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120 results for “SIS”
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Research ArticleOpen accessIn the keywordsSocial Interactions for Academic Purposes in Literature Classes for Non English SpeakersAi Chun YenProblem statement: This study reports how Learning Communities (LCs) and Online Learning Communities (OLCs) can improve Taiwanese EFL students’ lack of Social Interactions (SIs) and acdemic skills in literature classes (Y1, N = 40) by involving freshmen in a social process that encourages student-student and student-instructor discussion, interpretation, production and negotiation. Approach: The data collected from the database of the … …Journal of Social Sciences, Vol. 8, Issue 3 · 16 Jul 2012 · 7,276 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Novel Database Design for Student Information SystemNoraziah Ahmad, Nawsher Khan, Ahmed N. Abd Alla, Abul Hashem BegProblem statement: A new system designed, where necessary and alternative solutions given to solve the different problems and the most feasible solution were selected. Approach: This study presents the database design for student information system. Computerization of a system means to change it from a manual to a computer-based, system to automate the work and to provide efficiency, accuracy, timelessness, … …Journal of Computer Science, Vol. 6, Issue 1 · 31 Jan 2010 · 8,718 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPeak-to-Average Power Ratio Reduction Using Active Constellation Extension-Projection Onto Convex Sets Combined with Particle Swarm Optimization Added to Space Time Bloc Coding in Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing SystemAhmed Ouqour, Abdelhamid Louliej, Younes Jabrane et al.When generated Orthogonal Frequency Division Multiplexing (OFDM) signal is transmitted through a number of antennas in order to achieve diversity or cap any gain (higher transmission rate) then it is known as Multiple Input Multiple Output (MIMO)-OFDM. The full form of MIMO is multi input and multi output where signals are transmitted via multiple antennas instead of only one antenna … …Journal of Computer Science, Vol. 8, Issue 12 · 12 Dec 2012 · 6,989 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMultiple Input Multiple Output System with Space Time Block Coding and Orthogonal Frequency Division MultiplexingP. Ramesh Kumar, R. M.S. ParvathiProblem statement: A large amount of research has been performed to achieve very high data rate networks to support reliable transmission of video, data and speech at high rates to many users. One way to increase the data rate in a wireless system is to use multiple transmit and/or receive antennas (MIMO structure). Indeed, it has been shown that the … …Journal of Computer Science, Vol. 8, Issue 4 · 26 Jan 2012 · 6,759 accessesView PDFCite