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370 results for “2D Calculation”
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Research ArticleOpen accessIn the abstractMODELING OF PETROLEUM ENGINEERS DESIGN-TECHNOLOGICAL COMPETENCE FORMING IN PHYSICAL-MATHEMATICAL DISCIPLINES STUDYING PROCESSIlsiyar Mingatinovna Zaripova, Albina Rafisovna Shaidullina, Alla Evgenyevna Upshinskaya et al.The essence and contents of students’ project technical competence as a synthesis of design and technical competencies, including special knowledge, abilities, skills and personal qualities which are necessary for their future professional duties effective implementation, particular, for engineering projects successful implementation, requiring technical calculations performing and abilities, allowing to operate in professional activity effectively, to be guided in work situations … …American Journal of Applied Sciences, Vol. 11, Issue 7 · 19 Apr 2014 · 6,939 accessesView PDFCite
Research ArticleOpen accessIn the abstractREFLECTION OF A WEAK DISCONTINUITY OF THE AXIS AND THE PLANE OF SYMMETRYBulat Pavel ViktorovichIn this article we consider the problem of discontinuous characteristic (weak discontinuity) reflection from the axis and the plane of symmetry of the supersonic flow. There is a known problem of perturbations radial focusing when during numerical calculations reflection of a weak perturbation wave from the axis of symmetry leads to an abrupt change in the distribution of dynamics variables … …American Journal of Applied Sciences, Vol. 11, Issue 6 · 17 Apr 2014 · 6,537 accessesView PDFCite
Research ArticleOpen accessIn the abstractESTIMATIONS OF TOTAL MASS AND ENERGY OF THE OBSERVABLE UNIVERSEDimitar ValevThe recent astronomical observations indicate that the expanding universe is homogeneous, isotropic and asymptotically flat. The Euclidean geometry of the universe enables to determine the total gravitational and kinetic energy of the universe by Newtonian gravity in a flat space. By means of dimensional analysis, we have found the mass of the observable universe close to the Hoyle-Carvalho formula M∼c3/(GH). … …Physics International, Vol. 5, Issue 1 · 21 Mar 2014 · 17,715 accessesView PDFCite
Research ArticleOpen accessIn the abstractTHE EFFECT OF VENTILATION AND ECONOMIZER ON ENERGY CONSUMPTIONS FOR AIR SOURCEHEAT PUMPS IN SCHOOLSNihal Al Raees, Nabil Nassif, Fouad Al RifaieThe study discusses the applications of CO2-based demand-controlled ventilation DCV strategy integrated with the economizer for air source heat pumps in schools, investigates their impact on the annual heating, cooling and total energy consumption, also determines the potential savings achieved in different USA locations. The study includes detailed energy analysis on an existing middle school through whole building simulation energy … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 1 · 18 Mar 2014 · 8,390 accessesView PDFCite
Research ArticleOpen accessIn the abstractEVALUATION OF THE ADEQUACY OF THE WIND SPEED EXTRAPOLATION LAWS FOR TWO DIFFERENT ROUGHNESS METEOROLOGICAL SITESDalila Khalfa, Abdelouaheb Benretem, Lazher Herous, Issam MeghlaouiIncreasing knowledge on wind shear models to strengthen their reliability appears as a crucial issue, markedly for energy investors to accurately predict the average wind speed at different turbine hub heights and thus the expected wind energy output. This is particularly helpful during the feasibility study to abate the costs of a wind power project. The extrapolation laws were found … …American Journal of Applied Sciences, Vol. 11, Issue 4 · 1 Feb 2014 · 7,445 accessesView PDFCite
Research ArticleOpen accessIn the abstractINVESTIGATION OF THE GROUNDWATER SUITABILITY FOR IRRIGATION PRACTICES IN AN ARID REGION: CASE STUDYAhmed MuradGroundwater is an important source of acceptable water for irrigation in the arid regions and in particular in the United Arab Emirates (UAE). Demand for groundwater is increasing in the UAE due to population growth and significant economic advancement associated with political stability. As agricultural practices are the main land use in Al Hayer area, southeast UAE, majority of extracted … …American Journal of Environmental Sciences, Vol. 10, Issue 1 · 25 Jan 2014 · 7,428 accessesView PDFCite
Research ArticleOpen accessIn the abstractTHORIA EHANCEMENT OF NUCLEAR REACTOR SAFETYBarbara Szpunar, Jerzy SzpunarThe recent nuclear accident in Fukushima demonstrates that a nuclear mishap should be viewed using interdisciplinary tools. For example, the urania fuel melts not only because of enhanced neutron flux but also because its thermal conductivity degrades when it oxidizes. Here we present the application of first principles calculations to evaluate the structural, mechanical and thermal properties of traditional urania … …Physics International, Vol. 4, Issue 2 · 20 Dec 2013 · 7,640 accessesView PDFCite
Research ArticleOpen accessIn the abstractPetrochemical Supply Chain’s Share in Emission of Green House Gases, Case Study: Shazand Petrochemical ComplexNaser Moharamned, Masoud Aghajani, Faride Atabi, Sahar AzarkamandIn this study petrochemical supply chain shares in global warming is studied by monitoring carbon footprint during manufacturing and distribution phase. For identification and measurement of carbon emissions in petrochemical supply chain, at first step necessary data are collected. Then carbon footprint is calculated in manufacturing process. So GHG is measured during fossil fuel use for chemical productions and electricity … …American Journal of Environmental Sciences, Vol. 9, Issue 4 · 28 Aug 2013 · 7,034 accessesView PDFCite