نتایج جستجو برای: kinematically admissible velocity field

تعداد نتایج: 914173  

Journal: :J. Symb. Comput. 1998
Jan Snellman

If K is a field, let the ring R′ consist of finite sums of homogeneous elements in R = K[[x1, x2, x3, . . .]]. Then, R′ contains M, the free semi-group on the countable set of variables {x1, x2, x3, . . .}. In this paper, we generalize the notion of admissible order from finitely generated sub-monoids of M to M itself; assume that > is such an admissible order on M. We show that we can define l...

Journal: :Monthly Notices of the Royal Astronomical Society 1999

Journal: :Annals of the Rheumatic Diseases 1998

2007
Uzi Zahavi Ariel Felner Jonathan Schaeffer Nathan R. Sturtevant

In the field of heuristic search it is well-known that improving the quality of an admissible heuristic can significantly decrease the search effort required to find an optimal solution. Existing literature often assumes that admissible heuristics are consistent, implying that consistency is a desirable attribute. To the contrary, this paper shows that an inconsistent heuristic can be preferabl...

2008
Warren R. Brown Timothy C. Beers Carlos Allende Prieto Margaret J. Geller Scott J. Kenyon Michael J. Kurtz

We present a complete spectroscopic survey of 2414 2MASS-selected blue horizontal branch (BHB) candidates selected over 4300 deg of the sky. We identify 655 BHB stars in this non-kinematically selected sample. We calculate the luminosity function of field BHB stars and find evidence for very few hot BHB stars in the field. The BHB stars located at a distance from the Galactic plane |Z| < 4 kpc ...

2009
Rafael Cubarsi

The maximum entropy approach is used to solve the classical moment problem of stellar kinematics. If an extended set of moments is available, the current method provides a linear estimation algorithm, which is given by a Gramian system of equations, that leads to a fast and suitable estimation of the velocity distribution. In particular, it can be used as an alternative approach for modelling m...

2005
J. Falcon - Barroso R. Bacon M. Bureau M. Cappellari R. L. Davies P. T. de Zeeuw E. Emsellem K. Fathi D. Krajnovic H. Kuntschner R. M. McDermid R. F. Peletier M. Sarzi

We present results from our ongoing effort to understand the morphological and kinematical properties of early-type galaxies using the integral-field spectrograph SAURON. We discuss the relation between the stellar and gas morphology and kinematics in our sub-sample of 24 representative Sa spiral bulges. We focus on the frequency of kinematically decoupled components and on the presence of star...

Mohamad Hojaji Saeed Toolani,

Designing and manufacturing the multiple jets simulator and experimental investigation of the multiple jets in crossflow at low velocity ratios have been studied Together with design and build a low-speed wind tunnel. A specific rake is used to determine the flow field pressure and changes in static pressure measured by pressure taps in the near field of the jets. There are generally three regi...

2008
J. Diaz-Alonso

We perform a general analysis of the dynamic structure of two classes of relativistic lagrangian field theories exhibiting static spherically symmetric non-topological soliton solutions. The analysis is concerned with (multi-) scalar fields and generalized gauge fields of compact semi-simple Lie groups. The lagrangian densities governing the dynamics of the (multi-) scalar fields are assumed to...

Journal: :iranian biomedical journal 0
محمود سلامی mahmoud salami fumitaka kimura tadaharu tsumoto

there are some conflicts about constancy of conduction velocity (cv) in a given tract of nervous system. by recording excitatory postsynaptic currents (epsc) in layer iv of the somatosensory cortex we tried to clear changes in cv of thalamocortical tract of mice aged 3 to 50 days old. field potentials and epsc were recorded in the layer iv by stimulation of ventrobasal nucleus of thalamus (vb) ...

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