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53 articles for “test pressure”

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Research ArticleOpen accessIn the abstractNumerical Investigation on Turbulent Forced Convection in Heating Channel Inserted with Discrete V-Shaped BafflesAmnart Boonloi, Withada JedsadaratanachaiThe numerical examinations on flow visualization, heat transfer characteristic and performance improvement in a square duct inserted with discrete V-shaped baffles (DVB) are reported. The DVB is designed to reduce the pressure loss when compared with the V-shaped baffle. The influences of the flow blockage ratios (b/H, BR = 0.05-0.20), V-tip directions (V-Downstream and V-Upstream) are investigated for Reynolds number, … …Journal of Mathematics and Statistics, Vol. 12, Issue 1 · 15 Apr 2016 · 7,116 accessesView PDFCite
Research ArticleOpen accessIn the abstractCompaction Properties of Silty Soils in Relation to Soil Texture, Moisture Content and Organic MatterPrathuang Usaborisut, Jettapol AmpanmaneeSoil compaction is recognized as an increasingly challenging problem with regard to root growth and yield reduction in agricultural production in Thailand. The aim of this research was to study the effect of soil texture, moisture content and organic matter on the compaction properties of silty soils. Three soils with different silt contents were studied-loam, silty clay loam and silt … …American Journal of Agricultural and Biological Sciences, Vol. 10, Issue 4 · 31 Dec 2015 · 9,536 accessesView PDFCite
Research ArticleOpen accessIn the abstractParameters Optimization of Adaptive Cashew Shelling Cutter Based on BP Neural Network and Genetic AlgorithmYun-Fei Fu, Jie Gong, Hui Huang et al.The aim of this study is to determine the optimal parameters of the adaptive cashew shelling cutter. To meet the requirements of cashew nut processing enterprises, this study takes the whole-kernel rate as the optimization objective. Let the three main parameters of the adaptive cashew shelling cutter: The distance between upper and lower cutters, the pre-pressure of the spring and … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 4 · 1 Nov 2015 · 7,903 accessesView PDFCite
Technical ReportOpen accessIn the abstractWell Test and PTA for Reservoir Characterization of Key PropertiesOkotie Sylvester, Ikporo Bibobra, Ogbarode Napoleon OgbonThe characterization of a reservoir is a process which starts from the beginning of the field (oil or gas) discovery and continuous to the field’s abandonment. It quantitatively or qualitatively describes the characteristics of the reservoir using data available. In the determination of key well and reservoir parameters for reservoir characterization, it is very vital to understand the flow phases … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 4 · 30 Oct 2015 · 8,021 accessesView PDFCite
Research ArticleOpen accessIn the abstractNitrogen Narcosis in Hyperbaric Chamber NursesDenise F. Blake, Derelle A. Young, Lawrence H. BrownHyperbaric nursing has become a specialty requiring high skill and knowledge. Nitrogen narcosis is a perceived risk for all inside hyperbaric chamber nurses. The actual degree of impairment at pressure has not been quantified. Twenty eight subjects participated in the study. Sixteen hyperbaric nurse candidates and five experienced hyperbaric nurses completed Trail Making Test A (TMTA) pre and post compression … …International Journal of Research in Nursing, Vol. 5, Issue 2 · 19 Jan 2015 · 7,952 accessesView PDFCite
Research ArticleOpen accessIn the abstractRHEOLOGICAL PROPERTIES OF PADDY SOIL UNDER VARIOUS PRESSURE, WATER CONTENT AND TOOL SHAPESI. A. Mari, C. Ji, F. A. Chandio et al.In this study Burger’s four element model was used to analyze rheological parameter of paddy soil of the Southern China. Two types of tool shape include circular shape (with an area of 12.56 cm2) and rectangular shape (with an area of 12.56 cm2) were use to measure the rheological parameter of paddy soil under different loading pressure (7.65, 10.20 and … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 1 · 14 Dec 2013 · 7,513 accessesView PDFCite
Research ArticleOpen accessIn the abstractOperational Fault Diagnosis in Industrial Hydraulic Systems Through Modeling The Internal Leakage of its ComponentsP. Athanasatos, D. Koulocheris, T. Costopoulos, K. RaptisIn this study, a model of a high pressure hydraulic system was developed using the bond graph method to investigate the effect of the internal leakage of its main components (pump, cylinder and 4/2 way valve) on the operational characteristics of the system under various loads. All the main aspects of the hydraulic circuit (like the internal leakages, the compressibility … …American Journal of Applied Sciences, Vol. 10, Issue 12 · 7 Nov 2013 · 7,247 accessesView PDFCite
Research ArticleOpen accessIn the abstractNumerical Modeling of Periodic Pumping Tests in Wells Penetrating a Heterogeneous AquiferPeter A. Fokker, Joerg Renner, Francesca VergaThis study investigated how to utilize multiple frequency components of pressure data from periodic pulse tests to estimate the intra-well permeability and compressibility distribution and also the presence of heterogeneities in a real field case. Periodic well testing is a technique in which injection or production pulses of a fluid are applied to a well in a periodic fashion. One … …American Journal of Environmental Sciences, Vol. 9, Issue 1 · 13 Jan 2013 · 7,990 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 abstractLearning Equipment for the Flammability Limits of Liquefied Petroleum GasSiriratchanee Sirisawat, Supat PatvichaichodProblem statement: This article was developing learning equipment for flammability limit behavior which designed for study the relation of Liquefied Petroleum Gas (LPG) and combustion. The equipment can be use as an instructional media for obviously experiment of combustion. Approach: The test chamber was designed by using the stainless as a structure. The mirror with safety film was used for … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 11 Jul 2012 · 7,099 accessesView PDFCite