Research ArticleOpen accessIn the abstractImprovement of the Vertical Dispersion of Pollutants Resulting From Chimneys by Thermosiphon EffectA. O.M. Mahmoud, J. Zinoubi, R. B. Maad, A. BelghithThe dispersion of pollutants, resulting from industrial chimneys, in the surrounding atmosphere made the interest in realizing emitting conditions appears. It also encourages the vertical dispersion of these pollutants. At a given wind velocity, the height of this dispersion is essentially a function of the thermal power and the flow rate at the chimney exit. To improve these qualities, we … …American Journal of Environmental Sciences, Vol. 2, Issue 2 · 30 Jun 2006 · 7,411 accessesView PDFCite
Research ArticleOpen accessIn the abstractNano TiO2 Deposited on Crude Mineral and the Photoactivity to the Degradation of ChloroformHaiyan Song, Hongfu Jiang, Xingqing Liu, Guangyao MengSupported TiO2 catalysts have increasingly attracted intention in recent years because of their potential application to photocatalytic degradation of organic pollutants in water and air. In this work, nano TiO2 particles deposited on crude nonmetallic mineral were prepared by a Sol-gel process, the photocatalyst for degradation of chloroform was tested and optimized with respect to TiO2 loading, catalyst dosage and … …American Journal of Environmental Sciences, Vol. 2, Issue 2 · 30 Jun 2006 · 7,374 accessesView PDFCite
Research ArticleOpen accessIn the abstractAdaptive Fault Tolerant Routing Algorithm for Tree-Hypercube MulticomputerQatawneh MohammadA Connected tree-hypercube with faulty links and/or nodes is called injured tree-hypercube. To enable any non faulty node to communicate with any other non faulty node in an injured tree-hypercube, the information on component failures has to be made available to non faulty nodes to route message around the faulty components. We proposed an adaptive fault tolerant routing algorithm for … …Journal of Computer Science, Vol. 2, Issue 2 · 28 Feb 2006 · 6,599 accessesView PDFCite
Research ArticleOpen accessIn the abstractE-Learning under WebCTZ. A. Al-Khanjari, N. S. Kutti, H. A. RamadhanWith the introduction of Web-Based Instruction (WBI) the traditional classroom-based higher education could be made more effective form of instruction. But the studies have shown the negative results[1]. On the other hand the distance education has derived the direct benefit of WBI through extending classroom instruction in online to reach every remote student. However researchers have identified reasons for the … …Journal of Computer Science, Vol. 1, Issue 4 · 31 Dec 2005 · 6,322 accessesView PDFCite
Research ArticleOpen accessIn the abstractActive Center of Islamic Dialogue CivilizationsEbrahim MoghimiIt is obvious that an essay have introduced about Dialogue Civilizations, at first must be start with a definition about it. Obviously, this simple definition is almost difficult. Defining of Dialogue Civilizations is complex and difficult as far as it need to a vast range of definitions. In this essay will argue that how ever definition of Dialogue Civilization is … …Journal of Social Sciences, Vol. 1, Issue 3 · 30 Sep 2005 · 6,988 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Semantic Cache Management Method in Mobile DatabasesShengfei Shi, Jianzhong Li, Chaokun WangIn mobile database systems, caching is a crucial way to improve the performance because a new query can be partially answered locally when the client is continuously moving around. Semantic caching has been paid much attention in traditional database systems. However, the methods of semantic cache management proposed in those systems are not suitable for mobile computing environment. Moreover, although … …Journal of Computer Science, Vol. 1, Issue 3 · 30 Sep 2005 · 6,882 accessesView PDFCite
Research ArticleOpen accessIn the abstractAccessing Applications from Multiple File Servers in a Computer NetworkJ. S.J. Daka, J. S. IsaacThis study proposes a technique of accessing applications from multiple file servers in a computer network that caters for a large user community. The technique is a step towards creating a computer network system that is simple to implement, scalable, easy to manage, transparent to the user and suitable for a university-type environment. The proposed technique has some features of … …Journal of Computer Science, Vol. 1, Issue 2 · 30 Jun 2005 · 6,767 accessesView PDFCite
Research ArticleOpen accessIn the abstractUltra Wide Band (UWB) Ad-hoc Networks: Review and TrendsRashid Saeed, Sabira Khatun, Borhanuddin M. Ali, Mohd K. AbduallahShort-range wireless systems have recently gained a lot of attention to provide seamless, multimedia communications around a user-centric concept in so called Wireless Personal Area Networks (WPAN). Ultra-Wide Band (UWB) technology presents itself as a good candidate for the Physical Layer (PHY) of WPAN, both for high and low data rate applications. Many ongoing developments of Ultra-Wide Band (UWB) system … …Journal of Computer Science, Vol. 1, Issue 1 · 31 Mar 2005 · 7,063 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhysics Models of Pronuclear Movements in EggsKang Cheng, Changhua ZouBased on published experimental data, Newton's laws, and Coulomb's law, we investigate natural and normal pronuclear movements in wild types of eggs and develop physics models to fit the experimental data quantitatively. The difference between our modeling calculated results and the experimental data is less than 20%. Our models explain why and how pronuclei move in even or in variant … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,747 accessesView PDFCite