• 제목/요약/키워드: working table

검색결과 188건 처리시간 0.031초

공업고등학교 용접실습실의 용접흄 발생농도와 국소배기 실태 (Status of Welding Fume Concentration and Local exhaust Ventilation System at Welding Laboratory in Technical High School)

  • 황성환;손부순;장봉기;박종안;이종화
    • 한국산업보건학회지
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    • 제11권1호
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    • pp.1-8
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    • 2001
  • This study was performed to evaluate a local exhaust ventilation system capability and welding fume concentration in welding laboratory at 5 technical high schools. Results of the study are as follows; 1. The personal exposure of welding fume in welding laboratory was measured. The geometric mean of 73 personal samples was $6.27mg/m^3$($3.85{\sim}9.88mg/m^3$), and 68.5% of these exceeded TLV of the Korea Ministry of Labor. 2. The geometric mean of welding fume at outside of booth was $2.27mg/m^3$($1.57{\sim}2.58mg/m^3$). All of measured concentrations were lower than TLV of the Korea Ministry of Labor. 3. Local exhaust ventilation system in welding laboratory could not remove hazardous substance effectively because of inappropriate canopy hood and absurd design. 4. The possibility of exposure risk was estimated to be high because of working point under breathing zone, misplacement of working table and insufficient supply of respiratory protector. 5. The mean values of capture velocity and transportation velocity of local exhaust ventilation system in welding laboratory were 0.38m/sec, 4.27m/sec respectively. These values were satisfied the guideline of the Korea Ministry of Labor. 6. The efficiency of performance of local ventilation system was anticipated to be decreased because of accumulated dust and alien substance on fan and duct.

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병원 근무 간호사가 자각하는 피로 (Subjective Symptoms in Fatigue in Hospital Nurses)

  • 김신정;성명숙
    • 대한간호학회지
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    • 제28권4호
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    • pp.908-919
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    • 1998
  • The purpose of this study was to get some basic data for health care for working women, especially or hospital nurses. The number of subjects was 796 nurses from one general hospital and four private educational hospitals. The data were collected from February to April, 1988 using the questionnaire "Symptom Table on Fatigue Perception" designed by the Research Committee of Industrial Fatigue in Hygienic Association of Japan Industry. The collected data were analyzed using means and standard deviations for the subjective symptoms of fatigue and each item as an independent variable was analyzed by T-test and ANOVA test. The results are as follows 1) The mean score for degree of fatigue was 1.89 and the degree of fatigue for physical symptoms had highest score of 2.04, the next was psychological symptoms at 1.89, and neuro -sensory symptoms were the lowest at 1.74. Among the fatigue symptoms, the item scored most frequently was "Legs feel heavy" with a mean score of 2.40 and the least frequent item was "My hand and foot trembled" with a mean score of 1.40. 2) With the respect to the general characteristics of subjects, there were statistically significant difference according to age (F=17.039, p=.000), state of marriage(t=5.381, p=.000) presence of children(t=5.134, p=.000), clinical experience (F=16.663, p= .000), present position(F=18.204, p=.000), working place(F=12.598, p=.000), duty time(F=9.068, p=.000), monthly wages(F=7.361, p=.000). satisfaction about the pay and treatment at work(t=-5.511, p=.000), relation the doctors(t=-4.593, p=.000) the doctors(t=-4.593, p=.000)

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모 연와제조 공장 근로자의 작업과 관련된 요통 및 대책에 관한 연구 (A Study on the Work-related Low Back Pain of Workers at a Refractories Manufacturing Factory)

  • 정희경;임현술;김지용
    • 한국산업보건학회지
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    • 제7권2호
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    • pp.289-297
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    • 1997
  • Work-related low back pain(below LBP) is one of the major cause of morbidity, disability, limitation of activity and economic loss. Therefore the work-related LBP is one of the major issue in the field of industrial safety and health. This study was performed for detecting the risk factors and proposing the effective control programs of work-related LBP. The subjects were male workers employed at the welding and metal factory. The data was collected by self-reported questionnaire, interview and checking abdomen muscular and grasping power for two days on October, 1993. The contents of questionnaire were as follow: the experience of LBP, general characteristics, physical characteristics, employment status, type of work and working environment. The number of cases was 104 with a history of work-related LBP, so the prevalence of work-related LBP was 35.0%, and the number of controls was 140 without any history of LBP. As a result, marital status, educational level, abdomen muscular power, tenure, category of job, satisfaction of job, working posture, satisfaction for table and chair and lifting materials showed a statistical significance between the case and control groups. 284 Lifting jobs were quantified by NIOSH lifting equation method and ergonomic computer modelling methods. There were no significant differences in the action limit and disc compression force between group with LBP and without LBP. But in the lifting frequency and cumulative disc compression force there were significant differences. Therefore work-related LBP should be prevented by the ergonomic and environmental control.

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해기사의 작업성 요통과 관련요인에 관한 연구 (A Survey on the Causes and Related Factos of Korea Seaman′s Occupational Low back pain)

  • 김재호
    • 한국항해학회지
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    • 제23권2호
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    • pp.67-79
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    • 1999
  • The purpose of this study is to provide basic date on the causes and factors related with the workload on board for Korea Seaman's Low Back Pain. The date had been acquisited through the questionaires of those and analysed in Korea Institute of Maritime and Fisheries Technology from February 10 to April 10 in 1999. The results of this study are as follows: 1. The incidence of Occupational low back pain for the recent 12 months has been recorded as 56.2% of the subject. 2. The highter Occupational satisfaction has the lower incidence of low back pain(p<0.01). and the person who takes a rest(p<0.05) and physical exercise regularly(p<0.01) has lower experience of the incidence. 3. The incidence of low back pain by charateristics of vessel was turn out as 59.3% of the fishing vessel, 55.3% merchantmarine and 52.9% of the vessel of special purpose. The incidence of each department of a ship has recorded as 54.3% of Deck Dept. 59.2% of engine Dept but there was little relationship between those. And the longer period of work and on-board service has the hither incidence of the higher incdence(p<0.01). 4. The fittness of the working table (p<0.01) and chair(p<0.01) has affeced the incidence of low back pain significantly 5. The higher incidence of low back pain has been experienced in case of working: in back posture, and lifting up or carrying a heavy load(p<0.01) 6. The major cause of low back pain was turned out as excessive workload(26.5%) and stress (18.5%) ; the stress(24.1%) and excessive overwork(22.4%) for Deck dept. and excessive workload(32.3%) and bad position(21.7%) for Engine Dept(P<0.01)

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농작업자의 근골격계질환 예방과 작업 효율성 향상을 위한 농작업 편이장비의 평가 (Evaluation of Convenience Equipment for Improve Work Efficiency and Preventing of Farm Work-Related Musculoskeletal Disorders)

  • 이경숙;김관우;채혜선;김창한;남서영;이경미;최연우;박근상
    • 대한인간공학회지
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    • 제29권4호
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    • pp.495-503
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    • 2010
  • The packing and sorting processes of grape are required repetitive movements to need considerable physical load for a long time. And thereby, there is strong possibility to cause musculoskeletal disorders. In this study, ergonomically designed convenience equipments of worktable and handcart are introduced for improvement of the working movements and less physical load to increase the work efficiency. For objective analysis of the movements and the workload between the ones before and after the improvement, we measured heart rate, OWAS, RULA, REBA, LMM, moving Line and work time. Also, we used a checklist of physical fatigue regions to confirm the subjective evaluation of physical load of workers. As the result of study, it showed lower heart rate, value of Working Postures (OWAS, RULA, REBA) and LMM in the work after introduction of those convenient equipments than the work of before the introduction. The work time and moving Line were shortened and the number of grape boxes packed within the same work time was increased, too. Also the overall load as the subjective evaluation was reduced.

1920∼1930년대 서울지역 전통주거의 근대적 특성에 관한 연구 - 박길룡의 '중부지방가구법'에 대한 '주택개량론'을 토대로 - (A Study on the Modernity Characteristics of the Traditional Housing in Seou1 1920s∼1930s - Based on 'Housing Improvement Theory' on 'the Housing Plan of the Middle Area of Choseon' by Park, Kil-Ryong -)

  • 박형진
    • 한국실내디자인학회논문집
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    • 제13권6호
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    • pp.99-106
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    • 2004
  • The purpose of this study is to investigate the modernity characteristics of the traditional housing in Seoul 1920s to 1930s setting the criterion for analyses based on a Korean architect, Park, Kil-Ryong 'Housing improvement theory' about 'the Housing Plan of the Middle Area in Choseon'. The architect Park, Kil-Ryong expressed 'Housing Improvement Theory' positively founded on having a deep knowledge of traditional architecture. At his early working stage in 1928, he announced 'Housing Improvement Theory' about 'the Housing Plan of the Middle Area in Choseon' from the paper titled 'An Inquiry into the Housing of the Middle Area in Choseon', It is inferred that his paper quite affected the modern changes of traditional housing of those days. As the results of the study, even though the main floored room still keeps the symbolical and central position in traditional housing, the size of that is designed to be smaller than before. The room on the opposite side is generally designed widely as the scope more than 2 'KAN' and shows the features of expansion and division according to functions. By interchanging the location of the kitchen, the inner room as the main living space souths in the front of the house. The kitchen is designed as fitting size and separated from the space of working, linking, setting the table, keeping things and others. The bathroom is built in the house and then connected to the corridor. Each space is effectively planned for the best location in the house as considering lightening and ventilation.

객체지향 Data Base를 이용한 토목자재 정보의 이용방안 연구 (A Research on how to turn Object oriented Database of civil materials to practical use)

  • 권오용;한충한;김도근;조찬원
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2008년도 정기학술발표대회 논문집
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    • pp.708-711
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    • 2008
  • 본 연구는 토목공사의 설계, 시공업무에 자재정보 이용 방안 연구를 목적으로 한다. 본 연구 내용 및 결과는 교량공사에 대한 객체지향 DB 적용, 및 토목자재정보의 객체지향 DB 이용방안으로 구분할 수 있다. 첫째, 교량공사에 대한 객체지향 DB 적용은 1) 도로사업 작업분류의 작업 단위를 객체로 구성하고, 각 객체는 수량산출 내역의 자재정보를 데이터로 구성. 2) PSC BEAM 교량의 상부 및 하부 구조에 대한 객체지향 DB를 구성, 3) REVIT Structure 로 3D 교량 Prototype를 개발하여 자재이용 방안을 연구함. 둘째 토목자재정보의 객체지향 DB 이용방안은 설계업무 2D 도면 제작, 재료 표 작성, 구조해석 등, 시공업무, 자재선정, 자재구매, 공정관리, 및 유지관리에 이용가능성을 확인하였다, 본 연구의 결과를 교량공사 전체에 시험적용 및 추가 연구를 수행하여 결과의 신뢰성을 확보를 제안한다.

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『순진한 테러리스트』에 재현된 스?하우스-레싱의 장소정치학 (The Squat Represented in The Good Terrorist: Lessing's Politics of Place)

  • 박선화
    • 영미문화
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    • 제14권1호
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    • pp.27-51
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    • 2014
  • Doris Lessing describes a band of revolutionaries who become involved in terrorist activities far beyond their level of competence in The Good Terrorist. Alice Mellings who is from a middle-class family has organized a squat house in London and seems capable of controlling everyone around her and anything about the house. She is seemingly like a housekeeper or a breadwinner. She also likes to be on the battlefront, for instance, demonstrating, picketing and spray-painting slogans. Such is able to easily exploit the others and she increasingly becomes the leader in the house. Recently some critics have focused on the political and social roles of the protagonist who represents a voice of terrorists in the 1980s England. Based on this, The Good Terrorist is read with the concept of the subject of feminism that Gillian Rose adopts in order to show that this subject tries to avoid the exclusion of the master subject. This subject imagines spaces which are not structured through masculinist claims to exhaustiveness. Alice as the subject of feminism shows different roles; she extorts or steals money for the maintenance of the house from her affluent parents; she spends all her time cleaning, fixing, decorating the deserted house; and she looks after the official affairs related to the house with her skills and experiences. She is systematically in charge of the house and sits at the head of the table in the kitchen. But when their activities turn into disaster and their plans fail, Alice willingly decides to close down the house after ousting the members. Here in her extorted gaze it is revealed that she takes control over the working class members of the house who are unable to lead a revolution because of their own problems and thereby the working class are dominated by the middle class. That is, the place is paradoxically recreated based on class differences, which the revolutionaries try to break. By representing the deconstruction and recreation of the place through squat houses, Lessing reveals her implicit feminism in which a new place should be produced crossing the principle of the dichotomy of gender and class.

일제강점기 미키 사카에(三木榮)의 경력에 대한 고찰 - 조선에서의 활동을 중심으로 - (A Study on Sakae Miki's Experience during Japanese Colonial Period with a Focus on His Activities in Colonial Korea)

  • 장재립;김남일;차웅석
    • 한국의사학회지
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    • 제35권2호
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    • pp.101-111
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    • 2022
  • Sakae Miki, a Japanese medical historian, was a leading figure in the study of medical history in the Korean Peninsula due to his three representative books, Bibliography of Korean medicine, ancient and mediaeval(朝鮮醫書誌), The History of Korean medicine and of diseases in Korea(朝鮮醫學史及疾病史), and A Chronological table of Korean medicine(朝鮮醫事年表). After graduating from Kyushu Imperial University's Faculty of Medicine in 1927, he moved to Seoul (then called Keijo) the following year and lived in colonial Korea until 1944. As a doctor and bureaucrat working for the Government-General of Chosen in colonial Korea, this study focused on his career activities. It was in 1928 when he entered Keijo Imperial University's Faculty of Medicine where he participated in experimental research under the supervision of Professor Shinosaki, who was the chief of the third Institute of Medicine. It was discovered that he received his doctorate in medicine from Kyushu Imperial University in August 1932. In 1933, he became an assistant professor of Keijo Imperial University and started working at the Keijo Prefectural Resident Hospital until 1935. In August 1935, he was appointed as the director of Suigen Provincial Hospital where he served until 1944. While actively practicing medicine in colonial Korea, he spent his spare time researching Korean medical history, which he used for the basis of his later publications.

몇가지 침엽수(針葉樹) 소경재(小經材) 간벌작업(間伐作業)에서의 일반시간(一般時間)에 대한 관계시간연구(關係時間硏究) (A Relative Time Study on the Allowance Time in Thinning of Some Conifer Species)

  • 강건우
    • 한국산림과학회지
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    • 제85권2호
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    • pp.316-324
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    • 1996
  • 본(本) 연구(硏究)는 몇가지 침엽수중(針葉樹中) 소나무, 낙엽송, 리기다소나무, 잣나무 간벌림(間伐林)에서 기준적(基準的)인 1인(人) 1조(組)의 작업방법(作業方法)을 통하여 임금구성상(賃金構成上) 또는 작업공정구성상(作業功程構成上) 기본적(基本的)인 작업시간(作業時間)과 더불어 대별되는 일반시간(一般時間)을 관계시간연구(關係時間硏究)에 의하여 구명(究明)하였다. 1. 시간연구(時間硏究)에 의해 4가지 수종별(樹種別)로 산출(算出)된 일반시간(一般時間)을 침엽수(針葉樹)에 일반적(一般的)으로 적용(適用)하기 위하여 일반시간(一般時間)의 동일구성(同一構成)으로 부터 최대값을 선정(選定)한 결과 인적여유시간(人的餘裕時間) 1.8%, 휴식시간(休息時間) 14.1%, 물적여유시간(物的餘裕時間) 12.5%, 대기시간(待機時間) 0.4%로 산출(算出)되었으며, 이로부터 작성(作成)된 조정일반시간(調整一般時間)의 비율합계(比率合計)는 28.8%로 나타났다. 2. 시간연구(時間硏究)를 통한 표준작업시간(標準作業時間) 추정식(推定式)을 수종별(樹種別)로 산출(算出)하여 관계시간연구(關係時間硏究)로 부터 조정(調整)된 일반시간(一般時間)을 합산(合算)함으로써 임금표(賃金表)나 공정표(工程表)에 사용(使用)되는 "예상임금(豫想賃金) 기준시간(基準時間)"을 표로 작성(作成)하였다.

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