نتایج جستجو برای: kinetic energy

تعداد نتایج: 734235  

2015
Johan L. van Leeuwen Cees J. Voesenek Ulrike K. Müller

cdynp,i; cfric,i constants used to estimate the external torque per unit length on the body due to dynamic pressure and skin friction CoM centre of mass of the body; the centre of mass of a body segment is indicated as the segmental CoM. dpf days post fertilization Ekin,body total kinetic energy of the body ML2T−2 Ekin,int ‘internal’ kinetic energy of the body ML2T−2 Etr,CoM kinetic energy due ...

Journal: :Physical review letters 2007
E Kroupp D Osin A Starobinets V Fisher V Bernshtam Y Maron I Uschmann E Förster A Fisher C Deeney

The ion-kinetic energy throughout K emission in a stagnating plasma was determined from the Doppler contribution to the shapes of optically thin lines. X-ray spectroscopy with a remarkably high spectral resolution, together with simultaneous imaging along the pinch, was employed. Over the emission period, a drop of the ion-kinetic energy down to the electron thermal energy was seen. Axially res...

Journal: :Physical review letters 2004
Th A Maier M Jarrell A Macridin C Slezak

Pairing occurs in conventional superconductors through a reduction of the electronic potential energy accompanied by an increase in kinetic energy. In the underdoped cuprates, optical experiments show that pairing is driven by a reduction of the electronic kinetic energy. Using the dynamical cluster approximation we study superconductivity in the two-dimensional Hubbard model. We find that pair...

2008
PAUL A. O’GORMAN TAPIO SCHNEIDER

As the climate changes, changes in static stability, meridional temperature gradients, and availability of moisture for latent heat release may exert competing effects on the energy of midlatitude transient eddies. This paper examines how the eddy kinetic energy in midlatitude baroclinic zones responds to changes in radiative forcing in simulations with an idealized moist general circulation mo...

2012
U. Brosa

Strutinsky-type calculations indicate that the potential energy favors four channels in the nuclear fission of 252Cf. The connection of this finding with experimental results on the dis­ tribution of fragment mass, total kinetic energy, neutron multiplicities, and relative abundances is discussed. Similar calculations for 227Ac, 236U, and 258Fm show that the changing preponder­ ance of the four...

2011
David S. Choi Adam P. Showman

0019-1035/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.icarus.2011.10.001 ⇑ Corresponding author. Current address: ORAU/ Center, Greenbelt, MD 20771, USA. Fax: +1 301 286 1 E-mail address: [email protected] (D.S. Choi). We present suggestive evidence for an inverse energy cascade within Jupiter’s atmosphere through a calculation of the power spectrum of its kinetic energy and its c...

2016
Benjamin Scheifele Stephanie Waterman Jeff Carpenter

We present new observations from a microstructure-equipped ocean glider in the southeastern Beaufort Sea of the Canadian Arctic. The glider measured 345 quasi-vertical profiles of microstructure shear and finescale temperature and salinity. We use these measurements to calculate the rate of dissipation of turbulent kinetic energy and to assess the strength of turbulent mixing. The region is cha...

2009
Siming Liu Lyndsay Fletcher

Most theoretical investigations of particle acceleration during solar flares cannot be applied to observations for detailed study of the time evolution. We propose a phenomenological model for turbulence evolution and stochastic particle acceleration that links observations to the energy release and particle acceleration through two coefficients characterising particle interactions with turbule...

2000
C. G. Rodriguez

hisol isolator height [m] k turbulence kinetic energy [m2/s2] M Mach number p pressure [Pa] T temperature [°K] x axial (streamwise) coordinate [m] y vertical coordinate [m] yi mass-fraction of specie i y+ dimensionless vertical turbulence coordinate z lateral coordinate [m] φ equivalence ratio μ viscosity [N s/m2] ηc combustion efficiency ηm mixing efficiency ρ mass density [kg/m3] ω specific d...

2007
L. Jackson R. Hallberg S. Legg

We present a new parameterisation for shear-driven, stratified, turbulent mixing which is pertinent to climate models, in particular the shear-driven mixing in overflows and the Equatorial Undercurrent. Critically for climate applications this parameterisation is simple enough to be implemented implicitly, which allows the parameterisation to be used with timesteps that are long compared to bot...

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