• The Korean Journal of Financial Studies
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• v.7 no.1
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• pp.171-195
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• 2001

본 연구의 목적은 실물옵션이론을 바탕으로 정유회사의 가치평가기법을 제공하는 것이다. 정유회사는 가치평가를 위해서 회계적 가치외에 관리적 유연성(managerial flexibility)을 고려해야 하기 때문에 기존의 DCF방법을 적용하기 보다는 실물옵션방법을 이용하여야 한다. 관리적 유연성은 회사관리자가 적용가능한 생산관리적 기법으로서 회사의 미래현금흐름에 영향을 주고 따라서 회사의 가치에 영향을 미친다. DCF방법은 이러한 관리적 유연성을 적절히 고려하지 못하여 회사의 가치를 저평가하는 오류를 발생시킨다. 반면 실물옵션방법은 관리적 유연성을 가치평가에 있어서 주요 변수를 인식하기 때문에 정확한 가치평가의 수단이 된다. 옵션가격결정을 위한 기초자산은 크랙스프레드(crack Spread)이다. 크랙스프레드는 경유(heating oil)와 무연휘발유(unleaded gasoline)의 가격과 원유(crude oil) 가격의 차이를 나타내며 정유회사의 정유순익(gross refining margin)을 대표한다. 실물옵션방법에 의한 정유회사의 가치는 DCF방법에 의한 가치보다 두 배가 크다는 결론을 제시한다. 즉 관리적 유연성이 존재하는 회사의 경우는 가치평가에 있어서 실물옵션방법을 이용하여 가치를 저평가하는 오류를 범하지 않아야 한다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.32 no.7
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• pp.1153-1163
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• 2003

The purpose of this study was to evaluate the patients' satisfaction with the quality of hospital food service in Busan area. For the purpose, questionnaires were distributed to 271 hospitalized patients in 4 hospitals (three hospitals for self-operated foodservice, one for contracted foodservice) within 130 beds. The average scores were -0.99/5.00 for quality satisfaction of meal characteristics, -0.68/5.00 for service characteristics, and -0.37/5.00 for nutrition characteristics. The items of low scores in quality satisfaction were treatment of complaints, nutrition of meals, provision of nutritional information, the seasoning of the meals, selective menu, and sanitation of the meals. At the expectation and perception grid, high expectation and high perception items were cleanliness of employees' clothes, cleanliness of dish, employees' courtesy, exactness of meal time, and sanitation of the meals. High expectation and low perception items were treatment of complaints and nutrition. The patients with little appetite showed significantly (p<0.01) lower average scores in meal, service, and nutrition characteristics than those with much appetite. The self-operated foodservice operation had significantly (p<0.01) higher average scores in meal, service, and nutrition characteristics than those of the contracted foodservice operation. The patients hoped to improve the taste of cooked rice and side dish, quantity of the side dish, variety of menu, and sanitation of the meals.

• Journal of The Korean Association of Information Education
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• v.11 no.4
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• pp.517-528
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• 2007

The purpose of this research is to examine the difference between the Importance-Performance of parents' perception in an Information and Communication Technology(ICT) environment for young children. The researchers reviewed the literature looking at activating factors in an ICT setting such as young children, teachers, parents, physical environment, social support and administrative supports. As a result of Importance-Performance Analysis(IPA) matrix participating with 459 parents, it was noted that the young children, physical environment and administrative support factors are the most crucial in activating ICT environment at home. This implies that fostering individual children's ICT ability is required as soon as possible to access the right information and to work on line certainly for their future.

• Journal of Practical Engineering Education
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• v.13 no.2
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• pp.271-281
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• 2021

This study aimed to investigate the perception of education consumers about the vocational high school credit system. The researcher analyzed the survey data collected from students, parents, and teachers of vocational high schools located in the A metropolitan city, and a total of 981 responses were analyzed: 541 students, 261 parents, and 179 teachers. One-way ANOVA and χ² test were performed using IBM SPSS 21. The results are as follows. First, in all responses of perception of the vocational high school credit system, the mean difference between groups was statistically significant, and differences between teachers-students, and teachers-parents were found. Second, the mean difference between groups in the need for early graduation in curriculum implementation was statistically significant, and the mean of students was higher than that of parents and teachers. Third, the mean difference between groups in teachers' use of multiple teaching methods under class management and evaluation was statistically significant, and the means of parents and teachers were higher than that of students.

• Journal of The Korean Association For Science Education
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• v.32 no.7
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• pp.1139-1156
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• 2012

The purpose of this study was to investigate students' and mentors' perceptions of Research and Education (R&E) programs in science high schools and science academies. The sample included 1,466 science high school/science academy students and 310 mentors. They filled out the survey, which consisted of the perceptions of R&E performance procedures (Selecting a topic, Learning topic-related knowledge, Designing and performing the research study, and Evaluating and presenting results), and R&E environment (Research period, meeting opportunities with mentor/subject, learning/experimental environment). The results showed that differences existed in the perceptions of R&E performance procedures and R&E environment, especially on selecting topics and learning topic-related knowledge stages. At the end of the paper, suggestions were included for improving R&E.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.1
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• pp.227-235
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• 2016

As various measures of law observance obligations such as mandatory obligation of privacy impact assessment (PIA) for public institutions and authorization of information security management system (ISMS) are put into practice, increase in demand for information security consulting and securement of information security consultants are emerging as a major issue. The purpose of this study is to empirically investigate what core competencies information security consultants should possess and how much they actually possess them. By analyzing the differences in perception between practitioners and managers on core competencies, this study understands difference of views between the two groups and suggests ideas for cultivation of information security consultants.

• Journal of The Korean Association For Science Education
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• v.20 no.3
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• pp.468-478
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• 2000

In this study, the effects of a teaching strategy based on interactive formative assessment on students' science concept understandings and science-related attitudes were investigated. Students' perceptions toward this teaching strategy were also examined. Eight classes chosen from a co-ed middle school in Seoul. Four classes were assigned to the experimental group and the other four classes were assigned to the control group. After the instructions, tests regarding students' conceptions and science-related attitudes were administered. We also interviewed 24 students randomly chosen from the experimental group to investigate their perceptions toward the teaching strategy used. The results showed that the teaching strategy used was more effective for enhancing students' science concept understandings. However, there was no significant difference in science-related attitudes between the two groups. For the experimental group, no significant differences were found in the gain scores of the conceptions tests between the subgroups by previous achievement or cognitive levels. From interviews, it was found that students thought that the teaching strategy used encouraged much interactions and motivated them to think, and that teacher's appropriate feedbacks were helpful to their understanding scientific concepts.

• Journal of Science and Technology Studies
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• v.15 no.2
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• pp.163-189
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• 2015

While Science tries to be far from Society, it actually does yearn for the trust from Society, on the other side. Its efforts getting back the trust has been witnessed with its fast evolution, consistent distrust from Society and Scientists' accountability with investment of public fund. Furthermore, many scholars have argued that there is the need to integrate science and society. In this regards, this paper explores how to integrate both spheres by participatory evaluation. To identify how the participatory evaluation works and should be, three main issues are mentioned. One is about evaluation methods; Objective-oriented and Behaviour aspects. Second is about prerequisite factors; sharing scientific language and changed recognition between civil society and scientists. Third is about challenge to be tackled; epistemological gap among evaluators and complex index. Under these issues, this paper sets out that the participatory evaluation should adopt the appropriate evaluation methodology. Last but not least, self-recognition and motivation by evaluators themselves are important factors, along with societal system which can take participatory evaluation.

• Journal of the Korean School Mathematics Society
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• v.18 no.1
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• pp.83-102
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• 2015

This study would suggest to analyze the perceptions of good mathematics teaching in high school and offer the resolutions for the conflicts caused by differences in perception between teachers and students in math class through previous studies and comparative implications. To this end, Students are classified by their courses, grades, gender awarenesses and they were analyzed and compared by the survey results. Although the preference for the math class that fixs the misconception of students is highest, regardless of the kinds of students groups. Academic students, middle-ranked students, female students have high affinity for the class to evaluate the material covered in class and take into account their level of assessment and instruction, low-ranked student's preference is higher for the class that has focused on understanding communicating their thinking processes than students. From this, it is suggested that academic students, low-ranked students are needed to be taught in a way that increases their confidence, interests, values and also in atmosphere that make math class a positive experience.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2009.05a
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• pp.91-94
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• 2009

기업의 경쟁력 제고를 위한 브랜드 커뮤니케이션의 중요성이 높아지고 있는 가운데, 판매-소비 인터페이스의 최전선에 있는 패키지 디자인의 역할과 비중이 커지면서 패키지가 곧 브랜드라는 인식이 생기고 있다. 소비자가 패키지를 통해 느끼는 감성은 시각적 경험이 발생하는 시점과 환경에 따라 달라질 수 있다. 특히, FMCG의 경우, 광고를 통해 축적된 제품에 대한 긍정적 이미지는 실제 매장에서 여러 제품과 동시에 노출되었을 때 제품에 대한 느낌이 상쇄될 수 있다. 본 연구에서는 감성경험조건의 차이 즉, 패키지의 노출조건에 따라 감성의 차이가 발생한다는 가설을 세우고, 이를 검증하기 위한 온라인 실험환경을 구축하였다. 실험시나리오를 바탕으로 플래시 툴을 활용하여 인터랙티브한 실험컨텐츠를 제작하고, 평가값은 PHP 를 통해 DB 에 저장하였다. 저장된 데이터는 SPSS로 통계분석을 시도하였다. 본 실험을 통해 독립 노출과 군집노출에 따라 감성의 차이가 발생하며, 감성차이에 영향을 주는 요인으로서 컬러와 타이포그래피가 주된 요인이 된다는 점을 알 수 있었다.