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99 articles for “E-R diagram”
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Research ArticleOpen accessIn the abstractThe Lateral Reaction of a Deformable Inclined Surface on a Wheel with an Elastic TrunkSayel M. Fayyad, Suleiman Abu-Ein, Waleed MomaniProblem statement: This study is concerned with a very important problem belonging in the effects of deformable inclined surfaces on a wheel with an elastic trunk. These effects can be represented by two effects: A lateral withdrawal of the trunk and lateral shift of the ground. Also this study aims to study these effects and analyze them mathematically to find … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,032 accessesView PDFCite
Research ArticleOpen accessIn the abstractFuzzy Reliability and Fuzzy Availability of the Serial Process in Butter-Oil Processing PlantKuldeep Kumar, Jai Singh, Pawan KumarProblem statement: The purpose of this study was to compute fuzzy reliability and fuzzy availability of the serial process in butter-oil processing plant for various choices of failure and repair rates of sub-system. This plant consists of eight sub-systems out of which two are supported by stand-by units with perfect switch over devices and considered that these two sub-systems never … …Journal of Mathematics and Statistics, Vol. 5, Issue 1 · 31 Mar 2009 · 8,016 accessesView PDFCite
Research ArticleOpen accessIn the abstractSimulation Planning for Sustainable Use of Land Resources: Case study in DiamouDiallo Yacouba, Hu Guangdao, Abdurazak Hussien AbdulahiIn this study, we presented the simulation planning scheme to project land and land resources use changes at a local scale for Diamou (MALI). Problem statement: All the land cover types were under the influence of human and livestock population. Diamou has undergone changes in land-cover over the last decades. The shifting cultivation system practiced was probably the main reason … …Journal of Mathematics and Statistics, Vol. 5, Issue 1 · 31 Mar 2009 · 7,663 accessesView PDFCite
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 · 7,528 accessesView PDFCite
Research ArticleOpen accessIn the abstractSystem Availability in the Presence of Estimating Common-cause Time-varying Failure RatesM. A. El-Damcese, Kh. A. Abd AlttifThis study presents a method for calculating the availability of a system depicted by availability block diagram, with identically distributed components, in the presence of estimating common cause hazard, we use the Marshall and Olkin formulation of the multivariate exponential distribution. That is, the components are subject to failure by Poisson failure processes that govern simultaneous failure of a specific … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,733 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn the Optimum Numbers of Stages in Vapour Compression Refrigeration SystemsDurriye Bilge, Galip TemirIn this study, cases of single-stage and multi-stage compression have been compared and contrasted through various angles while concentrating on refrigeration systems with 600 kW cooling capacity and working with ammonia. For five different numbers of stages, power consumption, costs of investment, operation and maintenance (O and M), COP and 2nd law efficiencies have been calculated. As the amount of … …American Journal of Applied Sciences, Vol. 1, Issue 2 · 30 Jun 2004 · 6,691 accessesView PDFCite
Research ArticleOpen accessIn the abstractMERAKI: An Online Collaborative Learning Platform Developed Using the UWE MethodologyPercy De-la-Cruz-VdV, Yesenia Torres-Donayre, Hugo Vega-Huerta et al.In the digital era, education has evolved with the integration of technologies that optimize the teaching-learning process. This article presents the need for more efficient online collaborative environments that overcome the limitations of traditional platforms, fostering meaningful interaction between students and teachers. To address this need, the collaborative platform “MERAKI” was developed using the UML-Based Web Engineering (UWE) methodology. This … …Journal of Computer Science, Vol. 21, Issue 12 · 10 Jan 2026 · 2,149 accessesView PDFCite
Technical ReportOpen accessIn the abstractInduction Clutch with the Ability to Generate Electricity, Brake, Start Fuel Engine and Electric EngineSeyed Ali Akbar MousaviThe induction clutch is a device that acts like a friction clutch but there is no abrasion and it is more accurate. Because electric, solar, and fuel car convertible to boats, vertical aircraft flying supersonic has sealed body, for this reason, a friction clutch cannot be used, because the friction clutch does not work well and due to friction, it … …Journal of Aircraft and Spacecraft Technology, Vol. 7, Issue 1 · 31 Aug 2023 · 6,586 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenetic State of Pulsatilla Patens (L.) Mill. Coenopopulations Based on DNA LabelingRustem Saltanovich Beishov, Gulnar Sultangazina, Indira Saltanovna Beishova et al.In the article, the results of studying the gene pools of the Kazakhstan coenopopulations of a rare plant species Pulsatilla patens (L.) Mill. are shown. The biomaterial taken from five coenopopulations located in Northern Kazakhstan has been used as samples. To identify the multilocus DNA polymorphism, the authors have used ISSR (Inter Simple Sequence Repeats, or intermicrosatellite analysis) labeling. The … …OnLine Journal of Biological Sciences, Vol. 21, Issue 1 · 2 Apr 2021 · 5,946 accessesView PDFCite
Review ArticleOpen accessIn the abstractMechatronics Around the World - at a GlanceRachita Sharma, Bhaskar DhimanIncreasing performance standards for complex procedures, which includes business equipment and their steadily growing technical importance, might require new processes to be applied within the procedure of product advent. The important thing concept in the back of our proposed approach is to combine one of a kind stages consisting of design, simulation and physical implementations in product or device advent. … …Journal of Mechatronics and Robotics, Vol. 5, Issue 1 · 12 Feb 2021 · 7,809 accessesView PDFCite