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1945 articles for “distributions” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Power Quality Enhancement in Distribution System using D-STATCOM
Abstract: New solutions based on power electronics have been developed to safeguard commercial and industrial clients against power quality issues on the electrical distribution system, referred to as Custom Power Products. Custom power devices are classified into three categories by their structures such as dynamic voltage regulator (DVR), distribution static compensator (STATCOM) and unified power quality compensator (UPQC).The Distribution Static Compensator (D-STATCOM), one of the custom power product, is a shunt-connected …
Published in Recent Trends in Electronics Communication Systems · Vol. 8, Issue 2, 2021 · pp. 17–22 Read article
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Application of Nondominated Sorting Genetic Algorithm for Multiobjective Optimal Design of Distribution Transformer
Abstract: AbstractIn today’s competitive environment, transformer manufacturers are faced with the exigent task of yielding optimum performance at lowest cost. Considering the aspect of energy shortage and increase in its cost, the complexity of achieving the optimal balance between transformer manufacturing costs and transformer performance is a herculean task, demanding great amount of attempts to reach satisfactory results. To cater with the problem of minimizing transformer losses and cost simultaneously, this …
Published in Trends in Electrical Engineering · Vol. 6, Issue 3, 2016 · pp. 44–57 Read article
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A Survey on Microgrid Power Control and Management Technique for Distributed Power Generator Units
Abstract: The micro grid could consist of several configurations of renewable and non-renewable energy sources like solar photo-voltaic cell (PV) array that varies with the utility because of the fluctuations in primary power generation unit. Such integration of renewable energy reserves within the micro grid may well be accustomed in order to supplement the gap caused by variability in the power generation. The control and power management methods for the distributed …
Published in Trends in Electrical Engineering · Vol. 7, Issue 2, 2017 · pp. 47–55 Read article
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A Review on STATCOM Controller for Power Quality Enhancement in Distributed System
Abstract: New technologies, using power Electronics-based concepts, have been Developed to provide protection for Commercial and industrial customers from Power quality problems on the electrical Distribution system known as Custom Power Products. Custom power devices are classified into three categories by their structures such as dynamic voltage regulator (DVR), distribution static compensator (STATCOM) and unified power quality compensator (UPQC).The Distribution Static Compensator (D-STATCOM), one of the custom power product, is a …
Published in Trends in Electrical Engineering · Vol. 11, Issue 2, 2021 · pp. 24–29 Read article
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Determination of Quick Switching Double Sampling System by Attributes under Fuzzy Poisson Distribution: Acceptance Number Tightening
Abstract: AbstractAcceptance sampling plans are used to accept or reject the lots based on the inspection of samples. A mixture of acceptance sampling plans with switching rules for changing from one plan to another are called acceptance sampling schemes. The simple and most generally used sampling scheme is quick switching system (QSS-1). Quick switching system with reference to single sampling plan is a system which requires fewer samples for processes running …
Published in Current Trends in Information Technology · Vol. 7, Issue 3, 2017 · pp. 17–23 Read article
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Computation of Electromagnetic Energy Flux Due to various Distributions of Oscillating Electric Dipoles
Abstract: AbstractThe authors have discussed about the effects of cell phone radiations, its applications along with its adverse effects. In this work we have computed the energy flux received at some specified point (say the human head) due to some simple distributions of dipoles by computing the relevant electric, magnetic fields and finally the Poynting vector. We have shown that although for a symmetric distribution of emitters the energy flux vanishes …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 3, 2013 · pp. 17–25 Read article
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Distribution of Hemoglobin Concentration among the School Students of Rural Area of Kaski District, Nepal
Abstract: Hemoglobin is an oxygen carrying tetrameric hemeprotein found in erythrocytes where, it is responsible for binding oxygen in the lung and transporting the bound oxygen throughout the body. Its deficiency in our body causes decrease supply of oxygen that leads to various severe complications even up to death. Low Hb concentration is the common problem in the school students in developing countries. This study therefore sought to evaluate the frequency …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 2, Issue 3, 2013 · pp. 1–5 Read article
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Intercomparison of Rainfall Estimates of Probability Distributions for Developing the Intensity-Duration-Frequency Curves
Abstract: Determination of short duration rainfall through the developed Intensity-Duration-Frequency (IDF) curve is of utmost importance for planning, design, operation and management of civil and hydraulic structures. For which, extreme value analysis (EVA) of rainfall that consists of fitting probability distributions such as Normal, Log Normal (LN2), Pearson Type-3, Log Pearson Type-3, Extreme Value Type-1 (EV1) and Generalized Extreme Value (GEV) to the annual 1-day maximum rainfall series is carried out. …
Published in Journal of Water Resource Engineering and Management · Vol. 9, Issue 3, 2022 · pp. 39–53 Read article
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Distributed Data Mining Cloud Based System
Abstract: When traditional data mining systems are used for cloud computing, there are performance bottlenecks and scalability difficulties. In this study, it states that a data mining platform is directly based on the cloud computing. As compared with the traditional data mining systems, the platform is highly scalable, with massive data processing capabilities, service-oriented and low hardware costs. The platform can support the design and application of various distributed data mining …
Published in Journal of Operating Systems Development & Trends · Vol. 5, Issue 3, 2018 · pp. 10–14 Read article
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Influence of Process Parameters on Temperature Distribution and Microstructure of Friction Stir Welded Magnesium Alloy
Abstract: Abstract The effect of processing parameters on temperature distribution and microstructure was evaluated after friction stir welding of AZ31 magnesium alloy plates. Temperature distributions were recorded using thermocouples inserted into the drilled holes. Microstructures of the specimens were evaluated using optical microscopy and grain size and other factors were measured. Microhardness results were evaluated using Vicker’s micro hardness tester. Microstructure results revealed that grain size was reduced and grain structure …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 27–33 Read article
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A Stress Distribution Model along the Tooth Mating Surface of a Non-Metallic Spur Gear using the Hertz's
Abstract: A low cost cement reinforced polymeric composite material is designed and developed for fabrication of non-metallic automotive components such as gear. 10 wt% cement fillers are mixed up with pure polypropylene and injection-molding process is followed to fabricate the composite gear. Several experiments have been conducted to study the composite gear failure mechanism and resulting stress distribution along the tooth contact surface. For this, experimental data are used and Hertzian …
Published in Trends in Machine design · Vol. 1, Issue 3, 2014 · pp. 50–58 Read article
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Effect of Distributor Angle Variation on Flow Characteristics in a Hollow Frustum: A Numerical Study
Abstract: The key factor in determining the flow characteristics of a fluidized bed is the outlet vane angle of the distributor. It helps to predict the flow type, bed thickness and hence helps to obtain the required characteristics by selecting an appropriate angle. This study provides a detailed report about the analysis of important flow characteristics such as velocity, pressure, curl velocity, velocity swirl normal and turbulence with respect to different …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 3, 2015 · pp. 10–15 Read article
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A Study of the Rainfall Drop-Size Distribution at Umiam using Thies Clima Laser Precipitation Monitor from May to October, 2017
Abstract: Rainfall monitoring has been going on at NESAC, Umiam from February 2016 onwards under the ISRO-ONERA-CNES joint Ka-Band Propagation Experiment. SAC, Ahmedabad has provided NESAC with a Laser Precipitation Monitor to replace its old impact type Disdrometer which is not working anymore. After its installation at NESAC in May 2017, it is giving continuous data. With the LPM data, a drop size distribution study has been done for the tropical …
Published in Journal of Remote Sensing & GIS · Vol. 9, Issue 2, 2018 · pp. 47–59 Read article
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Extended Distribution of Passiflora alata Curtis (Passifloraceae) in India
Abstract: AbstractA Brazil species Passiflora alata Curtis (Passifloraceae), an evergreen vine and a native of Peru, is cultivated for its fresh fruit and juice markets on commercial scale. So far it is known to occur only in Gudalur taluk of Nilgiris, Tamil Nadu and Marathwada in Aurangabad in India. Occurrences in Yercaud Hills in the Salem district of Eastern Ghats of Tamil Nadu form an additional/extended distribution in India.Keywords: Passiflora alata, …
Published in Research & Reviews : Journal of Botany · Vol. 5, Issue 1, 2016 · pp. 13–15 Read article
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Absorption Spectra Calculation and Charge Distribution Analysis of para-azoxyanisole: A Semiempirical Study
Abstract: AbstractSemiempirical study of electronic structure of para-azoxyanisole (PAA) has been carried out. In order to obtain more information on the reactivity of PAA molecule towards nucleophile and electrophile, semiempirical (CNDO/S, and INDO/S) based calculations have been performed to evaluate the negative and positive charge distribution. Further, CNDO/S + CI and INDO/S + CI methods have been employed to calculate and analyze the absorbance spectral measurements in UV-visible range, and charge …
Published in Research & Reviews : Journal of Physics · Vol. 6, Issue 1, 2017 · pp. 5–11 Read article
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Marshall-Olkin Exponential Power Distribution and Applications
Abstract: We introduce a new distribution namely Marshall-Olkin Exponential Power Distribution and its properties were studied. The problem of estimation of parameters was considered and validated with respect to a real data on failure times. The stress-strength reliability analysis was also carried out. Average mean square error, Average confidence length, Coverage probability etc. were computed using simulated data. Using the proposed model we developed autoregressive processes with minification structure. Keywords: Marshall-Olkin …
Published in Research & Reviews : Journal of Statistics · Vol. 6, Issue 3, 2017 · pp. 22–33 Read article
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Model Based Clustering using Finite Mixture Models of Lognormal Distribution
Abstract: AbstractModel-based clustering consists of fitting a mixture model to data and identifying cluster with its components. This study discusses model-based clustering using a finite mixture of a univariate lognormal distribution with k components. In this study, lognormal mixture models for skewed data and also the estimation of mixing proportion by distance-based clustering have been considered. Parameter estimation is carried out by expectation maximization (EM) algorithm using different initialization approach using …
Published in Research & Reviews : Journal of Statistics · Vol. 7, Issue 3, 2018 · pp. 58–67 Read article
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Estimation of Reliability for a Two Parameter Inverse Chen Distribution
Abstract: The problem of estimation of reliability, when and are two independent random variables follow inverse Chen distribution, is considered in the paper. Maximum likelihood estimators of under simple random sampling and ranked set sampling are obtained. Also, Bayesian estimation using Lindley's approximation technique is proposed to draw inference about . Reliability estimators are compared using mean squared error criteria and real data analysis is carried out for illustration purpose. Keywords: …
Published in Research & Reviews : Journal of Statistics · Vol. 8, Issue 1, 2019 · pp. 17–25 Read article
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Comparison of Powers for Testing Parameters of Two Negative-Exponential Distributions
Abstract: In this paper we make comparative study of testing the hypothesis of two independently distributed negative-exponential distributions after deriving the conditional distribution of complete sufficient statistic of interest, by fixing the sum of the transformed variable. We use it in testing the equality of both the parameters. Further the power function of the asymptotic test has been obtained for some points. Also the testing of equality of parameters has been …
Published in Research & Reviews : Journal of Statistics · Vol. 8, Issue 3, 2019 · pp. 60–63 Read article
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An Exact Kolmogorov–Smirnov Test for the Negative Binomial Distribution with Unknown Probability of Success
Abstract: AbstractIn this paper, we develop an exact Kolmogorov–Smirnov goodness-of-fit test in the case of negative binomial distribution with an unknown probability of success. This test is conditional, with the test statistic being the maximum absolute difference between the empirical distribution function and its conditional expectation given the sample total. The results are not asymptotic, but exact. We illustrate the test with three examples in case the size parameter equals one …
Published in Research & Reviews : Journal of Statistics · Vol. 2, Issue 1, 2013 · pp. 1–13 Read article