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패트리 넷을 통한 SOFA / DCUP의 동적 컴포넌트 업데이트에 대한 상호관계 분석
김천호(ChunHo Kim),정화영(HwaYoung Jeong),송영재(YoungJae Song) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅱ
기존의 SOFA(SOFtware Appliances)형의 컴포넌트에서 DCUP(Dynamic Component UPdating)통해 컴포넌트 조립이 가능하다. 이에 대해 비동기적이고 동적 시스템에 적합한 패트리 넷을 이용하여 컴포넌트의 동적업데이 시 기존 컴포넌트와의 상호작용과 각 인터페이스에 대한 프로세스의 흐름을 정형적으로 정의하고 설계상의 모호성을 줄일 수 있도록 하였으며 보다 나은 동적 업데이트의 최적화를 위한 기반을 제공한다.
Immunomodulatory Activity of Type-4 Resistant Starch in the Mesenteric Lymph Nodes of Rats
Youngju Song,Chunho Bae,Dongho Woo,Yunjung Kim,박태선 한국식품영양과학회 2010 Journal of medicinal food Vol.13 No.1
We evaluated the immunomodulatory activity of type-4 resistant starch (RS) in mesenteric lymph nodes (MLNs) using a rat model. Sixteen male Sprague-Dawley rats were fed either a cellulose diet or an RS diet (RSD) for 4 weeks. Serum immunoglobulin A levels, as well as the CD4+ T cell population and the ratio of CD4+/CD8+ T cells in the MLNs of rats, were significantly elevated by replacing cellulose with RS in the diet. The survival rate of concanavalin A (Con A)-stimulated MLN lymphocytes and interleukin-4 secretion from the Con A-stimulated MLN lymphocytes were significantly increased in rats fed RSD. These results indicate that type-4 RS might ameliorate allergic inflammation in the MLNs of rats through an increased CD4+ T cell population and enhanced differentiation of MLN lymphocytes into type-2 T cells.
동물병원의 서비스품질과 고객만족, 재이용의도의 관계 분석 - 서울지역 동물병원 이용자를 중심으로 -
장동헌 ( Dongheon Jang ),송춘호 ( Chunho Song ),김중기 ( Junggi Kim ) 전북대학교 농업과학기술연구소 2016 농업생명과학연구 Vol.47 No.1
The Korean society is growing interests into companion animals with a deepening sense of alienation and economic growth from the aging population and increasing single-person households. The animal clinics and the medical industry have been advanced on a continuous basis based on such growing interests, but with intensifying competitions among the animal clinics. Lately, researchers` interests such as service quality, customer satisfaction and revisit intention gradually increase in korea pets industry. This study analyzed the impacts of the service quality for the animal clinic clients on customer satisfaction and the intention to revisit where the competitions over service is getting intensified among the animal clinics. According to the analysis, the service quality for the clients of the animal clinics had a positive impact on customer satisfaction, and customer satisfaction had a positive impact on the intention to revisit. Therefore, the animal clinics are required to improve their services as a key element to keep competing with others and to establish a positive relationship with customer satisfaction and revisit based on the improved services.
농촌체험의 서비스품질이 고객만족과 추천의도에 미치는 영향
Jieun Cha,Sunghwan Yun,Junggi Kim,Chunho Song,Dongheon Jang 전북대학교 부설 휴양및경관계획연구소 2015 휴양및경관연구 (J East Asian Landscape Studies) Vol.9 No.3
농촌체험의 관심과 체험이 증가되는 상황에서 농촌체험의 지속성과 경쟁력의 확보 차원으로 서비스품질이 중요해지고 있다. 이 연구는 농촌체험을 경험한 서울지역 소비자를 대상으로 서비스품질과 고객만족, 고객만족과 추천의도 간의 관계를 분석하였다. 설문분석은 총 234부이며, 빈도분석, 신뢰도분석, 확인적 요인분석, 가설검정을 하였다. 분석결과는 다음과 같다. 첫째, 신뢰도의 크론바흐 알파값은 0.6 이상, 타당도의 요인적재량은 0.7 이상, 평균분산추출은 0.5 이상이 었다. 둘째, 확인적 요인분석의 모형적합도는, CMIN/DF, GFI, TLI, CFI, RMSEA이 전반적으로 적합하였다. 셋째, 가설검정의 결과, H1의 H1-2(유형성)와 H1-3(응답성)을 제외한 H1-1(신뢰성), H1-4(확신성), H1-5(공감성)는 고객만족 에 긍정적인 영향을 주었고, H2는 고객만족이 추천의도에 긍정적인 영향을 주었다. 따라서 농촌체험의 서비스를 이용자와 제공자 간의 상호작용으로 볼 때, 서비스품질에 대한 지속적인 개선이 필요할 것이다. Amid the growing interest and engagement in the rural experience, service quality is becoming more important to securing its sustainability and competitiveness. This study analyses the relationship among service quality, customer satisfaction, and recommendation intention for rural experience consumers in Seoul. In all, 234 survey forms were analyzed, and frequency analysis, reliability analysis, confirmatory factor analysis (CFA), and hypothesis testing were carried out. Several findings were produced. First, the Cronbach’s alpha coefficient of reliability was over 0.6, the factor loading of validity was over 0.7, and the average variance extracted (AVE) was over 0.5. Second, , CMIN/DF, GFI, TLI, CFI, and RMSEA were generally appropriate for the model fit test of confirmatory factor analysis. Third, the results of hypothesis testing showed that H1-1 (reliability), H1-4 (assurance), and H1-5 (empathy) had positive effects on customer satisfaction and that customer satisfaction had a positive effect on recommendation intention in H2. Therefore, service quality must be continuously improved in the interactions between rural experience users and providers.
매트릭스 기법을 응용한 시스템 인터페이스 관리 방안 연구
정경렬(Chung Kyungryul),박철호(Park Chulho),최준호(Choi Chunho),송선호(Song Sunho) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
It is important to manage internal and external interfaces in a system integration. As there are many of related multi-disciplinary engineers and high level complexity in big and complex project, it is difficult that carrying out interfaces management by consistent method. We study the method that represent efficiently system interfaces by matrix structure. And we suggest the way to identify system interfaces and trace interfaces between components using Interface Analysis Matrix and Interface Control Document.
정경렬(Chung Kyungryul),박철호(Park Chulho),최준호(Choi Chunho),송선호(Song Sunho) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10
System requirements (SRs), which describe the technical attributes to be satisfied by a desired system, serve as a fundamental guideline for system development. Standard methods and processes to define SRs are suggested in systems engineering literature. But in practice, we encounter many difficulties in defining and managing SRs since there are few experiences on development of complex systems in accordance with systems engineering processes of development. In this paper, to expanding SRs management experiences in a working-level, we reviewed problems occured in SRs defining process in 'Urban MAGLEV Train Project', and analyzed our activities to adjust and solve the problems.
도시형 자기부상열차의 기능분석을 이용한 사양간 추적성 도출 연구
정경렬(Chung Kyungryul),박철호(Park Chulho),최준호(Choi Chunho),송선호(Song Sunho) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Recently, a railroad system has a big and complicated structure of specification. Therefore, traceability between specification need to be identified for design change management and this is many engineer"s concerns. Traceability means technical relationship. This is to trace other specification or component connect with relevant problem in case some problem should be examined. Traceability between functional specification can be proved through functional analysis essentially. This study will introduce an application method of functional analysis in the case of practical use project of MAGLEV train. And we propose the guide to identify traceability between function through functional analysis.