نتایج جستجو برای: rate pressure product

تعداد نتایج: 1550258  

Journal: :journal of chemical and petroleum engineering 2012
arezoo sadat emrani mohammad saber fatola farhadi

in this paper, modeling and optimization of fischer-tropsch synthesis is considered in a fixed-bed catalytic reactor using an industrial fe-cu-k catalyst. a one dimensional pseudo-homogenous plug flow model without axial dispersion is developed for converting syngas to heavy hydrocarbons. the effects of temperature, pressure, h2 to co ratio in feed stream, and co molar flow on the mass flow rat...

ژورنال: :مجله طب پیشگیری طبری 0
ماریا رحمانی قبادی marya rahmani ghobadi department of physical education and sports sciences, damavand branch, islamic azad university, tehran, iranگروه تربی تبدنی و علوم ورزشی، دانشگاه آزاد اسلامی واحد دماوند، تهران، ایران رستگار حسینی rastegar hoseini assistance professor, department of exercise physiology, faculty of physical education and sport science, razi university, kermanshah, iranاستادیار، دانشکده تربی تبدنی و علوم ورزشی، دانشگاه رازی، کرمانشاه، ایران زهرا حسینی zahra hoseini bsc student of physical education and sport sciences, faculty of physical education and sports sciences, university of guilan, rasht, iranدانشجوی کارشناسی تربی تبدنی و علوم ورزشی، دانشکده تربی تبدنی و علوم ورزشی دانشگاه گیلان، گیلان، ایران

سابقه و هدف: بیمار ی های قلبی- عروقی از جمله عمده ترین موارد مرگ و میر در دنیا محسوب می شوند. یکی از مهم ترین عوامل خطرناک برای بیماری های قلبی- عروقی، پرفشاری خون است. کاهش فشار خون، اهمیت به سزایی در کاهش وقوع حوادث قلبی- عروقی دارد که م یتواند به وسیله فعالیت ورزشی صورت پذیرد؛ ازاین رو، پژوهش حاضر با هدف بررسی اثر شش هفته فعالیت مقاومتی بر عوامل خطرزای قلبی- عروقی در دختران تمرین نکرده دارای...

2016
Dunja Aksentijević Hannah R. Lewis Michael J. Shattock

NEW FINDINGS What is the central question of this study? Rate-pressure product (RPP) is commonly used as an index of cardiac 'effort'. In canine and human hearts (which have a positive force-frequency relationship), RPP is linearly correlated with oxygen consumption and has therefore been widely adopted as a species-independent index of cardiac work. However, given that isolated rodent hearts d...

اسدمبینی, عاطفه , حصاری , مهوش , شکیبایی, داریوش, واعظی , مریم,

Background and Objective: Hypothyroidism decreases cardiac contractility and heart rate. Since cardiac function is also modulated by diazepam, the aim of this study was to investigate the direct effect of diazepam on the isolated hypothyroid rat heart. Materials and Methods: This experimental study was conducted on 30 rats in four groups (control, hypothyroid, control diazepam and hypotyroid+d...

Journal: :Journal of food protection 2006
Gurbuz Gunes L K Blum J H Hotchkiss

Dense-phase carbon dioxide (CO2) treatments in a continuous flow through system were applied to apple cider to inactivate Escherichia coli (ATCC 4157). A response surface design with factors of the CO2/product ratio (0, 70, and 140 g/kg), temperature (25, 35, and 45 degrees C), and pressure (6.9, 27.6, and 48.3 MPa) were used. E. coli was very sensitive to dense CO2 treatment, with a more than ...

2014
Hongfei Chen Yun Xia Binbin Zhu Xiawei Hu Shihao Xu Limei Chen Thomas J Papadimos Wantie Wang Quanguang Wang Xuzhong Xu

BACKGROUND The reversal efficacy of 2% lipid emulsion in cardiac asystole induced by different concentrations of bupivacaine is poorly defined and needs to be determined. METHODS Forty-two male Sprague-Dawley rats were randomly divided into seven groups: B40, B60, B80, B100, B120, B140 and B160, n = 6. The Langendorff isolated heart perfusion model was used, which consisted of a balanced perf...

2012
Nish Chaturvedi Rajaram Bathula Angela C. Shore Ronney Panerai John Potter Jaspal Kooner John Chambers Alun D. Hughes

BACKGROUND Stroke mortality rate is higher in South Asians than in Europeans, despite equivalent or lower resting blood pressure (BP). Elevated recovery BP after exercise predicts stroke, independently of resting values. We hypothesized that South Asians would have adverse postexercise hemodynamics and sought explanations for this. METHODS AND RESULTS A population-based sample of 147 European...

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