نتایج جستجو برای: turbulence level
تعداد نتایج: 1115334 فیلتر نتایج به سال:
The intermediate oscillatory phase during the L-H transition, termed I-phase, has been studied in the EAST superconducting tokamak by employing a newly developed dual gas puff imaging (GPI) system near the L-H transition power threshold. The experimental observations suggest that the oscillatory behavior appearing at the L-H transition could be induced by the synergistic effect of the two compo...
Turbulence research has reached a mature stage, even though at the most fundamental level turbulence itself remains a mystery. The phenomenology and physical mechanisms of the separate regimes of twoand threedimensional, geostrophic, stratified, gravity-wave, and boundary-layer turbulence are all now fairly completely established. They describe well the nature of geophysical turbulence at vario...
The health care environment was once regarded as safe and secure for patients and staff. Turmoil and change have pervaded the U.S. health care system since the 1980s, contributing to a state of chaos and instability. Today’s health care work environment can therefore be characterized as turbulent—it is in a state of unrest, disturbance, agitation, or commotion. There are many sources of turbule...
Abstract In this article, we introduce the special issue on conceptualising nexus between macro‐level ‘turbulence’ and worker experience . We discuss as economic, political, social, technological, environmental crises occurring in macro‐environment affecting world of work. argue that human resource management plays a critical role supporting not only organisation, but also workers, to navigate ...
To overcome sinking, plankton have devised various types of strategies. One is swimming, that is, an active, energy-consuming self-propulsion than can oppose gravitational sinking. Other phytoplankters can modify their buoyancy, becoming, at least for some time, positively buoyant. Others can exploit the turbulence in the mixed layer, using it to stay suspended for longer times. This latter opt...
The origin of strong magnetic fields in the Universe can be explained by amplifying weak seed fields via turbulent motions on small spatial scales and subsequently transporting the magnetic energy to larger scales. This process is known as the turbulent dynamo and depends on the properties of turbulence, i.e., on the hydrodynamical Reynolds number and the compressibility of the gas, and on the ...
This review paper is devoted to a presentation of recent progress in wave turbulence. I first present the context and state of the art of this field of research both experimentally and theoretically. I then focus on the case of wave turbulence on the surface of a fluid, and I discuss the main results obtained by our group: caracterization of the gravity and capillary wave turbulence regimes, th...
The nonlinear mean-field dynamo due to a shear-current effect in a nonhelical homogeneous turbulence with a mean velocity shear is discussed. The transport of magnetic helicity as a dynamical nonlinearity is taken into account. The shear-current effect is associated with the W×J term in the mean electromotive force, where W is the mean vorticity due to the large-scale shear motions and J is the...
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