Research ArticleOpen accessIn the abstractTopologies Induced by Relations with ApplicationsA. S. SalamaTopological structures induced by relations represents the process of extracting interesting decision rules from data. The attributes reduction and the calculation of core are the essentials to extract the decision rules. Finding the reducts, core and decision rules topologically is a new mathematical tool for discovering attribute dependencies in information systems. Problem statement: These mathematical tools employ some concepts from … …Journal of Computer Science, Vol. 4, Issue 10 · 31 Oct 2008 · 7,218 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation, Selection and Assessment of Guidelines for Chemical Stabilization of Tropical Residual SoilsBujang B.K. Huat, Asmidar Alias, Azlan Abdul AzizSoil stabilization has been widely used as an alternative to substitute the lacking of suitable materials on site. Guidelines and standards have been developed to assist practitioners in designing structures such as road by mean of stabilization. This paper presents the results of an investigation aimed at evaluating and assessing the suitable guidelines for the stabilization of tropical residual soils. … …American Journal of Environmental Sciences, Vol. 4, Issue 4 · 31 Aug 2008 · 7,653 accessesView PDFCite
Research ArticleOpen accessIn the abstractConfigurable Multirate Filter BanksAli Al-HajMultimedia communications require efficient and real-time implementations of multirate digital signal processing systems. The backbone structures of multirate systems are digital multirate filter banks. Therefore, efficient multimedia communications rely, in the first place, on real-time implementations of multirate filter banks. In this paper, we describe a Field Programmable Gate Array (FPGA) implementation of the analysis and synthesis filter banks which … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 6,382 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeo-Seismic Environmental Aspects Affecting Tailings Dams FailuresJuan M. Mayoral, Miguel P. RomoSeismic performance evaluations of tailings dams are essential for characterizing the geo-environmental risks posed by these earthen structures, which should include the geotechnical hazards implied by slope instability failure, free board loss and the potential release of contaminants. The observed damage is more important when liquefaction occurs on the dam body and foundation, which often leads to cracking, settlements, tilting … …American Journal of Environmental Sciences, Vol. 4, Issue 3 · 30 Jun 2008 · 7,088 accessesView PDFCite
Research ArticleOpen accessIn the abstractSoil Structure Interaction between Two Adjacent Buildings under Earthquake LoadMahmoud Yahyai, Masoud Mirtaheri, Mehrab Mahoutian et al.In some cases, tall buildings are located in geotechnically unsuitable places, due to their high ratio of height to width; there is risk of uplift and other effects such as overturning and reduction structure serviceability during earthquake. This research is aimed to evaluate the effect of Soil-Structure Interaction (SSI) on seismic behavior of two adjacent 32 story buildings such as … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 2 · 30 Jun 2008 · 9,352 accessesView PDFCite
Research ArticleOpen accessIn the abstractPitch Angle Control of Variable Speed Wind TurbineYousif El-TousThe aim of this study is to design a simple controller to maximize the extracted energy of wind turbines. In this study the pitch angle control of variable speed wind turbine is investigated. In particular, it concentrates on the extraction of maximum available energy, reduction of torque and output power variations, which gives stresses in the gearbox and mechanical structure. … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 2 · 30 Jun 2008 · 8,740 accessesView PDFCite
Research ArticleOpen accessIn the abstractPharmacophore Pattern Identification of Tachykinin Receptor Selective Peptide Agonists: Implications in Receptor SelectivityAnjali Dike, Indu R. Chandrashekaran, Anil K. Mantha et al.The mammalian tachykinin (TK) peptides and their three Neurokinin (NK1, NK2 and NK3) receptors represent an effector system with wide-ranging actions on neuronal, airway smooth muscle, mucosal, endothelial, immune, inflammatory and remodeling cell function. Recent clinical and preclinical data suggests the pathophysiological role of TKs in various diseases including asthma, emesis and depression. The TK-NK receptor interactions and overlapping functions … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 4 · 31 Dec 2007 · 6,693 accessesView PDFCite
Research ArticleOpen accessIn the abstractBusiness Cycle Synchronization Between Australia and New ZealandJie Wei, Minsoo Lee, Christopher GanThere has been a high degree of economic and financial integration between Australia and New Zealand with free trade agreements linking the capital and labor markets. Given a strong economic relationship, business-cycle transmission is expected to exist between the two countries. By analyzing the shock-transmission channels via trade, monetary policy, and exchange rates between Australia and New Zealand we can … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 7,283 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment of an Axisymmetric Thermal Plume between Vertical PlatesJamil Zinoubi, Adel Gammoudi, Taoufik Naffouti et al.This investigation analyses the turbulent structure of a thermal plume created by a heated disk, evolving between vertical plates. The objective of the study was to understand the development mechanisms of this buoyancy driven flow. The analysis of the average and the fluctuating fields of the temperature as well as the flow visualisation show the existence of three different zones. … …American Journal of Applied Sciences, Vol. 4, Issue 9 · 30 Sep 2007 · 7,041 accessesView PDFCite