نتایج جستجو برای: 1223

تعداد نتایج: 741  

Journal: :Computer Speech & Language 2009
Xunying Liu Mark J. F. Gales Philip C. Woodland

Language models (LMs) are often constructed by building multiple individual component models that are combined using context independent interpolation weights. By tuning these weights, using either perplexity or discriminative approaches, it is possible to adapt LMs to a particular task. This paper investigates the use of context dependent weighting in both interpolation and test-time adaptatio...

2005
A. D. Schwope V. Hambaryan F. Haberl C. Motch

We present multi-epoch spectral and timing analysis of the isolated neutron star RBS1223. New XMM-Newton data obtained in January 2004 confirm the spin period to be twice as long as previously thought, P spin = 10.31 s. The combined ROSAT, Chandra, XMM-Newton data (6 epochs) give, contrary to earlier findings, no clear indication of a spin evolution of the neutron star. The X-ray light curves a...

Journal: :Coatings 2021

Two kinetic approaches (integral method and Dybkov method) have been applied for simulating the boriding kinetics of AISI M2 steel in range 1173 to 1323 K, by including effect incubation periods. For integral method, a peculiar solution resulting system differential algebraic equations (DAE) has employed assessing diffusivities boron FeB Fe2B. The activation energies Fe2B deduced from both comp...

Journal: :Chemical reviews 2011
Warren R J D Galloway James T Hodgkinson Steven D Bowden Martin Welch David R Spring

Numerous species of bacteria employ a mechanism of intercellular communication known as quorum sensing. This signaling process allows the cells comprising a bacterial colony to coordinate their gene expression in a cell-density dependent manner.1-3 Quorum sensing is mediated by small diffusible molecules termed autoinducers that are synthesized intracellularly (throughout the growth of the bact...

2017
Julio I. Osende Olea

Rev Esp Cardiol 2002;55(12):1223-5 1223 The sharp reduction in coronary blood flow produced by a thrombus generally precipitates acute or unstable coronary syndromes (ACS). Unlike venous thrombosis, arterial thrombosis takes place in areas where the vessel wall is damaged in some way. In the coronary arteries, the lesion usually is a fissured or ruptured atheroma plaque, endothelial denudation ...

Journal: :Journal of Research of the National Institute of Standards and Technology 1996

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