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배상현,손영수,한종길 조선대학교 전자정보통신연구소 2001 電子情報通信硏究所論文誌 Vol.4 No.2
A sliding sector is defined as a subset the state space, inside which some norm of state decreases with zero control input. The variable structure controller with sliding sector is designed to transfer the system state from the outside to the inside of the sliding sector in a finite time and enable the system state stay inside the sliding sector, and the resulted VS control system is quadratically stable. The simulation results are its effectiveness.
多地域 負荷周波數 制御에 依한 動的負荷狀態 推定機構의 效果
裵相賢,丁采榮,李雄基,金蘭 조선대학교 기초과학연구소 1989 自然科學硏究 Vol.12 No.1
This paper presents a method to design pseudo decentralized load frequency control(LFC) based on digital controllers which improves dynamic responses in multi-area power systems by incorporating computational time delay. Assuming that the amplitude of the load fluctuation is small and invariant, behavior of the power system in expressed by a set of linear differential equation, with constant coefficients. First, in order to synthesize a sampled date controller, the system is digitalized at appropriate sampling period by using numerical approximation method. Next, the centralized control gains incorporating time delay are determined based on the optimal theory. In order to damp a constant disturbance, we make use to digital servo system having one controller delay. From the point of view of application to LFC problem, the area control error (ACE) is chosen as output variables of servo system.
지식베이스를 이용한 증권투자에 관한 퍼지 전문가 시스템
배상현 조선대학교 동력자원연구소 1992 動力資源硏究所誌 Vol.14 No.2
This paper presents the technique for making comprehensive evaluation of the effect of the introduction of the Fuzzy Expert Systems into the existing Knowledge Base of a test area to be studied on the Investment. In the proposed method, available system was operated from condition (Rule) and tool in the user interface, Fuzzy Knowledge Base, Database and then the effect on the configuration of the Fuzzy Expert System load was obtained. Overall evaluation with the inclusion of the utilization of the Fuzzy Expert System has been attempted.
배상현,손영수 조선대학교 기초과학연구소 1993 自然科學硏究 Vol.16 No.1
The Expert system is a field of the artificial intellegence which enables the problem of a special territory to be solve by using model imitating an expert, that is, The Expert system is the computer system which infers a problem by using the knowledge base made up by means of inputting the knowledge of an expert. This paper designs the process of inference using forward chaining method, which to Pick up the knowledge data from knowledge base of stock analysis system.
지역주택조합 조합원 자격과 분담금 납입 의무에 관하여 - 대법원 2025. 2. 13. 선고 2024다249040 판결을 중심으로 -
배상현 민사법의 이론과 실무학회 2025 민사법의 이론과 실무 Vol.28 No.2
최근 대법원은 지역주택조합 조합원 자격과 분담금 납입의무에 관하여 “대법원 2025. 1. 9. 선고 2023다209403 판결”(이하 “A판결”이라 한다)과 “대법원 2025. 2. 13. 선고 2024다249040 판결”(이하 “B판결”이라 한다)을 선고하였다. A판결은 ‘무자격자가 조합가입계약을 체결한 후 주택조합설립인가 신청일까지 조합원 자격 요건을 충족하지 못하여 조합원 지위를 취득하지 못한 경우 주택조합설립인가 신청일 이후 이행기가 도래하는 분담금에 대하여는 납부의무가 없다’고 판단하였다. B판결은 ‘조합설립인가 신청일 이후 무자격자가 지역주택조합과 체결한 조합가입계약은 원시적 불능이 아니다’라고 하며 무자격자인 원고의 부당이득반환청구를 인용한 원심을 파기하였다. A판결과 B판결을 비교하면 얼핏 두 판결은 충돌하는 것으로 보인다. 왜냐하면 B판결의 원고는 무자격자이므로 A판결에 의하면 피고 지역주택조합에 분담금 납부의무가 없으므로 원고의 부당이득반환청구가 인용되어야 할 것으로 보이기 때문이다. 그럼에도 B판결은 원심을 파기하였다. 본고는 B판결이 법률상 타당한지를 살펴보기 위하여 지역주택조합의 일반론, 종전 하급심 판례의 입장, 강행규정, 단속규정, 원시적불능 등에 관하여 검토하였다. A판결에 따라 B판결의 원고는 분담금 납무 의무가 없다고 할 것이나 무자격자 원고와 피고 지역주택조합이 체결한 조합가입계약은 유효할 것이므로 원고의 분담금 반환 청구는 피고의 조합규약과 조합가입계약에 따라 이루어져야 한다. 이에 원심을 파기한 B판결은 타당하다고 할 것이고 A판결과 모순되지 아니한다. Recently, the Supreme Court of Korea rendered two significant rulings concerning the eligibility for membership in local housing cooperatives and the obligation to pay contributions: Decision 2023Da209403 (rendered on January 9, 2025, hereinafter referred to as “Decision A”) and Decision 2024Da249040 (rendered on February 13, 2025, hereinafter referred to as “Decision B”). In Decision A, the Court held that if a person who is ineligible for membership enters into a cooperative membership agreement but fails to meet the eligibility requirements by the date of the application for cooperative establishment approval, such person does not acquire the status of a member and is not obligated to pay contributions that become due after the application date. In contrast, Decision B held that a cooperative membership agreement entered into between an ineligible person and a local housing cooperative after the application date is not void from the outset (i.e., not a case of original impossibility). Accordingly, the Court overturned the lower court’s decision that had upheld the plaintiff’s claim for restitution of unjust enrichment. At first glance, Decisions A and B may appear contradictory. This is because, under the reasoning of Decision A, the plaintiff in Decision B, being ineligible for membership, would not be obligated to pay contributions, and thus the plaintiff’s claim for restitution should have been upheld. Nevertheless, the Supreme Court in Decision B overturned the lower court’s ruling. This article examines whether the holding in Decision B is legally sound, through a discussion of general principles regarding local housing cooperatives, prior lower court decisions, mandatory and regulatory provisions, and the legal concept of original impossibility. While the plaintiff in Decision B may have no obligation to pay contributions pursuant to Decision A, the cooperative membership agreement between the ineligible plaintiff and the defendant cooperative is nonetheless valid. Therefore, the plaintiff’s claim for a refund of contributions must be assessed based on the cooperative’s articles of association and the terms of the membership agreement. Consequently, the Supreme Court’s reversal of the lower court’s decision in Decision B is reasonable and does not conflict with Decision A.