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1961 articles for “Disc” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Progress of Graphene/Silicon Solar Cells-Present Status & Future Prospect
Abstract: The ever-increasing demand for next-generation high efficiency low cost solar cell has triggered interest to search for new materials which are easily available, environmentally benign as well as cost-effective. In this context, graphene has attracted tremendous importance due to its outstanding optical, electrical and mechanical properties, for possible application in future graphene/silicon Schottky and heterojunction solar cells. Significant progress has been noted as the power conversion efficiency of such cells …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 3, 2020 · pp. 19–29 Read article
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DC and RF Analysis on Specific Quantum-Well Heterostructures
Abstract: Polarization-graded AlGaN back-barrier nano-layer is introduced in high electron mobility transistor (HEMT) structure to have an improved drain current characteristics and better radio-frequency performance, using two-dimensional drift-diffusion simulation by SILVACO-ATLAS physical simulator. In this work, the AlGaN/AlN/GaN/AlGaN/GaN double heterojunction HEMT structure is optimised with graded back barrier layer to study the DC and RF performances. Investigation of this structure with graded back barrier layer is the novelty of this work. …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 1, 2022 · pp. 1–13 Read article
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A Review of Thermal Spray Coatings
Abstract: Thermal spray coatings are applied on surface of metals to improve their functional properties. Thermal spray technique offers the possibility to deposit wide range of ceramic coatings on metallic components. In the present paper we discuss the various types of coatings deposited using thermal spray techniques. The effect of rare earth metal oxides on microstructure and mechanical properties of the coatings are being discussed.
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 2, 2020 · pp. 1–6 Read article
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A Brief Overview of the Removal of Fluoride and Chromium Using Polymer Adsorbents
Abstract: Water tainted with heavy metals are the serious worldwide issues face today because of economic and industrial growth. Even at trace amounts, hexavalent chromium is a significant metal ion pollutant that is highly harmful to humans, animals, plants, and microbes. There are several methods for purifying water, but adsorption is one of the most straightforward, practical, and cost-effective approaches. Chromium is one such significant metal that may be released by …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 2, 2023 · pp. 1–14 Read article
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Autonomous Vehicles: The Future of Transportation
Abstract: AbstractAutonomous vehicles are anticipated to be the future of automobile transportation which is efficient safe and cost effective, several automobile companies have put their foot in the vast segment of autonomous vehicles and are currently working towards manufacturing driverless vehicles. From Internet giant Google Inc. to major Automobile manufacturing companies like BMW, Mercedes, Toyota, Tesla motors and world’s largest Taxi firm Uber, all major and minor companies are putting a …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 1, 2020 · pp. 8–13 Read article
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An Overview of the Design and Optimization of Antennas Employing Machine Learning Algorithms and Methodologies
Abstract: This paper offers a comprehensive exploration of the integration of machine learning (ML) techniques in antenna design and optimization, reflecting the burgeoning interest and potential impact of ML in emerging technologies. The first segment conducts a detailed literature survey, elucidating conventional computational electromagnetic and numerical methods preceding an in-depth discussion on the core facets of ML, encompassing diverse learning categories and frameworks. Additionally, it provides a mathematical exposition on regression …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 10, Issue 3, 2023 · pp. 1–12 Read article
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Design of Active Filter using CMOS based IInd Generation Current Conveyor in Current Mode
Abstract: Traditional design techniques used in VLSI are in voltage mode, but these have drawbacks like low bandwidth, non-linearity and less gain. Current conveyors act similar to operational amplifiers but are advantageous over older VLSI design techniques because of high bandwidth-gain product, reduced power consumption etc. This paper consists of two parts: circuit diagram of current conveyor (which is a three terminal analog device) is discussed first and its working is …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 1, 2019 · pp. 15–21 Read article
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Analysis of Three Phase AC-DC Front End Converter with Vector Control
Abstract: The revolution in power electronics has opened in last few years widespread use of power converters of different power rating from few Watts to Mega-Watts. 3 phase AC-DC converters (Controlled rectifier) are most widely used power converters as the distributed electric power is AC supply, while the applications based on DC supply as well as variable frequency AC supply, need conversion of AC supply into DC supply. Large current harmonics …
Published in Journal of VLSI Design Tools and Technology · Vol. 11, Issue 3, 2021 · pp. 19–30 Read article
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PHYSIOCHEMICAL ANALYSIS OF WASTE WATER COLLECTED FROM THREE MAJOR RIVERS IN MONSOON SEASON FROM PALAKKAD
Abstract: Various waste management techniques were implemented in India have failed due to various reasons, the major reasons are industrial growth and urbanization. The pollution impacts on aquatic communities can be observed directly to the industrialized centres, which discharges series of chemical pollutants to effluent systems.. These wastes mainly encompasses a broad range of contaminants such as petroleum hydrocarbons, chlorinated hydrocarbons and heavy metals, various acids, alkalis, dyes and other chemicals …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 2, 2018 · pp. 51–55 Read article
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A Feasibility Analysis on New Drainage Channel to Control Flooding in Southwest Chennai Using Hydraulic Model
Abstract: Flood Management plays a major role in minimizing the socio-economic loss in a watershed. In the urban context, flood is due to uncontrolled settlements of migrated population along the length of surplus carrying channels. This study focuses on feasibility analysis of existing drainage channel and proposed drainage channel network as structural management measure for a watershed, proposed by public work department of Chennai to reduce the impact of flood. In …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 1, 2015 · pp. 1–7 Read article
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Design of A Spillway: A Case Study
Abstract: A hydraulic structure constructed to discharge surplus water from the reservoir into the river on the downstream side without endangering the safety of the dam is known as Spillway. Spillway is very important structure in any dam project. Many dams have failed because of incorrect design of spillway. Spillway is most vulnerable part of dam. Proper attention has to be given to the design and construction of spillway. Spillway can …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 2, 2015 · pp. 19–28 Read article
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Rainfall Runoff Modeling Using SCS-CN Method: A GIS Based Case Study of Pawana Watershed
Abstract: In a country over 125 million, we are proudly an agricultural based economy, wherein 51% of population is indulged in any business related to somehow with agriculture. Of course, we still are in a developing stage as far as methodologies or their implementation is concerned. But surely somewhere we have started focusing on modern techniques and strategies to improve pattern, productivity, profit and all. The two vital natural resources required …
Published in Journal of Water Resource Engineering and Management · Vol. 3, Issue 3, 2016 · pp. 50–58 Read article
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A Study on Earthquake Resistance Building Construction
Abstract: Earthquake is one of the largest and greatest dangerous hazards of the property and life in the world. Due to its quick and sudden reaction, the buildings, highways, bridges, tunnels etc., are damaged very fast and also causes so many fatal and nonfatal injuries of people. For the safety purpose, many precautions during the design and construction time were considered in the structures. In this paper, we have done a …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 1–5 Read article
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A Remote Sensing Approach for Monitoring Seasonal Variations in the Water Quality of Lake Guaiba, Southern Brazil
Abstract: Freshwater resources in the tropics are subjected to high rate of pollution due to algal blooms during the summer and due to particulate and organic waste discharge from urban areas during spring. Landsat TM images were used to calculate biochemical oxygen demand and turbidity of Lake Guaiba in Southern Brazil during 2010–2011. The results obtained were compared with the values derived from a yearlong sampling data which were analyzed in …
Published in Recent Trends in Civil Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 1–10 Read article
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Bridge Scour by HEC-RAS Model: A Case Study over Ganga Bridge
Abstract: Lacey’s equation is often used to find out the scour depth in rivers in India. Lacey’s regime formula (1930) was developed on the basis of limited field data from irrigation canals in Punjab Province having discharge ranges from 0.70 to 173 m3/s. The total scour at a highway crossing is comprised of three mechanisms: long-term aggradation-degradation, contraction of reach, and local scours at piers and abutments. In the present study, …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 1–8 Read article
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IOT Based Social Distancing & Monitoring Robot For Queue’s
Abstract: Social distancing is very important for stop spreading I gift a unique technique to mechanically discover pairs of humans in an exceedingly jammed situation in agency aren't adhering to the social distance constraint, i.e., concerning six feet of area between them. Our approach can make no assumption concerning the group density or pedestrian walking directions. The automaton consists of a three-wheel style system want to drive the robotic vehicle.. The …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 2, 2022 · pp. 1–6 Read article
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Health Monitoring Iot Based Virus Fever Detection System Using Non Inversive Method
Abstract: Health monitoring IoT to detect and count platelet to diagnose virus Fever this reduces labour intensive, time and cost. Vital signs are indicators of the body's fundamental processes. Body temperature, heart rate, breathing rate, and respiration are the four primary vital indicators that healthcare professionals regularly check (respiration). They can be measured in a hospital, at home, during an emergency medical situation, or while travelling. On-invasive blood related parameters covering …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 3, 2022 · pp. 19–26 Read article
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Review of Haptic Gloves for Touching Virtual Reality
Abstract: Individuals who have ever been immersed in a Virtual Reality (VR) environment have likely fantasised about the possibility of being able to physically interact with virtual items as well as manipulate them with only their hands. Unfortunately, this demands a lot more than just a graphic board that is quick as well as a display that is immersive in its visual effect. In order to facilitate contact between multiple fingers, …
Published in Recent Trends in Electronics Communication Systems · Vol. 10, Issue 3, 2023 · pp. 15–22 Read article
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Turbulence Modelling for Estimation of Hydraulic Jump Height
Abstract: AbstractThe simulation plays an important role in understanding the behavior of the flow field that becomes difficult through experimental analysis. The present work focuses on the experimental studies carried out for different discharges ranging from 9.8 lps to 12.5 lps. The gate openings adopted for the study are 0.025 m at a slope of 1:1200 and 0.023 m at a slope of 1:857 and 1:705.8. The simulations were extended to …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 3, 2018 · pp. 8–18 Read article
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Experimentation and two-dimensional fluid flow simulation through external gear pump
Abstract: The investigation aims to perform the experimentation on the existing set up of the gear pump test rig and its simulation. In the first part of study, the different parameters are set and observed. Using these values calculations are performed to get the other experimental results. In the second part, two-dimensional fluid flow simulation was done flowing through the external gear pump and compares its flow rate and thus efficiency …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 3, 2020 · pp. 15–23 Read article