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1,108 results on '"Huh K"'

160. A case of esophageal and endobronchial anthracosis

Author

Yang, J., primary, Kim, Y., additional, Kim, K., additional, Koo, H., additional, Kim, S., additional, Lee, T., additional, Im, E., additional, Huh, K., additional, Choi, Y., additional, Kang, Y., additional, and Kwon, S., additional

Published
2010
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161. Effects of As Doping on Properties of ZnO Films

Author

YONSEI UNIV SEOUL (REPUBLIC OF KOREA), Huh, K. S., Hwang, D. K., Bang, K. H., Hong, M. K., Lee, D. H., YONSEI UNIV SEOUL (REPUBLIC OF KOREA), Huh, K. S., Hwang, D. K., Bang, K. H., Hong, M. K., and Lee, D. H.

Abstract

A series of ZnO thin films with various deposition temperatures were prepared on (100) GaAs substrates by radio-frequency magnetron sputtering using ZnO target. The ZnO films were studied by field emission scanning electron microscope(FESEM), x-ray diffraction(XRD), photoluminescence(PL) cathodoluminescence(CL), and Hall measurements. The structural, optical, and electrical properties of the films were discussed as a function of the deposition temperature. With increasing temperature, the compressive stress in the films was released and their crystalline and optical properties were improved. From the depth profile of As measured by secondary ion mass spectrometry(SIMS), As doping was confirmed, and, in order to activate As dopant atoms. post-annealing treatment was performed. After annealing treatment, electrical and optical properties of the films were changed., Pub in: Materials Research Society Symposium Proceedings, Volume 692. This article is from ADA405047 Progress in Semiconductor Materials for Optoelectronic Applications Symposium held in Boston, Massachusetts on November 26-29, 2001.

Published
2002

167. Endoscopic evaluation of significant gastrointestinal lesions in patients with iron deficiency with and without anaemia: a Korean Association for the Study of Intestinal Disease Study

Author

Park, J. S., primary, Park, D. I., additional, Park, S. K., additional, Choi, J. S., additional, Kim, Y. H., additional, Chang, D. K., additional, Son, H. J., additional, Kim, J. E., additional, Kim, J. O., additional, Lee, S. H., additional, Kim, H. S., additional, Sin, J. E., additional, Lee, S. G., additional, Lee, S.-Y., additional, Park, S. J., additional, Park, C. H., additional, Baek, I. H., additional, Jang, B. I., additional, Jeen, Y. T., additional, and Huh, K. C., additional

Published
2008
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194. ??-CELL DYSFUNCTION RATHER THAN INSULIN RESISTANCE IS THE MAIN CONTRIBUTING FACTOR FOR THE DEVELOPMENT OF POSTRENAL TRANSPLANTATION DIABETES MELLITUS

Author

Nam, J. H., primary, Mun, J. I., additional, Kim, S. I., additional, Kang, S. W., additional, Choi, K. H., additional, Park, K., additional, Ahn, C. W., additional, Cha, B. S., additional, Song, Y. D., additional, Lim, S. K., additional, Kim, K. R., additional, Lee, H. C., additional, and Huh, K. B., additional

Published
2001
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200. The use of visible and near-infrared spectroscopy for the analysis of soil water repellency.

Author

Kim, I., Pullanagari, R. R., Deurer, M., Singh, R., Huh, K. Y., and Clothier, B. E.

Subjects
NEAR infrared reflectance spectroscopy, SOIL moisture, LAND use, LEAST squares, HYDROPHOBIC compounds, ESTIMATION theory, MULTIVARIATE analysis, DIMENSIONAL analysis
Abstract

This study investigated the potential of visible/near-infrared reflectance spectroscopy ( Vis- NIRS) to predict soil water repellency ( SWR). The top 40 mm of soils ( n = 288) across 48 sites under pastoral land-use in the North Island of New Zealand, which represented 10 soil orders and covered five classes of drought proneness, were analysed by standard laboratory methods and Vis- NIRS. Soil WR was measured by using the molarity of ethanol droplet ( MED) and the water drop penetration time ( WDPT) tests. Soil organic carbon content (% C) was also measured to examine a possible relationship with SWR. A partial least squares regression ( PLSR) model was developed by using Vis- NIRS spectral data and the reference laboratory data. In addition, we explored the power of discrimination based on WDPT classes using partial least squares discriminant analysis ( PLS-DA). The PLSR of the processed spectra produced moderately accurate prediction for MED ( R2val = 0.61, RPDval = 1.60, RMSEval = 0.59) and good prediction for % C ( R2val = 0.82, RPDval = 2.30, RMSEval = 2.72). When the data from the 10 soil orders were considered separately and based on soil order rather than being grouped, the prediction of MED was further improved except for the Allophanic, Brown, Organic and Ultic soil orders. The PLS-DA was successful in classifying 60% of soil samples into the correct WDPT classes. Our results indicate clearly that Vis- NIRS has the potential to predict SWR. Further improvement in the prediction accuracy of SWR is envisaged by increasing the understanding of the relationship between Vis- NIRS and the SWR of all New Zealand soil orders as a function of their physical properties and chemical constituents such as hydrophobic compounds. [ABSTRACT FROM AUTHOR]

Published
2014
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