• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.329-329
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• 2020

일정규모 이상의 공공건축물에 대하여 빗물이용시설의 설치는 의무화 되어있으나, 빗물이용시설의 용량결정의 관한 기준은 부처별, 기관별로 상이하고, 동일한 기관의 기준내에서도 적용방법에 따라 용량 결정의 기준 범위는 광범위 하다. 본 연구에서는 대전광역시에 위치한 토지주택연구원을 대상으로 빗물이용시설의 물수지 분석을 수행하고, 그에 따른 편익을 용량 및 집수면적별로 산정하여 최적용량 결정을 위한 가이드를 제시하였다. 빗물이용시설의 편익은 우수유출 저감, 폭염 저감, 미세먼지 저감, 조경용수 사용으로 설정하였으며, 대전광역시의 2019년 실제 강우사상을 대상으로 물수지 분석을 수행하였다. 빗물이용시설은 일반적으로 B/C가 낮게 산정되어 경제성 측면에서는 부정적인 평가를 받아왔다. 빗물이용시설의 경제성은 빗물이용시설의 용량에 따른 빗물의 활용정도를 계산하여 산정하였으나, 실제 빗물이용시설의 경제성에 가장 큰 영향을 미치는 요소는 강우패턴과 빗물의 용도에 따른 사용량이다. 강우에 의한 공급량과 빗물의 소비량이 1차적인 요소이고, 2차적으로는 공급량을 수용할 수 있는 정도인 빗물이용시설의 집수면적과 용량, 소비되는 빗물의 용도별 편익에 따라 빗물이용시설의 경제성이 결정된다.빗물이용시설의 설치를 위한 선행단계로 빗물의 사용용도와 그에 따른 사용량을 설정하고, 각 용도에 따라 편익을 설정한 후 용량별 집수면적별 B/C를 산정한다. 이렇게 작성된 B/C 테이블을 현장에 제공하고, 현장여건에 맞추어 공사감독자가 용량을 결정한다면, 기존의 광범위한 용량기준의 문제점을 해결하고, 효율적인 빗물이용시설 용량 결정에 도움이 될 수 있을 것이다.

• Journal of The Korean Association For Science Education
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• v.35 no.5
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• pp.791-804
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• 2015

This study aims to investigate the definition of and factors in decision on socio-scientific issues and to analyze the standards for the quality of decision-making, based on the review of studies in socio-scientific issues. This study analyzed 147 articles published in journals of the social science citation index, and the research method was followed by taxonomy analysis and analytic induction. The results showed that many of the studies did not explicitly articulate the decision-making and only dealt with a specific element of the process, not as a whole. Decision-making was categorized into the steps of identification, option, criteria, information, survey, choice, and review. In terms of the factors, the literature tackled diverse things: science knowledge, nature of science, type of issue, discussion type, belief & values, and culture. This study examined the relationship between the factors and each element of decision-making. Among the relationships, only six kinds were shown as relevant and most of factors were connected to survey. With regard to the standards, the literature relied upon balance, justification and multiplicity since many of the studies made use of Toulmin-based argumentation. This study gives some implications for standards for decision-making regarding the nature of risk and uncertainty.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.1059-1062
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• 2005

본 논문에서 이론적으로 분석하고자 하는 기술포트폴리오 매트릭스는 기술매력성(계속적 개발잠재성, 응용범위, 호환가능성)과 자원강도(지배범위, 잠재성, 반응속도)에 기초한 기술투자 분석 또는 전략적 기술관리를 위한 유용한 의사결정 수단이다. 즉, 기술포트폴리오는 국내기업뿐만 아니라 현지투자기업의 연구개발과 관련된 의사결정을 위하여 활용될 수 있다. 특히, 본 연구에서는 글로벌 기업에 있어서의 본사 및/또는 현지자회사간의 기술포트폴리오 매트릭스를 분석함으로써 글로벌 기업의 기술포트폴리오 관리를 위한 방법을 제시하고자 한다.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.475-483
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• 2018

The purpose of this study based on descriptive research is to examine the convergent relationship of interpersonal competence, self-determination motivation and self-regulated learning ability in nursing students. Data collected from 251 nursing students at a university located in C province from June, 2018 to July, 2018 are analyzed using SPSS/WIN 21.0. As a result, there are positive correlation between interpersonal competence(r=.361, p<.001) and self-determination motivation(r=.466, p<.001) and self-regulated-learning-ability. Interpersonal competence and self-determination motivation have not meaningful relationship(r=.091, p=.148). It is turned out that interpersonal competence and self-determination motivation are influenced on the self-regulated learning ability respectively. Based on these results, research should be continued on the developing new educational methods through convergence of factors by analyzing relevant factors to enhance interpersonal competence and self-determination motivation that affect self-regulated learning ability.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.112-115
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• 2013

Recently, a great attention has been paid to a car black box device in the automobile markets besides it provides an accident re-construction based on the data which contains audio, video, and some meaningful driving informations. Also, it is expected that the device will get to promote around public transit and the market will greatly grow within a few years. Thus, this research conducted of preference the influencing factors in decisions purchase of auto black box. Factors influencing in decisions purchase of black box was divided safety, functionality, differentiation, economics. Questionnaire survey was conducted to those who worked in black box company. This study suggests practical and theoretical implications of factors influencing in purchase decisions based on the results.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.11
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• pp.2238-2249
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• 2015

The purpose of this study is to analyze the relations of innovation and productivity following the introduction of ICT and the effects in the process of innovative investments activity-innovation-productivity, not only by finding causes and effects. For this purpose we conducted surveys of SMEs classified into 7 categories by type of business. To put it concretely, this study was performed to find out the foactors which allow companies to secure competitiveness by enhancing of innovative measures through ICT, and to further analyze the political implications for the development of small and medium-size business by conducting an empirical analysis of the process, from the determination of innovative investments all the way through to production. Analysis model used CDM model using econometric methods such as multiple regression analysis and multinominal logit analysis to produce results. Also we established and analyzed models of innovation investment determinants, innovation determinants and productivity determinants to analyze specifically the relations between ICT and productivity.

• Journal of the Korea Convergence Society
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• v.12 no.4
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• pp.135-140
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• 2021

The present research intends to examine how college students' self-determination affects their beliefs in and achievement in foreign language learning in the current pandemic times. The data under discussion was collected from a survey questionnaire conducted to a group of 107 students attending at a four-year university in Cheonan. With the software SPSS Version 21.0, a set of statistical methods were employed: (i) descriptive statistics along with (ii) correlation analysis and (iii) regression analysis. The current analysis identified a positive correlation between their self-determination and both beliefs Foreign Langage Learning and Learning Outcomes, which means that the former exerts a significant impact on the latter. The results are expected to help educators arrange strategic plans that can enhance collegians' self-determination for their better performance of foreign language learning.

• Journal of Industrial Convergence
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• v.22 no.2
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• pp.1-12
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• 2024

This study investigates what decisions have an impact on bank performance. A panel regression analysis was conducted using data from the financial statements of banks located in the United States from 2013 to 2022, and the effects of explanatory variables were examined through hierarchical panel regression analysis divided into financial decision-making and management decision-making. In addition, by analyzing performance separately from the creditor and shareholder perspectives (hereinafter referred to as overall) and from the shareholder perspective alone, it suggests which elements should be utilized and how to improve performance from each perspective. When a panel regression analysis was performed using only liquidity and stability, dependency on deposits and the interest coverage ratio had a statistically significant impact from the perspective of overall performance, and the debt ratio also had a statistically significant impact from the perspective of shareholder performance. When adding non-technical factors, only the labor cost ratio among non-technical factors was found to be statistically significant from the overall performance perspective, and although the non-technical factors were not statistically significant from the shareholder performance perspective, the cash ratio was found to have a statistically significant impact. Lastly, when adding technical innovation elements, the intangible asset ratio was not statistically significant from the overall performance perspective, but was significant from the shareholder performance perspective. The significance and implications of this study are that there are differences in factors that can affect the performance of overall or shareholder and that various decision-making factors can affect a bank's performance.

• 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.

• Journal of Internet Computing and Services
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• v.10 no.3
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• pp.1-8
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• 2009

The primary tasks of a workflow management system specify workflow models with respect to resource, control-flow, data-flow, functional, and operational perspectives, and to enact their workcases (workflow instances). In terms of enacting workflow models, the essential criterion grading the quality of the system is "how much is the system able to guarantee the correctness of workflow models' enactment?". Particularly, the workflow determinacy problem, which may be caused by the interference of the control-flow and the data-flow specifications, is the most challenging issue in guaranteeing the correctness of the system. We are able to solve the problem by either of the following two approaches-analysis of workflow model and verification of workflow enactment. In the paper, we propose a technique that guarantee the system's correctness through verifying workflow enactment. In other words, the technique is able to detect the conflicts of control-flow and data-flow enactments existing on a workflow model, which causes the system to be non-determinant in enacting workflow models. Finally, by applying the technique to the e-Chautauque workflow management system developed by the authors' research group, we prove that the technique is a feasible solution for the workflow determinacy problem.