• Communications of Mathematical Education
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• v.29 no.1
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• pp.131-155
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• 2015

The purpose of this study is to investigate if top-ranked high school students do integrated understanding about the concept of a differential coefficient. For here, the meaning of integrated understanding about the concept of a differential coefficient is whether students understand tangent and velocity problems, which are occurrence contexts of a differential coefficient, by connecting with the concept of a differential coefficient and organically understand the concept, algebraic and geometrical expression of a differential coefficient and applied situations about a differential coefficient. For this, 38 top-ranked high school students, who are attending S high school, located in Cheongju, were selected as subjects of this analysis. The test was developed with high-school math II textbooks and various other books and revised and supplemented by practising teachers and experts. It is composed of 11 questions. Question 1 and 2-(1) are about the connection between the concept of a differential coefficient and algebraic and geometrical expression, question 2-(2) and 4 are about the connection between occurrence context of the concept and the concept itself, question 3 and 10 are about the connection between the expression with algebra and geometry. Question 5 to 9 are about applied situations. Question 6 is about the connection between the concept and application of a differential coefficient, question 8 is about the connection between application of a differential coefficient and expression with algebra, question 5 and 7 are about the connection between application of a differential coefficient, used besides math, and expression with geometry and question 9 is about the connection between application of a differential coefficient, used within math, and expression with geometry. The research shows the high rate of students, who organizationally understand the concept of a differential coefficient and algebraic and geometrical expression. However, for other connections, the rates of students are nearly half of it or lower than half.

• Journal of Radiation Protection and Research
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• v.5 no.1
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• pp.11-25
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• 1980

The increasing utilization of radioactive isotopes in industry, medicine and research has raised the question, 'How should hospitals deal with radiation injuries when they occur?' A system for initial management of radiation injuries has been developed by Radiation Management Corporation. Radiation injuries are classified and a treatment plan outlined for each at the emergency and short term medical care phase. This system includes clinical prognosis as well as a detailed plan for quick set up or a Radiation Emergency Area in any hospital. Procedures for patient admission, preparation of the facility, general decontamination, sample taking, and wound decontamination are included.

• Knowledge Management Research
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• v.3 no.2
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• pp.1-16
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• 2002

The main theme of this study is to observe a company which renewed itself and turned around out of organizational decline. Innovation is one crucial factor for organizational renewal. This study address a research question that how this innovation could be sustained without intermission. This study finds an answer from building an neuro-cybernetic innovation system. LG Display Company was analyzed as a case.

• Korean Journal of Mathematics
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• v.25 no.1
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• pp.61-70
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• 2017

In this paper, we introduce the concept of statistically sequentially quotient map which is a generalization of sequence covering map and discuss the relation with covering maps by some examples. Using this concept, we give an affirmative answer for a question by Fucai Lin and Shou Lin.

• Proceedings of the KWS Conference
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• 2002.10a
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• pp.15-22
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• 2002

The modern welding technology hue more then 100 years history, and during that period, the welding has been playing an important role in the development of the manufacturing processes/systems as a key technology. In the time we enter the 21st century, it is question how to develop the innovative and attractive welding technology, in particular by the younger generation. The present report discussed the future trend of welding engineering mainly in Japan after reviewing the previous growth of welding engineering.

• Journal of the Korean Operations Research and Management Science Society
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• v.15 no.2
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• pp.97-104
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• 1990

The problem is a variation of the weighted set-covering problem (SCP) which requires the minimum-cost cover to be self-covering. It is shown that direct extension of the well-known greedy heuristic for SCP can have an arbitrarily large error in the worst case. It remains an open question whther these exists a greedy heuristic with a finite error bound.

• Proceedings of the Korea Contents Association Conference
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• 2017.05a
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• pp.459-460
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• 2017

The research proposes theoretical recommendations for Smart City that targets elderly citizens. The elderly citizens in question are people currently in their mid-50s to early 60s, in order to adequately employ futuristic technologies into four major sectors: healthcare, post-retirement employment, community-based governance, and environment-friendly infrastructure. The research concludes that the technical application of welfare to the elderlies through constructing a purposeful Smart City is desirable, environmental consideration should come in prior concern as a sustainable foundation.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1993.06a
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• pp.1317-1320
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• 1993

We are concerned with developing a robust method for comprehensive scene analysis. In particular, we address the problem of representing spatial relations between regions in a segmented 2D image. Spatial relations are modeled as fuzzy sets. The method has two aspects, symbolic and quantitative, consisting of assigning labels for spatial relations and numeric degrees to which a relation holds respectively. The procedure of deriving a spatial relation is hierarchical taking into account geometric/physical characteristics of the regions in question.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 1995.11a
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• pp.11-14
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• 1995

The question of recruitment qualification and standardization of VTS operators is reviewed through comparison with Air Traffic Control(ATC) The comparison reveals greater difference between the two services than commonality. While ATC enjoys a high degree of uniformity nationally and internationally the provision of VIS is dictated by varying local needs. The variety of those needs makes standardization of VTS operation a questionable short term objective. The paper concludes problem solving techniques such as the formal appreciation provide means of matching recruitment and qualification to local requriements.

• Journal of the Korean Home Economics Association
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• v.24 no.2
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• pp.123-137
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• 1986

The present study was designed to answer the following questions : The first overall question had to do with the relationship between sex-role identity and self-esteem-more specifically, is androgyny or masculinity more importamt in explaining the variation in self-esteem? The second overall question had to do with the degree to which the relationship between sex-role identity and self-esteem is a universal or a culturally specific phenomeon-more specifically, is the relationship between sex-role identity and self-esteem the same in Korean and American cultures? The Bem Sex Role Inventory and the Coopersmith Self Esteem Inventory were administered to 208 American college students and 207 Korean college students, respectively, in introductory sociology classes. The BSRI and SEI are standardized for American subjects and written in English. Prior to administering these instruments to Korean subjects, they were translated ito the Korean Language. In order to fully explore the data, qualitative as well as quantitative measurement of the BSRI were used, and both factorial and regression analyses were performed in this study. The most important cross-cultural differences found in the present study are directly related to the two research questions. In the U.S. sample, masculine attributes were found to be more important in explaining self-esteem. On the other hand, androgynous attributes were positively related to self-esteem in the Korean sample. These findings also provide the answer to the second question. That is, different cross-cultural patterns of relationship were found between sexrole identity and self-esteem, providing some support for a culture-bound relationship. These cross-cultural differences were discussed in terms of both confucian values held by Koreans and Bakan's suggestion of a positive relationship between agentic characteristics and modernization.