Search
1935 articles for “VAR” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
-
Estimation of Reliability and various parameters of a Radial Electrical Distribution System: An Innovative Safety Approach
Abstract: Reliability assessment of an engineering system or systems or component or element is very important in order to forecast its availability or unavailability and other important indices related to the component or system as a whole. Reliability is the floating which tells about the availability or unavailability of the component under proper working conditions for a given period of time. A lot many research papers have been reported for reliability …
Published in Journal of Industrial Safety Engineering · Vol. 8, Issue 2, 2021 · pp. 14–19 Read article
-
Various Navigation and Control System Design Aspects for Mobile Robots
Abstract: An appropriate control systems design for robots is essential for their safe operation. Many researchers have explored various control systems, including linear, nonlinear, adaptive, robust, and optimal controllers, etc. for variousrobotic operations. In recent era, many of the under-graduate and post-graduate degrees have had courses on robotic control. In the last decades, many of universities have included educational robots in their curriculum covering the kinematics, dynamics, control, guidance, and navigational …
Published in Journal of Mechatronics and Automation · Vol. 10, Issue 2, 2023 · pp. 29–33 Read article
-
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
-
A Review on Sisal Fiber Reinforced Composite Materials and Effects of Various Factors on its Mechanical Properties
Abstract: AbstractIn the modern world of science and technology, there is current rising trend towards the augmentation of mechanical properties of composites by introducing different materials in many flexible ways to overcome the newly resurgent demands, especially in engineering practices. Many natural fibers like jute, sisal, bamboo, bagasse, hemp and banana find their application as a reinforcing component in composite materials due to their light weight, low cost, low density, biodegradability, …
Published in Journal of Polymer & Composites · Vol. 5, Issue 1, 2017 · pp. 25–28 Read article
-
Investigation of Jute Mat with Waste Fish Net by Varying Matrices in Hybrid Composites
Abstract: AbstractIn this study the low cost material of multi filament waste fish net and jute fibres were incorporated as the main reinforcing materials with epoxy resin and polyester resin as the matrix in order to increase the strength of the hybrid composites. The samples were fabricated using hand layup technique. The nylon fibre of waste fish net possesses high impact strength, elasticity property and highly resistant to abrasion of chemicals …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 27–34 Read article
-
A New Approach for Modeling the Dynamics of Output Variables of a Spatially Distributed System
Abstract: This paper addresses the development of an average-value based model for the processing system having some peculiar physical constraints which prevent their process variables to have a steady and stable value. As a result, the maintenance of steady balance of the system will become tedious. The continuous observation of that process variable, fixation of its average value on real-time basis, and mathematical model development of above-average value as base factor …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 2, 2012 · pp. 20–33 Read article
-
Frequency Characteristics and Transient Response of Transmission Lines with Longitudinally Varying Ambient Temperature
Abstract: This paper addresses the steady state, the frequency characteristics and the transient response ofpower lines in the presence of longitudinally varying ambient temperature. This variation willlead to location-dependent line circuit parameters and to a changing equivalent circuit. Thederived models, which are based on the exact long line theory, can incorporate the impact of thedifferent patterns of the temperature distribution in terms of location and magnitude. Severalcase studies of the resulting …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 3, 2019 · pp. 19–30 Read article
-
Seismic Response of Braced RC Elevated Water Tanks for Various Seismic Zones
Abstract: In this paper, a reinforced concrete elevated water tank with a capacity of 500 cubic meters and h/d ratio=0.7 is considered, the present study investigate the performance of elevated water tank using dynamic analysis, i.e., Response Spectrum method. The modeling of elevated water tank is carried out by using finite element base software STAAD.Pro. Total twelve number of model were made for empty tank, half tank and full tank condition, …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 1, 2017 · pp. 43–64 Read article
-
A Study on Various Approaches in Remote Sensing
Abstract: AbstractThis paper studies the various approaches used in the remote sensing. The importance of Remote Sensing is that to learn to extract valuable information from it. The traditional approach has been to analyse RS images and then construct information-extraction models, these approaches are able to construct spectral, textural and geometric attributes of images. The various approaches using machine language, deep learning, Zigbee platform and microwave sensing is discussed here.Keywords: RS …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 2, 2020 · pp. 32–37 Read article
-
A Low Power Variable Gain Amplifier for Biomedical Application
Abstract: This paper describes the design and simulation of low power variable gain amplifier used for biomedical application like hearing aid, Electronic Cardiograph and neural recording system. The MOS transistor is designed to operate in subthreshold region for low power application. The gain of amplifier is changed by selecting different values of input capacitor in the frequency range of 20 Hz–20 KHz. The simulated total power dissipation is 3µW. The gain …
Published in Journal of VLSI Design Tools and Technology · Vol. 4, Issue 3, 2014 · pp. 7–12 Read article
-
Effect of Various Parameters on Threshold Voltage of Virtually Fabricated Lightly Doped PMOS Device
Abstract: This paper emphasis on the design, fabrication and analysis of 45 nm P type MOSFET device using SILVACO TCAD tool. The analysis was based on variation of various parameters like oxide thickness, threshold implant and halo implant (pockets) to analyze the threshold voltage. The drain versus gate and drain versus gate plots are being plotted using tony-plot. It has been observed that as the thickness of the oxide increases, threshold …
Published in Journal of VLSI Design Tools and Technology · Vol. 7, Issue 2, 2017 · pp. 13–20 Read article
-
Simulation and Analysis of Grid Integrated Solar PV System under Variable Climatic Conditions
Abstract: Infusing photovoltaic power into the utility network has earned expansive affirmation in nowadays of reasonable force source age and scattering. Lattice associated inverters have propelled inside and out with high-various assortment. Effectiveness, size, weight, steadfastness, etc have all improved in a general sense with the improvement of present and imaginative inverter arrangements and these factors have influenced the expense of delivering inverters. This paper shows a composing overview of the …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 2, 2020 · pp. 26–33 Read article
-
Impact of Solar Variability on the Heliosphere and Cosmic Rays Modulation with Geomagnetic Activity
Abstract: AbstractThe structure of the heliosphere and produce changes in cosmic ray intensity controls by solar variability. the observation based on data taken from Omniweb data center for solar interplanetary data and count rate of cosmic ray intensity (CRI) variation data from Oulu / Moscow neutron monitors (with cutoff rigidities Rc=0.80 GV and Rc=2.42 GV) during 1996-2018. It is observed that the sun is remarkably quiet and the strength of the …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 1, 2020 · pp. 32–35 Read article
-
Process Variable Optimization and Experimental Review of Aero-engine Blade using ECM
Abstract: AbstractProcess of blade in (EMC) can be effected by numerous factors, e.g., shape of blade, electrolytic liquid field and anodic dissolution, ECM parameters may result in affections on blade accuracy. Some aero-engine blade as research object, five main process parameters, voltage, machining gap, feed rate, temperature of working fluid and pressure variation of electrolyte inlet/outlet, are evaluated and optimized as per BP neural network Method. From 3125 possible operating parameter …
Published in Recent Trends in Sensor Research & Technology · Vol. 5, Issue 3, 2018 · pp. 27–32 Read article
-
Analysis of 2-Stage Inverter Delay Line with Supply Voltage Variation
Abstract: Nowadays, the performance parameters should not affect the variation in fixed parameters like leakage current, leakage power, propagation delay, and power delay product. So this study is basically focused on the effects of changes in supply voltage (0.8–1.2V) on the various performance parameters of 2-stage inverter based delay line based on CMOS architecture. A delay line is a discrete element in digital theory, which simply allows a signal to be …
Published in Trends in Electrical Engineering · Vol. 9, Issue 1, 2019 · pp. 31–35 Read article
-
Analysis of Output Behavior of PEMFC by Varying Flow Rates (Air Flow Rate and Fuel Flow Rate)
Abstract: As the demand for electricity is increasing rapidly and our traditional fuel sources are coming to an end in terms of reserve, shifting towards green energy is becoming more and more convenient. Fuel Cells are sources of higher efficiency than any other green energy sources. As recent research trend fuel cell are going under various types of research for optimization purposes. In this research study, the behavior of PEMFC (Proton …
Published in Trends in Electrical Engineering · Vol. 5, Issue 2, 2015 · pp. 14–21 Read article
-
Transient Stability Analysis of Power Systems with Static VAR Compensator: A Modeling Perspective
Abstract: Flexible AC Transmission Systems (FACTS) controllers have emerged as a vital tool to overcome the compensation challenges offered by modern power systems. Static Var Compensator (SVC), a type of FACTS controller plays a very important role in enhancing the power system performance, reactive power factor, maintain voltage stability. A thorough review and implementation of SVC with its various configurations is presented in this paper. Performance analyses of SVC and associated …
Published in Trends in Electrical Engineering · Vol. 13, Issue 3, 2023 · pp. 33–47 Read article
-
Analysis of Modulation Response of a 450 nm True Blue Semiconductor Laser by Varying Differential Gain
Abstract: AbstractIn this work the analysis of modulation response of a 450 nm InGaN based multi-quantum well (MQW) true blue semiconductor laser have been presented. The internal designing of 450 nm blue laser has been done before. but the desired wavelength of 450 nm was obtained by adjusting the exact concentration of In0.211Ga0.789N/Al0.07Ga0.93N in this work. The effects on modulation response by varying the differential gain have been observed. Also, the …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 1, 2015 · pp. 1–8 Read article
-
A Comprehensive Logical Model of Bus Terminal Planning Standards in India
Abstract: In India, presently, there are no guidelines available for bus terminal planning standards based on varied passenger characteristics. Since human comfort is a primary design consideration in architectural design planning, design standards for passengers must be based on a relative scale to provide the desired design environment anthropometrically. The requirement for this research is to help resolve the problems faced by planners and architects due to lack of comprehensive design …
Published in Trends in Transport Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 49–61 Read article
-
Assessment of various Biometric Techniques
Abstract: In this day and age, information security is a noteworthy issue; there are various strategies to anchor information or forestall unapproved get to biometrics is a quickly developing innovation that is as a rule generally utilized in forensics, security; avoid unapproved access in bank or ATMs. There are various types of biometrics currently being incorporated with innovation stages. As biometric innovation develops there will be an expanding cooperation among the …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 18–33 Read article