نتایج جستجو برای: activity rate
تعداد نتایج: 2003182 فیلتر نتایج به سال:
Although catalyst deactivation rate greatly varies depending on many factors, including the catalyst structure, reactor feed composition, and operating conditions; it is usually inevitable. Since catalyst deactivation modeling has so far been poorly addressed in the literature, in the present study, nine experimental sets of cobalt based Fischer-Tropsch catalysts activity-time data were conside...
The purpose of this study was to survey the effect of dietary fish oil replacement with different levels of soybean lecithin on growth performance and digestive enzymes activity of Persian sturgeon. Three hundred and sixty fish with average weight of 85 ± 0.09 g were treated with 6 experimental diets and three replicates, containing 0, 2, 4, 6, 8 and 10 percent soybean lecithin for 10 weeks. Ba...
Background and Objective: Lack of physical activity is a major risk factor for obesity and cardiovascular disease. Pregnancy and postpartum can limit physical activity. The purpose of this study was to evaluate beliefs and physical performance during pregnancy and postpartum. Materials and Methods: During a cross sectional study, 200 women within 1 year of a child’s birth were recruited. To ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید