• 제목/요약/키워드: Industry status

검색결과 2,709건 처리시간 0.034초

글로벌 위성 산업 동향 분석 및 미래 위성 기술 고찰 (Analysis of Global Satellite Industry Status and Consideration of Future Satellite Technologies)

  • 박종민;오대섭
    • 한국위성정보통신학회논문지
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    • 제12권3호
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    • pp.86-92
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    • 2017
  • 본 논문에서는 최근 글로벌 위성산업의 수익 현황을 토대로 위성산업 각 분야별 동향을 분석하고, 이러한 동향을 바탕으로 향후 예상되는 위성산업 분야의 전개 방향과 미래 기술개발을 고찰하였다.

Parameter Estimation by OE model of DC-DC Converter System for Operating Status Diagnosis

  • Jeon, Jin-Hong;Kim, Tae-Jin;Kim, Kwang-Su;Kim, Kwang-Hwa
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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    • 제4B권4호
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    • pp.206-210
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    • 2004
  • This paper deals with a parameter estimation of the DC-DC converter system for its diagnosis. Especially, we present the results of parameter estimation for the DC-DC converter model by the system identification method. The parameter estimation for the DC-DC converter system aims at the diagnosis of its operating status. For the operating status diagnosis of the DC-DC converter system, we assume that the DC-DC converter system is an equivalent model of the Buck converter and estimate the main parameter for on-line diagnosis. In addition, for verification of an estimated parameter, we compare a bode plot of the estimated system transfer function and measurement results of the HP4194 instrument. It is a control system analyzer for system transfer function measurement. Our results confirm that the main parameter for diagnosis of the DC-DC converter system can be estimated by the system identification method and that the aging status of the system can be predicted by these results on operating status.

진주실크 산업의 현황 (Current status of the silk industry in Jinju)

  • 장수현;이은진
    • 한국의류산업학회지
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    • 제24권5호
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    • pp.557-566
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    • 2022
  • This study aims to investigate Jinju silk companies, production items, and silk industry supporting projects from 2019 to 2021 in order to discuss the current status of the silk industry. The following are this study's methods: First, a list of Jinju silk companies that have been operating for the past three years (2019-2021) was prepared to investigate the current status of the Jinju silk industry. Second, an investigation was conducted into the representative products produced in Jinju over the past three years; this investigation was conducted using direct interview. Third, an investigation was conducted on the projects that supported the Jinju silk industry over the past three years, and the list of members of the Gyeongnam Textile and Jinju Silk Industry Cooperative Association-a facility of Gyeongsangnam-do Province, the Jinju City Hall brochure (2019), and the SMINFO(SMall business status INFOrmation System) were utilized for this purpose. The following are the results: First, Jinju silk companies are classified into four categories, namely weaving, dyeing, twisting, and designing companies. According to data from 2021, 83% (34 of 41) of silk companies were weavers. Second, the demand for solid fabrics has increased over the past three years. The demand for patterned jacquard fabrics in producing Hanbok and Western-style clothing has decreased. Third, support for the Jinju silk industry could be classified into five categories: support for the operation of silk research institutions, support for the diversification of Jinju silk, support for the promotion of Jinju silk, support for the operation of silk manufacturers, and others.

유해환경에 노출되기 쉬운 공장근로자의 건강관련 행동과 돼지고기 급여에 의한 영양소섭취 상태의 변화 (Health-Related Behaviors of Industry Workers Exposed to Unclean Work Environments and Changes in Nutritional Status in Response to Usual Pork Consumption)

  • 김미영;조경동;한찬규;이복희
    • 한국식품조리과학회지
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    • 제24권6호
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    • pp.861-870
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    • 2008
  • This study was conducted to evaluate the health status, life style, dietary habits and nutritional status of 44 industry workers that were routinely exposed to unclean environments while consuming 3 major pork dishes 2 times a week for 6 weeks. The health status, life style and dietary habits of the workers were investigated by a survey questionnaire, and the nutritional status was evaluated using the 24-hour recall method. Overall, the subjects reported that their health status was fairly good throughout the year, but that they felt dizziness and fatigue often. In general, the subjects did not exercise regularly and drank alcohol very often. The average daily energy intake increased from 1,708.3 kcal to 1,859.5 kcal without a change in the BMI or WHR when the respondents were fed pork dishes. However, the mineral intake did not differ significantly in response to the consumption of pork, although the Zn intake tended to increase. Moreover, the vitamin $B_1$, niacin, and E intakes increased after consuming pork(p<0.05), while the cholesterol intake decreased from 425.2 mg to 356.7 mg after eating pork(p<0.05). Additionally, both the fat intake and the PUFA intake increased after the consumption of pork with the intake of oleic, linoleic and linolenic acids increasing significantly(p<0.001). Finally, the intake of essential amino acids also increased significantly in response to the consumption of pork(p<0.01). Based on the results, regular consumption of pork dishes improved the nutritional status of industry workers without any adverse effect in terms of the intake of relative fat and cholesterol.

민간경비원의 법적 지위에 관한 비교연구 (Private Security comparative study on the legal status)

  • 서진석
    • 융합보안논문지
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    • 제14권1호
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    • pp.43-50
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    • 2014
  • 민간경비원은 특별한 법적 권한이 주어지지 않은 일반인과 동등한 법적 지위를 보유하고 있다. 그러나 민간경비산업은 그동안 업무영역의 확대를 가져와 제한적이지만 일부 법적 권한을 보유할 시기가 되었다는 주장이 있다. 이 연구에서는 일본 미국 등 주요국가의 경비원 법적 지위를 비교 분석하고 우리나라 민간경비원의 법적 지위에 관하여는 현행법인 경비업법상의 경비원의 법적 지위를 분석함으로써 우리나라의 민간경비원 법적 지위의 문제점을 도출하고 그에 대한 대안을 제안하는데 목적이 있다.

통계자료 조사를 통한 건설산업 현황 분석 연구 (Analytical Study of the Current Status of the Construction Industry Using a Survey for Statistical Data)

  • 김균태
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2009년도 추계 학술논문 발표대회
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    • pp.257-260
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    • 2009
  • With the current global financial crisis, Korea's economic situation involves a great deal of uncertainty. As the construction industry in Korea has traditionally been one of the country's strongest engines of economic development, it is crucial to understand its current status when establishing government policy or corporate goals. Utilizing a variety of statistical data related to construction that has been published in Korea, this study analyzes the current status and performance of the industry in terms of technological development. Although it was found that the construction industry in Korea is currently unstable due to the influence of the global financial crisis, it is now expected to recover quickly thanks to the increase in the number of construction contracts in foreign countries. In addition, when the performance of national research and development is realized, it is expected that new construction technologies will contribute to the recovery of the Korean construction industry. Despite the benefits of construction contracts in foreign countries, there are harmful practices in the industry that need to be addressed, including the excessively fierce competition among domestic construction companies.

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국내 육가공 산업의 현황과 전망 (Current status and prospect of Korea meat processing industry)

  • 김형상;진구복
    • 식품과학과 산업
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    • 제51권3호
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    • pp.229-237
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    • 2018
  • The objective of this paper is to understand the history, current status, and future of Korea meat processing industry. The numbers of businesses, employees and distribution in the domestic meat processing industry have steadily increased year by year. The trends of the Korea meat processing market are being launched with customized products due to rapid changes in consumer's lifestyle. Futhermore, the misconceptions against meat products have been still going on these days. Thus, meat products are perceived as a representative food for fast food and junk food to consumers, and growth of meat processing industry was slow-down due to concerns that some additives contained in meat products, such as phosphate and nitrite may not be good for human health, as World Health Organization (WHO) reported a couple of years ago. Therefore, future meat processing industries should be developed safe, and high quality consumer-oriented products. Finally, it will be able to achieve the unlimited development of the Korea meat processing industry by monitoring rapidly changing consumer needs, improving awareness and producing high quality meat products.