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53 articles for “test pressure”
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Research ArticleOpen accessIn the keywordsStudy of the Permeability of Foam Conditioned Soils with Laboratory TestsLuca Borio, Daniele PeilaProblem statement: EPB tunneling requires that the excavated soil has a plastic and pulpy behavior to be able to apply a stabilizing pressure to the face, but it should also be impervious to counteract filtration forces that could develop ahead of the face. The evaluation of this parameter in granular soil, before and after conditioning, is therefore of key importance … …American Journal of Environmental Sciences, Vol. 6, Issue 4 · 31 Aug 2010 · 8,459 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEvaluation of Damsites Groutability Using Secondary Permeability Index, Rock Classification (Case Studies)R. Ajalloeian, F. MoeinProblem statement: The dam body and foundation seepage is one of the important points in design parameters. This index is related to the permeability. There fore permeability is one of the basic parameter in design grout curtain, prevent water escape from foundation and avoid negative seepage pressure in borrow materials, so grouting is used. Grouting means injected materials like cement … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,411 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Investigation of Valve Lift Effect on Air Flow and Coefficient of Discharge of Four Stroke Engines Based on ExperimentAbdul Rahim Ismail, Rosli Abu Bakar, SeminThe coefficient of discharge (CD) is defined as the ratio of actual discharge to ideal discharge. In an engine environment, ideal discharge considers an ideal gas and the process to be free from friction, surface tension, etc. Coefficients of discharge are widely used to monitor the flow efficiency through various engine components and are quite useful in improving the performance … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 7,431 accessesView PDFCite
Research ArticleOpen accessIn the abstractPreparation and Quality Analysis of Pineapple Red Orange Fresh BeerJuan Yang, Biaoshi Wang, Xiaojun Hu et al.To optimize the brewing technology of pineapple red orange fresh beer, a single-factor experimental design was used to investigate the effects of fermentation sugar content, fermentation pressure and fermentation temperature. Based on the single-factor test results, the Box-Behnken test design and response surface analysis were used to optimize the process parameters with the sensory evaluation score as the response index. … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 4 · 5 Dec 2022 · 5,368 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Vitamin D Deficiency on Cardio Metabolic Ageing in Middle Aged Adults in India: A Comparative AnalysisSumit Kumar, Adithi K, Shailaja S MoodithayaAdvancing age is accompanied by a gradual deterioration in physiological function, resulting in an increased risk of chronic diseases and early mortality. Growing evidence suggests that inadequate vitamin D status may be associated with unfavourable metabolic and cardiovascular alterations. Nevertheless, information regarding the association of vitamin D status with integrated cardio-metabolic biomarkers of ageing in middle-aged adults is currently limited. … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 3 Sep 2026 · 732 accessesView PDFCite
Research ArticleOpen accessIn the abstractClimate-Driven Productivity Responses and Implications for Genetic Adaptation and Breeding of Boreal Trees in KazakhstanZhadyra Baigazakova, Kuralay Mazarzhanova, Asset Satayev et al.Kazakhstan’s boreal and forest-steppe forests form the southern ecotonal edge of the West Siberian taiga, where relatively small changes in heat and moisture can trigger disproportionate impacts on tree growth, mortality, and regeneration. Although forests cover only ~4% of Kazakhstan, they provide critical ecosystem services: stabilizing hydrological regimes, buffering microclimates, protecting agricultural lands from wind and water erosion, and supporting … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 10 Aug 2026 · 709 accessesView PDFCite
Research ArticleOpen accessIn the abstractExperimental Trails on Diesel Engine Performance and Emission Characteristics of Waste Cooking Oil Combinations at Varying Injection PressuresAbdullah Al-Ghafis, M. Shameer BashaProgressive rising of conventional fuel prices, as well as the high strengthened necessities of the environmental norms to reduce the atmospheric pollution levels, are flattering great challenges to scientists and researchers all over the world. In this regard, biofuels have become one of the best alternative fuels for conventional IC engine operation with reduced emissions and improved performance. Goal of … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 29 Jan 2021 · 7,488 accessesView PDFCite
Research ArticleOpen accessIn the abstractFactors Associated with Death in Patients COVID-19 at the Epidemic Treatment Center of the Fann National University Hospital, DakarViviane Marie Pierre Cisse, Khardiata Diallo Mbaye, Ndèye Maguette Fall et al.The aim of this study was to identify the factors associated with death in patients monitored for COVID-19 at the Epidemic Treatment Center (ETC) of the Fann National University Hospital (FNUH). This was a cross-sectional, retrospective, descriptive, and analytical study of patients hospitalized for COVID-19 during the period from 1 July 2021 to 31 March 2022. Patients aged 16 years … …American Journal of Infectious Diseases, Vol. 20, Issue 2 · 4 Nov 2024 · 4,257 accessesView PDFCite
Review ArticleOpen accessIn the abstractNovel Approach for Characterizing Solid Rocket Motor (SRM)Aliyu Bhar Kisabo, Ngozi Nwokolo, Aliyu Funmilayo Adebimpe, Sholiyi Olusegun SamuelTo characterize SRM, the motor needs to be tested on a static test rig and certain performers indicators evaluated. In this study, the thrust with time from the SRM was acquired via a Digital Acquisition (DAQ) System and saved in Microsoft Excel® format(.csv). These thrust and time of the tested motor were then imported into MATLAB® for the purpose of … …Journal of Aircraft and Spacecraft Technology, Vol. 3, Issue 1 · 24 May 2019 · 6,455 accessesView PDFCite
Research ArticleOpen accessIn the abstractPressure Ulcer Prevention: Optimizing a Temporally Redistributing Support InterfaceJoshua M. Peterson, Colleen P. Healey, G. Jacobus Visser et al.One of the most common complications from long-term wheelchair use or bed rest is pressure ulcers. Pressure ulcers have significant morbidity and are associated with high mortality. Prolonged sitting can cause high pressures in the skin and subcutaneous tissue which can lead to local ischemia and breakdown of skin. Rapid relief of pressure prevents ulcer formation. One prevention strategy is … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 4 · 22 Dec 2016 · 7,897 accessesView PDFCite