Results 51 to 60 of about 1,571,082 (390)
About quasi-renewal processes and quasi-regenerative processes [PDF]
arXiv, 2021 We discuss the concepts of quasi-renewal and quasi-regenerative processes. We also propose a method for obtaining the upper bounds for the convergence rate of the distribution of a regenerative and quasi-regenerative process to a stationary distribution, if this process is ergodic.
arxiv
International Journal of Thermofluids, 2023 Significance of study: High combustion temperatures necessitate appropriate cooling systems in the combustion process. Regenerative cooling is used in the majority of chambers in liquid propellant engines.
Umar Farooq +8 more
doaj
Overcoming Bifurcation Instability in High-Repetition-Rate Ho:YLF Regenerative Amplifiers [PDF]
, 2015 We demonstrate a Ho:YLF regenerative amplifier (RA) overcoming bifurcation instability and consequently achieving high extraction energies of 6.9 mJ at a repetition rate of 1 kHz with pulse-to-pulse fluctuations of 1.1%. Measurements of the output pulse energy, corroborated by numerical simulations, identify an operation point that allows high-energy ...
arxiv +1 more source
Active suppression of temperature oscillation from a pulse-tube cryocooler in a cryogen-free cryostat: Part 1. Simulation modeling from thermal response characteristics [PDF]
, 2020 A cryogen-free cryostat cooled using a 4 K commercial GM or pulse tube cryocooler (PTC) displays temperature oscillations caused by the intrinsic working principle of the regenerative cryocooler. To dampen such oscillations usually requires either a large heat capacity or a large thermal resistance.
arxiv +1 more source
Regenerative cooling using elastocaloric rubber: Analytical model and experiments
Journal of Applied Physics, 2020 Caloric materials exhibit significant entropy variations when applying appropriate excitation, pushing forward the development of solid-state cooling systems.
G. Sebald +4 more
semanticscholar +1 more source
Energy Reports, 2021 Due to climate change and hot summers in most of Algeria’s regions, air conditioning has become a thorny issue, resulting in excessive energy consumption.
A.F. Boudjabi +6 more
doaj
On some quasi-regenerative reliability system [PDF]
arXiv, 2023 The paper investigates the convergence of the distribution of some non-regenerative reliability system with a warm reserve.
arxiv
FEBS Letters, EarlyView.Heart failure with preserved ejection fraction (HFpEF) accounts for half of the heart failure cases. It is characterised by microvascular dysfunction, associated with reduced pericyte coverage and diminished STAT3 expression in pericytes. Loss of STAT3 impairs pericyte adhesion, promotes senescence, and activates a pro‐fibrotic gene program.
Leah Rebecca Vanicek +15 more
wiley +1 more source
Combustion chamber Patent [PDF]
, 1969 Regenerative cooling system for rocket combustion chamber using coolant tubes in convergent-divergent ...
Gregory, J. W.
core +1 more source
Performance Analysis of the Multi-Stage Dew-Point Indirect Evaporative Air Cooler
Applied Sciences, 2022 In this study, a multi-stage regenerative-cross-flow dew-point evaporative cooler performance is analyzed and compared to the performance of a regenerative dew-point evaporative cooler.
Anna Pacak +5 more
doaj +1 more source