Research ArticleOpen accessIn the abstractSMS for Question-Answering in the m-Learning ScenarioS. R. Balasundaram, B. RamadossEmerging technologies are leading to the development of several new opportunities to guide and enhance learning that were unimaginable a few years ago. The move towards adopting mobile learning technologies is fast growing in both academic and industrial sectors. Mobile learning uses portable devices linked to a commercial public network, including different types of mobile phones and handheld computers. For … …Journal of Computer Science, Vol. 3, Issue 2 · 28 Feb 2007 · 7,445 accessesView PDFCite
Research ArticleOpen accessIn the abstractLossless Compression Using LFSRsR. Muthiah, K. Neelakantan, Somi SebastianWhile lossy compression techniques are used for images, sound. where feature reproduction is more important than the actual data, it is necessary to use lossless compression for certain files containing data, programmes. Lossless compression techniques are not as effective as lossy ones and usually require a lot of computation for both compression and decompression. We presented a novel lossless compression … …Journal of Computer Science, Vol. 3, Issue 1 · 31 Jan 2007 · 6,999 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effects of Harmonic Components on Transformer Losses of Sinusoidal Source Supplying Non-Linear LoadsI. Daut, H. S. Syafruddin, Rosnazri Ali et al.An important consideration when evaluating the impact of harmonics is their effect on power system component and loads. Transformers are major components in power systems. The increased losses due to harmonic distortion can cause excessive losses and hence abnormal temperature rise. The measurement of iron losses and copper losses of single-phase transformers is important in particular for transformers feeding nonlinear … …American Journal of Applied Sciences, Vol. 3, Issue 12 · 31 Dec 2006 · 8,398 accessesView PDFCite
Research ArticleOpen accessIn the abstractComputer Simulator: An Educational Tool for Computer ArchitectureMihyar HessonThe great advancement in computer architecture and cache memory design and technology had a considerable influence on the way computer architecture was taught in universities. This requires students to be able to visualize the detailed activities that take place within a computer processor and its interaction with memory system. Computer simulators could effectively be used to enhance the understanding and … …American Journal of Applied Sciences, Vol. 3, Issue 11 · 30 Nov 2006 · 7,468 accessesView PDFCite
Research ArticleOpen accessIn the abstractRecovery and Germination of Grass Seeds Ingested by CattleFerhat GökbulakSeeds of bluebunch wheatgrass [Psuedoroegneria spicata (Pursh) A. Love] and Sandberg bluegrass (Poa secunda Presl.) were fed to Holstein heifers in different amounts to investigate the effects of seed feeding level and seed size on the recovery and germinability of passed seed. Animals were fed 60,000, 30,000,15,000, and 7,500 seeds of each species. Passed seeds were recovered from dungcollected daily … …OnLine Journal of Biological Sciences, Vol. 6, Issue 1 · 30 Jun 2006 · 6,752 accessesView PDFCite
Research ArticleOpen accessIn the abstractPredictive Autonomicity of Web Services in the MAWeS FrameworkEmilio P. Mancini, Massimiliano Rak, Roberto Torella, Umberto VillanoIn Web Services designs classical optimization techniques are not applicable. A possible solution to guarantee critical requirements is the use of an autonomic architecture, able to auto-configure and to auto-tune. This study presents MAWeS (MetaPL/HeSSE Autonomic Web Services), a framework whose aim is to support the development of self-optimizing predictive autonomic systems for Web service architectures. It adopts a simulation-based … …Journal of Computer Science, Vol. 2, Issue 6 · 30 Jun 2006 · 7,067 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrevalence, Types and Risk Factors for Malnutrition in Displaced Sudanese ChildrenNuha Mamoun, Susan Homedia, Mustafa Mabyou et al.The nutritional status of 327 under-five children living in Mayoo displacement camp, Khartoum, Sudan, was assessed during May- August 2004. Risk factors for protein-energy malnutrition (PEM) were also studied. According to WHO criteria, a total of 186 (56.1%) children had malnutrition, of these 101(30.1%), 43 (13.1%) and 42 (12.8%) were mildly, moderately and severely malnourished respectively. According to Welcome classification, … …American Journal of Infectious Diseases, Vol. 1, Issue 2 · 30 Jun 2006 · 7,670 accessesView PDFCite
Research ArticleOpen accessIn the abstractNew Proposed Second-Order ASDM Using OTAsFarouq M. Al TaweelIn this work, we present a new proposal for the second-order Adaptive Sigma Delta Modulation (ASDM). The new proposed Adaptation scheme is based on using Operational Transconductance Amplifier (OTAs) as an Integrator and as an Amplifier to adapt the quantizer step-size to control the voltage gain by feedback the quantizer output through adaptation scheme. The step-size is changing up or … …American Journal of Applied Sciences, Vol. 3, Issue 2 · 28 Feb 2006 · 6,950 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Impact of Applying IT and E-Learning in Economic Information SystemsJihad A.A.Abu Al SondosThe purpose of this study was to investigate the impact of using the E-learning approach as well as IT technologies in the teaching process of Economics Information System (EIS) course to graduate students. Also, this study concentrates on two trends, the first one related to the befits of using E-learning approach in teaching EIS. The benefits of this approach are: … …American Journal of Applied Sciences, Vol. 3, Issue 2 · 28 Feb 2006 · 6,712 accessesView PDFCite
Research ArticleOpen accessIn the abstractStability of Non-Neutral and Neutral Dynamic Switched Systems Subject to Internal DelaysM. De la Sen, J. L. Malaina, A. Gallego, J. C. SotoThis study deals with the quadratic stability and linear state-feedback and output-feedback stabilization of switched delayed linear dynamic systems with, in general, a finite number of non commensurate constant internal point delays. The results are obtained based on Lyapunov’s stability analysis via appropriate Krasovsky-Lyapunov’s functionals and the related stability study is performed to obtain both delay independent and delay dependent … …American Journal of Applied Sciences, Vol. 2, Issue 10 · 31 Oct 2005 · 6,720 accessesView PDFCite