강원,경북지역 낙엽송 지위지수 적합성 평가에 관한 연구

이대성 ( Dae Sung Lee ),이의섭 ( Eui Sub Lee ),최종현 ( Jong Hyun Choi ),서영완 ( Yeong Wan Seo ),최정기 ( Jung Kee Choi1 ) 한국임학회 2014 산림과학 공동학술대회 논문집 Vol.2014 No.-

본 연구는 강원 및 경북지역의 낙엽송 지위지수의 적합도를 평가하기 위해 실시되었다. 연구자료는 강원 및 경북지역의 45개 낙엽송 인공림 표준지 조사로부터 우세목 1본을 선발하여 수간석 해를 통해 분석되었다. 산림청에서 개발된 지위지수표에 의거하여 본 연구대상지의 지위지수를 산정한 결과, 지위지수가 18 이하로 낮은 지역은 8곳(18%)이었으며, 지위지수가 20 이상으로 우수한 지역이 37곳(82%)으로서 대부분 지역에서 지위지수가 우세하였다. 지위지수곡선의 적합도를 평가하기위해 수간석해목의 과거에서 현재까지의 수고생장에 따른 지위지수의 변화를 도시한 결과, 초기 임령 때 지위지수와 차이가 없는 곳은 단지 8지역(18%)이었으며, 지위지수가 2∼4 m 차이가 발생한 지역이 19곳(42%), 6 m 이상 발생한 지역이 18곳(40%)으로 나타났다. This study was performed to evaluate the compatibility of site index for Larix kaempferi in Gangwon and Kyeongbuk regions. The data were collected and analyzed from stem alalysis of one dominant tree at each of 45 permanent plots installed in the regions. The result of site index estimation following the site index table developed by Korean Forest Service (KFS) showed that 8 plots (18%) were less than site index 18 and 37 plot (82%) greater than site index 20. Height growth changes of stemmed trees until present were illustrated in a graphic form to evaluate the compatibility of site index curve. The result showed that only 8 plots (18%) did not show any change of site index as trees age, 19 plots (42%) fluctuated in 2∼4m and 18 plots (40%) over 6m.

High Level Production of Human Leptin using Constitutive Promoter in rpoS Escherichia coli

Jong Hyun Choi(최종현),Ki Jun Jeong(정기준),Sang Yup Lee(이상엽),Moon-Hee Sung(성문희) 한국생물공학회 2004 한국생물공학회 학술대회 Vol.2004 No.10

朝鮮朝 漢陽遷都時 儒ㆍ佛 合意 背景에 관한 연구

최종현(Choi, Jong-Hyun) 한국도시설계학회 2008 도시설계 : 한국도시설계학회지 Vol.9 No.4

개경과 남경 사이

최종현(Choi, Jong-Hyun) 서울시립대학교 서울학연구소 2016 서울학연구 Vol.- No.63

고려의 간선도로망과 역참제도는 12목 제도와 더불어 성종 시기(재위 981-997)에 정립되었으며 개경과 남경 사이를 오가던 간선도로는 ‘청교도(靑郊道)’에 속하는 대로였다. 고려시대 남경에 궁궐이 조성되면서 수도 개경에서 남경으로 향하는 청교도 상의 노정에 변화가 생기고 이전에 양주로 접근하는 두 갈래 길이 대로로 정비되면서 동대로와 서대로가 조성되었다. 왕실의 순행 목적에 따라서 노정은 선택적으로 이용되었는데 피난 등 급하게 움직일 일 때에는 직로(直路)가 불렸던 서대로가 이용되었다. 개경을 출발하여 청교역을 거쳐 임진강을 건너고 도솔원, 광탄원, 분수원, 혜음원, 벽지역, 덕수원, 영서역을 지나 장의문을 통과하여 홍제원에 이르는 노선이다. 반면 개경에서 남경으로 왕실의 의전 행차가 있을 때에는 비교적 평탄한 길로 이어진 동대로가 주로 이용되었다. 마산역에서 동쪽으로 향해서 차유령을 넘어서 견주 치소, 녹양역, 해촌을 지나 노원역, 남경역, 남경으로 이어지는 노정이었다. 고려의 간선도로망과 역참제도는 조선이 개국하면서 변했다. 고려 남경 시기의 역원들이 재편되어 일부 역은 양주목 관할하에 배치되면서 그 위상이 격상되기도 하고 낮아지기도 했으며 한양부 관할 하에 역 이름 개가 새로 나타나기도 했다. 중국 사신을 위하여 직로(서대로) 상의 사신들 노정에 있던 절을 원으로 고쳐 홍제원이 조성되었으며 흥인문 동쪽 5리 되는 곳에 기로와 재추들을 위하여 보제원이 설치되었다. 결과적으로 고려시대의 청교도는 와해되었으며 이때 남경역은 그 명칭이 사라졌다. 더불어 고려시대 의전으로 이용되던 동대로는 그 기능과 역할이 크게 바뀌었다. 조선시대 후기-인조대부터 왕실의 능들이 많이 조성되었으며 그에 따라 능행로가 조성되었다. 파주에 장릉이 조성되면서 이전 서대로 구간 일부에 능행을 위한 갈래길이 새로 조성되었으며 영조대에는 장릉을 파주에서 교하로 천장하면서 고려시대 서대로와는 별개로 완전히 새로운 능행로가 조성되었다. 새로 조성된 노선들이 서로 만나는 결절 지점에 있는 원(院), 신원(新院)이 수시로 이용되었다. 고려시대 남경유수관 양주 관할 하에 설치되었던 견주는, 조선시대에 들어와 하나의 현으로 양주에 속했다가 이후 해체·흡수되면서 사라졌다. 견주는 충숙왕 때에 덕비(德妃) 홍씨로 인해 고려사에 나타나고 조선 태종실록에도 등장하는 중요한 역사적 장소이다. 발해가 멸망하면서 거란족을 비롯하여 여진족, 몽고족, 한족이 고려에 귀화해왔는데 그들의 일부가 견주에 정착해 살았다. This studies is on the (re)forming and change of paths(roads) and stations between Gaegyung(開京-the capital city of Corea dynasty) and Namkyeong(南京) from Corea dynasty to Joseon dynasty. Many stations had accomodations of staying and eating on the road of Cheonggyodo(靑郊道) which was the main path between Gaegyung and the other southern areas. Seoul was called Namkyeong where royal palace was built in Corea dynasty. Many famous buddhist temples had been constructed in the Mountain of Samgaksan near Namkyeong. The two roads(East and West road) were made to go to Namkyeong from Gaegyung for many kings to visit the royal palace or buddhist temples in Corea dynasty. West road was made to move the royal shrine of the first king of Corea dynasty to the Mountain of Samgaksan(三角山) urgently during the war and was called straight course. East road was constructed for the king’s ceremonial visit to Namkyeong since the royal palace was built there. At the beginning of Joseon dynasty, the station system of Corea was changed and Cheonggyodo was deconstructed. West road was used for royal envoy to go to Ming dynasty from the new capital city, Seoul and the status of East road was changed. The name of Namkyeong station in East road disappeared and the names of some stations in West road were changed. In the late Joseon dynasty, new paths were made in the some part of West road when many royal tombs were constructed in the north of Seoul.

Oracle 데이터베이스의 삭제된 레코드 복구 기법

최종현(Jong-Hyun Choi),정두원(DooWon Jeong),이상진(Sangjin Lee) 한국정보보호학회 2013 정보보호학회논문지 Vol.23 No.5

기업의 정보는 대부분 데이터베이스에 보관된다. 따라서 기업의 범죄 행위를 조사하기 위해서는 데이터베이스에 대한 포렌식 분석이 중요하며 삭제 레코드 복구 기술을 개발할 필요가 있다. 이에 본 논문은 전 세계적으로 가장 많이 쓰이는 Oracle 데이터베이스의 테이블스페이스 파일 구조와 테이블정보를 저장하고 있는 시스템 테이블에 대해 분석하고, 이를 통해 Oracle 테이블스페이스에서 삭제된 레코드를 복구할 수 있는 방법을 제시한다. Most of the enterprise information is stored in the database. Therefore, in order to investigate the company’s criminal behavior, forensic analysis is important for the database and delete record is a need to develop recovery techniques. This paper is explained structure of the oracle database tablespace file and analyzed system tables that stored table information. Further, we suggests a method of recovery for deleted record in oracle tablespace.

토크 신호분석을 활용한 직교형 산업용 로봇 이상 감지

최종현(Jong Hyun Choi),송병훈(Byung Hun Song) 대한전기학회 2020 정보 및 제어 심포지엄 논문집 Vol.2020 No.10

문자열 검출을 위한 슬라브 영역 추정

최종현(Jong Hyun Choi),최성후(Sung Hoo Choi),윤종필(Jong Pil Yun),구근휘(Keunhwi Koo),김상우(Sang Woo Kim) 대한전기학회 2009 전기학회논문지 Vol.58 No.5

In steel making production line, steel slabs are given a unique identification number. This identification number, Slab management number (SMN), gives information about the use of the slab. Identification of SMN has been done by humans for several years, but this is expensive and not accurate and it has been a heavy burden on the workers. Consequently, to improve efficiency, automatic recognition system is desirable. Generally, a recognition system consists of text localization, text extraction, character segmentation, and character recognition. For exact SMN identification, all the stage of the recognition system must be successful. In particular, the text localization is great important stage and difficult to process. However, because of many text-like patterns in a complex background and high fuzziness between the slab and background, directly extracting text region is difficult to process. If the slab region including SMN can be detected precisely, text localization algorithm will be able to be developed on the more simple method and the processing time of the overall recognition system will be reduced. This paper describes about the slab region localization using SIFT (Scale Invariant Feature Transform) features in the image. First, SIFT algorithm is applied the captured background and slab image, then features of two images are matched by Nearest Neighbor (NN) algorithm. However, correct matching rate can be low when two images are matched. Thus, to remove incorrect match between the features of two images, geometric locations of the matched two feature points are used. Finally, search rectangle method is performed in correct matching features, and then the top boundary and side boundaries of the slab region are determined. For this processes, we can reduce search region for extraction of SMN from the slab image. Most cases, to extract text region, search region is heuristically fixed [1][2]. However, the proposed algorithm is more analytic than other algorithms, because the search region is not fixed and the slab region is searched in the whole image. Experimental results show that the proposed algorithm has a good performance.

古典 속에 나타난 陶山書堂의 造營思想 연구

최종현(Choi, Jong-Hyun) 한국도시설계학회 2005 도시설계 : 한국도시설계학회지 Vol.6 No.1

서울학의 확장을 위한 몇 가지 연구 주제 제안

최종현(Choi, Jong-Hyun) 서울시립대학교 서울학연구소 2013 서울학연구 Vol.- No.52

The field of Seoul Studies should be extended in terms of the spatial and the periodic to Goryeo dynasty and to the neighboring area. The study on Mamgyeong(南京) in Goryeo dynasty can be the most important theme for the prospective study. The place of Geonjoo(見州), Sa-cheon(沙川), Poong-yang(豊壤) was related closely to Mamgyeong but the study on that have rarely been accomplished. The road between Mamgyeong and capital city Gaesung(開城), roads network around Mamgyeong, the construction of whole traffic network of waterway and land rout to Mamgyeong and Hanyang also should be investigated historically with the consideration of stations, ports and auxiliary organizations. All the buddhist temples in Samgaksan(Bookhan mountain) constructed in Goryeo and Josun dynasty don’t have remained. But many temples constructed before the period of United Shilla have continued to exist although Josun dynasty had pursued the policy of respecting Confucianism and objecting against Buddhism. The reason for that or historical foundation of that deserves to be investigated on the basis of practical approach.

백석정 별서유적 및 백석동천 연원에 관한 연구

최종현(Choi, Jong-Hyun) 서울시립대학교 서울학연구소 2014 서울학연구 Vol.- No.57

This article studies on the history of the bower of Baeksukjeong(白石亭) in Baeksukdongcheon(白石洞天) which is located in the northern valley of mountain Baekak(白岳), the east side of Tangchoondae(蕩春臺) near the mountain of Bookhansan(北漢山). The history of the bower of Baeksukjeong(白石亭) has been not known recently and the only ruins of the bower remains. The area of Tangchoondae(蕩春臺), the northern area of the North Gate(Changiumoon彰義門) of capital city had not been open to common people except royal retainer and ministers until 18th century in Jo-sun(朝鮮) dynasty when the mountain fortress wall of Bookhansansung(北漢山城) was built by King Sook-jong(肅宗). Since the structure of the mountain fortress wall - middle castle - city castle was constructed, this area became the place for excursion and association of literary group and noblemen. In 18th century, some literary group retired from political affairs and left out of practical politics, as group of Mam-in(南人), So-ron(少論), Sil-hak(實學), school of Gang-wha(江華學派) and literary men from middle class(委巷文人), enjoyed an outcoming to this area and get together to compose poems and some writings in Tangchoondae(蕩春臺), Samgye(三溪), Bookhansanseong(北漢山城) and temples in Bookhansan(北漢山). Among them, Heo-pill(許?) built some small cottage called by bower of Baeksukjeong(白石亭) or Ganjeongryo(看鼎寮) in Baeksukdongcheon(白石洞天) valley to live a lonely life of composing poems and drawings. There was a big rock in the opposite hill to the site of bower Baeksukjeong(白石亭), on which the letter ‘月巖(Wal-am)’ was carved very distinctly. Gang-sae-dong(姜世東) had his a small thatched cottage near this rock. Heo-pill(許?) and his friends, Kang se-whang(姜世晃), Yi Yong-Hue(李用休) and Yim Hee-seong(任希聖) were scholars of Ma-min(南人) or so-book(小北) group who left out of practical politics to enjoy lonely life and made some excursion in this area. But the bower of Baeksukjeong(白石亭) was collapsed and later history of the site was not well known. The famous scholar in 18-19th century, Kim Jeong-hee(金正喜) whose father was known that he had some villa in the site of Baeksukjeong(白石亭). Tangchoondae(蕩春臺), Bookhansan(北漢山) and Saegumjeong(洗劍亭) was famous for excursion site of contemporary men of power influence but Baeksukdongcheon(白石洞天) valley near those places was not well known because of the geographical condition and was just a place for specific group of retired literary men in 18th century.