نتایج جستجو برای: parameter determination

تعداد نتایج: 459753  

Journal: :The International Conference on Applied Mechanics and Mechanical Engineering 1986

Journal: :The Astrophysical Journal 2022

We identify 20 F-type Herbig stars and provide a list of 22 pre-main-sequence candidates from LAMOST DR8. The effective temperature, distance, extinction, stellar luminosity, mass, radius are derived for each star based on optical spectra, photometry, Gaia EDR3 parallaxes, evolutionary tracks. According to spectral energy distributions, 19 belong Class II YSOs, one belongs the flat-spectrum cla...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2008

ژورنال: پژوهش های ریاضی 2022

So far censored samples have been studied by many researchers. One of the most important methods of censoring is progressively type II censoring. An interesting issue in the discussion of censoring is determination of the optimal sample size. Various factors are influential in determining the appropriate sample size, the most important of which is the sampling cost criterion. In this paper, ass...

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