• 노동경제논집
• /
• 제39권2호
• /
• pp.83-111
• /
• 2016

근로자들이 흡연과 음주행위를 통해서 주관적으로 느끼는 자신의 업무상 위험판단과 산업재해 발생에 어떠한 차이를 보이는지 실증분석한다. 분석 결과에 따르면, 흡연자는 주관적 업무상 위험성은 높고 객관적 산업재해 발생도 높은 반면, 금연자는 주관적 위험은 높게 평가되지만 산업재해 발생은 낮다. 흡연구역 설치로 인해 흡연근로자들의 주관적 업무위험판단과 산업재해 발생이 하락하는 효과가 있으며, 여성보다 남성 근로자에게 효과가 뚜렷하다. 남성 흡연자들의 인적 네트워크 구축으로 인한 효과가 크게 나타나는 것으로, 사업장 내에 다양한 의사소통의 장치가 마련되어 업무의 위해요소와 산업재해 가능성을 줄일 수 있는 선순환구조가 정착되어야 한다.

• 한국지반환경공학회 논문집
• /
• 제18권1호
• /
• pp.5-12
• /
• 2017

한랭지역에 건설된 터널 라이닝은 터널주변 지하수의 결빙 등으로 인한 균열, 누수 및 백태 등이 빈번하게 발생하게 된다. 이러한 터널의 동결피해는 동절기 외기온도에 의해 터널내부 라이닝 및 배면의 지반온도의 하강으로 발생하게 되므로 시공 시 단열재를 설치하여 동결로 인한 피해를 저감하거나 기 시공된 터널에서는 단열재를 설치하거나 발열체 등을 설치하여 동결로 인한 피해를 저감할 수 있다. 본 연구에서는 대기온도의 변화에 의한 라이닝 배면의 지반온도 변화와 발열체가 설치되었을 경우 라이닝 및 배면 지반의 온도변화를 분석함으로써 동결피해 저감을 위한 대응방안 시 나타나는 효과를 분석하였다.

• 대한가정학회지
• /
• 제47권7호
• /
• pp.13-32
• /
• 2009

The purpose of this study was to analyze the state of housing and domestic living conditions of Vietnamese individuals in Vietnam and Korea. Using ethnographic methodologies, It was examined examined 22 Vietnamese households in Korea in relation to their usage of domestic space and also conducted the same investigation on 20 Vietnamese households in Vietnam. The following conclusion were established; 1) The majority of households in both countries preferred that the kitchen was close to the dining room and living room while a kitchen door was not deemed as necessary. 2) In Korea, washing machines are used in the bathroom space, while in Vietnam they are used outside or in a specially designated space. 3) The most uncomfortable aspect of home life in Korea was having the bathroom and toilet in the same space while in Vietnam they are separately spaced. It is recommended that house plans with separate bathroom and toilet area be made available for Vietnamese migrants. 4) Chairs were used in the sleeping area for eating, especially if guests were present, but the floor space was also used for eating. 5) Tile is a typical floor material in Vietnam while vinyl is popular in Korea. However, migrant workers were comfortable with both materials. 6) All 20 households didn't have any heating system in Vietnam but most migrants preferred a modified Ondol in Korea. 7) Most migrants took their shoes off while inside the house in Vietnam and Korea. Furthermore, the majority of households didn’t have any designated shoes space at the entrance to the house in Vietnam and most were satisfied with the same situation in korea. 8) Most households in Vietnam and Korea preferred to decorate their living room with various things or as a place of worship to their ancestors. The direction of house was an important element when deciding to buy or building houses in both countries.

• 한국환경과학회지
• /
• 제17권8호
• /
• pp.841-856
• /
• 2008

This research outlines a new method for evaluation of shellfish production in Gamak Bay based on the concept of EMERGY. Better understanding of those environmental factors influencing oyster production and the management of oyster stocks requires the ability to assess the real value of environmental sources such as solar energy, river, tide, wave, wind, and other physical mechanisms. In this research, EMERGY flows from environment sources were 76% for shellfish aquaculture in Gamak Bay. EMERGY yield ratio, Environmental Loading Ratio, and Sustainability Index were 4.26, 0.31 and 13.89, respectively. Using the Emergy evaluation data, the predicted maximum shellfish aquaculture production in Gamak Bay and the FDA (Food and Drug Administration, U.S.) designated area in Gamak Bay were 10,845 ton/y and 7,548 ton/yr, respectively. Since the predicted shellfish production was approximately 1.3 times more than produced shellfish production in 2005, the carrying capacity of Gamak Bay is estimated to be 1.3 times more than the present oyster production.

• 웰빙융합연구
• /
• 제4권2호
• /
• pp.19-25
• /
• 2021

Purpose: The purpose of this study is to reduce odor complaints by identifying problems with odor management at the site of the water regeneration center and researching odor management methods. Due to the high population density of Korea, sewage treatment facilities are adjacent to residential and industrial areas. According to previous studies, the main malodor-emitting facilities of sewage treatment facilities were preliminary treatment facilities (2,220 times), sedimentation basins (4,628 times), and sludge treatment facilities (9,616 times). Research design, data and methodology: Compound malodors and designated malodor-producing substances were collected from five site boundaries of the water regeneration center and analyzed according to the official methods to test malodor, and a total of two times (August and September 2020) were conducted. Results: As a result of the measurement, in the green area in front of the center office, compound malodors were detected at a maximum of 8 times and at least 3 times during the dawn time. As for the designated malodor-producing substances, 0.1ppm of ammonia was detected in the green area in front of the center office and the park golf course. This is within 15 times the maximum allowable emission level of compound malodors and within 1ppm of the maximum allowable emission level of ammonia. Conclusions: Even if the dilution rate of the compound malodors did not exceed the maximum allowable emission level, the odor could be recognized, and more research is needed in the future to establish effective reduction measures according to the subjective and individual and seasonal odor characteristics.

• 한국항행학회논문지
• /
• 제28권2호
• /
• pp.178-184
• /
• 2024

항공기 탑재 레이다는 전술 목적에 따라 다양한 운용 모드를 가지며, 각 모드별 운용 목적에 맞게 탐색 영역을 설정할 수 있도록 설계된다. 일반적인 AESA 레이다는 조종사가 탐색 영역을 지정하면 지정된 영역내 표적을 탐지하기 위해 사전 정의된 탐색빔 그리드에 따라 차례로 탐색빔을 방사하여 표적을 탐지하게 된다. 이때 자항공기의 자세가 변하더라도 사전에 조종사가 탐지하고자 하는 영역을 안정적으로 탐색할 수 있어야 한다. 본 논문은 항공기 탑재 레이다의 공대공 운용 모드에서 탐색 패턴 안정화를 통해 자항공기의 Roll과 Pitch 기동시에도 표적을 안정적으로 탐지할 수 있는 방안에 관한 것으로, 시스템 통합 시험 (SIL; system integration laboratory) 환경에서 자항공기의 기동과 표적을 모의하여 그 성능을 입증하였다.

• 대한임상독성학회지
• /
• 제1권1호
• /
• pp.59-64
• /
• 2003

Objective: This study was conducted for the nationwide statistical survey of poison exposure to provide the rationale for establishing and developing the poison control center (PCC) in Korea. Design: Study group for Korea PCC in National Medical Center reviewed the medical literature on poison exposure of Korea from death reports of National Statistical Office (NSO), the toxic exposure statistics from the report of National Health Insurance Corporation (NHIC), and poison related data from 119 ambulance services (FD) for the purpose of obtaining the poison and its related data. We also conducted questionnaire from the expert who work in emergency medicine department at the designated 320 emergency medical centers in Korea for the preparedness and acknowledgement about necessity of PCC and their need for that. Results: We reviewed the reliable data from the death report of NSO, poison exposure data from NHIC, and running report from FD. Poisoning death occured at home ($36.7\%$) and hospital ($46.3\%$). Poisoning are more common in rural area than the city area. Patients were seen more frequently in the local clinics than in any hospital. The drugs ($45.7\%$) and pesticide ($18.1\%$) are common poison. Common place to poison exposure were residential area ($39.9\%$), industry ($9\%$). mass residential area ($7\%$). and farm ($6\%$). The education level were primary school ($33.2\%$), high school ($23.7\%$), and middle schol ($21.3\%$) in order. We have to provide the poison guideline for lay public to understand easily, and for medical experts. The medical facilities need to be invested and have more interest for toxicology. All medical staff who work in the designated emergency medical center want PCC to establish. They want to have poison information from hospital ($91.3\%$), regional poison information center ($45.0\%$), regional poison control center ($52.5\%$), nationwide poison information center ($48.8\%$), nationwide poison control center ($46.25\%$), as a role of poison control center. They also want that pcc have poison epidemiologic study and statstics, training program for the experts, registration of rare case of posion on website, reflection of policies to activities for antidote production etc., speedy consultation system for poison analysis, public education, establishment of both regional and national pee, etc. Conclusion: Poison center must be established to provide poison information for all the public and medical experitise, focusing rural area and private clinic, to detoxify, to reduce the cost, time, morbity, and mortality through the whole country.

• 지역사회간호학회지
• /
• 제6권1호
• /
• pp.34-54
• /
• 1995

Occupational health services in Korea have been operated as dual types: one is operated by occupational health care manager and the other is health care agency without their own personnel. The performance of occupational health service should be different due to the variety of characteristics of health care manager and workplace, qualification of health care manager. This study is to analyze performance of occupational health care services with a particular consideration of job, based on comparing those two types of health care management to show on the basic data for the settlement of more qualitative. health care management system at workplace. For this study, total 391 places in Seoul and Inchon city area: 154 places (39.4%) managed by designated. health care manager and 237 places (60.6%) by the agency with their commission are selected as research samples. Tools for data collection are questionnares have been investigated during the period of 20 September 1993-20 December 1993. Those data are compared with percentiles, mean, standard deviation due to the characterstics of each variable and analyzed for impacting factors with relation to the using multiple regression analysis using SPSS PC program, especially using t -test method in order to compare each type of health care management. Conclusions observed from the tests and each comparison could be summerized as follows : 1. Occupational health care have been accomplished at workplaces with designated people than with agencies people, and coverage rate of the occupational health care services has differences, due to management types. The reason of these results is due to visit only one or two times monthly by the agencies, while their own health care manager obsess, at the workplaces all the times. 2. The common sickness management is the most accomplished item in health care area of occupational health care services, while the preventive care and control for the workers who have serious health problems are insufficient in workers health care area. 3. An insufficient accomplishment of overall health education has been shown because it is difficult to perform health education due to almost no chance of the direct introduction at workplaces. Therefore a strong support system for making and supplying the media is necessary in order to activate indirect health education by means of media. 4. Because health care managers and the agencies managers where take the workplaces for this study are almost nurses who have been comparatively high work site rounding rate about an environmental management at the workplaces, that non-profession can also do it, the activities about the professional area not enough. Therefore, an appropriate referral system should be established in order to complement professional area. 5. Two factors which have an effect on the coverage rate of occupational health care services are : one is those from the workplaces such as type of services, the number of workers, the number of harzadous factors and safety & health committee, the other from health care organization about whether there is its own manager or not.

• 환경생물
• /
• 제28권3호
• /
• pp.158-171
• /
• 2010

비교적 크기가 크고 남방계인자들이 간헐적으로 보고 된 덕적도 일대에 대하여 자연자원의 분포를 규명하고, 환경 및 기후변화 등의 기초 자료를 제공하기 위하여 관속식물에 대한 분포조사를 2007년 9월부터 2008년 9월까지 35회에 걸쳐 수행하였다. 본 조사를 통해 확인된 조사지역 내의 소산 관속식물은 108과 320속 480종 2아종 45변종 8품종의 535분류군으로 확인되었다. 관속식물 중에서 국화과 식물이 가장 많은 비율을 차지하고 있었고 벼과, 콩과, 장미과의 순이었다. 특정식물로는 한국 특산 관속식물 4분류군, 산림청 지정 희귀 및 멸종위기식물 6분류군, 환경부지정 특정식물종 55분류군이 각각 조사되었고, 반면에 귀화식물은 50분류군이 조사되어 전체식물상의 약 17.9%를 차지하였다. 조사지역의 식생은 일부 지역에서 인간 활동에 의해 교란되어 있었으나 대체로 양호한 상태이고 일부 지역은 특이할 만한 식물들도 발견되어 체계적인 보호가 요구되어졌다. 인간 간섭이 심할 것으로 판단되는 저지대의 대부분 지역에서 귀화식물의 점유율이 아주 높았고, 차후로 귀화식물의 분포가 빠르게 확산될 것이 예상되어 생태계의 교란이 우려되어 지므로 이에 대한 대책이 수립되어야 할 것으 로 보아진다.

• 한국환경복원기술학회지
• /
• 제18권1호
• /
• pp.71-82
• /
• 2015

Hyla suweonensis is an endemic species and is designated as the only endangered species I among amphibians in 2012 by the Ministry of Environment, however studies about its habitat are lacking. This study was carried out to analyze habitat of H. suweonensis based on the spatial information using Maxent (Maximum entropy model as a species distribution model. We detected 45 present points until 2013 and 10 environmental variables by literature review for the model. The results showed that $429km^2$ (0.95%) of the study area, which was about 7.75% of the total agricultural area, was high possible habitats of H. suweonensis. The habitat of H. suweonensis was analyzed by over $1km^2$ rice paddy fields that were lower elevations, flat slopes, and not fragmented. The distance from forests and rivers was identified as a factor that affects its habitat possibilities. In order to conserve H. suweonensis, a large area of rice paddy fields should be preserved, and especially the area around forests and rivers would be required more intensive management. In addition, to compensate for degraded habitats of H. suweonensis in urban areas like as Suwon city, considering integrated watershed management strategy could be effective in the perspective of ecological habitat network of H. suweonensis.