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370 results for “2D Calculation”
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Research ArticleOpen accessIn the abstractComputing Evaporanspiraton from Weather Data Obtained from Distant, Non-Reference Weather Stations in a Hyper-Arid RegionElNesr Mohammad Nabil, Alazba Abdurrahman AliProblem statement: Reference agro-climatic Weather Stations (WS) are rarely found in newly reclaimed areas. The usage of weather data from non-reference WS may lead to inaccurate estimations of Evapo Transpiration (ET), especially if the non-reference stations are distant from the reclaimed location. Approach: Weather data from four WS located at Riyadh were used to calculate ET by using Penman Monteith … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 3 · 27 Sep 2011 · 7,690 accessesView PDFCite
Research ArticleOpen accessIn the abstractIntrahydrogen Bonding and Transition States Between Enol and Enethiol Tautomers in β-ThioxoketonesBahjat A. Saeed, Rita S. Elias, Ebraheem Abdu MusadProblem statement: Hydrogen bonding is one of the most important concepts in chemistry because it is crucial to understand many different interactions both in gas phase and in condensed media. A particular subset is presented by the intramolecular hydrogen bonds where two ends of the same molecule interact, resulting in a ringlike structure. Approach: The study involved theoretical investigation of … …American Journal of Applied Sciences, Vol. 8, Issue 8 · 18 Jul 2011 · 7,452 accessesView PDFCite
Research ArticleOpen accessIn the abstractIterative Process to Improve Simple Adaptive Subdivision Surfaces Method for Triangular MeshesNoor Asma Husain, Mohd Shafry Mohd Rahim, Abdullah BadeProblem statement: Subdivision surfaces were applied to the entire meshes in order to produce smooth surfaces refinement from coarse mesh. Several schemes had been introduced in this area to provide a set of rules to converge smooth surfaces. However, to compute and render all the vertices are really inconvenient in terms of memory consumption and runtime during the subdivision process. … …Journal of Computer Science, Vol. 7, Issue 7 · 30 Jun 2011 · 6,926 accessesView PDFCite
Research ArticleOpen accessIn the abstractRepower and Evaluation of New Power of Synchronous GeneratorsS.P.Y. Santos, E. Delbone, E.F. Carvalho, L.N. MartinsProblem Statement: Useful life of winding isolation is about 30 years. It can be reduced when it is submitted to overloads or when it is worked in aggressive environments. Approach: When retrofit is done, an increasing to superior isolation class is recommendable. So, generator capacity can be increased and pay back could be excellent justifying the investment. Result: Several Brazilian’s … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 6,800 accessesView PDFCite
Research ArticleOpen accessIn the abstractResearch on the Decision Model for Self-Production and Outsourcing Choices under Limited Production CapacityYu-Teng Chang, Chih-Yao LoProblem statement: In the face of competitive environments with uncertain demands and a trend toward High-Mix, Low-Volume (HMLV) production, self-production or direct outsourcing has troubled decision-makers of enterprise for a long time. In the previous studies, not much has been written about the topic. Approach: Therefore, this study applies the Analytic Hierarchy Process (AHP) to investigate the topic through either … …Journal of Mathematics and Statistics, Vol. 7, Issue 2 · 25 May 2011 · 7,141 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Application of Univariate Statistics to Hotelling's T2Dr. A. PolymenisProblem statement: Hotelling's T2 statistic has been well documented in the existing literature and exact as well as asymptotic results have been obtained. In the present article, we focus on an important particular case of T2 and we note that, there is no clear way to show, how univariate results, used in the theory of Student’s t statistic, could be … …Journal of Mathematics and Statistics, Vol. 7, Issue 1 · 25 Mar 2011 · 7,660 accessesView PDFCite
Research ArticleOpen accessIn the abstractBonding Property of Bituminous Crack Sealants in the Presence of WaterEllie Fini, Taher Abu-LebdehProblem statement: Crack sealing and filling is the most widely used maintenance activity for in-service pavements. If an appropriate sealant material is selected and properly installed at the appropriate time of the pavement life, it retards pavement deterioration and increases its service life at a relatively low cost. However, in some cases it is reported that sealants failed prematurely, mainly … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 12 Mar 2011 · 8,338 accessesView PDFCite
Research ArticleOpen accessIn the abstractSimulation of a 10 kW Photovoltaic System in Areas with High Solar IrradiationIssa Etier, Mohammad Ababneh, Anas Al TarabshehProblem statement: This study investigates the design and the simulation of a 10 kW photovoltaic (PV) system in areas of high solar irradiation. The importance of this study is to explore the feasibility of connecting the PV system with a grid to generate electricity at campus of Hashemite University (Jordan) whose yearly global irradiation is 2000 kWh/m2. Approach: In order … …American Journal of Applied Sciences, Vol. 8, Issue 2 · 28 Feb 2011 · 9,320 accessesView PDFCite
Research ArticleOpen accessIn the abstractVedas and the Development of Arithmetic and AlgebraGurudeo Anand TularamProblem statement: Algebra developed in three stages: rhetorical or prose algebra, syncopated or abbreviated algebra and symbolic algebra-known as “school algebra”. School algebra developed rather early in India and the literature now suggests that the first civilization to develop symbolic algebra was the Vedic Indians. Approach: Philosophical ideas of the time influenced the development of the decimal system and arithmetic … …Journal of Mathematics and Statistics, Vol. 6, Issue 4 · 31 Dec 2010 · 8,263 accessesView PDFCite
Research ArticleOpen accessIn the abstractMoments of Order Statistics from Nonidentically Distributed Three Parameters Beta typeI and Erlang Truncated Exponential VariablesA. A. Jamjoom, Z. A. AL-SaiaryProblem statement: Moments of order statistics of independent non-identically distributed (INID) random variables is not an easy subject to deal with for continuous distributions. One is forced to use messy algebraic calculations (whether one uses permanents or not). This was the motivation behind this study. In this study the moments of order statistics arising from independent nonidentically distributed three parameters … …Journal of Mathematics and Statistics, Vol. 6, Issue 4 · 31 Dec 2010 · 7,373 accessesView PDFCite