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431 results for “pressure”

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Research ArticleOpen accessIn the abstractEffect of Cycle Duration and Phasing on Thermomechanical Fatigue of Dog-Bone Specimens Made form SteelAchegaf Zineb, Khamlichi Abdellatif, Francisco Mata CabreraProblem statement: Lifetime of standard dog-bone specimens made form steel as affected by phasing between thermal cycles and strains cycles and by cycle duration in thermomechanical fatigue is assessed under various conditions of loading. Approach: The methodology used was based on finite element post-processing analysis by specialized fatigue software package that takes into account coupling of damage from three primary … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 30 Nov 2010 · 7,697 accessesView PDFCite
Research ArticleOpen accessIn the abstractBioengineering Assessment on Sloppy GroundMu'azu Mohammed Abdullahi, Nazri Bn Ali, Kamarudin Bn Haj AhmedProblem statement: Soft engineering solution of sloppy surface utilizes mechanical and hydrological effects of vegetation. The hydrological effects driven by transpiration, induces an increase in matric suction and consequently tension also increase along with the decrease of moisture. Therefore once the horizontal stress of the soil exceeds the limit of tensile strain of the soil cracks occurs. Approach: The negative … …American Journal of Environmental Sciences, Vol. 6, Issue 4 · 31 Aug 2010 · 7,242 accessesView PDFCite
Research ArticleOpen accessIn the abstractMarketing Strategies in Port Industry: An Exploratory Study and a Research AgendaAngelos M. Pantouvakis, C.I. Chlomoudis, Athanasios G. DimasProblem statement: Market globalization increases demand and the competition between firms. Ports as basic figurative nodes cannot remain separate from this change. Technological improvements, the increased demand of marine transports, the demand for new, bigger and more specialized vessels, has increased the competition among ports. Approach: In this competitive environment business mistakes may be proved fatal and marketing strategies arise … …American Journal of Economics and Business Administration, Vol. 2, Issue 1 · 31 Mar 2010 · 8,730 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpiral Wound Reverse Osmosis Membranes for the Recovery of Phenol Compounds-Experimental and Parameter Estimation StudiesG. Srinivasan, S. Sundaramoorthy, D.V.R. MurthyProblem statement: Reverse osmosis is increasingly used as a separation technique in chemical and environmental engineering for the removal of organics and organic pollutants present in waste water. The removal of an organic compound, namely phenol, using a polyamide membrane was investigated in this study. Waste water containing phenol present a serious environmental problem and increasing attention is being given … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 1 · 31 Mar 2010 · 9,304 accessesView PDFCite
Research ArticleOpen accessIn the abstractEngineering of Ground for Liquefaction Mitigation Using Granular Columnar Inclusions: Recent DevelopmentsA. Murali Krishna, M.R. MadhavProblem statement: Liquefaction was the most hazardous damage during an earthquake. Ground improvement techniques were employed to mitigate liquefaction hazards. Most common methods to improve engineering properties of soils are densification, reinforcement, grouting/mixing and drainage. Among various remedial measures available, installation of columnar granular inclusions is the most widely adopted method for liquefaction mitigation. Approach: Columnar granular inclusions function as … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 3 · 30 Sep 2009 · 7,736 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of Environmental Management Systems in the Extraction of Construction Aggregates from Gravel Pit LakesSerena Botta, Claudio Comoglio, Alberto Quaglino, Andrea TorchiaProblem statement: Mining operations are strategic and essential industrial activities which rely on the use of non renewable natural resources, causing several relevant interactions with the environment. Approach: The need to perform in compliance with even more stringent environmental legislation and to satisfy different stakeholders demands and pressures, is progressively leading the mining sector towards the implementation of Environmental Management … …American Journal of Environmental Sciences, Vol. 5, Issue 4 · 31 Aug 2009 · 7,320 accessesView PDFCite
Research ArticleOpen accessIn the abstractDensity Equation of Bio-Coal Briquettes and Quantity of Maize Cob in Phitsanulok, ThailandPatomsok WilaiponOne of the most important crops in Phitsanulok, a province in Northern Thailand, is maize. Base on the calculation, the quantity of maize cob produced in this region was approximately 220 kton year-1. The net heating value of maize cob was found to be 14.2 MJ kg-1. Therefore, the total energy over 874 TJ year-1 can be obtained from this … …American Journal of Applied Sciences, Vol. 5, Issue 12 · 31 Dec 2008 · 7,891 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Private Sector's Role in limiting unemployment in JordanKhaled M.M.Abu AliqahThis study is aimed to define unemployment, and private sector, to know more about both, and to study the role of the private sector in limiting unemployment in Jordan in special. In a particular year the level of unemployment is determined by the level of aggregate demand for the goods and services which a country produces .if demand higher this … …Journal of Social Sciences, Vol. 4, Issue 1 · 31 Mar 2008 · 7,203 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Study On An Intermediate Temperature Solid Oxide Fuel Cell (IT-SOFT) Fabricated By Dry Pressing MethodA. Rifau, Z. Zainal, D. Mutharasu et al.An intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed by using the dry pressing method. Widely studied materials were used for anode and cathode and SDC based electrolyte was used in this study. The cells were fabricated by dry-pressed at different pressures using a die without any binding material, a known amount of three electrode materials in powder … …American Journal of Applied Sciences, Vol. 3, Issue 9 · 30 Sep 2006 · 6,968 accessesView PDFCite
Research ArticleOpen accessIn the abstractCodesign Methodology of Real-time Embedded Controllers for Electromechanical SystemsSlim Ben Saoud, Andreas Gerstlauer, Daniel D. GajskiUnder increasing time-to-market pressures in the electric drives industries, the development time of new algorithms and new control systems including their debugging time must be minimized. This requirement can be satisfied only by using a well-defined system-level design methodology and by reducing the migration time between the algorithm development language and the hardware specification language. In this study, we propose … …American Journal of Applied Sciences, Vol. 2, Issue 9 · 30 Sep 2005 · 6,444 accessesView PDFCite