• 제목/요약/키워드: Smart UPS

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The study on Analysis of factors of restaurant start-ups using big data

  • JINHO LEE;Sung woo Park;Gi-Hwan Ryu
    • International journal of advanced smart convergence
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    • 제12권3호
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    • pp.163-167
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    • 2023
  • The restaurant industry is an industry with low entry barriers, and furthermore, it is an indispensable industry in life. However, for the restaurant industry, it is necessary to start a business considering many factors. In particular, the comparative group for each restaurant industry is different, and the commercial area analysis should be analyzed differently. Moreover, counseling for restaurant start-ups is still sticking to how to start a restaurant by meeting with each franchise supervisor or counselor. Therefore, a restaurant start-up chatbot is needed for prospective restaurant founders, and a food tech chatbot is needed to collect basic data. Therefore, in this study, factors for restaurant start-ups were divided into youth, preliminary start-ups, menus, taste, and food. In the case of restaurant start-ups with low entry barriers, it was confirmed as the most preferred start-up by young people. However, indiscriminate restaurant start-ups not only increase the closing rate but also have a significant impact on household debt, so accurate consulting should be used to lower the closing rate and increase the success rate. Furthermore, theories and measures for food technologies such as chatbots should be further developed to obtain accurate information on franchise start-ups.

고효율 운전이 가능한 지능형 무정전 전원장치에 관한 연구 (A Study of Smart Uninterruptible Power Supply Capable High Efficiency Drive)

  • 엄태욱
    • 조명전기설비학회논문지
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    • 제27권5호
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    • pp.61-66
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    • 2013
  • In this paper, a control scheme with the capability of high efficiency, which is realized by predicting the conditions of a load power and an input power, is proposed for the uninterruptible power supply (UPS). Generally, on-line UPS system supplies a constant voltage and a constant frequency (CVCF). However, the efficiency of the On-line UPS system can be reduced due to the switching losses of semiconductor devices during the power conversion. The these losses are improved by the proposed smart UPS with the high efficiency drive system, which is realized by analysing and predicting the conditions of a load power and an input power.

The Effect of Satisfaction of Entrepreneurship Education on Successful Entrepreneurship

  • Jun-Young Lee;Sung-Ho Bang;Ki-Hwan Ryu
    • International Journal of Advanced Culture Technology
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    • 제12권1호
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    • pp.276-280
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    • 2024
  • Recently, many policies and fairs have been made in relation to start-ups. In addition, various start-up education for prospective start-ups is being conducted in various ways. Therefore, these days, the number of prospective start-ups who receive such information and start-up education is increasing. Nevertheless, more and more start-ups are still unsuccessful and close their businesses within months or years. In particular, start-ups who continue to maintain their start-ups also see the unfortunate reality of start-ups that find other jobs in various support systems and related policies and relationships that they cannot quit even if they want to. In this study, based on previous studies, factors for satisfaction with entrepreneurship education will be set and a questionnaire will be conducted for prospective entrepreneurs who have completed education at a startup education center in Seoul. The survey results are intended to verify their reliability and validity through empirical analysis. The SPSS statistical package will be used for analysis, and a total of 200 copies of the questionnaire will be distributed and collected. In this study, it was confirmed that the higher the satisfaction with entrepreneurship education, the better the successful entrepreneurship. In addition, I think that further developing various policies or detailed curriculums for entrepreneurship education will be of great help to prospective entrepreneurs taking entrepreneurship education.

The Study of Restaurant Start-up Education on Restaurant Start-up : Focus on Entrepreneurship

  • Jun-Young Lee;Sung-Ho Bang;Gi-Hwan Ryu
    • International Journal of Internet, Broadcasting and Communication
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    • 제15권2호
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    • pp.102-111
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    • 2023
  • We would like to find out how restaurant start-up education affects restaurant start-ups. Recently, as low barriers to entry and endemics are approaching, more and more people want to start a restaurant business. However, while the market size of restaurant start-ups increases due to the high youth unemployment rate and changes in the social population structure, the probability of failure of start-ups is increasing due to the high competition rate. Therefore, this study aims to examine whether restaurant start-up education affects restaurant start-ups through entrepreneurship. This study conducted a survey on prospective start-ups. After that, demographic analysis and multiple regression analysis were performed using the SPSS 23.0 program. As a result, it was found that entrepreneurship had an effect on restaurant start-ups. However, in future studies, more research is needed on the direction of improving and developing restaurant start-up education.

The study of the restaurant start-up chatbot system using big data

  • Sung-woo Park;Gi-Hwan Ryu
    • International Journal of Internet, Broadcasting and Communication
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    • 제15권3호
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    • pp.52-57
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    • 2023
  • In the restaurant industry, along with the fourth industry, there is a food technology craze due to IT development. In addition, many prospective restaurant founders are increasing due to restaurant start-ups with relatively low entry barriers. And ChatGPT is causing a craze for chatbots. Therefore, the purpose of this paper is to analyze factors for restaurant start-ups with big data and implement a system to make it easier for prospective restaurant start-ups to recommend restaurant start-ups that suit them and further increase the success rate for restaurant start-ups. Therefore, this paper is meaningful in analyzing the start-up factors desired by prospective restaurant founders with big data, turning them into text, and furthermore, designing and studying the start-up factors shown as big data into a restaurant start-up chatbot system.

Suggested social media big data consulting chatbot service for restaurant start-ups

  • Jong-Hyun Park;Jun-Ho Park;Ki-Hwan Ryu
    • International journal of advanced smart convergence
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    • 제12권3호
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    • pp.68-74
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    • 2023
  • The food industry has been hit hard since the first outbreak of COVID-19 in 2019. However, as of April 2022, social distancing has been resolved and the restaurant industry has gradually recovered, interest in restaurant start-ups is increasing. Therefore, in this paper, 'restaurant start-up' was cited as a key keyword through social media big data analysis using TexTom, and word frequency and cone analysis were conducted for big data analysis. The keyword collection period was selected from May 1, 2022, when social distancing due to COVID-19 was lifted, to May 23, 2023, and based on this, a plan to develop chatbot services for restaurant start-ups was proposed. This paper was prepared in consideration of what to consider when starting a restaurant and a chatbot service that allows prospective restaurant founders to receive information more conveniently. Based on these analysis results, we expected to contribute to the process of developing chatbots for prospective restaurant founders in the future

기업가적 대학과 스마트전문화에 기반한 대학의 창업환경 조성연구 - 테크니온공대, 히브리대학교 사례를 중심으로 - (A study on galvanizing of Start-ups atmosphere based on Smart specialization and the entrepreneurial university - Technion institute of Technology, Hebrew University -)

  • 한정희
    • 벤처창업연구
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    • 제8권3호
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    • pp.205-215
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    • 2013
  • 창업을 통한 일자리 창출은 지구상의 대부분 국가들의 중요한 이슈이다. 창업분위기 조성에서 있어 대학은 중요한 역할을 한다. 이스라엘 대학들은 기술이전과 사업화 및 창업에서 우리나라 대학들과 비교해 볼 때 성공률이 월등히 높다. 본 연구에서는 이와 관련한 이스라엘 대학의 특성을 찾아, 우리나라 대학들에게 적용될 수 있는 방안을 제공하는 것이 본 연구의 목적이다. 이스라엘 대학들은 자체 전문가를 보유 기술이전부서의 팀을 갖추고 있으며, 유망기술의 경우 미리 기술이전을 통한 창업자금을 지원하여 창업환경을 조성한다. 기술이전 사업화 및 창업 단계마다 체계적으로 차별화된 집중지원 방법이 지원된다. 또한, 대학은 특정 기술 분야에 집중, 기술사업화 및 창업 성공 이후에야 사용료 수입을 얻는다. 일정부분의 위험을 대학과 창업파트너와 공유하고 있다. 이스라엘의 창업 성공이 높은 것은 대학의 단계별 차별적 지원과 대학과 기업이 위험을 공유하기 때문이라 판단된다.

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하이브리드 연료전지 UPS 시스템 개발 (Development of Hybrid Fuel Cell UPS System)

  • 현덕수;장민호;김태신;오세웅
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2009년도 추계학술대회 논문집
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    • pp.235-235
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    • 2009
  • 본 연구는 친환경 신새생 에너지를 이용한 전력 시스템을 개발함으로써 전력 IT인 Smart Grid 기술 활용과 더불어 예기치 못한 정전으로부터 중요한 전자 장비를 보호하는 UPS 기능을 갖는 친환경 3.0kW급 하이브리드 연료전지 UPS 시스템을 개발하는 것이다. 이를 위하여 시뮬레이션 기법을 이용하여 소형 경량화에 따른 구성 부품 배치 합리화 및 발생열 최적화 설계를 도출하였으며, 연료전지용 장수명 밀폐형 Ni-MH전지, 고효율 전력변환기, 하이브리드 PMS의 설계 및 제작과 개발된 3kW급 하이브리드 연료전지 UPS 시스템 기능 및 성능 평가를 공인 기관에서 검증받았다. 본 연구를 통하여 개발된 연료전지용 장수명 100Ah급 밀폐형 Ni-MH전지는 밀폐화와 더불어 장수명화 및 저온 방전 특성이 우수한 뿐만 아니라 KS규격을 모두 만족하였으며, 내구성도 DOD100%에서 1,093cycle의 결과를 얻을 수 있었다. 또한, 전지 설계 및 제작 기술뿐만 아니라 양산화 관련 기술들이 개발되어 향후 고용량, 고출력, 장수명의 축전지가 필요로 하는 분야에 적용될 수 있는 기반이 마련되었다. 또한 고효율 전력 변환기 및 연료전지과 축전지를 조절하는 PMS을 탑재한 소형 경량화 된 친환경 IT제품의 이미지를 구현하였다.

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Proposed a consulting chatbot service for restaurant start-ups using social media big data

  • Jong-Hyun Park;Yang-Ja Bae;Jun-Ho Park;Ki-Hwan Ryu
    • International Journal of Internet, Broadcasting and Communication
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    • 제15권3호
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    • pp.1-7
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    • 2023
  • Since the first outbreak of COVID-19 in 2019, it has caused a huge blow to the restaurant industry. However, as social distancing was lifted as of April 2022, the restaurant industry gradually recovered, and as a result, interest in restaurant start-ups increased. Therefore, in this paper, big data analysis was conducted by selecting "restaurant start-up" as a key keyword through social media big data analysis using Textom and then conducting word frequency and CONCOR analysis. The collection period of keywords was selected from May 1, 2022 to May 23, 2023, after the lifting of social distancing due to COVID-19, and based on the analysis, the development of a restaurant start-up consulting chatbot service is proposed.

창업기업의 품질경영시스템 프로세스 실행이 차별화 경쟁우위 및 경영성과에 미치는 영향: 기업 규모의 조절효과 (Impact of quality management system process implementation on differentiated competitive advantage and management performance: the moderating effect of company size)

  • 정헌배;이현우
    • 디지털융복합연구
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    • 제18권6호
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    • pp.225-235
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    • 2020
  • 본 연구의 목적은 창업기업의 품질경영시스템 실행이 차별화 경쟁우위 및 경영성과에 미치는 영향을 확인하고, 품질경영시스템 실행과 차별화 경쟁우위의 관계에서 기업 규모의 조절효과를 검증하는 것이다. 창업기업을 대상으로 설문을 진행하여 259부를 SmartPLS 2.0을 사용하여 분석하였다. 연구결과 첫째, 리더십, 기획, 지원, 운영, 성과평가, 개선은 차별화 경쟁우위에 긍정적인 영향을 미치며, 조직의 상황은 긍정적인 영향을 미치지 못하는 것으로 나타났다. 둘째, 차별화 경쟁우위는 재무적 및 비재무적 성과에 긍정적인 영향을 미치는 것으로 나타났다. 셋째, 기업 규모는 리더십, 지원, 운영, 개선과 차별화 경쟁우위의 관계에서 조절 역할을 하는 것으로 나타났다. 연구의 결과는 품질경영시스템이 창업기업의 품질을 개선하여 경영성과에 긍정적인 영향을 준다고 해석할 수 있다. 그리고 품질경영시스템을 실행할 때 조직의 상황과 기업 규모가 고려되어야 한다는 시사점을 준다.