نتایج جستجو برای: pressure recovery factor

تعداد نتایج: 1401702  

Journal: :Ethnicity & disease 2009
David K Chatkoff Michelle T Leonard

BACKGROUND Arab Americans exhibit higher rates of hypertension and other cardiovascular risk factors relative to national averages. While research suggests some minorities may exhibit increased cardiovascular reactivity (CVR) to, and slowed recovery from, stress compared to Whites, which may represent a risk factor for hypertension and cardiovascular disease, this has not been studied in Arab A...

Forough Ameli Kaveh Mohammadi

Thermal recovery techniques including Fast-SAGD process increases the production efciency of heavy oil reservoirs. Effective parameters in this study included injection and production rates, height of the injection, production, and offset wells, production and injection cycles, and pressure of the offset wells. In this study, optimization studies were performed. The objective function was defned a...

The main purpose of this investigation is to study the effect of near miscible CO2 injection in different porous mediums on both lab and field scales. This effect can be traced by the change of two-phase gas-oil relative permeability curves. In this work, the experiments have been performed on three rock types (i.e. sandstone, dolomite, and artificial fractured sandstone) based on an incrementa...

Journal: :journal of petroleum science and technology 2015
mohammad parvazdavani seyed mahdia motahhari vahid ansari

the main purpose of this investigation is to study the effect of near miscible co2 injection in different porous mediums on both lab and field scales. this effect can be traced by the change of two-phase gas-oil relative permeability curves. in this work, the experiments have been performed on three rock types (i.e. sandstone, dolomite, and artificial fractured sandstone) based on an incrementa...

Journal: :iranian journal of oil & gas science and technology 2015
mojtaba ghaedi zoltán e. heinemann mohsen masihi mohammad hossein ghazanfari

in this paper, a very efficient method, called single matrix block analyzer (smba), has been developed to determine relative permeability and capillary pressure curves from spontaneous imbibition (si) data. smba mimics realistically the si tests by appropriate boundary conditions modeling. in the proposed method, a cuboid with an identical core plug height is considered. the equal dimensions of...

Ali Vatani Mehdi Mehrpooya, Sayed Mohammad Ali Moosavian

A type of novel hypercross-linked fiber adsorbent was obtained by sulfonation and cross-linking reaction of polypropylene fiber grafted styrene-divinylbenzene. The aim of the fiber sulfonation and cross-linking method was to prepare rigid three dimensional networks in the entire fiber and change the ion exchange capacity of fiber. The hypercross-linked fiber adsorbent possesses a principall...

Journal: :gas processing 0
sahar safarian department of energy engineering, sharif university of technology, tehran, iran masoomeh bararzadeh department of energy engineering, sharif university of technology, tehran, iran

the exergy analysis is a proper method for performance evaluation of industrial systems. a generic and detailed analysis of the gpcss on the second gas pipeline of iran  is made by the means of exergy. the two main improvement measures of fuel pre-heating and steam injection technologies are presented for the current conventional stations. steady state equations regarding the second law of ther...

Journal: :علوم زیستی ورزشی 0
علی اکبرنژاد استادیار فیزیولوژی ورزشی دانشگاه تهران حامد برزگر - دانشجوی دکتری فیزیولوژی ورزشی دانشگاه تهران رحمن سوری دانشیار فیزیولوژی ورزشی دانشگاه تهران الهام وسدی - دانشجوی دکتری فیزیولوژی ورزشی دانشگاه تهران پریسا پورنعمتی استادیار فیزیولوژی ورزشی دانشگاه تهران

introduction: purpose of this study was the effect of different music rhythms (fast rhythm and slow rhythm) in physiological responses of health young male after an exhaustive exercise session during primary minutes of recovery period. methods: seventeen healthy male (ages: 19.76 ± 0.97 yr, height: 176 ± 6.72 cm, weight: 68.5 ±7 5.95 kg), voluntarily performed bruce protocol until exhaustion wi...

Journal: :iranian journal of oil & gas science and technology 2014
behnam keshavarzi mohammad javad shojaei mohammad hossein ghazanfari cyrus ghotbi

it has been proved that ultrasonic energy can considerably increase the amount of oil recovery in animmiscible displacement process. although many studies have been performed on investigating theroles of ultrasonic waves, based on the best of our knowledge, little attention has been paid to evaluatewave attenuation parameter, which is an important parameter in the determination of the energydel...

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