Research ArticleOpen accessIn the abstractSimulation Model of Brushless Excitation SystemAhmed N. Abd AllaExcitation system is key element in the dynamic performance of electric power systems, accurate excitation models are of great importance in simulating and investigating the power system transient phenomena. Parameter identification of the Brushless excitation system was presented. First a block diagram for the EXS parameter was proposed based on the documents and maps in the power station. To identify … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 7,522 accessesView PDFCite
Research ArticleOpen accessIn the abstractTowards Two-tier Universalism? A Discussion of the Welfare PrincipleCatharina Juul KristensenIn this study the common political discourse on the ‘challenge of immigration’ to the Danish welfare state is turned on its head. Instead of focusing on the costs and difficulties of immigration, the focus is first upon the challenge that recent policies on immigration and integration constitute to the principle of universalism; and second upon the ability of the principle … …Journal of Social Sciences, Vol. 3, Issue 2 · 30 Jun 2007 · 7,516 accessesView PDFCite
Research ArticleOpen accessIn the abstractBuilding an e-Government e-Trust InfrastructureHussein Al- Omari, Ahmed Al- OmariThis paper presents a Trust Model for e-Government implementation. In the first part of the paper, the trust definition from different points of view (psychology, philosophy, linguistic, sociology, and mathematics) was presented. Most people think that to build trust between the government and its customers or citizens, one must start by implementing IT Security and some kinds of Customer Relationship … …American Journal of Applied Sciences, Vol. 3, Issue 11 · 30 Nov 2006 · 7,281 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn Optimistic Concurrency Control for Real-Time Database SystemsAmer A. AliThe performance of database transaction processing system can be profoundly affected by the concurrency control method employed since it is necessary to preserve database integrity in a multi-user environment. In addition to satisfying the consistency requirement as in traditional database system, real-time database systems must also satisfy timing constraints. In this study we present a virtual run policy for the … …American Journal of Applied Sciences, Vol. 3, Issue 2 · 28 Feb 2006 · 6,901 accessesView PDFCite