• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.532-537
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• 2007

Experimental trials were conducted using computer simulation to investigate driver's cognitional process of signals at differential speed limit. The Korean railway safety law, as it stands, is not stated the driver requirement about cognitive abilities which are able to make a positive reaction at different types of speed. Therefore, some effective alternatives suggested in this study may be used as basic data for supporting the Korean railway safety law.

• 한국시스템다이내믹스연구
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• 제13권1호
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• pp.113-131
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• 2012

Applying social network analysis techniques, this study examines complex system characteristics of industry-university joint research R&D networks. In specific, it focuses on whether these R&D networks comply with the power law, whose system typically presents the-rich-get-richer and the-poor-get-poor patterns. The basic data come from 7,751 industry-university joint research projects, all of which were carried out by Daejeon, Chungbuk, and Chungnam-based universities from January 2005 to October 2008. The empirical results reveal that the R&D networks abide by the power law. That is, a handful of business units and universities command an overwhelming majority in the joint links, indicating positive feedback dominance within the system.

• 한국임상보건과학회지
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• 제5권4호
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• pp.1032-1039
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• 2017

Purpose. The purpose of this study is to understand the stress of rural mothers-in-law by identifying the nature of their stress experiences with highly educated foreign daughters-in-law using phenomenological methods, and to provide basic data on nursing intervention plan. Methods. The method of this study is to first examine the relationship between marriage and marriage of highly educated immigrant women in Philippines, centered on the nuclear family, through literature reviews such as existing media reports, papers, books and reports, and then to analyze by using Colaizzi's phenomenological research methodology. Results. The results of this study were based on interviews with an elderly women who lives in a rural area and accepted a highly educated foreign daughter-in-law 10 years ago. The essential themes that fit into the context of the 4-existential grounds of Making an Inevitable Choice, Augmenting Conflicts, Expecting hope beyond the endless fence, Crisis in Crisis - Still my family Conclusions. Recently, interest in multicultural families and societies is growing, but there is little empirical study of the system for adopting international marriages, especially for rural mothers to live with foreign wives and to intake such cultural interactions.

• 한국컴퓨터정보학회논문지
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• 제19권8호
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• pp.161-168
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• 2014

이 연구에서는 공학 계열의 법학 교육 효율화를 위한 인식조사를 시도하였다. 이는 최근 들어 우리 대학들에서, 특히 공학인증과 관련하여 공업법규 등의 교과목을 필수 이수 과목으로 지정, 이수케 하고 있는 현실을 반영하여, 공학계열 학생들에게 보다 효율적인 법학 교육의 방법을 탐색하기 위함이다. 연구 방법은 선행 연구들에서 추출하여 조작한 설문을 중심으로, C대학교 공과대학의 재학생 180명을 최초 표본으로 선정하여, 이 과정에서 불성실하게 응답한 19명의 자료를 제외한 161명의 자료를 최종 유효 표본으로 선정, 분석하여 연구 결과를 도출하였다. 구체적인 연구 결과는 다음과 같다. 공학계열의 법학 교육의 경우 여성 보다는 남성이, 재수강 학생 보다는 처음 수강한 학생이, 법과사회 및 법학개론 등의 기초 법학 과목을 수강했던 경험이 있는 학생이, 전공 분야로의 취업을 희망하는 학생들의 각각 수업 집중도 및 만족도가 높은 것으로 조사되었다.

• Bulletin of the Korean Chemical Society
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• 제30권8호
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• pp.1749-1754
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• 2009

Solubilities of carbon dioxide (C$O_2$) in a series of fluorine-free room temperature ionic liquids (RTILs), dialkylimidazolium dialkylphosphates and dialkylimidazolium alkylphosphites, were measured at 313∼333 K and pressures up to 5 MPa. Henry’s law coefficients as the solubility parameter of C$O_2$ in RTILs were derived from the isotherm of fugacity versus C$O_2$ mole fraction. The C$O_2$ solubility in a phosphorus-containing RTIL was found to increase with the increasing molar volume of the RTIL. In general, dialkylimidazolium dialkylphosphate exhibited higher absorption capacity than dialkylimidazolium alkylphosphite as long as the RTILs possess an identical cation. Among RTILs tested, 1-butyl-3-methylimidazolium dibutylphosphate [BMIM][B$u_2PO_4$] and 1-butyl-3-methylimidazolium butylphosphite [BMIM][BuHP$O_3$] exhibited similar Henry’s law coefficients to 1-butyl-3-methylimidazolium bis (trifluoromethylsulfonyl)imide ([BMIM][T$f_2$N]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][B$F_4$]), respectively. The Krichevsky-Kasarnovsky equation was employed to derive the C$O_2$ solubility parameter (Henry’s law coefficient) from the solubility data measured at elevated pressures.

• 한국식생활문화학회지
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• 제28권2호
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• pp.177-185
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• 2013

This study analyzed restaurant table settings with Gestalt's law of visual perception to obtain basic data for future marketing strategies. The research uses methods that involve applying images of restaurant table settings to Gestalt's law of visual perception, doing content analysis, and conducting a frequency analysis as well as a Chi-square test for classification analysis by visual perception. Results show a significant difference in the laws of visual perception, especially in the laws of nearness and closure, between table settings of different countries and backgrounds, such as Korean, Japanese, Chinese, Western cultures. In terms of the law of nearness, Chinese dishes were low, while other countries' dishes and Korean dishes showed high figures. In terms of the law of closure, Japanese dishes and western dishes had low values, while other countries' dishes and Korean dishes were high in their closure. Further studies on consumer awareness by visual perception classification need to be conducted.

• 한국농촌건축학회논문집
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• 제17권1호
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• pp.45-54
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• 2015

This study is about the Type classification of architectural assets in Seosungro (one of the 4 Roads of Rampart in Junggu, Daegu), the main stronghold of Urban Regeneration projects according to the recent Urban Regeneration law. The purpose of this study is to suggest the basic data about Operation management method of Original Downtown modern buildings and valuable hanok, and Conservational Regeneration of Architectural property of Urban Environmental Improvement and Architectural assets. By researching, analysing the feature and classifying the type of the buildings in Seosungro, The type classified Conservation plan can be suggested. The Types of the Architectural assets will be the basic data of the application plan of modern buildings which is for the urban regeneration, and this can predict the quantity and the demand of the building for effective urban regeneration, and also can be an effective Urban regeneration policy data.

• Journal of the Korean Physical Society
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• 제73권10호
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• pp.1431-1436
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• 2018

We study the scaling of the price fluctuation in the Korean housing market. From the numerical analysis, we show that the normalized return distribution of the housing price, P(r), has a fat-tail and is well approximated by a power-law, $P(r){\sim}r^{-({\alpha}+1)}$, with ${\alpha}{\simeq}3$ for the whole data set. However, if we divide the data into groups based on the trading patterns, then the value of ${\alpha}$ for positive tail and negative tail can be different depending on the trading patterns. We also find that the autocorrelation function of the housing price decays much slower than that of the stock exchange markets, which shows a unique feature of the housing market distinguished from the other financial systems.

• 한국환경과학회지
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• 제18권10호
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• pp.1079-1088
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• 2009

The statistics of monitoring on soil quality is a report statistics which is made on the basis of Article 15, Environment Strategy Basic Law and Article 5, Soil Environment Conservation Law. This study was conducted according to quality assessment of Korea National Statistical Office. The assessment of quality infrastructure advised that the authority bring up and increase completely responsible officer and secure the budget. The assessment of user satisfaction and reflection of request propose that the statistics is focused on soil background concentration, decrease soil sampling points and extend survey period. The assessment of error management system per processes of detailed preparation suggest change of the statistics objective, a reduction of sampling points and improvement of survey period and soil measurement properties. Accuracy assessment of data proposed cuts of sampling points, accessibility increment and build up of management system linking subordinates and Ministry of Environment. The substantiality assessment of data service demonstrated information environment improvement for users including reference expression and records of statistics table and figure contents.

• 무역상무연구
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• 제47권
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• pp.239-260
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• 2010

The purpose of this study would like to investigate the critical success factors of the e-procurement which means on-line purchase of goods and services for organizations. This action represents one of the largest expense items in a firm's cost structure. In order to draw CSFs of e-procurement system, we have surveyed questionnaire to the related firms. The basic variables used in this survey are taken from many precedent researches in relation to the e-procurement. On the other hand, the research data is collected from companies which had used the MRO e-marketplace. Through factor analysis of those data, four-factor resulted as follows: (1) factor one suggests the rationalization of the firm's management of its suppliers; (2) factor two calls for redesigning affected business processes and influencing end-user/employee procurement-related behaviors; (3) factor three refers to carefully orchestrating an e-procurement technology planning process with one's suppliers and using intelligence in designing the software and mining the data it produces; and (4) factor four relates to selecting an e-procurement solution and/or simultaneously participating in a number of electronic environments supporting e-procurement. In conclusion, these four factors are regarded as critical success factors for the application of e-procurement system and then suppliers should take care the effective planning of e-procurement structure.