نتایج جستجو برای: pressure recovery factor
تعداد نتایج: 1401702 فیلتر نتایج به سال:
The article presents an analysis of alternative theories ecological and economic development. authors formulate the role environmental factor in socio-economic development, taking into account ideas schools trends. paper analyzes problems preserving environment as basis human life. This takes nature impact anthropogenic pressure on natural complexes objects, due to increased consumption, excess...
abstract introduction: smoking is an important risk factor of coronary artery disease. nicotine replacement therapy (nrt) for smoking cessation should be considered, especially in coronary patients. methods: twenty-four healthy smokers, smoking an average of 20 cigarettes a day for 15 years and with moderate cigarette dependence (according to the fagershtrum questionnaire score) were randomly ...
Optimization of operation conditions (temperature, time, solvent: solid proportion) of subcritical water hydrolysis (SWH) is needed so that it can be considered an effective process for second generation bioethanol manufacturing. The objective of this study was to optimize operation conditions using a semi-batch SWH system equipped with a 50 mL reaction vessel. Initially, the process was carrie...
One of the methods to achieve optimal conditions in increasing oil recovery through injecting polymers is by optimizing parameters that influence success provide information and be considered when determining new schemes for implementation future. Optimization obtain optimum value factor best PV, injection rate, time, pressure, adsorption, residual resistance (RRF), inaccessible pore volume (IP...
Background Pressure recovery is the variable increase in lateral pressure downstream from a stenotic orifice. The magnitude and clinical significance of pressure recovery in aortic valve stenosis are poorly defined. Methods and Results We obtained high-fidelity pressure and velocity recordings in 11 patients with isolated significant aortic valve stenosis at the time of diagnostic cardiac cathe...
Due to the compactness of shale reservoir matrix and high conductivity fractures, hydrocarbon gas injection huff puff method or displacement is most realistic technology improve oil recovery. The diffusion mechanism plays an important role in development; therefore, it crucial figure out factors influencing diffusion, which could enhance In this paper, a physical simulation experiment designed ...
According to medical studies, cardiovascular diseases are the most common and most important risk factor for mortality and disability in Iran. Hence, the National Blood Pressure Control Program was implemented throughout the country from May 17, 2018 (coinciding with the World Blood Pressure Control Day) to July 6th. One of the important issues in blood pressure screening is the correct diagnos...
abstract: in this paper, an exergy analysis approach is proposed for optimal design of distillation column by using simulated annealing algorithm. first, the simulation of a distillation column was performed by using the shortcut results and irreversibility in each tray was obtained. the area beneath the exergy loss profile was used as irreversibility index in the whole column. then, first opti...
Background: Considering the increasing number of patients with hemophilia and infrastructure requirements for a comprehensive approach, development of a recombinant factor has become a milestone. The objective of this study was to assess the safety, efficacy and non inferiority of Safacto (Recombinant factor VIII) compared with plasma-derived factor in the treatment of hemophilia A. Methods: 10 ...
Blood pressure pattern was analyzed in 12 complete quadriplegics with chronic lesions after three months of treadmill gait training. Before training, blood pressure values were obtained at rest, during treadmill walking and during the recovery phase. Gait training was performed for 20 min twice a week for three months. Treadmill gait was achieved using neuromuscular electrical stimulation, assi...
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