196 results for “direct method”

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Research ArticleOpen accessAll words, across the recordModeling of Nitric Oxide Formation in Single Cylinder Direct Injection Diesel Engine Using Diesel-Water EmulsionK. Kannan, M. UdayakumarProblem statement: Water injection into the combustion chamber of diesel engine found to be one of best method for in-cylinder control of NOx formation. Approach: The combustion of water-diesel emulsion in diesel engine was simulated using a computer program to estimate the heat release rate, cylinder pressure, brake thermal efficiency, brake specific fuel consumption and NO formation. Results: The numerical … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,268 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordMulticore Based Open Loop Motor Controller Embedded System for Permanent Magnet Direct Current MotorK. Baskaran, K.S. Vijula GraceProblem statement: In an advanced electronics world most of the applications are developed by microcontroller based embedded system. Approach: Multicore processor based motor controller was presented to improve the processing speed of the controller and improve the efficiency of the motor by maintaining constant speed. It was based on the combination of Cortex processor (Software core) and Field Programmable Gate … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 22 Mar 2012 · 7,035 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordComposite Pseudo Associative Cache with Victim Cache for Mobile ProcessorsLakshmi Deepika Bobbala, Monobrata Debnath, Byeong Kil LeeProblem statement: Multi-core trends are becoming dominant, creating sophisticated and complicated cache structures. One of the easiest ways to design cache memory for increasing performance is to double the cache size. The big cache size is directly related to the area and power consumption. Especially in mobile processors, simple increase of the cache size may significantly affect its chip area … …Journal of Computer Science, Vol. 7, Issue 10 · 4 Aug 2011 · 7,089 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordMitigation Voltage Sag in Power System by Static Synchronous CompensatorPrechanon KumkratugProblem statement: The disturbance in power system is unavoidable situation. It cause in voltage sag in power system. Approach: This study applied the STATCOM to mitigate voltage of the system. The mathematical model of power system equipped with a STATCOM is systematically derived. The presented mathematical model is shown how it effects on voltage sag improvement. The simulation results are … …American Journal of Applied Sciences, Vol. 7, Issue 12 · 31 Dec 2010 · 7,681 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordPower System Stability Enhancement Using Unified Power Flow ControllerPrechanon KumkratugProblem statement: The enhancement of transient stability of the power system is one of the most challenging research areas in power engineer. Approach: This study presents the method to enhance transient stability of power system by Unified Power Flow Controller (UPFC). The mathematical model of power system equipped with a UPFC is systematically derived. The parameters of UPFC are modeled … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,675 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordForecasting Foreign Direct Investment Inflow in Jordan: Univariate ARIMA ModelAl-Abdulrazag Bashier, Bataineh TalalThe present study is an attempt to build a Univariate time series model to forecast the FDI inflows into Jordan over the coming period 2004-2025. The study employs Box-Jenkins methodology of building ARIMA (Autoregressive Integrated Moving Average) model to achieve the goals of the study. An annual sample time series data for the FDI in Jordan was utilized over the … …Journal of Social Sciences, Vol. 3, Issue 1 · 31 Mar 2007 · 8,385 accessesView PDF Cite