A5033216454- Advancements in Semiconductor Devices and Circuit Design
- Analog and Mixed-Signal Circuit Design
- Magnetic confinement fusion research
- Semiconductor materials and devices
- Sensor Technology and Measurement Systems
- Silicon Carbide Semiconductor Technologies
- Advanced X-ray and CT Imaging
- Ionosphere and magnetosphere dynamics
- Particle accelerators and beam dynamics
- Electromagnetic Compatibility and Noise Suppression
- Thermochemical Biomass Conversion Processes
- Neural Networks and Applications
- Structural Health Monitoring Techniques
- Fusion materials and technologies
- Semiconductor Quantum Structures and Devices
- Nonlinear Dynamics and Pattern Formation
- Medical Imaging Techniques and Applications
- Advanced MEMS and NEMS Technologies
- Low-power high-performance VLSI design
- Advanced Adaptive Filtering Techniques
- Advanced Memory and Neural Computing
- Radiation Dose and Imaging
- Digital Filter Design and Implementation
- Nuclear Physics and Applications
- Silicon and Solar Cell Technologies
Bhabha Atomic Research Centre
2002-2024
Institut de Recherche sur la Fusion par Confinement Magnétique
2024
CEA Cadarache
2024
École Polytechnique Fédérale de Lausanne
2022-2024
Homi Bhabha National Institute
2022-2023
Banaras Hindu University
2020-2022
Indian Institute of Technology BHU
2022
Bhabha Atomic Research Center Hospital
2009-2022
Indian Institute of Technology Dhanbad
2018-2022
Galgotias University
2021
We report observations of nonlinear two-plasmon decay instabilities (TPDIs) a high-power microwave beam, process similar to half-harmonic generation in optics, during electron cyclotron resonance heating tokamak. TPDIs are found occur regularly the plasma edge due wave trapping density fluctuations for various confinement modes, and frequencies both observed daughter waves agree with modeling. Emissions from cascade subsequent decays, which indicate ion Bernstein waves, correlated fast-ion...
For a four wheeled mobile robot trajectory tracking concept is developed based on its kinematics. A time–indexed path in the plane consisting of position and orientation. The modeled as non holonomic system subject to pure rolling, no slip constraints. To facilitate controller design kinematic equation can be converted into chained form using some change co-ordinates. From model backstepping derived. Simulation results demonstrate such strategy for kinematics indeed gives rise an effective...
An affordable, reliable and clean energy supply is the major challenge facing by modern world. Biomass playing a promising role to that, but gasification technology able convert biomass efficiently valuable gases for power heat generation vital need. The aim of this study develop robust computational fluid dynamics (CFD) model better understand thermochemical processes selected (rubber wood) in 20 kW downdraft gasifier, which includes all four zones, drying, pyrolysis, oxidation reduction. A...
In this article, sufficient conditions for fixed-time synchronization of time-delayed quaternion-valued neural networks (QVNNs) are derived. Firstly, QVNNs decomposed into four real-valued systems. Then using the available lemmas and by constructing Lyapunov function, criterion is proposed. Activation functions satisfy Lipschitz condition. A suitable controller has been designed to synchronize master–slave The effectiveness proposed result validated through a comparison settling time...
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The current conveyor is a newly introduced promising circuit building block. In this paper, its history has been traced since invention in 1968 and the present state of affairs reviewed. At tendency to replace as many operational amplifier circuits by their versions possible. Analog computation, gyrators, mutators, inductor simulation, frequency dependent negative resistance, transfer function realization, various types filters, RC oscillators etc. are some main fields where proved...
In silicon solar cells, forming good ohmic contact between the emitter and metal with minimum resistance is critical to achieve peak electrical performance [1]. commercial screen printable silver paste commonly used form contact. Factors related chemistry, process conditions cell wafers influence quality. this paper, effect of chemistry sheet on quality described. Several chemistries were tested for Transmission Line Model (TLM) measurements 45-100 Ω/□. The series cells was recorded over 50...
The interface between nanostructured materials and plant cell organelles, such as chloroplasts, has been recently found to have potential impart organelles with new functions enhanced performances. nanobionics-based technologies can be implemented provide the precise quantity of nutrients pest control systems improve crop productivity concerns are growing regarding various agricultural difficulties poor nutrient use, stagnant yields, deficiencies, climate change, water scarcity. creation...
It has been realized that quantum computing is one of the latest technologies using reversible logic. observed increasing growth transistor density, power consumption will reach their limits in conventional technologies. In Circuits during logic operations bits information erased resulting dissipation energy significant amount. Thus, if are designed so can be preserved, use reduced. case computation, not lost. We technology for minimizing consumption, heat dissipation, speed etc. This paper...
Abstract Electron–cyclotron waves are a tool commonly used in tokamaks, particular to drive current. Their ability current very localized manner renders them an optimal for MHD mode mitigation. However, such applications require high accuracy and good control of the power deposition location efficiently target magnetic islands. It has been indirectly observed that suprathermal electron distribution, resulting from wave absorption, is broader than what expected experimentally-constrained...
Abstract Runaway electrons (REs) are a concern for tokamak fusion reactors from discharge startup to termination. A sudden localized loss of multi-megaampere RE beam can inflict severe damage the first wall. Should disruption occur, existence seed may play significant role in formation and magnitude its current. The application central electron cyclotron resonance heating (ECRH) Tokamak à Configuration Variable (TCV) reduces an existing population by up three orders within only few hundred...
This paper presents a methodology that combines physicochemical modeling with advanced statistical analysis algorithms as an efficient workflow, which is then applied to the optimization and design of biomass pyrolysis gasification processes. The goal was develop automated flexible approach for analyses such presented here can also be directly other conversion processes and, in general, all those parametrized model available. A process initially formulated. Within this model, hierarchy...
In this article, an attempt is made to develop a 3D gas–solid fluidized bed reactor (FBR). Basically, it deals with simulation of FBR in computational fluid dynamics (CFD) using the software, Ansys Fluent v14. The flow carried out Eulerian multifluid model which integrated solid particle kinetic theory. coefficients exchange momentum are estimated Syamlal & O'Brien, Gidaspow, Wen-Yu, and Huilin–Gidaspow drag functions. results have been validated experimental data available literature had...