نتایج جستجو برای: Water Pressure

تعداد نتایج: 926030  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم کشاورزی 1386

چکیده ندارد.

Journal: :energy equipment and systems 0
alireza pourshaghaghy faculty of industrial and mechanical engineering, qazvin branch, islamic azad university, qazvin, iran

the aim of this study is to find the optimal water pressure and percentage of supply vapour in the feed water heaters (fwhs) of steam power plants, such that they maximize the thermal efficiency of the rankine cycle within pre-specified values of minimum and maximum pressures of the thermodynamic cycle. thermal efficiency is defined as a function of unknown variables (fluid pressure and vapour ...

Journal: :international journal of civil engineering 0
h. soltani-jigheh amirkabir university of technology a. soroush amirkabir university of technology

mixed clayey soils occur as mixtures of sand (or gravel) and clay in widely varying proportions. their engineering behavior has not been comprehensively studied yet. an experimental program, comprising monotonic, cyclic, and post-cyclic triaxial tests was undertaken on compacted clay-granular material mixtures, having different proportions of clay and sand or gravel. this paper presents the res...

Journal: :annals of military and health science research 0
رویا احمدی roya ahmadi 1department of chemistry, faculty of basic sciences, shahr-e rey branch, islamic azad university, tehran, iranایران، تهران،دانشگاه آزاد اسلامی واحد شهرری،گروه شیمی ماندانا پیراهن فروش mandana pirahan-foroush 1department of chemistry, faculty of basic sciences, shahr-e rey branch, islamic azad university, tehran, iranایران، تهران،دانشگاه آزاد اسلامی واحد شهرر

purpose: today considerable advances have been achieved in application of nano-particles.   fullerene is one of the artificial forms of carbon element. long life cycle of medicines in the   human body is a success factor in delivery of medicine to the specific place. lots of nanoparticles   are being developed in this field and from a medical point of view, achieving such   goals is vital. the ...

Journal: :civil engineering infrastructures journal 0
rajesh gupta b.e. (civil), m. tech. (env.), ph.d. mohd abbas haider abdy sayyed b.e. (civil), m. tech (env.)

a water distribution network is subjected to various abnormal conditions such as pipe breaks, pump failures, excessive demands etc. in the design period. under such conditions, the network may not be able to meet required demands at desired pressures, and becomes deficient. traditional network analysis assumes nodal demands to be satisfied and available nodal pressures are calculated. however, ...

Journal: :asian journal of sports medicine 0
ali farahani department of cardiology, tehran university of medical sciences, tehran, ir iran mohammad-ali mansournia sports medicine research center, tehran university of medical sciences, tehran, ir iran hossein asheri sports medicine research center, tehran university of medical sciences, tehran, ir iran akbar fotouhi school of public health, tehran university of medical sciences, tehran, ir iran masud yunesian school of public health, tehran university of medical sciences, tehran, ir iran mohsen jamali sports medicine research center, tehran university of medical sciences, tehran, ir iran

purpose to investigate the effects of a 10-week water aerobic exercise on the resting blood pressure in patients with stage 1 or 2 hypertension referring to tehran university clinics. methods forty men with stage 1 or 2 essential hypertension were assigned to two groups of intervention [n = 12; aged 48.33±10.74 years (mean±sd)] and control [n = 28; aged 46.96±11.58 years (mean±sd)]. subjects in...

Journal: :تحقیقات آب و خاک ایران 0
حجت احمدی حسن رحیمی عباس سروش عبدالحسین هورفر

constant rate of strain (crs) consolidation is a rapid test method used for determination of compressibility of clayey soils. in a crs test, the appropriate strain rate is selected based on pore water pressure ratio, i.e. the ratio of pore pressure to total stress. in the present study, to investigate the effect of strain rate on variation of relative pore water pressure, four different clay sa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده کشاورزی 1387

چکیده ندارد.

Journal: :civil engineering infrastructures journal 0
madhuri rahul mulay r.k.n.e.c. engineering college, nagpur, india mahendra s kadu head and professor, r.k.n.e.c. engineering college, nagpur, india sanjay v dahasahasra former member secretary, maharashtra jeevan pradhikaran,(water supply department, government of maharashtra) mumbai, and former president, indian water works association, mumbai, india

water is the most essential component for sustaining lives of humans and other living creatures. supplying potable water with adequate residual pressure is a fundamental responsibility of city administration, which they do during normal conditions. but sometimes, abnormal conditions are formed resulting pressure deficient conditions during the daily operations of water distribution networks. th...

2005
Kewen Li Roland N. Horne

Steam-water capillary pressure is of central importance in geothermal reservoir engineering, however it is still poorly known due to the difficulty making direct measurements. To this end, we have conducted experimental and theoretical studies over the past five years and have made significant progress in understanding fundamental steamwater flow. In this paper, we summarize and discuss the res...

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