도장작업시 유해인자들의 노출수준과 작업환경관리실태

이세기,문덕환,이채관,황용식,선병관,손병철,김대환,이창희,김휘동,이채언 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.5

Objectives: For the purpose of preparing the fundamental data and assessing the status of exposure level of chemical substances in painting process. Methods and Materials: The author determined the concentration of organic solvents, lead(Pb), Chromium(Cr), and Toluene-2, 4-diisocyanate(TDI) in air of painting process to 90 industries classified by 15 types of manufacturing industry during a period from Jan. 1st 2001 to Dec. 31st 2001. Results: The results were as follows: 1. The geometric mean level of each chemical substance was 0.1706 ppm for exposure index in organic solvents, 0.0019㎎/㎥ for Pb, 0.0024 ㎎/㎥ for Cr, and 0.0004ppm for TDI, respectively. 2. The exposure level of each chemical substances by type of painting was the highest in dipping and brush painting for organic solvent, in spray-painting for TDI, and in spray gun-painting for Pb and Cr, respectively. 3. The exposure level of each chemical substances by type of local ventilation equipment was higher in enclosed and booth type for organic solvents. Cr, and TDI, and in exterior type for Pb, respectively than those of other types. 4. The exposure level of each chemical substances by type of hazardous material arresting media was higher in using water for organic substances, in using bag filter for Pb, TDI, respectively than those of other types. Conclusion: According to above results, this study suggests that the exposure level by type of industry exceeded the exposure level in wooden furniture and metal furniture manufacturing industry for organic solvents and Pb, respectively.

부산지역 강하먼지 중 불용성 중금속 함유량

이용범,황용식,이창희,박명희,이채관,강동묵,김정원,전병일,문덕환 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.1

■ Objectives The purpose of this study was to estimate qualitatively various bulk deposition flux of insoluble heavy metal components by applying regional and seasonal distribution. our institution from January 1980 to December 31th, 2001. ■ Materials and Methods Dustfall particles were collected by the modified American dust jar (wide inlet bottle type) at 6 sampling sites in Pusan area from March, 1999 to February, 2000. Five chemical species (Cd, Cr, Mn, Ni and Pb) were analyzed by AAS(Perkin-Elmer 4100ZL). ■ Results The mean values of each heavy metal concentrations were Cd for 3.947 g/㎢/month, Cr for 0.191 ㎏/㎢/month, Mn for 0.375 ㎏/㎢/month, Ni for 0.176 ㎏/㎢/month, and Pb for 0.823 ㎏/㎢/month. ■ Conclusions Insoluble heavy metal amount of regional variations were found in order of industrial zone, coastal zone, commercial zone, agricultural zone and residential zone.

Time and Reality in Gabriel Garcia Marquez's One Hundred Years of Solitude and Vladimir Nabokov's Pale Fire

李龍官 水原大學校 1990 論文集 Vol.8 No.-

우리시대는 계시의 시대다. 계시라는 말속에는 이 세상의 종말이 가까웠다는 의미가 숨겨져 있다. 계시적 사고는 순화적 시간관에 바탕을 두고 있는 것이 아니라 직선적 시간관에 그 바탕을 두고 있다. 그것은 다가올 종말에 대해 위기의식을 조장한다. 그러나 역사적으로 볼 때 종말론은 그 어느 시대에도 존재했기에, 계시는 우리 눈앞에 임박해있기 보다는 항상 내재해 있다고 말할 수 있다. 우리는 위기의 순간을 창조함으로써 스스로에게 의미를 부여한다. 이 세상의 종말에 가서는 계시의 현현으로 허구적 문학은 파멸될 지경에 이를지도 모른다. 그러나 종국에 이르기 전까지 예언적 게임을 할 수 있다는 것이 포스트모더니즘 작가들의 기본 사고방식인 것이다. 20년대부터 대략 40여 년간을 풍미했던 모더니즘 작가들이 과거를 재생산해 냄으로써 과거와의 관계를 강조했다고 한다면, 60년대 이후의 포스트모더니즘 자가들은 과거와의 단절을 꾀하고, 역사에 의존하지 않고 종말과의 관계 속에서 현재를 추구한다고 볼 수 있다. 따라서 포스터모더니즘은 모더니즘에 비해 상대적으로 더 허무주의적이고 분열적인 성격을 띈다. 포스트모니즘은 언어, 시간, 역사, 리얼리티에 대한 회의감으로 얼룩져 있다. 본고는 포스트모더니즘 초기의 대표작품이라 할 수 있는 마르께스의 『백년간의 고독』과 나보코프의 『희미한 불꽃』을 실제 분석해 봄으로써 전술한 포스트모더니즘의 성향을 구체적으로 이해하는데 목적이 있다.

평행봉 Upward kip동작의 역학적 분석

李勇仁,權光善,權五奭 忠南大學校體育科學硏究所 1986 體育科學硏究誌 Vol.4 No.1

As upward kip motion is the basic motion on parallel bars, it is easily trained in the classes of physical education. The purpose of this study is to offer some useful data for teaching and improve the skill of upward kip motion . For this study, two members of the national team and a high-class male player in University were sampled at random. their motion was photographed with 16mm movie camera(48frames/sec) and the gravitational censer of the body was searched for through the drawing figure method. Upward kip motion was divided into 3 phases. And then the movement of the center gravity and the angle change of joint were analyzed and compared with mechanical method. The conclusions are as follows : 1. In phase 1, when kipping legs form an angle of 90 degrees with the parallel bars, the moving speed of center gravity on Subject A was 2.4 m/sec. that of Subject B 2.1 m/sec. that of Subject C 2.4m/sec. As we have seen, Subject A and C were of the same speed. and Subjects B was 0.3m/sec later than Subject A and B, so that I think that the moving speed of the conter gravity must be fast. 2. In phase 2. when the legs are in parallel with the parallel bars. hip joint angle of Subject A was Flex 151° degrees. Subject B Flex 136degrees, Subject C Flex 144 degrees. There fore I think that the legs must extend extend the most. 3. In phase 3, when the motion was perfected, elbow joint angle of Subject A in the last frame was Flex 178degrees, Subject B Flex 170 degrees, Subject C Flex 177degrees. Subject B was shown unstable motion because flexed more than Subject A and B . 4. The perfection of the upward kip motion in the parallel bars depend on the moving speed of body gravity when the kipping legs form an angle of W decrees with the parallel bars. the size of elbows angle. hip angle. and shoulder angle when the legs are in parallel . flexion and extention of elbow joint when the motion was finished, and the waste of the P. and F.

Modern Dramaturgy: Chekhov's The Three Sisters and O'Neill's Long Day's Journey into Night

李龍官 水原大學校 1997 論文集 Vol.15 No.-

본 논문의 목적은 소위 Ibsen에게서 비롯되었다고 간주되는 현대극이 Chekhov을 거쳐 O'Neill에 이르기까지 어떠한 극적 기법의 변화와 차이를 보이고 있는가를 고찰하기 위함이다. Chekhov의 The Three Sister와 O'Neill의 Long Day's Journey into Night는 아리스토텔레스적 전통에 입각한 Ibsen극과는 달리, 잘 짜여진 외부구조를 갖고 있지 않다. 그러나 그것들은 외견상, 산만한 외부구조를 각기 독특한 내부구조로서 극복한다. Long Day's Journey into Night는 시각적인 꿈과 안개의 내부구조, The Three Sister는 청각적인 음향효과의 내부구조를 사용하여 과거, 현재, 미래의 시제를 자유로이 넘나든다. 본고는 이러한 내부구조를 조성하는 요소들이 어떻게 효과적으로 어우러져서 극적 효과를 자아내는지 연구한다.

두개저 골절 환자의 임상적 고찰

이용성,송시헌,김성호,김관태,김윤 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.9

The authors analyzed 147 cases of basal skull fracture which were treated in the Department of Neurosurgery, Chungnam National University Hospital from Janwuy 1989 to December 1992. These fractures are difficult to diagnose by ordinary X-ray examination and are freguently inferred by clinical signs. The clinical features and radiological findings were reviewed. The results of the analysis are summarized as follows 1) The basal skull fractures were more common in men than women-the ratio being 6 1 1. 2) In decreasing order of cause of basal skull fractures were traffic accident~(77%), fall down, assault and slipping. 3) The minor head injury, Glasgow Coma Scale Score(GCS) of 13 to 15, was 79 cases(54%), the moderate head injury 40 cases(27%) and the severe head injury 18 cases(1996). 4) In decreasing order of clinical features were otorrhea(71 I) rhinorrhea(4856) and raccoon eye(33%) etc. 5) In decreasing order of the combined pathologies were skull fracture(55I 1, subdural hema-toma(l7%), epidural hematoma(l6%) and intraerebral hematoma(l2I) etc. 6) The facial nerve, vestibulocochlear nerve and optic nerve were the most commonly injured cranial nerve. 7) CSF leakage was noted in 139 cases and among them immediate type was far more common(%%) than the delayed type. 8) The incidence of meningitis was 5.4% and most of them associated with CSF leakage and the prophylatic antibiotic treatment has no effect to decrease infection rate. 9) In decreasing order of the frequency associated injuries were facial bone fracture (47%), clavicle fracture(19%), lower extremitics fracture(9%) and upper extremcties fracture(7%) etc.

고정상세포분리기의 개발 및 Cyclosporin A 생산을 위한 고정화 연속배양공정에의 적용

이태호,박성관,장용근,전계택 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.6

균사형성 미생물인 고정상곰팡이의 연속배양공정에 필수적인 효율적인 고정상세포분리기를 개발하고 이를 실제로 면역억제제인 cyclosporin A(CyA) 연속생산공정에 적용하였다. 점성이 큰 고분자인 carboxymethyl cellulose 용액을 이용한 실험에서 개발된 고정상 세포분리기는 분리능이 우수하여 고점도·고유속의 경우에도 고정성담체가 거의 유실되지 않았다. 이는 고정상세포분리기내에 설치된 공기유출관과 분리관의 역할에 기인하는 것으로 보인다. 또한 실제 곰팡이 세포를 이용한 고정상 연속배양(IPRS)의 경우 고정상세포분리기를 설치함으로써 담체밀도의 감소와 배양액내의 고농도(10g/l) 현탁 곰팡이 세포의 존재에도 불구하고 안정한 조업가능성을 보였다. 고정상 연속배양의 높은 희석속도에도 불구하고 균체 및 CyA의 생산성이 높게 나타났으며, 담체가 반응기 밖으로 거의 유출되지 않은 점으로 보아 고정상세포분리기의 우수한 성능 및 조업안정성을 확인할 수 있었다. We have developed an efficient immobilized cell separator for continuous operation of immobilized fungal cell cultures, and applied this separator to actual fermentation process for the production of cyclosporin A (CyA), a powerful immunosuppressant. In the experiments employing highly viscous polymer (carboxymethyl cellulose) solution, the decantor showed good separating performances at high solution viscosites and fast dilution rates. Air duct and cylindrical separator installed inside the decantor turned out to play key roles for the efficient separation of the immobilized cells. By installing the decantor in an immobilized perfusion reactor system (IPRS), continuous immobilized culture was stably carried out even at high dilution rate for a long period, leading to high productivities of free cells and CyA. Almost no immobilized biomass existed in effuluent stream of the IPRS, demonstrating the effectiveness of the decantor system for a long-term continuous fermentation. It was noteworthy that we could obtain these results despite of the unfavorable fermentation conditions, i.e., reduced density of the biosupports caused by overgrowth of cells inside the bead particles and existence of high density of suspended fungal ells (10 g/l) in the fermentation broth.

『베니스의 상인』재고

李龍官 水原大學校 1998 論文集 Vol.16 No.-

In The Merchant of venice, Shylock is a complex and powerful character, the villain and the victim coexist in him. As villain he is a threatening force against the Christian society. He is censured by all but Tubal, his Jew colleague and is called "devil" nine times. As victim, he is a scapegoat for the maintenance of the Christian society. In the trial scene, Antonio tries to force him to become a Christian; but it is impossible for Shylock, Jew to the core, to convert to Christianity. In the end, Shylock is involuntarily excluded from the comic community of the play. On the whole, he asks us to alternate between "particpant" and "spectator" of the action.

신경회로망에 웨이브렛 함수를 이용한 새로운 지능제어방식

이용구,이승형,이현관,엄기환 동국대학교 대학원 1997 大學院硏究論集-東國大學校 大學院 Vol.27 No.-

In this paper, we propose the hybrid system identification model and control method using neural networks. Proposed control method performs, for a nonlinear plant with unknown functions, system identification using an adaptive wavelet in a neural network, and then a nonlinear controller is designed with those identified informations. To identify a nonlinear function, which is not directly related to input signals, we can use an adaptive wavelet in three-layed neural network. In order to verify the usefulness of the proposed method, we simulate the proposed control method with cart pole system.

抗癌丹을 投與한 大腸癌 患者 83例에 대한 臨床報告

이용연,서상훈,유화승,최우진,조정효,이연월,손창규,조종관 대한한방종양학회 2000 대한한방종양학회지 Vol.6 No.1

Climical studies were carried out 83 cases of patients with colorectal cancer treated bv Hangamdan(抗癌丹) from January lth 1998 to September 30th 2000. The results were summarized as follows; 1. Distribution of those attached by colorectal cancer, by sex, showed that Male is more then Female, by age, showed that the numbber of fifties is majorith. 2. distribution of diagnostic stage, in descending order; stage Ⅲ(53%, top), stagew Ⅵ(45.8%). 3. The effects of maintenance and improvement in the symptoms with traditional oriental therapy(83.3%) and combined treatment of westem and oriental therapy(92.1%)were boserved. The effects of the symptoms were as folows: diarrhea(37.3%),abdominal pain (25.3%), general body weakness(22.9%), nausea(20.5%) and etc. in orders. 4. Analysis of hematology attached by colorectal cancer, maintenance and increasing of WBC(89.9%), RBC(74.7%), Hgb(81.1%), Platelet(92.4%) were Observed. After taken Hangamdan, the satety of the liver and kidney were as follows; maintenance and decreasting of AST(85.9%), ALT(94.8%) , GTP(87.5%), Creatinine(90.9%) were observed. 5. of IL-12 and IFN-λ attached by colorectal cancer, increasing of IL-12(53.3%), IFN-λ(80%) were observedl. 6. Analysis of QOL attached by colorectal cancer, maintenance and improvement of combined treatment of western and oniental therapy(89.6%), traditional oriental therapy(83.3%) were observed. 7. Analysis of survival in patients with Ⅳ stage of colorectal cancer, above 7 months(18.4%), 12 months(65.8%). 8. Analysis of antitumor effects, maintenance of traditional oriental therapy(83.3%) and maintenance and improvement of combined treatment of western and oriental therapy(80.5%) were observed. Analysis of tumor marker attached by colorectal cancer, maintenance and decreasing of CEA(78.8%) were boserved 9. Analysis of curative valuation, maintenance and improvement of traditional oriental therapy(83.3%), combined treatment of westem and oriental therapy(72.7%) were observed.