• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.12 no.1
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• pp.136-146
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• 2013

Truck demand analysis based on TCS data has limitation in that TCS data can not provide truck O/D data for each type of truck vehicle. This study conducted video survey for classifying truck vehicle types. By using TCS data and vehicle ratio by region/cities type, truck O/D data on expressway were estimated. It was found that average travel distances of small truck, medium truck and large truck were 52km/veh, 56km/veh and 97km/veh, respectively by analysing truck O/D data estimated in this study. The reliability analysis showed that check points where error rate is lower than 30% comprise of 87.3%. It is considered that estimated O/D data by truck vehicle types would be useful for the analysis of truck demand of expressway.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.11a
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• pp.165-172
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• 2008

Leakage incidents due to the fault of hazmat tank foundations are likely to cause the tremendous fire disaster in the national industry cluster area. The proper design and construction of tank foundation should be required to prevent the tank fire. In the study, the types of typical tank foundations were classified and modeling the individual tank type for 3D FEM analysis was performed to suggest the guideline for the design and construction of tank foundations. Matters to be attended of the foundation design and construction are reviewed through the comparison assessment of the numerical analysis results of the foundation types.

• The Journal of the Korea Contents Association
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• v.10 no.11
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• pp.452-460
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• 2010

This study carried out stability evaluation for design flood stage of vegetation models with river sites using 1D HEC-RAS and 2D RMA-2 numerical models. The vegetation models established in this study were divided into which channel reaches consist of urban, rural and mountain rivers with the social and cultural significance of the sites. Examination results from the numerical models showed a similar aspect with the design flood stage of these rivers before vegetation modeling. Also, no embankment overflow was shown from the urban river with additional vegetation density of 25%, although there were approximately 0.20m rising in the flood stage. In case of ural and mountain rivers, vegetation models showed scarce rising in flood stage.

• Korean Journal of Cognitive Science
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• v.24 no.3
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• pp.203-235
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• 2013

The goal of this paper is to test the findings about English-speaking children's acquisition of inflectional morphemes in the literature using a large-scale database. For this, we obtained a 4.7-million-word corpus from the CHILDES (Child Language Data Exchange System) database, and analyzed 1,630 British and American children's uses of English derivational morphemes up to age 7. We analyzed the type and token frequencies, type per token ratio (TTR), and the lexical diversity (D) for such inflectional morphemes as the present progressive -ing, the past tense -(e)d, the comparative and superlative -er/est with reference to children's nationality and age groups. To sum up our findings, the correlations between the D value and children's age varied from morpheme to morpheme; e.g. we found no correlation for -ing, a marginal correlation for -ed, and a strong correlation for -er/-est. Our findings are consistent with Brown's (1973) classical observation that children learn progressive forms earlier than the past tense marker. In addition, overgeneralization errors were frequently found for -ed, but rarely for -ing, showing a U-shaped developmental pattern at ages 2-3. Finally, American children showed higher D scores than British children, which showed that American children used inflectional morphemes for more word types compared with British children. The present study has its significance in testing the earlier findings in the literature by setting up well-defined methodology for analyzing the entire CHILDES database.

• Journal of the Korean Society of Clothing and Textiles
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• v.34 no.3
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• pp.385-392
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• 2010

The breast types of middle-aged women of 80A (formerly 80B) size were classified through a 3D scanned nude body. Thirty seven measurements including the radius of curvature, surface area, volume, surface length, and breast displacements were used as input variables. We extracted five main factors through the factor analysis of the measurements and classified 36 subjects into 3 clusters through the cluster analysis. As a result of the factor analysis, the size of the breast, breast sag, the curvature of the inner and the outer breast curve, the width of the breast, and the nipple direction were found as the main factors. For the results of the classification of breast types, Cluster 1 was characterized by narrow breast width and unsymmetrical under the breast curve, whereas Cluster 2 was a wide and sagged shape. Cluster 3 was classified into big breast volume and symmetrical under-breast curve. The results are useful to the product development of high quality brassieres which reflect the 3D characteristics of breast types of middle-aged women.

• Journal of the Society of Disaster Information
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• v.10 no.2
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• pp.208-218
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• 2014

The growth of disaster/accident damage costs and related industries has increased the necessity of scientific and objective performance analysis for fire suppression and disaster management R&D projects. Most of R&D performance are both academic and public performance according to fire suppression and disaster management R&D projects during the period of 2004 to 2011. This research identified characteristics of performance types by research project teams and research development stages. The research outcome shows the usefulness of relevant performance objective settings by project teams, the evaluation of scientific technology fields, and proper research teams in research team selection process, considering research outcome characteristics by both research teams and research development stages. In addition, this research reveals the applicability of research outcomes to research performance management. This research suggests further studies for evaluation process and methods for including fire suppression and disaster management characteristics to the evaluation process.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.49 no.3
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• pp.205-212
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• 2021

In this study, two types of thrust stand modeling were proposed for the design of a thrust stand using flexure. Type A model generate combined load for tangential (thrust) and axial compressive load (self weight). And type B generate combined load for tangential and axial tensile load. The research was done by comparing the influence of the load between the models through a 1D calculation and computational analysis. The 1D calculated value and the computational analysis value were compared for a total of 10 sections and the results were confirmed to be very similar. In order to prove the validity of the analysis results, the equivalent stress was confirmed from the computational analysis of the flexure, and the production of the Type B model was selected from the evaluation of the yield condition (Von-Mises Yield Criterion).

• Journal of Global Scholars of Marketing Science
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• v.3
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• pp.215-234
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• 1999

본 연구의 목적은 IMF의 어려운 경제환경하에서 과거와는 달리 기업이 생존 및 번영을 위해서는 어떤 신제품개발 전략을 세우고 그 전략은 기업의 신제품 성과에 어떤 영향을 미치는지를 알아보기 위함이다. 이를 위한 연구 질문으로 기업은 신제품개발을 위한 상이한 경영전략을 사용하는가 ? 그리고 신제품개발 전략은 신제품개발 성과에 영향을 미치는가를 파악하고자 하였다. 본 연구는 신제품개발 전략유형 즉 신제품 특성, 시장특성, 기술특성 그리고 프로그램 특성의 4가지 유형에 의해 실증분석을 한 결과 균형전략, 다각화전략 그리고 시너지추구 전략군 등 3가지 유형으로 집단화할 수 있었다. 균형전략군은 기술지향성과 마케팅지향성을 동시에 보유하고 있는 전략군이고, 다각화전략군은 새로운 고객의 욕구충족을 위해 새로운 유통경로와 촉진활동을 촉진하는 전략군이며 마지막으로 시너지추구 전략군은 상대적으로 낮은 R&D비용을 지출하고 위험성이 낮고 기술수준이 낮은 신제품을 개발하는 전략유형이다. 그리고 신제품전략 유형에 따라서 신제품개발 성과에 가장 많은 영향을 미치는 것은 제품특성(3.4524)이고 그 다음으로 시장특성(3.4470), 기술특성(3.4270) 순으로 나타났다. 따라서 위의 분석 결과들은 IMF시대의 불확실한 경영환경에 대처하면서 기업의 생존 및 번영을 책임지고 있는 신제품개발 담당자들에게 경영적 함의를 제시할 것이다.

• Proceedings of the KIEE Conference
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• 2005.07d
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• pp.2970-2973
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• 2005

본 논문에서 상관관계분석 기술을 이용하여 IP망과 전송망에서 발생되는 장애유형을 패턴화하였으며, 이를 Rule로써 자동처리가 가능하도록 시스템화하였다. 정의된 Rule로 인하여 이벤트 자동분석 및 장애근원 도출이 가능해졌으며, 도출된 근원 이벤트는 운용자에게 이벤트 분류를 위한 수고를 덜어주고, 궁극적으로 신속한 대처가 가능하게 하였다. 알고리듬의 효율성을 보이기 위하여 IP망과 전송망을 대상으로 10여개의 장애유형 표준을 패턴화하고 Rule로서 정의하여 적용한다.

• Electronics and Telecommunications Trends
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• v.13 no.3 s.51
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• pp.84-97
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• 1998

최근 우리나라의 경제 및 산업정책 기조가 수출, 해외진출을 지향하는 방향으로 전환되고 있는 가운데 한국의 통신사업자들도 통신사업의 해외진출이라는 당면과제를 안게 되었다. 이에 본 고에서는 지난 10여년간의 선진 사업자들의 해외진출 행태를 통해 그 유형을 분류하고, 향후 국내 통신사업자의 효과적인 해외진출전략 방향 설정시 요구되는 몇가지 시사점을 제시하였다.