Hepatic Cirrhosis Occurring in a Young Woodchuck(Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus(WHV)

Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea

連續보의 最適設計에 關한 硏究

鄭永植 울산대학교 1981 연구논문집 Vol.12 No.2

本 論文은 斷面이 연속적으로 變하는 要素들로 된 連續보의 最適設計를 爲한 한 Optimality Criteria 方法을 提示한다. 이 方法은 처음 Taig가 提案하였으며 以後 著者에 依하여 많은 部分이 修正되었다. 처짐 勾配를 求할때 흔히 하는 것처럼 假想일의 方法을 利用하여 應力勾配를 近似的으로 表現하였고 이 近似的 表現이 效率的일 뿐 아니라 最適設計를 求하는데 充分히 正確함을 알 수 있었다. 各 要素의 斷面이 연속的으로 變하므로 要素의 어떤 斷面의 높이 대신 節點에서의 斷面의 높이를 設計變數로 擇하여 正確性을 期하였으며 例題를 풀어 이 方法의 效率性과 正確性을 立證하였다. This paper presents an Optimality Criteria method, which is first proposed by Taig and then modified by the author, to obtain the optimum design of continuous beams with tapered elements. An approximation to stress gradients is made using the method of virtual work, as is often the case with deflection gradients, and proves not only efficient but also accurate enough to find the optimum design. The depth of sections at nodal points is preferably chosen for the design variable since the depth of the tapered elements is continuously varying. Worked examples demonstrate the efficiency and accuracy of the method.

建設現場에서의 마이크로컴퓨터 活用方案

鄭永植 울산대학교 1983 연구논문집 Vol.14 No.2

本 論文은 建設現場에서 工事管理를 爲한 小型 마이크로컴퓨터의 效果的인 活用方案을 提示하고 있다. Apple Ⅱ plus System에서 遂行되도록 設計된 프로그램 "ACTNET"는 네트워크의 解析, 工事進行의 追跡, 計劃의 修正 等을 할 수 있어 效果的인 工事管理가 可能하며 그외 工期의 시물레이션, 簡單한 橫造物의 設計 等에 쉽게 活用될 수 있는 方案도 보여주고 있다. 小型 마이크로컴퓨터는 費用負擔이 작아 어느 程度만 活用한다면 비록 小規模 現場이라 할 지라도 充分한 投資價値가 있음을 알 수 있다. 이와 같은 小型 마이크로컴퓨터의 使用을 촉진하기 爲하여는 適切한 소프트웨어의 開發이 重要하며 한편 使用이 擴大되면 소프트웨어의 開發을 誘發하게 되는 것이다. this paper proposes effective use of small-size microcomputers at construction sites for the project control The program package 'ACTNET' specifically designed to run on Apple Ⅱ plus System shows great capabilities to control projects by analysing activity networks, following the projects as carried out, and updating the schedules. Other possible uses of the microcomputers. e.g. simulation of project duration and design of simple structures, are also presented. Utilizing the microcomputers, even at a small construction sites, can pay back quickly if they are reasonably used. It is essential to provide relevant software facilities to encourage wider use, which in turn stimulates software developments.

기업 정보 시스템 구현을 위한 정보 모델링 도구 개발

우훈식,김철한,정영교 대전대학교 산업기술연구소 1999 산업기술연구소 論文集 Vol.10 No.2

The enterprise information modeling is the key concept that implements CALS/EC (Commerce At Light Speed/Electronic Commerce), SCM(Supply Chain Management), EI(Enterprise Integration) for the purpose of business process reengineering. In this study we developed an enterprise information modeling tool far the attempt of providing a GUI(graphical user interface) based modeler which supports FIPS 184 standard. The developed software is designed under object oriented concepts utilizing UML and developed by Visual C++.

南北韓對話와 東西獨의 接近方式

李瑛雨,鄭然植 경북대학교 법정대학 1980 法大論叢 Vol.18 No.-

The nations such as Korea, Germany, China, Pakistan and the Middle East are the example of political division and partition. Among those nations, particularly there are significant similarities and differences on the political division between Korea and Germany. This paper pursues to seek some findings in the process of approaches for the reunifications of the both countries, Korea and Germany. For this purpose this paper is analyzed under the similar descriptive chapters such as the emergence of partition and background of approaches, the main outcomes of talks and some perspectives for the further approaches of the both nations. With paying enormous efforts to achieve their utmost goal of the political reunifications Germanies have reached at a number of agreement for the cooperation of public health, economiy, postal service, various social, cultural aspects and so on In comparison with Germany, Koreas are still remaining in the first stage of the approach by the hindrance from the North which is nothing to be changed from the national liberation front line as a basic communist revolutionary strategy.

인삼 사포닌이 지용성 비타민(A와 E)의 흡수에 미치는 영향

朱忠魯,金斗植,全英運 연세대학교 자연과학연구소 1978 學術論文集 Vol.1 No.-

본 연구에서는 人蔘 Saonin 이 不水溶性 Vitamin인 Vitamin A와 Vitamin E의 吸收에 미치는 영향을 쥐(albino rat, 100~120g ♂)를 使用하여 觀察하고 다음과 같은 結果를 얻었다. 1) Vit. A 를 人蔘 Saponin 과 함께 Stomach tubing法으로 投與한후 쥐의 血淸을 조사한 結果 試驗群의 Vit.A의 含量은 對照群보다 2倍나 된다. 그러나 3時間後부터는 過量의 Vitamin含量이 減少되기 시작하였다. 試驗群의 肝의 Vitamin A含量도 對照群의 1.5倍였으며 3時間後에는 正常 Vitamin量으로 回復되었다. 2) Vit.E의 경우도 Vitamin E를 投與하고 40分後에 血淸과 肝에서의 Vit. E含量을 調査한 結果 試驗群이 對照群에 比하여 1.4~1.5倍였다. 3) 위와같은 實驗結果는 人蔘 Saponin이 Vit. A와 Vit. E의 吸收를 促進한다는 것을 意味하는 것이다. 4) 한편 試驗群의 腎藏에서의 Vitamin含量이 對照群에 比하여 훨씬 높은 것은 人蔘 Saponin이 不水溶性 Vitamin의 吸收뿐 아니라, 移動 및 排泄에도 크게 영향을 미칠것으로 예상된다. It was attempted in this experiment to observe the effect of ginseng saponin on the absorption of water insoluble Vitamins such as Vitamin A and Vitamin E using albino rat (150-200g,♂) and the following result were obtained. 1) When the Vitamin A and ginseng saponin were fed by stomach tubing, Vit. A concentration of blood serum of test group was found as much as twice that of control, but the Vitamin A content started to decrease 3 hours after. The Vitamin A content of the liver of test animal was also found about 1.5 times that of control and its value returned to normal value three hours later. 2) The Vitamin E contents of the blood and lover of test animals were found as much as 1.4-1.5 times that of control 40 minutes after feeding. 3)The above results suggested tha saponin stimulated the absortion of water insolubl Vitamin A and E 4) On the other hand, the contents of the above Vitamins in the kidney of test animals were significantly higher suggesting that the ginseng saponin also affects the transport of the above water insoluble Vitamins.

HPGe 검출기에 의한 지각방사선의 핵분광학적 연구

전재식,채하석,진응국,이철영,조혁,하정우 충남대학교 기초과학연구소 1992 연구논문집 Vol.12 No.-

고순도 Ge(HPGe) 검출장치를 사용한 현장측정을 통하여 지각방사선에 대한 핵분광학적 연구를 수행하였는바 지각방사선장의 핵분광학적 특성차이를 규명하기 위하여 지면의 자연방사성 핵종분포가 대표적 전형인 충남대학교 캠퍼스내 미경작 개활지 잔디밭과, 우라늄 함량이 높은 곳으로 알려진 괴산군 덕평리 지역 등 특이한 두 지역을 측정지점으로 선택하였다. 환산선량의 비교확인을 위하여 HPGe 분광측정은 3″ø×3″원통형 NaI(T1) 섬광검출기에 의한 분광측정과 동시에 수행하였으며 본 연구에 사용된 HPGe 검출기에 대한 스펙트럼-선량율 환산인자 G(E)는 감마선속이 검출기 축에 수직 입사하는 것으로 가정하고 Monte Carlo 방법으로 씨뮬레이션한 감응스펙트럼들을 사용하여 산출하였다. 이 G(E)를 사용하여 산출된 선량율(D˙_Ge)은, 이미 기준기급 전리함과의 비교 교정을 통하여 스펙트럼-선량 환산체계가 확립된 바 있는 NaI(T1) 검출기로 구한 선량율(D˙_NaI)과 만족스러운 일치를 보였으며 D˙_Ge와 D˙_NaI 사이의 상관계수는 +0.9988, 회귀 방정식의 기울기는 1.001을 나타내었다. 측정한 스펙트럼에서는 미미한 크기의 ^137Cs 감마선 피크가 확인되었으나 1960년대에 수행되었던 대기권 핵실험의 영향이나 Chernobyl 원전사고의 영향은 관측되지 않았다. Study of terrestrial gamma-rays was carried out by means of in-situ spectrometry using high purity germanium (HPGe) detector system. Two distinguishable fields of measurements, namely, uncultivated flat lawns in CNU campus where the distribution of natural radionuclides in the ground in known to be quite typical and well-known uranium rich area of Dukpyung-ri in Gwoesan-kun were selected in order to specify the difference in spectrometric characteristics of the fields. In-situ HPGe spectromety was accompanied by scintillation spectrometry with 3″ø×3″cylindrical NaI(T1) detector for comparative confirmation of derived dose rates from the spectra measured. Spectrum-dose rate conversion operator, G(E), of our particular HPGe detector was calculated using response spectra simulated by Monte Carlo method with an assumption of gamma-ray beams incident vertically to the detector axis. Resultant dose rates (D˙_Ge) showed satisfactory agreement with those obtained by NaI(T1) spectrometry and corresponding G(E) operation (D˙_NaI) of which system has been well-established through intercalibration with a reference ion chamber. Correlation coefficient and the slope of regression equation between D˙_Ge and D˙_NaI came out to be +0.9988 and 1.001, respectively. Though traceable height of ^137Cs gamma-ray peak was identified on the field spectrum, ground contamination of fission products released from atmospheric nuclear test performed in 1960s and possibly from Chernobyl accident was not observed as of today.

사후분해 시체에 대한 법의학적 접근

최영식,이상용,김유훈,조갑래,이봉우,양경무,정낙은,서중석,이한영,이원태,강현욱 大韓法醫學會 2000 대한법의학회지 Vol.24 No.2

Disposal of a homicide victim by dismemberment is rare, but individual cases are on record in most major medicolegal departments. Recognition of postmortem mutilation may be of importance in the interpretation of certain murders committed by sexual perverts and other mentally deranged individuals and sometimes performed for the sole reason of easier disposal of the body. Postmortem dismemberment is usually readily recognizable as such; The edges of the injuries are dry and lack evidence of bleeding. The joints may be disarticulated without fracture, or the use of an axe or saw may be evident from examination of bones. Parallel horizontal or oblique furrows in the bone surface are caused by skipping of the saw prior to establishing depth. Such patterns on the bone may assist in identifying the particular saw involved. So we report 25 dismembered corpses that autopsied in National Institute of Scientific Investigation. This paper can help in attempting to establish not only the first criminal investigation steps but also the medicolegal approach methods in unidentified and dismembered deaths.

음식점 비흡연 종업원의 간접흡연 노출량 지표로써 이산화질소 이용

양원호,고영림,한인규,이정민,정문식,정문호 대한위생학회 2000 대한환경위생공학회지 Vol.15 No.3

There, is increasing evidence suggesting that passive smoking increases the risk of lung cancer and other disease. though the potential health effects of exposure to environmental tobacco smoke (ETS) is a controversial subject. Since smoking in restaurant is prevalent in Korea. The concern on passive smoking exposure of non smoking service workers has been. requested. ETS exposure of non smoking service workers at restaurant was assessed because they have spent their times in restaurant indoors. The purpose of this study was feasibility of nitrogen dioxide(NO_(2))as exposure marker of ETS. The results of the study were as follows: 1. Average NO_(2), concentrations in indoor and outdoor at restaurants were 57.01ppb(±12.4) and 54.29ppb(±9.54), respectively. Comparing office-workers, service-workers at restaurants were exposured highly. 2. The personal NO_(2) measurement as exposure marker of ETS could cause The exposure error because NO_(2) can he generated by combustion appliances in indoor. 3. Service-workers spent their most time (86.6%) in indoor. Mean time spent at restaurant indoors and at home was 9.4 hours and 10.9 hours. respectively. 4. Personal NO_(2) levels correlated with indoor NO_(2) concentrations of restaurant (r=0.70) and of their home (r= 0.52) rather than of outdoor NO_(2) concentration of restaurant (r=0.35). The causes of personal NO_(2) exposure of non-smoking service-workers were considered as smoking of guests and combustion appliance indoors. 5. Personal NO_(2) exposures were estimated using Monte-Carlo simulation and time-weighted model. Estimated personal NO_(2) level was 47.2ppb (±8.3).

SPORTS 外傷에 關한 調査硏究 : Centering around 88 Olympic with representative player '88서울올림픽男子代表選手를 中心으로

盧日煥,姜忠植,金達永,金興植,朴贊弘,元忠熙,姜信一,金正洙,朴晶來,李哲遠,林鎬根 公州大學校스포츠科學硏究所 1988 스포츠科學硏究所論文集 Vol.- No.2

According to the investigation made by analyzing cause of the detail about sports injury. We make this things an object of all the male representative players 254 out of 286 (88.81%) that took part in the whole event from April 15, 1988 to September 16, 1988 in Seoul Olympic Games. The results are as follows. 1. The representative players in Korea started in the athlete life at age 13.1 on the average. Gymnast early started at age 8.4 and yachtist was later at age 18 in the athlete life. 2. There are about 5.7 cases on the outbreak of the sports trauma per person of player a year. This came into existence near the ankle at the high rate of damage formed 11.90%. 3. A sort of sports injury in analysis muscular bruise broke out at the highest rate of occurrence formed 15.70%. 4. The greater part of representative players themselves the injury of trauma by massage (12.53%). Some of them undergo medical treatment to the specialist hospital once a year on the average. Most of hockey players have had experience in this kind of injury treatment three times one year to per person of players. A few of them showed 0.15 times per person a year. 5. Most of representative players have been periodically to the orthopedist formed 27.59 (732) out of all 2653 cases at the high rate of fact. Especially a sort of injury in analysis, the injury of ankle region showed the percentage 11.86 (704) out of all 5,937 cases at the highest rate. 6. The period of medical treatment of the representative players in Korea came out about 14.7 days. Besides period of the other player's treatment came out mostly from one to five days formed 44.82%(935 cases) 7. Manyof them have been roughly treated with muscular bruise in analysis of sports injury. They were taking pains with muscular bruise formed 15.65% (1003) out of all 6408 case. 8. In major cause of sports injury came into existence during the training with waste of physical stamina formed 35.89% and were beyond their power with practicing the game formed 48.09%. Also, a sort of those were brought about the cause of sports injury with desire of outcome too much during in the game formed 44.20%