일산화탄소에 폭로된 흰쥐의 심장 당원질 및 효소활성에 미치는 영향에 관한 조직화학적 연구

서병희,이재현 慶熙大學校 1983 論文集 Vol.12 No.-

This experimental studies were performed to determine the changes of myocardial glycogen contents and enzyme activities during carbon monoxide (Co) exposure in rat. The experimental rate (Sprague-Dawley strain) were exposed by 1000ppm and 5000ppm of Co. for 5 minutes to 24 hours. Histochemical studies had been made on changes of glycogen content and activities of adenosine triphosphatase, cytochrome oxidase and lactate dehydrogenase, according to different exposure conditions. The following results were obtained; 1. The glycogen content of myocardium was decreased moderately in groups after 1 hour exposure with 5000ppm of Co and 4 hours exposure with 1000 ppm of Co. 2. The adenosine triphosphatase activity of myocardium was decreased moderately in groups after 1 hour exposure with 5000 ppm of Co and 8 hours exposure with 1000ppm of Co. 3. They cytochrome oxidase activity of myocardium was decreased moderately in groups after 15 minutes exposure with 5000ppm of Co. In exposure groups with 1000ppm of Co, the cytochrome oxidase activity was decreased moderately from 30 minutes to 24 hours groups, but 2 and 4 hours was recovered temporarily as normal group. 4. The lactate dehydrogenase activity of myocardium was decreased moderately in groups after 1 hour exposure with 5000ppm of Co and 8 hours exposure with 1000ppm of Co.

레이저 클래딩 중첩도가 표면특성에 미치는 영향

이제훈, 서무홍, 한유희 한국레이저가공학회 2000 한국레이저가공학회지 Vol.3 No.1

A 4kW RS840 CO2 laser with a powder auto-feeding apparatus has been used to deposit multiple overlapping tracks of Ni-base superalloy on to low carbon steel. It was found that the surface roughness(turbulence) of an overlapped cladding layer decreased with the increase of the overlapping ratio in an oscillating manner. When the overlapping ratio had values of 0.62, the surface turbulence was lowest. Overlapping ratio offer significant potential for improvement of materials surface properties such as corrosion performance and wear resistance. This paper reports that the overlapping ratio shows best corrosion resistance. The tensile residual stresses generated at the higher overlapping ratio(>0.45) and the element concentration of Fe increased in the surface layer at the lower overlapping ratio(<0.45) may lead to worse corrosion resistance.

서울지역 노인 급식 프로그램 수혜자의 만족도 및 요구도 분석

서희재,홍민지,장영애,김복희,이행신,김초일 대한영양사협회 2003 대한영양사협회 학술지 Vol.9 No.2

In the process of devising an efficient meal service system for the elderly, 478 elderly were interviewed at 6 different social centers with the elderly meal service program in Seoul area to monitor degree of satisfaction and/or needs of the beneficiaries regarding the program. The survey was conducted during the month of December 2002 by well-trained interviewers using self-developed questionnaire. Results were analyzed statistically using SAS package program. Most of the beneficiaries were low economic class and 76% of them had doctor diagnosed disease(s). Mean satisfaction score of the beneficiaries of congregate meal service was 3.72 out of 5. For most of the questions, female elderly and healthy elderly responded with higher score than male elderly and unhealthy elderly, respectively(p<0.05, p<0.01). On the other hand, beneficiaries of the home-delivered meal service were little bit less satisfied with the service(3.54 out of 5). Compared to the beneficiaries of congregate meal service, larger portion of beneficiaries of home-delivered meal service wanted more meats(28.5% vs. 17.1%) and vegetables(23.2% vs. 12.3%) as side dishes. On the other hand, the most preferred type of cooking and/or seasoning was stewing for both cases. Based on these findings, it is suggested that more fresh foods should be used than processed foods in the preparation of meals for the elderly and, more fish-, meat- and vegetable- dishes should be served to come up to the needs of the elderly. Onto this, mainly Korean style meals with some intermittent Western, Japanese or Chinese style meals served at the right temperature would suffice most of the elderly needs.

강원지역의 자원관리를 위한 지리정보시스템 개발

서백수,임길재,정영준,송화선,류창희,민경원,서희정 강원대학교 석재복합신소재제품연구센터 1997 석재연 논문집 Vol.2 No.-

강원도는 오랫동안 금속, 비금속, 석재 및 석탄과 같은 지하자원들을 공급하는 국내 주요생산지로 알려져 왔으나, 장기적인 채광과 비 계획적인 생산으로 인하여 매장량이 고갈되고 있으며, 대외적으로 생산 경쟁력 마저 잃어가고 있다. 이러한 문제점에 대한 해결방안의 일환으로 본 연구에서는 강원도내에 산재되어 있는 지하자원의 분포, 자원 생산시설 및 생산량, 경제성, 자원개발, 환경문제 등 자원관리에 필요한 제반사항을 수행할 수 있는 강원지역 자원 종합관리 GIS 시스템을 개발하였다. 이 시스템의 개발은 방대한 양의 정보 조사 및 저장, 오랜 개발기간, 많은 소요인력 및 개발 비용이 요구되기 때문에 본 연구에서는 조기에 자원관리 GIS 시스템을 개발하여 이와 관련된 생산 및 연구 분야에 조기에 적용할 수 있도록, 일차년도에는 현재 석재복합 신소재제품 연구센터의 집중적 연구대상 지역인 태백지역에 대한 탄광지역을 중심으로 자원 종합관리 GIS 시스템을 개발하였다. The Kangwon province has been well-known to be one of major underground resource producing districts which are mainly supplying metals, non-metals, stones, and coals. However, due to the long-term mining and unplanned production, the natural resource reserves have been rapidly drained and oversea production competition has been losing. In this study, we has developed a GIS system for regional resource management in the Kangwon province, which can operate, maintain, and manage the distribution of underground resources, resource production facilities, production and economic development, and environmental issues. The development of this system requires the collection, analysis, evaluation, and storage for a huge amount of research data, and in addition, the long period of time, the big research man power, and big development cost. Accordingly, to shorten the development period of time and to early apply itself to production, this stage of study has been intensively developed a regional resource GIS system for managing the mines scattered in the Tabak province, which is one of hottest RRC's research areas.

IS 업무의 아웃소싱과 구성원의 직무몰입

서재희 東西大學校 2001 동서논문집 Vol.7 No.-

Outsourcing is the most recent management tool to emerge in response to demands for more efficient ways to address organizational competitiveness. Organizations, recognizing that they cannot be world class in every activity and function involved in producing their products and services, are moving toward business strategies based on "core competencies". Researchers in information systems propose several reasons why firms outsource their IS, including reducing costs, generating cash, focusing on core competencies, and gaining access to technical expense. But many studies were examined into environmental factors of outsourcing success - market circumstance, uncertainty, relationship of outside vendors. This study focused on internal factors of outsourcing success - relationship between activities or functions of outsourcing and motivation, job involvement, job satisfaction of employees. I examine the relationship between outsourced job activities and job involvement of employees in information system department, based on survey from 25 firms.

Scale Factor들을 고려한 투시 변환 매트릭스에 의한 카메라 캘리브레이션 방법

서일홍,김태원,여희주,김재현,이찬호 한양대학교 공학기술연구소 1993 공학기술논문집 Vol.2 No.1

A novel Camera Calibration Method is proposed by employing the perspective transformation matrix with scale factors for the accurate Robot Vision System, where the calibrated scale factors are horizontal scale factor, computer image center coordinate, and camera lens distortion coefficient. By using those factors, the image coordinate with distortion in computer frame grabber is transformed to the undistorted coordinate, in which calibration is performed. To show the validities of the proposed method, several experimental results are illustrated with comparison of the other calibration methods.

복강경을 이용한 대장 부분 절제 시행 1예

박재갑,서경석,정회원,김선회,오용석,송인성,박용현 대한대장항문학회 1993 Annals of Coloproctolgy Vol.9 No.1

GIS를 활용한 효율적인 농촌경관관리구역 설정에 관한 연구

서주환,최현상,변성진,안재홍,양희승 경희대학교 부설 디자인연구원 2002 예술· 디자인학연구 Vol.5 No.1

Land use and social, cultural and environmental safety, which are adapted to natural environment, based on the traditional agricultural society, are on the verge of collapse because our rural community was developing around economy value. Rural landscape has not been certified compared with urban and natural landscape in importance by the standard of functional aspect, economic value and use demand, so cultural, historical, traditional and agricultural landscape native to rural community are not evaluated exactly. The Purpose of the study is a efficient plan and management for a essential rural landscape. Therefore We Make out a landscape diagram for efficient landscape plan and management and Selection of the Rural Landscape Management Area.

Prednisolone 에 의한 장티푸스 抗菌治療의 지연

鄭喜泳,鄭圭源,金在亨,徐廷和,宋貞燮 대한감염학회 1976 감염 Vol.8 No.1

For the purpose of shortening of febrile period of typhoid fever, prednisolone was administered with bacteriocidal antibiotics though corticosteroid had not been used routinely for its possible side effects on typhoid fever. The authors suspected beneficial effects of corticosteroid because the action of bacteriocidal antibiotics was different from the action of bacteriostatic effects of chloramphenicol which was used in the last 30 years. The result was quite different from expectation and the febrile period of the patients was prolonged in all of the cases as shown in figures. Corticosteroid must not be used in typhoid fever so far as it is possible because delay of antibiotic effect than other known side effect. The possible mechanism of the longer intracellular parasitism of Salmonella typhi due to corticosteroid for the prolongation of fever was discussed.

골뱅이(Buccinum Undatum) 알레르기 : 감작률과 다른 음식물 항원과의 연관성 Sensitization rate and its relationship with other food allergens

이재영,윤성호,서유진,최정희,서창희,남동호,김윤근,민경업,박해심 대한천식 및 알레르기학회 2004 천식 및 알레르기 Vol.24 No.1

Background : The common whelk (Buccinum undatum) is one of the largest and most common snails in the North Atlantic. In Korea and Japan, common whelk is a popular eatable shellfish. Although shellfish has been known as the one of the most common causes of food allergy, there has been no published report on allergenecity and clinical significance of this sea snail. In this study, we determined the sensitization rate to common whelk and its relationship with other food allergens in allergy patients. Method : We carried out the skin prick test (SPT) with commonly consumed food stuffs in Korea including common whelk in 1700 patients over 1 year. The specific IgE to common whelk were detected by enzyme-linked immunosorbent assay (ELISA). ELISA inhibition test using sensitized sera was conducted. Results : SPT to common whelk was positive (≥2+) in 83 (4.9%) patients studied. Twenty-four (38.7%) of 62 SPT-positive patients had high serum specific IgE to common whelk. ELISA inhibition test showed significant inhibitions by abalone as well as by common whelk and, minimal inhibition were noted by shrimp. Significant correlation was also noted in specific IgE levels between common whelk and abalone (r=0.58, F<.05). Conclusion : IgE-sensitization rate to common whelk was 4.9% in allergy patients. Further stuides are needed to evaluate the clinical significance of sensitized patients to common whelk, and to confirm a cross reactivity with abalone. (J Asthma Allergy Immunol 24 : 77-84, 2004)