• 융합경영연구
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• 제10권2호
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• pp.1-13
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• 2022

Purpose: The findings are expected to be used as basic data for policy establishment for systematic support and upbringing of small and medium-sized suppliers through the current status and characteristics of the industrial structure of the MRO consumable materials industry as a whole and the market trend. Research design, data, and methodology: This survey is conducted in 2019 mainly for companies that operate consumable materials delivery business, and the survey size is about 25,000 in advance (selected) and about 2,000 in the main survey. Using cluster analysis and multidimensional scaling, we derive the visualization of the homogeneous grouping of cases and the relationship structure between them. Results: Based on the attributes of reason for not having an online trading system, it is classified into three and four clusters for industry and company size, respectively, and the feature and pattern of each individual can be are relatively evaluated and visualized. Conclusions: Small and medium-sized consumable material suppliers specialize in products rather than fierce pricing strategies or external expansion strategies and it is more effective to establish a plan to promote the growth of both large and small enterprises through cooperation with large corporations.

• 벤처창업연구
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• 제10권1호
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• pp.33-44
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• 2015

본 연구에서는 대전의 혁신과 창업을 위한 과학기술정책과 산학협력방안에 대해서 고찰한다. 이를 위하여 대전의 기술혁신시스템에 대해서 고찰하였다. 대전의 과학기술시스템은 지역과 중앙의 과학기술혁신거버넌스가 조화를 이루고 있다. 정부출연연구소, 민간연구소, 지역의 벤처/중소기업, 대학 및 관련지원기관인 대전테크노파크, 대전벤처협회 등 지원기관이 구축되어있다. 이를 기반으로 한 혁신클러스터로서 '대덕연구개발특구'와 새로운 기초과학 중심의 혁신클러스터인 국제과학비즈니스벨트가 있다. 대전의 과학기술정책은 지역수준에서 중앙과 지역정책의 조화를 이루는 과학기술정책의 비전을 바탕으로 주요 혁신클러스터 육성, 대전지역의 전략산업육성, 신선장동력으로 IT, BT, NT 융복합 산업의 육성, 벤처기업의 단계별 육성이다. 이러한 과학기술정책의 기본 방향 하에 대전지역의 혁신과 창업을 위한 과학기술정책과 산학협력활성화 전략을 고찰하면 다음과 같다. 첫째, 중앙과 지역의 조화를 고려하여 지역수준의 예측을 기반으로 과학기술정책 추진하는 것이다. 둘째, 지역과학기술 및 벤처생태계를 고려한 글로벌 혁신클러스터 육성이다. 대전지역을 대덕연구개발특구이외에 국제과학비즈니스벨트를 양대축으로 하여 세계적인 혁신클러스터의 중심으로 육성하는 것이다. 셋째, 세종시 및 수도권 등 광역권 산학협력 강화 추진하는 것이다.

• 수산해양기술연구
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• 제51권3호
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• pp.348-354
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• 2015

Experiments for catch and cluster analysis on the catch by gillnet for the Pacific herring were conducted using traditional nylon net (PA) and developing biodegradable net (PBS) with different monofilaments of #2 (=0.23 mm) and #3 (=0.28 mm) in diameter between 2011 and 2012, and of #2, #2.5 and #3 in 2013 in the eastern coastal waters of Samcheok, Korea. The total catch during the experiments was 3,337kg in weight and 16,757 individuals in number. Though the catch ratio of the Pacific herring in 2011 and 2012 was 97.4% and 98.7%, respectively, that of the Pacific herring in 2013 was 73.6% as the biggest and followed by goldeye rockfish (8.6%), black edged sculpin (8.4%), atka mackerel (7.2%) and Alaska cod (1.0%). The ANOVA analysis on the total catch in relation to net material showed that there was not statistically significant difference at the 5% level between nylon net (PA) and biodegradable net (PBS) (p=0.91). With the cluster analysis on the catch in relation to net material (PA, PBS) and twine thick (#2, #3), it showed the influence of net material on the catch was greater than that of twine diameter in this experiment. From the test of homogeneity on the catch by the gillnet with PA and PBS in which several species were caught in 2013, there was not statistically significant homogeneity in relation to net material (p<0.005). That meant the traditional gillnet of nylon (PA) was more efficient than the biodegradable (PBS) gillnet to catch several kinds of fish, however the PBS gillnet was better than the PA gillnet to catch the target Pacific herring.

• 한국경제지리학회지
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• 제15권2호
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• pp.292-303
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• 2012

본 논문은 중국의 청도 가전산업이 군집되는 과정에서 나타나는 연구개발(R&D) 네트워크의 구조와 공간적 특징을 분석하고자 했다. 청도 가전산업의 연구개발 네트워크 분석 결과는 다음과 같다. 청도 가전산업은 정부 주도하의 대기업을 중심으로 인근 지역에 하청업체들이 집적을 이루고 있었지만, 청도 가전산업의 주요 기술혁신 요인인 대기업의 기업내부 자체 개발, 지역 내 타 기업과의 협력, 지역 내의 대학 및 공공연구기관과의 협력 수준은 낮게 나타났다. 청도 가전산업 대기업은 이와 같은 단점을 극복하기 위하여 지역적 협력보다는 지역 외 기업과의 협력을 적극 도모하고, 지역 외의 대학 및 연구기관과의 협력을 강화하는 전략을 선택하고 있다. 이는 청도 가전산업의 산학연 협력 네트워크가 아직 활성화되지 않았음을 의미한다. 청도에 가전산업을 중심으로 한 지역혁신체계가 구축되기 위해서는 지역 내 기업-대학-공공연구기관 간 긴밀한 네트워크가 이루어져 공동체적 지역 산업 분위기가 형성되어야 한다.

• 한국경제지리학회지
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• 제14권1호
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• pp.52-70
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• 2011

산업클러스터는 산, 학, 연 네트워크를 통한 지식의 공유와 교류를 통해 기업 혁신의 촉진을 추구한다는 점에서 기본적으로 지식경영의 개념과 연관돼 있다. 이런 이유로 최근 기존의 기업 또는 독립된 조직 단위에서만 이루어져 온 지식경영이 산업클러스터 단위에서도 적용될 필요가 있다는 주장이 나오고 있다. 본 연구는 이런 연구의 흐름과 실무적 요구를 감안해 산업클러스터에서 지식경영이 효과적으로 이루어지려면 어떤 특성이 반영될 필요가 있으며 효과적 지식경영의 적용을 위한 과제는 무엇인지를 탐색해 본다. 연구 목적의 달성을 위해 기존 연구를 토대로 관련 개념을 정의해 보고 심층면접과 사례연구를 통해 연구문제의 답을 탐색해 본다.

• Journal of Microbiology and Biotechnology
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• 제19권9호
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• pp.881-887
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• 2009

Forty-four eicosapentaenoic acid (EPA)-producing microbial strains were isolated from the intestines of marine fishes. Among them, one strain showing a maximum level of EPA (4.78% of total fatty acids) was identified as Shewanella sp. BR-2 on the basis of its 168 rRNA sequence. The EPA content reached a maximum level during the mid-exponential phase of cell growth, and gradually decreased with further growth of the cells. A cosmid DNA including the EPA biosynthesis gene cluster consisting of pfaA-E was isolated from a cosmid library of genomic DNA of Shewanella sp. BR-2, named pCosEPA-BR2. An E. coli clone harboring pCosEPA-BR2 produced EPA at a maximum level of 7.5% of total fatty acids, confirming the EPA biosynthesis activity of the cloned gene cluster.

• 한국콘텐츠학회논문지
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• 제9권10호
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• pp.398-406
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• 2009

본 연구의 목적은 관광행동에 따른 여행상품속성의 차이를 살펴봄으로써 여행업계가 더 주력해야 할 여행상품을 판매하기 위한 마케팅 전략을 제시하는 것에 도움을 주고자 하는 것이다. 본 연구를 위해 군집분석과 ANOVA분석이 이용되었는데, 군집분석 결과 4개의 군집으로 나타났다. '합리적 관광형', '약한 과시적 관광형', '가치적 관광형'과 '과시적 가치적 관광형'으로 분류되었다. ANOVA분석 결과 여행서비스와 오락을 제외한 교통 숙박시설, 관광매력물, 쇼핑, 식사에서는 관광행동에 있어 군집들이 차이를 보이는 것으로 나타났다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권3호
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• pp.976-990
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• 2020

The k-means algorithm is widely used in academia and industry due to easy and simple implementation, enabling fast learning for complex datasets. However, k-means struggles to classify datasets without prior knowledge of specific domains. We proposed the repulsive k-means (RK-means) algorithm in a previous study to improve the k-means algorithm, using the repulsive force concept, which allows deleting unnecessary cluster centroids. Accordingly, the RK-means enables to classifying of a dataset without domain knowledge. However, three main problems remain. The RK-means algorithm includes a cluster repulsive force offset, for clusters confined in other clusters, which can cause cluster locking; we were unable to prove RK-means provided optimal convergence in the previous study; and RK-means shown better performance only normalize term and weight. Therefore, this paper proposes the advanced RK-means (ARK-means) algorithm to resolve the RK-means problems. We establish an initialization strategy for deploying cluster centroids and define a metric for the ARK-means algorithm. Finally, we redefine the mass and normalize terms to close to the general dataset. We show ARK-means feasibility experimentally using blob and iris datasets. Experiment results verify the proposed ARK-means algorithm provides better performance than k-means, k'-means, and RK-means.

• 한국산업보건학회지
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• 제26권3호
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• pp.377-387
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• 2016

Objectives: The objective of this study was to describe the emotional labor experiences of ward nurses in Korea. Methods: The data were collected through focus group interviews with seven ward nurses. The phenomenological analytic method suggested by Colaizzi was used to analyze the data. Results: Four theme clusters and eleven themes emerged from the analysis. The first theme cluster, 'Terrible working environment' includes changes in the health environment and realities of nursing organization. The second theme cluster, 'Suppressed feelings' includes institutionalized power trip, patient-centered emotion management and burning. The third theme cluster, 'Tired body and mind' includes withdrawal, wounded self-esteem, burnout and turnover desicion. The fourth theme cluster, 'Want to be comforted' includes emotional control and wishing to live as a nurse. Conclusions: The findings of this study provide an understanding of the emotional labor experiences of ward nurses to explain their perceptions and language. The essence of the emotional labor of ward nurses is a negative working environment created by increased competition in the healthcare industry and the nature of nursing organization, and as a result their quality of life has fallen.

• 패션비즈니스
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• 제17권6호
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• pp.141-157
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• 2013

In this study, we analyzed the figure type and lower-body size of Shanghai and Hong Kong adult women in their early twenties using the data obtained from 3D whole body scanners. We also provided concrete information related to women's lower bodies, in terms of crotch width, crotch length, inseam, outseam, slope of waist, etc., among women in Shanghai and Hong Kong. The result may be useful to the Chinese apparel industry when designing trouser pants for adult women. According to the results of the factor analysis for categorizing the body shape of the lower half, 5 factors were obtained: obesity of the lower half factor, height of the lower half factor, length from waist to the crotch factor, factor related to legs, and shape of the abdomen factor. After performing a cluster analysis according to the factor analysis, three clusters were set: Cluster 1 was represented as the lower half growth type, which has a high value in height of the lower half factor and grows in the abdomen part. Cluster 2 was represented as thin legs type, which has a low value in most part compared to the length of leg bones and factors about legs that have high value. Cluster 3 was represented as the obesity type having a high value in the obesity of the lower half factor. Overall, thin legs type achieved a high rate in Shanghai adult women and obesity type received a high rate in adult women living in Hong Kong.