نتایج جستجو برای: environmental turbulence

تعداد نتایج: 406509  

2000
ANDREAS MUSCHINSKI ROD FREHLICH MIKE JENSEN RON HUGO AXEL HOFF FRANK EATON BEN BALSLEY

Two state-of-the-art, high-resolution, in situ turbulence measurement systems, which can be deployed at altitudes well above the atmospheric surface layer, are compared: the Tethered Lifting System (TLS) of the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado, Boulder, Colorado, and the helicopter-borne turbulence measurement system HELIPOD of t...

2013
T. Kukulka A. J. Plueddemann P. P. Sullivan

[1] We present observations and simulations of large-scale velocity structures associated with turbulent boundary layer dynamics of a coastal ocean. Special purpose acoustic Doppler current profiler measurements revealed that such structures were frequently present, in spite of complex coastal environmental conditions. Large eddy simulation results are only consistent with these observations if...

2013
Elisabetta Raguseo Claudio Vitari Gabriele Piccoli

Dynamic Capabilities are often considered as the factor justifying the different degrees of success of organizations in turbulent environment. In this paper we investigate whether companies that have achieved a Digital Data Genesis dynamic capability hold an IT-based competitive advantage. Further, we evaluate whether environmental turbulence has a moderating effect on this relationship. We bas...

2013
Mohamed Zain Norizan M. Kassim

This paper examines management of change in SMEs in Malaysia during the time when the country was experiencing the Asian financial crisis. The types of changes investigated include change in objectives, change in work force, change in work practices, and change in strategies. The results clearly indicate that the SMEs carried out many organizational changes in response to the financial crisis. ...

2003
Mark A. Bourassa

An improved model is developed for the dependency of surface turbulent stress on wave characteristics. Recent studies have used differences between satellite and in situ observations to gain insights into the physical processes that might be related to air-sea interaction. Both scatterometers and buoys provide very accurate measurements of wind speed. Differences between these measurements can ...

2000
Rolf Walder Doris Folini

First attempts are made to derive astrophysical implications of the collision of clumped stellar winds from order of magnitude estimates and preliminary numerical simulations. Compared to colliding smooth winds, we find that the most significant differences occur in widely separated systems like WR 140. Clumped winds de-stabilize the wind-wind interaction zone of such systems. Highly compressed...

1997
K. JERRY ALLWINE XINDI BIAN DAVID WHITEMAN HAROLD W. THISTLE

VALDRIFT (valley drift) is a valley atmospheric transport, diffusion, and deposition model. The model is phenomenological—that is, the dominant meteorological processes governing the behavior of the valley atmosphere are formulated explicitly in the model, although in a highly parameterized fashion. The key meteorological processes treated are 1) nonsteady and nonhomogeneous along-valley winds ...

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