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2,855 results for “PI Control”
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Research ArticleOpen accessIn the abstractA Mobile Robot Path Planning Using Genetic Algorithm in Static EnvironmentIsmail AL-Taharwa, Alaa Sheta, Mohammed Al-WeshahIn this study we present our initial idea for using genetic algorithms to help a controllable mobile robot to find an optimal path between a starting and ending point in a grid environment. The mobile robot has to find the optimal path which reduces the number of steps to be taken between the starting point and the target ending point. … …Journal of Computer Science, Vol. 4, Issue 4 · 30 Apr 2008 · 20,314 accessesView PDFCite
Research ArticleOpen accessIn the abstractSNL2Z: Tool for Translating an Informal Structured Software Specification into Formal SpecificationMohamed A. Sullabi, Zarina ShukurIn the area of software engineering there have been very few efforts to automate the translation from specifications written in natural language to the formal specification languages. Writing of the specifications in natural language is always depending on context and it is commonly vagueness; this represents the major reasons of the challenge. This paper discusses the design of a tool … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 7,145 accessesView PDFCite
Research ArticleOpen accessIn the abstractKinetic Study of the Effect of Selected Surfactants on Corrosion of CopperHowaida M. El-KashlanThe rates of copper corrosion were determined by measuring the limiting current of anodic dissolution of copper in phosphoric acid in presence and in absence of cetyl trimethyl ammonium bromide (CTAB) and cetyl pyridinium bromide (CPYB). The rate of corrosion is found to decrease by increasing the concentration of the surfactant. The percentage of inhibition ranged from 1.85 to 33.97% … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 7,140 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign, Validation, Simulation and Parametric Evaluation of a Novel Protocol for Locating Mobile Agents in Multiregion EnvironmentRama Sushil, Kumkum Garg, Rama BhargavaMobile agents are processes that can be dispatched from source computer and be transported to remote servers for execution, have been widely argued to be an important enabling technology for future systems. Location management is a necessity for locating mobile agents in a network of mobile agent hosts for controlling, monitoring and communication during processing and it still represents an … …Journal of Computer Science, Vol. 4, Issue 3 · 31 Mar 2008 · 6,940 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnti-Platelet and Anti-Endothelial Cell Autoantibodies in Vietnamese Infants and Children with Dengue Hemorrhagic FeverNguyen Thanh Hung, Nguyen Trong Lan, Yee-Shin Lin et al.Dengue hemorrhagic fever (DHF) is a serious public health problem. Increased vascular permeability and thrombocytopenia are the hallmarks of DHF. The mechanisms involved in DHF/Dengue shock syndrome (DSS) pathogenesis is not fully understood. This study gives evidence of the presence of antibodies which cross-reacted with platelets, and endothelial cells in the sera of Vietnamese infants and children with DHF/DSS. The … …American Journal of Infectious Diseases, Vol. 4, Issue 1 · 31 Mar 2008 · 7,371 accessesView PDFCite
Research ArticleOpen accessIn the abstractTransmission Congestion Management by Determining Optimal Location of FACTS Devices in Deregulated Power SystemsSeyed Abbas Taher, Hadi BesharatIn a deregulated electricity market, it may always not be possible to dispatch all of the contracted power transactions due to congestion of the transmission corridors. The ongoing power system restructuring requires an opening of unused potentials of transmission system due to environmental, right-of-way and cost problems which are major hurdles for power transmission network expansion. Flexible ac transmission systems … …American Journal of Applied Sciences, Vol. 5, Issue 3 · 31 Mar 2008 · 8,507 accessesView PDFCite
Research ArticleOpen accessIn the abstractKinetic Study of the Effect of Benzoic Acid Derivatives on Copper ElectrodepositionHowaida M. El-KashlanThe effect of anodic oxygen bubbles on the rate of mass transfer in presence of benzoic acid, p-nitro, p-chloro and p-aminobenzoic acids were studied by measuring the limiting current of cathodic deposition of copper from acidified copper sulphate solution using lead anode. It is found that the rate of deposition decreases by adding organic substances. The rate of deposition depends … …American Journal of Applied Sciences, Vol. 5, Issue 3 · 31 Mar 2008 · 7,130 accessesView PDFCite
Research ArticleOpen accessIn the abstractStrength and Ductility of Randomly Distributed Palm Fibers Reinforced Silty-Sand SoilsS.M. Marandi, M.H. Bagheripour, R. Rahgozar, H. ZareThis paper investigates the resultant strength and ductility behavior when randomly distributed palm fibers are used to reinforce silty-sand soils. The composite soils were tested under laboratory conditions and examined for unconfined compression strength (UCS), California Bearing Ratio (CBR) and compaction test. The results indicated that; the maximum and residual strengths, orientation of surface failures, ductility and the stress-strain relationship … …American Journal of Applied Sciences, Vol. 5, Issue 3 · 31 Mar 2008 · 8,864 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessment of The Biological Integrity of The Native Vegetative Community In A Surface Flow Constructed Wetland Treating Industrial Park ContaminantsC. C. Galbrand, A. M. Snow, Abdel E. Ghaly, R. CôtéA study was conducted to evaluate the biological integrity of a constructed wetland receiving landfill leachate and stormwater runoff from the Burnside Industrial Park, Dartmouth, Nova Scotia. The biological integrity of the constructed wetland was tested in the second growing season using vegetative community monitoring. The metrics analyzed were species diversity, species heterogeneity (dominance) and exotic/invasive species abundance. There was … …OnLine Journal of Biological Sciences, Vol. 7, Issue 1 · 31 Dec 2007 · 7,002 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnti-Diabetic Activity of a Fraction from Cissus verticillata and Tyramine, its Main Bioactive Constituent, in Alloxan-Induced Diabetic RatsCleide de Sousa Lino, Thiago de P. Sales, Patrícia B. Gomes et al.Cissus verticillata (syn. C. sycioides, fam. Vitaceae) is a medicinal plant popularly used in Brazil, for the treatment of diabetes mellitus. The anti-diabetic activity of a fraction from leaves of Cissus verticilllata (MSF, methanol soluble fraction), as well as that of tyramine (TYR) were investigated, in the model of alloxan-induced diabetes, in male Wistar rats. The biochemical parameters studied were: … …American Journal of Pharmacology and Toxicology, Vol. 2, Issue 4 · 31 Dec 2007 · 8,628 accessesView PDFCite