نتایج جستجو برای: isochrone

تعداد نتایج: 312  

2016

Among patients with a Wolff–Parkinson–White (WPW) syndrome, approximately half will experience arrhythmia during their lifetime. Radiofrequency catheter ablation of the accessory atrioventricular pathway is the treatment of choice for this condition and is associated with a high success rate. Electrophysiology study is indeed the key procedure for identifying the target of radiofrequency ablati...

2000
A. V. M. T.

We present a brief summary of the ISO survey of AGB stars in 8 populous intermediate age clusters of the Magellanic Clouds. Totally, more than 100 AGB and RGB stars were observed at 4.5, 6.7 and 12 µm. We introduce a new method to estimate effective temperatures of oxygen-rich AGB stars, and derive precise estimates of M bol and T eff for a large population of AGB objects in both LMC and SMC. T...

2008
Aaron Dotter Brian Chaboyer Jason W. Ferguson

The ACS Survey of Galactic Globular Clusters, an HST Treasury Project, will deliver high quality, homogeneous photometry of 65 globular clusters. This paper introduces a new collection of stellar evolution tracks and isochrones suitable for analyzing the ACS Survey data. Stellar evolution models were computed at [Fe/H]= -2.5, -2.0, -1.5, -1.0, -0.5, and 0; [α/Fe]= -0.2, 0, 0.2, 0.4, 0.6, and 0....

1999
A. Weiss H. Schlattl

We present a grid of evolutionary calculations for metal-poor low-mass stars for a variety of initial helium and metal abundances. The intention is mainly to provide a database for deriving directly stellar ages of halo and globular cluster stars for which basic stellar parameters are known, but the tracks can also be used for isochrone or luminosity function construction, since they extend to ...

2015
Karolina Adrjanowicz Kamil Kaminski Marian Paluch Kristine Niss

In this paper, we study crystallization behavior and molecular dynamics in the supercooled liquid state of the pharmaceutically important compound ketoprofen at various thermodynamic conditions. Dielectric relaxation for a racemic mixture was investigated in a wide range of temperatures and pressures (up to 350 MPa), whereas crystallization kinetics for racemic and single enantiomers was studie...

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