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1935 articles for “VAR” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Speaker Segmentation Using Non Linear Energy Operator Based Variance Spectral Flux
Abstract: AbstractSpeaker segmentation is considered to be a process that attempts to find speaker segment boundaries in a given audio stream. It can be used in various applications of speaker diarization, speaker indexing, word count etc. Classification of speech and non-speech can be obtained by traditional method of variance spectral flux (VSF). In this paper, we investigate the new techniques to perform the speaker segmentation task for multiple speakers in one …
Published in Current Trends in Signal Processing · Vol. 7, Issue 3, 2017 · pp. 1–6 Read article
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Modeling the Variation in Specific Heat of Phase Change Materials during Phase Transition
Abstract: Specific heat of phase change materials varies significantly during phase transition. Accurate knowledge of variation in specific heat is vital for proper numerical simulation of heat transfer in such materials. Specific heat of phase change material (PCM) during phase transition has been modeled as delta, triangular and Gaussian function by researchers. In the present work, variation of specific heat is presented in the form of Fourier series. Fourier coefficients are …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 2, 2016 · pp. 28–33 Read article
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Analysis of the Effect of Load Variation on Grid-Connected Three-phase Asynchronous Motor
Abstract: AbstractThis paper based on the MATLAB/SIMULINK Analysis of the variation of torque-speed characteristics of three-phase induction motor with the variation of load (p.u). The entitled paper also shows the comparative study of three-phase induction motor with the help of MATLAB/SIMULINK diagram. The paper presents the use of passive filter in place of another type of filter this gives the various result shown in the result.Keywords:Passive filter, load torque, motor, torque, …
Published in Journal of Instrumentation Technology & Innovations · Vol. 9, Issue 2, 2019 · pp. 24–40 Read article
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Photovoltaic Solar Farms Operating in VAR Mode: A Review
Abstract: The PV solar inverter plays a vital role in solar farms for electrical power generation at distribution end. By generating active power, such at lower distributed end results like voltage rise issues and voltage fluctuations which affect power quality standards. Increasing penetration level of distributed generation sources connected to the power system cause increasing reverse power flow when demand is not adequate, which raises the voltage level at point of …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 73–85 Read article
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Study of Scaling of MOSFET on Various Electrical Characteristics using Silvaco TCAD Tool
Abstract: MOSFETs are the driving work horse of semiconductor industry. Over the years, the MOSFET device density has been continuously increasing owing to the reduction in channel length of MOSFET device. This article discusses the effect of scaling i.e. channel length and gate oxide thickness on various parameters like threshold voltage, transconductance, maximum drain current and subthreshold slope. It is important to consider that with scaling of the channel length; the …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 1, 2018 · pp. 11–19 Read article
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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 3, 2017 · pp. 13–20 Read article
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GDI Logic Implementation of Variable Sized CSLA Architectures Using 45 nm SOI Technology
Abstract: Carry select adder (CSLA) is an efficient adder used in modern processors. But, the CMOS logic implementation at the transistor level makes it complex. The use of smaller transistor size has shrunk the overall design but the transistor count was retained. Hence, in this paper the transistor level implementation of variable sized CSLA architecture is done using gate diffusion input (GDI) logic. This implementation drastically simplifies the CSLA in terms …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 78–88 Read article
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Studies on Effect of Various Curing Methods in Glass Fibre Reinforced Geopolymer Concrete with 12 Molarity Alkaline Solutions
Abstract: Due to the increasing environmental impacts associated with ordinary Portland cement, need to develop alternative binders to make concrete, is steadily increasing. Geopolymer concrete is the result of the reaction of materials containing Alumino-silicate with concentrated alkaline solution to produce an inorganic polymer binder. Alkaline solutions used were Sodium Hydroxide and Sodium Silicate. This paper presents results of an experimental study on the compressive strength, flexural strength and split tensile …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 1–7 Read article
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Analysis of Doubly Fed Induction Generator with Effect of Various Design Parameters
Abstract: Increasing demand for electricity requires developing new generation techniques which fulfil the demand and keep the environment clean. As per the survey, in the category of renewable energy, wind power plants play an important role in the power generation. In the wind energy generation system, a doubly fed induction generator (DFIG) is more popular. In this paper, the performance of DFIG investigated with different design parameters. Study the effect of …
Published in Trends in Electrical Engineering · Vol. 8, Issue 2, 2018 · pp. 10–18 Read article
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Effects of Variation of Injection Current and Differential Gain on 450 nm InGaN True Blue Semiconductor Laser
Abstract: AbstractIn this work, the performance analysis of a designed 450 nm InGaN True Blue Semiconductor Laser has been presented by varying injection current and differential gain. The study has been divided into three major segments; the first of which deals with changes in carrier density, photon density and output power with variation of injection current. A maximum output power of 182.6 mW is obtained for 90 mA injection current and …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 1, 2013 · pp. 18–23 Read article
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A Survey on Various Security Attacks in Mobile Ad-Hoc Network
Abstract: AbstractMobile ad-hoc network is infrastructure-less network and there is no central authority to govern its functioning. Mobile nodes are connected with each other via wireless link and communicate with one other with the aid of intermediate nodes that come in their transmission range. Mobile nodes are keys to this network and hence are capable of moving free throughout the network; this property makes MANET to be attacked by various types …
Published in Journal of Computer Technology & Applications · Vol. 6, Issue 3, 2015 · pp. 17–30 Read article
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Analysis of Natural Pigments and its Application on Various Fields towards the Eco-Friendly Environment
Abstract: The pigments that are found naturally in the environment are most likely to be said as "earth colour" or "earth pigment". The traditional pigments are observed to have all the substances that are available on the natural environment and are of more economic values. The pigments as a natural dye are observed to be safe, highly efficient and eco- friendly. These organic colorants are observed to contain oxygen, carbon with …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 9–19 Read article
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Various Techniques of Sentiment Analysis on Twitter Data Set: A Survey
Abstract: AbstractSentiment analysis is the process of computationally identifying and categorizing opinions expressed in a piece of text, especially in order to determine whether the writer's attitude towards a particular topic, product, etc. is positive, negative, or neutral. Sentiment analysis could be a variety of data processing that measures the inclination of people’s opinions through natural language processing (NLP), linguistics and text analysis, that square measure want to extract and analyze …
Published in Journal of Advanced Database Management & Systems · Vol. 4, Issue 2, 2017 · pp. 27–32 Read article
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Overview of Deep Learning: Applications in Various Areas
Abstract: Deep learning is emerging field in the sense of artificial intelligence. Deep-learning innovation powers numerous parts of current society: from web quests to content sifting on interpersonal organizations to proposals on web-based business sites, and it is progressively present in shopper items, for example, cameras and cell phones. Deep learning offers effective procedures to discover designs in information for taking care of testing prescient issues. Deep learning is widely used …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 5, Issue 3, 2018 · pp. 39–48 Read article
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Relationship between Consumer Online Search Behaviour & Their Online Buying Intention having Income as Moderating Variable
Abstract: This research work aims to study the relationship between consumer online search behaviour on e-tail websites and their online buying intention from such websites. This relationship is also studied in presence of income as moderating variable. Research is based upon primary survey of 500 respondents of Madhya Pradesh. For the purpose of analysis percentage analysis, correlation analysis and regression analysis were used. It was found that there is a relationship …
Published in E-Commerce for Future & Trends · Vol. 5, Issue 2, 2018 · pp. 17–22 Read article
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A Review on Various Image and Video Restoration Techniques
Abstract: Reconstruction of low value deteriorated image into high quality improved image is termed as image restoration. The sight of this paper is to have knowledge about mixed restoration techniques like, average filter, median filter, wiener filter, blind de-convolution, and wavelet transform etc. The basis of restoration is to undo the operation of degraded image. There are many grounds because of which degradation takes place like, poor weather conditions, camera misfocus, …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 3, Issue 2, 2016 · pp. 50–58 Read article
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Analysis of Flow through Main Engine Control Unit (MECU) of a New Aircraft Fuel Control System under Various Aircraft Acceleration
Abstract: A fuel control system is being designed and developed for a new aero engine of afighter aircraft. But existing facility doesn’t support the full operational testing of theindividual components of aircraft fuel control system under various aircraft accelerationconditions.In this paper theoretical analysis has been done to check the flow distribution ofone of the basic systems i.e. Main Engine Control Unit (MECU) under various aircraftaccelerations. It has been observed that, in …
Published in Recent Trends in Fluid Mechanics · Vol. 1, Issue 2, 2014 · pp. 1–12 Read article
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Numerical Investigations of Fluid Flow and Heat Transfer in a Ribbed Heated Duct with Variable Aspect Ratios
Abstract: The present investigation has been carried out to investigate the steady-state forced convection heat transfer and pressure drop characteristics of turbulent flow in an air cooled horizontal duct. The aspect ratio (W/H, where W is width and H is the height of the duct) is varied in the range of 1 to 4. Square ribs are fixed on the inner side of the bottom wall which is heated with constant …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 1, 2016 · pp. 27–37 Read article
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CFD Approach for Analyzing the Variation of Flow Parameters and Losses in a Mixed Flow Francis Turbine
Abstract: Francis turbine can be used for a wide range of head and discharge, thus it is the most versatile water turbine in use [1]. As load varies from full load; the regime of operation changes for meeting the required power demand on electric system [2]. Efficiency of Francis turbine drops significantly at part load and overloading operations due to increased shock losses at the entry to runner, eddy formation and …
Published in Journal of Experimental & Applied Mechanics · Vol. 7, Issue 2, 2016 · pp. 54–65 Read article
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A Comparative Study on the Expression of Various Housekeeping Genes in the Organs of Different Mice Strains
Abstract: The expression of housekeeping genes significantly varies between organs and between strains. Therefore, it is highly required to find out the housekeeping gene that can be the most useful and reliable one, where inter-organ comparative studies on gene expression need to be performed. Keeping this issue in consideration, a comparative study of different housekeeping genes using organs of four different strains of mice was performed. Different organs, i.e., liver, kidney, …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 5, Issue 3, 2015 · pp. 1–10 Read article