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259 articles for “design parameters”

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Research ArticleOpen accessIn the abstractAdaptive Controllers for Permanent Magnet Brushless DC Motor Drive System using Adaptive-Network-based Fuzzy Interference SystemV.M. Varatharaju, Badrilal Mathur, UdhayakumarProblem statement: The tuning methodology for the parameters of adaptive speed controller causes a transient deviation of the response from the set reference following variation in load torque in a permanent-magnet brushless DC (BLDC) motor drive system. Approach: This study develops a mathematical model of the BLDC drive system, firstly. Secondly, discusses a design of the closed loop drive system … …American Journal of Applied Sciences, Vol. 8, Issue 8 · 19 Jul 2011 · 6,948 accessesView PDFCite
Research ArticleOpen accessIn the abstractNew Research Approach to Rebuild Sport FacilitiesGaetano Raiola, Tiziana D’IsantoProblem statement: The game court of team sport, part of Sport Centre of Arturo Collana, was closed after structural accident in 2006 and the local administration is now designing the rebuilding of it. For this reason, it has already allocated economical resource to study a partial reconstruction of it to reutilize actual structure. The problem is how can satisfy the … …Journal of Social Sciences, Vol. 7, Issue 3 · 16 Jul 2011 · 7,311 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Different Exogeneous Compounds on Biosorption of EndosulfanDeepika Dave, A. K. DikshitProblem statement: Organochlorine pesticide endosulfan is widely used as a replacement for DDT and dieldrin in many parts of the world. Presence of residual pesticides in the water, air and soil environment was confirmed since 1960s. Such Persistent Organic Pollutants (POPs) are of concern because of their long-term subtle effects on hormones, the immune system and reproduction. Therefore, it becomes … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 11 Jul 2011 · 7,205 accessesView PDFCite
Research ArticleOpen accessIn the abstractFeasibility Study and Performance Analysis of Solar Assisted Desiccant Cooling Technology in Hot and Humid ClimateArfidian Rachman, Kamaruzzaman Sopian, Sohif Mat, Muhammad YahyaProblem statement: New approaches to space conditioning of buildings are to resolve environmental, economic and regulatory issues. One of the alternative systems that brought to agenda is the desiccant cooling systems, which may provide important advantages in solving air conditioning problems. Approach: The performance analysis of desiccant cooling with solar energy are analyzed. The system was designed, constructed and tested … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 11 Jul 2011 · 7,508 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy on Nitrogen Concentration of Corn HybridsPravin Gautam, Dawn Gustafson, Zeno Wicks IIIProblem statement: Though Nitrogen (N) is vital in different physiological and developmental processes in plants and animals, it poses several environmental, nutritional and health problems, if present in excess amounts. Reduction in excess input of N into the soil, thereby reducing environmental problems and consequently nutritional and health problems, can be achieved by balancing their concentration in animal feed. Therefore, … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 10 Mar 2011 · 8,276 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigation of Abutment Displacement of a Full Height Integral Bridges in Dense Granule BackfillM. H. Alizadeh, A.R. Khalim Rashid, Zamri Chik, S. M. MirhosseinyProblem statement: In this study, the behavior of abutment wall in full height frame integral abutment bridges was investigated. It was seen that the effect of backfill soil resistance on behavior of abutment wall movement is mostly neglected in previous studies. In this research, the final bridge superstructure displacement under temperature-induced forces was formulated. In addition, according to the final … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 30 Nov 2010 · 8,357 accessesView PDFCite
Research ArticleOpen accessIn the abstractComputational Study of Hybrid Water Heater with Evacuated Glass Tube Solar Collector and Rice Husk CombustionPiyanun Charoensawan, Chaiwat WannagositProblem statement: The thermal performance modeling of hybrid water heater with evacuated glass tube solar collector and flue gas of rice husk combustion was developed. The solar global radiation and ambient air temperature data used in the system modeling belongs Phitsanulok province from 7 am-5 pm in the summer season. Approach: The system can be divided into two parts, i.e., … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 7,598 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstablishment, Verification and Application of a Correlation to Predict the Maximum Heat Flux of a Horizontal Closed-Loop Pulsating Heat PipeNiti Kammuang-Lue, Teerasak Hudakorn, Pradit TerdtoonProblem statement: In heat pipe design, it was very important to be sure that the desired heat pipe would not operate in the MHF state. In the case of a vertical CLPHP, the MHF state and maximum heat flux could be predicted by using the correlation, while, in the case of a horizontal CLPHP, there had been no study presented … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 7,431 accessesView PDFCite
Research ArticleOpen accessIn the abstractEmpirical Validation of Daylight Simulation Tool with Physical Model MeasurementYaik-Wah Lim, Mohd. Hamdan Ahmad, Dilshan Remaz OssenProblem statement: In recent years, daylighting simulation tools have been increasingly used by many architects, engineers and researchers to evaluate the day lighting performances of building design. Most of these tools employ CIE sky models for simulation. However, the accuracy and applicability of these tools for tropical sky are doubtable. The aim of this study was to validate the computer … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 8,905 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Particle Swarm Optimization Based Edge Preserving Impulse Noise FilterS. Mohamed Mansoor Roomi, P.L. Muthu Karuppi, P. Rajesh, B. Guru RevathiProblem statement: Image sensors and communication channels often introduce impulse noise in image transmission. The most common filters available to remove such noise are median filter and its variants but the major drawbacks identified with them are blurring of edge detail and low noise suppression. To preserve the sharp and useful information in the image, the filtering algorithms are required … …Journal of Computer Science, Vol. 6, Issue 9 · 30 Sep 2010 · 7,477 accessesView PDFCite