Research ArticleOpen accessIn the abstractUsing the Spreadsheet to Understand Random Sampling Procedures in Relation to the Central Limit TheoremRamzi Naim NasserIn many statistics courses in colleges and universities, random sampling has not been presented to students through a hands-on and practical approach. This research described a real-life method to random sampling was used as an exercise in the statistics class. The method allowed students to recursively select 5, 10, 20, 30, 40, 50, 60 and 70 samples and list these … …Journal of Mathematics and Statistics, Vol. 4, Issue 3 · 30 Sep 2008 · 6,981 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Evaluation of a Waste Stabilization Pond in a Rural Area in EgyptMahassen M.E.D. Ghazy, Waled M.E. Senousy, Azza M.A. Aatty, Mohammed KamelThe performance evaluation of the waste stabilization pond (WSP) as a model of domestic wastewater treatment unit in rural area was carried out. The unit comprised of anaerobic, facultative and maturation ponds in two series. The effluents of WSP which are discharged in the drain had the BOD reduced to 109-245 mg L-1 (Mean = 145.3 mg L-1, 50.65% removal), … …American Journal of Environmental Sciences, Vol. 4, Issue 4 · 31 Aug 2008 · 8,528 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of Phonetic Context Variable Length Unit Selection Module for Malay Text to SpeechTian-Swee Tan, Sh-HussainProblem statement: The main problem with current Malay Text-To-Speech (MTTS) synthesis system is the poor quality of the generated speech sound due to the inability of traditional TTS system to provide multiple choices of unit for generating more accurate synthesized speech. Approach: This study proposes a phonetic context variable length unit selection MTTS system that is capable of providing more … …Journal of Computer Science, Vol. 4, Issue 7 · 31 Jul 2008 · 6,783 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Software Agent for Automatic Creation of a PLC ProgramWalid Mohamed AlyUsing structured design techniques to design a Programmable Logical Control (PLC) program would decrease the time needed for debugging and produces a concise bug free code. This study is concerned with the design of a software agent for automatic creation of code for a PLC program that can be downloaded on a Siemens Step 7 series. The code is generated … …Journal of Computer Science, Vol. 4, Issue 5 · 31 May 2008 · 6,714 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Distance Based Route Maintenance Strategy for Dynamic Source Routing ProtocolMuhammad F. Sjaugi, Mohamed Othman, Mohd. Fadlee A. RasidAlthough DSR can respond a route quickly, it yields a long delay when a route is rebuilt. This is because when source node receives RERR packet, it will try to find alternative routes from the route cache. If alternative routes are not available, the source node, then, will enter route discovery phase to find new routes. We introduced a new … …Journal of Computer Science, Vol. 4, Issue 3 · 31 Mar 2008 · 8,316 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Sensitivity Study of the Validation of Three Regulatory Dispersion ModelsKeith D. Harsham, Michael BennettLidar measurements were made of the dispersion of the plume from a coastal industrial plant over three weeks between September 1996 and May 1998, 67 experimental runs were obtained, mostly of 30 min duration, and these were analysed to provide plume parameters (i.e. height, vertical and lateral spreads). These measurements were supplemented by local meteorological measurements at two portable meteorological … …American Journal of Environmental Sciences, Vol. 4, Issue 1 · 29 Feb 2008 · 6,719 accessesView PDFCite
Research ArticleOpen accessIn the abstractMicroarray Analysis of Human Vascular Smooth Muscle Cell Responses to Bacterial LipopolysaccharideJoe Minta James, J. Yun, Sandy Der, Shikha RanaAccumulating evidence suggest a causal role of bacterial and viral infections in atherogenesis. Bacterial lipopolysaccharide (LPS) has been shown to stimulate resting vascular smooth muscle cells (SMC) with the production of inflammatory cytokines and modulation of quiescent cells to the proliferative and synthetic phenotype. To comprehensively identify biologically important genes associated with LPS-induced SMC phenotype modulation, we compared the transcriptomes … …American Journal of Immunology, Vol. 3, Issue 2 · 31 Dec 2007 · 6,998 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Authoring Tool for As-in-Class E-lectures in E-learning SystemsNael HirzallahThis study lists and discusses the basic features that any E-Learning system should consider. It also proposes an authoring algorithm, namely Slide Generating Algorithm that uses the Authoring-on-the-Fly approach to create electronic course content from real lectures. A tool using the proposed algorithm was implemented packaging the outcome in a SMIL format including audio, video, and slides considering lecturer notes, … …American Journal of Applied Sciences, Vol. 4, Issue 9 · 30 Sep 2007 · 7,362 accessesView PDFCite
Research ArticleOpen accessIn the abstractLow Complexity Performance Effective Task Scheduling Algorithm for Heterogeneous Computing EnvironmentsE. Ilavarasan, P. ThambiduraiA heterogeneous computing environment is a suite of heterogeneous processors interconnected by high-speed networks, thereby promising high speed processing of computationally intensive applications with diverse computing needs. Scheduling of an application modeled by Directed Acyclic Graph (DAG) is a key issue when aiming at high performance in this kind of environment. The problem is generally addressed in terms of task … …Journal of Computer Science, Vol. 3, Issue 2 · 28 Feb 2007 · 9,668 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Analysis of Quality of Work Life (QWL) and Career- Related VariablesArafat Al-Dhaqm, LooSee Beh, Jegak Uli, Khairuddin IdrisThe aim of this study was to determine the level and relationship between qualities of work life (QWL) with career-related variables. The sample consists of 475 executives from the electrical and electronics industry in the free trade zones in Malaysia for both the multinational corporations (MNCs) and the small-medium industries (SMIs). The selection of respondents using stratified random sampling technique … …American Journal of Applied Sciences, Vol. 3, Issue 12 · 31 Dec 2006 · 9,277 accessesView PDFCite