VDT작업별 정신사회적 스트레스와 근골격계 장애에 관한 연구

백남종,강종두,주영수,배인근,권호장,박종만,조수헌,김돈규,김재용,최홍렬 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.4

It has been hypothesized that jobs that have both high psychological demands and low decision latitude("job strain") can lead to musculoskeletal disorder. The objective of this study was to test whether job strain was correlated with the presence of work-related musculoskeletal disorder, especially myofascial pain syndrome(MPS). Information on demographic factors, confounders such as household load and taking care of children or not, and scores for decision latitude, job demand, and social support was obtained by self-administered questionnaire, which had been developed in Korean language, by adopting NIOSH instrument and Extended Karasek Model(16 items). All subjects were also examined by rehabilitation medicine specialists for musculoskeletal disorders. Subjects(n=370) could be categorized into 4 groups, these were, housewives(n=89), shipyard CAD workers(n=89), general female workers(n=79; nurses, insurance counselors, public officials, clerks, etc), and telephone directory assistance operators(n=113). Results from univariate analyses indicated that all demographic factors, all confounders, scores for decision latitude and social support were not associated with the risk of musculoskeletal disorder. However, score for job demand was higher in musculoskeletal disorder cases than others. In subgroup analysis, this association was convinced again, in telephone directory assistance operators. Job strain model showed that the group of telephone directory assistance operators was high-stain group, and OR of musculo skeletal disorder was 2.446(95% C. I. : 1.174, 5.096), when comparing this with the low strain group. In conclusion, job strain is a risk factor for work-related musculoskeletal disorder.

우울과 관련된 장애를 가진 환자들의 PAI 프로파일

두정훈,강종구,노승호,오상우 圓光大學校 醫科學硏究所 2004 圓光醫科學 Vol.19 No.2

Prodution Language로 表現된 Parser Generator의 設計에 관한 硏究

유관종,박두순 충남대학교 자연과학연구소 1983 忠南科學硏究誌 Vol.10 No.1

In general, a parser which is written by Floyd-Evans production language can be mechanically constructed from a weak procedence grammar. But all grammars are not weak precedence grammars. So, in this paper an algorithm for the mechanical generation of productions for a context-free grammar is presented.

제주도 연안 갈치 채낚기 어구의 생력화 : 1. 연속식 채낚기어구의 모형 실험

서두옥,정용진,김석종,이창헌,김고환,박용석 제주대학교 해양연구소 2000 해양자원연구소연구보고 Vol.24 No.-

The authors carried out a model experiment of continuous hairtail hand line on the rooftop in order to obtain the fundamental data on elimination of labor with hairtail hand line in the coast of Jeju The results are as follow : 1. The continuous main line was rotated smoothly by driving roller. 2. The branch lines and hooks on a main line which was rotated by rotary machine were entangled slightly. 3. The branch lines attached to rubbered model of hairtails to hooks were rotated continuously by the rotary machine.

과잉양수에 의한 지하수고갈 영향에 대한 연구

김종태,배두원,김만일,정교철 7개 국립대학교 환경연구논문집 공동발행 위원회 2005 공업기술연구 Vol.5 No.-

To study the relations of underground/surface-water exhaustion and excessive pumping, we have analyzed river, geological characteristics, recharge rate of rainfall and underground-water level. The ground water recharge rate from the SCS-CN analysis is 8.4%, and the recharge is computed in 6.4111 x 10^(5)㎥/y. This results mean that a big drawdown in observation holes may be occurred by excessive pumping. From in-situ hydraulic conductivity test, hydraulic conductivity in basement of the study area is calculated in 7.996 x 10^(-6)-2.067 x 10^(-6)m/sec. The underground/surface-water in the study area with small underground-water recharge rate will be exhausted by long time pumping.

素問·痺論에 대한 硏究

張斗浩,張鍾烈,琴坰樹,朴炅 圓光大學校 韓醫學硏究所 1996 원광한의학 Vol.6 No.1

한국산 변형균의 신한국명과 도설

최두문,김종균 공주대학교 과학교육연구소 2002 과학교육연구 Vol.33 No.-

본 연구에서 제시한 변형균의 신분류체계는 Nannenga-Bremekamp, 山本辛憲 등에 따랐으며 한국에서 출현한 11과, 34속, 153종에 대하여 계통학적으로 정리하였다. 한국산 변형균은 낙엽이나 부목에 착생하는 것이 대부분이며, 중요한 수피착생성, 호설성, 아열대성 변형균은 거의 없는 것으로 나타났다. 이들 종의 특징, 학명, 생태 등에 대한 조사·검토를 실시하여 분류 체계를 정리하여 신학국명과 계통설명문 및 종 해부도를 작성하였다. 본 연구의 결과는 변형균에 대한 기초적인 종 동정 및 감정, 환경의 지표 식물 이용에 도움이 되리라 사료된다. Korean myxomycetes taxonomy is systematized according to Nannenga-Bremekamp and Yamanto, and then 11 families, 34 genera, 153 species were identified and classified. Most myxomycetes of Korea inhabited litters and rotten trees. Characteristics, scientific name, ecological properties of korean myxomycetes were examined and studied. On the basis of new korean myxomycetes taxonomy, they were named in Korean, and described with systematic characteristics and by an explanatory diagram.

대체에너지원으로서 국내 산림바이오매스 자원의 잠재력과 이용가능성

차두송,오재헌,우종춘 江原大學校 森林科學硏究所 2004 Journal of Forest Science Vol.20 No.-

본 연구에서는 대체에너지로서의 바이오매스에너지원의 정의와 특성 등을 살펴보고, 국내에서의 바이오매스 에너지원의 잠재력과 이용가능성에 대해서 검토하였다. 특히 임지잔재, 간벌재 등의 목질바이오매스는 자원량이 풍부하고, 임업·임산업의 활성화와 인공림의 간벌작업을 촉진하여 산림의 공익적 기능을 증대시킬 수 있는 에너지 자원으로서, 앞으로 지속적인 산림관리를 위한 새로운 임업의 과제가 될 것으로 판단된다. This study aims to study the definition and characteristics of forest biomass as an alternative energy and to estimate the energy potential and feasibility of forest biomass utilization in domestic. Especially, significant attention is given to woody biomass such as forest residue, thinning log, etc. due to their renewable, sustainable and abundant properties. The results were summarized as follows. The utilization of these forest biomass could play an important role to activate the forest industry and increase the public benefit functions of forest. but more attention on their utilization is required and how they can be utilize more efficiently is the new task assigned to our forestry for sustainable forest management.

횡류팬 유로최적화를 위한 수치실험

전용두,이종수 공주대학교 생산기술연구소 2002 論文集 Vol.10 No.-

Cross flow fan system is widely used for various applications, especially for the air-moving device of heaters, air-conditioners, and air-curtains. Although there are efforts for the optimization of cross-flow fan flow path with different methods of approach, it is still being investigated by many researchers through experimentally and/or theoretically, because the flow pattern of the cross flow fan is not stereotyped. This paper presents some results from numerical experiments for optimization of the flow path through a cross-flow fan to be applied to indoor wall-mounted room heater. Two dimensional analysis has been applied to a specific fan system including inlet and diffuser outlet. Flow characteristics are presented and discussed for two different flow path at three different operating conditions represented by rotational speed(800, 1,000, 1,200 rpm) of the fan. According to the simulated results for the specific fan system under consideration, it could be found that the flow pattern resembles each other at different rotational speed (to say from 800 rpm to 1,200 rpm) for a fixed flow path, while the secondary flows mostly absorbs the speed effects. By changing the flow path significant increase in volume flow rate is estimated upto 2.65 at the same rotational speed. According to the present experience, fan flow path design can be performed more efficiently by incorporating this type of numerical experiments combined with the model tests.

제주도 연안 갈치 채낚기 어구의 생력화 : 1.연속식 채낚기어구의 모형 실험

서두옥,정용진,김석종,이창헌,김고환,박용석 제주대학교 해양연구소 2000 해양과환경연구소 연구논문집 Vol.24 No.-

The authors carried out a model experiment of continuoius hairtail hand line on the rooftop in order to obtain the fundamental data on elimination of labor with haritail hand line in the coast of Jeju. The results are as follow ; 1.The continuous main line was rotated smoothly by driving roller. 2.The branch lines and hooks on a main line which was rotated by rotary machine were entangled slightly. 3. The branch lines attached to rubbered model of hairtails to hooks were rotated continuously by the rotary machine.