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56 results for “Current Density”
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Research ArticleOpen accessIn the abstractOptimal Dark Current Reduction in Quantum Well 9 µm GaAs/AlGaAs Infrared Photodetectors with Improved DetectivityShahram Mohammad Nejad, Saeed Olyaee, Maryam PourmahyabadiIn this research, an optimization approach is presented to decrease the dark current in GaAs/AlGaAs QWIPs. The dark current noise is reduced by increasing Al density in barriers, decreasing detector dimensions and increasing the periodic length of the structure. In addition, increasing the number of periods can reduce both the dark current and responsivity. Therefore, devices can be optimally designed … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 7,188 accessesView PDFCite
Research ArticleOpen accessIn the abstractLocalization of Implanted Impurities in SiliconM. Jadan, Jihad S.M. AddasiLocalization of implanted boron impurities at the nodes and interstitial of silicon depending on the implantation current density has been studied by the X-ray diffraction and astrophysical methods. A shares of the impurity at the lattice sites increases with growing current density due to the instantaneous vacancy concentration and suppression of the impurity displacement from the sites by silicon interstitial. …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,712 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnatomical Changes of Akar Putra Chicken Digestive System after Partial Ablation of Uropygial GlandHasan Saad Jawad, Lokman Hakim bin Idris, Md Zuki bin Bakar, Azhar bin KassimThe current study proposes anatomical changes in the digestive system of 120 Akar Putra chicken after surgical removing of auropygial gland. The experiment comprised of five treatments (24 chicken/treatment), with 3 replicates (8 chicken/replicate). The experimental treatments consist of a control treatment T1; partial ablation of the uropygial gland were applied on T2, T3, T4 and T5 treatments at 3, … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 4 · 28 Oct 2015 · 8,286 accessesView PDFCite
Research ArticleOpen accessIn the abstractCHARACTERISTIC ANALYSIS OF DUAL GATE METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR BY MATHEMATICAL MODELINGC.A. Abdul Nazar, V. KannanIn this study, the characteristics of DGMOSFET were obtained using mathematical modeling. The variations of characteristics were analyzed with different conditions into consideration. Different parameters behavior is analyzed, such as Transcapacitance variation with the gate voltage, threshold voltage variation with respect to lateral straggle parameter and temperature, mobile charge density variation is also analyzed and also the drain characteristics of … …American Journal of Applied Sciences, Vol. 11, Issue 8 · 5 May 2014 · 6,618 accessesView PDFCite
Research ArticleOpen accessIn the abstractQUALITY BASED SPEAKER VERIFICATION SYSTEMS USING FUZZY INFERENCE FUSION SCHEMELydia Abdul Hamid, Dzati Athiar RamliPerformances of single biometric speaker verification systems are outstanding in clean condition but drop significantly in noisy condition. Implementation of multibiometric systems is one of the solutions to this limitation. However, in order to ensure the performances of multibiometric systems are sustained, the optimum weight for the fusion system must be determined correctly according to the quality of current data. … …Journal of Computer Science, Vol. 10, Issue 3 · 3 Dec 2013 · 6,898 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Novel Technique to Perform Plating on Printed Circuit BoardS. Jayapoorani, Dalim Kumar Ghosh, Azad Mohammed ShaikProblem statement: This research attempts to optimize the parameters for pulse plating of silver on printed circuit board. The idea here is to use pulse plating technique which is metal deposition by pulsed electrolysis method. Approach: Printed Circuit Boards (PCB) plays a major role in all communication and electronics industry. Silver is a ductile and malleable metal which has 7% … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 20 Aug 2011 · 8,252 accessesView PDFCite
Research ArticleOpen accessIn the abstractNatural Sensitizer for Dye-Sensitized Solar Cells Using Three Layers of Photoelectrode Thin Films with a Schottky BarrierHo Chang, Mu-Jung Kao, Tien-Li Chen et al.Problem statement: This study combines Au nanoparticles with TiO2 nanoparticles to form a Schottky barrier and applies it to the photoelectrode thin film of Dye-Sensitized Solar cells (DSSCs). Approach: First, commercial TiO2 powder (Degussa P25) was put into the alkaline solution to prepare TiO nanotubes (Tnt) by a hydrothermal process. Tnt were sintered at 550° to obtain TntC550 particles and … …Current Research in Nanotechnology, Vol. 1, Issue 1 · 15 Jun 2011 · 7,983 accessesView PDFCite
Research ArticleOpen accessIn the abstractLinear Genetic Programming for Prediction of Nickel Recovery from Spent Nickel CatalystMona E. Ossman, Walaa Sheta, Y. EltaweelProblem statement: In this study Linear Genetic Programming (LGP) and statistical regression are used in predicting Current Efficiency (CE) of Electro deposition cell used for recovery of nickel from spent nickel catalyst. Approach: The Nickel electro deposition from spent catalyst leachate solutions was studied to determine the effect of the operative conditions such as nickel concentration, temperature, current density and … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,345 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Watershed Structures in Controlling Runoff - Case Study of Sardasht Basin in IRANSeyedeh Zahra Hosseini-Teshnizi, Ghodratollah Davoudi, Seyedeh Laleh Razavi, Kaveh Ostad-Ali-AskariIn order to investigate the performance of constructed structures in Sardasht watershed, Soil and Water Assessment Tools model for simulation of runoff and sediment during the studied period of 1996-2012 was carried out for two cases of existence and absence of flood control structures. From 2007 onwards by performing watershed operations in these sub-basins, the average runoff rate decreased about … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 1 · 26 Feb 2020 · 7,346 accessesView PDFCite
Research ArticleOpen accessIn the abstractExperimental Investigation of Limonene-based Environmental-Friendly Emulsion Drilling MudOlaitan Oluwaseum Micheal, Orodu Oyinkepreye David, Ehinmowo Adegboyega BoluThe use of emulsion drilling mud in the oil and gas industry has gained wide acceptance. However, the disposal of drill cuttings and the waste of such emulsion drilling mud usually poses environmental concern. Hence, there is the need to seek oil from biodegradable sources as an alternative to the current conventional diesel oil which constitute environmental threat. In this … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 12 Jun 2017 · 7,923 accessesView PDFCite