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유기용제 폭로 근로자들에 대한 신경행동검사에 관한 연구
강성규,정호근,홍정표,김기웅,조영숙,Kang, Seong-Kyu,Chung, Ho-Keun,Hong, Jeong-Pyo,Kim, Ki-Woong,Cho, Young-Sook 대한예방의학회 1993 Journal of Preventive Medicine and Public Health Vol.26 No.2
In order to evaluate the confounding factors of neurobehavioral tests and the neurobehavioral effects in the workers exposed to organic solvents, NCTB was carried out on 100 workers. 46 workers had never been exposed to neurotoxic substances, and the others were being exposed to the solvents, mainly toluene. Simple reaction time, digit symbol, Santa Ana dexterity test and persuit aiming were different with age in non exposure group. Simple reaction time was carried out well in males, and digit symbol and persuit aiming were in females. There was no difference at educational level when the subject was educated over 12 years. Santa Ana dexterity and Benton visual test differed according to exposure level to toluene, however simple reaction time didn't. The acute neurotoxic effect was not excluded in this study. But, NCTB could be used to evaluate and prevent neurobehavioral changes in workers exposed to neurotoxic solvents in Korea.
강성규(Sung-kyu Kang),나사균(Sa-Kyun Rha),서정혜(Jung-Hye Seo),이연승(Youn-Seoung Lee) 한국정보기술학회 2009 Proceedings of KIIT Conference Vol.2009 No.-
전기도금을 이용하여 구리 박막을 성장 시킬 때, 가속제가 미치는 영향에 대하여 조사 하였다. 구리 seed layer 위에 전착된 구리박막에 대해, 4-탐침법으로 표면저항을 측정하였고, 전착률 및 두께는 FE-SEM을 이용하여 측정하였다. 표면 거칠기는 AFM을 이용하여 측정하였다. 형성된 구리 박막의 불순물 유무는 XPS를 이용하여 측정 하였다. 전해용액(CuSO₄ㆍ5H₂O 40 g/ℓ, H₂SO₄10 g/ℓ , HCI 50 ppm), 유기 첨가제(억제제 2.5㎖/ℓ, 평탄제 2 ㎖/ℓ고정 하였을 때, 가속제의 첨가량이 증가할수록 전착률이 증가하였고 표면 거칠기는 감소하였다. 가속제의 첨가량이 6 ㎖/ℓ 일 때, 전착막의 비저항 값이 가장 낮았다. We investigated the effects of an accelerator on the growth of Cu films by electrochemical plating. Cu thin film were deposited by electroplating process over Cu seed layer. The sheet resistance was measured with a four-point probe. The deposition rate and thickness was measured by a FE-SEM. the surface roughness was measured by AFM. The impurity presence of the Cu thin film was measured by XPS. The plating electrolyte(CuSO₄ㆍ5H₂O 40 g/ℓ, H₂SO 10 g/ℓ , HCI 50 ppm) and organic additives (suppressor; 2.5 ㎖/ℓ , leveler; 2 ㎖/ℓ) were fixed. According to increase of accelerator, the deposition rate increased and the surface roughness decreased. The resistivity was the lowest when accelerator of 6 ㎖/ℓ is added
강성규(Kang, Seongkyu),최시중(Choi, Sijung),이동률(Lee, Dongryul) 한국방재학회 2017 한국방재학회논문집 Vol.17 No.1
본 연구의 목적은 도시계획이나 하천사업에 있어서 홍수방어 대안의 우선순위를 결정하는 기법을 선정하는 것이다. 도시계획이나 하천사업에는 다양한 대안과 평가기준을 통해 방향이 결정되므로 이를 반영할 수 있는 의사결정기법이 필요하다. 따라서 의사결정의 방법론과 특징을 조사, 분석하였으며 다기준 의사결정방법 중 PROMETHEE, ELECTRE 방법 및 엔트로피 척도를 이용하는 방법을 적용하였다. 동일한 조건에서 순서우위 방법인 PROMETHEE와 ELECTRE는 매우 유사한 결과를 제시하였으나, 엔트로피 척도에 의한 방법은 평가기준과 대안간의 비례, 반비례 관계를 반영하지 못하는 점으로 인해 직접 적용을 위한 개선이 필요한 것으로 나타났다. The purpose of this study is to select techniques for prioritizing flood defense alternatives in urban planning and river projects. Urban planning and river projects should be determined through various alternatives and evaluation criteria, so appropriate decision making methodology will be needed. Therefore, decision making methodologies and its characteristics were investigated. With a result, PROMETHEE, ELECTRE and Entropy measure among Multi-Criteria Decision Making method were applied. The outranking method(PROMETHEE and ELECTRE) presented similar result however Entropy measure need to improvement because of conflict priority with outranking method which is originated from ignorance of proportion relationship.
직업성천식 감시체계에 등록된 우리나라의 직업성천식 실태
강성규(Seong Kyu Kang),지영구(Young Koo Jee),남동호(Dong Ho Nahm),민경업(Kyung Up Min),박중원(Jung Won Park),박해심(Hae Sim Park),손춘희(Seong Kyu Kang),조상헌(Sang Heon Cho),최인선(In Seon Choi),최승원(Seung Won Choi),홍천수(Chein S 대한천식알레르기학회 2000 천식 및 알레르기 Vol.20 No.6
N/A Background: Since asthma caused by toluene diisocyanate (TDI) was reported at a polyurethane paint factory, occupational asthma there has been increasing concern of in both allergic and occupational health. However, the statistics of occupational asthma did not reflected its seriousness because of many barriers related to legal reporting. Since fild a voluntary report from a clinician sent directly to a surveillance center would allow more cases to be filed without any disadvantage to workers and employers, we developed a surveillance system to facilitate the reporting of occupational asthma. Methods : Allergists and pulmonary physicians were asked to report to the Occupational Asthma Surveillance Center(OASC) using a mail, fax or e-mail if work-related asthma was diagnosed. A claimed case for occupational asthma to the Occupational Health Research Institute was also included. The OASC contacted the workers by phone and investigated the workplace if necessary. The reported cases from October, 1998 to November, 1999 were analysed. Results: Thirty-three cases were reported with 29 males and four females. The mean age was 44 and the mean latency period was 5.4 years. Twenty-one cases were caused by a known allergen inducer with objective evidence. The causative agents included TDI in 45.5 %(15), followed by reactive dye in 24.2 %(8). welding fume(2), formaldehyde(1), paint (1), toluene(1). styrene(1), exhaustive gas(1), and wood dust(1). Among these cases, there were seven dyers, four painters, three machine operators and furniture finishers, two assemblers and tanneries. Eighteen cases had claimed Workers Compensation Insurance and all were accepted. The reasons for not claiming Insurance included ignorance(28.5%), feat of job dismissal (23.8%), other reasons (9.5 %), agreement with the employer(14.3%) and employer hirnself(9.5 %) Conclusion : The OASC by allergists was an effective system to find unreported cases and to provide a prevention strategy of occupational asthma. Occupational asthma was mostly caused by TDI and reactive dye. Painters and dyers were the most common occupations causing occupational asthma. Only half of occupational asthma patients claimed compensation because of workers ignorance and fear of being fired. (J Asthma Allergy Clin Immunol 20: 906-15, 2000)