4분의 1 파장 단락 스터브 방식 서지 어레스터의 잔여 전압 제거에 관한 연구

김연태,원태영,Kim, Yeon-Tae,Won, Tae-Yeong 대한전자공학회 2000 電子工學會論文誌-TC (Telecommunications) Vol.37 No.8

고전압 전류 특성의 낙뢰는 안테나를 통해 지상에 설치된 이동 통신 기지국으로 도입될 수 있으며, 이를 방지하기 위한 장치가 서지 어레스터이다. 본 논문에서는 서지 어레스터의 개념, 종류, 동작 원리, 설계 및 제작 등을 검토하고, 이를 기반으로 현재 국내외에서 이용되고 있는 이동 통신 서비스인 셀룰라, GSM 및 PCS 등과 차세대 이동 통신 서비스인 IMT-2000의 기지국에 적용 가능한 서지 어레스터들을 설계하였다. 초기 설계된 서지 어레스터들은 고주파 3차원 구조 시뮬레이터 상에서 특성 예측을 위한 컴퓨터 모의 실험과 서지 어레스터의 전자기적 특성 개선을 위한 내부 구조 최적화 작업이 수행되었다. 서지 어레스터의 최종 설계도를 기반으로 실제 IMT-2000 기지국용 4분의 1 파장 단락 스터브 방식의 서지 어레스터를 제작하였으며, 전자기적 전송 특성 측정과 낙뢰 전달 테스트를 수행하여 제작된 서지 어레스터의 성능을 측정하였다. 측정 결과, 전압 정재파 비는 1.05 이하, 삽입 손실은 -0.035 dB이하, 상호변조 특성은 -150 dBc 이하의 특성을 얻었으며, 잔여 전압 특성은 7∼ll V 정도의 특성을 보였다. The lightning with high voltage and current can enter the basestations for mobile communication through their antenna. The device which can protect the basestation against the lightning, is surge arrestor. In this paper, the concept, kind, operating mechanism, design and fabrication of surge arrestor were studied. Based on the studied data, variable surge arrestors were designed for the current mobile communication service like a cellular, GSM and PCS and the next generation mobile communication like a IMT-2000. Computer simulation for the prediction of their characteristics and inner structure optimization for the improvement of their electrical characteristics were carried with high frequency 3D structure simulator. Quarter wave short stub surge arrestors for IMT-2000 were fabricated with their final design and then the measurement of electrical characteristics and the lightning test were executed. As a results of measurement, we obtained below 1.05 of VSWR, -0.035 dB of insertion loss, -150 dBc of intermodulation and 7∼ll V of residual voltage.

行政上 個人情報保護

金連泰(Kim Yeon-Tae) 한국법학원 2001 저스티스 Vol.34 No.5

민항기용 유압서보작동기 모드전환밸브 설계 변수 선정

김연태(Yeon-Tae Kim),김상석(Sang-Seok Kim),김대현(Dae-Hyun Kim),김상범(Sang-Beom Kim),박상준(Sang-Joon Park) 항공우주시스템공학회 2018 항공우주시스템공학회 학술대회 발표집 Vol.2018 No.11

경찰책임의 승계

김연태 ( Yeon Tae Kim ) 고려대학교 법학연구원 2008 고려법학 Vol.0 No.51

공용수용의 요건으로서의 공공필요

김연태 ( Yeon Tae Kim ) 고려대학교 법학연구원 2007 고려법학 Vol.0 No.48

국무총리행정심판위원회와 시·도행정 심판위원회의 통합 논의에 관한 고찰

김연태 ( Yeon Tae Kim ) 고려대학교 법학연구원 2009 고려법학 Vol.0 No.52

How we organize administrative appeals agencies depends on legislation policy, considering the tenor of administrative appeals system. To guarantee the fairness of administrative appeals is the most important because through this public faith is ensured and the consequence of administrative appeals is justified. The fairness of administrative appeals not being secured, thereby the consequence of administrative appeals not being trusted, administrative appeals system doesn`t function as preceding instance procedure. Making sure, inter alia, independence of administrative appeals agencies is necessary to guarantee the fairness of administrative appeals. Besides the professionalism of members of administrative appeals commission is the essence in elevating the consequential reasonableness of administrative appeals and the acceptability of parties and further, administrative appeals functioning as effective remedy system. We can appraise that administrative appeals commission under the prime minister is equipped with disinterested quality as independent agency, neutrality and professionalism, compared with administrative appeals commission under the Special Metropolitan City Mayor, Metropolitan City Mayor, Do governor or Jeju Special Autonomous Do governor(hereinafter referred to as the "administrative appeals commission of City/Do"). I think that to unify the one and the other is problematic in relation to interference with autonomous right, diversities of regional circumstances, rapidity in dealing with the cases, inhabitants` accessibility and performance of function to control administration autonomously by administrative appeals. It is desirable to solve the problems of operation, composition, etc in administrative appeals commission of City/Do rather by preserving the current dualistic frame of administrative appeals commission system and seeking the reform measures in operating that of City/Do than by merging it into that under the prime minister.

고려법학 106년의 회고와 전망 ; 행정법학 발전의 회고와 전망 -고려법학에 실린 논문을 중심으로-

김연태 ( Yeon Tae Kim ) 고려대학교 법학연구원 2013 고려법학 Vol.0 No.68

《고려법학》의 전신인 《법학논집》이 간행된 이래 지금까지 《고려법학》 및 《법학논집》, 《법률행정논집》에 실린 행정법학 논문을 개관하여 《고려법학》이 행정법학의 발전에 기여한 의의를 찾고 행정법학의 발전상을 역사화하면서, 동시에 행정법 분야의 미래적 전망을 그려보는 것은 우리나라 법학의 발전에 있어서 고려대학교 법과대학, 그리고 그 학술논집인 《고려법학》이 차지하는 비중에 비추어 볼 때 의미있는 일이라 생각한다. 《고려법학》에서의 행정법학의 역사를 어떻게 시대구분 할 것인지는 다양한 관점에 따라 행해질 수 있을 것인데, 이 글에서는 다음과 같이 나누었다. 제1기는 《법학논집》이 간행되기 시작한 1958년부터 《법률행정논집》으로 발간된 1981년까지의 시기로, 한국 행정법 1세대인 윤세창 교수를 중심으로 한국 행정법이 뿌리를 내리는 시기라고 할 수 있다. 제2기는 《법률행정논집》에서 다시 《법학논집》으로 바뀌어 발간된 1982년부터 《법학논집》 제28집이 발간된 1992년까지의 시기로, 한국 행정법 2세대인 김남진, 이상규 교수가 중심이 되어 한국 행정법의 비약적 발전을 이루었던 시기이다. 제3기는 《법학논집》 제29집이 발간된 1993년부터 제35집이 발간된 1999년까지의 시기로, 한국 행정법학의 성숙기에 해당하는 시기라고 할 수 있다. 제4기는 《법학논집》에서 《고려법학》으로 학술지 이름이 바뀌어 발간되는 2001년 이후의 시기로, 《고려법학》이 변화된 법환경에 대응하고 새로운 법분야의 이론적 토대를 마련하는 데 선도적 역할을 수행하며 우리나라 법학의 발전을 주도적으로 끌고나가는 시기라고 평가될 수 있다. 시대와 사회의 변화에 따라 행정의 기능과 과제가 변화하고 그를 대상으로 하는 행정법학 또한 새로워져야 함은 행정법을 전공으로 하는 우리들의 사명이며 계속 짊어지어야 할 부담이라 할 것이다. 새로운 행정법 분야에 대한 관심과 연구의 활성화를 위하여 《고려법학》이 이루어 온 업적을 앞으로도 계속 계승, 발전시켜 나아가야 할 것이다. 《고려법학》, 그 전신인 《법학논집》 및 《법률행정논집》은 지금까지 우리나라 행정법 이론 및 판례의 변화와 발전에 주도적이며 선구자적 역할을 하였다고 평가할 수 있다. 앞으로도 우리나라 행정법 이론과 제도를 정립하고 창조적인 법문화를 발전시키는 데 있어서 《고려법학》이 주도적 역할을 담당할 것을 기대한다. Since the “Korea University Law Review” which is the former name of the “Korea Law Review” was published, it has become academically important to overview the thesis published in the “Korea Law Review”, the “Korea University Law Review” and the “Law and Administration Review” in order to study the contribution of the “Korea Law Review” on the developments of the science of Administrative Law. Overviewing the Korea University law journal series listed above is also helpful in historicizing the aspects of the evolution of Administrative Law while simultaneously outlining the future prospects of the field of Administrative Law. The vitality of the efforts explained above is emphasized when concerning the high degree at which the College of Law at Korea University and its law journals influence the academic developments of Korean Administrative Law. In full consideration of the notion that the methods in which the history of Korean Administrative Law is periodized in the “Korea Law Review” can by no means be interpreted under a single perspective, this paper divides them as follows. The first period is the time between 1958 when the “Korea University Law Review” was published and 1981 when the publishing title of the journal changed to “Law and Administration Review”. This period is when Korean Administrative Law laid its roots, primarily propelled by the efforts of professor Se-Chang Yoon, an academic among the first generation of the science of Korean Administrative Law. The second period begins in 1982 as the title re-changed to the “Korea University Law Review” and runs until 1992 when the 28th volume of the journal was made available. This period is shined with the great strides in the science of Korean Administrative Law around the work of professor Nam-Jin Kim and Sang-Kyu Rhi, who were the second generation academics of Korean Administrative Law. The third period can be remarked as the time when the science of Korean Administrative Law attained to maturity, running from 1993 when the 29th volume of the “Korea University Law Review” was published until the publication of the 35th volume in 1999. Lastly the beginning of the fourth period is marked by the change of the journal`s title to “Korea Law Review” in 2001 and the period has not seen its end until present. The fourth period can be evaluated as the time that the “Korea Law Review” copes with fluctuating legal circumstances and takes a key part in forming the theoretical base of new legal fields, as well as actively leading the way of progress in Korean Law studies at the very forefront. In accordance with periodical and societal variations, functions and tasks of administrations must change and it is not only an important mission but also a continuous responsibility of those who pursue the study of Administrative Law to recognize the changes and correspondingly renew the Administrative Law that applies to those changes. In order to vitalize interests and studies on the new fields of Administrative Law, researchers are advised to sustainably succeed and develop the achievements that the “Korea Law Review” has produced thus far. The “Korea Law Review”, along with its former versions that are the “Korea University Law Review” and the “Law and Administration Review” has been taking a significant role as an academic pioneer in modifying and maturing the theories and judical precedents of Administrative Law in Korea. It is expected that the “Korea Law Review” will proceed and take charge of playing a principal role in establishing the legal theories and related systems in Korean Administrative Law while fostering a creative legal culture.

좌굴을 고려한 언더텐션 구조의 최적설계

김연태(Kim Yeon-Tae),김대환(Kim Dae-Hwan),이재홍(Lee Jae-Hong) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(구조계)

Under-tension system is frequently employed for large span structures to reduce the deflection and member size. In this study, micro genetic algorithm is used to find an optimum cross section of truss structures with under-tension cable under transverse loading. Maximum deflection, allowable stress and buckling are considered as constraints. The present approach is verified by 10-bar truss example showing good agreements with previous results. In numerical results, The minimum weight design of under-tension structure is performed for various magnitudes of pretension.

환경행정소송상 소송요건의 문제점과 한계 -원고적격을 중심으로-

김연태 ( Yeon Tae Kim ) 안암법학회 2011 안암 법학 Vol.0 No.35

Environmental Administrative Litigation is a control procedure enforced by courts on illegal environmental administrative actions in order to protect the environment. A court`s possible solutions for environmental disputes are limited not only by its authority which is restricted to the interpretation and application of relevant Statutes but also by the fact that a lawsuit may only proceed on satisfaction of its jurisdictional elements. Not unlike general administrative litigation, the standing requirement in environmental administrative litigations performs its function to filter administrative actions to be enforced by the courts. In other words. the standing :requirement determines the scope and limitations of judicial review in such administrative actions. Thus one must recognize the need to expand the court`s power for purposes of environmental protection while acknowledging the limitations of the court`s power based on concepts of separation of power. According to Korean judicial precedent, people residing within the Environmental Impact Assessment (EIA) area are de facto presumed to have standing in lawsuits while people residing outside the area are required to prove their standing. Such judicial precedent is considered to be a step-forward in comparison to previous case law which completely denied standing to people residing outside the EIA area. While maintaining this line of legal policy, going forward, it will be necessary to find a more rational legal base of reasoning. Given the seriousness and distinctiveness of environmental issues, traditional litigation measures or legal principles may be insufficient solutions. To overcome this difficulty, it is worth to review the Verbandsklage of Germany or The Public Trust Doctrine of the U.S. as possible candidates to deal with the weaknesses of our litigation system which is based on personal relief to settle environmental conflicts.

모바일 어플리케이션을 이용한 차선의 시인성 분석 연구

김연태(Yeon Tae Kim),이수형(Soo Hyung Lee) 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.4

본 연구에서는 모바일 어플리케이션을 활용하여 스마트폰 카메라로 촬영한 차선 이미지의 가시성을 기반으로 시인성을 분석하는 연구를 진행하였다. 촬영 어플리케이션을 자체적으로 제작하고 차선을 촬영할 때 컬러패치를 함께 촬영하여 어플리케이션에 포함된 인공지능 알고리즘으로 컬러패치를 검출하였다. 이후 검출된 컬러패치의 좌표영역을 기준으로 24개의 컬러패치 영역을 통해 차선 이미지의 색상을 교정하였다. 교정된 이미지는 RGB-YUV 변환을 통해 Y값을 추출하였다. 실험과정은 동일한 도로구간에 대해 3일 동안 오전 10시, 오후 2시, 오후 7시에 걸쳐 사진을 촬영하였다. 데이터 분석결과 컬러패치를 이용해 교정을 함으로써, 외부 환경의 영향을 최소화했지만 Y값은 외부 환경에 따라 현저하게 변화하는 결과를 얻었다. 따라서 RGB-YUV 변환을 통해 추출된 Y값이 실제 물리적인 휘도값을 절대적으로 반영한다고 보기에는 어려운 것으로 나타났다. 또한 촬영 시간과 각도에 따라 Y값이 현저하게 변화하는 결과를 나타내는 것으로 분석되었다. 또한 본 연구에서는 단일의 스마트폰을 사용하여 이미지를 촬영하였지만 향후 스마트폰의 기종별, 해상도별 Y값의 변화정도를 수치화하여서 보정공식을 도입해야 할 필요성을 확인하였다. In this study, visibility was analyzed in lane images captured with a smartphone camera using a mobile application. When photographing a lane, color patches are photographed together and detected with an artificial intelligence algorithm that is included in the application. The color of the lane image is corrected through 24 color-patch areas based on the detected coordinate area of the color patches. In the corrected image, the Y value was extracted by RGB-YUV conversion. Photos were taken at 10 am, 2 pm, and 7 pm on the same road section for 3 days. As a result of data analysis, the effect of the external environment was minimized by correction using color patches, but the Y value changed remarkably according to the external environment. Therefore, it is difficult to see that the Y value extracted through RGB-YUV conversion absolutely reflects the actual physical luminance value. In addition, the Y value showed different results depending on the time and angle of the photo.