• 제목/요약/키워드: Repetitive tasks

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복합시스템을 위한 간접분산학습제어 (Indirect Decentralized Learning Control for the Multiple Systems)

  • Lee, Soo-Cheol
    • 한국정보시스템학회:학술대회논문집
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    • 한국정보시스템학회 1996년도 추계학술발표회 발표논문집
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    • pp.217-227
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    • 1996
  • The new field of learning control develops controllers that learn to improve their performance at executing a given task, based on experience performin this specific task. In a previous work[6], the authors presented a theory of indirect learning control based on use of indirect adaptive control concepts employing simultaneous identification ad control. This paper develops improved indirect learning control algorithms, and studies the use of such controllers in decentralized systems. The original motivation of the learning control field was learning in robots doing repetitive tasks such as on an assembly line. This paper starts with decentralized discrete time systems, and progresses to the robot application, modeling the robot as a time varying linear system in the neighborhood of the nominal trajectory, and using the usual robot controllers that are decentralized, treating each link as if it is independent of any coupling with other links. The basic result of the paper is to show that stability of the indirect learning controllers for all subsystems when the coupling between subsystems is turned off, assures convergence to zero tracking error of the decentralized indirect learning control of the coupled system, provided that the sample time in the digital learning controller is sufficiently short.

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수직다물체시스템의 간접적응형 분산학습제어에 관한 연구 (A Study on Indirect Adaptive Decentralized Learning Control of the Vertical Multiple Dynamic System)

  • 이수철;박석순;이재원
    • 한국정밀공학회지
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    • 제22권4호
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    • pp.92-98
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    • 2005
  • The learning control develops controllers that learn to improve their performance at executing a given task, based on experience performing this specific task. In a previous work, the authors presented an iterative precision of linear decentralized learning control based on p-integrated learning method for the vertical dynamic multiple systems. This paper develops an indirect decentralized teaming control based on adaptive control method. The original motivation of the teaming control field was loaming in robots doing repetitive tasks such as on an assembly line. This paper starts with decentralized discrete time systems, and progresses to the robot application, modeling the robot as a time varying linear system in the neighborhood of the nominal trajectory, and using the usual robot controllers that are decentralized, treating each link as if it is independent of any coupling with other links. Some techniques will show up in the numerical simulation for vertical dynamic robot. The methods of learning system are shown up for the iterative precision of each link.

계획설계 BIM 템플릿의 구성 및 활용에 관한 연구 (A Study on the configuration and utilization of the schematic design BIM Template)

  • 김명근;고인룡;민영기;정태승
    • 한국디지털건축인테리어학회논문집
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    • 제13권3호
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    • pp.51-58
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    • 2013
  • The projects are becoming more complicated and amplified as the design and development technology is advancing. Thus, existing architectural processes and methods are revealing limitations. The technology of BIM is an IT applied to construction, that provides the state-of-the-art tools to overcome these limitations to improve on architectural designing, technology, cost, etc. Therefore, it it necessary to converge the advises and collaboration from the various experts at the initial step in a common processing platform. In this research project with Korean Education Development Institute, configuration and utilization of EDU BIM template is studied because setting an anchor point from the initial phase is necessary for such processes at the perspective of the operator. The purpose of this study is to prevent time consumptions at the initial phase of BIM foundation, to ensure accurate information inputs within the repetitive tasks, and for effective information management that will produce consistent results through utilization of BIM technology.

시설참외 재배작업의 근골격계 위험도 및 자각증상 호소율 (Risk Assessment and Symptoms of Musculoskeletal Disorders in Melon Farm Workers)

  • 김경수;김경란;김효철;이경숙
    • 한국산업보건학회지
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    • 제16권4호
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    • pp.385-397
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    • 2006
  • A high prevalence of farmer's work-related musculoskeletal disorders(MSDs) have been reported in precedent studies. To offer the basic data for reducing the melon farmer's MSDs, a questionnaire survey about MSDs symptoms and work loaded body part and video analysis by 3 checklist(REBA, RULA, OWAS) for musculoskeletal risk assessment were carried. 94 melon farmers for this questionnaire and 1 typical farm for risk assessment were participated. A total of 80.9% of the farmers reported musculoskeletal symptoms and 60.6% reported musculoskeletal symptoms over NIOSH standard. The mainly symptom body part is low back, knee and shoulders. Main risk factors in melon farm are awkward postures, heavey/frequent lifting and repetitive hand/arm motions. The high risk tasks induced by video analysis were harvesting, removing the sprouts and covering with rags. These result can be used practically for planning intervention strategy and programs to prevent farmer's MSDs.

병원 영양과의 재무관리 시스템 전산화 모델에 관한 연구 (Development of a Computer-assisted Cost Accounting System Prototype for Hospital Dietetics)

  • 최성경
    • Journal of Nutrition and Health
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    • 제20권6호
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    • pp.442-455
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    • 1987
  • The purpose of the study were to assist foodservice managers in complex decision making by utilizing computerized cost accounting system and to relieve managers from repetitive and routine tasks so that more adequate patient care and consultation can be provided. The scope of the computer-assisted cost accounting system consists of budget, menu planning, purchasing, inventory, cost control and financial reporting. The content of the computerized system are summarized as follows ; 1) For budgeting monthly income was estimated by calculating unit cost of each meal and forecasting serving numbers. The actual serving numbers for patients and employees were totaled everyday, and utilized as the basic data base for estimating income and planning menu. The monthly lists of meal sensus were generated. 2) for menu planning concersion factors were computed based on the standarized recipe for 50 servings. Daily menus for patients and employees which include total amounts of each ingredient and cost analyzed information were generated. 3) Daily and monthly purchasing report for each food item classified by patient and employee meals were generated. 4) Inventory transactions such as recipts and issues were totalized daily for each stocked item, and monthly inventory reports were generated. 5) Cost analysis reports for each menu item were generated into two ways based on the budget coat as well as the purchasing cost. 6) Editing new recipes and updating food costs change to the data base were carried out. 7) Financial reports were generated monthly, first-half and second-half of the year, and yearly basis.

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Factors Affecting the Job Performance of Clinical Laboratory Scientists

  • 심문정
    • 대한임상검사과학회지
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    • 제41권3호
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    • pp.140-144
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    • 2009
  • Clinical laboratory testing plays a crucial role in the detection, diagnosis, and treatment of disease. Clinical laboratory scientists evaluate test results, develop and modify procedures, and establish and monitor programs, to ensure the accuracy of tests. It is clear that over the past decade the role of the clinical laboratory scientists has expanded and this process will be continued into the future. The purpose of this study is to clarify the factors influencing the job performance of clinical laboratory scientists and aim to provide the role and duties of clinical laboratory scientists. To examine the frequency of work context and the importance of task, the surveys were conducted on 168 clinical laboratory scientists. The questionnaire items were used 10 score by Likert scale. According to the results of this study, the important factor affecting the job performance was "Analyze laboratory findings to check the accuracy of the results", and the next factors were "Establish and monitor quality assurance programs", "Enter data from analyzer into computer", "Calibrate and maintain equipment". And the factors of "repeating same tasks" and "spend time making repetitive motions" were answered the highest. This study will provide strategies for improving work environment, developing education curriculum and method, and role of clinical laboratory scientists. We must continually upgrade our knowledge, and identify the new trends in technology and science and accept changes.

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복합시스템을 위한 간접분산학습제어 (Indirect Decentralized Learning Control for the Multiple Systems)

  • Lee, Soo-Cheol
    • 한국산업정보학회:학술대회논문집
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    • 한국산업정보학회 1996년도 추계 학술 발표회 발표논문집
    • /
    • pp.217-227
    • /
    • 1996
  • The new filed of learning control develops controllers that learn to improve their performance at executing a given task , based on experience performing this specific task. In a previous work[6], authors presented a theory of indirect learning control based on use of indirect adaptive control concepts employing simultaneous identification and control. This paper develops improved indirect learning control algorithms, and studies the use of such controller indecentralized systems. The original motivation of the learning control field was learning in robots doing repetitive tasks such as on an asssembly line. This paper starts with decentralized discrete time systems. and progresses to the robot application, modeling the robot as a time varying linear system in the neighborhood of the nominal trajectory, and using the usual robot controllers that are decentralized, treating each link as if it is independent of any coupling with other links. The resultof the paper is to show that stability of the indirect learning controllers for all subsystems when the coupling between subsystems is turned off, assures convergence to zero tracking error of the decentralized indirect learning control of the coupled system, provided that the sample tie in the digital learning controller is sufficiently short.

교량용 거더 원격 정밀거치 시스템 개념 설계 (Conceptual Design of Remote Precise Installation System for Bridge Girders)

  • 이상윤;박영수;이상원;정태일;송재준
    • 로봇학회논문지
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    • 제16권3호
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    • pp.199-206
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    • 2021
  • The robot is an effective means to perform repetitive tasks quickly and accurately. It could be more effective in dangerous environments where human is difficult to access. The construction site is a dangerous environment with a high possibility of industrial accidents where heavy work is frequently carried out at a high place. In particular, an accident in the construction site is highly likely to lead to a severe disaster. Of course, various technologies are being developed to monitor the safety of workers in construction sites and prevent accidents, but there is a limit to eliminate the risk of accidents. Therefore, it is necessary to make efforts to replace workers exposed to dangerous environments with equipment or robots that could be controlled remotely in a more active way. In this study, Remote Precise Installation System was proposed to replace the workers exposed to the risk of accident at a high place during the bridge construction. Also, the conceptual design and analytical reviews of this system were carried out. Suppose Remote Precise Installation System is developed according to the derived concept and the target performance. In that case, this system is expected to be applied as a technology that can effectively replace the workers at the bridge construction site.

변화를 위한 도전, 법무부 기록관의 건립 (Challenge for a Change: the Establishment of the Ministry of Justice Record Center)

  • 임진수
    • 한국기록관리학회지
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    • 제19권2호
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    • pp.243-249
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    • 2019
  • 본고는 2015년부터 현재까지 법무부에서 추진한 기록관 건립과 관련된 제반사항에 대한 추진 경과 및 남은 과제를 소개하는 글이다. 기록관 건립을 위해서는 내부적 합의 도출, 관계기관과의 협의, 기록관 조직 구성 및 운영체계 확립 등 내 외부의 다각적인 분야에서 상호 유기적인 협의와 검토 및 반영과정이 장기적이면서도 반복적으로 이루어지게 되는데, 이 글에서는 각 분야별 추진사항과 결과를 중심으로 요약 정리하였다. 새로운 변화와 발전을 도모하고자 하는 법무부의 기록관 건립 사례가 향후 기록관 건립을 모색하는 기관들로 하여금 유용하고도 유익한 사례가 되길 기원한다.

현장실습 중 간호사와의 관계에서 간호대학생이 경험한 무례함 (Incivility experienced by nursing students in relations with nurses during clinical practice)

  • 황윤영;주민선
    • 한국간호교육학회지
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    • 제27권1호
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    • pp.29-38
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    • 2021
  • Purpose: The purpose of this study was to describe the meaning of incivility experienced by nursing students in relations with nurses during clinical practice. Methods: This is a descriptive qualitative study that included thirty participants using convenience sampling in universities in S, J, Ch, and C provinces. Data saturation was achieved and methodological rigor was established. Qualitative content analysis was used to inductively determine categories. Results: The four categories derived from analysis were 'left alone at clinical field', 'treated as an assistant', 'not respected as a person' and 'ignored future dreams'. Conclusions: Nursing students continue to carry out repetitive, low-risk tasks, for which they are not properly trained due to the lack of practical guidance in clinical practice. During clinical practice, they are not respected as persons by nurses and are negatively influenced by nurse professionals. A solution to this requires organic cooperation and policy preparation at universities and hospital sites to improve practical training of nursing students.