optimize …
Published in International Journal of Membranes · Vol. 3, Issue 2, 2026 Read article
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Design and Analysis of Nano-Vibratory Beam Gyroscope
Abstract: This paper presents the modeling and analytical simulation task of a nano cantilever beam gyroscope. Micro/nano gyroscope as an effective rate measurement sensor is of extreme importance in several modern equipments including aircrafts, satellites and even in small cameras. Several types of such gyroscopes are in use and various research simulations were performed over the last one decade. Compared to tuning fork and ring type, the beam type gyroscopes are …
Published in Trends in Machine design · Vol. 2, Issue 1, 2015 · pp. 1–7 Read article
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Performance Analysis of MEMS-based Ultrasonic Transducer with Different Membrane Materials
Abstract: Microelectromechanical systems (MEMS)-based capacitive micromachined ultrasonic transducer (CMUT) follows the reciprocity principle in the same way as piezoelectric transducers and has proven to be a good alternative to conventional piezoelectric transducers in many aspects such as sensitivity, transduction efficiency and bandwidth. CMUT transducers like piezoelectric transducers operate on resonance frequency to get possible ultrasound output, and high sensitivity in reception. The performance of the CMUT is highly affected by material …
Published in Recent Trends in Sensor Research & Technology · Vol. 1, Issue 3, 2014 · pp. 1–9 Read article
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Studies on Cr (VI) Removal from Aqueous Solution using Al2O3 and ZnO Nanoparticles Composite
Abstract: Cr (VI) is a heavy metal and is considered to be toxic both to environment and human beings after a permissible limit. The removal of Cr (VI) using conventional methods was ineffective. With introduction of nanotechnology, the remediation of Cr (VI) has become more easy and effective. Nanoalumina has been an efficient adsorbent system for the adsorption of different heavy metals. It has an excellent adsorption capacity for metal ions …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 1, 2014 · pp. 39–45 Read article
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3D-QSAR and Molecular Docking Studies of Triazol-Cycloalkanol Derivatives Used as Potent 3-Dehydroquinase II Inhibitors Against Mycobacterium tuberculosis
Abstract: Tuberculosis is a life threatening infectious disease caused by gram positive bacteria mycobacterium tuberculosis. Emergence of drug resistance, multi drug resistance and extensively drug resistance strain of mycobacterium make the situation more worst. It increases the mortality rate of tuberculosis patient, time duration and cost of treatment. Various inhibitors and drug molecules are designed to combat this fatal disease. Enzymes of shikimate pathway are responsible for production of essential amino …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 5, Issue 3, 2015 · pp. 18–28 Read article
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Continuous Charging of Spacecraft Fuel Cells by Hydrogen and Oxygen, Obtained in a Specially Designed Separator, Powered by a Solar Panel, During Long-term Space Flight
Abstract: The flight control of the spacecraft (SC) is carried out at the expense of onboard electrical power. The onboard electric power supply of the spacecraft ensures the functioning of all its instruments and equipment (propulsion system, controls, communication systems, instrument complex, heating, etc.). The power supply system of a spacecraft is the most important system that ensures both the life of the spacecraft itself and the crew that controls this …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 44–59 Read article
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Electrical Performance of the Silicon Nanowire Double Gate FET
Abstract: Silicon nanowire (SiNW) metal-oxide-semiconductor field-effect transistor (MOSFET) is a promising candidate of future CMOS device for further scaling. As the cross-sectional dimensions of SiNW channel is very small, cross-sectional shapes should affect electrical characteristics of SiNW FETs. In this work, effects of cross-sectional shapes of gate stack formation on (i) properties of double gate of SiNW FET; (ii) carrier transport properties including on-current, effective carrier mobility and inversion charge density; …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 22, Issue 3, 2020 · pp. 5–11 Read article
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Electrospun Structures for Dairy and Food Packaging Applications
Abstract: Electrospinning is an electrostatic fiber fabrication technique, in which a nonwoven mat of long fibers can be assembled into a three-dimensional structure due to bending instability of the spinning jet. Owing to its versatile nature and potential for applications in diverse fields including food packaging has been gaining more interest. It is a flexible and easy tool for producing ultrathin sized by applying electrical force. In this process, altering the …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 6, Issue 1, 2017 · pp. 17–23 Read article
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Method of Obtaining of Concentrate of Rapidly Reproducing Microalga for Converting of the Emitted Carbon Dioxide into Oxygen and Food Biomass for Feeding of the Crew of an International Space Station during Long Flights
Abstract: It is known that the use of microalga solves the problem of utilizing carbonic acid formed during the life of astronauts and replenishing oxygen in the spacecraft atmosphere. There is evidence that among the mass of microalga used for research as oxygen products for space flights, chlorella and spirulina are suitable. In the field of creating a life support system (LSS) of the International Space Station (ISS), research is being …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 10, Issue 2, 2021 · pp. 37–48 Read article
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Ab Initio and Density Functional Theory Studies on D-Serine
Abstract: The Hartee-Fock and density functional method (B3LYP) with 6–311++G (d, p) basis set were employed to study the structural and spectroscopic properties of amino acid D-serine in ground state. The structural and vibrational parameters of amino acid D-serine were obtained using optimised conformer. Using Vibrational Energy Distribution Analysis (VEDA) 4 program and theoretically obtained FTIR and FT-Raman data complete assignment of vibrations and analysis of fundamental modes of the compound …
Published in Research & Reviews : Journal of Physics · Vol. 9, Issue 3, 2020 · pp. 29–45 Read article
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A New Method for Continuous Charging of Spacecraft Fuel Elements Under Conditions of Long-term Space Flight
Abstract: Any flight control of a spacecraft (SC) depends on electricity on board. With the help of electricity, all its instruments and equipment (propulsion system, controls, communication systems, instrument complex, heating, etc.) function on board of the spacecraft. The power supply system (PSS) of a spacecraft is a critical system that ensures its life. The main base of the spacecraft power supply system is a system that generates direct electric current. …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 11, Issue 3, 2022 · pp. 25–39 Read article
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3D-QSAR Studies on Protein Phosphatase 2A Inhibitors as Anti-cancer Agents
Abstract: The tremendous efforts by researcher indicates that cantharidin, nor cantharidin and their analogues shows anti-cancer activity due to their inhibition of cancer cell lines such as HT29, SW480, MCF-7, A2780, H460, A431, DU145 and L1210. The anti-cancer activities of cantharidin, nor cantharidin and their analogues involve the inhibition of serine/threonine protein phosphatises (PPs) activity. In this study, three-dimensional quantitative structure activity relationship (3D-QSAR) like comparative molecular field analysis (CoMFA), and …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 5, Issue 3, 2018 · pp. 1–19 Read article