Now showing items 30-49 of 115
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Double-series resonant inverter-fed voltage multiplier based high-voltage DC-DC converter
(Taylor and Francis Group, LLC., 2013-11)This article presents a novel series resonant inverter-fed high-voltage DC-DC converter. The proposed converter consists of two resonant tanks that are energized by a half-bridge inverter. Two high-voltage transformers are ... -
A dual-band array antenna using dome-shaped radiating patches
(Wiley Periodicals, 2013-11)A novel design of a dual-band array antenna for Wireless Local Area Network and Worldwide Interoperability for Microwave Access applications is presented in this article. The antenna operates at 3.5 dBi (the lower band) ... -
Dual-band, parabolic, slotted ground plane-directive antenna for WLAN applications
(Taylor & Francis, 2013)Wireless local area network (WLAN) is one of the common terms used by researchers in the communications area that allows wireless, long-range communication. Antennas are used as a medium of transmission, and in recent WLAN ... -
An earth fault location scheme for isolated and compensated neutral distribution systems
(Praise Worthy Prize S.r.l., 2013-10)This paper proposes a scheme to locate an earth fault in an unearthed or a compensated neutral medium voltage (MV) network using the transient signal recorded from MV/LV substations. The algorithm applies continuous wavelet ... -
Effect different limb of transformer core assemble on performance
(Trans Tech Publications, 2014)This paper described the performance of transformer affected by different limb assembling. The experiment that used to investigate core is no-load, short circuit and load test to find the core loss, copper loss, flux leakage ... -
Effect of lattice constant on band-gap energy and optimization and stabilization of high-temperature In xGa 1 -xN quantum-dot lasers
(Springer US, 2012-07)We analyze the effect of the lattice constant on the band-gap energy of In x Ga1−x N and optimize the structure of the device with a separate-confinement heterostructure. To vary the lattice constants, we change the In ... -
Effect of rubber material clamp on core loss of 3-phase 100 kVA transformer core
(Asian Network for Scientific Information, 2013)This study describes the result of an investigation on the effect of rubber material clamp of core lamination with stagger yoke on three 100 kVA three-phase distribution transformer. The investigation involves the variation ... -
Effect of stack of transformer core lamination on losses and flux distribution in 3-phase distribution transformers 1000kVa
(Universiti Malaysia Perlis, 2008)This paper describes the results of an investigation on the effect of different amount of layers per stack of core lamination in the three of 3-phase distribution transformers 1000kVA. The investigation involves the variation ... -
Effect of two different superstrate layers on Bismuth Titanate (BiT) array antennas
(Macmillan Publishers Limited, 2014-01)The microwave industry has shown increasing interest in electronic ceramic material (ECM) due to its advantages, such as light weight, low cost, low loss, and high dielectric strength. In this paper, simple antennas covered ... -
The effects of harmonic components on transformer losses of sinusoidal source supplying non-linear loads
(Science Publications, 2006)An important consideration when evaluating the impact of harmonics is their effect on power system component and loads. Sinusoidalare major components in power systems. The increased losses due to harmonic distortion can ... -
Evaluation of in-plane flux distribution in 3phase 100kVA transformer core
(Praise Worthy Prize S.r.l., 2012-06)These papers describe the result of measurement and evaluate the behaviours of inplane flux distribution on 100kVA 3phase distribution transformer assembled with the combination of 60°-45° T-joint. Methodology that is used ... -
Evaluation of the localised loss transformer core lamination
(Asian Network for Scientific Information, 2010)The magnetic flux has to change its direction at butt-joint meanwhile at butt-joint occur the hot spot. The hot spot can be measure using thermistor in term gradient temperature. These papers describe the result of measurement ... -
Evolutionary based maximum power point tracking technique using differential evolution algorithm
(Elsevier B.V., 2013)This paper presents a maximum power point tracking (MPPT) technique for photovoltaic (PV) system using a modified differential evolution (DE) algorithm. The standard DE is modified to deal with dynamic objective function ... -
Experimental determination of the performance of rice husk-carbon nanotube composites for absorbing microwave signals in the frequency range of 12.4-18 GHz
(EMW Publishing, 2013)Composites of rice husks and carbon nanotubes (RHC-NTs) are an innovation in improving the absorption of microwave signals. Rice husks, which are an agricultural waste material, have been found to possess a significant ... -
Fabrication and investigation of copper rotor bar on 0.5HP induction Motor-A performance and economical study
(Australian Journal of Basic and Applied Sciences, 2011-05)The paper deals with the fabrication of copper rotor bars for 0.5HP induction motor and then comparing it with the existing aluminium rotor bars. From this experiment the rotors are compared in terms of efficiency increment ... -
Flux simulation on 100kVA three-phase transformer core
(Praise Worthy Prize S.r.l., 2010-06)This paper describes the simulation of flux distribution on 100kVA 3 phase distribution transformer assembled with 60°-45° T-joint and mitred lap corner joint with stagger yoke and limb. The core that being used is 3% ... -
Generic model of active distribution network for large power system stability studies
(Institute of Electrical and Electronics Engineers (IEEE), 2013)This paper presents the development of the dynamic equivalent model of an active distributed network (ADN) based on the grey-box approach. The equivalent model of an ADN comprises a converter-connected generator and a ... -
Harmonics suppression single-fed dual-circularly polarized microstrip patch antenna for future wireless power transmission
(Engg Journals Publications, 2013-10)This paper presents a novel design of a harmonic suppression single-fed dual-circularly polarized microstrip patch antenna for a rectenna system in the future wireless power transmission application. The proposed antenna ... -
High-speed, simplified design of an image receiver for wireless capsule endoscopy
(EMW Publishing, 2013)Just over a decade ago, wireless capsule endoscopy (WCE) was introduced as a novel alternative to conventional wire or probe endoscopy to examine disorders of the human gastrointestinal (GI) tract. Yet, the persistent ... -
A hybrid particle swarm optimization approach and its application to solving portfolio selection problems
(Fuji Technology Press, 2011-06)In modern portfolio theory, the basic topic is how to construct a diversified portfolio of financial securities to improve trade-offs between risk and return. The objective of this paper is to apply a heuristic algorithm ...