• 한국습지학회지
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• 제9권1호
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• pp.47-60
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• 2007

The rapid development of economy in China at the expense of consuming huge amount of energy and resources, water resource in particular, which has resulted in the production and discharge of increasing amount of wastewater to the water environment. In order to effectively control the increasing water pollution trend, the State Council has stipulated that all the cities with population over 500,000 should reach wastewater treatment rate of 60% by 2005, and all the cities should reach the rate of 60% by 2010, of which Capital Beijing and all the province capital cities and important tourism cities should reach 70% then. By the end of 2005, of the 661 cities in China, 393 have built and operated municipal wastewater treatments with a total number of 790 sets, total treatment capacity of $80.91{\times}106m^3/d$ and total treatment rate of > 48%. Other 73 cities have started the construction of municipal wastewater treatment plants, and other 168 cities have started to prepare, planning and design of wastewater treatment plants. Most of municipal wastewater treatment plants in big cities in China operate normally and perform well with good quality of effluent in terms of wastewater treatment train, but the sewage sludge treatment is usually poor with big problems. It has been found that the small scale WWTPs using activated sludge process in the towns are usually operated and maintained abnormally because of lack of fund, skilled operators and energy. It is therefore suggested that the small scale MWWTPs in small cities and towns adopt appropriate technologies, of which the most available ones are multi-stage ponds, constructed wetlands and the combination of them for further purification and reuse of treated wastewater.

• 한국위성정보통신학회논문지
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• 제7권2호
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• pp.42-46
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• 2012

본 논문은 모바일 광대역 서비스가 활성화되면서 나타나는 모바일 빅 데이터 트래픽의 발생이 모바일 광대역 서비스의 발전을 제약하지 않도록 이동통신 주파수 활성화를 위한 기술 및 경제적 환경 조건을 분석하고 활성화 방안을 제시한다. 새로운 이동통신 주파수의 활성화를 위해서는 투자의 비용과 수익의 균형이 이루어져야 한다. 모바일 빅 데이터 트래픽을 처리하기 위한 새로운 이동통신 주파수의 활성화는 기술과 경제적 요인 그리고 통신사업자 내부 요인과 외부 요인이 결합되어 있다. 투자비용은 내부 요인인 자본적 비용(Capital Expenditure), 운용비용(Operating Expenditure)과 외부요인인 주파수 할당 대가와 관련 있으며 수익은 내부요인인 요금제와 외부 요인인 망중립성 문제와 관련 있다. 새로운 이동통신 주파수의 활성화는 투자비용에 주파수 할당 대가를 포함하고 투자수익에 네트워크 증설이 가능한 요금제 운영과 외부 콘텐츠에 의한 트래픽 증가에 따른 수익이 포함되어 투자비용과 수익이 균형을 이루어야 한다.

• 한국산업정보학회논문지
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• 제27권2호
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• pp.163-176
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• 2022

비즈니스 생태계의 불확실성이 증가함에 따라 공급사슬 내에서 야기는 되는 리스크의 종류도 매우 복잡하고 다양해 지고 있다. 특히 최근 정보통신기술의 발달로 기존 기업이 직면하던 전통적인 공급사슬 리스크 요인 이외에 새로운 리스크 요인을 고려할 필요가 있다. 대표적으로 소셜 미디어를 통한 부정적 구전을 예를 들 수 있다. 이에 본 연구는 대표적인 소셜 미디어인 유튜브(YouTube) 통해 제조 기업을 대상으로 부정적 구전의 파급력에 대해서 연구하였다. 보다 구체적으로는 부정적 구전의 제작자의 사회적 자본이 부정적 구전의 파급력에 어떤 영향을 주는 살펴보고, 그 과정에서 동영상의 부정적 감정이 어떤 역할을 하는지 연구하였다. 그 결과 부정적 구전 생성자의 사회적 자본은 부정적 구전의 규모와 속도에 영향을 주며, 나아가 동영상의 부정적 감정 단어는 동영상 제작자의 사회적 자본과 부정적 구전의 규모에 있어 조절효과를 보였다.

• 한국잠사곤충학회지
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• 제14권2호
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• pp.95-103
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• 1972

The major purpose of this study is to collect the information related on the aspects of economic efficiency for solving the problems which are faced by farmers and areas, and providing scientific facts to farmers and related institutions for further development of sericultural sector in Korea. In order for obtaining the related information 12 sample areas among 23 major sericultural farming areas and 30 farm units in each area are selected and analyzed in this study. The fold suevey is made by member of this study team and graduate students in the Department of Sericultural Science with a prepared questionnaires. Cross-section and regression analysis methods are employed for processing the data in this study. The major findings obtained are as followings. 1. Sericultural earnings per Tanbo is, on the average, 22, 752 won in new cultivated areas and 29, 403 won in ordinary ones. There are big difference in the size of earnings by areas, especially, 46, 968 won in Kumo mountain area, compared with 16, 798 won in Yeoju and Yichun areas. General trend is finded that small scale farming units are made higher earnings and operating their farms efficiently. 2. Cocoon production expences per Tanbo is 16, 737 won in new cultivated areas and 19, 802 won in ordinary areas. There are also big difference in farming expences, especially, 27, 389 won in Sudang area, compared with 11, 689 won in Emjin area. 3. Sericultural income per Tanto is 10, 664 won in ordinary areas and 6, 898 won in new cultivated areas. Farmers in Kumo mountain area make the highest income of 21, 164 won and lowest income of 1, 296 won in Sudang area. It can be generized that about 30-50 a sized farmers make higher income. 4. Land, labor and capital productivities estimated by fitting Cobb-Douglas functions in ordinary areas are higher than in new cultivated areas, especially, labor productivity is higher in ordinary areas. 5. Changsung, Kwangna, Yunsun and Kumo mountain areas are technically and economically efficient. Sudang and Mujinchang areas are technically successful but economically inefficient and Emjin and Honam areas are technically inefficient but economically efficient. YeojuYichun, Chunwon and West Kyongnam are technically and economically inefficient. Technical and economic improvement program should be implemented for these areas. 6. Estimated Internal Rate of Return (IRR) on capital investment in Chongwon are is 23.5 percent. It is economically feasible, if we consider 20 percent of opportunity cost of capital in our economy.

• 한국의류산업학회지
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• 제24권5호
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• pp.545-556
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• 2022

To overcome the pandemic, a new strategy for innovation is in demand throughout the value chains of the fashion industry that emphasize the importance of fashion technology. Accordingly, as various viewpoints and fields of debate are unfolding to consider the direction of change led by fashion technology, it is necessary to make an active value judgment precedent by understanding the differences between various opinions. This study aims to derive keywords from fashion technology used during the pandemic, to infer the characteristics of each type of perspective and to understand their characteristics. For the research, this study combines text mining analysis and content analysis. Text mining analysis is used to find statistical patterns by collecting keywords from big data from online media, and content analysis is used to interpret the data qualitatively. After analyzing the results of this study, the following observations are made. First, the perspective of positive acceptance seeks to maximize the perception and sensory action of fashion through technology; this amplifies experience, an opportunity for innovation and efficiency. Second, critical vigilance highlights the side effects of radical changes in fashion technology, characterized by concerns about capital-centered polarization, threats to human rights, and infringement of creative thinking. Lastly, the perspective of gradual adoption is the gradual convergence of technologies, characterized by the pursuit of an appropriate balance.

• 한국산학기술학회논문지
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• 제20권3호
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• pp.338-352
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• 2019

본 연구는 글로벌 스타트업 육성에 따른 국내 스타트기업의 해외진출을 위한 장애요인을 규명하기 위한 목적으로 실증조사 하였다. 조사방법은 스타트업으로 참여한 전국 각 지역별 광역시에 소재한 5년 이상 된 기업 300개 기업을 대상으로 조사 후 신뢰도 및 타당도 분석과 동시 구조모형에 의한 AMOS 구조방정식으로 통계 분석하였다. 그 연구결과를 보면 다음과 같다. 글로벌 스타트업으로 성장하기 위해서는 자금, 제품개발기간, 품질, 인적자원이 매우 밀접한 연관성이 있음을 실증해주었다. 그리고 스타트업 장애요인으로서의 자금요인은 유의하지 않았으며 개발기간과 품질, 인적자원은 산업경쟁력에 밀접한 연관성을 가지고 영향을 미침을 입증해주었다. 또한 스타트업에서의 장애요인이 산업경쟁력에 미치는 매개효과에 있어서도 자금요인은 기각된 반면, 품질과 개발기간 및 인적자원 요인은 채택되어 긍정적 매개효과를 있음을 실증해 주었다. 이는 스타트업 기업들의 특성상 자금 요인은 정부의 지속적인 지원으로 인해 경영에 큰 걸림돌이 되지 않으나 제품의 질을 일정 수준 유지하기 위한 독자적 제품 경쟁력과 이를 개발, 제품화 시켜주는 전문 인력의 뒷받침이 없는 한 성장이 요원함을 입증한 것으로 평가할 수 있다.

• 벤처창업연구
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• 제11권1호
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• pp.49-63
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• 2016

삶의 질적 풍요로움을 추구하는 21세기에 생활수준이 향상되고 삶에 대한 욕구가 다양해짐에 따라 주거의 질에 관한 관심이 점점 커지고 있다. 삶의 만족도는 주거만족이라고 하는 기본적 욕구가 충족된 생활로 볼 수 있으며 이러한 욕구의 충족으로 삶의 질은 높아질 것이다. 인간은 누구나 사회관계를 맺으며 생활하고, 사회관계는 다양한 측면에서 개인들의 삶의 질에 큰 영향을 미치고 있다. 이에 중장년층의 주거환경과 사회적 자본의 실태를 알아보고 주거환경과 삶의 만족도와의 관계에서 사회적 자본이 미치는 영향을 실증연구를 통해 밝히고자 하였다. 이에 본 연구는 자료 수집을 위해 중장년층을 대상으로 설문조사를 실시하였고, 설문지 500부를 배포하여 490부를 수거한 후 결측값이 없는 484부를 SPSS Win Ver. 21.0을 이용하여 실증 분석하였다. 분석결과 첫째, 중장년층의 주거환경이 삶의 만족도에 미치는 영향을 분석한 결과 유의한 영향을 미치는 것으로 나타났다. 둘째, 중장년층의 주거환경과 삶의 만족도 간에 사회적 자본의 조절효과를 분석한 결과 부분적으로 유의한 영향을 미치는 것으로 나타났다. 이와 같은 연구결과에 따라, 향후 중장년층의 보다 만족스러운 삶의 질 향상을 위한 방향과 우리나라 주거정책 수립에 유용한 기초자료를 제공하고자 한다.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2008년도 한국우주과학회보 제17권2호
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• pp.22.1-22.1
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• 2008

Media company is not a business which sells news and information but a company sells audience's attention. Advertisers estimate audience's quantity and quality which pay attention to media and pay the cost. Thus drawing audience's attention is a natural and instinctive behavior for survival of media company. News doesn't deliver the fact just as it. That's impossible. News is a commodity made by processing and selection of the media company and journalist. On the process, judge of values is involved and limitation of time and place of media is considered. If scientists understand media's character truly, their misunderstanding about media company and journalist may be cleared up. In this society, media is not a being to ignore, particularly for big science like space science which spends huge public capital. Nowadays, space science meets the time to take the leap in Korea. However that can be crisis cause of uncertainty of science activity. When the crisis which no one desires happens, preparation needs for new opportunity. We can take the crisis as a chance. Understanding about media and public will be the first step for this preparation.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권2호
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• pp.767-785
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• 2021

With the rapid development of information technology, it is now possible to analyze the spatial patterns of cultivated land and its evolution by combining GIS, geostatistical analysis models and spatiotemporal big data for the dynamic monitoring and management of cultivated land resources. The spatial pattern of cultivated land and its evolutionary patterns in Luoyang City, China from 2009 to 2019 were analyzed using spatial autocorrelation and spatial autoregressive models on the basis of GIS technology. It was found that: (1) the area of cultivated land in Luoyang decreased then increased between 2009 and 2019, with an overall increase of 0.43% in 2019 compared to 2009, with cultivated land being dominant in the overall landscape of Luoyang; (2) cultivated land holdings in Luoyang are highly spatially autocorrelated, with the 'high-high'-type area being concentrated in the border area directly north and northeast of Luoyang, while the 'low-low'-type area is concentrated in the south and in the municipal area of Luoyang, and being heavily influenced by topography and urbanization. The expansion determined during the study period mainly took place in the Luoyang City, with most of it being transferred from the 'high-low'-type area; (3) elevation, slope and industrial output values from analysis of the bivariate spatial autocorrelation and spatial autoregressive models of the drivers all had significant effects on the amount of cultivated land holdings, with elevation having a positive effect, and slope and industrial output having a negative effect.

• 산업경영시스템학회지
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• 제6권9호
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• pp.45-59
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• 1983

This study focuses on the growth and development of small and medium industries of Korea, orienting to the development of up-to-date technology from now on and bolstering their competitive ability in the rapidly changing international markets. For this purpose, the small and medium industries should 1) develop high-level manpower of up-to-date technology, 2) make constant efforts to categorize and divide the fields of technology with big business groups to boost their competitiveness, 3) raise automation rate by turning all facilities into mechatronics, 4) positively develop software know-how, 5) jointly conduct researches in cooperation with venture capital and Governmental research institute, 6) categorize an systematize the industries. On the Governmental level, there should be 1) wide-ranging support and assistance in technology, finance, and the facilities, 2) positive opening of consumer market, 3) assistance in technical cooperation with other nations, 4) and such indirect assistance as fostering the fields of related technology.