• Journal of the korean academy of Pediatric Dentistry
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• v.10 no.1
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• pp.7-12
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• 1983

The author used cephalometric roentgenogram to observe the longitudinal change by orthodontic treatment for early class III malocclusion in primary and mixed dentition. First, the cephalometric roentgenograms were measured and following results were obtained 1. SNA, SNB, ANB, Gonial angle, and SN to mandibular plane were measured as skeletal pattern and $\underline{1}$ to SN. $\overline{1}$ to mandibular plane and interincisal angle were measured as denture pattern. 2. Angular measurements for the Class III malocclusion were compared with those for the normal occlusion of the same Hellman dental age.

• IE interfaces
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• v.25 no.3
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• pp.300-308
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• 2012

For convenient business process modeling we propose a mathematical approach to obtain appropriate process structures. In this paper, we define business process structural constraints, on which basis, using Social Network Analysis (SNA), we analyze the frequency of handover occurrences among performers in social network. We here present, therefrom, a new, mathematical approach to business process modeling that proceeds by identifying the social relations among activities.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.05a
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• pp.221-240
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• 2017

이 연구의 목적은 비 해양분야 바이오기업의 해양 분야 진출을 유도하기 위해 필요한 지원 조건들을 기업수요 관점에서 확인하고, 이를 기초로 향후 해양바이오 산업 육성에 필요한 기업저변 확대를 위한 정책지원 방안을 도출하는 데 있다. 이 연구에서는 전국의 200개 바이오기업을 대상으로 실시한 조사 결과를 활용한 통계분석을 통해 해양 분야와 비 해양 분야 바이오기업의 기업운영 현황을 비교분석하였으며, SNA(Social Network Analysis)를 이용해 비 해양 분야 바이오기업이 해양 분야로 진출하기 위해 필요로 하는 기업니즈를 분석하였다. 이 연구의 분석결과를 요약하면 다음과 같다. 첫째, 바이오 기업의 23.5%는 해양바이오 소재 활용을 병행한 기업 생산 활동을 하고 있다. 둘째, 최근 해양바이오 소재의 유용성이 확인됨에 따라 비 해양바이오 분야 기업의 58.8%는 해양바이오 분야에 대한 진출의향을 갖고 있는 것으로 분석되었다. 셋째, 비 해양분야 바이오 기업들이 해양 분야로 진출하기 위해 가장 필요로 하는 것은 기술지원과 정보공유, 산업소재의 확보 인 것으로 조사되었다. 이 연구에서는 분석 결과를 기초로 하여 향후 바이오 기업의 해양 분야 진출을 지원하기 위해 필요한 전략을 제시하였다.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.05a
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• pp.335-356
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• 2017

본 연구에서는 4차 산업혁명에서 가장 중요하게 대두될 수 있는 융합R&D정책에 대해 소셜 네트워크 분석을 통해 새로운 대안을 제시하려고 한다. 연구장비, 연구성과의 자료들을 활용하여 연구장비 네트워크 분석을 실시하여 융합R&D의 특성 및 구조분석을 실시하며, 연구장비 공동활용 및 다학제 협력연구를 통해 창출될 수 있는 새로운 융합R&D정책에 대한 접근을 시도하려고 한다. 나아가, 연구개발과 사업화 사이에서 더욱 중요한 역할을 할 수 있는 분석과학기술에 대한 정책적 플랫폼 구축관점 대한 시사점을 찾아내려고 한다. 이를 위해 계량적 접근과 비계량적 접근을 동시에 활용하여 연구주제에 대한 타당성을 확보할 것이며, 앞으로 미래산업 및 유망기술에 대한 전략적 선별에 있어 일부 근거를 제시해줄 수 있을 것이다. 이러한 연구결과를 통해 우리나라 기초과학 및 기초과학인프라에 대한 발전적 정책방안과 융합연구 및 융합연구의 사업화에 대한 정책적 관점을 제시하도록 한다. 분석자료는 한국기초과학지원연구원(KBSI) 현황자료를 중심으로 살펴보며, 분석방법은 소셜네트워크분석(SNA:Socail Network Analysis)을 활용한다.

• The Journal of the Korean dental association
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• v.19 no.2 s.141
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• pp.167-174
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• 1981

The purpose of this study was observing the annual growth increment in cephalogram. The cephalograms of 29 boys & 23 girls were analized by method of Downs & Steiner, range from 7 to 8 years in Korean children. the results were as follows; 1. The craniofacial complex of Korean children grew downward and fordward. 2. The pronounced linear and angular growth changes were in the upper central incisors and lower central incisors. 3. The SN Plane to Mandibular plane angle was reduced. 4. The SNA and SNB was almost constant in male.

• The korean journal of orthodontics
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• v.9 no.1
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• pp.105-110
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• 1979

In order to define what the average Class I malocclusion looks like, 72 Class I malocclusions were compared with corresponding measurements from 90 cases of normal occlusion sample. This sample was obtained from the Department of Orthodontics, Infirmary of Seoul National University. 1. SNA, Fac(NP) to SN measurements were significantly different from the normal occlusions and smaller than the normal occlusion means. 2. 'Y' axis to SN, Mandibular plane to SN, $\underline{1}$ to Occlusal plane, $\bar{1}$ to NB(linear) measurements were significantly different from the normal occlusions and larger than the normal occlusions. 3. ANB, Occlusal plane to SN, AB to Occlusal plane, $\underline{1}$ to SN, $\bar{1}$ to SN, $\bar{1}$ to Occlusal plane measurements showed no significant difference between the means.

• Journal of the Korean Solar Energy Society
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• v.34 no.4
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• pp.83-90
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• 2014

South Korea's solar energy industry has been made vertical integration and specialization as part of the restructuring in the downturn of the world economy and the oversupply situation of raw materials. This study is to understand the characteristics of the solar energy industry, using data to systematic approach. In this study, it was defined the major business of firms as 22 business types and classified into 5 enterprise groups as technology and business strategy. After that, It was deduced features of Enterprise group by the statistical analysis and looked to draw a map of the industrial structure by social network analysis using the information on companies' demand and supply.

• Ocean and Polar Research
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• v.37 no.4
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• pp.369-383
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• 2015

The purpose of this study is to ascertain the demands for developing marine science technology to reduce fatalities caused by marine accidents. For this purpose, we analyzed the contents of about 77,000 news articles posted for a month after the tragedy of the Sewol (April 16~May 15) to identify keywords and then we used the Social Network Analysis (SNA) for each keyword. The findings of the analysis show that there are five networks and that each one reveals different aspects about technology development to prepare for marine accidents. Based on these findings, we categorized three kinds of demands for technology development from the perspective of marine science technology: provision of the information about the marine environment, development of equipment and technology to overcome extreme environments, and the establishment of a field support system.

• The Journal of the Korean dental association
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• v.19 no.7 s.146
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• pp.615-623
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• 1981

The purpose of this study was observing the annual growth increment in Cephalogram. The Cephalograms of 28 boys & 22 girls were analized by method of Downs & Steiner, range from 7 to 9 years in Korean children. The results were as follows. 1. The change of gonial angle in both male and female is not presented in this age. 2. The most significant linear change of both male and female is the facial depth (Na-Go) and that of both male and female is the interincisal angle in this age. 3. The increment of the mandibular body length (Go-Me) and the anterior facial height (Na-Me) is presented in this age. 4. The change of SNA and SNB in both male and female is negligible is negligible in this age.

• The korean journal of orthodontics
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• v.15 no.2
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• pp.327-340
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• 1985

This study was performed to establish the Cephalometric standards and growths change of Korean Teen aged group by McNamara's Analysis. The data from Cephalometric films of 161 male and 205 female subject aged from 10 to 18 years of Normal Korean were used for this study. The following results were obtained: 1. Means, standard deviation from measured values in each age group and sexual values were obtained. 2. Greater measurement stowed in male than female in Condylion to point A, Condylion to Gnathion, MaxilloMandible differential and ANS to mouton in linear measurement of 18 age group. 3. Condylion to point A, Condylion to gnathion, MaxilloMandible differential and ANS to Menton are increased as the age increased. 4. Facial axis angle and Mandible plane angle of 15 and 18 aged group showed less value than that of 10,11,12 age group. 5. There was no significant value changes of Lower incisor to A-Po, SNA angle and Lower pharynx by the increasing of age.