• Journal of Korea Society of Industrial Information Systems
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• v.14 no.4
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• pp.198-204
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• 2009

It is one of important and interesting topics in mathematics education to study the process of the logical thinking and the intuitive thinking in mathematical problem-solving abilities from the viewpoint of mathematical thinking. The main purpose of the present paper is to investigate on this problem with reference to secondary talented students (students aged 16~17 years). In particular, we focus on the relationship between the preference of mathematical thinking and their problem-solving abilities for logical-type problems by applying logistic regression analysis.

• School Mathematics
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• v.19 no.1
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• pp.171-187
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• 2017

To engineering students, calculus is essential knowledges and skills as a mathematical model and give a perspective to observe phenomenon in the future industrial field. However, engineering students' calculus study tends to solve problems by only applying the mechanical calculation and mathematical results. This study aimed to make engineering students realize the importance of calculus and untypical problems, by suggesting problems that could apply the mathematical concepts and principles and even solve the actual conditions of the problems. Students conjectured the anti-derivative graphs by interpreting the given derivate problems. They showed errors in this process and the errors are contributed by their mathematics leaning styles. As a result, the task would be helpful to engineering students.

• Korea Multimedia Society
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• v.21 no.4
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• pp.33-38
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• 2017

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1998.03a
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• pp.119-123
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• 1998

지난 몇 년동안 생산공장이나 건설현장에서 안전에 관한 문제가 상당히 강조되었다. 산업재해를 줄이기 위해서는 장비나 작업자의 신뢰성을 높여야 한다. 본 논문에서는 작업자의 근무년수에 따른 재해율을 평가하고 예측하는 수학적인 모델을 제시하고자 한다. 이 목적을 위하여 노동부에서 발표된 최근 3년 (94-96) 동안의 재해 통계를 사용하였다. 이 연구에서 개발된 방법은 프로젝트의 초기단계에서 노동정책을 개발하는데 유용한 자료가 될 것이다.

• Journal of Korea Society of Industrial Information Systems
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• v.2 no.2
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• pp.31-39
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• 1997

퍼지로직 컨트롤러는 파라메터의 측정이 불가능하고 수학적으로 정확하게 모델링 되지 않는 제어에 효과적으로 사용되어진다. 본 논문에서는 입력값에 대해 룩업테이블을 사용하지 않고 멤버쉽 함수를 계산하여 수렴점에서의 진동을 줄이는 방법을 제안하였다. 그리고 역추균형 제어 시스템에 적용시켜 그 타당성을 확인하였다.

• Journal of Gifted/Talented Education
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• v.23 no.3
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• pp.407-419
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• 2013

In current knowledge-based society, development and growth of IT-related industry is essential for a nation's competitiveness since it's economic power depends on IT industry in many countries. A success of IT industry depends on a few IT geniuses like Steve Jobs and Bill Gates. Thus, it is necessary to identify and foster gifted children in IT as early as possible. The purpose of this paper is to identify the correlation of academic performance per subject for the gifted children in IT. The analysis is focused on three subjects, that is, Information, Science, and Mathematics, respectively. For this purpose, the gifted children are selected and analyzed in a gifted science education center attached in a university at Seoul Metropolitan Area. The analysis results show that there is meaningful correlation among three subjects. That is, if high scores in a subject means high scores in other subjects. For instance, a gifted child with high scores in Information got high scores in Science and Mathematics. The result will be useful to improve selection examinations and curriculum for gifted education in IT, for inclusive education and convergent education.

• Food Industry And Nutrition
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• v.10 no.1
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• pp.11-16
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• 2005

식물성 단백질의 주요 공급원이며 우리나라 전통식품 중의 하나인 두부의 유통기한을 정량적으로 예측할 수 있는 수학적 모델을 개발하고자 온도와 초기균수에 따른 두부 부패세균의 성장 실험 결과를 데이터베이스화하여 이를 바탕으로 균의 성장을 정량적으로 평가할 수 있는 수학적 모델을 개발하였다. 근의 증식 지표인 최대증식속도상수(k), 유도기(LT), 세대시간(GT)은 온도에 지배적인 영향을 받았으며, 초기균수에 따른 유의 적 인 차이 는 없었다(p<0.05). 최대증식속도상수와 온도 및 초기균수의 상관관계를 나타내는 수학적 정량평가모델인 square root model을 이 용하여 두부 부패 세균의 성장을 정량적으로 예측할 수 있는 모델$({\surd}{\kappa}=0.016861(T+6.87095))$을 개발하였으며 실험치와 예측치의 상관계수는0.969이었다. 이 예측 정량평가모델로부터 예측한 최대증식속도상수와 두부의 관능적 부패시 점을 반영 한 Gompertz 변형 모델을 이용하여 두부의 유통기한을 예측할 수 있는 모델$(Spoilage-critrion(hr)=\frac{2{\times}Ln2+Ln[(Nmax/No)-1])}{k}$을 개발하였다

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.01a
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• pp.447-448
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• 2023

본 연구에서는 비전공자들을 위한 디지털 교육을 위하여 노 코드 프로그램을 활용한 정보, 수학, 과학 융합교육 교양 강좌를 개발하였다. 노 코드 프로그램으로는 오렌지3 데이터 마이닝을 선정하였는데, 이는 데이터 분석, 시각화, 머신러닝 모델의 활용이 용이하다는 강점을 가지고 있다. 또한, 산업환경 변화에 대비하는 핵심 교과인 과학, 수학, 정보의 중요성과 데이터 분석과의 밀접성을 고려하여 교육 내용을 융합할 수 있도록 선정하였다. 개발된 교육 프로그램은 8인이 전문가 검토 결과 내용 타당도가 확보되었음을 확인할 수 있었다. 추후 연구에서는 이 강좌를 대학의 학부생에게 적용하여 그 효과성을 확인해 보고자 한다.

• Communications of Mathematical Education
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• v.28 no.2
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• pp.281-302
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• 2014

The purpose of this paper is to offer a history of golden ratio, the criterion raised by Markowsky, and misconceptions about golden ratio. Markowsky(1992) insists that the golden ratio does not appear in the great pyramid of Khufu. On the contrary, we claim that there exists the golden ration on it. Elementary and middle school text books, and domestic history books deal with the great pyramid of Khuff and the Parthenon by examples of the golden ratio. Text books make many incorrect statements about golden ratio; so in teaching and learning the golden ratio, we recommend the design-composition of dynamic symmetry, for example, industrial design, aerodynamic, architecture design, and screen design. Finally we discuss the axial age how to affect the school mathematics with respect to the subject of Thales and the golden ratio.

• Journal of the Korea Society of Computer and Information
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• v.16 no.2
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• pp.235-242
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• 2011

The industry of computer has been changed quickly by developing and growing info-communications industry and by supplying new technologies. The importance of software field which is based on this change is gradually emphasized. Nowadays more people tend to have realization of mathematics and statistics that are basic theory of software study, moreover, discrete mathematics is especially getting more important in whole mathematics field. It's essential to understand discrete mathematics in order to understand existing knowledge about software field in computer engineering and develop new technologies in different areas in the future. The way people get education about discrete mathematics, however, is improper as a result of massive materials and uncertain standard. This study subdivides discrete mathematics according to different tracks in the computer software study. In addition, the research which is suitable to individuality in different fields is able to be efficiently carried out by selecting related parts and the method of mathematics education is provided to deal with rapidly changed applications in related fields.