• 한국진공학회:학술대회논문집
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• 한국진공학회 2014년도 제46회 동계 정기학술대회 초록집
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• pp.329.1-329.1
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• 2014

In this paper, we report electrical, optical and structural properties of Al-doped zinc oxide (AZO) thin films deposited at different substrate temperatures and pressures. The films were prepared by radio frequency (RF) magnetron sputtering on glass substrates in argon (Ar) ambient. The X-ray diffraction analysis showed that the AZO films deposited at room temperature (RT) and 20 Pa were mostly oriented along a-axis with preferred orientation along (100) direction. There was an improvement in resistivity ($3.7{\times}10^{-3}{\Omega}-cm$) transmittance (95%) at constant substrate temperature (RT) and working pressure (20 Pa) using the Hall-effect measurement system and UV-vis spectroscopy, respectively. Our results have promising applications in low-cost transparent electronics, such as the thin-film solar cells and thin-film transistors due to favourable deposition conditions. Furthermore our film deposition method offers a procedure for preparing highly oriented (100) AZO films.

• 한국주거학회논문집
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• 제18권6호
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• pp.103-113
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• 2007

In Korea, open spaces of urban housing do not serve residents as "regular living areas". We carried out research on the "streets" of urban housings in that the meaning of traditional "streets", playing roles which are not only means of passage but also boundary of life, cannot include present meaning of "streets" of the urban housing. This research is to propose the direction of planning Community Streets for the recovery of the public- and communal urban housing's streets, researching the present employment condition of Community Streets that were prepared recently. Working with 3 complexes which have been completed since 2000, We studied the present employment condition and planned signification, according to the conditions of their surroundings, the physical conditions of Community Streets, and the relationship among main apartment buildings, open spaces, and facilities. From this study, We came up with several suggestions that can present the planning line of Community Streets. Therefore this research is to create the Community Streets for the activity of the streets, the recovery of the community, and improvement of ambulatory environment.

• 한국직업건강간호학회지
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• 제25권4호
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• pp.300-310
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• 2016

Purpose: Few studies have considered the psychosocial work environment factors in relation to employee health. This study explored the relationship between psychosocial work characteristics and self-rated health among Korean employees. Methods: The study population of 21,476 employees was derived from the 2014 Korean Work Environment Survey (KWES). Psychosocial work environment was measured by Copenhagen psychosocial questionnaire scales. Results: Among employees at workplaces (n=21,476), 23.3% rated their health as poor. Among 12 indicators of psychosocial work environment characteristics, 'higher emotional demand', 'demands for hiding emotions', 'work-family conflict', and 'social community at work' were independently associated with risk of poor self-rated health of Korean employees after adjustment of all sociodemographics, work condition characteristics and physical work environment exposure. In addition, higher 'possibilities for development' and 'social support from supervisor' were more likely to decrease the risk of poor health. Conclusion: We suggest that psychosocial work environment is an important determinant of employees' health. The study results provide a good starting point for developing intervention and strategies for health improvement.

• 대한치과의사협회지
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• 제48권6호
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• pp.459-468
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• 2010

International Classification of Disease (ICD-10) is widely used as a crucial reference not only in the medical diagnosis of diseases but also within the health insurance system. It makes possible for medical personnel to make decisions systematically and for the people working in the health insurance or public health industries to better understand medical issues. However, this classification is often not enough or acceptable in a clinical setting. Many countries amend in their own way to make it more appropriate for their people. Korean Classification of Disease (KCD-5) was made by adding a 5 digit code for some diseases to clarify the conditions of the patients. The authors found problems of KCD-5 in temporomandibular disorders and several related medical problems. Medical treatment for these problems had not been covered even by public health insurance until 2000 in Korea. For the last decade, private insurance companies have introduced new items for reimbursement of the treatment fees the patients actually pay. The authors assumed that many patients with these medical problems encountered difficulties in the reimbursement from private insurance companies because KCD-5 did not classify these medical conditions appropriately. An overview of KCD-5 and suggestions for improvement are introduced in this study.

• 한국농공학회논문집
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• 제60권5호
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• pp.95-104
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• 2018

The purpose of this study was to explore the extent of difficulties experienced by facilitators in the rural field forum and to derive a theoretical model for improving the satisfaction of facilitators in the rural field forum. Based on grounded theory, qualitative analysis used data collected through individual in-depth interviews with 10 facilitators who are working at the rural field forum. This collected data was analyzed using the Nvivo 11 program. Using a derived theoretical model, the result of analyzing the difficulties experienced by facilitators in the rural field forum showed the core phenomenon identified as difficulties on-site the forum. There was a clarification of the issues regarding improvement of their labour conditions in order to solve the difficulties on-site the forum. The issues towards improving labour conditions were low allowance, equal assignment, guaranteed four major insurances and so on. The facilitators have been trying to activate the rural field forum by promoting their own capacity through the cooperation between colleagues, post training, seminars, and conferences.

• 한국환경보건학회지
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• 제3권1호
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• pp.27-44
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• 1976

This study was carried out to evaluate the harmful factors in working environments and to investigate the labor productivity after improvement of environments, surveying 93 industrial establishments of 10 industries located in Youngdeungpo industrial area in Seoul. The results obtained were as follows: 1) The highest noise level of 125dB(A) was indicated at the rolling process of transport equipment manufacturing industry. 2) The best illumination level was shown in precise machinery industry and the worst was indicated in rubber products, metallic products and transport equipment manufacturing industries. 3) Thermal conditions were above threshold limit value (TLV) at more than two processes of all industries except printing industry. 4) The highest dust concentration was determined in textile and wearing manufacturing industry. 5) Organic solvents were detected at 52 processes in 93 industrial establishments and 33 processes of them showed higher than TLV. The results about harmful chemicals were as follows: a) sulfur dioxide ($SO_2$)was determined higher than TLV on welding process of metallic product manufacturing industry and heat treatment process of transport equipment manufacturing industry. b) Carbon monoxide (CO) concentration was 700ppm at heat treatment process of transport equipment manufacturing industry, indicating 14 times of TLV. c) vinylchloride concentration in the air of PVC raw material mixing process and PVC preparation process of chemical product manufacturing industry was determined higher than TLV. d) Hydrochloride (HCl) concentration in the air of wire expanding process of transport equipment manufacturing industry was determined higher than TLV. 7) Higher values of lead concentration than TLV were determined at lead welding metallic product manufacturing industry and type planting process of process of printing industry, $1.8mg/m^3$ and $0.3mg/m^3$ respectively. 9) 22, 968 of 52, 855 workers (i.e. 43.5%) in 93 industries were exposed to various harmful agents. 10) It was found that the improvement of illumination in electric apparatus manufacturing industry (from 20~40 lux to 420 lux) resulted in an increase in productivity of 6.5% per capita and a decrease in faulty products of 19%. 11) Improvement of environments using local exhaust ventilation system resulted in a decrease of harmful substances lower than TLV and an increase in productivity of 11.4%. 12) Improvement of shovelling tools based on ergonomics resulted in a reduction in energy expenditure of 25.3% and an increase in productivity of 32.2% per capita.

• 한국식품위생안전성학회지
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• 제1권2호
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• pp.121-131
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• 1986

우리나라 요식업소의 작업 환경 및 급식되는 음식의 위생 상태를 위생 점검표 및 미생물 검사 결과를 기초로 분석, 평가한 결과는 다음과 같다. 1) 주방 및 객실의 위생 상태와 음식점 종사자의 위생 습관은 잠재적 위험성이 존재하는 불량 상태로 평가되어 요식업소 경영자와 종업원의 위생 개념에 대한 교육이 절실히 요구된다. 2) 음식에 대한 미생물 분석 결과, 요식업소의 업종 및 규모에 관계없이 탕류와 같은 높은 온도에서 조리되는 음식의 미생물적 품질은 비교적 좋았으나, 여러 단계의 생산 과정을 거치거나 실온에서 장시간 방치되는 음식 및 차게 급식되는 음식은 미생물적 품질이 낮게 나타났다. 3) 음식의 준비와 조리 과정에서 사용되는 기구 및 용기, 배선시 사용되는 식기의 위생 상태는 미생물 검사 결과, 매우 심각한 상태로 즉각적인 시정이 요구된다. 4) 식품 취급습관 및 주방의 위생환경, 음식의 조리 온도 등은 급식되는 음식의 위생 상태와 유의적인 상관 관계가 있는 것으로 나타났다.

• Journal of Forest and Environmental Science
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• 제20권1호
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• pp.82-92
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• 2004

제방 비탈면의 잡초관리는 상당한 노동력을 필요로 하기 때문에 풀베기 작업을 경감시키기 위해 일반적으로 잡초라고 불리고 있는 식물을 활용하여 "잡초로 잡초를 제어한다" 라는 개념 하에 연구를 추진하고 있다. 제방 비탈면의 식생에는 (1) 침식 및 붕괴방지, (2) 풀베기 작업시의 작업성 등과 같은 식물자체에 요구되는 조건, (3) 숲을 기본으로 한 농촌풍경의 향상 유지 및 (4) 걷기 편함 등이다. 황폐지나 제방 비탈면의 우점종인 식물에 대하여 이 4가지 조건에 맞추어 검토를 실시한 결과, Imperata cylindrica Beauv., Shibataea kumasaca Nakai, Sasaella kogasensis Nakai var. gracillima S. Suzuki 및 Hedera canariensis Willd.가 이용 가능할 것으로 판단되었다.

• 한국보육학회지
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• 제18권4호
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• pp.39-50
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• 2018

최근 보육교사가 수행하는 업무의 다중성 및 법적 신분과 관련된 쟁점이 부각되고 있다. 보육교사는 "근로기준법"상의 근로자이면서, "영유아보육법"상의 보육교직원이고, 누리과정 실시로 인해 "유아교육법"상의 유치원 교사의 업무도 수행한다. 영유아를 보호하고 양육하는 보육교사의 주업무를 기본으로 유아를 대상으로는 누리과정을 통한 교육프로그램을 진행하는 것이다. 하지만 보육교사의 직업적 의무가 법적인 권리와 부합되지 않는 부분이 있어 보육교사의 권리와 의무는 불균형적인 상황에 놓여 있게 된다. 본 연구는 해석주의 인식론에 기반한 질적방법을 활용하여 보육교사들이 현장의 경험을 통해 자신의 권리를 어떻게 인식하는지를 실증적으로 고찰하였다. 연구참여자는 수도권에 근무하는 보육교사 61명이며, 자료수집을 위해 프로토콜(protocol) 서술과 포커스그룹면접(FGI: focus group interview)을 활용하였다. 수집된 자료는 Creswell(2013)이 제안한 자료분석법에 따라 중심주제로 도출되었다. 연구결과를 보면, 보육교사들은 전문직으로서 교육권과 자율권, 근무여건 개선 및 복지후생 요구권, 고충처리 및 신분보장권에 대한 경험적 인식을 구체적으로 진술하였다. 보육교사들은 어린이집의 열악한 근무여건 및 복지후생을 지적하는 동시에 교육권과 자율권이 양질의 보육활동을 위해 강화되어야할 필요조건임을 강조하였다. 한편, 연구참여자들은 고충처리 및 신분보장권이 자신의 권리라는 점에 대한 인식 자체가 낮았고, 해당 권리의 침해를 감수하는 경향을 보였다. 본 연구결과는 보육교사들의 의무와 권리 사이의 간극을 드러내면서 이에 대한 제도적 마련이 필요함을 보여준다. 영유아 전문가로서 인성 및 전문성 강화에 대한 사회적 기대가 높아짐과 동시에 근로에 대한 사회적 가치관의 변화를 고려하여, 보육 현장에 근무하는 교사의 권리 향상을 위한 실천적 대안이 필요하다는 점을 논의하였다.

• 한국안전학회지
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• 제25권6호
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• pp.169-179
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• 2010

The aim of this study was to investigate occupational and individual risk factors and working conditions in relation to musculoskeletal symptoms in street cleaners. Investigation was conducted through a survey of 395 male street cleaners employed by the government office in Seoul, Gyeonggi and Chung-Nam from July to August of 2009. The control group was comprised of 143 male drivers and security guards. Risk factors for musculoskeletal symptoms in street cleaners were investigated by multiple logistic regression analysis and also evaluated ergonomic risk factors by assessing working conditions of 4 street cleaners. As a result of symptom questionnaires, all of the prevalent rates of musculoskeletal symptoms in street cleaners had significantly higher results than those of the control group(p<0.05). On binary logistic regression analysis of musculoskeletal symptoms, street cleaners showed significant higher odds ratio as 18.84(95%CI: 6.56-54.12) in the arm/elbow, 10.49(95%CI: 4.29-25.65) in the hand/wrist compared to the control group. Both absence of rest breaks and exposure to ergonomic risk factors showed to be important internal risk factors of musculoskeletal symptoms among street cleaners. The exposure levels of QEC(Quick exposures checklist) in street cleaners were revealed to be higher on the shoulder/arm, wrist/hand, and neck than back, or from stress. The findings appear to show that street cleaners were high-risk group of work-related musculoskeletal disorders. Therefore street cleaners require a holistic interventional strategy, including adequate arrangement of rest breaks, improvement of working tools and control of individual risk factors such as obesity and smoking.