• 제목/요약/키워드: Operation Rules

검색결과 597건 처리시간 0.026초

방류량 및 하류부유황을 고려한 팔당댐의 수문조작기준 선정 (Gate Operation Rule of Paldang Dam by Considering Discharge and Downstream Flow Pattern)

  • 서규우;이종설
    • 물과 미래
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    • 제29권2호
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    • pp.209-219
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    • 1996
  • 1973년 팔당 수력발전소 준공 이래로 사용하여 온 수문조작기준은, 1985년 충주 다목적댐 건설에 따른 한강홍수예경보 프로그램 개선에 따라 일부 수정을 거쳐 사용하고 있다. 그 동안 한강 종합개발 사업의 하도정비사업결과로 팔당댐 하류지역의 수면저하가 가시적으로 발생하게 되었다. 이로 인해 댐 건설당시의 낙차에 변화가 생겼고 댐하류부의 수위가 평균 3m 정도 저하되어 잠수 오리피스식 여수로인 팔당댐의 방류량 산정식에 문제점이 발생하면서 수문개방방식별 방류량의 재산정이 불가피해졌다. 본 연구에서는, 이러한 문제점을 해결하고 수문조작기준을 결정하기 위하여 수리모형실험을 통해 세가지 수문조작 방식을 비교, 검토하였다. 댐우안에 위치한 발전소 설비 및 운영에 영향을 미치지 않는 안전범위를 최우선으로 하여 방류량별, 개도형태별로 하류부에서의 유황을 관찰하였으며, 또한 수치모형으로도 하류부유황을 모의하여 검토한 결과, 좌측 수문 5개씩을 순차적으로 개방하는 방식을 가장 적절한 수문조작기준으로 결정하였다.

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효율적 선석운영을 위한 의사결정지원시스템에 관한 연구 (A Study on Decision Support System for the Efficient Quay Management)

  • 김동희;허동은;김봉선;이창호
    • 산업공학
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    • 제11권1호
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    • pp.97-103
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    • 1998
  • In these days many people have studied on the berthing problem. The operation rules differ from port so port and the problem is highly dependent on the environment of port. The purpose of this study is to develop a decision support system decision makers of the berthing problem for Inchon Port. The system is developed with graphic user interface(GUI) using user-interactive approach and some general and specific rules for Inchon Prot are considered. The system is composed of the following four parts ; the input/output part, the automatic berthing part by the system using rules, the manual berthing part by user, and the part for modifying results or handling exceptional events. The system is designed to assign ship to berths by matching the characteristics with environmental and operational constraints of Inchon Port. We expect that this system can provide decision makers with an efficient and fast way to berthing and can reduce wastes of time, space, and manpower in port operations.

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신용장거래하(信用狀去來下)의 상환(償還)에 관한 법리(法理) 및 통일규칙(統一規則)에 관한 연구(硏究) (A Study on the Legal Principles and ICC Uniform Rules for Reimbursements under Documentary Credits Transactions)

  • 김종태;박석재
    • 무역상무연구
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    • 제13권
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    • pp.563-579
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    • 2000
  • Until July 1, 1996, no international rules, other than the simple practices contained in the UCP 500 have existed for the processing of bank-to-bank reimbursements. At last, ICC Uniform Rules for Bank-to-Bank Reimbursements under Documentary Credits(Pub. No. 525) have been published on July 1, 1996. Our country have adopted the URR 525 on August 1996. But in view of the present number of countries adopted the URR 525, I think our country is very impetuous. In order to comprehend the URR 525 correctly, this study is carrying out to clarify the legal principles on reimbursements among issuing banks, nominated banks, unauthorized banks. Secondly, this study is carrying out indicate the background of establishing, the main contents, the approval and the criticism of URR 525. Finally, this study is carrying out to point out the matters that demand special attention about the operation of URR 525

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Assessment of Sinkhole Occurrences Using Fuzzy Reasoning Techniques

  • Deb D.;Choi S.O.
    • 한국암반공학회:학술대회논문집
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    • 한국암반공학회 2004년도 추계학술발표 논문집
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    • pp.171-180
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    • 2004
  • Underground mining causes surface subsidence long after the mining operation had been ceased. Surface subsidence can be in the form of saucer-shaped depression or collapsed chimneys or sinkholes. Sinkhole formations are predominant over shallow-depth room and pillar mines having weak overburden strata. In this study, occurrences of sinkholes due to mining activity are assessed based on local geological conditions and mining parameters using fuzzy reasoning techniques. All input and output parameters are represented with linguistic hedges. Numerous fuzzy rules are developed to relate sinkhole occurrences with input parameters using fuzzy relational matrix. Based on the combined fuzzy rules, possibility of sinkhole occurrences can be ascertained once the geological and mining parameters of any area are known.

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슬라이딩 모드를 이용한 HYBRID PID형 퍼지제어기 (HYBRID PID FLC using sliding Mode)

  • 문준호;조종훈;오광현;김태언;남문현
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1995년도 하계학술대회 논문집 B
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    • pp.992-994
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    • 1995
  • FLC has a good performance for complication system or unknown model by using human linguistic method but many part control design are based on expert knowledge or trial-error method and it is difficult to prove stability and robustness of controller. In this paper we improve this problem by setting fuzzy rules by dividing phase plane of error and rate of error change by switching surface. We can guarantee the stability in nonlinear system, and also in fuzzy PID type controller the complexity of controller design is increased by increasing the number of input variables and defining more range of operation if we want performance of more specific rules, thus we need to fine the method to decrease the number of control rules used in FLC design. In this paper the algorithm is validated by simulation using conventional FLC and proposed method.

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INMARSAT-C 방식의 선박용 위성통신단말기 개발에 관한 연구 (A study on development of Inmarsat-C type satellite communication terminal)

  • 배정철;홍창희
    • 한국항해학회지
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    • 제20권2호
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    • pp.77-84
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    • 1996
  • This is the first report about the development of INMARSAT-C Satellite communication terminal. We analyze the existing Inmarsat-C terminal and examine each rules(IMO rule, domestic rules) about terminal. With that result, we design the basic hardware and software of terminal. This report consists of ; 1) the contents of the overall of operating situation and resources of INMARSAT-C system as like operation of communication system, communication channels and services 2) the contents of the specification of Inmarsat-C terminal hardware and software and the rules of IMO and Type approval 3) the design of basic hardware and reserch of signal modulation/demodulation using Viterbi algorithm 4) the design of software algorithms and functions focused in korean situations.

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Design of type 316L stainless steel 700 ℃ high-temperature piping

  • Hyeong-Yeon Lee;Hyeonil Kim;Jaehyuk Eoh
    • Nuclear Engineering and Technology
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    • 제55권10호
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    • pp.3581-3590
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    • 2023
  • High-temperature design evaluations were conducted on Type 316L stainless steel piping for a 700 ℃ large-capacity thermal energy storage verification test loop (TESET) under construction at KAERI. The hot leg piping with sodium coolant at 700 ℃ connects the main components of the loop heater, hot storage tank, and air-to-sodium heat exchanger. Currently, the design rules of ASME B31.1 and RCC-MRx provide design procedures for high-temperature piping in the creep range for Type 316L stainless steel. However, the design material properties around 700 ℃ are not available in those rules. Therefore, a number of material tests, including creep tests at various temperatures, were conducted to determine the insufficient material properties and relevant design coefficients so that high-temperature design on the 700 ℃ piping may be possible. It was shown that Type 316L stainless steel can be used in a 700 ℃ high-temperature piping system of Generation IV reactor systems or a renewable energy systems, such as thermal energy storage systems, for a limited operation time.

개성공단에서의 남북상사중재위원회 구성.운영에 관한 연구 (A Study on the Organization and Operation of the Inter-Korean Commercial Arbitration Committee in Gaeseong Complex)

  • 김광수
    • 한국중재학회지:중재연구
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    • 제24권2호
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    • pp.3-31
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    • 2014
  • As all aspects of international activity have kept growing in good transaction, transnational investments, joint ventures, and the licensing of intellectual property, it is inevitable for disputes to increase across national frontiers. International disputes can be settled by arbitration and ADR. In the situation presented in the paper, any dispute shall be finalized by arbitration and conciliation in the Gaeseong Industrial Complex. Inter-Korean Commercial Arbitration in the Gaeseong Industrial Complex has become the principal method of resolving disputes in trade, commerce, and investment in accordance with the "Agreement on South-North Commercial Dispute Settlement Procedures," "Agreement on Organization and Operation of Inter-Korean Commercial Arbitration Committee," and the Annexed Agreement on "Organization and Operation of Inter-Korean Commercial Arbitration Committee" (2013). But the follow-up measures of the said agreements have not been fulfilled. Some prerequisite measures of the Inter-Korean commercial arbitration must be satisfied. In order to proceed with arbitration and conciliation in the Gaeseong Industrial Complex, we need to ask the following: Does the status of an arbitrational matter? Should an agreement to arbitrate contain a choice of law clause? Should one provide for one arbitrator or three? How should the arbitrators be selected? What is the relation between party-appointed arbitrators and the presiding arbitrator (neutral arbitrator)? Do arbitrators compromise more than the litigation? Can conciliation be combined with arbitration? To execute the enactment of arbitration regulations, the contents of the Arbitration Rules of the Korean Commercial Arbitration Board (South) and the Korea International Trade Arbitration Committee (North), together with the Korean Arbitration Act and External Arbitration Act of North Korea and the UNCITRAL Model Arbitration Law and UNCITRAL l Arbitration Rules are reflected in the Rules. There are many aspects of the Inter-Korean Commercial Arbitration. It is essential to understand key elements; namely, the arbitration agreement, appointment of arbitrator, arbitral proceeding and arbitral award, and enforcement and setting aside of arbitral award. This research deals with five chapters. Chapter 1 provides the introduction. Chapter 2 deals with trade volume between South and North Korea and the kinds of dispute in Gaeseong. Chapter 3 addresses contents and follow-up measures of the agreement on the "South-North Commercial Dispute Settlement Procedures," "Agreement on Organization and Operation of Inter-Korean Commercial Arbitration Committee," and the Annexed Agreement on "Organization and Operation of Inter-Korean Commercial Arbitration Committee" (2013). Chapter 4 features the problems and tasks of the pertinent agreements. Chapter 5 gives the conclusion. Enabling parties to find an amicable solution to the dispute in the Gaeseong Industrial Complex can lead to a useful and appropriate framework either through direct negotiation or by resorting to conciliation or mediation in accordance with pertinent agreements and follow-up measures contained in the agreements.

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분산환경에서 객체지향 능동 규칙 시스템 구현 (Implementation of Object-oriented Active Rule System in Distributed Environment)

  • 고굉욱;유상봉;김기창;차상균
    • 한국정보처리학회논문지
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    • 제6권11호
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    • pp.2875-2888
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    • 1999
  • In this paper we present compiler-based active rule system to efficiently maintain spatial integrity constraints in a heterogeneous, distributed environment. Specially, the prototype active rule system presented has been developed as a component of a whole middleware system called SDBC(Spatile DataBase Connectivity). Due to this reason, our active rule system is provided for heterogeneous ODBMSs in a distributed environment and used to define spatial integrity constraints using the active rules in E-C-A(Event-Condition-Action) type. Using this active rule system, an application programmer can free himself from a heavier burden on the integrity maintenance of application objects. In the compiler-based approach, active rules applicable to events raised by a database program are directly inserted into the program in a function type by the preprocessor, and then they are compiled with the application program source codes. One advantage of this approach is that there is no run-time overhead accompanied by monitoring all the database transitions when preprocessed program is executed. This active rule system also provides facilities to manage changed rules and dynamically interpret those rules at run-tuime.

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구직자 코드확장 규칙을 적용한 레이블 친숙성 연구 (A Study of Label Intimacy Applied by Applicant's Code-Expansion Rule)

  • 양승해;정은희;이병관
    • 한국정보전자통신기술학회논문지
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    • 제3권1호
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    • pp.57-62
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    • 2010
  • 본 논문에서는 취업정보를 원활하게 접할 수 있는 환경을 제공하기 위한 구직 구인 정보를 구축하기 위하여 2가지를 제시하였다. 첫째, 취업사이트를 구축하기 위해 실 사례를 대상으로 데이터베이스 코드 확장 기준, 카테고리화 기준, 그리고 ERD (Entity Relation Diagram)를 설계하였다. 둘째, 친숙성이 강한 레이블 규칙을 위한 소수 레이블링 기준을 정의하였다. 따라서, 데이터베이스를 설계 및 구축하는데 있어 일정한 규칙을 체계적으로 적용함으로써 데이터베이스 구축 운영시 일관성과 효율성을 높이고 응용프로그램 개발 및 운영의 편의를 제공할 수 있으며 제안한 코드 확장 규칙 정의는 국내외 구인 구직 정보제공 기관에 표준화가 가능하다.

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