Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

61 results for “valve”
Set a search alert
Research ArticleOpen accessIn the keywordsWater Hammer Analysis by Characteristic MethodA.R. Lohrasbi, R. AttarnejadRapid changes in the velocity of fluid in closed conduits generate large pressure, which are transmitted through the system with the speed of sound. When the fluid medium is a liquid the pressure surges and related phenomena are described as water hammer. Water hammer is caused by normal operation of the system, such as valve opening or closure, pump starts … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 8,701 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Study of Thermal Contact using Nonlinear System Identification ModelsM.H. Shojaeefard, K. Goudarzi, A.R. Noorpoor, M. FazelpourOne interesting application of system identification method is to identify and control the heat transfer from the exhaust valve to the seat to keep away the valve from being damaged. In this study, two co-axial cylindrical specimens are used as exhaust valve and its seat. Using the measured temperatures at different locations of the specimens and with a semi-analytical method, … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2008 · 7,528 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEvaluation of a New Device, Automated Shower head on Water Conservation in Bath ShowersM. Shamsi, G. H.S. BonjarIn cosmopolitan areas and big cities of the world, shortage of drinking water during the peaks of consumption hours is a noticeable problem. Many people may not have piped water during these critical hours especially in summer times. To minimize this problem, an electronic control valve was designed and developed which saved about 70% of water in each showering session … …American Journal of Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2004 · 7,201 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRemoval of Hydrogen Sulphide from WaterS. Edwards, R. Alharthi, A.E. GhalyProblem statement: The concentration of H2S in groundwater is a significant problem in various areas across Canada. Hydrogen sulphide dissolves in ground water imparting undesirable taste and irritating rotten egg smell which makes it unpalatable. Ingestion of sulphides through drinking water can result in stomach discomfort, nausea and vomiting. Humans exposed to high concentrations of H2S for prolonged periods show … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 26 Aug 2011 · 15,123 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExperimental Validation of a Mathematical Model of the Operation of a Hydraulic Ram Pump with a Springs SystemAndriamahefasoa Rajaonison, Hery Tiana RakotondramiaranaWater pumps, which usually require fuels or power, are for carrying water from water sources to a facility, generally a household or a farm in the countryside. The present study consists of conducting an experimental validation of a mathematical model that was developed in a previous work for simulating the functioning of a new form of the hydraulic ram pump, … …American Journal of Applied Sciences, Vol. 17, Issue 1 · 14 Jun 2020 · 7,702 accessesView PDFCite
Research ArticleOpen accessIn the keywordsACTINOMYCES NAESLUNDII, A PREVIOUSLY UNDOCUMENTED CAUSE OF INFECTIVE ENDOCARDITIS; WITH LITERARY REVIEWLoren Garrison Morgan, Ashley L. Davis, Paul Poommipanit, Yasir AhmedActinomycotic endocarditis is a rare disease with only 18 documented cases to date. Most of these cases are sub-acute or chronic infections and usually lack the stigmata of classic endocarditis. This article reviews the details of previously published reports of endocarditis due to various species of actinomyces, along with consensus opinion on diagnosis and treatment. We also present our unique … …American Journal of Infectious Diseases, Vol. 10, Issue 3 · 27 Oct 2014 · 6,972 accessesView PDFCite
Research ArticleOpen accessIn the author namesA DATA WAREHOUSE DESIGN FOR THE DETECTION OF FRAUD IN THE SUPPLY CHAIN BY USING THE BENFORD’S LAWCornelia Kraus, Raul ValverdeLarge data volumes and the inability to analyse them enables fraudulent activities to go unnoticed in supply chain management processes such as procurement, warehouse management and inventory management. This fraud increases the cost of the supply chain management and a fraud detection mechanism is necessary to reduce the risk of fraud in this business area. This study was carried out … …American Journal of Applied Sciences, Vol. 11, Issue 9 · 7 Jul 2014 · 8,740 accessesView PDFCite
Research ArticleOpen accessIn the author namesHIV-1 Infection and Drug-Abuse in India-An Emerging ChallengeMahendra Kumar, Adarsh M. Kumar, Raymond Ownby et al.India has a population of over 1 billion and the first cases of HIV-1 infection were reported from there in 1987. Since then HIV-infection has spread there very aggressively and at present it is reported that there may be 5.7 millions individuals infected with HIV. Unlike the western countries where the infected HIV-1 virus belongs to clade B, in India … …American Journal of Infectious Diseases, Vol. 3, Issue 4 · 31 Dec 2007 · 7,395 accessesView PDFCite
Research ArticleOpen accessIn the author namesNeuroendocrine Abnormalities in Drug Abusers and HIV-Infected Individuals: Cortisol Response to Cold Pressor ChallengeMahendra Kumar, Drenna Waldrop-Valverde, Adarsh M. Kumar et al.Although endocrine abnormalities have been reported in HIV-1 infection, the role of risk factors is not understood. Injecting drug use (IDU) is an important risk factor for contracting HIV-infection and studies suggest that substance use may also be associated with endocrine dysfunction. In order to investigate hypothalamic pituitary adrenal (HPA) axis activity in this population, this study investigated cortisol response … …American Journal of Infectious Diseases, Vol. 2, Issue 3 · 30 Sep 2006 · 6,594 accessesView PDFCite
Research ArticleOpen accessIn the author namesCortisol Response Mediates HIV-1-Related Cognitive Deficits Among Injecting Drug AbusersRaymond L. Ownby, Drenna Waldrop-Valverde, Adarsh M. Kumar et al.The cortisol response is an important measure of the endocrine activity to environmental challenges and has been related to cognitive function and mood. Previous studies have shown that the cortisol response to stress is dysregulated in persons with HIV-1 infection. Since cortisol is neurotoxic and its levels have been related to cognitive dysfunction in various disorders, it is possible that … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 6,759 accessesView PDFCite