• 대한지역사회영양학회지
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• 제12권2호
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• pp.160-167
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• 2007

This study was performed to investigate the effects of regular exercise on dietary factors and obesity indices among 407 healthy adult males subjects. Subjects were classified into regular exercise group (REG) and irregular exercise group (IREG). Two hundred and thirteen subjects of REG excercised regularly 3 times (more than 30 minutes/time) per week during more than last 1 month or more. One hundred and ninety-four of IREG (n = 194) didn't regularly exercise during the last 1 month. Obesity indices were BMI (Body Mass Index), WHR (Waist Hip Ratio) and PIBW (Percentage of Ideal Body Weight). And the mean BMI, WHR and PIBW of REG were (22.1, 0.90 and 105.8) significantly lower than those of IREG (25.7, 0.98 and 117.7) respectively. The mean daily starches, seeds, meats, eggs, fish, milk, fats and processed food intakes of REG were significantly lower than those of IREG And the mean daily vegetables, mushrooms and beverages intakes of the IREG were significantly lower than REG. Energy intake of REG and IREG were 1968.2 kcal and 1978.9 kcal respectively. Vitamin C intake of IREG was significantly lower than REG. But niacin and cholesterol intake of REG were significantly lower than the IREG. Exercise regularity was positively related with obesity indices and dietary factors. Therefore, it is necessary to exercise regularly to prevent obesity and cardiovascular disease in Korean adult males.

• 한국수학교육학회지시리즈A:수학교육
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• 제12권2호
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• pp.5-12
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• 1974

단위원을 가지는 하환환에 있어서의 Prime Spectrum에 관하여 다음 세가지 사실을 증명하였다. 1. X를 환 R의 prime spectrum, C(X)를 X에서 정의되는 실연적함수의 환, X를 C(X)의 maximal spectrum이라 하면 X는 C(X)의 prime spectrum의 부분공간으로서의 한 T-space로 된다. N을 환 R의 nilradical이라 하면, R/N이 regula 이면 X와 X는 위상동형이다. 2. f: R$\longrightarrow$R'을 ring homomorphism, P를 R의 한 Prime ideal, $R_{p}$, R'$_{p}$를 각각 S=R-P 및 f(S)에 관한 분수환(ring of fraction)이라 하고, k(P)를 local ring $R_{p}$의 residue' field라 할 때, R'의 prime spectrum의 부분공간인 $f^{*-1}$(P)는 k(P)(equation omitted)$_{R}$R'의 prime spectrum과 위상동형이다. 단 f*는 f*(Q)=$f^{-1}$(Q)로서 정의되는 함수 s*:Spec(R')$\longrightarrow$Spec(R)이다. 3. X를 환 S의 prime spectrum, N을 R의 nilradical이라 할 때, 다음 네가지 사실은 동치이다. (1) R/N 은 regular 이다. (2) X는 Zarski topology에 관하여 Hausdorff 공간이다. (3) X에서의 Zarski topology와 constructible topology와는 일치한다. (4) R의 임의의 원소 f에 대하여 f를 포함하지 않는 R의 prime ideal 전체의 집합 $X_{f}$는 Zarski topology에 관하여 개집합인 동시에 폐집합이다.폐집합이다....

• 한국지역사회생활과학회지
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• 제19권2호
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• pp.191-199
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• 2008

The purpose of this study was to obtain an understanding of the effect of regular exercise on obesity indices, the psychosocial wellbeing index, dietary factors and exercise regularity among 146 healthy mothers and 146 their daughters. "Mother" subjects were divided into two groups classified as regular exercise group(REG) and none exercise group(NEG). The exercise regularity of REG's daughters(30.8%) and of NEG's daughters (2.0%) was significantly different(p<0.001). The Obesity Indices(Body Mass Index (BMI), Waist Hip Ratio(WHR) and Percentage of Ideal Body Weight(PIBW)) of NEG's daughters were significantly higher than those of REG's daughters(p<0.001). But the psychosocial wellbeing index was not significantly different between REG's daughters and NEG's daughters. Intake of total energy, protein, fat, Ca, niacin and Fe were significantly different(p<0.001) between REG's daughters and NEG's daughters. Especially, vitamin C intake of REG's daughters was significantly higher than that of NEG's daughters(p<0.001). The exercise regularity of mothers was mainly related with Obesity Indices and nutrient intake in their daughters. Therefore, it might be necessary to maintain exercise regularity to prevent obesity and diet related problems in mothers and their daughters.

• 한국통신학회논문지
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• 제40권1호
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• pp.70-77
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• 2015

본 논문에서는 TCP와 병목 링크(bottleneck link)를 공유하는 MPTCP(Multipath TCP)의 성능을 실험을 통해서 측정하고 결과를 제시하였다. 실험을 통해서 MPTCP의 공정성(fairness)과 성능은 지연, 패킷 손실 등과 같은 전체 네트워크의 조건에 크게 영향을 받는다는 것을 알 수 있었다. 이상적인 일반적인 네트워크 조건에서 MPTCP는 TCP보다 상대적으로 성능이 높아서 TCP와 불공정(unfair) 하지만, 네트워크의 지연이 증가하고 패킷 손실이 증가함에 따라 처리율(throughput)이 감소하며 TCP보다도 처리율이 감소하는 것을 알 수 있었다.

• 한국지역사회생활과학회지
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• 제23권3호
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• pp.221-231
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• 2012

To find the differences between the real somatotype and the ideal somatotype, WHR(Waist to Hip Ratio), WCR(Waist to Chest Ratio), and body cathexis were analysed by using ANOVA test, Duncan's multiple range test, and $x^2$ test. Fashion image sought by female collegians was surveyed, too. The results were as follows. WHRs in slim, usual, fat body type were 0.75, 0.76, and 0.83 and WCRs were 0.77, 0.81, 0.80. The respondents who considered themselves to be overweight recognized themselves to be fatter than their real weight. They were not satisfied with their bust girth in slim body type, thighs and calves in usual body type, and all parts except for foot length, hand length and arm length in fat body type. 60% of the thin people considered their body hourglass shape, 30.4% of regular people recognized their body triangle type, 43.8% of fat people thought their body was round form. They thought current ideal body size was bigger in height and bust girth and smaller in waist girth and hip girth, and weight than real body size. Also they responded ideal body shape was an hourglass type independent of somatotype. The pursuit of clothing image was that 45.5% of female collegians were fashionable and raffine and 10.4% of female collegians was elegant and graceful. Among the body area, body parts that may have an effect on body image were body length in 13.1% of the respondents, waist girth in 10.7% of the respondents, and hip girth in 10.0% of the respondents.

• 한국치위생학회지
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• 제15권1호
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• pp.47-54
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• 2015

Objectives: The aim of this study was to investigate the factors related to dental caries and periodontal disease in Korean adults. Methods: The subjects were 5,149 adults over 19 years old who participated in the 5th Korea National Health and Nutrition Examination Survey 2012. Data were analyzed by chi-square test and logistic regression analysis using SPSS 18.0 statistical package program. The questionnaire consisted of 17 questions of independent variables and 2 kinds of dependent variables including dental caries and periodontal diseases by direct interview. The independent variables included 5 questions of general characteristics, 3 questions of health behavior, 5 questions of oral health behavior, and 4 questions of chronic diseases diagnosed by the doctors. Results: The prevalence rate of dental caries was higher in those who did not regularly work out and did not receive regular checkups including dental floss and dental brush use. The prevalence rate of periodontal diseases was higher in male adults, smokers, and those who were obese and had diabetes mellitus, poor oral health care habit without using dental floss and inter-dental brush. Conclusions: In order to prevent the dental caries in the adults, it is very important to do regular exercise and regular dental checkup. The best ways of dental caries prevention include tooth brushing after meal with use of dental floss and inter-dental brush. This study suggests that dental health promotion can be enhanced by smoking cessation, ideal body weight maintenance, timely tooth brushing after meal, and use of dental floss and inter-dental brush.

• Kyungpook Mathematical Journal
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• 제45권2호
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• pp.199-209
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• 2005

An ideal space is ${\cal{I}}-resolvable$ if it has two disjoint ${\cal{I}}-dense$ subsets. We answer the question: If X is ${\cal{I}}-resolvable$, then is X (${\cal{I}}\;{\cup}\;{\cal{N}$)-resolvable?, posed by Dontchev, Ganster and Rose. We give three generalizations of the well known Banach Category Theorem and deduce the Banach category Theorem as a corollary. Characterizations of completely codense ideals and ${\cal{I}-locally$ closed sets are given and their properties are discussed.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2015-2020
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• 2011

Key set the current non-urban rail power failure of equipment to operate the railway will generate a lot of problems. I know in advance the ideal of power equipment to prevent the failure to derive an efficient replacement cycle for the power equipment monitoring and diagnosis of the condition can become necessary to develop a system. In order to determine the status of the power plant during operation and behavior of the partial discharge current state data, regular monitoring and inspection requirements also stamp the basic current, voltage, temperature and humidity should be identified.

• Kyungpook Mathematical Journal
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• 제56권4호
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• pp.1103-1113
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• 2016

In this paper, we study a directed simple graph ${\Gamma}_S(N)$ for a near-ring N, where the set $V^*(N)$ of vertices is the set of all left N-subsets of N with nonzero left annihilators and for any two distinct vertices $I,J{\in}V^*(N)$, I is adjacent to J if and only if IJ = 0. Here, we deal with the diameter, girth and coloring of the graph ${\Gamma}_S(N)$. Moreover, we prove a sufficient condition for occurrence of a regular element of the near-ring N in the left annihilator of some vertex in the strong zero-divisor graph ${\Gamma}_S(N)$.

• 대한치과의사협회지
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• 제4권1호
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• pp.5-7
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• 1963

The purpose of this investigation was to study the preperty of flow for seven different impression materials presently available in KOREA. In this study ,200 grams of a load was applied at regular intervals. As the result of this study, following points were revealed in terms of flow property of respective materials. 1)Impression plaster and irreversible hydrocolloid impression materials were found to have insufficient working time due to their tendency to set rapidly after mixing. 2)Regarding to impresssion pastes, it was found that it has manifested an ideal flow property until 2 minutes after mixing. Clinically, this material seems to allow sufficient working time for its manipulation.