• 제목/요약/키워드: Improving System

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고화매트의 내구성 향상을 위한 시스템 개선의 실험적 연구 (An Experimental Study on Solidifying Mat of System Improving for Durability Improving)

  • 홍성록;이정윤;김영삼;박헌일;조병영
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2014년도 춘계 학술논문 발표대회
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    • pp.108-109
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    • 2014
  • The purpose of this study is to enhance durability of solidifying mat. solidifying mat excellent mechanical properties of geotextile. multi-layer coating system is applied to the mat and the chloride ions penetration resistance, chemical resistance, accelerated carbonation test were evaluated by testing the durability. Durability test results are as follows. chloride ions penetration resistance results are coated mat is approximately 70 % lower than plain. chemical resistance test results are coated mat no discoloration. accelerated carbonation test results are coated mat is approximately 90 % lower than the plain.

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제도적 측면에서 살펴본 도시농업의 현황과 과제 (The Current Status of the Korean Urban Farming Researched from an Institutional Perspective and Tasks for the Future)

  • 박진욱;안계복
    • 농촌계획
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    • 제19권3호
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    • pp.61-73
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    • 2013
  • This study presents the methods to improve the urban farming in Korea by analysing the current circumstances of urban farming in Korea. Specifically, the legal system in association with urban farming, current status of the act on the urban farming, the present situation of the Korean urban farming, and the comprehensive plans for urban farming have been analysed in order to grasp the present situations and seek for solutions. Based on these, the research provides effective supporting methods for sustainable urban farming in Korea. As a result, the essentials to improved urban farming can be summarized with two factors; securing more space for urban farming and improving the supporting system for the urban farmers. Enthusiastic attitudes of local governments, security of budget, and cooperation with the citizens are vital to expand the urban farming in addition to the institutional and systematic urban farming improving methods mentioned above.

노후 공동주택의 재생시스템 구축을 위한 연구 - 단위평면 조사를 중심으로 - (A Study on the Re-modeling System of the Deteriorated Apartments Housings)

  • 서붕교
    • 한국실내디자인학회논문집
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    • 제23호
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    • pp.92-99
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    • 2000
  • From 1960 year, in Korea, for solving the cityward drifting of problem, A lot of apartment housings were intentionally constructed in the process of industrialization. After 30 years, for solving the stock problem of the deteriorated apartment housing, it has mostly been reconstructed, till now. In this paper, because we try to improve upon the method of the problem which is used n reconstruction, we propose $\ulcorner$Re-using system$\lrcorner$ of a deteriorated apartment housing. This includes all improving spheres of deterioration of faculty and sociality, which are all factors of discomfort and improving method after residents'living, individually and collectively. Accordingly, the object of this paper consequently propose the application of the methods of $\ulcorner$Re-modeling system$\lrcorner$ to all stocks of deteriorated apartment housings.

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고압전동기 Off-Line 절연진단시험 효율개선을 위한 데이터자동취득 및 원격진단시스템 구축 (Development of Automatic Data Acquisition & Remote Diagnostic System for Improving Efficiency of High-Voltage Motors Off-Line Insulation Diagnostic Test)

  • 강상무;강대정;한현석;김원경
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2015년도 제46회 하계학술대회
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    • pp.707-708
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    • 2015
  • This paper proposes a method for improving efficiency of high-voltage motors off-line insulation diagnostic test. The conventional manual test method has measurement errors and excessive processing time. We developed the KITAS system and solved these problems by using the instrument remote control and communication technology. The result of proficiency testing by interlaboratory comparisons using Power Factor Tip-Up test was '${\mid}E_n{\mid}$ < 1'. It was possible to confirm the validity of acquired data from the KITAS and establish a remote diagnostic system for easy access without physical limitations.

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전동차의 점착특성 향상에 관한 연구 (A study of adhesion characteristics progress for electric car)

  • 김길동;한영재;박현준;이사영
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 B
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    • pp.1436-1438
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    • 2000
  • It is one of the most effective methods for improving the performance of electric railway vehicles to make better the wheel-rail adhesion characteristics. To study adhesion characteristic is to develop the equivalent reduction machine to experiment on the adhesion system. The experiment system makes it possible to change the wheel-rail adhesion force with various adhesion parameters, and therewith to test the adhesion control system with the reduction machine in a laboratory. In this paper, for improving adhesion performance shows actually control methods.

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최적화용 신경망의 성능개선을 위한 새로운 최적화 기법 (A new optimization method for improving the performance of neural networks for optimization)

  • 조영현
    • 전자공학회논문지C
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    • 제34C권12호
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    • pp.61-69
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    • 1997
  • This paper proposes a new method for improving the performances of the neural network for optimization using a hyubrid of gradient descent method and dynamic tunneling system. The update rule of gradient descent method, which has the fast convergence characteristic, is applied for high-speed optimization. The update rule of dynamic tunneling system, which is the deterministic method with a tunneling phenomenon, is applied for global optimization. Having converged to the for escaping the local minima by applying the dynamic tunneling system. The proposed method has been applied to the travelling salesman problems and the optimal task partition problems to evaluate to that of hopfield model using the update rule of gradient descent method.

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전동차 점착특성 추정에 관한 연구 (A Study on Deducting Adhesion Characteristic of Urban Train)

  • 김길동;이한민;오세찬;이장무;박성혁
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2006년도 추계학술대회 논문집
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    • pp.659-664
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    • 2006
  • It is one of the most effective method for improving the performance of electric railway vehicles to make better the wheel-rail adhesion characteristics. To study adhesion characteristic is to develop the equivalent reduction machine to experiment on the adhesion system. The experiment system makes it possible to change the wheel-rail adhesion force with various adhesion parameters, and therewith to test the adhesion control system with the reduction machine in a laboratory. In this paper for improving adhesion performance show actually control methods.

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도시철도차량의 성능 향상을 위한 점착특성 기법에 관한 연구 (A Study on the adhesion characteristic technique for improvement performance of urban rolling stock)

  • 김영춘;전지용
    • 한국산학기술학회논문지
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    • 제7권2호
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    • pp.150-156
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    • 2006
  • 전기철도차량의 성능특성을 향상시키기 위한 효과적인 방법중의 하나는 바퀴와 레일사이의 점착성능을 향상시키는 것이다. 점착특성을 연구하기 위해서 실제 차량을 등가 모델링한 점착시스템을 제작하였다. 이 시스템은 다양한 점착 파라미터를 변화시켜 바퀴와 레일사이의 점착력을 바꿀 수 있도록 제작되었다. 이 논문은 공전속도를 제어하는 기능을 추가하여 점착성능을 향상시키는 연구이다.

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단일개발환경을 위한 제어용 실시간 운영체제의 개발 (Development Of Controller Area Operating System For Uniform Developing Environment)

  • 박세진
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1996년도 추계학술대회 논문집 학회본부
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    • pp.71-74
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    • 1996
  • The concept of uniformity in control implementation is exploded for improving efficiency of design procedure. A controller area operating system which includes real time kernel and control specific shell are developed. Three examples are discussed for the validation of tile system.

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효율적인 OLED FAB 경유 반송 개선 알고리즘 (An Efficient Algorithm for Improving Detour in OLED FAB)

  • 김동소;최진영
    • 산업경영시스템학회지
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    • 제41권3호
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    • pp.120-128
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    • 2018
  • OLED Display fabrication system is one of the most complicated discrete processing systems in the world. As the glass size grows from $550{\times}650mm$ to $1,500{\times}1,850mm$ in recent years, the efficiency of Automated Material Handling System (AMHS) has become very important and OLED glass manufacturers are trying to improve the overall efficiency of AMHS. Aiming to meet the demand for high efficiency of transportation, various kind of approaches have been applied for improving dispatching rules and facility layout, while simultaneously considering the system parameters such as glass cassettes due date, waiting time, and stocker buffer status. However, these works did not suggest the operational policy and conditions of distribution systems, especially for handling unnecessary material flows such as detour. Based on this motivation, in this paper, we proposed an efficient algorithm for improving detour transportation in OLED FAB. Specifically, we considered an OLED FAB simplifying OLED production environment in a Korean company, where four stockers are constructed for the delivery of Lot in a bay and linked to processing equipments. We developed a simulation model using Automod and performed a numerical experiment using real operational data to test the performance of three operation policies under considerations. We showed that a competitive policy for assigning alternative stocker in case of detour was superior to the current dedicated policy using a specified stocker and other considered policies.