Results 31 to 40 of about 841,099 (297)

Large-Eddy Simulation and experimental study of cycle-to-cycle variations of stable and unstable operating points in a spark ignition engine [PDF]

, 2012
This article presents a comparison between experiments and Large-Eddy Simulation (LES) of a spark ignition engine on two operating points: a stable one characterized by low cycle-to-cycle variations (CCV) and an unstable one with high CCV.
Dugué, Vincent, Enaux, Benoît, Granet, Victor, Lacour, Corine, Poinsot, Thierry, Vermorel, Olivier   +5 more
core   +3 more sources

A Novel Nonlinear BWR Stability Indicator Based on the Sample Entropy

Science and Technology of Nuclear Installations, 2018
BWRs are thus far the simplest energy systems to transform fission energy into electrical power. However, there are still many aspects in their operation that, under certain conditions, may induce BWR unstable behavior. The default indicator to study BWR
Omar Alejandro Olvera-Guerrero, Alfonso Prieto-Guerrero, Gilberto Espinosa-Paredes   +2 more
doaj   +1 more source

THEORETICAL ANALYSIS OF THE PHENOMENON OF LEADERSHIP IN THE AGE OF VUCA

Вестник университета, 2018
The importance of studying leadership in uncertain conditions from the standpoint of an interdisciplinary approach is substantiated. The definition of VUCA is given. The features of modern socio-economic conditions are presented.
D. Veselovskiy, L. Mosina
doaj   +1 more source

A new forecasting method for failure time of creep landslide based on nonlinear creep behavior and new pre-warning criterion

Frontiers in Earth Science, 2022
The forecast of failure time of unstable slope and the definition of early warning threshold are very important for preventing landslide disaster and reducing its losses.
Shuo Zhang, Shuo Zhang, Tong Jiang, Xiangjun Pei, Runqiu Huang, Qiang Xu, Yushan Xie, Yushan Xie, Xuwei Pan, Longxiao Zhi   +9 more
doaj   +1 more source

Asymptotic inference for nearly unstable AR(p) processes [PDF]

, 1999
In this paper nearly unstable AR( p) processes (in other words, models with characteristic roots near the unit circle) are studied. Our main aim is to describe the asymptotic behavior of the least-squares estimators of the coefficients.
Pap, Gyula, van der Meer, Tjacco, van Zuijlen, Martien C. A.   +2 more
core   +1 more source

Stabilization of Centrifuges with Instabilities Due to Fluid-Structure Interactions: Various Control Approaches

International Journal of Rotating Machinery, 2001
Partially filled centrifuges exhibit unstable behavior over particular rotational speed ranges. To remove this unstable behavior, three different control approaches are presented which are experimentally implemented using a magnetic bearing.
Heinz Ulbrich, Adrian Cyllik, Guido Ahaus   +2 more
doaj   +1 more source

Noise delayed decay of unstable states: theory versus numerical simulations

, 2004
We study the noise delayed decay of unstable nonequilibrium states in nonlinear dynamical systems within the framework of the overdamped Brownian motion model.
A V Safonov, Abramowitz M, Agudov N V, Agudov N V, Agudov N V, Agudov N V, Agudov N V Spagnolo B D S Broomhead E A Luchinskaya P V E McClintock T Mullin, Arecchi F T, B Spagnolo, Ciuchi S, Colet P, Colet P, Doering C R, Dykman M I, Dykman M I, Fiasconaro A, Freund I A, Gammaitoni L, Gardiner C W, Gradshteyn I S, Haake F, Hänggi P, Malakhov A N, Malakhov A N, Mantegna R N, Mantegna R N, Mantegna R N, Mantegna R N, Moss F, N V Agudov, Pontryagin L S, R Mannella, Stocks N G, Stratonovich R L, Suzuki M, Suzuki M, Wackerbauer R   +36 more
core   +2 more sources

Non-classical Behavior of Moving Relativistic Unstable Particles [PDF]

Acta Physica Polonica B, 2017
24 pages, 7 figures, LaTeX2e, new sections and comments added, Acta Physica Polonica B - in ...
openaire   +2 more sources

Reinforcement learning building control approach harnessing imitation learning

Energy and AI, 2023
Reinforcement learning (RL) has shown significant success in sequential decision making in fields like autonomous vehicles, robotics, marketing and gaming industries. This success has attracted the attention to the RL control approach for building energy
Sourav Dey, Thibault Marzullo, Xiangyu Zhang, Gregor Henze   +3 more
doaj   +1 more source

Comment on "Late Time Behavior of false Vacuum Decay: Possible Implications for Cosmology and Metastable Inflating States"

, 2011
Comments on the paper "Late Time Behavior of false Vacuum Decay: Possible Implications for Cosmology and Metastable Inflating States" [arXiv:0711.1821] by L. M. Krauss and J.
Urbanowski, K.
core   +1 more source