총장골정맥과 하대정맥 전장이 폐쇄된 Budd-Chiari 증후군 1예

최창환,정영호,문현웅,김광철,박무영,이성걸,이호심,김종숙 大韓消化器病學會 1994 大韓消化器病學會誌 Vol.26 No.3

부산시 아파트地域 成長패턴에 關한 調査硏究

崔昌煥,安相哲 동아대학교 공과대학 부설 한국자원개발연구소 1980 硏究報告 Vol.5 No.1

I could be mought a following conclusion as a result groped for a development orientation according to spatial distribution of apartment area through research analysis on rate of individual growth, income class, and lans value for defined unit area on growth pattern of apartment area in busan city. 1. It is considered that we must develop positively slope and hill area added locational characteristics of busan city, and urban renewal with improvement of residence environment, if we are able to construct apartment area contributing to quantity increase of housing Suply. 2. Apartment area dispersed spatialy and close related with residential function requires improvement of route network for its access and ease. 3. We must improve some problems of row house development of small scale in encouraging apartment sites over middle scale through as-ditional designation of apartment site in open area which is able to develop. 4. It must be taken effect consistantly with Comprehensive planning so that Spatial distribution of apartment area in busan city may become a rational distribution.

중국의 한국 제품에 대한 반덤핑 규제의 영향요인 분석

최창환 한국국제상학회 2011 國際商學 Vol.26 No.3

China has used the Antidumping policy as a trade protection tool against Korean products due to reduce the deficit of trade balance of payment, boost the economic growth and protect its weak industries. This paper investigates whether there is a connection between the China’s macroeconomic activity and pressures for protection under antidumping with using the current data that come from the WTO, World Bank for 1997 to 2010. The result suggests that pressures for protection under Antidumping against exporting of Korean products to China have increased during periods of macroeconomic weakness like high unemployment, low economic growth, larger deficit of trade balance and decreased during periods of macroeconomic strength.

수취계정에 대한 체계적 관리 및 프로세스 개선

최창환,이종환 한국산업경영시스템학회 2011 한국산업경영시스템학회 학술대회 Vol.2011 No.-

This study look at a company which introduced SAP program, one type of ERP systems, and how the firm cope with the problems which happen in business process. The research tried to solve the problem by IDEAL method of process software improvement methodology. As a result, receipt account program for credit sales could be developed; the program was applied to the actual business work and operated.

集團住居地의 機能에 關한 硏究2. : 화이트 칼라層 아파트團地의 경우 A Case of Apartment Sites of White Colour Class

崔昌煥 동아대학교 공과대학 부설 한국자원개발연구소 1980 硏究報告 Vol.4 No.2

This study is a thesis of series about the establishment of collective residence function through total dweller's life within collective residence place. From these viewpoints named a development of dweller's human relation, living time, living sphere and community consciousness on the Busan apartment site, this could be sought as a following conclusion on Busan apartment sites of white colour class on the purpose of continuous study for community site fixation. 1) District community of dweller's human relation has little proportion as against household but large proportion in the housewife. 2) District community by the street is related with environments on the same degree with internal district but still now, human relation before occupancy is greater than after occupancy. 3) There are some visitors in the home, and there are so many internal inter-neighbourhood visitors among them. In this viewpoint, housing becomes a social space so much. 4) Consciousness on meeting is affirmative or desiring the developmental side, especially this is notable on meeting of voluntary social sphere. 5) Structure of dweller's living time divides into householder and housewife of urban communing white colour class I guess. 6) On purchasing sphere, though daily provisions necessities are dependent upon internal district or district periphery is dependent on urban department.

釜山의 都市變遷에 관한 考察 : 解放 40年을 中心으로 Based on Forty Years since Liberation

崔昌煥 東亞大學校 1985 東亞論叢 Vol.22 No.1

Pusan has been growing with our national history. A study is made on a historical background in the formation of modern Pusan City with the forty years of Liberation and the transitional process of Pusan City by period. Pusan City was shaped on the centripetal tendency of Japanese settlements in its formation under the rule of Japanese imperialism since Pusan opened a port in 1876, and was framed as a colonial port city. The urban transition of Pusan after Liberation is classified as follow. 1) A period when Pusan was urbanized in disorder after Liberation and accommodated refugees during the Korean war (1945~1960). 2) A period for the May 16 revolution, commencement of five years economic development plan, the raising of status of Pusan City under the direct control of the Goverment, excess of one million ppulation, and the Sasang Industrial Complex Plan (1961~1966). 3) A period for urban development based on industrial complex and readjustment of town lots project (1967~1971). 4) A period for designation of urban greenbelt and planning arrangement (1972~1976). 5) A period for requirement of realistic urban planning and Pusan City development toward 2000 years (1977~1985).

韓國의 都市規模別 計劃人口 密度에 관한 硏究

崔昌煥,吳錫氣,安相哲 동아대학교 공과대학 부설 한국자원개발연구소 1977 硏究報告 Vol.2 No.1

Population is concentrated urban region in Korea. It is leading to over-massed dwelling of urban region and was made worse by the residential environment. This study is comparison of population density by the city size of the Master Plan in Korea. Analytical method decide ranking at thirty-five cities of Korea by the census in 1975 and it divided into city size which is Metropolis (over a million), Large City (300-1,000 thousand), Middle Town (100-300 thousand) and Small Town (under 100 thousand persons). In this study, population density for possible developing area was computed by the presumption of population in 1986. The results of this study are summerized as follows: 1). Population plan was underestimated in Metropolis (Seoul, Busan and Daegu) by policy agreement. 2). The possible developing area's population density will proper in under-a million's city. 3). The Metropolis cause an advance in the population density of possible developing area in 1936 and will bring about a change for the worse of residential environment. (362persons/ha.) 4). A plan of solution to a population density's rising is necessary re-enforcement of re-completed master plan and the plan of arrangements for residential area must be considered in the plan of re-completed master plan.

再開發地區指定의 設定基準에 관한 硏究

崔昌煥,吳錫氣,安相哲 동아대학교 공과대학 부설 한국자원개발연구소 1982 硏究報告 Vol.6 No.1

This study is for the establishment standard on the blighted degree in urban renewal area. The factors of establishment standard is population density, ratio of a building site, size of a building site, diffusion ratio of road, ground coverage, volume ratio of building, dwelling space of a person, total floor space per building, and others. As a result of this study, the standard of renewal area appointment is as follows. 1) Population density … over 300 person per hectare. 2) Ratio of a building site … over 70 percent. 3) Size of a building site … under 120㎡ 4) Diffusion ratio of the road … under 25 percent. 5) Ground coverage of a building … over 55 percent. 6) Volume ratio of a building … over 120 percent. 7) Dwelling space of a person … under 20㎡ 8) Total floor space per a building … under 80㎡ 9) Age of building … over 40 years.

수복재료와 임플랜트 종류에 따른 임플랜트및 지지조직의 응력분포

최창환,양홍서,오종석 전남대학교 치의학연구소 2001 구강과학 Vol.13 No.4

This study was aimed to analyze the stress distribution of implant and supporting tissue in single tooth implant restoration using Bra˚emark system®(Nobel Biocare, Gothenberg, Sweden) and Bicon system(Bicon Dental Implants, Boston, MA). Two dimensional finite element analysis model was made at mandibular first premolar area. As a crown materials porcelain, ceromer, ADA type Ⅲ gold alloy were used. Tests have been performed at 25Kgf vertical load on central fossa of crown portion and at 10㎏ load with 45° lateral direction on cusp inclination. The displacement and stresses of implant and supporting structures were analyzed to investigate the influence of the crown material and the type of implant systems by finite element analysis. The results were obtained as follows: 1. The type of crown material influenced the stress distribution of superstructure, but did not influence that of the supporting alveolar bone. 2. The stress distribution of ceromer and type Ⅲ gold alloy and porcelain is similar. 3. Stress under lateral load was about twice higher than that of vertical load in all occlusal restorative materials. 4. In Bicon system, stress concentration is similar in supporting bone area but CerOne system generated about 1.5times greater stress more in superstructure material. 5. In Bra˚emark models, if severe occlusal overload is loaded in superstructure, gold screw or abutment will be fractured or loosened to buffer the occlusal overload but in Bicon models such buffering effect is not expected, so in Bicon model, load can be concentrated in alveolar bone area.

암모니아수 저장시설 누출 시 트렌치 설치에 따른 피해영향범위 분석에 관한 연구-합성수지 제조공정을 중심으로-

최창환,천영우,문진영,황용우 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0

본 연구에서는 합성수지 제조공정 내 암모니아수 저장시설에서의 누출 시 정량적 위험도 분석을 실시하였다. 피해영향범위 산정을 위해 ALOHA 프로그램을 사용하여, 트렌치 설치 유무에 따른 최악 및 대안시나리오별 피해영향범위를 분석하였다. 최악의 시나리오의 경우 피해영향범위(독성 ERPG-2)는 트렌치 미 설치 시 6.8 km, 트렌치 설치 시 446 m로 나타났으며, 대안의 시나리오의 경우 트렌치 미 설치 시 2.00 km, 트렌치 설치 시 140 m로 나타났다. 또한, 호흡정지로 사망할 수 있다고 알려진 5,000 ppm 이상 농도의 영향범위는 트렌치 설치 시 최악 시나리오의 경우 86 m, 대안 시나리오의 경우 17m 이내인 것으로 분석되었다. 본 연구를 통해, 피해영향범위를 줄이기 위해서는 트렌치 설치가 요구되며, 향후 화학물질 종류별 트렌치의 설치 유무, 설치 면적 등의 조건을 변화시키면서 그에 따른 피해영향 범위를 산정해 보고자 한다.