• 대한수학회논문집
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• 제14권1호
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• pp.19-29
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• 1999

B. Gr nbaum defined the arrangements of simple curves and got many combinatorial properties. In this paper, we studied the existence of (n,r,t,k)-arrangements and the existence of digon-free(n,r,t,k)-arrangements, which is a generalized version of Gr nbaum`s definition.

• 기술사
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• 제43권4호
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• pp.39-43
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• 2010

What was the reason why Apple, a mere "rookie", got ahead of all the veterans before it? What influence will the newly released Ipad have? This writing will cover why people are clamoring over Iphones and Ipads. In addition, it will also discuss if Apple will be able to challenge Google's dominance on the web world using Ipods, Iphones, Ipads as weapons.

• Kyungpook Mathematical Journal
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• 제20권1호
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• pp.77-82
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• 1980

There are many definitions of the fractional derivative. It is purpose of this paper to show some results which were got for fractional partial derivative of functions of two variables and to give an application of the fractional partial derivative.

• 대한수학회지
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• 제38권3호
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• pp.633-644
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• 2001

Revenel computed the Adams spectral sequence converging to BP(Ω$^2$S(sup)2n+1) and got the E(sub)$\infty$-term. Then he gave the conjecture about the extension. Here we prove that there should be non-trivial extension. We also study the BP(sub)*BP comodule structures on the polynomial algebras which are related with BP(sub)*(Ω$^2$S(sup)2n+1).

• Journal of Advanced Marine Engineering and Technology
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• 제29권8호
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• pp.877-882
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• 2005

This paper discusses the lateral vibration of a bar which has its tip free. The uniform bar has a solution by summation of some simple exponential functions But if its shape is not uniform, its solution could be by Bessel's function, or mathematical solution could not be existed. Enen if the solution of Bessel's function exists. as Bessel function is a series function. we must got the solution by numerical method Hereby the author Proposes the ununiform beam solution of the matrix method by Ritz's method. and Proposes a new deflection shape function.

• 한국보육지원학회지
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• 제9권6호
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• pp.107-127
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• 2013

본 연구는 글자를 읽지 못하는 만 3~4세 유아를 대상으로 연령에 따른 환경인쇄물 읽기 능력 및 음운론적 인식 능력의 차이와 유아의 환경인쇄물 읽기 능력과 음운론적 인식 능력 간의 관계에 대해 알아보고자 하였다. 이를 위해 서울, 경기, 대전에 소재한 어린이집 7곳에 다니고 있는 글자를 읽지 못하는 만 3~4세 유아 90명을 연구 대상으로 선정하였다. 본 연구에는 손승희(2012)가 개발한 환경인쇄물 읽기 능력 검사와 최나야(2007)의 음운론적 인식 검사를 사용하였으며, 자료 분석은 기술통계, 독립표본 t 검증, Pearson의 적률상관분석을 실시하였다. 그 결과 만 4세 유아가 만 3세 유아보다 환경인쇄물을 더 잘 읽었고 음절수세기, 음절삭제, 음소대치 능력도 높게 나타났다. 또한, 만 3세 유아의 경우 환경인쇄물을 잘 읽을수록 음절수세기 점수가 높았으며, 만 4세 유아의 경우 환경 인쇄물을 잘 읽을수록 음절수세기, 음절삭제, 음소대치 능력이 더 높게 나타났다.

• 복식
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• 제61권6호
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• pp.38-59
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• 2011

This study is based on the periodical discourse of women and their costumes, described in modern novels that were published from late 1890s to the 1930s. New cultural phenomena emerged among Korean women in the period of modernization. In particular, rapid increase of jobs for women and preference for western female body shape are very noticeable phenomena that can be observed in novels of the 1930s. In addition, the symbolic meanings of female costumes are variously described in modern novels according to the periodical and spatial environment and jobs for women. The symbolic meanings are organized as 'Trophysm, Expression of sexuality, Liberation from male-dominated society, Symbolic difference between rural and urban areas, Vanity, Decadence, Mechanism tending to hide and Change of values'. And women's costumes kept changing in the boundary of 'Confliction, Coexistence and Harmonization' of traditional and western costumes. 'Confliction' phenomenon got emerged in novels published between 1900 and 1910. The resistance on traditional costumes that restricted woman's life got spread. But western female costumes as a symbol of new culture could not be generalized but accepted as high fashion. 'Coexistence' phenomenon was appeared in novels of the 1920s. At that time, the modernization for traditional costumes by female students was emerged along with trendy fashion. Also, the frequency of using western fashion items was increased in the Korean society. Therefore, it shows that western costumes in the Korean society became popularized in the coexistence with traditional costumes. 'Harmonization' phenomenon was emerged in novels of the 1930s. In the novels, the emergence of western female costumes, personal preference items, and westernized hair style implies that western costumes were absorbed into the Korean society that had kept traditional costumes.

• 디지털융복합연구
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• 제10권8호
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• pp.317-326
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• 2012

본 연구의 목적은 원어민 원격화상 영어수업이 초등학생들의 수업만족도와 자기효능감에 미치는 영향을 학년별로 비교 분석하는 것이다. 이를 위해 자체 제작한 수업만족도 검사도구와 김강식(2003)의 자기효능감 검사도구를 수정하여 활용하였다. 수업만족도는 3학년이 가장 높은 것으로 나타났고, 6학년이 가장 낮게 나타났다. 자기효능감 분석 결과, 사전 사후 비교 결과는 전체적으로 사후 검사가 낮게 나타났는데, 3학년의 경우에는 사후 검사에서 높게 나타났다. 자기효능감 학년별 비교에서는 3학년이 가장 높았고, 6학년이 가장 낮은 것으로 드러났다. 이러한 연구 결과는 원격화상시스템과 원어민을 새롭게 접하는 3학년 학습자들의 관심과 흥미가 학년이 올라갈수록 점점 떨어지는 것으로 분석되었다.

• 대한약리학회지
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• 제9권1호
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• pp.47-51
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• 1973

A benzomorphan derivative, pentazocine has both opioid agonistic actions and weak narcotic antagonistic activity. In this paper, authors attempted to study the dose response of pentazocine on the blood sugar level, serum transaminase and alkaline phosphatase activity in rabbits. Eighteen rabbits were devided into 3 groups, and each group were injected with pentazocine 5mg, 15mg, and 30mg/kg respectively. And metabolic effects were investigated measuring the change of blood sugar contents, serum transaminase (S-GOT, S-GPT) activities and alkaline phosphatase activities in rabbits. The results were obtained as follows; 1. Pentazocine significantly increased the blood sugar content in rabbits. 2. Pentazocine significantly increased the serum GOT activity but in the serum GPT activity, it significantly increased in large dose. 3. Pentazocine significantly increased serum alkaline phosphatase activity.

• 한국지역사회생활과학회지
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• 제15권3호
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• pp.97-106
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• 2004

This study was carried out to offer basic research data to increase rural housewife's clothing management ability and to guide their behaviors clothing- related reasonably. For this purpose, the interview-investigation by the questionnaire was conducted as the samples of 500 housewives under 60 at 8 villages located in Seoul, Gwangju and Daegu and 8 villages located in some rural communities we randomly extracted. This questionnaire was made up the standardized measuring scales of clothing management behaviors and related variables. As a result, in a part of storage and disposal the rural housewife got 3.68 and 3.16, whereas the urban housewife got 3.59 and 3.03, respectively, indicating a significant difference, which meant that the rural housewife managed those of clothing better than the urban housewife. Generally, rural wives were better in doings in the part of management, storage, disposal, than urban wives. They, however, knew the knowledge of clothing less than urban wives, evaluated the importance of clothing lower and applied clothing-related mass media to their life lower. Therefore, the rural wives need educational guides and materials for improving of the clothing behaviors because they are older and lower education lever than urban wives and they have a little information, too.