• 제목/요약/키워드: Labor Condition

검색결과 413건 처리시간 0.03초

양중작업 자동화를 위한 부재진동에 따른 타워크레인의 작업가능 기준 연구 (A study of Operation Criteria of Tower-crane for Automatic Transportation Considering Swung Member)

  • 신윤석;진일권;안성훈;조훈희;강경인
    • 한국건설관리학회논문집
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    • 제9권2호
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    • pp.108-116
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    • 2008
  • 현재 건설현장에서는 인력수급의 어려움과 숙련공의 노령화의 해법으로 건설 자동화가 추진되고 있다. 특히, 건축물의 대형화 및 고층화에 따라 양중작업의 중요성이 높아지면서 작업의 효율성을 향상시킬 수 있도록 타워크레인을 대상으로 한 많은 자동화연구가 진행 중이다. 타워크레인을 이용한 양중작업의 자동화를 위해서는 부재의 관성과 풍하중에 의한 진동을 제어해야 하는데, 제어하기에 앞서 진동을 예측하는 것은 매우 어렵다. 따라서 본 연구에서는 타워크레인과 부재를 대상으로 동적 모델링을 실시하고 시뮬레이션을 통해 부재의 동적 진동을 분석하였다. 그 결과, 작업조건에 따른 발생하는 부재의 최대진동폭과 특징을 분석하였다. 그리고 분석자료를 바탕으로 부재의 특성에 따라 양중작업 자동화가 가능한 풍속기준을 판단할 수 있는 방안을 제시하였다.

한의학 출산생리(出産生理)의 기경팔맥론(奇經八脈論) 적용에 대한 고찰 (A Study on the Application of Eight Extra Meridians Theory to Birth Physiology of Korean Medicine)

  • 류정아;정창현
    • 대한한의학원전학회지
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    • 제26권3호
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    • pp.85-98
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    • 2013
  • Subject : The application of eight extra Meridians theory to birth physiology of Korean Medicine. Objective : This study suggests physiological theories in child birth in Korean Medicine. Method : First, the application of eight extra Meridians and extraordinary organs theories to physiology, pathology, pregnancy, postnatal period of women were examined based on major publications and theories of some historical characters. This work provided clues for application of eight extra Meridians theory to birth physiology. Second, the progressing birth physiology of modern medicine based on the importance of the brain function was examined, with which the application of eight extra Meridians and extraordinary organs theories to the birth process showed close relationship. Conclusion : The following conclusions could be drawn. In traditional publications of Korean Medicine, the contents explaining birth physiology with eight extra Meridians theory were scarce, mainly due to the doctor's perception of birth as part of the natural female physiology along with menstruation and pregnancy. However, the contents explaining menstruation, pregnancy, postnatal physiology and pathology through eight extra Meridians theory could be found in classical texts such as Neijing, Jebyeong-wonhuron, Imjeunginameuian. Therefore, it is reasonable to apply the eight extra Meridians theory to the birth process as well. Modern medicine's understanding that pituitary and hypothalamus hormones are in play on womb in the birth process, such as Oxytocin, is in continuous progress. Moreover, the environmental condition that has been traditionally known ideal to the birth process in both the East and West-dark, warm, quiet and secluded-is being confirmed in modern research. The application of eight extra Meridians theory to birth physiology can help to explain these modern information, and thus make them more acceptable.

근로환경에 따른 우리나라 근로자의 고혈압 분포 (Distribution of Hypertension According to Working Conditions among Korean Worker)

  • 김영선;이경용;송세욱
    • 한국산업보건학회지
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    • 제24권4호
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    • pp.556-565
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    • 2014
  • Objectives: This study is aimed at inquiring into the grasp of real condition of working environment and improvements by calculating the hypertension distribution consequent on job stress risk and exposure level of alleviating factors. In addition, this study is intending to estimate the hypertension distribution through socio-demographic factors and level of stressors occurring at working environment, such as high workload, low control, low support, job insecurity, long working hours, low income. Methods: This study estimated the hypertension distribution using the tertiary Korean Working Conditions Survey data, and conducted comparative analysis according to the category of individual questionnaire items using odds ratio. Result: As a result of study, it was found that in the event that working environment satisfaction is low and business & an immediate superior's attitudes are negative, the hypertension distribution was high. Particularly, it was found that physical risk factor musculoskeletal risk factor, and mental risk factor in a workplace were all increasing the hypertension distribution. Conclusions: With the aged workers' labor market participation ratio increasing, hypertension could be a major issue in the field of Occupational Safety and Health. Thus, it's necessary that the relevant employer should lower the hypertension distribution through creation of pleasant working environment and inducement of workers to improve in the relations with their superiors. As for the uppermost limit of this study, there is a limit to clarifying the mechanism of hypertension through multivariate statistics analysis because it's difficult to establish causal relationship by individual questionnaire item as the working conditions survey is made by cross-sectional study. In the follow-up research, this study is going to do research on the mechanism of hypertension through questionnaire supplementation and in-depth analysis.

지속가능 패션 실용화를 위한 디자인 교육 프로그램 개발 (Developing Design Education Program concerning Sustainable Fashion)

  • 이영선;최현숙
    • 복식
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    • 제64권2호
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    • pp.50-69
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    • 2014
  • Sustainability has been a big issue over the whole global industry lately and is an important fashion trend that reflects the modern phase of the time. The concept of sustainable fashion includes physical fashion products made from eco-friendly or recycle materials as well as ethical value such as corporate social responsibility for environment, labor or working condition. Fashion companies of advanced countries who are aware of the geo-environmental and ethical issues found that generating profits by setting trends and pursuing external beauty can no longer be the ultimate goal of fashion companies, and started to recognize the importance of sustainable fashion as a future-oriented trend. Not only fashion industry but also governments of advanced countries have been playing a leading role to educate the people regarding the importance of sustainable fashion and making large investments to foster industry specialists in educational institution. The aim of this study is to propose sustainable fashion design education program that fits the domestic university curriculum and government-leading education program in order to set the foundation for sustainable fashion industry. Thus, this study investigates successful cases of foreign government-led sustainable fashion education that can be introduced to improve domestic sustainable fashion education. The empirical study of the research is developing 12-15 week university level education program to foster specialists in sustainable fashion. The survey carried out by the students who participated in the program shows the change of perception on sustainable fashion. Developed university level program can be spread to municipal corporation, school of continuing education, and etc. in order to derive participation and problem perception of the citizens on sustainability. Developing systemized sustainable fashion design education program would be the first step of sustainable fashion by educating students who will take the leading role in the future fashion industry. Moreover, it can strongly influence future customer education as well as a special education inducing interest on sustainability in everyday life. A follow-up study is expected to serve as a foundation for sustainable fashion to take root successfully in the fashion industry.

발열환자의 동.서 간호 비교고찰 (A Comparative Study of Eastern and Western Nursing for Pyrexia Patient)

  • 강현숙;김원옥;이정민
    • 동서간호학연구지
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    • 제1권1호
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    • pp.40-49
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    • 1997
  • This study was done for understanding the desirable direction of eastern and western nursing by comparing the nursing practice for the Pyrexia patient occuring most commonly. Body temperature usually maintains around $37^{\circ}C$ owing to the thermoregulatory center but pyrexia is caused by exogenous pyrogen like infection, cancer or disturbances in body's homeostatic heat balance. Pyrexia is defined that body temperature rise above $37.2^{\circ}C$. It has chill phase, course of the fever, termination accompanied various symptoms. Oriental medicine explains that pyrexia comes from Yang's(陽) abundance and Yin's(陰) lack. Pyrexia mainly happens when body constitution is in bad condition by Six Dirty's(六陰) affection to Wi Area (偉分). It also occurs because of unbalance between Qi (氣) and Yin(陰) caused by the lack in Seven Emotions, labor, food. The Sanghanron(傷寒論), explains that pyrexia is categorized exogenous fever like Poong Han(風寒), Poong Yul(風熱), Sup Yul(濕熱) and endogenous fever due to the Qi and blood deficiency. Explained above, even though pyrexia has different meaning in oriental medicine and western medicine, but this study have compared the oriental and western medicine assuming that pyrexia is rise of body temperature. From this point of view, oriental and western nursing shows the similarity in the field of 1) use of antipyretic to control the body temperature 2) rest and comfort 3) watering 4) nutrition and case study was executed in nursing practice. From the above study, western nursing has superiority in decreasing the patient's risen body temperature using antipyretic and ice bag. But in case of empty heat, oriental nursing which recommends the patient's body keep warm and prevent the use of ice bag as the first step and helps patient's sweating by drinking of hot water was comparatively effective. In conclusion, it is desirable that oriental nursing emphasizing the supportive nursing and western nursing should be harmonized according to the status of pyrexia patient and it is needed to study the nursing method appropriate in our culture.

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조명 및 카메라 이동속도가 토양 영상에 미치는 영향 (Effect of light illumination and camera moving speed on soil image quality)

  • 정선옥;조기현;정기열
    • 농업과학연구
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    • 제39권3호
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    • pp.407-412
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    • 2012
  • Soil texture has an important influence on agriculture such as crop selection, movement of nutrient and water, soil electrical conductivity, and crop growth. Conventionally, soil texture has been determined in the laboratory using pipette and hydrometer methods requiring significant amount of time, labor, and cost. Recently, in-situ soil texture classification systems using optical diffuse reflectometry or mechanical resistance have been reported, especially for precision agriculture that needs more data than conventional agriculture. This paper is a part of overall research to develop an in-situ soil texture classification system using image processing. Issues investigated in this study were effects of sensor travel speed and light source and intensity on image quality. When travel speed of image sensor increased from 0 to 10 mm/s, travel distance and number of pixel were increased to 3.30 mm and 9.4, respectively. This travel distances were not negligible even at a speed of 2 mm/s (i.e., 0.66 mm and 1.4), and image degradation was significant. Tests for effects of illumination intensity showed that 7 to 11 Lux seemed a good condition minimizing shade and reflection. When soil water content increased, illumination intensity should be greater to compensate decrease in brightness. Results of the paper would be useful for construction, test, and application of the sensor.

사업장 보건관리자 공동채용모형개발(II)-사업주와 간호사의 의견 비교- (Developing the Joint Employment System of Occupational Health Nurse Practitioners for the Minor Enterprises in Korea (Part 2) - Comparison of Opinions between Employers and Occupational Health Nurses -)

  • 김영임;전경자;이성은;윤순녕
    • 지역사회간호학회지
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    • 제9권2호
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    • pp.313-323
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    • 1998
  • This study is to develop the model on the joint employment system of occupational health nurse practitioners for medium or small sized enterprises in Korea based on the comparison opinions between employers and occupational health nurses (OHN). The data were collected by questionnaires from Oct. to Nov. in 1997. The number of subjects was 210 OHNs and 176 employers, response rate was 47.1% for OHNs and 23.2% for employers. The SAS PC program was used for the descriptive statistics. The results were as follow: 1. More than three years career was preferred for qualification of OHN by employers and OHNs. OHNs preferred that all instruments and materials should be equipped in each industry, but employers preferred that they should be equipped by OHN. 2. For the limit number of industries and employees per one OHN, employers preferred average 2.25 industries and 307 employees, OHNs preferred average 3.0 industries and 448 employees. Both of them preferred two times visit per week for all day long. 3. OHNs wanted that the local office of Ministry of Labor could act as mediator, but employers preferred direct contact individually. For the average wage, employers preferred 887,000 won per month, but OHNs preferred 1,960,000 won per month. 4. OHNs preferred the Korean Association of Occupational Health Nurse as the recruit agency. Finally, employers and OHNs have the opinions that they can choose this system depending on the condition. There is in need of development of effective strategy for this new system such as manpower development, cost-benefit analysis, establishment of occupational health service standard, advertisement for employers, and government supported project.

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치과기공소(齒科技工所)의 운영구조(運營構造) 실태(實態)에 관(關)한 조사연구(調査硏究) (A Study on the Status of Management Structure to Dental Laboratory in Chun-Buk)

  • 정경풍;김종인
    • 대한치과기공학회지
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    • 제13권1호
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    • pp.79-97
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    • 1991
  • To improve the management of dental laboratory through the research on the actual condition, this study posed questions on 36 dental laboratories. The results are as follows : 1. The establishment of dental laboratory in Chunbuk was increased between in 1980 and 1986. Especially it has been more increased since 1989. According to the proportion of population the number of the dental laboratories in Chunbuk was much more than that of other provinces and took the first place in september 1990. 2. The ratio between the unlicensed dental technician and the licensed was 24.83% and 67.11% each . The former must be replaced by the licensed. And the latter ought to try to improve their culture and technique. 3. Overtime payment must be paid for those who work above eight hours. 4. It takes 5 days at a minimum for the production of dental prosthesis with both stability and esthetics. 5. Every Saturday afternoon, Sunday and national holiday must be free. 6. Bonus must be paid 600% a year at a minimum. The system of retirement allowance should be active. All dental technicians ought to be affliated with their labor union and medica insurance. 7. Such dental restoration as porcelain and crown and bridge prosthesis must by increased to a degree between 30% and 50% at a minimum and the reduction system of charge for a dental technique has to be abolished. 8. The general working conditions of dental laboratory, especially pay and working hour must be improved. 9. To advance the service improvement of dental treatment and the banishment of illegal one, the medical insurance of crown and bridge prosthesis must be generally practised. 10. Ill case of the staff cull:lloyulent of dental laboratory, minimem wage system must be observed. 11. Directing dentist system on the ertablisment of dental laboratory must be abelished or wholly improved.

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Malthus를 이용한 원유(原乳)내의 총균수, 대장균군수, 저온성균수 측정 (The Conductance Determination of Total, Coliform and Psychrotrophic bacteria Counts in Raw Milk by Using Malthus)

  • 남은숙;정충일;강국희;정동관
    • 한국식품과학회지
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    • 제26권6호
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    • pp.764-769
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    • 1994
  • 본 실험은 원유내외 세균을 빠르고, 일관성있고, 신뢰성이 있는 평가 system을 얻기 위함이며, 원유 내외 총균수와 저온성균수, 대장균군수를 malthus의 detection time과 regression equation과 상관관계를 조사하였다. Conductance method는 종래의 plate count method보다빠르고 자동적이며, 노동력을 최대한 절감할 수 있다. 그 결과는 다음과 같다. 1. Conductance detection time을 (Y), total bacterial log count를 (X)라고 할 때 regression equation Y=18.27651-2.07550X, 상관계수는 -0.95(n=201)로 나타났다. 2. Conductance detection time을 (Y), total bacterial log counts를 (X)라고 할때 regression equation Y=9.32048-1.15598X, 상관계수는 -0.90(n=207)로 나타났다. 3. Conductance dotection time을 (Y), psychrotrophic bacterial log counts를 (X)라 할때 regression equation Y=29.96008-3,02487X 상관계수는 -0.90(n=201)로나타났다.

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생홍고추 페이스트의 장기 저장조건 설정 (Establishment of Long-term Storage Condition of Fresh Red Pepper Paste)

  • 권동진;조진호;김현구;박무현
    • 한국식품과학회지
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    • 제22권4호
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    • pp.415-420
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    • 1990
  • 수확된 생홍고추의 손실을 방지하고 건조에 소요되는 노력과 경비를 절감코자 생홍고추 페이스트 가공공정 및 저장가능성에 관하여 실험하였다. 생홍고추 페이스트는 10%염을 첨가하므로서 pH4.5 이하로 산성화시킬 수가 있어 Clostridium botulinum포자의 생육을 억제시킬 수가 있어 살균시간을 $100^{\circ}C$에서 10분간으로 단축시키는 것이 가능하였다. 또한 $5^{\circ}C$이하 저온저장시 6개월 이상 성상 및 품질의 변화를 거의 볼 수가 없었다. 따라서 염을 10% 첨가하고 열처리만을 하여 제조한 생홍고추 페이스트는 생홍고추의 싱싱함을 그대로 유지 할 수 있었으며 생홍고추를 페이스트로 제조한다면 $5^{\circ}C$ 이하에서 6재월 이상 장기적으로 저장할 수 있었다.

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