• Journal of the Korean School Mathematics Society
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• v.20 no.4
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• pp.423-443
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• 2017

In this paper, In this paper, we study the recognition of undergraduate students and professors about the relation between mathematics learning contents of high school liberal arts course and major fields of college of business administration. We chose 155 undergraduate students and 6 professors at college of business administration in M university and investigate their recognition about the relation between mathematics learning contents of high school liberal arts course and major fields of college of business administration. We found following facts. First, mathematics education in high school should be based on understanding of mathematical conceptions and principles rather than problem-solving skills to intensifying the relation between mathematics of high school liberal arts course and major fields of college of business administration. Second, we have impressed upon them, whom are going to college of business administration, the need for more mathematics to study a major field.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.371-380
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• 2019

This study was undertaken to analyze the relationship between the Big-five personality factors of undergraduate students and Creativity Convergence Competency. Totally, 511 students attending private colleges in G province were surveyed for their competences. Using the SPSS 22.0 program, all collected data were analyzed by one-way ANOVA, Pearson's correlation analysis, and regression analysis. The following results were obtained. First, personality extraversion and Creativity Convergence Competency differed in all the major factors examined. Second, higher the interpersonal abilities, higher was the ability of core convergence. Third, extraversion and sincerity among the Big-five personality factors were significant predictors of Creativity Convergence Competency. In conclusion, we found that the Big-five personality factors are important to be considered for strengthening the competence of students.

• Fire Science and Engineering
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• v.28 no.4
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• pp.89-96
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• 2014

The purpose of this study is to examine the awareness survey on the life and laboratory safety of the college students. For the research, data was collected from 442 students of health, engineering, fire fighting and food & cook department. Research tools were used SPSS win 19.0, the mean and standard deviation, t-test, Pearson's correlation coefficient was used. Comparing the life safety consciousness with laboratory safety consciousness, showed life safety awareness and safety laboratory has recognized the similarities (Pearson's correlation coefficient ${\chi}^2=296.456$, p < 0.001). Results of awareness survey to safety management, the safety awareness are difference with the type of respondents major subjects. This order was Food & Cook > Fire fighting > Health > Engineering department.

• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.310-323
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• 2021

In this study, we analyzed the application of flipped learning in the untact online classes, focusing on thr social and engineering subjects of universities. Due to the unprecedented situation of COVID-19, the professors and learners were unable to conduct the face-to-faceclasses, and the existing flipped learning classes were analyzed separately from the social and engineering subjects. In particular, the results of this study will provide the basic data on the direction of post-corona-era university classes in that it can increase the effectiveness of flipped learning if it is linked to the flexibility of the university's academic system such as intensive course.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.311-312
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• 2016

본 연구는 일 대학생의 성의식과 생명윤리의식이 성 태도에 미치는 영향을 파악하기 위해 실시되었다. 연구대상은 K시에 위치한 일 대학교의 재학생 386명으로 324명의 자료가 분석에 사용되었다. 연구결과 성의식은 학과 및 성별에 따라 유의한 차이를 보였고(p<.001) 성 태도는 성별(p<.001)과 성지식 경로(p<.01)에 따라 유의한 차이를 보였다. 사후검정 결과 성의식 정도는 보건계열학과 학생이 관광계열학과와 스포츠계열학과 학생보다 유의하게 높았으며, 성 태도 점수는 남성이 여성보다 유의하게 높았다. 성의식과 성 태도는 음(-)의 상관관계가 있었으며, 대학생의 성 태도에 영향을 미치는 요인은 성의식(p<.001), 성별(p<.01), 성지식 경로(p<.001)이었다. 본 연구결과를 토대로 대학 내에서는 대학생들의 성의식을 함양시키기 위해 현실적이고 체계적이며, 실천가능한 성교육 프로그램을 마련해야 할 것이다.

• International Journal of Highway Engineering
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• v.11 no.3
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• pp.23-32
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• 2009

In this paper an experimental program was launched to determine the mechanical and durability properties of spall repair materials (RCC: 3 items, PCC: 2 items, PC: 3 items). Test items were mechanical property tests such as setting times, strengths, modulus of elasticity, plastic shrinkage, and durability tests such as dynamic modulus ratio, bond property with freeze-thaw, water absorption, chemical resistance, ultraviolet exposure. Modulus of the PC products exhibits ductile while the modulus is in the order of RCC > PCC > PC. At early ages the PC products experience higher plastic shrinkage than others, henceforth stable at 28 days. Other test results such as dynamic modulus ratio, absorption, and chemical resistance show that the PCs are superior to the PCCs and the RCCs. Except for PC-2, all patch materials had bond strength more than 1.3MPa after freeze-thaw cycles of 200~300 while the PCs and the PCCs seem to be better than the RCCs. With 500 hours of ultraviolet exposure, all patch materials showed to have no crack or deterioration at the surface.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10a
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• pp.157-160
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• 2000

다중 워터마킹은 하나의 컨텐츠에 2개 이상의 다른 워터마크를 삽입하는 것으로 각 워터마크는 유일한 키로 정확하게 추출할 수 있어야 한다. 대역확산법(spread spectrum)을 이용한 다중 워터마킹은 삽입되는 워터마크간의 직교성(orthogonality)이 제공되어야 삽입된 워터마크들의 정확한 추출이 가능하다. 랜덤계열과 Hadamard 계열을 이용한 기존의 방법은 직교성이 보장되지 않기 때문에 워터마크가 정확히 추출되지 않은 문제가 발생한다. 따라서, 본 논문에서는 랜덤계열들을 Gram-schmidt 직교화 과정을 이용하여 직교화시킨 후, 직교화 된 랜덤계열로 워터마크를 삽입하여 정확한 추출이 가능한 방법을 제안하였다.

• The Korean Journal of Financial Management
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• v.17 no.2
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• pp.125-141
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• 2000

이 논문에서는 비선형 마코브과정에 의하여 주가가 생성되며 비선형 마코브과정간에 공시운동이 존재하고 이 공시운동에 의하여 주가가 생성되고 있는지의 여부를 검토하는데 목적이 있다. 공시운동은 벡터시계열을 구성하고 있는 단일시계열들의 작용에 의하여 형성되는 관계이다. 종합주가지수를 비롯한 산업별 주가지수가 모두 41개인데 이 지수들의 수익률 시계열들이 비선형 마코브과정을 데이터 생성함수로하여 생성된다고 할 때 정상성 어고딕성이 성립하고 있는 지수수익률시계열이 있고 그렇지 않은 시계열도 있다. 종합주가지수와 대기업, 소기업은 정상적 어고딕 비선형 마코브과정을 따르고 있다. 비선형 마코브과정의 공시운동은 두 시계열간의 관계이다. 종합주가지수의 수익률 시계열과 각 산업주가지수의 수익률시계열간의 공시운동은 시장 1부, 시장 2부 등을 비롯한 산업에서는 존재하고 있지 않으며, 중기업 산업 등을 비롯한 산업에서는 존재하고 있다.

• Proceedings of the KIPE Conference
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• 2018.11a
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• pp.119-120
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• 2018

국내 원자력 발전소의 비상전원공급을 위하여 대체교류디젤 발전기와 납축전지를 사용하고 있다. 납축전지는 온도, 방전 전류, 수명 및 안정성 등에서 리튬계열전지와 비교되고 있으며, 전기적 특성이 우수하고 안정성이 높은 리튬계열전지의 사용이 고려되고 있다. 본 논문은 원전의 비상전원 설계를 위하여 납축전지와 리튬계열전지의 전기적 특성을 비교 분석하였다.

• Journal of Digital Convergence
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• v.11 no.5
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• pp.95-104
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• 2013

The goal of this study is to confirm the extent of realization of economic democracy between the subsidiary ICT companies of conglomerates and the KOSDAQ listed ICT companies with focus on growth and profitability. As the results of analysis, the following were verified. First, there were differences in all aspects of the subsidiary ICT companies of conglomerates and the KOSDAQ listed small and medium ICT companies, including growth and profitability. Second, the pattern of economic democracy between two groups displayed relatively unrealized economic democracy structure. Third, It was found that KOSDAQ listed small and medium ICT companies were relatively much more difficult situations than the subsidiary ICT companies of conglomerates.