نتایج جستجو برای: multistage pressure
تعداد نتایج: 417162 فیلتر نتایج به سال:
The relative contributions of aging and coronary heart disease to the impairment of functional capacity were assessed in 117 coronary patients, 117 age-matched healthy middle-aged men, and 62 healthy young men by utilizing a multistage treadmill test of maximal exercise. With aging alone, duration of exertion and maximal exercise heart rate were diminished while maximal systolic pressure increa...
The paper presents the results of numerical research steam jet injector applications for regenerative feed water heating systems marine turbine propulsion plants. analysis shows that use a single heat exchanger in relative increase thermal efficiency plant by 0.6–0.9%. also indicates legitimacy usage multistage systems, which would enable operating parameters optimization injectors. obtained pr...
BACKGROUND We determined the prevalence of general and central obesity and their relationship with blood pressure levels among adolescents in Abeokuta, Nigeria. METHODS We selected 423 adolescents from seven schools in Abeokuta, Nigeria, using a multistage random-sampling technique. Body mass index (BMI), waist circumference (WC) and blood pressures were measured. RESULTS Twenty-one (5%) ch...
Ammonia is stored as a liquefied raw material it used in the fertilizer and cooling industries. The use of multistage compressors during storage essential, boiling point very low (-33°C) due to typical petroleum derivative. Because pressure-temperature optimization with single-stage compressor does not allow ammonia be under atmospheric conditions. condenser throttling valves systems together m...
Background and Aim: High blood pressure in children, especially in developing countries is growing. Birth weight, age and anthropometric parameters such as current height and weight as factors in childhood hypertension and adolescents have been considered. The objective of this study was to evaluate the prevalence of hypertension in children school and it's correlation with birth weight and cur...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید