• Journal of applied mathematics & informatics
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• 제19권1_2호
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• pp.93-104
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• 2005

The present article discusses the number of empty convex 4-gons and empty convex 5-gons in a finite planar point set. New proofs are provided for the two related important results.

• International journal of advanced smart convergence
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• 제10권2호
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• pp.37-44
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• 2021

At the time of entering the super-aged society, the health problem of the elderly is becoming more prominent due to the rapid digital era caused by COVID-19, but the gap between welfare budgets and welfare benefits according to regional characteristics is still not narrowed and there is a significant difference in emergency medical access. In response, this study proposes an ICT-based New Normal Smart Care System (NNSCS) to bridge the gap I n health and medical problems. This is an integrated system model that links the elderly themselves to health care, self-diagnosis, disease prediction and prevention, and emergency medical services. The purpose is to apply location-based technology and motion recognition technology under smartphones and smartwatches (wearable) environments to detect health care and risks, predict and diagnose diseases using health and medical big data, and minimize treatment latency. Through the New Normal Smart Care System (NNSCS), which links health care, prevention, and rapid emergency treatment with easy and simple access to health care for the elderly, it aims to minimize health gaps and solve health problems for the elderly.

• Archives of Pharmacal Research
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• 제28권10호
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• pp.1161-1163
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• 2005

Five compounds of iridoids, lignan and phenylpropanoid glycosides were isolated from the roots of Valeriana jatamansi by column chromatography. Their structures were elucidated as 11-methoxyviburtinal (1), baldrinal (2), prinsepiol-4-O-${\beta}$-D-glucoside (3), coniferin (4), and hexacosanic acid (5) by spectroscopic analysis. 11-Methoxyviburtinal was a new compound, and others were isolated from the plant for the first time.

• Bulletin of the Korean Chemical Society
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• 제35권7호
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• pp.2207-2209
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• 2014

• Kyungpook Mathematical Journal
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• 제55권3호
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• pp.541-548
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• 2015

In this paper, concepts of quasi-normal and dually quasi-normal relations are introduced. Characterizations of these relations are obtained. In addition, particulary we show that the anti-order relation ${\nleqslant}$ ($={\leqslant}^C$) is a (dually) quasi-normal relation if and only if the partially ordered set (X, ${\leqslant}$) is an anti-chain.

• 융합정보논문지
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• 제11권11호
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• pp.185-194
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• 2021

이 연구는 COVID-19로 인한 학교 교육의 혼란스러운 상태를 파악하고, 국가적 위기에 신속하게 대처하기 위한 학교장의 역할을 모색하는 것을 목적으로 한다. 이를 해결하기 위하여 서울·부산·대구·대전·제주지역 초등학교 교장 34명을 대상으로 COVID-19에 대처하기 위해 학교장에게 어떤 리더십이 필요한지를 1차 SNS를 통해 개방형 문항으로 설문을 하고, 2차는 전화를 통해 심층 면접을 진행했다. 뉴노멀 시대에 교장의 리더십은 위기 상황에 신속하게 대응할 수 있는 능력과 신속한 예산 확보 및 투입, 교원 간 소통 촉진으로 발생할 수 있는 교육활동 지원, 수업 지원, 문제 예방 등에 대한 통찰력 있고, 책임 있는 리더십이 필요하다는 조사 결과가 나왔다. COVID-19과 같은 위기 상황에서 학교가 안정적으로 대처할 수 있는 학교장 역할을 정립하고 안전한 환경에서 학생의 배움이 일어나는 교육 환경 구축이 필요하다. 이를 위해서는 국가적, 교육 정책적 지원이 필요하다.

• Animal cells and systems
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• 제4권3호
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• pp.263-265
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• 2000

A new species, Xysticus jiangi n. sp. is described based on the specimens collected in Hunan province, China. X. jiangi is similar to X. chui, but distinguished by smaller spermathecae, distinct copulatory canals, and Y-shaped median apophysis. In addition, basal apophysis of tegulum is well developed, compared to that of the latter.

• 한국환경복원기술학회지
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• 제11권5호
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• pp.92-103
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• 2008

Development of new approaches to achieve naturally good ecological potential of forest road cut-slope by making the best use of advantages of gabion systems with vegetation base materials to prevent slope failure and erosion, in the area with highly erodible soil. As a result on the type analysis of gabion systems already installed in road cut-slopes, gabion systems were generally established to prevent slope failure. Existing gabion systems can be divided into monolithic and modular system and can be divided into ten subtypes according to the purpose of establishment and combination of other measures. As a result on the monitoring of erosion amount from forest road cut-slopes in the test applications, the order of erosion amount from largest to smallest is as follows : the curved road cut-slope site where normal gabion system was established ($7,911cm^3$); the control site ($7,632cm^3$); the straight road cut-slope site where normal gabion system was established ($7,301cm^3$); the curved road cut-slope site where the new gabion system was established ($5,684cm^3$); and the straight road cut-slope site where the new gabion system ($5,325cm^3$). Therefore, the result shows that the new gabion system is more effective than the normal gabion system to reduce erosion amount from forest ! road cut-slopes. During the study period, vegetation coverages of the straight and curved road cut-slope site where the new gabion system was established were about 45% and about 36%, so average vegetation coverage of the sites where the new gabion systems was established was higher than the sites where the normal gabion systems was established. Therefore, it was concluded that the new gabion system can be more effective for cut-slope revegetation.

• 한국동물학회:학술대회논문집
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• 한국동물학회 2000년도 공동 춘계학술대회
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• pp.65.1-65
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• 2000

No Abstract, See Full Text

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2010년도 제3회 국제학회
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• pp.20-23
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• 2010