نتایج جستجو برای: programmed control
تعداد نتایج: 1350533 فیلتر نتایج به سال:
Abstract – This paper explores predictive digital current programmed control for valley, peak or average current. The control laws are derived for the three basic converters: buck, boost, and buckboost. It is found that for each variable of interest (valley, peak or average current) there is a choice of the appropriate pulse-width modulation method to achieve predictive digital current control ...
A maternal low-protein diet has been shown to program hypertension and a reduction in glomerular filtration rate in adult offspring. This study examined the effect of continuous administration of enalapril in the drinking water and transient administration of enalapril administered from 21 to 42 days of age on blood pressure and glomerular filtration rate (GFR) in male rats whose mothers were f...
Introduction. Programmed instruction (PI) and lecture based learning have been compared in previous studies in the world, but due to special condition of education in nursing, the effects of these two methods have been less investigated in Iranian universities. This study attempts to compare the effect of these two educational methods on nursing students' learning about the basic principles of ...
Apoptosis or programmed cell death is a physiological form of cell death that occurs in embryonic development and during involution of organs. It is characterized by distinct biochemical and morphological changes such as DNA fragmentation, plasma membrane blebbing and cell volume shrinkage. Many hormones, cytokines and growth factors are known to act as general and/or tissue-specific survival f...
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