نتایج جستجو برای: time variability

تعداد نتایج: 2026936  

Journal: :Journal of Geophysical Research: Space Physics 2001

ژورنال: پژوهش در پزشکی 2012
زالی, علیرضا , عارفیان, نور محمد ,

Abstract Many studies have been conducted on heart rate variability. Variability in the heart signal of two sequential beats is called heart rate variability (HRV). Short- and long- term variability reflects autonomic nervous system function, so that increased or decreased heart rate variability (HRV) is an indicator of human health. So, the analysis of these changes can predict sudden death...

The ability to direct the gaze to optimal areas in the environmental context, at the appropriate time, is central to success in all sports. The aim of this study was to changes determine the elements of QE, during the run a reactivity launcher targeting skill, under different environmental demands. That was done to identify perceptual - cognitive effects performance-based infrastructure process...

Journal: :Sci. Comput. Program. 2004
André van der Hoek

Most solutions for introducing variability in a software system are singular: they support one particular point in the software life cycle at which variability can be resolved to select a specific instance of the system. The presence of significantly increased and dissimilar levels of variability in today’s software systems requires a flexible approach that supports selection of a system instan...

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