• 한국식생활문화학회지
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• 제20권3호
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• pp.384-390
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• 2005

This study was designed to establish Korean food culture by considering traditional fruit preserve. A historical approach of traditional fruit preserve were reviewed by the cooking book published from 1670 to 1988 in Korea. The results obtained from this study are as follows. Cooking method of fruit preserve was firstly published to Omshikdimibang in 1670 and published moderate cooking book in 1988 but fruit preserve has not been cooked yet. Cooking method of fruit juice and starch had been started in Samkuk dynasty and was completed in Lee Dynasty. Compared with the western fruit jelly, mung bean starch was used as a gel forming material in Korean traditional fruit preserve while gelatin was used as a gelling agent in western fruit jelly. Western fruit jelly was succeed in innovation, but traditional fruit jelly was failed to innovation.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 춘계학술대회
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• pp.324-326
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• 2011

최근 교육 콘텐츠 개발이 활발한 가운데, 콘텐츠를 소비하는 소프트웨어(Software)의 저작권을 보호할 수 있는 방법이 다양하게 연구되고 있다. 따라서 본 연구는 이더넷(Ethernet)의 맥 주소(MAC Address)와 하드디스크 볼륨 시리얼 넘버(Hard Disk Volume Serial Number)를 통해서 소프트웨어의 저작권을 보호하기 위한 방안을 고찰, 구현 하였다. 본 연구를 통해 간단하지만 강력한 저작권 보호를 위한 알고리즘을 구현하여, 학원 교육 콘텐츠 소 프트웨어의 저작권 보호를 강화하고, 불법적 소프트웨어 사용으로 인한 피해를 감소하는데 기여할 것이다.

• Kyungpook Mathematical Journal
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• 제47권2호
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• pp.277-281
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• 2007

There are many papers on linear operators that preserve commuting pairs of matrices over fields or semirings. From these research works, we have a motivation to the research on the linear operators that preserve commuting pairs of matrices over nonnegative integers. We characterize the surjective linear operators that preserve commuting pairs of matrices over nonnegative integers.

• ETRI Journal
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• 제32권4호
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• pp.630-633
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• 2010

In this letter, we propose a novel polygonal approximation of digital curves that preserve original shapes. The proposed method first detects break points, which have two different consecutive vectors, and sets an initial dominant point set. The approximation is then performed iteratively by deleting a dominant point using a novel distance, which can measure both the distance and the angle acuteness. The experimental results show that the proposed method can preserve original shapes and is appropriate for various shapes, including slab-sided shapes.

• 대한수학회지
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• 제51권4호
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• pp.773-789
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• 2014

We consider linear operators on square matrices over antinegative semirings. Let ${\varepsilon}_k$ denote the set of all primitive matrices of exponent k. We characterize those linear operators which preserve the set ${\varepsilon}_1$ and the set ${\varepsilon}_2$, and those that preserve the set ${\varepsilon}_{n^2-2n+2}$ and the set ${\varepsilon}_{n^2-2n+1}$. We also characterize those linear operators that strongly preserve ${\varepsilon}_2$, ${\varepsilon}_{n^2-2n+2}$ or ${\varepsilon}_{n^2-2n+1}$.

• 대한한의학원전학회지
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• 제20권1호
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• pp.85-102
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• 2007

Zhang thinks human life consists of body(形) and Shen(神 spirit). Body comes from Jing(精), Shen comes from Qi(氣). The common basic of body and Shen is Qi. Thus the elements of human life are Jing, Qi and Shen. Among the three life elements, Jing is the lowest level. To preserve Jing is the key to Life Care. To preserve Jing, we should rest body and Shen, and Shen rules body, so to rest Shen is necessary to preserve Jing. When Jing is full, it converts to Qi, and Qi converts to Shen. Shen is ruled by mind(心), so mind sould be quiet. There is a gate through which Jing and Qi pass. It is called Mingmen(命門), and it sould be closed tight to preserve Jing.

• Journal of applied mathematics & informatics
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• 제28권1_2호
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• pp.373-381
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• 2010

In this paper we determine all elements in the root lattice of symmetrizable generalized Kac-Moody algebras whose reflections preserve the root systems. Also we discuss elements in the root lattices whose reflection preserve the root lattices.

• 대한수학회보
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• 제36권1호
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• pp.131-138
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• 1999

We consider the Boolean linear operators that preserve Boolean rank and obtain some characterizations of the linear operators which extend the results in [1].

• 대한수학회지
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• 제36권6호
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• pp.1181-1190
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• 1999

Zero-term rank of a matrix is the minimum number of lines (rows or columns) needed to cover all the zero entries of the given matrix. We characterized the linear operators that preserve zero-term rank of the m×n matrices over binary Boolean algebra.

• 대한공간정보학회지
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• 제7권1호
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• pp.65-74
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• 1999

문화재의 정밀 수치자료와 분석체계의 구축은 대상물의 보존과 복원을 위한 기초자료로서 매우 중요한 의미를 지니고 있다. 본 연구는 보다 효율적으로 문화재를 관리하기 위한 수치자료의 획득과 분석시스템의 구축에 관한 것이다. 분청사기 매병에 대해 소프트카피 사진측량기법을 적용하여 정밀 3차원 수치자료를. 구축하고 이를 기반으로 다양한 공간분석과 모니터링을 수행하므로써 문화재 보존을 위한 효율적인 방법을 제시하였다.