Výsledky vyhledávání - "Kyu Seong Kim"

Effect of Ca addition on soft magnetic properties of nanocrystalline Fe-based alloy ribbons

Autor: Keun Yong Sohn, Won-Wook Park, Kyu Seong Kim, Sun-I Kim, Mi-Rae Kim

Publikováno v: Metals and Materials International. 18:185-188

The effect of Ca addition on the magnetic properties of a nanocrystalline Fe-based alloy was investigated. A small amount of Ca (0.06 wt%) was added to the Fe-based alloy, which was then melt spun to fabricate thin ribbons with a thickness of ∼30 �

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f01ab567c1997a7146686aa634988ce
https://doi.org/10.1007/s12540-012-0024-z

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Approximate Variance of Least Square Estimators for Regression Coefficient under Inclusion Probability Proportional to Size Sampling

Autor: Kyu-Seong Kim

Publikováno v: Communications for Statistical Applications and Methods. 19:23-32

This paper deals with the bias and variance of regression coefficient estimators in a finite population. We derive approximate formulas for the bias, variance and mean square error of two estimators when we select a fixed-size inclusion probability p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49e53040a2512c24caef384380a69a4e
https://doi.org/10.5351/ckss.2012.19.1.023

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