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206 results for “AC machines”
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Research ArticleOpen accessIn the abstractSpecialization of Recursive Predicates from Positive Examples OnlyMoussa DembaProblem statement: Given an overly general (definite) program P and its intended semantics Φ (the programmer’s intentions) where P does not satisfy Φ, find out a new version P’ of P such that P’ satisfies Φ. Approach: We proposed an approach for correcting overly general programs from positive examples by exploiting program synthesis techniques. The synthesized program, P’, is a … …Journal of Computer Science, Vol. 6, Issue 6 · 30 Jun 2010 · 6,856 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Novel Linear Switched Reluctance Machine: Analysis and Experimental VerificationN. C. Lenin, R. ArumugamThe important problems to be solved in Linear Switched Reluctance Machines (LSRMs) are: (1) to design the shape and size of poles in stator and translator cores; (2) to optimize their geometrical configuration. A novel stator geometry for LSRMs that improved the force profile was presented in this study. In the new geometry, pole shoes were affixed on the stator … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 7,264 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment and Evaluation of Tractors and Tillage Implements Instrumentation SystemS. A. Al-Suhaibani, A. A. Al-Janobi, Y. N. Al-MajhadiProblem statement: Field machines contribute a major portion of the total cost of crop production. Proper selection and matching of farm machinery is essential in order to reduce the cost of crop production. Performance data for tractors and implements are, therefore, essential for farm machinery operators and manufacturers alike. The aim of this study was to develop and evaluate an … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,313 accessesView PDFCite
Research ArticleOpen accessIn the abstractEco-Efficient Product Design Using Theory of Inventive Problem Solving (TRIZ) PrinciplesIssac Lim Sing Sheng, Teoh Kok-SooProblem statement: In recent years, much attention has been focused on the eco-efficiency of product development. The majority of environmental decisions are only made in the later stages of product development where not much modification can be done. To produce eco-efficient products, environmental decisions ought to be considered in the early stages of product development. With the demand of developing … …American Journal of Applied Sciences, Vol. 7, Issue 6 · 30 Jun 2010 · 11,989 accessesView PDFCite
Research ArticleOpen accessIn the abstractSugar Beet Performance Affected by Uniformity of N FertigationH. Nouri, M. S.M. Amin, S. J. Razavi et al.In common with the majority of crop species, in sugar beet nutrition nitrogen is an important element due to its role in sucrose utilization and plant growth. Application of precision agriculture, in order to apply the right amount of input at the right time in the right area, is appropriate to decrease chemical use and increase plant growth. Problem statement: … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,936 accessesView PDFCite
Research ArticleOpen accessIn the abstractMachinery Compaction Effects on Physical Properties of Bernam Series in an Oil Palm PlantationZuraidah Yahya, Aminuddin Husin, Jamal Talib et al.Problem statement: Introduction of mechanisation in oil palm (Elaeis guineensis) plantations could result in soil compaction and cause soil degradation. This could be a serious problem in the future due to increase in size, weight and transportation frequency of machines used. Objectives: This trial was carried out to evaluate the effect of different trailer weights and transportation frequencies on the … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 8,085 accessesView PDFCite
Research ArticleOpen accessIn the abstractApplication of a Database in the Monitoring of Workstations in a Local Area NetworkEyo O. Ukem, Buba G. BajogaProblem statement: Computer hardware fault management and repairs can be a big challenge, especially if the number of staff available for the job is small. The task becomes more complicated if remote sites are managed and an engineer or technician has to be dispatched. Approach: Availability of relevant information when needed could ease the burden of maintenance by removing uncertainties. … …Journal of Computer Science, Vol. 5, Issue 11 · 30 Nov 2009 · 6,630 accessesView PDFCite
Research ArticleOpen accessIn the abstractUnbalance Quantitative Structure Activity Relationship Problem Reduction in Drug DesignD. Pugazhenthi, S. P. RajagopalanProblem statement: Activities of drug molecules can be predicted by Quantitative Structure Activity Relationship (QSAR) models, which overcome the disadvantage of high cost and long cycle by employing traditional experimental methods. With the fact that number of drug molecules with positive activity is rather fewer than that with negatives, it is important to predict molecular activities considering such an unbalanced … …Journal of Computer Science, Vol. 5, Issue 10 · 31 Oct 2009 · 6,707 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Prototype Two-Axis Laser Scanning System used in Stereolithography Apparatus with New Algorithms for Computerized Model SlicingM. Habibi, H. Shahmohammadi, V. Taraghi et al.Problem statement: A successful operation of rapid prototyping process depends on software and hardware which are used in RP machines. About software, an efficient technique is required to slice the CAD model. Several slicing methods are used for slicing from Standard Triangulation Language (STL) files, such as direct slicing and adaptive slicing. Using these methods reduce accuracy of physical part … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 7,357 accessesView PDFCite
Research ArticleOpen accessIn the abstractVoltage Sag Effects on the Process Continuity of a Refinery with Induction Motors LoadsTarek I. ElShennawy, Mahmoud A. El-Gammal, Amr Y. Abou-GhazalaProblem statement: Process continuity of industrial plants (like a refinery) is subjected to several shutdowns due to voltage sags causing large induction motors to trip, either by undervoltage or by overcurrent relays, sometimes by the mechanical protection. These unplanned shutdowns cost the plant tens of thousands of dollars per shutdown in addition to material damage costs, restart charges and any … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 7,132 accessesView PDFCite