نتایج جستجو برای: pressure recovery factor

تعداد نتایج: 1401702  

The effects of greenhouse gases (GHG) on the growth of global warming, and increase of GHG and air pollutant emissions for energy production have forced the need of energy recovery which is normally wasted in industrial plant. The present research work focused on the GHG and air pollutant emissions reduction employing pressure waste energy recovery. Pressure break-down via Joule-Thomson valve i...

Chemical flooding, especially alkaline/surfactant/polymer flooding, is of increasing interest due to the world increasing oil demand. This work shows the aspects of using alkaline/surfactant/polymer as an enhanced oil recovery method in the porous media having a high dead-end pore frequency with various dead-end pore parameters (such as opening, depth, aspect ratio, and orientation). Using glas...

Journal: :journal of petroleum science and technology 2014
sina shaddel mahmoud hemmati ehsan zamanian navid nejati moharrami

various researches on laboratory and field scale illustrate that manipulating the ionic composition and the ion concentration of injected water can affect the efficiency of water flooding and the interaction of injected water with rock and other fluids present in porous media. the objectives of this paper are to investigate parameters that affect low salinity water flooding; mainly the effect o...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
zahra riazi fariborz rashidi

block heights and capillary continuity between matrix blocks play paramount role in the sensitivity analysis and therefore the history matching of cumulative oil production and production rate of carbonated fractured reservoirs. in this study, the influence of these parameters upon cumulative production and recovery factor of an iranian fractured reservoir were studied by the usage of a simulat...

Block heights and capillary continuity between matrix blocks play paramount role in the sensitivity analysis and therefore the history matching of cumulative oil production and production rate of carbonated fractured reservoirs. In this study, the influence of these parameters upon cumulative production and recovery factor of an Iranian fractured reservoir were studied by the usage of a sim...

Journal: :European heart journal 1999
W A Schöbel W Voelker K K Haase K R Karsch

AIMS In experimental studies the recovery of pressure distal to stenotic valve orifices has been well described. We evaluated the extent, determinants, and clinical importance of pressure recovery in patients with aortic valve stenosis. METHODS AND RESULTS The study was performed in 37 patients with aortic valve stenosis, in whom cardiac catheterization was performed and left ventricular and ...

2015
Bonny Roos Kim van Buul-Besseling Jan Willem Streefkerk Martijn Neef

In this paper, we present a model that identifies seven success factors for the development of crowdsourcing platforms for disaster recovery. This model integrates two existing theories. The first theory focuses on success factors of crowdsourcing initiatives in general. The second theory states how disaster relief operations can improve when they take the psychological components of resilience...

Journal: :Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology 2012
Cecilia M Prêle Melissa E Reichelt Steven E Mutsaers Marilyn Davies Lea M Delbridge John P Headrick Nadia Rosenthal Marie A Bogoyevitch Miranda D Grounds

BACKGROUND Acute insulin-like growth factor-1 administration has been shown to have beneficial effects in cardiac pathological conditions. The aim of the present study was to assess the structural and ex vivo functional impacts of long-term cardiomyocyte-specific insulin-like growth factor-1 overexpression in hearts of transgenic αMHC-IGF-1 Ea mice. METHODS Performance of isolated transgenic ...

Journal: :J. Sci. Comput. 2015
Min Yang Jiangguo Liu Yanping Lin

In this paper, two postprocessing procedures for pressure recovery are proposed and analyzed for the weakly over-penalized discontinuous Galerkin methods developed in Liu in SIAM J Numer Anal 49:2165–2181, 2011 for the Stokes problem in two dimensions. These pressure recovery procedures are just elementwise calculations, benefiting from the weak over-penalization in the corresponding velocity s...

V Ayatollahi, A Ghadami Yazdi , A Hashemi , E Ghadami Yazdi , SH Behdad ,

Abstract Background Ketamine is an anesthetic drug that is importantly analgesic without respiratory depression. Ketamine increases blood pressure and heart rate. Propofol is an anesthetic drug with good sedation, rapid recovery, but it causes respiratory depression, low heart rate and low blood pressure. Combination of Ketamine and Propofol provides sedation, analgesia and rapid recovery wit...

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