• 한국의상디자인학회지
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• 제21권2호
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• pp.27-41
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• 2019

This study aimed to investigate the influence of fashion lifestyles and consumption values on the difficulty of discarding unused fashion products. To achieve this purpose, this study surveyed female consumers aged 20s-50s to gain empirical analysis in July 2018. Data were analyzed for 236 subjects who were selected through online and offline sampling. The results were as follows. First, consumers tend to have difficulties discarding unused fashion goods. Consumers that have a higher income tend to have greater difficulty when choosing to discard items. Factors influencing the difficulty in discarding items were emotional attachment, usefulness in the future, economic value, and the lack of organizing skills. Usefulness in the future and the lack of organizing skills are the most significant factors influencing the discarding difficulty. Second, discarding difficulty had a significant relationship with fashion lifestyle, indicating that consumers seeking a fashion lifestyle that purchase more expensive brands tend to have more difficulty when discarding items. Third, each factor had a meaningful relationship with fashion goods consumption values. Those pursuing conspicuous value showed a greater difficulty discarding items due to emotional attachment, economic value, and lack of organizing skills. Pursuance of situational value showed a higher discarding difficulty than economic value factors. Pursuance of practical value showed a higher difficulty than both usefulness in future situations and economic value factors. Pursuance of differentiation value showed a higher discarding difficulty than emotional attachment and usefulness in the future factor. This study will help understanding consumers psychological mechanisms that experience difficulty in terms of the discarding of unused fashion goods.

• 가정과삶의질연구
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• 제26권1호
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• pp.85-93
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• 2008

The purpose of this study is to investigate the Korean's value of children and perception of parenting difficulty through the agreement to the three kinds of Korean proverbs: difficulty of parenting, preference of son and value of daughter. Also, this study attempted to identify whether the value of children and the perceived difficulty of parenting measured by the agreement of the proverb is related to the number of children they thought as ideal before marriage and the number of children they actually have. Total 385 married men and women who have a job participated in the survey. Main result is as follows. 1) In most cases, the ideal number of children was at least equal or more than the actual number of children. 2) The subjects showed higher degree of agreement to the proverbs regarding the difficulty of parenting than the preference of son or the value of daughter. 3) The degree of agreement to each kind of proverbs were different in terms of some demographic variables such as age and sex. 4) When the age effect controlled, the ideal number of son had correlation with the agreement to the son-preference proverbs while the ideal number of daughter or total children had no correlation with agreement to any kinds of proverb. The actual number of son was positively correlated with agreement to the son-preference proverbs while actual number of daughter was negatively correlated with it. In conclusion, this study suggests the Korean's value of children has been rapidly changing and it has, in part, an effect on the number of children they want to have or they actually have.

• 지식경영연구
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• 제23권1호
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• pp.47-67
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• 2022

컴퓨터와 인터넷 정보 기술은 현대 서비스 산업과 사람들의 생활 방식을 변화시켰다. 특히 COVID-19의 전 세계적 확산으로 셀프서비스 기술 등 연락 서비스 유형에 대한 관심이 점차 높아지고 있다. 인건비 상승과 소비자 자기인식 제고로 업무 일부를 자체 서비스 기술을 통해 고객에게 이전하는 기업이 늘고 경영환경 속에서 본 연구는 다음의 질문에 답하고자 한다. (1) 셀프서비스기술 환경에서 기술난이도와 안전성 지각이 고객 가치 인식에 어떻게 영향을 미치는가? (2) 고객 가치 인식은 셀프서비스기술의 지속사용의도에 영향을 끼치는가? 본 연구는 327개 표본으로 실증분석을 실시하여 셀프서비스 특성인 기술난이도와 안전성 지각이 고객가치 인식과 지속적 이용의도에 미치는 영향을 검증하였다. 고객이 가치를 인식하고 셀프서비스 기술 사용에서 중요한 역할을 하는 것은 고객의 가치 체험이다. 셀프서비스기술 환경에서 고객이 가치를 인식하여 지속사용의도에 영향을 미친다는 선행연구는 그동안 거의 없었던 바, 본 연구는 고객의 체험가치가 높을수록 셀프서비스 기술을 선호하고 지속적인 이용의도가 높아짐을 실증하였다.

• 디지털융복합연구
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• 제13권4호
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• pp.377-385
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• 2015

본 연구의 목적은 2014 코리아컵 국제체조대회 링 종목 결승전에 참여한 국내외 우수선수를 대상으로 난도 점수, 실행 점수 및 실시기술에 대한 난도요소 분포, 그룹요소별 기술 분포 등에 대한 연기내용을 분석한 융복합연구로서 경기력 향상을 위한 훈련방향 설정과 연기구성 및 기술 습득 전략 수립에 기여하고자 수행하였다. 자료 수집은 경기 성적표와 심판들에게 배포되는 경기결과 자료 및 경기영상을 촬영한 것을 이용하였다. 연기내용 분석 결과에 대한 결론은 다음과 같다. 첫째, 우리나라 선수들의 경기기술은 난도가 높은 힘 버티기 보다는 스윙기에 의존하는 특성을 보였다. 둘째, 스윙기 기술에 익숙한 특성을 살려서 난도가 높은 Jonasson과 Roll bwd. slowly with str. arms and body to swallow(2s.) 기술 습득이 필요하다. 셋째, 버티기 기술과 고난도 기술 습득을 위한 기술 감각훈련 및 근력 강화 프로그램이 개발되어야 한다.

• 산업공학
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• 제18권2호
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• pp.184-192
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• 2005

In recent research there has been intense interest in understanding how real option valuation (ROV) approaches might usefully complement conventional discounted cash flow (DCF) techniques. However, investment decision makers in a real world have been worried about adopting the ROV approaches mainly because of difficulty in technically understanding the theory of the ROV approaches as indicated by many researchers. With this difficulty in mind, we propose the opportunity cost model as another discrete-time model to value a deferral option. The main advantage of observing a real options value in terms of the opportunity cost concept is to provide a technique for practitioners to estimate a wide range of real options values without sticking to a financial option modelling. The fundamental ground for developing the opportunity cost model proposed in this paper lies in the work of dissecting the structure of the real options value into three categories: capital gain, expected opportunity loss, and expected opportunity gain. At the end of the paper, we will present a short illustrative example to demonstrate the applicability of the model.

• 한국경영과학회지
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• 제42권2호
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• pp.35-48
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• 2017

As the technology convergence paradigm emerges, the need for "CIA techniques" to analyze the mutual effects of technology is increasing. However, since the CIA input parameter estimation is difficult, the present study suggests a "CIA input parameter setting model" to alleviate the difficulty of CIA input parameter estimation. This paper is focused on the difference of measurement difficulty by each scale which expert's estimation behavior was defined as measurement activity quantifying the judgment of future technology. Therefore, this model is designed to estimate the input variable as a sequence or isometric scale that is relatively easy to measure, and then converts it into a probability value. The input parameter setting model of the CIA technique consists of three sub-models : 'probability value derivation model', 'influence estimation model', and 'impact value calculation model', in order to develop a series of models the Thurstone V model, Regression Analysis, etc has been used.

• 한국산업정보학회논문지
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• 제27권2호
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• pp.11-24
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• 2022

LMS 기반의 온라인 평가를 위해 출제되는 문제들은 교수자가 직접 출제하거나 또는 카테고리별로 나뉘어진 문제은행에서 난이도에 따른 자동 출제 방식을 주로 이용한다. 이중에서 난이도에 따른 자동출제 방식은 평가자들에게 출제되는 문제가 서로 다를수 있기 때문에 무엇보다 객관적이고 효율적인 방법으로 문제의 난이도를 관리하는 것이 중요하다. 본 논문에서는 문제의 정답률뿐만 아니라 해당 문제를 해결하는데 사용된 소요시간을 같이 고려한 난이도 재조정 알고리즘을 제시한다. 이를 위해 머신러닝의 로지스틱 회귀 분류 알고리즘을 이용하였으며, 학습모델의 예측 확률값을 기반으로 기준 임계값을 설정하여 각 문항별 난이도 재조정에 활용하였다. 그 결과 정답률에만 의존한 문항별 난이도에 많은 변화가 일어남을 확인할 수 있었다. 또한 조정된 난이도의 문제를 이용하여 그룹별 평가를 수행한 결과, 정답률 기반의 난이도 문제에 비해서 대부분의 그룹에서 평균 점수가 향상됨을 확인할 수 있었다.

• 산업경영시스템학회지
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• 제2권2호
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• pp.5-10
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• 1979

For investment calculation of capital assets, it is desirable to grasp the limiting factors of its calculation. The limiting factors can be listed as follows; $\circled1$ difficulty in estimating the service life of capital assets. $\circled2$ difficulty in estimating the receipts, and operating and maintenance expenses of the project. $\circled3$ difficulty in determining common Minimum Attractive Rate of Return. $\circled4$ difficulty in estimating the salvage value of the assets. $\circled5$ some limiting factors on present worth calculation of the projects. $\circled6$ Some limiting factors on payout period method of the economic calculation.

• 한국생활과학회지
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• 제17권3호
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• pp.367-375
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• 2008

The purpose of this study is to examine the mediation effects of relationships of parent-child and between-peers based on the effects of economic difficulty on quality of life of elementary school students. Data was obtained from students (N= 493) at seven elementary schools in Choongbuk Province and analyzed with SPSS 12.0 and Structural Equation Modeling with AMOS 5.0. The major findings are as follows: economic difficulty gives a direct effect on elementary students' quality of life and is mediated with parent-child and between-peers relationships. Also, economic difficulty influences children's quality of life when a parent-child relationship is combined with a between-peers relationship. On the basis of these results, this study suggests that welfare centers and elementary schools have to teach students to have desirable sense of value. Also, schools need to provide education programs for parents to improve parent-child relationship and various activities for students to develop between-peers relationship.

• 산업기술연구
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• 제23권A호
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• pp.63-68
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• 2003

Non-destructive method by tomography for safety diagnosis of civil engineering and building structures is tried. There are traveltime tomography that uses traveltime and fullwave tomography that uses the initial shock and seismic amplitude. But these methods have difficulty and weak points in accuracy and selection of initial value. In this study, corrected inversion method which is able to solve the two difficulty and this method is applied to theoretical pier model to calculate tomography.