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대전·충남지역 고등학교 1학년생의 풍진 항체보유율과 백신접종 후의 항체형성률
오성균,김수영,여경오,김윤태,최명한,이석구,조영채,이동배,이태용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2
For the purpose of investigating the positive rate of rubella antibody and sero-conversion rate after rubella vaccination, 863 high school students of the two regions were studied from April 21st, 1996 to September 20th, 1996. The main results were as follows; 1. Positive rate of IgG in male was higher than in female, and the rate of IgM was also higher in male than in female. 2. Positive rate of IgG by blood type was similar, but positive rate of IgM was higher in AB type than the others. 3. Positive rate of IgG by vaccination was similar to all groups, but positive rate of IgM was higher in which was not vaccinated group. 4. Positive rate of IgG and IgM, having vaccination card, was less than which was not having vaccination card. 5. Those who were vaccinated acquired IgG(+) regardless of an existence of IgG antibody, and 28.3% of IgG(-), IgM(+) male who was not vaccinated became IgM(+), IgG(+) after 3months later. As a result positive rate of male was higher than female. The author conclude that vaccination is necessary to prevent from rubella for them.
이상일,서석훈,홍경민,신용섭,장상희,신부영 영남대학교 공업기술연구소 2001 工業技術硏究所論文集 Vol.29 No.1
Bio-and-photodegradable polymer composites were prepared by blending biodegradable aliphatic polyester and photodegradable master batch(M/B). Photodegradability, biodegradability, thermal properties and mechanical properties were investigated. The biodegradability of EnPol(G4600) composites decreased wish increasing the amount of M/B, while that of EnPol(G8000) composites increased. Tensile strength and elongation decreased with increasing the time of outdoor exposure and the amount of M/B but modulus comparatively maintained. The mechenical properties decreased as the content of M/B increased, while the melting temperature unchanged.
플라이애쉬를 혼입한 콘크리트포장의 배합특성에 관한 실험적 연구
이주형,최성용,윤경구,정영화 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-
As the weight of trucks increases, the need for concrete pavement also increases. Therefore, the addition of fly-ash may improve the properties of pavement concrete as well as recycle fly-ash. A full factorial experiment was performed using the primary variables, such as water-cement ratio, fly-ash substitution ratio, and maximum size of coarse aggregate, as a preliminary study for optimum mixture design for pavement concrete. The results of preliminary study indicates that the addition of fly-ash is the most important factor determining concrete strength, followed by the maximum size of coarse aggregate and water-cement ratio. It, also, shows the relative importance of fly-ash substitution ratio, compared to the water-cement ratio, and the interaction effects between the primary variables. Optimum mixture designs for pavement concrete incorporating fly-ash, that satisfied the target responses, were proposed in terms of fly-ash substitution ratio, water cement ratio and maximum size of coarse aggregate.
임대아파트의 수선 및 장기수선계획업무 프로세스 모델구축에 관한 기초연구
이춘경,정영한,김지현,이상준,박태근 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
The final goal of this study is to propose the process models of repair and long-term maintenance plan for consistency and effectiveness in rental apartments. This models are expected to help managers improve their works and provide a operation guide in repair and long-term maintenance plan. This study developed an AS-IS process model for repair and long-term maintenance plan in rental apartments. To sum up, it would be possible for managers to use the work processes of repair and long-term maintenance plan for their systematic and effective works. Also, it should be possible to make the integrated maintenance management system for managing current situation and measuring the diagnosis.
이상윤,라병욱,박동수,황인헌,이덕동,신영남,박성배,이동욱,박용석,박형근,손상호,권태근,채경락,정경득 慶北大學校 自然科學大學 1986 自然科學論文集 Vol.4 No.-
An Ac-type Plasma Display Panel (PDP) operating with Ne-Ar(0.1%) Penning mixture gas is fabicated. The characterics of the panel with electrodes covered with thin and thick dielectric layers are studied. The brightness of the Neon-orange light emitted by the panel measured as function of applied voltage and frequency. As an application, a graphic display system equipped with PDP showing still and moving pictures is made.
이경애,박영숙 순천향대학교 1993 논문집 Vol.16 No.3
Management of university cafeterias which were in rental operation was investigated. The survey was done with two student's cafeterias of S university in Chungnam province. The organization for rental management of student's cafeterias was very complicated. There were no dietitian and qualified cook among employees. Menu plannings were practiced by unqualified cook. While cafeteria (Ⅰ) served special meals and ordinary meals, Cafeteria(Ⅱ) served the same ordinary meals as cafeteria(Ⅰ). 75% of student's utilized cafeteria(Ⅰ). Nutritional analysis of special meals and ordimary meals showed that the level of energy and nutrients of the meals was below the recommended level.
이종욱,최원영,서경인 고려대학교 한국곤충연구소 1997 昆蟲硏究誌 Vol.23 No.1
동구북구산 Mesochorus속을 재고찰한 결과 4미기록종을 포함하여 총 31종을 확인하였다. 따라서 동구북구산 Mesochorus속은 본 연구에서 확인하지 못한 10종을 포함하여 총 41종이 분포하는 것으로 보고된다. 원기재와의 차이점을 추가하여 기록하였고, 채집지, 분포, 숙주목록 등을 정리하였으며, 확인된 31종에 대한 검색표를 작성하였다. 이 중 Lee와 Suh의 M. sp.1은 본 연구에서 신종임이 확인되어 Mesochorus seorakensis로 새로이 명명하였다. 종목록은 아래와 같다. Aa a result of systematic study of the Mesochorinae, a total of 31 species was confirmed in the Eastern palearctic Mesochorus. Among them, four species, M. confus, M. fuscicornis, M. rubranotatus and M. uniformis are new to Eastern palearctic regional fauna. Mesochorus sp. 1 of Lee and Suh (1991) is confirmed as new species and it named to be M. seorakensis. Thus, the Eastern palearctic Masochorus is composed of 41 species including 10 unconfirmed species in this study. Additional descriptions, collection sites, distributions, host lists, keys are provided for the species.
임대아파트의 수선비용 관리시스템을 위한 데이터베이스 구축
이춘경,정영한,박태근,김광우,김창덕,김옥규,황영삼,박홍석 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1
It shows that a variety of side effects result from the housing-supply policy focused in quantity. In a rental apartment for the low-income group, a shortage of maintenance cost in facilities become aggravated. The rapid progress of obsolete leads the lessor to the economic loss as well as a baneful influence to national economy. Also, the maintenance skill brings inadequacy by reason of technique development focused on new construction. As a result, the cost which needs for maintenance should get accomplished to application toward economy analysis and attempt considered management and financial affairs. Simultaneously, it should keep and administer a lot of data of maintenance affairs during life cycle in apartment and set up the way for aiding the situation of maintenance process.
Compocasting 법으로 제조된 AS91D/SiC_p composite 의 특성 평가
이경태,김세광,김영직 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2
The properties of SiC particle reinforced metal matrix composites(MMCs) of magnesuim alloy were investigated. MMCs was produced by compocasting method and specimens were fabricated by pressing of slurry. These specimens were evaluated in tensile strength, hardness, wear resistance, oxidation properties. The hardness and tensile strength were increased with SiC_p contents. Up to 5 % addition of SiC_p the wear resistancewas improved. It was deteriorated however above 5 % addition because of adhesive wear. Under isothermal oxidation conditions, oxidation resistance was improved with SiC_p.
이경민,송주희,장재혁,심수정,강양화,안재경,이숭호,박미영,정문호 대한보건협회 2002 대한보건연구 Vol.28 No.4
Object The usage of agricultural chemical is on the increasing. Use of pesticides has increased agricultural production. However, negative externalities from such use have increased too. Pesticide poisoning is a major public problem. The purpose if this study is to find out the relationship between keeping the safety rules or protective equipments or attending safety education or dose of pesticides use , and poisoning experience. Methods For Gu, H.M. and Pack, S.G. study , we obtained questionnaire data concerning pesticides poisoming. A person interviews on 203 were conducted in two villages in Sinmeari and woulbonri Chunchun , Kangwon province, July 2002. Result 1. 144 people(70.9%) have sprayed pesticides and the rata of experiences of pesticide poisoning was 26% among 144. Spraying time of pesticides was 1-2 hours in 63.9% of farmers. Rate of using the protective equipment was 25.7% (protective clothes), 49.3% (Mask), 48.6 (Gloves), 7.0 (Protective glasses), 64.6% (boots) respectively. 2. Chi-square and multiple logistic regression analysis showed that Duration of spraying per day (<2hr) and using of mask(protective equipment)are significantly association with poisoning experience.(x^2=5.2684 p=0.0217, CI=0.140-0.5853 OR=0.346 p=0.0211 respectively). But no association between poisoning experience and keeping safety rule, attending of safety education. 3. Spraying pesticides. Duration of spraying pesticides, reading manuals and no spraying at fatigue (keeping safety rule) are significantly association with symptom experience(x^2=14.0621 p=0.0002, x^2=7.0639 p=0.0079, CI01.395-10.950 OR=3.908 p=0.0095, CI=0.101-0.726 OR=0.271 0.0094 respectively). But no association between symptom experience and protective equipments, attending of safety education.