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47 results for “Electric Field”

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Research ArticleOpen accessPhrase in the titleElectric Field in Polymeric Isolators of the 500kV Voltage ClassVitor Chaves De Oliveira, Huederson Aparecido Botura Da Silva, Alexandre De Assis Mota, Lia Toledo Moreira MotaThis study presents a detailed study of the electric field in polymeric isolators of the 500kV voltage class through modifications in the dimensions of the anti-corona ring. That is, by varying the three dimensions of the anti-corona ring: height (h), distance of the anti-corona ring conductor (r) and the diameter of the anti-corona ring conductor (d); it was possible to … …American Journal of Applied Sciences, Vol. 10, Issue 6 · 12 Jun 2013 · 6,969 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleThe Horizontal Electric Field Induced by a Lightning Return StrokeScott L. Meredith, Susan K. Earles, Niescja E. TurnerProblem statement: Develop a new formula which describes the horizontal electric field induced by a lightning return stroke in contact with an imperfect conductive surface. Approach: A new method for describing the horizontal electric field induced by a lightning return stroke will be presented. The method presented here had utilized an approach which purposely downplayed the physics of how image … …Journal of Mathematics and Statistics, Vol. 6, Issue 3 · 30 Sep 2010 · 7,416 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleA Method for Transmitting Spacecrafts in Space with Velocity of at Least 0.01 of the Light Speed Using Materials with Very High Kinetic Energy in High Electric FieldsMario Nady AiadMany space new missions are on calendar this decade for Moon, Mars and other planets. Some of these missions are depending on simple reliable chemical thrusters and others on the nonchemical advanced propulsion techniques. In most of nonchemical techniques a nuclear source of energy is necessary as in nuclear electric rockets where the maximum velocity produced is around 20 km/s. … …American Journal of Engineering and Applied Sciences, Vol. 16, Issue 4 · 22 Dec 2023 · 5,365 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleA New High Order Algorithm with Low Computational Complexity for Electric Field SimulationMohammad Khatim Hasan, Jumat Sulaiman, Samsul Arifin Abdul KarimProblem statement: This research reported on new approach to improve speed of simulation time for free space electric wave propagation from an antenna. The existing method, Finite-Difference Time-Domain (FDTD) have been proven to solve the problem accurately, however, one of the drawbacks of the method was it needs a long processing time to simulate problem. Research efforts to increase the … …Journal of Computer Science, Vol. 6, Issue 7 · 31 Jul 2010 · 6,394 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPhysical Reasons and Mitigation Strategies for Increased Lightnings in BangladeshMiah Muhammad AdelBangladesh lightning victims’ data spanning from 2007 to 2020 were analyzed to relate victims’ activities to lightning strikes under the current upstream water piracy-set heating whence to suggest some mitigation measures. The victims’ data from the online Bangladesh news media bd news 24.com were categorized in columns of places, times of occurrences, engagements of the victims, the numbers of the … …American Journal of Environmental Sciences, Vol. 18, Issue 1 · 28 Jan 2022 · 6,779 accessesView PDFCite
Research ArticleOpen accessIn the keywordsModern Propulsions for Aerospace-Part IIRelly Victoria Virgil Petrescu, Raffaella Aversa, Bilal Akash et al.Speaking about a new engine ionic means to speak about a new aircraft. The paper presents in a short time the actual engines ion chambers (called the ion thrusters) and other new ionic motors proposed by the authors. The engine (ionic propulsion unit of ions, that accelerates the positive ions through a potential difference) is approximately ten times more efficient … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 1 · 25 Apr 2017 · 8,118 accessesView PDFCite
Research ArticleOpen accessIn the keywordsParticle Swarm and Neural Network Approach for Fault Clearing of Multilevel InvertersR. M.S. Parvathi, M. SivakumarThis study presents a machine learning technique for fault diagnostics in induction motor drives. A normal model and an extensive range of faulted models for the inverter-motor combination were developed and implemented using a generic commercial simulation tool to generate voltages and current signals at a broad range of operating points selected by a Particle Swarm Optimization (PSO) based machine … …American Journal of Applied Sciences, Vol. 10, Issue 6 · 8 Jun 2013 · 6,486 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPhysics Models of Pronuclear Movements in EggsKang Cheng, Changhua ZouBased on published experimental data, Newton's laws, and Coulomb's law, we investigate natural and normal pronuclear movements in wild types of eggs and develop physics models to fit the experimental data quantitatively. The difference between our modeling calculated results and the experimental data is less than 20%. Our models explain why and how pronuclei move in even or in variant … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,743 accessesView PDFCite
Research ArticleOpen accessIn the keywordsChange in Temperature of Skin, Blood, Muscle and Bone Tissues Due to Mobile Phone Radiations at Frequencies 800, 900, 1800 and 2450 MHzMushtaq Ahmed Bhat, Vijay KumarThe mathematical calculation of change in temperature of skin, blood, muscle and bone tissues of human being working at the frequency of 800, 900, 1800 and 2450 MHz is done in this manuscript. The power of the antenna of mobile phone is of 2 W. The calculation is made at the various depths, by taking the different distances of human … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 3 · 21 Jun 2015 · 7,353 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFuzzy Logic Controller for Static Synchronous Series Compensator with Energy Storage System for Transient Stability AnalysisSona Padma, M. RajaramProblem statement: FACTS devices play a major role in the efficient operation of the complex power system. FACTS devices such as STATCOM, SSSC and IPFC are in increasing usage. With energy storage systems they have a good control over the real as well as reactive power compensation and transient stability improvement. The design of controller for the SSSC with SMES … …Journal of Computer Science, Vol. 7, Issue 6 · 14 Jun 2011 · 6,694 accessesView PDFCite