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全炳赫,金成德 한밭대학교 산업과학기술연구소 1993 논문집 Vol.1 No.-
In this paper, we describe the electronic circuit design of a spectrophotometer which can measure the reflection, transmission and absorption of lighting in a sample material or the characteristics of an emitting device. The visible and ultraviolet light can be obtained from a Halogen lamp and a Deuterium lamp. In order to detect the insensity of the light generated by such light sources. Multi Channel Photodiode array Detector(MCPD) is used. The MCPD has good properties such as high speed of data translation, wide spectral response and many sampling data per unit time compared to the other commercial light detectors. Direct Memory Access(DMA) method adapted to this spectrophotometer can be designed to read as well as write serially data in the memory. The DMA can be serially and parallelly interfaced with a computer via RS232C. Moreover, it is designed a software to the given network system. The constructed spectrophotometer was calibrated by using SRM2009 and 2031 which are waveform calibrating materials in KRISS. After the performances for several samples was measured by the designed spectrophotometer, the results show good spectral resolution and responsibility.
Renal Transplantation, Catholic Medical Center : Reporton 25 Cases
Lee, Chong Hoon,Chung, Woon Hyok,Koh, Yong Bok,Lee, Yong Kak,Min, Byong Sok,Lim, Soo Kil CATHOLIC MEDICAL CENTER 1976 Bulletin of the Clinical Research Institute Vol.4 No.1
In order to evaluate the etiological correlation between acute and chronic active liver diseases, and primary hepatocellular carcinoma, sera from 417 patients with biopsyproven various liver diseases were examined for hepatitis B surface antigen(HBsAg) by solid phase double-antibody radioimmunoassay(RIA) technique(1). Among 417 patients, 315 cases were composed of acute viral hepatitis, chronic hepatitis, liver cirrhosis and primary hepatocellular carcinoma and 72 cases with miscellaneous liver idseases unrelated to acute of chronic hepatitis. Remaining 30 cases showed the histologic features of normal or nonspecific reactive hepatitis.