26 results for “Controlled Experiments”

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Research ArticleOpen accessIn the abstractEffects of Aspect Ratios and Number of Meandering Turns on Performance Limit of an Inclined Closed-Loop Oscillating Heat PipeN. Panyoyai, P. Terdtoon, P. SakulchangsatjataiProblem statement: The purpose of this research was to determine the effects of aspect ratios and number of meandering turns on performance limit of an inclined closed-loop oscillating heat pipe. Approach: The Closed-Loop Oscillating Heat Pipe (CLOHP) was made of a long copper capillary tube. The geometrical sizes, which were the variable parameters of this study, were as follows; the … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 8,081 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSoil Quality of Die off and Die Back Mangrove Grown at Al-Jubail Area (Saudi Arabia) of the Arabian GulfAkram Ali, Ahmed Alfarhan, Ernest Robinson, Wafa AltesanThe declining mangrove vegetation along the Arabian Gulf coast necessitates a thorough study for finding out the soil status and for rehabilitating the affected population. In this study, soil supporting die back/die off mangrove plants at Al-Jubail area was studied. Field experiments were also conducted to determine the success/failure ratio of the germinated seeds in both healthy and damaged soils. … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,617 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEfficient Physical Organization of R-Trees Using Node ClusteringF. Sagayaraj Francis, P. ThambiduraiR-Tree is a multidimensional indexing structure that forms basis for all the multidimensional indexing structures based on data partitioning. A number of attempts have been made in the past to improve the performance of R-Tree by manipulating the tree parameters and the data parameters. But hardly any attempt had been made to use external parameters such as disk parameters to … …Journal of Computer Science, Vol. 3, Issue 7 · 31 Jul 2007 · 6,627 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPersonal Exposure to PM2.5 in the Various Microenvironments as a Traveler in the Southeast Asian CountriesSemih Ozler, Karoline K. Johnson, Michael H. Bergin, James Jay SchauerAir pollution has become a pressing issue in today’s society because of its significant effects on humans, animals, plants, air quality, climate and the wider environment. Most urban areas are associated with one or more air pollutants which are emitted from local or regional pollution sources including vehicle exhausts, fossil fuels using in energy production, emissions from industrial and mining … …American Journal of Environmental Sciences, Vol. 14, Issue 4 · 27 Oct 2018 · 9,274 accessesView PDF Cite

EditorialOpen accessIn the abstractRECENT TRENDS AND CHALLENGES OF ENERGY EFFICIENT AND SUSTAINABLE BUILDINGSChiara BedonAccording to several studies (e.g., the Intergovernmental Panel on Climate Change (IPCC, 2014), the US Energy Information Administration (US EIA, 2014), warming of the climate system is unequivocal and mainly derives from greenhouse gas emissions due to human activities. Global Carbon Dioxide (CO2) emissions from fossil fuels, for example, are estimated to be 29% higher in 2035 than they were … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 3 · 11 Sep 2014 · 8,497 accessesView PDF Cite

Research ArticleOpen accessIn the abstractANTIOPHIDIAN ACTIVITY OF BROSIMUM GUIANENSE (AUBL) HUBERJose Adolfo Homobono Machado Bittencourt, Nayana Keyla Seabra de Oliveira, Maxwell Santos Cabral et al.Snakebites envenomations are a problem public health in worldwide due to the high rates of morbidity and mortality. The Bothrops venom causes local tissue damage and inflammation is one of the most important events that occur. At present, effective treatment for snakebites is serum therapy with antivenom, which neutralizes systemic alterations but does not prevent local damage that can cause … …American Journal of Pharmacology and Toxicology, Vol. 9, Issue 2 · 13 May 2014 · 7,784 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSpace Requirements to Optimize Welfare and Performance in Group Housed Pigs-A ReviewAlexandra L. Whittaker, William H. Van Wettere, Paul E. HughesProblem statement: In most countries of the world where there are legislation or guidelines pertaining to the commercial farming of domestic swine, figures are quoted for minimum space allocation for various ages and life stages of the animals. These figures are generally based on professional judgment and are in common usage, but there is a growing trend and an expectation … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 2 · 4 Jun 2012 · 8,787 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Comparison of Spectrophotometric Method and High-Performance Liquid Chromatography in Photosynthetic Pigments AnalysisSabina Jodłowska, Adam LatałaProblem statement: Spectrophotometric method and High-Performance Liquid Chromatography (HPLC) are the most useful tools to photosynthetic pigments analysis. The main objective of this reaserch was to compere the results obtained by these two independent methods in experiments under controlled laboratory conditions. Approach: Comparison between spectrophotometric and HPLC methods for pigment analysis was carried out on Baltic cyanobacterium Geitlerinema amphibium, which … …OnLine Journal of Biological Sciences, Vol. 11, Issue 2 · 30 Sep 2011 · 10,865 accessesView PDF Cite

Research ArticleOpen accessIn the abstractStudy of Electronic Properties of Metal-Insulator-Metal Structures for Fabrication of Cold CathodesHossein Ghaforyan, Majid EbrahimzadehProblem statement: The electrical properties of thin film structures consisting of metalinsulator- metal sandwiches are important in electronic devices. Approach: The electrical properties of thin film structures consisting of metal-insulator-metal sandwiches are investigated in this experimental work. Results: We are discussed of the electroformed metal-insulator-metal structures Au-MgF2-Au and comparison with other Au-SiO/CeF3-Au, Cu-CeF3-Cu, Cu-SiO-Cu, Au-CeF3-Au specimens. There explains various properties … …Physics International, Vol. 1, Issue 2 · 12 Aug 2011 · 7,751 accessesView PDF Cite

Research ArticleOpen accessIn the abstractObject Exploration Using a Three-Axis Tactile Sensing InformationS. C. Abdullah, Jiro Wada, Masahiro Ohka, Hanafiah YussofProblem statement: To advance the robust object recognition of robots, we present an algorithm for object exploration based on three-axis tactile data that is necessary and sufficient for the evaluation of contact phenomena. Approach: The object surface contour is acquired by controlling the finger position so that the normal force, measured by optical three-axis tactile sensors, remains constant as two … …Journal of Computer Science, Vol. 7, Issue 4 · 4 Apr 2011 · 7,313 accessesView PDF Cite