Articles techniques et présentations

Optimization of the shape of material for improving the power output of thermomagnetic oscillator Shivam Shukla a and Deepak K a,* a Department of Metallurgical Engineering, Indian Institute of Technology (BHU), Varanasi – 221005 *Corresponding author : deepak.met@iitbhu.ac.in Abstract ... En savoir plus

Cassegrain-type reflective objectives are widely utilized when performing high resolution infrared optical micro-spectroscopy experiment. Experiments involving the mixing of two or more colors of photons, widely separated in wavelength, greatly benefit from such mirror-based objectives ... En savoir plus

Plasma chambers used for semi-conductor processing are complex machines involving high power inputs and intricate reaction chemistry during operation. Consequently, components of these chambers undergo extreme thermal and mechanical stresses, along with erosion and other forms of damage. ... En savoir plus

During usage, storage, and transportation, electronic products often become affected by a few unwanted adverse effects of the surrounding environment that compromise their working performance, reliability, and device life. There is evidence that environmental effects cause 52% of such ... En savoir plus

The high-power microwave sources generate waves with the output mode of TM01 mode which has null at the boresight upon radiation. The output mode of the source is transformed to some other mode having a maximum field pattern at the boresight such as TE11 mode. In this work, a compact, ... En savoir plus

Chipmakers widely use the plasma-enhanced chemical vapour deposition (PECVD) technique for depositing thin dielectric or conducting films on wafers. The primary objective for a deposition process is to have a good flow and species uniformity on the wafer. Typically, a carefully designed ... En savoir plus

Acoustic emissions generated by active defects in structures, like bridges, aircraft, and pipelines, play a crucial role in detecting flaws in their structural integrity by non-destructive evaluation techniques. Commercially used acoustic emission (AE) sensors are made of piezoelectric ... En savoir plus

In this paper, we report FEM studies of the effect of unwanted interfering structural vibrations on the performance of an underwater Acoustic Vector Sensor (AVS) performed in the COMSOL Multiphysics simulation tool. An AVS is a compact sensor that measures a four-dimensional vector ... En savoir plus

This study presents simulation findings from a 4-way link box assembly, aimed at understanding temperature-related challenges. The primary objective was to assess maximum temperatures within the assembly, focusing on the Complete Assembly, UET, Copper Busbar, and Wedge Link Busbar. ... En savoir plus

Transformer bushings are power system equipment installed on transformers tank to connect overhead conductor & transformer leads. These Bushings at high voltages carry large currents leading to higher temperature & catastrophic failures. Whereas excess insulation further reduces ... En savoir plus