Petri net의 구조적 boundedness를 판단하는 방법

윤상호(Sangho Yoon),임재걸(Jaegeol Yim) 한국정보과학회 1993 한국정보과학회 학술발표논문집 Vol.20 No.1

Petri net가 concurrent 현상을 모델하는 데 유망하게 쓰이는 이유는 Petri net 자체를 분석하는 방법이 발전되어 있기 때문이다. Petri net의 분석 방법 중에 사이폰과 덫을 이용하는 방법이 free choice net의 liveness 분석을 위시한 여러 방면에 사용된다. 본 논문에서는 기존의 S-invariant를 찾는 방법을 사이폰의 논리적 표현에 적용하여 사이폰을 찾는 방법과 Petri net의 boundedness를 판단하는 방법, 그리고 일반 그래프와 유향그래프의 모든 닫힌 경로를 표현하는 방법을 소개한다. 더 나아가 토우큰 불변을 정의하고 주어진 Petri net의 모든 토우큰 불변을 표현하는 방법 역시 소개 한다.

바다낚시공원지역의 관광활성화 - 고성지역을 사례로 -

윤상호(SangHo Yoon) 한국지역개발학회 2001 韓國地域開發學會誌 Vol.13 No.3

This paper is concerned with the development planning in tourist area. Sea fishing is the representative leisure activity recently. Especially Koseong area located in Kyongnam province is famous for sea fishing public park. Six billion won was invested to the sea fishing area since 1992. But there was no rational & reasonable plan to operate the facilities. So the enterprise of the sea fishing public park has suffered from a loss in terms of money. Then how to operate well the fund & how to develop the area issues now. The enterprise tries to recover the loss. And the circumference condition will be advance in one or two years. Therefore this paper attempts to suggest the tourist development including hinterland.

고체산화물 연료전지 시스템을 위한 kW급 마이크로채널 촉매 디젤 자열 개질기

윤상호(Sangho Yoon),강인용(Inyong Kang),배규종(Gyujong Bae),배중면(Joongmyeon Bae) 대한기계학회 2008 大韓機械學會論文集B Vol.32 No.7

Solid oxide fuel cell(SOFC) has a higher fuel flexibility than low temperature fuel cells, such as polymer electrolyte fuel cell(PEMFC) and phosphoric acid fuel cell(PAFC). SOFCs also use CO and CH₄ as a fuel, because SOFCs are hot enough to allow the CH₄ steam reformation(SR) reaction and water-gas shift(WGS) reaction occur within the SOFC stack itself. Diesel is a good candidate for SOFC system fuel because diesel reformate gas include a higher degree of CO and CH₄ concentration than other hydrocarbon(methane, butane, etc.) reformate gas. Selection of catalyst for autothermalr reforming of diesel was performed in this paper, and characteristics of reforming performance between packed-bed and microchannel catalyst are compared for SOFC system. The mesh-typed microchannel catalyst also investigated for diesel ATR operation for 1㎾-class SOFC system. 1㎾-class diesel microchannel ATR was continuously operated about 30 hours and its reforming efficiency was achieved nearly 55%.

마이크로채널 촉매를 이용한 ㎾급 디젤 자열 개질기

윤상호(Sangho Yoon),배규종(Gyujong Bae),배중면(Joongmyeon Bae) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5

Solid oxide fuel cell(SOFC) has a higher fuel flexibility than low temperature fuel cells, such as PEMFC and PAFC, due to its high operation temperatures. Diesel can be a good candidate for SOFC system fuel because diesel has high hydrogen density and well-established infrastructure, despite several problems such as sulfur poisoning of catalyst and carbon deposition. In this paper, we use microchannel catalyst for diesel autothermal reforming (ATR) and will compare characteristics of reforming performances between packed-bed and microchannel catalyst(monolith-type, mesh-type). We also investigate mesh-typed microchannel catalyst for ㎾e SOFC system.

21世紀 港灣親水空間의 開發技術과 政策課題 : 試論的 接近

윤상호(Sangho Yoon),정봉현(Bonghyun Jeong) 한국항만경제학회 2000 韓國港灣經濟學會誌 Vol.16 No.-

This study is aimed to identify various technologies for developing waterfront and to suggest policy directions for implementing the waterfront development project in the 21'st century. This study is mainly based on the review of the research reports and papers and the interview with experts. The concepts of waterfront are reviewed in the second section on a theoretical perspective. Section three attempts to identify the current technologies for waterfront development. Policy directions are discussed in the fourth section in the institutional context.<br/> Port is regarded as the centre of commerce, trade and population, and its hinterland city has developed around the port. The characterization of past and present waterfronts hardly does justice to the great diversity of major port cities in Korea. In Korean port cities, waterfront is not a lively, vital place. Today, marine recreation and waterfront tourism are of growing importance in advanced foreign port cities. Therefore, waterfront revitalization for Korean port cities are required for improvement of public access, creation of new economic activity, preservation of historic sites, and the general creation of new life and energy. Waterfront development plan should be designed to facilitate the revitalization of commercial viability and accessibility of waterfront areas with communities throughout port area. The important policy directions for waterfront development in Korea are associated with establishment of waterfront master plan, identifying funding sources, marketing the waterfront plan, managing waterfront revitalization, and phasing waterfront redevelopment.

고체산화물 연료전지를 위한 통합 디젤 개질 시스템 사전 연구

윤상호(Sangho Yoon),이상호(Sangho Lee),배중면(Joongmyeon Bae) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5

Diesel-based solid oxide fuel cell systems have various advantages. However, diesel reforming poses several difficulties of carbon deposition, sulfur poisoning, fuel delivery. Fuel delivery issue affects the mixing of the reactants that can cause the carbon deposition on the reforming catalyst, and sulfur compounds in fuels and low hydrocarbons in the reformate induce the degradation of fuel cell performance due to the sulfur poisoning and carbon deposition at the anode side. In this paper, diesel reforming system is investigated for solving the several diesel reforming issues. Diesel reforming system is composed 3 reactors which are the diesel reformer, desulfurizer, and post-reformer. Diesel is atomized by ultrasonic injector for diesel delivery. As the result, integrated diesel fuel processing system has been successfully operated using commercial diesel as a fuel.

Simulation을 통한 Roll over Prevention System 개발에 관한 연구

윤상호(Sangho Yoon),구본경(Bonkyung Koo),고유석(Youseok Kou),정지현(Jihyun Jung),김동신(Dongshin Kim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-

Purpose of this work is to develop the rollover prevention system with UCC that is consisted of CDC and ESP. CDC system has roll control logic to reduce roll angle when a driver performs cornering event. ESP system needs the additional control logic for rollover prevention because it is ultimately developed to enhance vehicles' stability by controlling vehicle's yaw characteristic. For this reason, it is also required to investigate how vehicles' rollover occurs. On this study. simulation is performed to figure out what kind of factors directly causes vehicles' rollover. Simulation has a lot of advantages in this case. because real car test for rollover is so dangerous that a lot of safety equipment is required and too many sensors are needed to look into many factors which have possibility to cause rollover. In this paper, the effects of CDC and ESP for rollover prevention are studied. And also, the advantages of sensing eventual rollover and the importance of the additional rollover control function in UCC control logic are inferred in the result.

도서지역의 개발계획연구 - 덕적도를 사례로 -

윤상호(SangHo Yoon) 한국지역개발학회 2000 韓國地域開發學會誌 Vol.12 No.2

There are the two-island comprehensive development plans that have been experimented since 1988. The major contents are the infra-facilities construction, so the quality of life increase a little. Then the accessibilities toward the island will be settled down that the tourists may visit the island easily. Then the type is needed to the rational island develop in future. So this thesis attempts to find out the reasonable type and analyses the Deok Jeok island that is one of the most potential islands. The Govt. makes the plan to invest 10,800 millions to the Deok Jeok island in 1998-2007 yrs. But we have the research to find out other potentials, so concluded that at least 23,300 millions must be invested to there. This study aims to analyse the investment to the Deok Jeok island. Therefore we make the basis to the development toward islands that we can apply to other islands.

우리에게 아파트의 의미는 무엇일까? : Q 방법론의 적용

윤상호(Yoon Sangho),박성용(Park Seong Yong) 한국상품학회 2007 商品學硏究 Vol.25 No.1

  “과연 우리에게 아파트의 의미는 무엇일까?” 이러한 주제에 대한 의미를 이해하기 위해서는 소비자의 주관적 반응을 측정하여야 한다. 소비자의 주관적인 반응을 Q방법론적 진술문을 통해 객관화시켜서 소비자 유형을 알아보는 것이 이 논문의 주요 목적이다.<BR>  기존의 이론적 접근법은 주택가치를 주로 주거가치와 투자가치의 이분법적인 방법을 사용하였다. 이 논문에서는 기존의 연구를 바탕으로 이성적인 요인들과 감성적인 요인들로 나누어 주택가치 관련 문항들을 개발하였다. 이성적인 요인들과 감성적인 요인들로 구성된 34개의 주택가치 관련된 진술문을 Q방법으로 분석한 결과, 아파트를 소유 주거하는 사람들을 3가지 유형인 가치목적 추구형, 주거목적 추구형, 투자목적 추구형으로 나눌 수가 있었다. 이들 유형들 간의 상관관계는 높았고, 아파트의 경우에는 동일하게 인식하는 항목들의 경우에는 이성적인 요인들이 감성적인 요인들보다 훨씬 높음을 보여주었다. 구매가치, 주거가치, 자산가치의 유형별 평균에 있어서는 차이가 나지는 않지만, 회귀분석을 이용한 증분분석에서는 그 영향이 나타난다.   "What does apartment mean to us?" In order to understand these kinds of topics, we need to measure the subjective responses of consumers. The main purpose of this paper is to identify the consumer taxonomy by objectivity of subjectivity of human minds. This can be achieved by Q-methodology.<BR>  Previous research studies identified the value of housing as the combination of dwelling value and asset value. In this study, we develop 34 Q-sample cognitive and emotional questions related to housing value. The results show that there are three types of consumers: perceived-value-seeking, dwelling-value-seeking, asset-value-seeking type. These three types of consumers have high correlation so that we can conclude that people have very similar views on apartment. In particular, cognitive aspects are more emphasized that emotional aspects. Further analysis on the determinants of overall satisfaction of housing produce very similar results as Q-methodology results.

머신러닝을 이용한 동위원소 클러스터의 단동위질량 결정 방법

윤상호(Sangho Yoon),나승진(Seungjin Na),백은옥(Eunok Paek) 한국정보과학회 2021 한국정보과학회 학술발표논문집 Vol.2021 No.6