• 제목/요약/키워드: field work

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거푸집 공사의 생산성 측정에 관한 연구 (A Study on the Measure of Productivity of Form Work)

  • 정희경;윤여완;양극영
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2005년도 추계 학술논문 발표대회
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    • pp.149-155
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    • 2005
  • Lately Construction industry depressed by hard construction market condition. So Construction company, especial at this time, make more rationalize the management of inside Company and Construction field. So in this study we are to present the method of calculation reasonable duration at Reinforced Concrete Work. For the study first make up a question at field workers, then sampling the Form workers based the question. Second, We are using Work Analysis Method analysing the worker's work-method and Time. And then using the result of analysis, measure the Productivity of Form work. The productivity of Form work is used the basic data of duration at Reinforced Concrete Work

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쌍줄비계 작업발판 안전기준에 따른 사용 실태조사 (Survey on Work Platform on Double Scaffold by Safety Standards)

  • 최돈흥;최진우;고성석
    • 한국안전학회지
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    • 제26권3호
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    • pp.47-51
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    • 2011
  • Work platform is temporary material that many workers use in construction field, but many workers construct and use the work platform without considering safety standards, workers who have not the knowledge of safety standards construct the work platform in weakness and use the work platform in unstable, According to the statistics in 2009, 1230 people were injured at the work platform. Among them, victims by falling account for about 77% and mostly lead to fatal injuries. we have studied and survey about the safety or danger of the work platform(set limits to duble scaffold) in construction field and about how many workers observe safety standards of the work platform. According to the result of this survey, 24%~100%(average : 68%) of the work platform in survey is not observe the safety standards.

Using Potential Field for Modeling of the Work-environment and Task-sharing on the Multi-agent Cooperative Work

  • Makino, Tsutomu;Naruse, Keitarou;Yokoi, Hiroshi;Kakazu, Yikinori
    • 한국지능정보시스템학회:학술대회논문집
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    • 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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    • pp.37-44
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    • 2001
  • This paper describes the modeling of work environment for the extraction of abstract operation rules for cooperative work with multiple agent. We propose the modeling method using a potential field. In the method, it is applied to a box pushing problem, which is to move a box from a start to a goal b multiple agent. The agents follow the potential value when they move and work in the work environment. The work environment is represented as the grid space. The potential field is generated by Genetic Algorithm(GA) for each agent. GA explores the positions of a potential peak value in the grid space, and then the potential value stretching in the grid space is spread by a potential diffusion function in each grid. However it is difficult to explore suitable setting using hand coding of the position of peak potential value. Thus, we use an evlolutionary computation way because it is possible to explore the large search space. So we make experiments the environment modeling using the proposed method and verify the performance of the exploration by GA. And we classify some types from acquired the environment model and extract the abstract operation rule, As results, we find out some types of the environment models and operation rules by the observation, and the performance of GA exploration is almost same as the hand coding set because these are nearly same performance on the evaluation of the consumption of agent's energy and the work step from point to the goal point.

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The Effects of Work Function of Metal in Graphene Field-effect Transistors

  • Bae, Giyoon;Park, Wanjun
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2014년도 제46회 동계 정기학술대회 초록집
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    • pp.382.1-382.1
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    • 2014
  • Graphene field-effect transistors (GFET) is one of candidates for future high speed electronic devices since graphene has unique electronic properties such as high Fermi velocity (vf=10^6 m/s) and carrier mobility ($15,000cm^2/V{\cdot}s$) [1]. Although the contact property between graphene and metals is a crucial element to design high performance electronic devices, it has not been clearly identified. Therefore, we need to understand characteristics of graphene/metal contact in the GFET. Recently, it is theoretically known that graphene on metal can be doped by presence of interface dipole layer induced by charge transfer [2]. It notes that doping type of graphene under metal is determined by difference of work function between graphene and metal. In this study, we present the GFET fabricated by contact metals having high work function (Pt, Ni) for p-doping and low work function (Ta, Cr) for n-doping. The results show that asymmetric conductance depends on work function of metal because the interfacial dipole is locally formed between metal electrodes and graphene. It induces p-n-p or n-p-n junction in the channel of the GFET when gate bias is applied. In addition, we confirm that charge transfer regions are differently affected by gate electric field along gate length.

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원자력발전소 건설공사의 공종별 위험도에 관한 연구 (A Study on the Risk Level of Work Types in Nuclear Power Plant Construction)

  • 이종빈;이준경;장성록
    • 한국안전학회지
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    • 제28권3호
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    • pp.95-99
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    • 2013
  • The goal of this study was to investigate some significant factors to influence level of safety at plant construction field and analyze degree of risk by work classification. Currently, there are lots of construction fields for the nuclear power plant for electricity generation, and our government also planned constructing more nuclear power plant in near future. However, much of the safety literature neglected the degree of risk factors on the plant construction field. Safety managers participated in the brainstorming session for drawing decision criteria of the degree of risk (i.e., significant factors). Then, they were asked to answer a structured questionnaire which was developed for drawing most important factors. Finally, the analytic hierarchy process (AHP) was used to analyze level of risk by work classification. The following results were obtained. First, total twelve factors judging degree of risk were found in the brainstorming session. Second, the questionnaire showed four significant factors, including number of workers, working environments, skill of craft and accident experience. Third, the results of AHP showed Architecture work is the most dangerous work among 6 work types. The results could be used to reduce degree of risk in construction field of the nuclear power plant.

전기공사 현장대리인의 역할 및 역량에 대한 교육요구분석 (Training Needs Analysis for the Roles and Competency of Field Representatives in Electric Work)

  • 윤현우;윤관식
    • 대한공업교육학회지
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    • 제40권1호
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    • pp.142-162
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    • 2015
  • 본 연구는 전기공사 현장대리인의 역할 및 역량을 도출하고, 현업에 있는 현장대리인의 교육 요구도를 확인하여 향후 국내기업에서 현장대리인이 성공적인 역할을 수행하기 위한 기초자료와 시사점을 제공하는데 그 목적이 있다. 연구목적을 달성하기 위해 (1) 전기공사 현장대리인의 역할 분석, (2) 전기공사 현장대리인의 역량 분석, (3) 전기공사 현장대리인의 역량에 대한 교육 요구분석의 3단계로 연구절차를 설정하였다. 연구방법은 전기공사 현장대리인 전문가 10명에 대한 포커스그룹 인터뷰를 수행하였고, 현업에 종사하고 있는 현장대리인을 대상으로 설문조사를 실시하였다. 요구분석은 현장대리인의 종요도와 현재 수준 간의 차이를 t 검정으로 분석하고, 역량 중요도와 현재수준에 대한 인식차이를 Borich 공식을 활용하여 도출하였으며, The Locus for Focus 모델을 통해 역량 중요도가 높고 불일치수준이 높은 역량을 확인하여 우선순위를 결정하였다. 본 연구의 결과는 다음과 같다. 첫째, 전기공사 현장대리인의 역할은 현장조사자, 서류작성자, 대관업무자 등 13개가 도출되었다. 둘째, 전기공사 현장대리인의 역량은 의사소통능력, 협력적 태도 등 총 16개 역량이 필요한 것으로 도출되었다. 현장대리인의 중요도 인식순위는 의사결정력, 의사소통능력, 실천력, 시간관리능력, 분석적사고 순으로 높게 나타났다. 셋째, 16개의 역량에 대한 현재수준과 중요도의 차이를 분석한 결과 통계적으로 모두 유의미한 차이를 보이고 있고, Borich 요구도 분석 결과 1순위로 요구되는 역량은 '의사소통능력'이었고, '실천력', '갈등관리능력', '분석적사고', '시간관리능력' 순이었다. 또한, The Locus for Focus 모델 분석 결과 제 1사분면(HH)에 포함된 역량은 '의사소통능력', '분석적사고', '의사결정력', '전문성', '시간관리능력', '실천력', '업무추진력'으로 7개 역량에 요구가 높은 것으로 나타났다. 이에 최우선 순위군은 Borich 요구도와 The Locus for Focus 모델에서 공통적으로 나타난 '의사소통능력', '분석적사고', '시간관리능력', '실천력', '업무추진력' 5개 항목이었고, '의사결정력', '전문성', '갈등관리능력', '부하육성' 4개 항목은 차순위 군으로 분석되었다.

사회복지현장실습교육의 현황과 방향에 관한 연구 -사이버대학교를 중심으로- (A Study on the Current Situation and Direction of Social Work Field Practicum - Focused on Cyber University -)

  • 배나래
    • 한국산학기술학회논문지
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    • 제19권12호
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    • pp.197-211
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    • 2018
  • 본 연구는 사이버대학교 사회복지현장실습교육의 현황과 개선방향에 대한 탐색적 연구이다. 연구를 위해 사이버대학교에서 사회복지현장실습교육을 지도한 11명의 교수를 대상으로 질적조사를 실시하였다. 본 연구는 사회복지현장실습교육의 현황을 학생, 학교, 실습기관, 제도로 나누어 살펴보았고, 사회복지현장실습교육의 질 제고를 위한 방안으로 학생의 노력, 학교의 노력, 실습기관의 노력, 한국사회복지사협회의 노력, 제도적 정비, 사회복지실습지도교수의 노력 등으로 개선방안을 분석하였다. 연구의 결과는 다음과 같다. 학생, 학교, 실습기관 등은 사회복지현장실습교육의 중요성을 인식하고 체계적인 교육, 일관성 있는 교육을 위해 노력해야 한다. 또한 사회복지사가 단순한 자격을 가진 직업인이 아니며, 철학과 가치와 이념을 지닌 전문가임을 되새겨야 한다. 사회복지현장실습교육의 개선방향은 다음과 같다. 학교는 사회복지교육과정을 구성할 때, 현장 감각을 높일 수 있는 현실적인 교육과정과 교수법을 갖추어야 한다. 학생은 사회복지사가 미래를 위한 막연한 투자의 일환으로 자격을 취득하는 것이 아니라 인간을 위한 최상의 복지 서비스가 무엇인지를 생각하며 사회복지사로서의 소명을 다하고 클라이언트에게 전문적 도움을 줄 수 있는 전문가적 역량을 갖추어야 할 것이다. 기관은 학생들이 예비사회복지사로서 생생한 사회복지현장을 경험을 하며 이론과 실천을 통합할 수 있는 장을 마련해야 할 것이다. 대한민국은 현재 100만 사회복지사 시대를 눈앞에 두고 있다. 현 시점에서 우리나라 사회복지의 빛나는 미래를 열기 위해 예비사회복지사인 학생, 사회복지인을 양성하는 대학교, 실천현장을 경험할 수 있는 실습기관, 제도를 구축하는 정부가 함께 내실 있는 사회복지현장 실습교육이 될수 있도록 공동의 노력을 기울여야 할 것이다.

여름철 포도 수확 작업 농민의 작업 환경 및 노동 부담 평가 (Evaluation of Farmer's Workload and Thermal Environment During Harvesting Grape in Summer)

  • 최정화;김명주;이주영
    • 대한가정학회지
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    • 제40권11호
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    • pp.193-205
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    • 2002
  • To evaluate farmers' workload during harvesting grapes in summer, this study investigated farmers' physiological, psychological responses, work postures and thermal environment around in the field. This field study was conducted in the Anseong County of Kyonggi Province at the end of August. Five career farmers (1 male, 4 females) volunteered as subjects. Three of them were over their sixties. During harvesting grapes in the field, physiological responses were monitored continuously. 1. Air temperature (T/sub a/), air humidity(H/sub a/), black globe temperature(T/sub g/), air velocity and WBGT around the grape field were 26.9℃, 77.7%RH, 32.8℃, 0.08㎧ and 26.3℃, respectively. Because farmers started the harvesting task in early morning, thermal environments weren't conditions to give farmers severe heat strain. 2. The percentage of the work postures was larger in order of standing, walking, and bending one's back posture. Particularly, the percentage of standing posture with raising both arms above shoulder of two farmers was up to 29% and 61% of the total work duration. 3. Rectal temperature (T/sub re/), mean skin temperature (T/sub sk/), clothing microclimate temperature (T/sub cl/) on the chest and the back, heart rate (HR) and energy expenditure (EE) were 37.2℃, 33.1℃, 32.0℃, 32.4℃, 88bpm and 1.3 Kca1/㎡/min respectively. In the point of these physiological results, we evaluated that the harvesting task was a moderate work. 4. All farmers expressed‘hard, hot, humid and slightly uncomfortable’ at the end of works for each subjective questionnaire. The grape harvesting tasks were not evaluated as a very hard work in the point of physiological work standards. But we considered 1) inappropriate work posture (standing posture with raising both arms above shoulder) and 2) farmers' age as burden factors. These findings suggest that adding adequate protective clothing/equipments for farmers may contribute to maintain their body temperature within the normal range, stabilize HR and decrease psychological strain.

간호사들의 임상근무의 어려움 관련 주요 요인과 임상근무 활성화 방안 분석 - 현장에서 근무하는 간호사 대상 - (The main difficulties related factors of nurses' clinical work and clinical work plan activation analysis - focus on the nurses working in the field -)

  • 박수경;조경미
    • 한국병원경영학회지
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    • 제21권3호
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    • pp.11-21
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    • 2016
  • The purpose of this study is to investigate the degree of difficulty and turnover of nurses working in the field and to derive clinical work activation and supply policy improvements. Data was collected from December, 2014 to January, 2015, from 23 hospitals, and participants were 3,887 nurses working in the field, Survey details : the difficulty of the clinical work of nurses working in hospitals, turnover intentions status and policy proposals for clinical research work enabled General characteristics, difficulties in clinical working, turnover intention and clinical work plan activation are frequency analysis. The difference between each of the variables in accordance with the general characteristics are one-way ANOVA analysis, Correlation analysis of the variables is also a Pearson correlation coefficients. 'difficulties in clinical working' was a statistically significant difference depending on the type of hospital, nursing class, number of beds, location, age, position, employment, gender, working form, working department, salary, career, and degree level. 'turnover intention' was a statistically significant difference depending on nursing rate, number of beds, region, age, position, sex, shifts, departments, annual income, and career. 'policy recommendation' was a statistically significant difference depending on type of hospital, nursing rate, age, position, employ, shifts, departments, annual income, degree level and career 'difficulties in clinical working' is 'turnover intention' (p<.001), 'policy recommendations' (p<.001) and had a significant positive correlation. and 'turnover intention' had a "policy recommendation" significant positive correlation with the relationship (p<.001) The most difficulties point of the nurses working in the field are the environment, such as shift, urgent and dangerous. Major policy proposals are improve treatment such as wages, and welfare.

건설현장 여성 기술인력의 업무능력 분석 (Analysis of the working ability of female engineers in Construction Field)

  • 이대형;이준용;신원상;손창백
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2022년도 가을 학술논문 발표대회
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    • pp.91-92
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    • 2022
  • The construction industry is highly dependent on human resources and changes the degree of completion of construction work depending on the level of performance of engineers. As women's social advancement has recently expanded, the construction industry is also experiencing a large influx. Therefore, it can be seen that not only male engineers' ability to carry out work but also female engineers' ability to carry out work is important. Therefore, this study investigated the actual work conditions and work performance capabilities of female engineers and presented them as basic data for the construction of work capability improvement measures.

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