• 산업융합연구
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• 제18권3호
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• pp.1-6
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• 2020

이 연구의 목적은 Snyder가 제안한 희망 이론에 대한 이론적 이해와 학교 현장에서의 유용성을 확인하는 것이다. 이에 희망 이론이 우리나라 일반고 학생들에게서 나타나는 군집 유형을 탐색하고, 유형별 학습전략의 차이를 군집분석과 ANOVA를 통해 분석하였다. 연구결과는 다음과 같다. 첫째, 일반고 학생의 희망 군집은 네 유형으로 나타났다. 둘째, 희망과 학습전략은 정적상관관계를 보였으며, 희망의 두 하위 변인 모두 메타인지와 상관관계가 가장 높았다. 연구 결과를 토대로 희망이론은 프로파일적 접근을 통하여 성취나 적응 등 다양한 심리변인과의 관계구조 연구가 필요함을 제시하였다.

• 농촌계획
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• 제21권2호
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• pp.103-114
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• 2015

The comprehensive rural village development projects (CRVDP) have been carried out as the core one of the rural development schemes in Korea since 2004. CRVDP included the various rural experience programs to increase rural income and in order to promote rural community development in the project area. This study analyzed the operating management conditions, types and characteristics of the rural experience programs targeting the 168 CRVDPs have been completed so that the recommendations and lessons which were found the usefulness, challenges and improvements to the CRVDP can be provided to be better the same kinds of rural development projects. We identified the relationships between performances such as increasing village income and utilization of rural amenity resources to the CRVDP and operational management types of the rural experience programs as well. Employing principle component analysis and cluster analysis technique, this study found 5 clusters of rural experience programs among 168 CRVDPs. The results of analysis of variance indicated that there were significant the mean differences between clusters such as the utilization of rural amenity resources(0.01), income of rural experience programs(0.1). According to the result of the Chi-squire test, there was very significant differences between internet homepage operation and clusters(0.01). Finally, the analysis of covariance about the income of rural experience programs showed that there were significant the mean differences between clusters(0.05).

• 벤처창업연구
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• 제2권4호
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• pp.19-41
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• 2007

본 연구는 산업구조가 지식정보산업 주도로 재편되며 적정성장 기간(Time-to-market growth)이 중요한 이슈로 부상한 상태에서 창업초기단계의 적정성장을 도모해 줄 효과적인 기업지원 구축방안을 제시하는데 그 목표가 있다. 이를 위해 본 연구는 기존 지식정보 산업 단지 중심으로 도출된 클러스터의 핵심성공 요인을 분석하여 이로부터 이상적인 성장지원 클러스터를 도출 한 후, 이를 토대로 초기성장단계 기업에 대한 성장지원이 이루어져야 하는 다양한 시사점을 도출하였다. 따라서 본 연구는 클러스터 내 기관 및 기업 또는 클러스터에 연관되어져 있는 각 요인들이 속하여져 있는 네트워크망에 대한 고찰을 통하여 이상적인 네트워크망을 제시 하는데 초점을 두었다. 이를 위해 본 연구는 크게 세 가지 분석을 실시하였다. 사례조사를 통해 산업 클러스터의 성공요인 및 기업의 성장지원 클러스터 핵심성공요인을 도출하였고, 이를 네트워크 분석(Network Analysis)에 적용하기 위해 연결망 구조 분석에 접목하였다. 또한 클러스터의 핵심성공요인 분석을 토대로 도출된 기업의 성장지원망을 사회구조 행렬(Social Fabric Matrix)을 이용하여 계량화 한 후 연결망의 특성 분석을 실시하였다. 특히 본 연구는 각 기업의 성장지원기관들 간에 이루어진 연결망을 기준으로 Centrality Test를 실시하여 핵심지원체 인식을 위한 Core 분석을 실시하였다. 이로서 산업클러스터의 구조와 핵심성공요인 분석을 토대로 구축된 이상적인 기업지원 연결망간의 구조비교분석을 실시하여 기존 산업클러스터에 대한 연결망 개선 시사점을 제시하여 클러스터 내 네트워크 분석을 위한 자원의 활용과 네트워크 전략을 수립하는데 도움을 줄 수 있다.

• 원예과학기술지
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• 제31권3호
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• pp.322-327
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• 2013

The genetic diversity and phylogenetic relationships of eleven herbaceous peonies grown in Korea were analyzed by random amplified polymorphic DNA (RAPD). Twenty-four decamer RAPD primers were used in a comparative analysis of these Korean peony species. Of the 142 total RAPD fragments amplified, 124 (87.3%) were found to be polymorphic. The remaining 18 fragments were found to be monomorphic (12.7%) shared by individuals of all 11 peony species. Cluster analysis based on the presence or absence of bands was performed by Jaccard's similarity coefficient, based on Unweighted Pair Group Method with Arithmetic Averages. Genetic similarity range was 0.39 to 0.90 with a mean of 0.64. This study offered a rapid and reliable method for the estimation of variability among different peony species which could be utilized by the breeders for further improvement of the local peony species. Also, the results propose that the RAPD marker technique is a useful tool for evaluation of genetic diversity and relationship amongst different peony species.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2005년도 전력전자학술대회 논문집
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• pp.624-627
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• 2005

This paper presents a new data classification method using the Robbins Monro stochastic approximation algorithm k-nearest neighbor and distribution analysis. To cluster the data set, we decide the centroid of the test data set using k-nearest neighbor algorithm and the local area of data set. To decide each class of the data, the Robbins Monro stochastic approximation algorithm is applied to the decided local area of the data set. To evaluate the performance, the proposed classification method is compared to the conventional fuzzy c-mean method and k-nn algorithm. The simulation results show that the proposed method is more accurate than fuzzy c-mean method, k-nn algorithm and discriminant analysis algorithm.

• 대한방사선기술학회지:방사선기술과학
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• 제26권2호
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• pp.71-78
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• 2003

SPM99를 이용한 뇌지도 작성 과정에서 각각의 뇌 영상을 SPM99에서 제공하는 template image와 소아의 영상으로 만든 template image로 각각 공간 규격화하였을때 소아 ADHD 환자의 정상인 소아와 환자 그룹간의 비교를 실행하여 뇌혈류의 변화를 분석, 결과를 비교하였다. P-value를 0.05로 하였을 때 SPM99에서 제공하는 template image로 규격화하여 t-test를 한 결과 Inter-hemispheric 부근과 대뇌 후두엽에서 혈류량이 증가하는 것을 볼 수 있으나 12명의 정상 소아의 평균 image로 만든 template image로 규격화한 결과의 경우 좌뇌(Left Cerebrum)의 두정엽(Parietal Lobe)에서 또 다른 혈류량증가의 cluster가 나타났다.

• 한국환경과학회지
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• 제24권8호
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• pp.993-1001
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• 2015

Comparing to the other air pollutants like $SO_2$, CO, the number of exceedance of the ozone national ambient air quality standard(NAAQS) and the ozone warning increased recently in Busan. The purpose of this study is to find out the preliminary symptoms for high ozone days in Busan area. In order to find out the preliminary symptoms, the hourly ozone data at air quality monitoring stations and the hourly meterological parameters at Busan regional meteorological 2007 to 2013 were used for the analysis. Averaged daily max ozone concentration was the highest(0.055 ppm) at Noksan and Youngsuri in the ozone season from 2007 to 2013. The horizontal distributions of daily max. ozone including all stations in Busan at high ozone days(the day exceeding 0.1 ppm of ozone concentration at least one station) were classified from two to five clusters by hierarchial cluster analysis. The meteorological variables showing strong correlation with daily max. ozone were the daily mean dew point temperature, averaged total insolation, the daily mean relative humidity and the daily mean cloud amount. And the most frequent levels were $19-23^{\circ}C$ in dew point temperature, $21-24 MJ/m^2$ in total insolation on the day before, $2.6-3.0 MJ/m^2$ on the very day, 67-80% in relative humidity and 0-3 in cloud amount.

• 농촌계획
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• 제26권4호
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• pp.53-65
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• 2020

This study aimed to provide a basic information for managing the water quality of national and regional 1st rivers in Gyeongnam by analyzing the emerging hot spot patterns in BOD, T-P, and TOC, and by grouping the changing trends into clusters. The emerging hot spot analysis for each water quality item was implemented in ArcGIS Desktop with monthly water quality data from 96 water environmental monitoring stations in Gyeongnam, and then four patterns of water quality change were classified by the K-mean cluster analysis. As for BOD, persistent cold spot pattern covered about 42.9% of target rivers, and T-P concentration tended to be low or be getting lower at over 70% of target rivers. While, for TOC, about 70% of target rivers resulted in oscillating hot spots. In addition, the cluster analysis showed that the downstream of Nakdong river had the top priority in terms of water quality management because of the increasing concentration for all the three water quality.

• Asian-Australasian Journal of Animal Sciences
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• 제25권2호
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• pp.177-182
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• 2012

To investigate the genetic diversity of seven Chinese indigenous meat goat breeds (Tibet goat, Guizhou white goat, Shannan white goat, Yichang white goat, Matou goat, Changjiangsanjiaozhou white goat and Anhui white goat), explain their genetic relationship and assess their integrity and degree of admixture, 302 individuals from these breeds and 42 Boer goats introduced from Africa as reference samples were genotyped for 11 microsatellite markers. Results indicated that the genetic diversity of Chinese indigenous meat goats was rich. The mean heterozygosity and the mean allelic richness (AR) for the 8 goat breeds varied from 0.697 to 0.738 and 6.21 to 7.35, respectively. Structure analysis showed that Tibet goat breed was genetically distinct and was the first to separate and the other Chinese goats were then divided into two sub-clusters: Shannan white goat and Yichang white goat in one cluster; and Guizhou white goat, Matou goat, Changjiangsanjiaozhou white goat and Anhui white goat in the other cluster. This grouping pattern was further supported by clustering analysis and Principal component analysis. These results may provide a scientific basis for the characteristization, conservation and utilization of Chinese meat goats.

• 천문학회보
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• 제38권2호
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• pp.47.1-47.1
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• 2013

We present structural parameters of galaxies in the Extended Viro Cluster Catalog (EVCC), new catalog of galaxies in the Viro cluster using homogeneous Sloan Digital Sky Survey (SDSS) Date Release 7 (DR7) data. The EVCC covers more extended region of the Viro cluster than of the Virgo Cluster Catalog (VCC) and presents updated morphologies of galaxies using multi-band images and spectral features. We obtain the surface brightness profiles of galaxies using ellipse task in IRAF. Based on the analysis of surface brightness profile we construct a catalog of various structural parameters of galaxies, i.e. central surface brightness, effective radius, sersic index, effective surface brightness, and mean effective surface brightness. Taking advantage of these structural parameters in various parameter spaces, we refine criteria of dividing giant elliptical and dwarf elliptical galaxies. In addition, we found that bulge dominated galaxies have larger sersic index and brighter central surface brightness than disk dominated galaxies. At fixed magnitude, dwarf elliptical galaxies dwarf lenticular galaxies, and dwarf irregular low surface brightness (LSB) galaxies show larger effective radii than giant elliptical galaxies, giant lenticular galaxies, and irregular high surface brightness (HSB) galaxies, respectively. Dwarf elliptical galaxies and dwarf irregular LSB galaxies occupy the similar structural parameter spaces. We suggest that giant elliptical galaxies and dwarf elliptical galaxies may have different origin.