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Research ArticleOpen accessIn the abstractComparative Study of Performance in Cryptography Algorithms (Blowfish and Skipjack)Ali Ahmad Milad, Hjh Zaiton Muda, Zul Azri Bin Muhamad Noh, Mustafa Almahdi AlgaetProblem statement: The main goal guiding the design of any encryption algorithm needs to be secured against unauthorized attacks. For all applied applications, performance and the cost of implementations are also important concerns. A data encryption algorithm would not be of much use if it is secure enough but slow in performance because it is a common repetition to embed … …Journal of Computer Science, Vol. 8, Issue 7 · 7 Jul 2012 · 8,021 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Interaction between Congestion-Control Based Transport Protocols and Manet Routing ProtocolsKhuzairi Mohd Zaini, Adib M. Monzer Habbal, Fazli Azzali et al.Problem statement: Although many efforts have been done on studying the behaviour of TCP in MANET, but the behaviour of TFRC remain unclear in MANET. The purpose of this research is two folds. First, we studied the behaviour of TFRC and TCP over AODV and DSR as the underlying routing protocols in terms of throughput, delay and jitter. The second … …Journal of Computer Science, Vol. 8, Issue 4 · 28 Jan 2012 · 7,160 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffective Utilization of Multicore Processor for Unified Threat Management FunctionsSudhakar Gummadi, Radhakrishnan ShanmugasundaramProblem statement: Multicore and multithreaded CPUs have become the new approach for increase in the performance of the processor based systems. Numerous applications benefit from use of multiple cores. Unified threat management is one such application that has multiple functions to be implemented at high speeds. Increasing performance of the system by knowing the nature of the functionality and effective … …Journal of Computer Science, Vol. 8, Issue 1 · 29 Oct 2011 · 8,149 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Multiple Input Multiple Output (MIMO) System Capacity with Spatial CorrelationsT. Gunasekaran, K. R. Shankar KumarProblem statement: Today’s wireless technologies just won’t get us to the hyper connectivity of uninterrupted access from any mobile device with unlimited bandwidth at real-time speeds. This is due to the low data throughput and scarcity in spectrum. Approach: Under the condition of uncorrelated antenna elements, capacity of the Multiple Input Multiple Output (MIMO) system can be increased linearly with … …Journal of Computer Science, Vol. 7, Issue 10 · 4 Aug 2011 · 8,117 accessesView PDFCite
Research ArticleOpen accessIn the abstractStatic and Dynamic Performance Improvement of Conventional Computer Numerical Control Machine Tool Bed with Hybrid Welded SteelS.S. Abuthakeer, P.V. Mohanram, G. MohankumarProblem statement: The advancements in machine tools to maximize the production by increasing spindle speeds have caused vibration in machine tools. The two functional requirements of machine tool bed for machine tools are high structural stiffness and high damping, which cannot be satisfied simultaneously if conventional metallic materials such as cast iron are employed. Hence there is a need to … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 11,486 accessesView PDFCite
Research ArticleOpen accessIn the abstractInteractive Computing Framework for Engineering ApplicationsJovana Knezevic, Jerome Frisch, Ralf-Peter Mundani, Ernst RankProblem statement: Even though the computational steering state-of-the-art environments allow users to embed their simulation codes as a module for an interactive steering without the necessity for their own expertise in high-performance computing and visualisation, e.g., these environments are limited in their possible applications and mostly entail heavy code changes in order to integrate the existing code. Approach: In this … …Journal of Computer Science, Vol. 7, Issue 5 · 7 May 2011 · 7,214 accessesView PDFCite
Research ArticleOpen accessIn the abstractColored Image Compression Using Gradient Adjustment Prediction Based WaveletMuna Faik Hanoon Al-SammraieProblem statement: Uncompressed graphics, audio and video data require considerable storage capacity and transmission bandwidth. Despite rapid progress in mass-storage density, processor speeds and digital communication system performance, demand for data storage capacity and data transmission bandwidth continues to outstrip the capabilities of available technologies. The recent growth of data intensive digital audio, image and video (multimedia) based web applications, … …Journal of Computer Science, Vol. 7, Issue 2 · 25 Feb 2011 · 7,312 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Fast Hybrid Algorithm for the Exact String Matching ProblemAbdulwahab Ali Al-mazroi, Nur’Aini Abdul RashidProblem statement: Due to huge amount and complicated nature of data being generated recently, the usage of one algorithm for string searching was not sufficient to ensure faster search and matching of patterns. So there is the urgent need to integrate two or more algorithms to form a hybrid algorithm (called BRSS) to ensure speedy results. Approach: This study proposes … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 31 Jan 2011 · 8,246 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Race Distance on Physical, Hematological and Biochemical Parameters of Endurance HorsesLawan Adamu, Noraniza Mohd Adzahan, Rasedee Abdullah, Bashir AhmadProblem statement: Endurance horses are generally exposed to severe stress during endurance competitions. These horses are however conditioned to cover the long distances of the competitions at moderate speeds. Approach: This study was conducted in Malaysia to determine the post-race hematological, blood electrolyte and biochemical and physical parameters of horses of 40, 80 and 120 km endurance race categories and … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 4 · 27 Dec 2010 · 9,167 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Two-Dimensional Wave Prediction Model Along the Best Track of Typhoon Linda 1997Worachat Wannawong, Usa W. Humphries, Prungchan Wongwises et al.Problem statement: A two-dimensional wave prediction model along the best track of Typhoon Linda 1997 was interested to study the impact of typhoon wind-wave characteristics. The dynamical wave model with deep water condition was used to predict the wave height (Hs) of Typhoon Linda before and after entering into the Gulf of Thailand (GoT). Approach: The standard one-way nested grid … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 7,246 accessesView PDFCite