• 한국콘텐츠학회논문지
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• 제17권1호
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• pp.233-241
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• 2017

세계은행에서 매년 배포되는 비즈니스 실행편의성 보고서는 경제단위별로 중소기업의 비즈니스 활동을 향상시키고 제약하는 규제들을 비즈니스 수명주기의 10개 분야(평가요소)별로 측정하고, 이를 바탕으로 분야별 및 종합 점수와 순위를 산출한다. 이 종합 점수는 10개 분야별 점수를 모두 더한 것으로, 모든 분야별 점수가 동일한 비중을 가지고 있는 것을 의미한다. 사용하는 평가요소와 가중치에 따라서 평가 결과가 크게 달라질 수 있기 때문에 세계은행의 보고서가 우리나라 기업들이 중요시하는 평가요소들을 제대로 반영하지 못한 것일 수 있고, 그 결과를 직접 활용하기 어려운 측면이 있다. 이 논문에서는 대한민국 중소기업의 관점에서 이들 10개 평가요소의 가중치를 산정하여 경제단위의 비즈니스 실행 편의성을 비교하고자 한다. 국내 경영학부 교수 및 중소기업 CEO를 대상으로 AHP 기반의 설문을 실시하여 평가요소별 가중치를 산정하고, 이를 2016년 세계은행 보고서 자료에 적용하여 종합 점수와 순위를 산출하였다. 상위권과 하위권에서는 변화가 상대적으로 적었던 반면에, 중위권에서는 큰 변화가 나타나는 경우들도 확인되었다.

• Genomics & Informatics
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• 제1권2호
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• pp.94-100
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• 2003

Motivation: Many have observed a nonlinear relationship between the signal intensity and the transcript abundance in microarray data. The first step in analyzing the data is to normalize it properly, and this should include a correction for the nonlinearity. The commonly used linear normalization schemes do not address this problem. Results: Nonlinearity is present in both cDNA and oligonucleotide arrays, but we concentrate on the latter in this paper. Across a set of chips, we identify those genes whose within-chip ranks are relatively constant compared to other genes of similar intensity. For each gene, we compute the sum of the squares of the differences in its within-chip ranks between every pair of chips as our statistic and we select a small fraction of the genes with the minimal changes in ranks at each intensity level. These genes are most likely to be non-differentially expressed and are subsequently used in the normalization procedure. This method is a generalization of the rank-invariant normalization (Li and Wong, 2001), using all available chips rather than two at a time to gather more information, while using the chip that is least likely to be affected by nonlinear effects as the reference chip. The assumption in our method is that there are at least a small number of non­differentially expressed genes across the intensity range. The normalized expression values can be substantially different from the unnormalized values and may result in altered down-stream analysis.

• East Asian Economic Review
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• 제23권1호
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• pp.89-107
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• 2019

This paper ranks higher education in Korea based upon research productivity in business and economics disciplines. The number of SCI-level journal articles are tabulated using the Web of Science search engine, over the sample period from 1990 to 2016. The league table shows that many private universities dominate top-tier ranks, which is consistent with the school reputations most commonly cited by the general public in Korea. In contrast, many national universities appear in the second-tier, and their scanty performance in business and economics is in sharp contrast with our earlier findings in which national universities performed well in science and engineering fields (Jin and Kim, 2018). In addition, the ranking order in lower-ranked schools is found to be sensitive to a small change in publications, whereas the publication gap among top-tier schools is relatively large. Finally, unlike our general perception, the size of school does not matter for collaborative research. Some policy implications are discussed as a conclusion.

• 대한수학회논문집
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• 제29권1호
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• pp.187-193
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• 2014

In this paper, we want to represent a method for ranking of two exponential trapezoidal fuzzy numbers. In this study a new Cardinality between exponential trapezoidal fuzzy numbers is proposed. Cardinality in this method is relatively simple and easier in computation and ranks various types of exponential fuzzy numbers. For the validation the results of the proposed approach are compared with different existing approaches.

• 농업과학연구
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• 제30권2호
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• pp.139-147
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• 2003

The main purpose of this study is to obtain forest scenic beauty management informations toward forest working systems in pinus densiflora forest stands, etc. To get these information, visual preference and spatial image analysis methods are used. 25 different alternatives were simulated to visualize on basis of actual forest working methods with taken photos from May to July, 2003. The options were illustrated as photos produced by computer software. Respondents' ratings for 25 landscape scenes were obtained by interview survey method. Each alternatives were evaluated by forest major student group with total 103 respondents after reliability test. Visual preference evaluation was used 10 point rating scale. Spatial images of 12 alternatives were measured by 12 semantic differential scale. In general, the respondents preferred refreshing and ordering forest stand after forest working to natural forest stand before forest working. High visual preference for forest density produces 400-600 trees/ha in small diameter class forest stands. Regarding visual preference according to pavement type of trail, soil trail is ranked high. Visual preference for cutting area ranks mature forest stand and visual preference for trail slope cover type ranks shrub with grass as relatively high on the preference scale. Through the factor analysis, spatial images of 12 coniferous forest stands are classified as 'ordered opened' and 'beautiful healthy'. Results indicate how to conduct forest working systems for forest scenic beauty management.

• 자원환경지질
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• 제41권5호
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• pp.475-484
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• 2008

본 연구에서는 국가위험도 및 국가신용등급 현황을 파악하고, 이들 지표와 광물자원개발 투자와의 관계를 분석하여 해외 광물자원개발투자를 위한 지표를 도출하고자 했다. 이를 위해 국가위험도와 광물자원부존국과의 관계를 분석하였고, OECD 국가신용등급을 적용한 자원개발 투자 위험도와의 상관성을 검토하였다. 실제 광물자원 투자사업 시 국가위험도 역할이 중요한 변수로 제공되는 국가는 자원지수는 양호하나 국가위험도가 글은 국가들이다. 따라서 해외광물자원 투자 시 자원지수와 국가위험도와의 관계에 대한 신중한 검토는 사업 투자 여부 선정을 위한 필수요건이다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 춘계학술대회
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• pp.422-425
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• 2012

기존의 한국 아이폰 유저들은 앱스토어를 이용하면서 달러로 어플리케이션을 결제했어야 했다. 그러나 더 이상 애플도 한국 앱스토어에 원화 결제 도입에 대해 생각해야만 할 것이다. 달러 결제를 고집하던 애플이 아직 매출 비중도 낮은 한국에서 방향을 전환할 계기는 세계 3위에 오른 다운로드 건수이다. 그 만큼 한국시장의 성장 잠재력은 무궁무진하다. 그래서 본 연구는 아이폰 기반 원화 결제 시스템 도입으로 한국 애플시장의 변화와 아이튠즈 도입으로 인한 가격변동과 원화 결제시 발생될 한국 애플시장 확대의 장점만큼 그에 따른 문제점을 분석하여 보기로 하였다.

• 기술혁신연구
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• 제13권2호
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• pp.207-222
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• 2005

A prerequisite for making R&D more productive is to able to measure its productivity. Most of the previous studies on this topic have attempted to measure R&D productivity at the firm or industry levels. In this study, however, R&D productivity is measured at the national level to provide R&D policy implications, particularly for Asian countries. Contrary to the previous studies where total factor productivity was adopted, this study employs the data envelopment analysis (DEA) approach to measure R&D productivity. DEA is a multi-factor productivity analysis model for measuring the relative efficiency of each Decision Making Unit (DMU). In addition to the basic DEA model that includes all inputs and outputs, five additional models are constructed by combining single input with all outputs and single output with all inputs in order to measure specialized R&D efficiency. In this study, the twenty-seven countries are classified into four clusters based on the output-specialized R&D efficiency: inventors, merchandisers, academicians, and duds. Then, the characteristics of the Asian countries with respect to R&D efficiency are identified. It is found that Singapore ranks high in total efficiency, and Japan in patent-oriented efficiency. Meanwhile, China, Korea, and Taiwan are found to be relatively inefficient in R&D. We expect that the findings from this study will be able to provide directions for R&D policy-making of the Asian countries.

• Corrosion Science and Technology
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• 제9권6호
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• pp.325-330
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• 2010

Many surface protection methods have been developed to apply for constructional steels used under severe corrosive environment. Thermal spray coating has been known to be an attractive technique due to its relatively high coating speed. Furthermore high corrosion resistance of coated film with thermal spray is required to expand its application. Four types of coated films(DFT:300 um) such as pure zinc, pure aluminum and two Al-Zn alloy (Al:Zn=85:15 and Al:Zn=95:5) onto the carbon steel (SS401) were prepared with arc spray, and the corrosion behavior of their samples were evaluated by electrochemical method in this study. Pure aluminum sample showed high corrosion resistance behavior exposed to sea water solution and pure zinc and alloy (Al:Zn=95:5) samples followed pure aluminum sample. The other alloy(Al:Zn=85:15) so called galvalume coated onto the carbon steel ranks the 4th corrosion resistance in this study. The results of porosity ratio of those samples by observation are well matched with the electrochemical data.

• Journal of Information Science Theory and Practice
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• 제2권1호
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• pp.48-61
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• 2014

Using statistic and bibliometric methods to characterize scientific cooperation between China (excluding Hong Kong, Macao, and Taiwan) and South Korea through their bilateral co-authored papers covered by the Science Citation Index CD-ROM, 1991-2010, in our paper we exploit the feature of their cooperation in four levels: time sequence, academic community, key fields, and institution distribution. From the time sequence we know that collaboration between China and Korea starts in 1991, reaching the first peak during 2004-2007. As for the academic community, the number of Chinese corresponding authors (2414) is slightly lower than that of Korea (2700). Regarding the 27 high yield authors, there are only 4 coming from China. Korea has a higher active level than Chinese authors. China and Korea tend to cooperate with each other on strong disciplines such as physics, chemistry, material science, engineering, mathematics, pharmaceutical, computer science and biology. Furthermore, they also attach great importance to basic research and high-tech cooperation. Besides, Chinese Academy of Sciences ranks at the top 1 among the distribution of institutions. As a majority of the collaborative institutions are universities, the participation of non-university institutions is relatively low. There are 7 Korean universities among the top ten institutions, while Yanbian University and Tsinghua University in China rank respectively as third and fourth. Seoul National University, accompanied by Korea University and Yonsei University as the three top Korean universities, is also among the top among the cooperating institutions.