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147 results for “pressure increase”
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Research ArticleOpen accessIn the abstractPhotocatalytic Decolourization of Textile Effluent Containing Reactive Red 120 Dye With UV/TiO2Rishi Ananthashankar, Abdel GhalyThe efficiency of degradation of an aqueous solution of reactive red 120 dye using Advanced Oxidation Process (AOP) was evaluated. A low pressure UV lamp and a combination of UV/TiO2 were tested using ten different dye concentrations (50 - 500 mg/L) at several retention times (5.2-60 min) a pH of 10.5. The effect of acidic pH (pH = 3) on … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 3 · 28 Aug 2013 · 8,353 accessesView PDFCite
Research ArticleOpen accessIn the abstractCylinder Pressure Variations of the Fumigated Hydrogen-Diesel Dual Fuel CombustionBoonthum Wongchai, Porranat Visuwan, Sathaporn ChuepengCylinder pressure is one of the main parameters of diesel engine combustion affecting several changes in exhaust gas emission composition and amount as well as engine useful power, specifically when alternative fuels are used. One among other alternative fuels for diesel engine is hydrogen that can be used as fumigated reagent with air prior to intake to engine in order … …American Journal of Applied Sciences, Vol. 9, Issue 12 · 12 Dec 2012 · 7,443 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Hydrogen Addition on Diesel Engine Operation and NOx Emission: A Thermodynamic StudyPrateep Chaisermtawan, Sathaporn Chuepeng, Sompop JarungthammachoteProblem statement: The worldwide increasing energy demand and the environmental problem due to greenhouse gas emission, especially produced from fossil fuel combustion, have promoted research work to solve these crises. Diesel engine has proven to be one of the most effective energy conversion systems. It is widely used for power generation, land vehicles and marine power plant. To reduce diesel … …American Journal of Applied Sciences, Vol. 9, Issue 9 · 4 Aug 2012 · 7,767 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrevalence of Cardiovascular Disease Risk Factors among Scottish Youth: A Pilot InvestigationJ. D. Young, D. S. Buchan, L. Kilgore et al.Problem statement: Approximately 70% of the total ethnic minority population of Scotland is of South Asian ancestry, although relatively little is known about their cardiovascular risk profile. Determining the risk profiles of Scottish youth of South Asian ancestry may inform the creation of interventions to reduce risk and improve the quality of life in this population. Approach: The purpose of … …OnLine Journal of Biological Sciences, Vol. 12, Issue 2 · 26 Jul 2012 · 7,503 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeat Transfer Augmentation for Electronic CoolingSuabsakul GururatanaProblem statement: The performance of electronic devices has been improving along with the rapid technology development. Cooling of electronic systems is consequently essential in controlling the component temperature and avoiding any hot spot. The study aims to review the present electronic cooling methods which are widely used in electronic devices. Approach: There are several methods to cool down the electronics … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 2 Feb 2012 · 7,712 accessesView PDFCite
Research ArticleOpen accessIn the abstractFluctuation of Brain Tissue Oxygen Partial Pressure: A Biochemical Landmark in the Arctic Ground Squirrel's Spontaneous ArousalYi Long Ma, Shu Fen Wu, Lawrence K. DuffyHibernation in the Arctic ground Squirrel (AGS) is a regulated, adaptive response to arctic environmental conditions. Problem statement: Regional brain Blood Flow (rCBF) has been observed to increase dramatically during arousal in hibernators. However, the real time dynamic change in PtO2 during arousal has not been studied, we hypothesized that PtO2 is Interdependent of Tbrain and a key component in … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 4 · 1 Feb 2012 · 7,601 accessesView PDFCite
Research ArticleOpen accessIn the abstractPreparation-Properties Relation of Mn-Cu Hopcalite CatalystArdita Mele, Ilo Mele, Altin MeleProblem statement: The Mn-Cu hopcalite catalyst was used for the conversion of CO to CO2 at low temperatures. It was the catalyst of choice in the gas masks for respiratory protection in mines, aircrafts, military, spatial laboratories. Approach: The efficiency of hopcalite catalyst depends on its surface parameters. Its surface characteristics can be influenced from the chosen way of the … …American Journal of Applied Sciences, Vol. 9, Issue 2 · 26 Dec 2011 · 7,888 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Pressure, Water Depth and Water Flow Rate on Oxygen Saturation Level in Activated Sludge ProcessNabil N. Atta, Amro A. Elbaz, Alhassan H. SakrProblem statement: The role of aeration in activated sludge process is to provide oxygen to microorganisms as they assimilate the organic carbon compounds and digest a portion of them to carbon dioxide and water, sulfate and nitrate compounds. The water aeration equipment used in this process consumes as much as 60-80% of total power requirements in modern wastewater treatment plants. … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 4 · 21 Dec 2011 · 8,741 accessesView PDFCite
Research ArticleOpen accessIn the abstractInterleukin-10, Mean Arterial Blood Pressure and Insulin Resistance in Normal PregnancyAbdolreza Sotoodeh Jahromi, Mohammad Reza Farjam, Mohammad Hassan Davami et al.Problem statement: The purpose of this study was to investigate whether serum of Interleukin-10 (IL-10) Concentration change during normal pregnancy and, if so, to relate these changes corresponding alterations in insulin resistance and blood pressure. Approach: This cross sectional study was carried out on 86 healthy pregnant women including 26, 23 and 37 individuals in the 1st, 2nd and 3rd … …OnLine Journal of Biological Sciences, Vol. 11, Issue 3 · 2 Dec 2011 · 7,815 accessesView PDFCite
Research ArticleOpen accessIn the abstractHas The Sea Changed? Qualitative Analyses on the Views of Fishermen in the east coast zone of PeninsularHayrol Azril Mohamed Shaffril, Bahaman Abu Samah, Jeffrey Lawrence D’Silva, Jegak UliProblem statement: Pressure from the uncontrolled human activities had caused damages to our environment. The sea, as one of the environment components has also suffered from these activities. Fishermen, whom depend on the sea for their income and sources of protein, can be one of the groups who are suffering the most. This study intends to discover the perception of … …American Journal of Environmental Sciences, Vol. 7, Issue 5 · 2 Nov 2011 · 7,302 accessesView PDFCite