• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 춘계학술대회 논문집
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• pp.856-861
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• 2005

This paper presents an introduction and economical efficiency analysis of spring tension balancer in trolly wire system. In the overhead trolly wire systems, one of the most things is tension balancer. Because it can be automatically adjusted tension for expansion and contraction of overhead catenary system. In this paper, we introduced spring tension balancer and analyzed economical efficiency of it.

• 한국정보보호학회:학술대회논문집
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• 한국정보보호학회 2003년도 하계학술대회논문집
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• pp.99-103
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• 2003

서울여대 인터넷 보안 그룹인 스윙에 대해 소개하고, 현재 진행중인 연구활동에 대한 간략한 소개와 그중 안티바이러스 연구에 대해 좀 더 구체적으로 설명하도록 하겠다. 안티바이러스 연구의 내용 중 바이러스 감염 경로, 진단 방법, 기존 안티바이러스 엔진 동작 연구 수행 활동과 앞으로의 연구 방향에 대해서 다루도록 하겠다.

• 기술사
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• 제41권6호
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• pp.45-48
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• 2008

Exam administration agreement was signed by the Korean Professional Engineers Association (KPEA) and the National Council of Examiners for Engineering and Surveying (NCEES) at the 2nd National Convention of Professional Engineers on 6 September 2008. Korean engineers can take U.S. Professional Engineer examination under proctor of KPEA in Korea from next April. It helps to broaden for Korean young engineers to have a chance to work and to be recognized as a professional engineer in the U.S. This is a brief introduction of U.S. Professional Engineer system and examination.

• 한국디지털정책학회:학술대회논문집
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• 한국디지털정책학회 2007년도 춘계학술대회
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• pp.23-32
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• 2007

Most recently, the development and publication of the ordinance and the manual of policy qualify management is spreading the recognition of quality Control in the public sector. The purpose of this study is to introduce of the system quality Control for local government's policy. So we suggested lessons drew from case study(Daegu metropolitan city, Gumi city) on current introduction. To introduce the system quality Control for local government, we have to gain the sympathy of introduction, second prepare of inducement, last manage PQM flexibility.

• Archives of Pharmacal Research
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• 제2권1호
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• pp.71-78
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• 1979

Since the introduction of aspirin as a therapeutic agent in 1899, there have been numerous attempts at the improvement of its therapeutic value through molecular modification. These endeavors have centered mainly around the following two approaches : (a) improvement of the potency by introduction of a suitable group or groups on the benzene ring; and (b) modification of the carboxylic acid group, which is thought to be an immediate cause of the irritant effect.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2003년도 춘계학술대회
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• pp.195-201
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• 2003

This study investigated the management environment of medium and small business by examining the role of medium and small business in national economics, the change in management condition, and the problems in Qualify and technique. Also we analyzed problems in the past quality control activity of our medium and small business, and examined the driving direction and introduction method of QM. And to understand the effect of manager's concern in quality management to observe the quality system before and after introduction of QM. A target for this investigation is the medium and small business which has introduced QM through ISO 9000.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2005년도 Proceedings of The 6th korea-china joint workshop on nuclear waste management
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• pp.107-116
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• 2005

Precipitated silicas modified by aluminium were characterised using inverse liquid chromatography in anhydrous heptane with squalene as probes. Their monolayer capacities of adsorption, Langmuir's and Henry's constants were determined from the desorption isotherms according to frontal analysis. A narrow band consisting of isotherms was observed. The introduction of aluminium has little influence on the monolayer capacity, Langmuir's constants and the Henry constant. Experimental data show that neither the amounts of aluminium on the silica nor the methods of the introduction of aluminium into the silica influence the interactions between the squalene and the silicas.

• Journal of Preventive Medicine and Public Health
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• 제51권6호
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• pp.326-328
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• 2018

As over 1000 new cases of HIV/AIDS occur in Korea annually, preventive health programs against HIV/AIDS are urgently needed. Since phylodynamic studies have been suggested as a way to understand how infectious diseases are transmitted and evolve, phylodynamic inferences can be a useful tool for HIV/AIDS research. In particular, phylodynamic models are helpful for dating the origins of an epidemic and estimating its basic reproduction number. Thus, the introduction of phylodynamics would be a highly valuable step towards controlling the HIV/AIDS epidemic in Korea.

• 대한방사선협회지
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• 제25권1호
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• pp.92-93
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• 1999

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 2005년도 전공의 연수교육
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• pp.121-140
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• 2005