نتایج جستجو برای: time variability

تعداد نتایج: 2026936  

Journal: :علوم و فناوری های پدافند نوین 0
محمدرضا معرف زاده mohammad reza moarefzadeh civil eng. dept, eng. faculty, imam hossein university, tehran, iranتهران - دانشگاه امام حسین (ع) - دانشکده فنی و مهندسی - گروه عمران

directional simulation, among techniques for reliability analysis of engineering structures, is well known. in this context, directional simulation in load space, because of the considerable advantages of lower dimension of working space, is of considerable interest. as is expected due to structural resistance variability, the location of the relevant limit state(s) is no longer constant and mu...

Journal: :the modares journal of electrical engineering 2003
soheil ganjehfar hamidreza moumenian farrokh - janabi sharifi mohammad taghi hamidi beheshti

in this paper, behavior of teleoperation systems with modeling error and delay time error in smith predictor is discussed. in teleoperation systems, modeling error is inevitable. this paper discusses stability of teleoperation systems with modeling error. first, error of delay time in teleoperation systems by using of internet as communication channel is considered and the performance of smith ...

2004
P. B. Siegel J. Sperber W. Kindermann A. Urhausen

An analysis of the RR-interval time series, t i , is presented for the case in which the average time, ¯ t, changes slowly. In particular, ¯ t and a short-time scale variability parameter, V , are simultaneously measured while ¯ t decreases for subjects in the reclined position. The initial decrease in ¯ t is usually linear with V yielding parameters that can be related to physiological quantit...

Journal: :Entropy 2017
Ryo Matsuoka Kohzoh Yoshino Eiichi Watanabe Ken Kiyono

Multiscale entropy (MSE) profiles of heart rate variability (HRV) in patients with atrial fibrillation (AFib) provides clinically useful information for ischemic stroke risk assessment, suggesting that the complex properties characterized by MSE profiles are associated with ischemic stroke risk. However, the meaning of HRV complexity in patients with AFib has not been clearly interpreted, and t...

Journal: :Symposium - International Astronomical Union 1971

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید