Results 71 to 80 of about 3,763,617 (312)

Reliability Analysis Considering the PFC Function and Redundancy Effect of the Vienna Converter

IEEE Access
This paper analyzes the impact of power factor correction (PFC) on the failure rate of a Vienna converter through reliability analysis under conditions where AC-to-DC conversion is possible but the PFC function is not functioning due to a partial failure
Yun-Sik Jang, Sang-Hyeok Lee, Feel-Soon Kang   +2 more
doaj   +1 more source

Efficient estimation of the mean time between failures in non-regenerative dependability models [PDF]

Proceedings of the 25th conference on Winter simulation - WSC '93, 1993
In this paper we discuss fast simulation techniques for estimating the steady-state mean time between failures (MTBF) in non-Markovian models of highly dependable systems. The key is to use a ratio representation of the MTBF, in which the denominator is closely related to the probability of a rare event and is therefore amenable to estimation using ...
Glynn, P.W., Heidelberger, P., Nicola, Victor F., Shahabuddin, P.   +3 more
openaire   +2 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Self‐Reported Outdoor Light Exposure Time and Incident Heart Failure

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background A healthy lifestyle is an important factor for preventing heart failure. However, the association between outdoor light exposure time and heart failure is still unknown.
Ziteng Zhang, Bowei Yu, Ying Sun, Kun Zhang, Xiao Tan, Yingli Lu, Ningjian Wang, Fangzhen Xia   +7 more
doaj   +1 more source

Accelerated Degradation Model of Nonlinear Wiener Process Based on Fixed Time Index

Mathematics, 2019
In the process of extrapolating a lifetime distribution function under normal storage conditions through nonlinear accelerated degradation data, time indexes under the normal storage conditions are usually set to the mean value of time indexes under ...
Hanzhong Liu, Jiacai Huang, Yuanhong Guan, Li Sun   +3 more
doaj   +1 more source

Pulmonary tuberculosis and some underlying conditions in Golestan Province of Iran, during 2001-2005 [PDF]

, 2009
Context: Pulmonary tuberculosis has been a major health problem in Golestan province of Iran. Aims: This descriptive cross-sectional study was performed to evaluate the frequency of coexisting medical conditions and their effects on some epidemiologic ...
Dashti, M., Golsha, R., Najafi, L., Rezaei, S.R., Roshandel, G., Shafiee, A.   +5 more
core  

Sudden cardiac death in patients with ischemic heart failure undergoing coronary artery bypass grafting results from the STICH randomized clinical trial (Surgical Treatment for Ischemic Heart Failure) [PDF]

, 2017
Background—The risk of sudden cardiac death (SCD) in patients with heart failure following CABG has not been examined in a contemporary clinical trial of surgical revascularization. This analysis describes the incidence, timing and clinical predictors of
Al-Khatib, Sana M., Carson, Peter E., Cleland, John G.F., Desvigne-Nickens, Patrice M., Feldman, Arthur M., Lang, Irene M., Lee, Kerry L., Nicolau, Jose C., Pokorney, Sean, Rao, Meena P., Romanov, Alexander, Rouleau, Jean L., Selzman, Craig H., She, Lilin, Siepe, Matthias, Stepinska, Janina, Sueta, Carla, Tungsubutra, Wiwun, Velazquez, Eric J., Yii, Michael   +19 more
core   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Life analysis of restored and refurbished bearings [PDF]

An analysis of the potential life of refurbished and restored bearings was performed. The sensitivity of 10-percent life and mean-time-between-failure to the effects of cumulative fatigue damage and the amount of stressed volume removed in the ...
Cowgill, G. R., Coy, J. J., Zaretsky, E. V.   +2 more
core   +1 more source

First evaluation of neutron induced single event effects on the CMS barrel muon electronics [PDF]

, 2000
Neutron irradiation tests of the currently available electronics for the CMS barrel muon detector were performed using Thermal and fast neutrons at E< 11MeV.
Agosteo, S, Castellani, L, D'Angelo, G, Favalli, A, Lippi, I, Martinelli, R, Zotto, P L   +6 more
core   +1 more source