• The Microorganisms and Industry
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• v.13 no.3
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• pp.39-41
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• 1987

인간이 효소의 작용을 이용한 것은 꽤 오래된 일이나 실제로 효소라는 생명체내의 촉매를 자세히 알고 공업적으로 이용하기 시작한 전환점이라 할 수 있는 것은 지금부터 약 20년전 남짓의 효소를 세제공업에 이용하기 시작한 것이라 할수있다. 그후 전분산업등 효소를 사용하는 사업체는 급진적으로 증가하기 시작하였으며 여러분야에서 품질향상과 경제적 제품 생산을 위해, 그리고 의학계에서 임상용으로 또는 분석용도 생산되어 사용디고 있으며 그수는 앞으로도 계속하여 늘어날 추세에 있다.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1999.11a
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• pp.241-247
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• 1999

1980년대 후반 처음으로 LNG를 이용한 가스공급사업이 시작된 이래 급속한 도시 가스 산업의 성장으로 이제는 주요한 에너지원으로서 자리를 차지하고 있다. 현재 20개의 사업체가 지역적 독점권을 갖고 가스부문의 소매 유통활동을 하고 있다. 이제 에너지산업은 민영화와 탈규제화의 전 세계적인 추세속에서 그간 독점적 지위를 누려왔던 기존 산업은 커다란 변혁에 직면하고 있다.(중략)

• Survey Research
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• v.2 no.1
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• pp.73-86
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• 2001

In this paper. we conducted an empirical study to investigate the design and weighting effects on descriptive and analytic statistics. We compared the regression models using the design-based approach and the generalized estimating equations (GEEs) approach with the model-based approach through the design and weighting effects analysis.

• Journal of the Economic Geographical Society of Korea
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• v.17 no.3
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• pp.538-553
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• 2014

The aim of this study is to consider the degree of supply-demand balance in relation to the characteristics of retail sale activities in depopulation aging regions and the degree of aging by using simple regression analysis. The major findings of this study are as follows. While aging society, and aged society regions show a similar major retail sale industries, super-aged society shows fewer major industries and different industry composition. These characteristics are seen by different phenomenon and the background of the particular retail structure. The first one is that the number of employees per establishment increases when the aging phenomenon is not accelerated, and the annual sales per capita purchasing power decrease because their purchasing power becomes lower when the aging phenomenon is severe, but it also shows a high density of establishments because disperse location of establishment within depopulation aging region. The second one is the retail structure with high labor productivity in a aged and superaged society region. We identify the extent of demand and supply in general retails, fuel retails, food and beverage, and tobacco retails which represent the highest sales rates in depopulation aging region. As a result, general retails are seen as 'supply-demand balance region' in aged and super-aged society, fuel retail sales in aged and super-aged society which generally shows less sales, and food and beverages, and tobacco retails in super-aged society. The higher the degree of aging is, the less the regional differences in the gap between demand and supply is. This is because the difference in purchasing power between these regions is small.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.5
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• pp.2821-2830
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• 2014

This study was carried out to define gazelle industry through preceded research for gazelle firm & gazelle region, in order to discover high-growth industries. Gazelle industry is 'employees per company is more than ten people, and over the past five years, within top 10% by Birch employment growth index'. According to the definition of gazelle industry, Chungnam gazelle 105 industries were chosen. Then, analyzed whether Chungnam gazelle industries has competitiveness compared with nation and each city of Chungnam. In addition, typology to industrial development stage was devised by developing of business scale quotient(BQ) and industrial growth rate(IG). And development strategies of Chungnam gazelle industries was proposed case by industrial development stage.

• Journal of Digital Convergence
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• v.17 no.3
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• pp.79-92
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• 2019

This study analyzes the effects of freight transportation income, capital, asset, non-operating expenses, and debt ratio on the debts of inner port freight transportation businesses through the GLS of panel regression analysis and the estimation of fixed effects model. The factors and hypotheses were established through a theoretical background review, and the financial statement and profit and loss data of inner port freight transportation businesses for 10 years from 2006 to 2015 were analyzed. The results showed that assets had positive effects on debts, and negative effects on capital, non-operating expenses, and debt ratio, but no effect on freight transportation income. This result empirically demonstrates the tendency of inner port freight transportation businesses to secure assets by increasing debts, creation of debt reduction leverage effect using non-operating expenses such as interest expenses through bank borrowing, and the adoption of management characteristics and financial operation method to lower the debt ratio by reducing capital more than debts. In future studies, it is necessary to analyze coastal port freight transportation business by industry (oil tankers, cargo ships, and barge ships), and regions such as East, West and South sea.

• Proceedings of the Safety Management and Science Conference
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• 2012.11a
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• pp.499-506
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• 2012

본 연구는 통계청(2009-2010)의 국가 산업 표준을 기본으로 생애주기를 고려한다. 생애주기에 대한 변수는 경제활동인구와 사업체 동향을 분석하여 실시하며 이에 따른 자격은 산업과 직업에 관련하여 해당하는 자격의 매칭 테이블을 기준으로 그 자격의 가치를 평가하는 방법을 선택하였다. 산업에 대한 분석은 일반적으로 활용되고 있는 경영기법에 따라 그 절차를 수용하고 관련변수를 응용 또는 적용하도록 하였다.

• Proceedings of the KOR-KST Conference
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• 1998.10a
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• pp.410-419
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• 1998

인천시 택시사고율이 전국에서 가장 높기 때문에 인천택시사고의 특성분석과 대책을 마련하는 것이 본 연구의 목적이다. 택시사업체, 택시기사, 도로현황, 보험제도 등을 설문조사, 현장조사, 방문조사방법을 통하여 분석하였다. 설문조사결과 상용근로자의 요인이 안전에 좋은 영향을 가져올 것으로 기대되는 등의 13개 시사점을 발견하였고, 도로의 구조적 문제점을 세부적으로 지적하였으며, 주행거리 종량제와 같은 보험제도 개선안을 제시하였다. 그리고 버스전용차로의 택시이용에 관한 정부의 배려가 현재 악화되어 있는 택시의 운영실태를 개선할 것으로 보며, 결국 택시사고의 감소로 이어질 것으로 기대된다.

• Journal of Labour Economics
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• v.24 no.2
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• pp.125-162
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• 2001

According to the survey results on non-standard employment, most of the non-standard workers are women and work at service jobs and some jobs that do not require firm-specific skill. Also wages of non-standard workers appear to be lower than those of standard workers by 10~19%. Non-standard workers are very much likely to be excluded from beneficiaries of economic growth because job contents and ability are not important relatively as criteria in determining their basic wage and their benefits are also much lower in severance pay and bonuses, vacations, 4 social insurances, education and training opportunities. Because of very low rate of union membership, the working conditions of non-standard workers are not expected to be improvable easily by unions. It seems that the reason of the demand increase for non-standard workers is mainly because not only an individual establishment demands quantitative flexibility in employment, but also there are tendencies of being smaller in establishment size and of growing service industries macro-economically. The number of non-standard workers are expected to increase continuously in the future, too.

• Journal of Labour Economics
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• v.27 no.2
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• pp.29-66
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• 2004

In this paper, I investigate job creation and destruction in Korean mining and manufacturing between 1982 and 2000 using the raw data of Annual Mining and Manufacturing Survey. The rate of job creation and destruction of continuing plants averaged 9.75 and 10.33, respectively, which are higher than those of OECD countries, Chile, and Colombia. The created jobs showed weak persistence and the concentration of job reallocation is high, compared with other countries. Job reallocation accounts for major fraction of worker reallocation and the fraction has increased before 1997. Analysis of time series data of job flow revealed a general pattern of pro-cyclic job creation and counter-cyclic job destruction. However job reallocation in Korea is strongly acyclic whereas the rate is known to be counter-cyclical in the U.S.