• 한국학교보건학회지
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• 제23권1호
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• pp.63-70
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• 2010

Purpose: To identify the need to reform in the crisis response of Health Teacher, School Nurse, in elementary school during epidemic outbreak of influenza H1N1. Methods: 139 elementary health teachers, school nurse, in seoul elementary school responded in the questionnaire, and we analysed by using frequency and percent, t-test, and paired t-test. Results: The Job status became 121% more 'during influenza H1N1 (flu) outbreak' than Job status of 'before outbreak'. The proportion of the flu-related duty among their daily workload was up to 77.5%. The administration-related workload of the flu-related duty was 30.8%. and students' health assessment including temperature measurement 18.7%. Furthermore, an impediment of usual daily work due to an increaed flu-related workload was 95.7%, and no alternative plan such as disposition of assistant labor force was 86.1%. Especially, an impediment of health education was 61.0%, so the major concern was the loss of health education. We compared average scores (a five-point Likert scale) of health teachers' work motivation, exhaustion, work relationship and Job management of 'during' with 'before' flu-outbreak. The difference range of 'during' minus 'before' work motivation score was from -0.4 points to -0.9; work exhaustion range from 1.8 to 1.9; the difficulty of relationship between students, school personnel, parents of students, and health teachers from 1.4 points to 1.3 points; and the consideration of changing Job, taking time off from the Job and retirement from 1.4 to 1.6 points. Conclusion: The health teachers had a heavy workload due to flu-outbreak. They also experienced the impediment of usual work implementation. However, there was a shortage of alternative plan such as disposition of an assistant labor force. Under their Job status like this, the health teachers' motivation score was decreased and work exhaustion was increased. Furthermore, they had a lot of relation difficulty with students and school personnel. Therefore, we suggested that in contrast to the usual Job status, there is a need to have a prepared response during school crisis like flu-outbreak such as improved response system in seoul metropolitan education office, simplification or dispersion of administrative work, and temporary call-center for simple inquiries or advices.

• 한국치위생학회지
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• 제4권2호
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• pp.225-236
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• 2004

It has been suggested in research results thai dental hygienists have high risk of carpal tunnel syndrome, mainly caused by the repeated motion of extensor and flexor or the use of vibration tools, compared to other occupations. To find out the situation of the carpal tunnel syndrome of dental hygienists, who are exposed to work-related musculoskeletal disorders, this study used 132 questionnaires given on May 22, 2004, the period of continuing education of the first half year in the Gwangju Jeonnam area, and obtained the following results. 1. Subjects worked at a dental ciinic(32.6%), a hospital(31.8%), and a public health center(35.6%). Age by work was under 24 in a clinic(17.4%) and a hospital(15.9%), and over 30 in a public health center(35.6%). 2. In practice conducted over one time a day, a scaling accounted for 90.7% in a doctor's office; 595% in a hospital; and 3.0% in a public health center, suggesting significant difference(p<0.01). Pit and fissure sealant accounted for 53.5% in a clinic; 53.2% in a hospital; and 95% in a public health center, also suggesting significant difference(p0.01). 3. Symptoms of carpal tunnel syndrome appeared in a wrist(12.1%), a right hand(14.4%), and a left hand(5.3%). 4. In case of temporary crown practice, symptoms appeared in a wrist(22.0%), a right hand(14.0%), and a left hand(4.0%), suggesting significant difference(p<0.01). The above results showed that 12.1% of dental hygienists was exposed to carpal tunnel syndrome. Thus, it is considered very important that dental hygienists should be given education of the danger of continuous work in certain motions and prevention education of improving repeated position, and make efforts to reinforce self-control ability.

• 한국문헌정보학회지
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• 제47권4호
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• pp.211-233
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• 2013

이 연구의 목적은 전문도서관 직원의 전반적인 직무만족 수준을 진단하고, 소속기관과 개인환경에 따라 나타나는 직무만족의 차이를 분석하는데 있다. 분석 결과, 민간기관이 '보수', '승진', '전반적인 만족도' 요인에서 공공기관보다 직무만족도가 높게 나타났고, 도서관이 독립적 부서로 존재하는 기관이 그렇지 않은 기관에 비해 '직무자체', '보수', '동료관계' 요인에서 만족도가 높았다. 고용형태별로는 정규직이 '보수'와 '승진'의 직무만족도가 높게 나타난 반면 비정규직은 '상사 및 감독' 요인의 만족도가 상대적으로 높게 나타났다. 직급별로는 관리자급이 '보수'와 '복무제도', '승진' 요인과 '전반적 만족도'에서 비관리자급보다 만족도가 높았다. 마지막으로 전공별로는 문헌정보학 전공자가 '직무자체', '복무제도', '승진', '시설환경'에서 비전공자에 비해 직무만족도가 다소 높았다. 이 연구를 통해 전문도서관 직원의 욕구와 감정을 명확하게 이해하고 직무만족의 장애요인을 제거함으로써, 도서관 업무효율성을 제고하기 위한 참고자료로 활용될 수 있기를 기대한다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2017년도 춘계 종합학술대회 논문집
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• pp.103-104
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• 2017

목표: 제조업은 산업 재해가 가장 많이 발생하며, 산업 재해를 예방하기 위해 산업계 근로자가 알고 있는 안전 환경을 연구하는 것이 중요합니다. 방법: 2015년 PSWCI 패널 보고서에 응답한 근로자 중 연구 대상은 남성 1,123명이었다. 연구 대상은 영향을 받는 주관적인 건강을 겪은 후 1년 동안의 고용 상태의 변화에 따라 피험자를 분류하여 분석을 했다. 통계 분석은 SAS 버전 9.4 (SAS Institute Inc., Cary, NC, USA)를 사용하여 수행되었습니다. 결과: 분석 결과에 따르면 제조 산업은 근로자 조건에 따라 경제적 활동과 건강상태에 차이가 있었습니다. 제조업 환경의 역동적인 변화의 측면은 성별과 일시적인 상태와 실업 상태 사이에서 남성이 더 높은 경향을 보였다. 결론: 이 연구의 결과는 제조 업계 종업원들이 느끼는 작업 환경의 안전 수준을 향상시키기 위한 것이다.

• Steel and Composite Structures
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• 제34권4호
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• pp.525-545
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• 2020

This paper presents a new structural system to use as retaining walls. In civil works, there is a general trend to use traditional reinforced concrete (RC) retaining walls to resist soil pressure. Despite their good resistance, RC retaining walls have some disadvantages such as need for huge temporary formworks, high dense reinforcing, low construction speed, etc. In the present work, a composite wall with only one steel plate (steel-concrete) is proposed to address the disadvantages of the RC walls. In the proposed system, steel plate is utilized not only as tensile reinforcement but also as a permanent formwork for the concrete. In order to evaluate the efficiency of the proposed SC composite system, an experimental program that includes nine SC composite wall specimens is developed. In this experimental study, the effects of different parameters such as distance between shear connectors, length of shear connectors, concrete ultimate strength, use of compressive steel plate and compressive steel reinforcement are investigated. In addition, a 3D finite element (FE) model for SC composite walls is proposed using the finite element program ABAQUS and load-displacement curves from FE analyses were compared against results obtained from physical testing. In all cases, the proposed FE model is reasonably accurate to predict the behavior of SC composite walls under out-of-plane loads. Results from experimental work and numerical study show that the SC composite wall system has high strength and ductile behavior under flexural loads. Furthermore, the design equations based on ACI code for calculating out-ofplate flexural and shear strength of SC composite walls are presented and compared to experimental database.

• 한국건설관리학회논문집
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• 제9권5호
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• pp.186-193
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• 2008

흙막이를 지지하는 버팀대를 가설재가 아닌 주(主)구조체로 이용하는 SPS(Strut as a Permanent System) 공법이 개발되어 최근 국내 공사현장에서 활발하게 활용되고 있다. 이 공법은 건축공사 현장에서 원가절감, 공기단축, 구조적 안정성 향상, 건설환경 개선 등 다양한 이점을 주는 반면 지하층고의 증가와 철골부위 내화피복을 추가로 수행하여야 하는 문제점이 있다. 지하층고의 증가는 흙막이 깊이 및 지하 최저부위 굴착량 증가의 문제점을 유발하고, 내화피복 공사는 공사환경을 열악하게 함은 물론 공사비 증대의 요인이 된다. 따라서 본 연구는 SPS 공법의 문제점을 개선한 모듈화된 철골철근 복합 구조시스템(modularized hybrid structure system)을 제안하는 것을 목적으로 한다. 제안된 공법은 구성원리와 함께 실험을 통하여 구조적 성능을 검증되고 다양한 공사조건을 만족시키는 시공성능이 분석된다.

• Journal of Radiation Protection and Research
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• 제28권2호
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• pp.127-135
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• 2003

The primary contributors to the total occupational radiation exposure in operating nuclear power plants are operation and maintenance activities doting refueling outages. The Advanced Power Reactor 1400 (APR1400) includes a number of design improvements and plans to utilize advanced maintenance methods and robotics to minimize the annual collective dose. The major radiation exposure reduction features implemented in APR1400 are a permanent refueling pool seal, quick opening transfer tube blind flange, improved hydrogen peroxide injection at shutdown, improved permanent steam generator work platforms, and more effective temporary shielding. The estimated average annual occupational radiation exposure for APR1400 based on the reference plant experience and an engineering judgment is determined to be in the order of 0.4 man-Sv, which is well within the design goal of 1 man-Sv. The basis of this average annual occupational radiation exposure estimation is an eighteen (18) month fuel cycle with maintenance performed to steam generators and reactor coolant pumps during refueling outage. The outage duration is assumed to be 28 days. The outage work is to be performed on a 24 hour per day basis, seven (7) days a week with overlapping twelve (12) hour work shifts. The occupational radiation exposure for APR1400 is also determined by an alternate method which consists of estimating radiation exposures expected for the major activities during the refueling outage. The major outage activities that cause the majority of the total radiation exposure during refueling outage such as fuel handling, reactor coolant pump maintenance, steam generator inspection and maintenance, reactor vessel head area maintenance, decontamination, and ICI & instrumentation maintenance activities are evaluated at a task level. The calculated value using this method is in close agreement with the value of 0.4 man-Sv, that has been determined based on the experience aid engineering judgement. Therefore, with the As Low As Reasonably Achievable (ALARA) advanced design features incorporated in the design, APR1400 design is to meet its design goal with sufficient margin, that is, more than a factor of two (2), if operated on art eighteen (18) month fuel cycle.

• 한국문헌정보학회지
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• 제25권
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• pp.151-183
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• 1993

As many Korean libraries has begun to be automated and become a part of the worldwide, open library system, they need a new management. Therefore, the purpose of this paper is to explore the library management in automated libraries and to establish a theory of the library management in information society, The automated libraries could be well explained by the systems theory and the environment of the libraries could be well explained by the contingency theory, The following hypothesis were set to direct this research. 1. As the libraries are automated and become a part of one big, worldwide library system, the libraries interact closely with the environment so that the library and the environment become one. 2. As the libraries are automated and become a part of one big, worldwide library system, the librarians need to work in the environment for the library networks, standardization of cataloging, or government information policy making. 3. As the libraries are automated and become a part of one big, worldwide library system, the librarians only manage the library, The various other library staffs take over the traditional library services directly related to books. The data were gathered from the research done previously, Also the date were collected from the American and Japanese libraries. The findings were as follows: The environment of the library integrated all types of the library services such as school library, university library, etc. And it also integrated all the services of the media centers and the press centers, etc. to library services. And the new library services began in the environment. Librarians worked for these new services. In the library, the librarians distingushed the library system from the environment by planning : mission, goal, objectives, policy, procedures and rules. Library organization became temporary such as forming task forces or matrix or free form. The environment controlled the library. Staffs were controlled by plans or computers. And the professional librarians were controlled by their ability to solve problems raised outside the libraries. Library leaders brought in the technology to the library from its environment. The librarians led the formal and informal organizations so that the staffs cooperated well in their work. And librarians tought the library procedures to the partime workers or the temporary staffs. Participative management and management by objectives were the means of motivating staffs. Budget was based on the ever changing environment. The zero based budget method was applied. Therfore, in the information society, the professional librarians become the able managers in the library and global librarians in the environment.

• 산업노동연구
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• 제19권1호
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• pp.213-260
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• 2013

본 연구는 비정규직의 규모가 점진적으로 감소하고 있는 브라질의 비정규노동현황과 그 요인들을 통해 우리나라에 대한 시사점을 찾고자 하였다. 브라질 비정규직의 감소원인을 종합적으로 파악하기 위해 문헌과 통계청 자료를 확인하고, 구체적인 실태파악을 위해 상파울로 주에 있는 6개 제조업에 대한 사례조사를 실시하였다. 문헌연구결과, 비정규관련 노동법 조항과 제도들은 비정규직의 제한적 활용에 기여하는 것으로 나타났다. 브라질의 노동법은 고용형태가 다르더라도 비정규노동자를 임시적인 목적으로만 고용할 수 있도록 다양한 측면에서 규정하고 있으며 동일노동 동일임금 및 최저임금제도가 정규직과 비정규직의 임금차별을 완화하여, 결과적으로 사용자의 비정규활용 동기를 감소시키는 것으로 해석되었다. 또 노동검찰과 노동법원은 위법적인 비정규활용을 엄격하게 감시하는 역할을 통해 법적 테두리를 넘어서는 비정규고용을 억제하고 있었다. 사례조사결과, 대부분의 기업에서 비정규직은 임시적인 형태로만 고용되어 있었으며 다수의 사례기업에서 비정규직의 정규직화가 이루어지고 있음을 확인하였다. 이러한 비정규고용에 대한 법적 제한과 정규직화는 노조의 정치적 영향력 확대와도 밀접하게 관련되어 있었다. 브라질의 사례는 우리에게도 적지 않은 시사점을 제공할 수 있을 것으로 기대되었고, 이를 연구의 결론에서 토론하였다.

• 한국지반신소재학회논문집
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• 제20권1호
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• pp.1-8
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• 2021

도심지에서는 공간 활용을 위해 구조물 하부 깊은 지하까지 구조물을 설치하고 있다. 그래서 구조물 건설 시, 지반에서 발생하는 토압을 방지하기 위해서 흙막이를 활용하고 있다. 굴착공사에 적용되던 흙막이가 건설기술의 발전으로 인해서 성토 공사나 옹벽 설치시에 가시설 낙석이나 산사태와 같은 위험 방지용으로도 이용되고 있다. 일반적으로 성토공사시 가시설 흙막이를 적용하는 경우는 기존에 존재하는 도로나 철도를 확장하는 경우이다. 그러므로 고속철도의 복선화 현장과 같은 성토공사에 적용되는 흙막이에 관한 연구가 필요하다. 본 연구에서는 일반적인 1열 H-pile 흙막이와 지주식 흙막이 2종류에 대해 수치해석을 하였으며, 고속철도의 단선지역에 성토하여 복선화하는 공사에 적용된 흙막이의 안정성을 분석하였다. 지주식 흙막이는 사면안정에 적용되는 억지 말뚝(이하 배면지주)을 흙막이 벽체(이하 전면지주)에 경사지게 결합한 공법이다. 분석결과, 지주식 공법은 동적하중이 적용되는 동안, 전면에만 H-plie이 설치된 타입에 비해 수평변위가 최대 19.0%만 발생하였다. 또한, 고속철의 운행속도가 느릴수록 변위가 많이 발생하였으며, 이 결과는 운행속도가 저속인 구간에서의 지반 설계시 더욱 주의가 필요하다는 것을 보여준다.