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432 results for “H. S. Loo”

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Research ArticleOpen accessEvery word in the titlePerformance Analysis of a 32-Bit Multiplier with a Carry-Look-Ahead Adder and a 32-bit Multiplier with a Ripple Adder using VHDLHasan Krad, Aws Y. Al-TaieThis study presents a performance analysis of two different multipliers for unsigned data, one uses a carry-look-ahead adder and the second one uses a ripple adder. The study's main focus is on the speed of the multiplication operation on these 32-bit multipliers which are modeled using VHDL, A hardware description language. The multiplier with a carry-look-ahead adder has shown a … …Journal of Computer Science, Vol. 4, Issue 4 · 30 Apr 2008 · 7,391 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleComparisons of Heat Transfer Performance of a Closed-looped Oscillating Heat Pipe and Closed-looped Oscillating Heat Pipe with Check Valves Heat ExchangersP. Meena, S. RittidechThis research was to study the comparisons of heat transfer performance of closed-looped oscillating heat pipe and closed-looped oscillating heat pipe with check valves heat exchangers with R134a, Ethanol and water were used as the working fluids. A set of heat pipe heat exchanger (CLOHP and CLOHP/CV) were made of copper tubes in combination of following dimension: 2.03 mm inside … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2008 · 7,496 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Evaporator Lengths and Ratio of Check Valves to Number of Turns on Internal Flow Patterns of a Closed-Loop Oscillating Heat-Pipe With Check ValvesS. Rittidech, P. Meena, P. TerdtoonA visualization study of the internal flow patterns of a closed-loop oscillating heat-pipe with check valves (CLOHP/CV) at normal operating condition for several evaporator lengths (Le), and ratio of check valves to number of turns (Rcv) has been conducted. This article describes the effects of varying Le, and Rcv on flow patterns. The CLOHP/CV used a Pyrex glass tube with … …American Journal of Applied Sciences, Vol. 5, Issue 3 · 31 Mar 2008 · 7,274 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Story and a Belief in Spirit of Phoo (Grandpa) Loop : An Access to Resources of Fishermen at the Ubon Rattana Dam, Khon Kaen, ThailandWichian Mibun, Chayan Vaddhanaphuti, Somsak Srisontisuk, Chusak WittayapakThe purposes of the article were twofold. 1. To bring a belief in spirit to gain an access to resources. 2. To propose a working model of and adapting method for utilizing resources of fishermen at the Ubon Rattana Dam. The documentary and field data were collected using participant observations and in-depth interviews. The theory of access was used to … …Journal of Social Sciences, Vol. 3, Issue 4 · 31 Dec 2007 · 7,927 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHigh Performance Computing on Fast Lock Delay Locked Loop with Low Power State and Simultanoeus Switching Noise ReductionT. S. Karthik, V. Jawahar Senthil KumarProblem statement: In any multimedia processor, controller may consume most of the on-chip memory resources. The memory requirement is directly depends on algorithm shared by different blocks, so leads to failure in the system models. Approach: This study presents the implementation of DLL unit used for memory optimization. Various aspects of the underlying coarse lock detector are explored and modifications … …Journal of Computer Science, Vol. 8, Issue 3 · 6 Jan 2012 · 7,179 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSensitive and Rapid Detection of Sulfate-Reducing Bacteria in Jet Fuel by Loop-Mediated Isothermal Amplification Combined with Lateral Flow DipstickZezhen Li, Yun Xiong, Peng Zhu, Hailong HuangThe existence of Sulfate-Reducing Bacteria (SRB) is one of the significant reasons for the Microbially Influenced Corrosion (MIC) of jet fuel. Especially for the jet fuel stored by military, since jet fuel is stored in the tank for a long time, some oxygen-consuming bacteria such as Amorphotheca resinae and Bacillus Cohn can consume oxygen and generate organic acids at the … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 2 · 11 Apr 2018 · 10,398 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAn NPV Optimization Model for Closed-Loop Supply Chain Network Design and PlanningAl-Ashhab Mohamed Sayed, Nahid AfiaAs the importance of forward-reverse logistics increases, attention will be focused on parameters which affect Net Present Value (NPV) of the whole system, aiming at considering the time value of money in planning. In this research, an NPV optimization model for multi-period multi-product closed-loop supply chain network design and planning is developed to maximize the total NPV. The effect of … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 1 · 18 Feb 2017 · 7,638 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSimulation Analysis on Proportional Integral and Derivative Control of Closed Loop DC Motor Drive with Bipolar Voltage SwitchingP. Karpagavalli, A. Ebenezer JeyakumarThis study presents the performance of a new four quadrant single phase DC drive closed loop system controlled by proportional integral and derivative controller with Pulse Width Modulation (PWM) full bridge DC-DC converter using bipolar voltage switching. The proposed method is found to be more efficient in improving the step response characteristics such as reducing the settling time, rise time, … …American Journal of Applied Sciences, Vol. 10, Issue 7 · 29 Jun 2013 · 6,912 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHardware in the Loop Simulator for Multi Agent Unmanned Aerial Vehicles EnvironmentKamal S. Ali, Justin L. ShumakerThis study describes a Multi-Agent Hardware In the Loop Simulator (HILS) for Unmanned Aerial Vehicles’ (UAV) autopilots. This HILS system allows multiple autopilots to fly multiple virtual airframes in the same virtual environment allowing these agents to interact as a swarm. This system makes the exploration and evaluation of Multi Agent Systems (MAS) possible at minimal cost. …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 2 · 10 May 2013 · 7,533 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDesign and Implementation of Closed Loop LCL-T Resonant DC-to-DC Converter Using Low Cost Embedded ControllerM. Annamalai, M. Vijaya KumarThe aim of this study is to simulate and implement open loop and closed loop controlled DC-DC converter for stand-alone wind energy system. Wind turbines, however, are not always very efficient in the wind speeds that are most common to a region. Typically, wind energy systems are designed to be highly efficient in high wind speed and have a cut-off … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 4 · 6 Feb 2013 · 7,592 accessesView PDFCite