Results 241 to 250 of about 3,844,361 (299)

Effects of Left Atrial Filling Pressure on Exercise Pulmonary Gas Exchange in HFpEF: Does the V-Wave Matter? [PDF]

open access: yesCirc Heart Fail
Huang L   +10 more
europepmc   +1 more source

Long-Term Outcomes of Left Bundle-Branch Pacing vs Biventricular Pacing in Heart Failure: The HeartSync-LBBP Randomized Clinical Trial.

open access: yesJAMA Cardiol
Chen X   +21 more
europepmc   +1 more source

Further Results Involving the Mean Time to Failure Order, and the Decreasing Mean Time to Failure Class

IEEE Transactions on Reliability, 2013
The purpose of this paper is to enhance the study of the mean time to failure (MTTF) order in an age replacement model, and the decreasing mean time to failure (DMTTF) class of life distributions. We present new characterizations of the MTTF order in terms of the well-known hazard rate and reversed hazard rate orders.
M. Kayid   +3 more
openaire   +3 more sources

Mean Time to Failure with Preventive Maintenance

IEEE Transactions on Reliability, 1980
This paper considers a periodic pm (preventive maintenance) policy where pm reduces the age of an operating unit by x units of time. We obtain i) the mean time to failure and ii) the s-expected number of pm's before failure.
Toshio Nakagawa
openaire   +3 more sources

Comparison of mean time to first failure and mean up time

Microelectronics Reliability, 1983
Abstract Two unit standby redundant repairable system, parallel systems and series systems are studied. The time between failures and the repair time are assumed exponentially distributed. Expressions for mean time to first failure (MTTFF) and mean up time (MUT) have been obtained.
Chanan Singh, Sohrab Asgarpoor
openaire   +2 more sources

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