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김승곤,허영회,박광준 대한방사선방어학회 1984 방사선방어학회지 Vol.9 No.1
核分裂 및 放射化生成物質에서 放出하는 여러가지 감마선들은 核燃料를 破壞하지 않고도 推出할 수 있는 많은 情報를 包含한다. 그러나 半導體 檢出器에서 얻은 복잡한 스펙트럼에서 이러한 정보를 推出하기가 容易하지 않기 때문에 電算코드의 使用이 必要하게 된다. 本 硏究에서는 그동안 國際的으로 널리 普及되어 使用되는 감마선 分析 프로그램들의 長點을 취하여, 감마선은 물론 X-線의 스펙트럼도 피팅(fitting)하여 피이크의 중심과 면적을 正確히 計算할 수 있는 전산코드 CAERI를 開發하였다. CAERI는 FORTRAN으로 쓰여있고, 특히 固有輻射線幅(natural line width)을 무시할 수 없는 X-線의 피이크 表現函數인 Voigt 函數에 대해서는 다른 X-線 分析 프로그램들이 使用한 간단한 近似式 대신에, 더욱 正確한 無限級數近似式을 사용하였다. 특히 CAERI는 U이나 Pu과 같은 重元素의 核種分析時에 直面하는 감마선과 U이나 Pu의 X-線이 任意로 ()()하여 共存하는 복잡한 스펙트럼까지도 取扱할 수 있다. ()Lu감마선과 ()U K()X-線의 試驗스펙트럼을 피팅하여 다른 프로그램들의 피팅결과와 비교했을 때 좋은 一致를 보았다. A great variety of nuclear gamma rays emitted from fission and activation products of spent nuclear fuel contains much information that can be clicited without affecting the integrity of the fuel elements. But the extraction of such information form the comples spectrum is difficult and requires computer codes. In the present work, a versatile code "CAERI" was developed which located peaks and calculates their areas for X-rays as well as gamma rays using elegant features of some widely used program for gamma-ray peak fitting. "CAERI"coded in FORTRAN used infinite series approximation more accurate than other workers various simple, piecewise series approsimations for evaluations of the Viogt function which represents the X-ray peak with non-negligible natural line width. "CAERI" can handle even a complex multiplet consisting of peaks from X-rays and gamma rays in arbitray mixture, which one often encounters in the isotopic analysis of heavy elements such as U and Pu. The results of the fitting performed on the test spectra of ()Lu ()-ray and ()U K() X-ray show good agreement with those by previous workers.
위장관을 침범한 Henoch-Sch o¨nlein purpura 1예
이승곤,김채규,서종옥,이호영,이호준,정회상,박유환,정춘해 朝鮮大學校 附設 醫學硏究所 1996 The Medical Journal of Chosun University Vol.21 No.2
Henoch-Scho¨nlein purpura(H-S purpura) is a systemic necrotizing vasculitis of small vessels that is characterized by nonthrombocytopenic palpable purpura on the buttocks and extremities, arthritis of knees and ankles, glomerulonephritis, and colicky abdominal pain, histologically characterized by leukocytoclastic vasculitis. Gastrointestinal involvement with colicky abdominal pain and GI bleeding, most frequently in jejunum and ileum, occurs in above a half of all patients, but common in children. We performed GI endoscopy in a case of H-S Purpura. Gastroduodenoscopic findings showed erythemas and erosions in gastric antrum, and mucosal edema and petechiae in duodenal 2nd portion. Colonoscopic findings showed 5-10㎜ sized multiple shallow hemorrhagic ulcers in transverse and descending colons We report a case of H-S purpura involving colon with literatural review.
徐承德,金哲會,權武男 慶尙大學校 1972 論文集 Vol.11 No.-
Backwater curves were first applied to the long, smooth profile of the water surface upstream from a dam or other obstruction in a river channel. There are several methods for determining backwater curves in low-velocity river channels. Each of the methods is based on Bernoullis energy theorem and Mannings friction formula. The most common type of backwater Problems is the determination of water-surface elevations in a river channel upstream a station or Point to which the discharge and water-surface elevation are known. Flood routing identifies the procedure by which a flood discharge hydrograph at any point on the stream is determined from a known discharge hydrograph at some point upstream. It is generally necessary to use approximate flood-routing methods that either ignore some of the factors affecting flood wave movement or are based upon simplifying assumptions in regard to such factors. Of the many methods for the flood routing or storage analysis, the Muskingum method has mainly been applied to a natural river channel and the Modified Pul's method to a reservoir and weir respectively. In this thesis, Backwater and flood routing problems are analysed jointly. 1. Backwater curves at design water level 2.40m M.S.L. In case of natural river channel, the following theorem was applied ?? ?? ?? where Q=192.0 ㎥/Sec, A=300, 7㎡, R=2.65m, n=0.03 as the result, 18cm back water height was derived at the length of 5.3km, (refer to tablee 12). In case of intakegate established, Bresse formula was applied ?? ?? using the above, l=25,015.1-10,000h+?? was derived and 30.2cm of backwater height estimated at the length of 5.3km., In eventual, 2.2cm of backwater height difference between two cases were calculcted. 2. Flood routing at the design storage capacity of 1,964,950㎣(design water level of 2.40m M.S.L.) Discharge capacity of the Intakegate requires 36mins to drop the height of 2.40 M.S.L. to 0.75m M.S.L. at no rainy condition, and considering 220mm of maximum daily rainfall in flood time, 60mins were required to drop the gage height to the 0.75m M.S.L. During the control period of 60mins, the water level in each point was followings, Baikgoo: 2,415m M.S.L.(Lowest ground height: 2.52m) Banwol: 2.67m (2.72m) Masan: 2.60m (3.07m) Dodo: 2.91m (3.28m) Refering to the above results, a damage may not be met by those backwater curve and flood.
모 형광등업체에 있어서의 공기중 수은농도 및 요중 수은량 조사
박승회,김광종,장성훈,차철환 大韓産業醫學會 1989 대한직업환경의학회지 Vol.1 No.2
In order of interpret the relationship among many variables, urinary mercury and the same time mercury concentration in air were measured for 254 workers of a fluorescent lamp manufacturing factory. And monthly consumption amounts, numbers of monthly producing fluorescent lamps, numbers of inferior lamps numbers of breakage lamps, numbers of vacuum pumps and frequencies of mercury infusion were also investigated from January 1988 to March in 1989. The results were as follows; 1. On the mercury concentration in air by producing line and by working site, all of them were exceed the threshold limit value (0.05mg/㎥). 2. The highest mercury concentration in air by sampling was found at the floor of workplace (0.334mg/㎥) and next were at vacuum exhaustion prmp (0.183mg/㎥), and breathing zone of workers(0.103mg/㎥) in order. 3. The highest mean of the mercury concentration in urine by producing line was the automatic exhausting line (80.8㎍/1) and next were high speed exhausting line (72.4㎍/1), and Manual exhausting line (35.8㎍/1) in order. Distribution of workers of the mercury concentration in urine more than 200㎍/1 by working site was the highest (10%) in the vacuum exhaustion pump part and next were sealing part (6.6%), packing part (4.6%), and stem part (4.1%) in order. 4. The correlation coefficient between mercury concentration in urine and in air was the highest(0.302) and next were numbers of breakage lamps (0.223), frequencies of mercury infusion (0.223), numbers of inferior lamps (0.205) in order.