금속 3DP KEPIC 표준화 추진현황 및 계획

서주환,주현재 대한용접·접합학회 2021 대한용접학회 특별강연 및 학술발표대회 개요집 Vol.2021 No.11

국가 에너지전환정책 시행에 따라 국내 및 수출원자력발전소는 신규 원자력발전소 건설이 불투명하고 건설중인 원자력발전소는 완료단계로 국내 원자력발전소 부품의 수요 절벽 현상이 발생하고 있다. 현재 가동 중인 원자력발전소의 지속적인 안전성 확보를 위해 손상부품의 보수·교체 활동에 필요한 단종 부품의 생산 및 공급망 유지를 위해 해결방안이 필요하다. 단종 부품의 보수·교체활동을 위해서는 소량생산에 적합한 3DP(3-Dimensional Printing) 제조기술 적용이 필요하다. 해외에서는 3DP 기술 표준화를 위해 ASME(American society of mechanical engineers) 등 SDO(Standards Development Organization)에서 관련 표준 개발 중에 있으며 ASTM(American Society for Testing and Materials)에서 AM(Additive Manufacturing)분야로 여러 표준을 발행하였다. 3DP 제조기술과 가용재료의 확장으로 3D프린팅 적용분야는 점점 확대되고 있고 해외에서도 표준 개발을 위해 많은 노력을 하고 있지만, 전력산업 분야 적용을 위한 재료, 공정, 시험검사, 인증, 사용 등을 규정하는 표준은 3DP 산업의 급속한 성장속도를 따라가지 못하고 있다. KEPIC에서는 전력산업계의 수요를 토대로 표준화 방안을 선제적으로 준비하고자하여 금속 3DP KEPIC 표준화 소위원회를 구성하였다. 금속 3DP KEPIC 표준화 소위원회는 KEPIC 개발체계를 수립하고, 개발 필요한 표준 내용을 도출하며, 선진사례를 조사·분석하고, 도출된 표준 개발(안)을 추진할 수 있는 KEPIC 표준화 개발위원회 운영(안) 제시 등을 목적으로 발족하여 지난 2020년 10월까지 단계별 추진 및 성장전략을 제시하며 활동을 종료하였다. 본격적인 3DP 분야 KEPIC 표준화를 위해 KEPIC 금속 3DP 특별위원회 신설을 KEPIC 정책위원회로부터 승인(’20.11.24)받아 산업계 전문가로 구성하여 운영하고 있으며, 전력산업 분야에 적용할 수 있는 금속 3DP 기술 표준화를 수행할 예정이다.

한국철도관광의 어제와 오늘

서주환 한국철도학회 2015 철도저널 Vol.18 No.3

도시근교농촌 아파트 단지의 시각적 영향 -용인시를 대상으로-

서주환,최현상,변성진,나혜진 한국조경학회 2000 韓國造景學會誌 Vol.28 No.1

The purpose of this study is to examine the effect factors in suburban rural landscape and significant factors of apartment complex which are effective to the skyline of the sloped mountains. Also it is to propose the basic resources to preserve and improve the suburban rural landscape. The target site is Young-In, which shows the typical of rural development. Sides were take in young-In City along the roads and selected for 20 pieces. This study used questionnaire about the suburban rural landscape surveying of 45 students in Kyunghee Univ.. Also we found 2 dependent variables and 8 independent variables totally. Moreover, we have analyzed the data using descriptive statistics, correlation analysis, and multiple linear regression method between the preference and physical factors, and between the vulnerability and perceptional factors. The results are as follows: 1) With the dependent variable of preference, the areas of "green space" and "agricultural productive lands" were highly influenced in the suburban rural landscape positively, but the areas of "apartment complex" and "other buildings" were negatively effected. 2) With the dependent variable vulnerability, the area "apartment complex" and cutting numbers of the "skyline of mountainous ridge" were proved as significantly positive factors, but the length of the "skyline of mountainous ridge" turned out to be a negative factor. Although this study has the difficulty to be generalized, it can be used for planning and designing of the apartment complex in suburban rural landscapes, and it will provide the basic guideline for preserving and managing of the suburban rural landscapes.uideline for preserving and managing of the suburban rural landscapes.

토양의 종류가 벌개미취의 생육에 미치는 영향

서주환,김광식 경희대학교 디자인연구원 2005 예술· 디자인학연구 Vol.7 No.2

1. The fresh weight on development form of Aster Koraiensis was showed remarkably high on development form under sandy-loam(30%) plot + leaf-mold(70%) plot as compared with another plot. 2. In unmber of appearance of Rhizome. sandy-loam(30%) plot + leaf-mold(70%) plot was showed high on development form. 3. The length of Rhizome was showed remarkably high tendency comparision plot as compared with control plot. 4. This results is considered most profitable propagation of Aster koraiensis that development environment was consist of sandy-loam(30%) plot + leaf-mold(70%) plot.

도시근교형 자연휴양림 이용 행태와 만족도 분석 - 서울 근교를 중심으로 -

서주환,최현상,전형석 한국조경학회 2003 韓國造景學會誌 Vol.30 No.6

This study researches attributes , behaviors , satisfaction factors and degrees of curiosity of visitors to recreational forests in the suburbs of a large city. It aims to present suggestions for urban forest development and management policy by offering basic data which help to plan, design and manage recreational forests to increase the quality of these environments. The results are as follows First, in attribute, the visiting rate of males is higher than that of females, and the main users are in their thirties and forties. Sixty percent of visitors graduated from university and their rate of employment is evenly distributed. 95 percent of visitors are residents of the metropolitan area. In terms of behavior, major visitors are family units visiting during summer seasons and for overnight stays. 75% are re-visitors. 85% of visitors came to escape the city with families and friends, keep in good health and experience nature. Second, to extract the factors affecting visitor satisfaction in recreational forests, the natural environment, facilities, and management/use systems were identified as independent variables, while subordinate satisfactions were dependent variables. so regression analysis was used. Thus, the variables affecting the natural environment are quality of water, stream use, biodiversity, fresh air and landscape factors. The variables affecting facilities are puking, convenience, play facilities, sanitary arrangement and camping. Most important among the variables affecting management/use systems are educational facilities and access condition. On the basis of generalizing the study in the existing individual site, we must verify the visiting characteristics in recreational forests in the suburbs of a large city. Since development of recreational forests is understood as a sequence considering a site and a given condition, and since management and improvement must unfold according to these characteristics, a strategy is needed to reveal visitors' opinions about the site. Depending on the facilities and service, satisfaction of recreational forests is generally influenced by social and economic qualities. Also, this study can look into the effect according to use pattern motive and season. As suburban recreational forests have many overnight-users and younger men, programs suitable for these groups are needed. On the basis of variables affecting satisfaction according to natural environment, facilities, and use system, policies which can manage the natural environment and introduce educational programs are needed.

송파농산 기본계획

서주환,변성진,김상범,최미진 경희대학교 디자인연구원 2000 예술· 디자인학연구 Vol.3 No.1

As the standard of living rises and spare time grows, the demand Pattern to the leisure tends, which are on the variety, a high life and a wide area, is changing into total recreation form. As a result, we are so willing to build up sightseeing-leisure site elevating the standard of living in accordance with faciiities and program satisfying desire of new sightseeing form that can contribute development of local society and residents earnings. And according to using the maximum local resource, we are to propose model of minimum-damaged tourist site.

인터넷 리치미디어 광고의 시각적 특성에 관한 연구

서주환,정수진 한국일러스트레이션학회 2005 일러스트레이션 포럼 Vol.10 No.-

경희대학교내 한·중·일 전통정원조성 기본계획에 관한 연구

김도경,서주환 韓國植物·人間·環境學會 1998 인간식물환경학회지 Vol.1 No.2

In 1988, Kyung Hee University announced a plan to have Korean, Chinese, Japanes Gardens in Suwon Campus. This plan reflects the idea of that gardens as special cultural environments could be functioned as places for education for the whole man. These gardens will be prepared by landscape architects of Korea, China, and Japan. This cooperative process and Korean, Chinese, Japanese gardens as it's outcome will increase friendly relations between three countries in nongovernmental diplomacy level and will be used as places for academic interchange. The purpose of this study is to find out how each country's landscape architects interpret their own traditional gardens in modern sense and compare their own ways of approaches in developing a plan of three gardens in a single site.

농촌정주생활권에 있어서 경관정비계획방법에 관한 시론

서주환,이경진 ( Joo Hwan Suh,Kyung Jin Lee ) 한국농촌계획학회 1996 농촌계획 Vol.2 No.1

얀센 메커니즘을 이용한 자율주행 로봇의 설계 및 제작

서주환,이병호,이우석 (사)한국CDE학회 2018 한국CAD/CAM학회학회지 Vol.24 No.2

본 연구에서는 테오-얀센 메커니즘을 이용한 8족 보행 로봇을 기반으로 한 자율주행 메커니즘을 다루었다. 얀센 메커니즘의 설계는 m.Sketch와 Edison Designer를 활용하여 3D프린팅을 할 수 있도록 진행하였다. 주행 메커니즘은 초음파 센서와 자이로스코프 센서를 활용하여 로봇의 현재 상태를 몇 가지의 경우로 나누어 분석, 파악하는 알고리즘을 구상하였으며 PID 제어기를 이용하여 직선구간에서는 주어진 트랙의 중앙부로 주행하는 알고리즘을 구현하고, 회전구간에서는 정확하게 90도를 회전하는 알고리즘을 구현하고자 하였다.