• 제목/요약/키워드: Clean-up worker

검색결과 9건 처리시간 0.026초

GUI 기반 해양오염원 정보제공 SIMULAIOR 구현에 관한 연구 I (A Study on Realizing the GUI Based Ocean Pollutant Information Simulator I)

  • 노준혁;윤성환;김명훈;윤범상
    • 한국해양환경ㆍ에너지학회지
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    • 제5권3호
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    • pp.23-27
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    • 2002
  • 기름유출이나 적조 등에 의한 해양오염사고가 빈번하게 발생되고 있고, 이들을 처리하기 위한 방제작업이 수행되고 있다. 효과적인 방제작업을 수행하기 위해서는 오염원의 거동을 방제자가 신속히 예측하여 오염원의 확산을 막아야한다. 본 연구는 해양오염원의 이동예측을 방제자가 손쉽게 수행 할 수 있는 프로그램 개발에 관한 내용이다. 본 논문에서는 GUI 기법을 이용하여 연구중인 ODM(Oil Diffusion Modelling)의 구성과 내용에 관하여 소개하였다. ODM은 전ㆍ후 처리부분과 수치해석 부분으로 나뉘어 있으며 윈도우 환경으로 구성되어 방제담당자가 손쉽게 프로그램을 작동시켜 결과를 확인 할 수 있도록 하였다. 본 연구가 계속 진행됨으로서 보다 편리한 확산예측 프로그램이 개발될 것으로 기대한다.

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허베이 스피리트호 원유유출시 방제작업과 대사증후군의 연관성 (Association between Metabolic Syndrome and Participation in Clean-up Work at the Hebei Spirit Oil Spill)

  • 이익진;장봉기;이종화;손부순;정해관;하미나;최영현;박명숙
    • 한국환경보건학회지
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    • 제41권5호
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    • pp.335-348
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    • 2015
  • Objectives: We aimed to assess the risk of metabolic syndrome one year after the 2007 Hebei Spirit oil spill in Taean, Korea among people exposed to spilt oil during clean-up work. Methods: A total of 6,923 adults, including 3,019 males and 3,904 females, participated in the study. Health examinations and blood tests (total cholesterol, triglycerides, HDL, fasting blood sugar) were performed. A logistic regression model adjusting for age, gender, smoking history, drinking history, income, education, and marital status was used to estimate the risk of metabolic syndrome associated with the level of oil spill exposure. Results: The prevalence of metabolic syndrome was 24.9% among males and 18% among females. Compared with people living within 20 km of the coastline, the risk of metabolic syndrome among people living within 0.8 km of the coastline was significantly higher (male OR=1.696, 95% CI=1.320-2.178, female OR=1.992, 95% CI=1.549-2.561), including a significant dose-response relationship for distance from early contaminate coastline (p<0.001). The risk of metabolic syndrome was higher according to the increase of duration of cleaning work. The risk of metabolic syndrome among people who participated in the clean-up work for more than 116 days, compared with people who participated in the cleaning work for or less 14 days, was significantly higher (male OR=1.845, 95% CI=1.448-2.353, female OR=1.752, CI=1.378-2.228), with a significant dose-response relationship for days of clean-up work (p<0.001). Conclusion: This study showed that there is a significant association between exposure to the oil spill during the clean-up work, distance from early contaminate coastline and the risk of metabolic syndrome in a doseresponse manner.

공기 청정지역(Class 100 이하)에 적합한 정전기 제거장치의 개발 및 특성에 관한 연구(I) - LCD 제조 공정을 중심으로 - (A Study for Development and Characteristics of Electrostatic Eliminator Suitable for the Super Clean Room Less than Class 100(I))

  • 정용철;박훈규;이동훈
    • 한국안전학회지
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    • 제21권4호
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    • pp.60-65
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    • 2006
  • It is a well known fact that LCD is a central part of the IT industry which is important in the present and the future. But the biggest problem of LCD manufacturing is maintaining a cleaning room environment and administration. Therefore the purpose of this study is to first, prevent the yield depreciation and damage of products, and second, protect the worker ftom accidental electrostatic discharge during LCD manufacture. The soft x-ray ionizer is a type of electrostatic reducer device. It protects against electrostatic discharge in the cleaning room environment and is a necessary environmental factor during LCD production. The positive aspects of the soft x-ray are its shorter time and wider angle of exposure. But the negative aspect of the soft x-ray is its need for several shielding of protection from the harmful x-ray exposure. On this study, the development of the Air Nozzle-type ionizer to amend and refine some problems. For example, examined the electrostatic reduce device of a soft x-ray type and discovered the ion did not go inside well. also workers to be free from danger. An Air Nozzle-type ionizer is comprised of soft x-ray radiation and ionized air production. Air is injected through the nozzle after being ionized from radiation. It supplies air keeping the same pressure into the end foundation of ion production. The soft x-ray is the structure which radiates ionized air through the nozzle (21 holes) having micro holes of the ionizable radiation after ionizing the inside air by the ion production. A worker does not need a cover to protect against x-rays and the Air Nozzle-type ionizer is easy to set up and is more effective at eliminating electrostatic.

보육교사들이 선택한 갈등관리전략 (Interpersonal Conflict Management Strategies Selected by Childcare Teachers)

  • 백은영;서영숙
    • 한국보육지원학회지
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    • 제8권1호
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    • pp.109-124
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    • 2012
  • 본 연구는 보육교사들이 교직원들과의 갈등상황에서 어떤 갈등관리전략을 사용하는지를 알아보기 위해 시작되었다. 이를 위해 연구자는 C직장어린이집 0세반에서 참여관찰 하여 교사들의 대화에서 드러난 갈등의 원인별로 보육교사들이 사용한 갈등관리전략을 분석하였다. 첫째, 보육교사들은 적합한 간식제공 방법을 건의했으나 조리사들이 개선해주지 않는 상황과 교사용 간식이 정당하게 제공되지 않는다고 느끼는 상황에서 지배적인 갈등관리전략을 사용하였다. 둘째, 보육교사들은 보육시간 중에 환경미화원이 도움을 요청한 상황과 주임교사에게 갑작스런 업무를 부여받을 수도 있음을 알게 된 상황에서 회피적인 갈등관리전략을 사용하였다. 셋째, 보육교사들은 대체교사를 구하지 못해 휴가를 가기 어려워진 상황에서 통합적인 갈등관리전략을 사용하였다. 넷째, 보육교사들은 휴가기간 동안 교사근무배치를 원장이 제안한 상황에서 배려적인 갈등 관리전략을 사용하였다. 다섯째, 보육교사들은 공동으로 관리하는 유희실을 특정 교사들만 청소하게 되어 불합리하다고 느끼는 상황에서 타협적인 갈등관리전략을 사용하였다.

폭약 및 폭탄 제조시 발생하는 시클로나이트의 작업자 노출수준 평가 (Worker's exposure assessment of cyclonite in explosive compounds and bomb manufacturing companies)

  • 정지연;이지현;김은영;이승훈
    • 한국산업보건학회지
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    • 제21권1호
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    • pp.55-61
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    • 2011
  • Cyclonite is a white powder and is very explosive. It can cause seizures (a problem of the nervous system) in human and animals when large amounts are inhaled or eaten. Research papers for workers exposure assesment of the cyclonite are very a few in the world. A field study was conducted at explosive compounds and bomb manufacturing companies to evaluate workers exposure to cyclonite. The airborne average concentration of cyclonite in explosive compounds manufacturing company was $4.10{\mu}g/m^3$(range: ND - $59.92{\mu}g/m^3$), and that of cyclonite in bomb manufacturing company was $31.49{\mu}g/m^3$(range: ND - $291.41{\mu}g/m^3$). Package process and assembly process in both companies were considered the high potential of exposure to cyclonite. Even though all airborne concentrations of cyclonite were lower than occupational exposure standard (MOEL: $500{\mu}g/m^3$), exposure to cyclonite can also occur through dermal contact during manufacture, handling, and clean-up of cyclonite. So control measures for protecting skin absorption of cyclonite were needed for preventing adverse health effect by cyclonite exposure.

독립구동방식의 콩 탈곡기 시스템 개발 (Development of The Bean Threshing System using Independent Driving)

  • 장봉춘;김성철
    • 한국산학기술학회논문지
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    • 제14권9호
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    • pp.4124-4129
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    • 2013
  • 본 연구는 무한궤도와 엔진 및 유압장치를 두어서 독립적으로 구동할 수 있는 탈곡기를 3차원 설계후 시제품을 제작하는 데 목적을 두었다. 탈곡기의 기능을 충실히 수행하기 위해서 탈곡통에 칼날을 나선형으로 배치하여 탈곡성능이 향상되게 하였다. 또한 뒤쪽에 배출구를 두어서 잔여부산물들이 적채되는 기존의 탈곡기 문제를 해결하였다. 부산물들이 콩과 섞여서 배출되지 않게 하려고 경사진 벨트를 내부에 두어 부산물들만 직접 송풍하도록 설계하였다. 완전히 정선된 콩만이 스크류 축을 통해서 통에 적재되면 송풍팬을 통해 배출관 파이프를 따라 이동하여 최종적으로 포장자루에 바로 담을 수 있도록 편의성을 고려하여 설계하였다. 본 독립구동방식의 콩 탈곡기 시스템은 산학협력을 통하여 국산화한 기술로서 국내 최초의 독립구동 방식의 자주형 콩 탈곡기 시스템이다.

항만하역관할의 원인분석 및 예방대책에 관하여 (On the Countermeasure for Preventing the Accident of Cargo Handling in Port)

  • 박용욱;이철영
    • 한국항해학회지
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    • 제17권3호
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    • pp.57-68
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    • 1993
  • The economy of Korea has grown up significantly in its scale. It has, therefore, become imperative to develop countermeasures to prevent work related injuries and occupational illnesses resultining from haza-rdous working conditions and handling harmful substances. A lot of cargo handling accident in port have occurred due to the characteristics of poor working environment, diversity of working place and method, fluctuation of the amount of cargo and handling of heavy, long, harmful and dangerous cargo, etc. According to '91 industrial accident analysis carried out by the ministry of labour, the number of the stevedores injured by cargo handling accident in port were 1, 432 persons (the death accident : 22 per-sons), the amount of industrial accident compensation in port was 6.7 billion won (the amount of economic loss : 33.6 billion won), and the injury occurance rate of the stevedoring industry was higher than that of the whole industry. This paper, therefore, aims to the actual status of the stevedoring industry and to extract the main cau-ses of the accidents related to cargo handling in port through factor analysis using the data of the accide-nts in the whole habour from 1990 to 1992, and to suggest the countermeasures to prevent such accident. The main causes of the accident and countermeasures are found to be as follows through the factor analy-sis : Factor1, factor2, and factor3 related to a defect of human being and management, a defect of state and environment, and an insufficiency of education and law are extracted. The short-term countermeasures to prevent these accidents are 1) to consolidate the safety and health organization in the working spot, 2) to secure a safe condition in working spot before dock work, 3) to strengthen a dock worker's safety educa-tion. The long-term countermeasures are 1) to promote a decasualisation of dock workers, 2) to modernize the cargo working methods through constructing exclusive pier and introducing exclusive cargo handling equipment, 3) to establish a exclusive dock accident prevention organization and the dock workers law. Factor 4, factor5, factor6, and factor7 related to an unfitness, a deficiency of technical knowledge, a nonfu-lfilment of safety measures, and a bad arrangement are extracted. The countermeasures to prevent these accidents are 1) to perform a complete safety inspection of cargo handling equipments and tools and to carry out the dock work according to a working plan, 2) to publish and supply technical safety books, safety instruction book, safety check list, etc., 3) to strengthen the safety patrol at the working spot in habour and to activate a safety fund, 4) to maintain always a clean workshop with the safety consciousness in which the good arragement of the working spot is considered to be the beginning of safety.

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토양 침투수중 MCPP의 유도체화 및 잔류분석 (Derivatization and Residual Determination of MCPP in Soil Leachate)

  • 홍무기;알버트스미스
    • 한국환경농학회지
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    • 제13권2호
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    • pp.199-208
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    • 1994
  • 토양 침투수중에 잔류하는 제초제 MCPP를 추출, 유도체를 합성하여 GC-MS로 확인하고 capillary GC-ECD로 잔류분석하였다. Diazomethane과 $BF_3$/MeOH 등을 이용하여 합성한 MCPP의 methyl 유도체, 황산을 촉매로 이용하여 합성한 MCPP의 2,2,2-trifluoroethyl(TFE) 및 2,2,2-trichloroethyl(TCE) 유도체, 그리고 MCPP의 pentafluorobenzyl(PFB) 유도체간의 잔류분석법을 비교한 결과 이 연구에서 개발된 MCPP-TFE 유도체화가 간편하고 신속, 안전한 유도체화 기술로서 GC-ECD에서 비교적 감도가 우수한 편이었다. MCPP의 methyl 유도체는 GC-ECD에서 그 감도가 너무 낮아 시료가 소량인 경우 ppb 수준의 잔류분석이 불가능하였고 MCPP-TCE 및 MCPP-PFB 유도체는 그 감도는 우수하였으나 크로마토그람상의 방해물질이 많아 액액분리에 의한 정제만으로는 잔류분석이 곤란하였다. MCPP-TFE 유도체화에 의하면 토양침투수 100ml중 $0.1{\mu}g$ 미만의 농도를 가진 MCPP의 잔류분석이 액액분리에 의한 정제만으로 가능하였다.

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우리나라 농촌(農村)의 모자보건(母子保健)의 문제점(問題點)과 개선방안(改善方案) (Problems in the field of maternal and child health care and its improvement in rural Korea)

  • 이성관
    • 농촌의학ㆍ지역보건
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    • 제1권1호
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    • pp.29-36
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    • 1976
  • Introduction Recently, changes in the patterns and concepts of maternity care, in both developing and developed countries have been accelerating. An outstanding development in this field is the number of deliveries taking place in hospitals or maternity centers. In Korea, however, more than 90% of deliveries are carried out at home with the help of untrained relatives or even without helpers. It is estimated that less than 10% of deliveries are assisted by professional persons such as a physician or a midwife. Taking into account the shortage of professional person i11 rural Korea, it is difficult to expect widespread prenatal, postnatal, and delivery care by professional persons in the near future, It is unrealistic, therefore, to expect rapid development of MCH care by professional persons in rural Korea due to economic and sociological reasons. Given these conditions. it is reasonable that an educated village women could used as a "maternity aid", serving simple and technically easy roles in the MCH field, if we could give such a women incentive to do so. The midwife and physician are assigned difficult problems in the MCH field which could not be solved by the village worker. However, with the application of the village worker system, we could expect to improve maternal and child hoalth through the replacement of untrained relatives as birth attendants with educated and trained maternity aides. We hope that this system will be a way of improving MCH care, which is only one part of the general health services offered at the local health centre level. Problems of MCH in rural Korea The field of MCH is not only the weakest point in the medical field in our country hut it has also dropped behind other developing countries. Regarding the knowledge about pregnancy and delivery, a large proportion of our respondents reported having only a little knowledge, while 29% reported that they had "sufficient" knowledge. The average number of pregnancies among women residing in rural areas was 4.3 while the rate of women with 5 or more pregnancies among general women and women who terminated childbearing were 43 and 80% respectively. The rate of unwanted pregnancy among general women was 19.7%. The total rate for complications during pregnancy was 15.4%, toxemia being the major complication. The rate of pregnant women with chronic disease was 7%. Regarding the interval of pregnancy, the rates of pregnancy within 12 months and within 36 months after last delivery were 9 and 49% respectively. Induced abortion has been increasing in rural areas, being as high as 30-50% in some locations. The maternal death rate was shown 10 times higher than in developed countries (35/10,000 live births). Prenatal care Most women had no consultation with a physician during the prenatal period. Of those women who did have prenatal care, the majority (63%) received such care only 1 or 2 times throughout the entire period of pregnancy. Also, in 80% of these women the first visit Game after 4 months of gestation. Delivery conditions This field is lagging behind other public health problems in our country. Namely, more than 95% of the women deliveried their baby at home, and delivery attendance by a professional person occurred only 11% of the time. Attendance rate by laymen was 78% while those receiving no care at all was 16%. For instruments used to cut the umbilical corn, sterilized scissors were used by 19%, non-sterilized scissors by 63% and 16% used sickles. Regarding delivery sheets, the rate of use of clean sheets was only 10%, unclean sheets, vinyl and papers 72%, and without sheets, 18%. The main reason for not using a hospital as a place of delivery was that the women felt they did not need it as they had previously experience easy deliveries outside hospitals. Difficult delivery composed about 5% of the total. Child health The main food for infants (95%) was breast milk. Regarding weaning time, the rates within one year, up to one and half, two, three and more than three years were 28,43,60,81 and 91% respectively, and even after the next pregnancy still continued lactation. The vaccination of children is the only service for child health in rural Korea. As shown in the Table, the rates of all kinds of vaccination were very low and insufficient. Infant death rate was 42 per 1,000 live births. Most of the deaths were caused by preventable diseases. Death of infants within the neonatal period was 83% meaning that deaths from communicable diseases decreased remarkably after that time. Infant deaths which occurred without medical care was 52%. Methods of improvement in the MCH field 1. Through the activities of village health workers (VHW) to detect pregnant women by home visiting and. after registration. visiting once a month to observe any abnormalities in pregnant women. If they find warning signs of abnormalities. they refer them to the public health nurse or midwife. Sterilized delivery kits were distributed to the expected mother 2 weeks prior to expected date of delivery by the VHW. If a delivery was expected to be difficult, then the VHW took the mother to a physician or call a physician to help after birth, the VHW visits the mother and baby to confirm health and to recommend the baby be given proper vaccination. 2. Through the midwife or public health nurse (aid nurse) Examination of pregnant women who are referred by the VHW to confirm abnormalities and to treat them. If the midwife or aid nurse could not solve the problems, they refer the pregnant women to the OB-GY specialist. The midwife and PHN will attend in the cases of normal deliveries and they help in the birth. The PHN will conduct vaccination for all infants and children under 5, years old. 3. The Physician will help only in those cases referred to him by the PHN or VHW. However, the physician should examine all pregnant women at least three times during their pregnancy. First, the physician will identify the pregnancy and conduct general physical examination to confirm any chronic disease that might disturb the continuity of the pregnancy. Second, if the pregnant woman shows any abnormalities the physician must examine and treat. Third, at 9 or 10 months of gestation (after sitting of the baby) the physician should examine the position of the fetus and measure the pelvis to recommend institutional delivery of those who are expected to have a difficult delivery. And of course. the medical care of both the mother and the infants are responsible of the physician. Overall, large areas of the field of MCH would be served by the VHW, PHN, or midwife so the physician is needed only as a parttime worker.

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