• Proceedings of the Korean System Dynamics Society
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• 2000.07a
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• pp.135-152
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• 2000

지배적 피드백 루프는 구조가 시스템의 행동을 유발한다는 점에 있어서 매우 중요한 개념이다. 본 논문에서는 지배적 피드백 루프의 전환을 완만한 전환(continuous shifts)과 급격한 전환(discrete shifts)의 두 가지로 분류하였다. 본 연구에서는 지배적 피드백 루프의 전환에 대한 인지적 편향을 세 가지의 가설로 분류하여 제시하였다. 이에는 1) 완만한 전환에 대한 인식의 실패, 2) 의사결정 자들의 급격한 전환에 의존하는 경향, 3) 지배적 피드백 루프의 인식에 있어서 수준변수와 변화율 변수간의 차이 등이 포함된다. 마지막으로 본 논문에서는 지배적 피드백 루프에 의한 인지적 편향이 의사결정과정의 시간지연과 정책 개입의 시기에 대하여 어떠한 시사점을 주는지에 관하여 논의하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.14-16
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• 2019

명시적지식(Explicit Knowledge) 및 암시적지식(Implicit Knowledge) 등 외국어학습 이론을 적용한 선박교통관제사 영어교육 개선 방향을 연구하여 선박교통관제사 현장직무교육의 실효성을 증대하는 등 선박교통안전강화의 기반을 마련하고자 하였다.

• Journal of the Korean association of regional geographers
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• v.13 no.6
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• pp.651-673
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• 2007

In the studies on residential move, there has been tendency of dichotomy where short distance moves are largely caused by housing to adjust to changes in households while long distance moves are induced by shift in labor market. However, some empirical studies have proven that residential move is so complex process that the simple dichotomy should be elaborated. In this sense, the present study seeks to identify compounded course of residential move in Korea. In determining migration history, families with younger householders, renters, householders with higher educational attainment and smaller households show a higher probability to move. In case of mobility, women were more prone to move compared to man. Women compared to man, older age augmented the probability to own a house after migration. Families with householders following an occupation of sales and technical service showed lowest tendency to own houses while it marked the highest in the group of professionals. Higher land price of a region was negatively related to owning houses after migration. The present study revealed that factors in macro level as well as micro level significantly affect the move of individuals with varying effects in accordance with migration history.

• Journal of the Korea institute for structural maintenance and inspection
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• v.13 no.4 s.56
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• pp.170-179
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• 2009

Channel-type lining board(CLB) is a welded steel structure used in the field of open cut subway excavation and building basement construction. Lining board is generally installed at the underground environment which is exposed to corrosion factors such as humidity, temperature and corrosive gases. This study evaluates reusability of the corroded lining board by experimental and analytical method. Static loading tests were performed to know serviceability of corroded CLB after checking thickness loss of the used CLB parts. Strain of the plates and middle point deflection was measured simultaneously. According to experimental test results and comparison with numerical analysis, the thickness loss of the plates by corrosion makes more vertical displacements and stresses in members under the DB vehicle load considering impact factor. As a result, this paper is proposed a way to evaluate used and corroded CLB by checking the plates thickness and it makes construction engineers easy to know optimal time to replace their old CLBs with new one.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.4
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• pp.698-709
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• 2016

Career maturity and the acquisition of entrepreneurial knowledge are important in entrepreneurship education for youth, and the environments surrounding youths influence their mental state and academic achievement. This study aims to analyze the influences of an educational program and environment in entrepreneurship education for youths on the mindset and the entrepreneurial intention for proper career decisions according to the education climate and entrepreneurial knowledge. A total of 216 questionnaires were collected from students who participated in a creative and entrepreneurial tour of Incheon. After excluding 30 questionnaires with unreliable responses, 186 were empirically analyzed using SPSS 18.0 and Amos 18.0. The results show that the quality of education service and education environment decide the education climate, and the entrepreneurial knowledge has a positive influence on entrepreneurial intention. This research is significant because it strategically establishes directions for entrepreneurial education and as practical research for achieving outcomes of entrepreneurial education.

• 한국벤처창업학회:학술대회논문집
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• 2023.11a
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• pp.187-192
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• 2023

1990년대 후반 정부는 경기부양의 일환으로 창업보육센터(Business Incubatir: BI)를 전국에 설치·운영하도록 지원하였다. 창업보육센터를 통해 벤처기업이 스스로 자생력을 갖출 수 있는 시기까지 시설, 기술, 행정, 경영지원 뿐만 아니라 입주지원까지 다양한 지원 역할을 수행해오고 있다. 특히 창업보육센터의 교육프로그램은 입주업체들의 기업 성장에 있어서 매우 중요한 역할을 한다. 이러한 창업보육센터의 교육프로그램이 기업 성과에 영향을 미치는 요인으로 최근 조직문화에 대한 관심이 고조되고 있다. 조직문화는 스타트업을 움직이는 심장이며 그 영향력은 실핏줄을 타고 회사의 가장 사소한 결정에까지 미친다. 조직문화마저 없다면 스타트업은 제품, 브랜드 무엇 하나 제대로 갖추지 못한 그저 꿈을 쫓는 집단에 지나지 않을 것이다. 본 연구는 창업보육센터의 교육프로그램 서비스품질 구성요인 인 유형성, 신뢰성, 반응성과 스타트업에게 중요한 원동력이 되는 실천중심설계가 교육만족, 조직문화 및 조직성과에 미치는 영향에 대해 살펴보고 아울러 교육만족이 조직문화에 조직성과에 미치는 영향에 대해 연구를 진행하고 가설을 검증함으로써 학문적, 실무적으로 유용한 시사점을 도출하고자 한다.

• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.367-384
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• 2014

This study addresses an empirical issue which has been received little attention in the contemporary finance literature: To identify any financial determinants of the profitability indices for the firms belonging to the Korean chaebol. Three hypotheses of concern were postulated and tested for the sample firms covering the periods of the pre-and post-financial global crises. Regarding the results on the 1st hypothesis test of characterizing any financial profiles for the firms (belonging to the chaebols) by estimating a legitimate panel data model: the present study found the statistically significant relationships of the explanatory variables (BVLEVl, MVLEVl, MV/BV, RISK, FCFF and FOS) with the book-value based profitability ratio: while the market-valued profitability index was explained only by BVLEV2. Regarding the 2nd hypothesis test for the profitability of the sample firms at the industry level: the chaebol firms in the chemical and the food industries overall positioned themselves into the top ranks in order, which was tested by the ANCOVA and the Tukey multiple comparison procedure. Finally: on the 3rd hypothesis test for the 'adjusted' Dupont system, only two such as the 'operating margin' and the 'asset turnover' showed their significant effects between the chaebol firms and their counterparts in both the (parametric) independent samples t-test and the (nonparametric) Wilcoxon-Mann-Whitney statistics.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2010.04a
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• pp.429-431
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• 2010

태풍 및 지형에 대한 컴퓨터 시뮬레이션과 기상관측자료에 대한 분석을 통해 장대교량의 가설위치에서 발생할 수 있는 풍환경을 분석하고 설계풍속을 산정하였다. 설계풍속의 산정은 내풍 설계를 위한 하중을 결정하는 과정으로 내풍설계의 기본이 되는 부분이다. 풍환경 분석 과정은 Monte Carlos(이하 MC) 태풍 시뮬레이션 분석, Gumbel 극치분석, CFD 지형효과 분석으로 구성된다. MC 태풍시뮬레이션 분석을 통해 태풍시기(6~10월)의 재현주기별 강풍발생빈도를 도출하였다. Gumbel 극치분석을 통해 인근의 기상관측자료로부터 전년도에 대한 재현주기별 강풍발생빈도를 도출하였다. CFD 지형효과 분석을 통해 분석대상지역의 주변지형으로 인한 풍속증감효과를 분석하였다. 각 결과를 종합하여 보수적인 재현주기별 설계풍속을 산정하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.5
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• pp.1243-1250
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• 2007

Hotel Information Systems(HIS) has been used widely nowadays. Also, there is a requirement to connect Customer Relation Management(CRM) with the HIS. However, Hotel managers simply regard CRM as a part of HIS but, CRM is a crucial information system like MRP in factory. Therefore, It is important to set up a long term strategy for CRM in Hotel business. This study tested five hypotheses how requirement of CRM changes along increasing usage level of HIS in Hotels. Statistical test and structured test by AMOS were used to verify the five hypotheses so that I could extract HIS' characteristics. This study's results can be referred when Hotel managers make a decision how and when for CRM.

• The Journal of the Korea Contents Association
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• v.13 no.11
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• pp.829-844
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• 2013

This study performed comprehensive tests on the four hypotheses on the capital structures for the firms listed in the KOSPI during the period from 2006 to 2011. It may be of concern to find any financial profiles on firms' leverage across the book- and market-value bases since there was relatively little attention drawn to any financial changing profile of the leverage surrounding the period of the pre-and the post-global financial crises. The findings of this study may also be compared with those of the previous related literature, by which it may be expected to enhance the robustness and consistency of the results across the different classifications on capital markets. It was found that three explanatory variables such as PFT, SIZE, and RISK, were found to be the statistically significant attributes on leverage during the tested period. Moreover, the outcome by the Fisher Exact test showed that a firm belonging to each corresponding industry may possess its reversion tendency towards the industry mean and median leverage ratios.