UPFC GTO Thyristor VTE(Valve Test Equipment) 개발

金守烈(Soo-Yeol Kim),張秉勳(Byung-Hoon Chang),尹鍾秀(Jong-Soo Yoon),金容鶴(Yong-Hak Kim),白斗鉉(Doo-Hyun Baek) 전력전자학회 2008 전력전자학회 논문지 Vol.13 No.5

PID 제어기에서 미분 동작으로 인한 피드백 센서 잡음 문제 해결

김수열(Su Yeol Kim),김평수(Pyung Soo Kim) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.11

쿠바 주파수조정 ESS 운영 전략 검토: 주파수 보상 효과 분석

김수열,이성은,김진태,Kim, Soo-Yeol,Lee, Seong-eun,Kim, Jin-tae 한국전력공사 2020 KEPCO Journal on electric power and energy Vol.6 No.2

KEPCO has installed Frequency Regulation ESS (FR ESS) of 376 MW since 2015. Frequency Regulation is ancillary service to support stabilizing system frequency, which is divided into governor free and automatic generation control. KEPCO operates FR ESS as governor free application and leads FR ESS market with capability of diverse demonstration and operation experiences. To expand FR ESS role during transient states of power system, KEPCO has extended operating time of charging and discharging. KEPCO has also changed speed droop lower than before to improve contribution on frequency compensation, and acquired much experiences of differentiating bad cells from others. Based on these technologies and know-hows, KEPCO Research Institutes received request of feasibility study and technical cooperation for overseas FR ESS business. This paper suggests the simple and practical method for making technological feasibility study of FR ESS.

중학교 <생활국어> 배움책 "낱말" 단원 만들기

김수열 ( Soo Yeol Kim ) 한국문법교육학회 2007 문법 교육 Vol.7 No.-

이 글은 7차 교육과정의 배움책(=교과서) 중 `낱말과 형태소`(중1-2,2단원)와 `품사의 종류`(중3-2,5단원)를 살피고, 배가 (=학생)들이 지식이나 개념을 `정답`으로 외기보다 스스로 탐구하도록 이끌어야 한다는 관점에서 다음 몇 가지 서술에 잘못이 있음을 밝혔다. 첫째, `문장을 낱말로 나누어 보자`로 쓴 것은 잘못이다. `월`(문장)에서 `달도막(어절)`, 그리고 `낱말` 및 `형태소`로 이르는 과정은 하나의 사물을 "쪼갬`이지, 여러 부분으로 묶어 가르는 `나눔`이 아니기 때문이다. 둘째, `아침에 바람이 불었다`에서 ①홀로 쓰일 수 있는 낱말(아침, 바람)과 ②홀로 쓰일 수 없는 낱말(에, 이) ③홀로 쓰일 수 없는 형태소로 낱말이 될 수 없는 말(불-, -었-, -다)로 나누어 풀이한 것이 `낱말`을 보는 세 흐름 중 `절궁적(=중종합, 중분석) 관점`에 따른 것임을 밝히지 않은 것이 잘못이다. 이 풀이는 `분석적 관점`이나 `종합적 관점`에서 보면 잘못된 것이기 때문이다. 셋째, 낱말(씨,단어)은 뜻(의미)·꽃(형태)·구실(기능)에 따라 나눌 수 있다고 하였는데, 왜 그런 잣대로 낱말을 갈래 짓는지 그 원리를 제대로 밝히지 않는 것은 잘못이다. 이것은 `불변의 표준`을 세울 수는 없지만, 연역법적, 계층적 짜임새에 따른 원리를 제대로 밝힘으로써 `분류 원리`를 바르게 익혀야 탐구의 즐거움을 누리기 때문이다. 따라서 새 배움책에서는 `낱말`을 보는 눈(관점)이나 `뜻넓이`, `갈래` 등에서 나타난 이런 잘못을 채워서 바로잡아 나가야 할 것이다. This paper studies two chapters of "words and morphemes" and "parts of speech" from 「Living Korean language」 textbook for middle school students. This paper shows that there are some wrong points in the chapters. From the viewpoint that the textbook should lead students to study a new concepts and knowledge for themselves, this paper makes clear three kinds of arguments in the following. First, I argue that the sentence "Let`s analyze a sentence into words" is wrong, because the process of dividing a sentence into phrases, words and morphemes is not suitable for the concept of classification, but for the concept of analysis, which leads one thing to smaller parts. Second, this paper contends that the viewpoint of word concept be made clear. For example, the explanation of dividing the sentence "아침에 바람이 불었다.(The wind blew in the morning)" into three kinds of category is based on the viewpoints of Negotiate Theory(or Semi-analytic Theory). Three kinds of category are: 1) free morphemes such as `아침(morning)`, `바람(wind)` 2) bound morphemes attached nouns such as `에`(e), `이`(i), and 3) bound morphemes attached verbs such as `불`, `었`, `다`. Though the above-mentioned explanation based on Negotiate Theory (or Semi-analytic Theory) seems right, another explanation is possible when Analysis Theory or Synthesis Theory is adopted. Therefore which viewpoint the textbook is based on is made clear. Third, it is said that the criteria of classifying words are meaning, form, and function. This paper argues that the criteria should be presented clearly in the textbook, because the criteria should lead students to fully understand that the rule of classifying words is based on the deductive or hierarchical construction.

이동 윈도우 상태추정 필터의 다양한 표현과 특성 비교

김수열(Su Yeol Kim),김평수(Pyung Soo Kim) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.11

인터넷 보안 향상을 위한 프록시 기반 표준 기술

김수열(Soo Yeol Kim),김평수(Pyung Soo Kim) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2

본 논문에서는 인터넷 보안 향상을 위해 Oblivious 개념을 적용하는 프록시 기반의 IETF(Internet Engineering Task Force)에서 표준 기술인 Oblivious DoH, Oblivious HTTP, MASQUE 기술에 대해 분석하고 비교한다.

직류 전동기 시스템의 모델 파라미터 추정

김수열(Su Yeol Kim),김평수(Pyung Soo Kim) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.6

스포츠 전시컨벤션의 참가유형에 따른 개최지 선호도와 만족도의 차이 -스쿠버다이빙 전시컨벤션을 중심으로-

김수열 ( Soo Yeol Kim ),허정옥 ( Jeong Ok Hur ) (사)한국마이스관광학회(구 한국컨벤션학회) 2012 MICE관광연구 Vol.12 No.3

This study aims to identify the types of participants and visitors and the differences in their selection attributes, by studying the venue preferences of the SCUBA diving exhibition participants and visitors to the SPOEX(International Sports & Leisure Industry Show), which is a domestic sports exhibition convention, based on their participation characteristic to such sports exhibition convention. Borrowing from the previous studies, this study drew result from the hypothesis on venue preference based on the participation motivation of the participant and their selection attribute. The first hypothesis was on the type of participant: “The venue preference, satisfaction level and loyalty will differ according to the type of convention participant”. The analysis on this hypothesis showed that while there was no significant difference in venue preference, there was meaningful difference in the satisfaction level and loyalty. The second hypothesis was on the motivation for participation: “The venue preference, satisfaction level and loyalty will differ according to the motivation of the participant”. For this hypothesis, all three showed valid difference so all three were adopted. The third hypothesis was on the preference for the venue: “The satisfaction level and loyalty will differ according to the convention participant`s preference for the venue. “The analysis on this hypothesis showed that there is no significant difference in terms of facility satisfaction and human service, so the hypothesis on the satisfaction level was partially adopted. Meanwhile, the hypothesis on loyalty showed meaningful difference so it was wholly adopted. The fourth hypothesis was on the satisfaction level and loyalty: “If the satisfaction level of the convention participant increases, the loyalty to the convention will also increase”. Based on the analysis, the satisfaction level for program, surrounding environment and leisure experience showed no meaningful difference, so this hypothesis was also only partially adopted.

공동주택 PF ABCP의 문제점 분석 및 개선방안에 관한 연구

김수열,황욱선,김용수,Kim, Soo-Yeol,Hwang, Uk-Sun,Kim, Yong-Su 한국건설관리학회 2011 한국건설관리학회 논문집 Vol.12 No.2

본 연구는 공동주택 개발 프로젝트 파이낸싱 참여기관 및 PF ABCP의 구조적 문제점 분석을 목적으로 수행되었다. 이를 위해 공동주택 개발 사업으로 PF ABCP 발행된 4곳을 사례 대상으로 선정되었다. 이에 따라 공동주택 참여기관으로 시행 사, 시공사, 금융기관 그리고 PF ABCP의 개선방안을 제시하였다. 상기와 같은 목적과 방법에 따라 진행된 본 연구의 결론 은 요약하면 다음과 같다. 1) 장기운영펀드 등 중 장기 프로젝트 파이낸싱과 ABS의 여신심사 강화와 ABCP의 발행절차의 간편함이 결합된 금융상품 개발이 되어야 한다. 2) 시공사는 경영적 부담이 없는 단순도급 시공에 집중하고, 금융기관은 본질적 프로젝트 파이낸싱 요건인 사업성에 의존한 검증으로 자금 대출하여 사업부실화 방지, 시행이익의 보존이 가능하게 되어야 한다. 또한, 사업부지 환가가치평가를 통한 부분보증제 도입, 금융기관의 지분투자 형식의 발행, 유동화참여기관들은 회사별로 내부통제 시스템 강화, 이해상충 방지 및 불공정거래 행위 규제 등을 위한 제도를 강화해야 한다. The purpose of this study is to analyze the problems of the parties involved in the issuance of apartment housing development projects. The adapted research method selected four apartment housing development as PF ABCP projects. This study carried out the case about participant institution of PF ABCP funding project including developer, constructor, financial institution so as to draw problems by participant institution. On the basis of the selected case, this thesis proposes methods for involved parties to negotiate and work out problems of the PF ABCP. The results of this study are as follows 1) Launching long-term project financing should be developed, including operating funds and strengthen the ABS and ABCP issuance of credit assessment procedures, combined with the simplicity of the instruments. 2) The Low-risk contract for the construction of simple managerial focus should be the construction, financial institutions essentially dependent on project financing feasibility verification purpose loans to prevent the division a true story, the development should be of interest to be preserved. The proposed included, among other, partial guarantee based on the construction plan financial institutions' share-based investment, and the supplement of legal issues.

외란 및 잡음 제거 기능을 갖는 DC 모터 속도제어 시스템

김수열(Soo Yeol Kim),김평수(Pyung Soo Kim) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.6