• 전기전자학회논문지
• /
• 제23권2호
• /
• pp.469-473
• /
• 2019

신재생 발전 자원의 경우 기존 설비와 다르게 기후 환경적 요소에 의해 공급능력이 결정되기 때문에 신재생 발전 자원의 공급능력 산정을 위해 실효공급용량 계산이 필요하다. 본 연구에서는 신재생 발전 자원의 공급능력 추정 방법에 대한 국내 외 사례조사와 국내 제주 계통의 데이터를 이용한 검증 내용을 담고 있다. 본 논문은 신재생 발전 비율이 높은 제주계통을 별도로 신재생 발전 자원의 실효 공급능력을 추정한 것으로 기존 국내 연구와 차별성이 있다.

• 한국간호교육학회지
• /
• 제28권3호
• /
• pp.305-316
• /
• 2022

Purpose: The purpose of this study was to construct a structural equation model of organizational commitment in hospital nurses based on a job demands-resources model and to confirm the moderating effect(s) according to the nurses' generation. Methods: The model was constructed of the exogenous variables of social support, emotional intelligence, emotional labor, and job conflict and the endogenous variables of burnout, job engagement, and organizational commitment. The participants were 560 hospital nurses working in 3 general hospitals. Data were collected from August 1 to September 30, 2021, and analyzed using SPSS Window 23.0 and IBM AMOS 23.0. Results: The strongest factor directly influencing hospital nurses' organizational commitment was social support. In a multiple group analysis, nurses' generation had a partial moderating effect. In a generation-specific analysis, the Z generation group was higher than the X and Y generation groups in the variables of emotional labor and burnout related to organizational commitment. Conclusion: Based on the findings of this study, to improve hospital nurses' organizational commitment, social support is needed as an important management strategy. At the organizational level, we need to develop ways to improve organizational commitment by reducing the emotional labor and burnout of Generation Z.

• 한국콘텐츠학회논문지
• /
• 제8권1호
• /
• pp.228-235
• /
• 2008

본 논문에서는 모니터링 에이전트를 통한 웹 서비스 선정 과정의 자동화를 위해 프록시 클라이언트 코드를 자동 생성하는 방안을 제안한다. 본 논문의 기법은 템플릿 룰에 따라WSDL문서의 특정 엘리먼트의 속성 값을 가져옴으로써 서비스 사용자에게 프록시 클라이언트의 소스 코드를 제공할 수 있게 해 준다. 즉 XSLT 스크립트 파일은 클라이언트 코드 생성시 필요한 동적 호출 인터페이스 모델의 코드 골격을 제공한다. 이러한 코드 자동 생성 기법은 이동 에이전트 기술과 더불어 선정 아키텍처에서의 기아 상태를 해결하기 위해 필요하다 선정 서비스를 제외하더라도 검색 결과상의 모든 서비스들에 대한 요청 HTTP 메시지를 발생시키기 위해서는 코드 자동 생성 기법이 필요하다. 생성된 프록시 클라이언트 프로그램 코드는 검색된 서비스들에 대한 더미 메시지를 발생시킨다. 본 논문에서 제시한 클라이언트 코드 생성 방안은 자동 생성 프로그래밍 영역에서의 적용 가능성을 보여준다.

• 한국수소및신에너지학회논문집
• /
• 제33권5호
• /
• pp.557-565
• /
• 2022

The effect of flow configuration in ammonia-fed solid oxide fuel cell are investigated by using a three-dimensional numerical model. Typical flow configurations including co-flow and counter-flow are considered. The ammonia is directly fed into the stack without any external reforming process, resulting in an internal decomposition of NH3 in the anode electrode of the stack. The result showed that temperature profile in the case of counter-flow is more uniform than the co-flow configuration. The counter-flow cell, the temperature is highest at the middle of the channel while in the case of co-flow, the temperature is continuously increased and reached maximum value at the outlet area. This leads to a higher averaged current density in counter-flow compared to that of co-flow, about 5%.

• 정보관리학회지
• /
• 제39권3호
• /
• pp.217-240
• /
• 2022

코로나19로 인해 비대면 요소가 중요해지면서 메타버스가 사회적 주목을 받게 되었고, MZ세대는 공공도서관의 주 이용 세대가 되었다. 이러한 흐름에 비추어 볼 때, 공공도서관의 주 이용자인 MZ세대를 위한 서비스를 도입할 필요가 있으며, 사회적 발전에 맞춘 서비스를 제공할 필요가 있다. 따라서 본 연구는 MZ세대를 중심으로 설문조사와 반구조화 면담을 통해 메타버스에 대한 인식을 조사한 후, 공공도서관에서 이용자를 대상으로 한 메타버스 적용에 대한 방안을 제안하였다. 연구의 결과에 따라 본 연구에서 제언한 공공도서관의 메타버스 도입을 위한 방향은 첫째, 메타버스에 대한 기초적인 교육과 정보 제공 둘째, 소통을 바탕으로 한 커뮤니티를 장점으로 한 서비스의 제공. 셋째, 시공간의 제약을 받지 않는 프로그램의 제공 넷째, 메타버스에 대한 사서들의 전문성 향상을 통한 사서에 의한 서비스가 제공. 다섯째, MZ세대를 위한 서비스 제공이다.

• 한국수소및신에너지학회논문집
• /
• 제33권6호
• /
• pp.707-714
• /
• 2022

Hydrogen production using solid oxide electrolysis cells (SOEC) is a promising technology because of its efficiency, cleanness, and scalability. Especially, high-power SOEC system has received a lot of attention from researchers. This study compared and analyzed the low-power and high-power SOEC system in term of economic. By using revenue requirement method, levelized cost of hydrogen (LCOH) was calculated for comparison. In addition, the sensitivity analysis was performed to determine the dependence of hydrogen cost on input variables. The results indicated that high-power SOEC system is superior to a low-power SOEC system. In the capital cost, the stack cost is dominant in both systems, but the electricity cost is the most contributed factor to the hydrogen cost. If the high-power SOEC system combines with a nuclear power plant, the hydrogen cost can reach 3.65 $/kg when the electricity cost is 3.28 ¢/kWh and the stack cost is assumed to be 574 $/kW.

• 말소리와 음성과학
• /
• 제4권4호
• /
• pp.29-35
• /
• 2012

The purpose of this study was to measure the first two vowel formants of the forty male and female speakers (twenty young vs. old male speakers and twenty young vs. old female speakers) from the Buckeye Corpus of Conversational Speech and to examine the vowel formant changes across two generations (younger vs. older). The results indicated that the vowel space of the younger generation (in their thirties or less) shifted to the lower left position compared to those of the older generation (in their forties or more) in both male and female speakers. When the results were compared to those of Peterson & Barney (1952), it appears that differences can be found in the size of the vowel spaces through time.

• 대한본초학회지
• /
• 제23권3호
• /
• pp.103-112
• /
• 2008

Objectives : This research aimed to study the cytotoxicity and immuno modulating activity of fermented Artemisia argyi Lev. et Vant.(Compositae). Methods : Effect of fermented Artemisiae Argyi Folium extracts, which were fermented by Sacchromyces cerevisiae STV89(AFS), on cell viability, generation of ROS within cells, generation of NO and the level of cytokines($TNF-{\alpha}$ and IL-6) was measured using mouse macrophage RAW 264.7 cell. Results : 1. Result of MTT assay conducted to verify the cytotoxicity of fermented Artemisiae argyi folium extract illustrated that, when fermented Artemisiae argyi folium extract was processed for each concentration, there was no excessive induction of cytoxicity in the RAW 264.7 cell. 2. Fermented Artemisiae Argyi Folium extract increased the generation of H2O2 within RAW 264.7 cell as well as significantly increased inhibition of generation of H2O2 in macrophage induced by LPS. 3. Fermented Artemisiae Argyi Folium extract inhibited generation of NO in RAW 264.7 cell, and significantly inhibited increase in generation of NO of macrophage induced by LPS. 4. Fermented Artemisiae Argyi Folium extract, AFS has significantly reduced the increase in the generation of $TNF-{\alpha}$ above 10 ${\mu}g/mL$. 5. Fermented Artemisiae Argyi Folium extract, AFS has significantly reduced the increase in generation of IL-6 above 50 ${\mu}g/mL$. Conclusions : AFS fermented extract produced from Artemisiae Argyi Flium, have increased generation of ROS and reduced generation of NO in RAW 264.7 cell without excessively inducing cytotoxicity of RAW 264.7 cell. In addition, they displayed significant immuno modulating activities including inhibition of generation of $TNF-{\alpha}$ and IL-6 in macrophage, induced by LPS.

• 패션비즈니스
• /
• 제25권3호
• /
• pp.1-16
• /
• 2021

In December 2019, when the novel coronavirus (nCoV) was identified in Wuhan, Hubei, China, the number of people belonging to post-90s generation among about 42,000 medical staffs personnel supporting Hubei was 12,000 or more, accounting for about 33.3% of the total number of personnel. The term "post-90s generation" generally indicates young people born from 1990 to 1999. The study scope is the 1990-2020 period between the birth of post-90s generation and present. Literature and empirical studies are performed. Generational characteristics and fashion trends shown only by post-90s generation through precedent studies and reports are as follows: First, generational characteristics of post-90s generation can be categorized into the following three characteristics: "sang wenhua", "collective loneliness", and "diversified identity". Second, fashion trends of the post-90s generation can be categorized into the following three characteristics: "new Chinese style fashion", "masstige fashion", and "de-labeling fashion". The above results show that the post-90s generation uses "culture" and "me" as keywords. Further, the above trend is consequently divided into the following two characteristics: "diversification" and "individualization". This is because the post-90s generation is directly affected by the reform and opening and the 9-year compulsory education policy of China compared to the previous generations; hence, these people are greatly influenced by Western culture and fashion as well as their own culture and fashion. It refers having a tendency to express one's individuality with a variety of tastes and styles.

• 패션비즈니스
• /
• 제2권2호
• /
• pp.11-25
• /
• 1998

The purpose of this paper is to investigate how the young fashion which maintains a large share of fashion market emerged in the 1960s, its characteristics and what its influences on the contemporary fashion industry are. In particular, I am going to consider the significance of the young fashion by looking at the formation of niche market, the emergence of mass market for fashion, the expansion of aesthetic categories. we will be able to see the 60s young fashion of the young generation who emerged as new consumers in mass consumer culture exerted important influences on the contemporary fashion industry. First, the counterculture of young generation who rebeled against the uniformity of mass production helped the formation of new niche market. Second, the young fashion which pursued the lower prices for fashion made a big contribution to the popularization of fashion. The young generations tendency to demand new things and rapid change coincided with that of inexpensive popular fashion people can buy and change more easily than expensive high fashion. Lastly, the playful tendency of the young fashion expanded the aesthetic boundaries of the clothing, going beyond the uniformity of modernism with the emergency of diverse fashion materials - fabric and textiles - enable by technological development and the miniaturization of forms as revealed in mini skirt.