• 한국가정과교육학회지
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• 제19권4호
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• pp.1-15
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• 2007

본 연구는 경기지역에 위치한 남녀중학생 1학년 270명과 3학년 252명, 총 522을 대상으로 학년별 성별에 따라 기술 가정교과 내의 식생활단원에 대한 인식, 활용도, 수업만족도, 요구도 및 학습 후 학생들의 식생활태도에 차이가 있는지를 비교하였다. 본 연구에서 얻어진 결과를 요약하면 다음과 같다. 기술 가정 교과에 대하여 1학년과 3학년 모두 선호도가 낮았으며, 좋아하는 이유로는 1학년, 3학년 모두 '실생활에 도움이 되기 때문에'이며, 싫어하는 이유로는 '내용이 흥미 없기 때문에'가 가장 높게 나타났다. 기술 가정교과에 대하여 1학년이 3학년보다 높은 흥미도를 보였으며, 실생활 도움 정도는 3학년이 1학년보다 높게 나타났다. 기술 가정교과 내의 식생활단원에 대하여 1학년의 선호도가 3학년에 비해 더 높게 나타났으며, 좋아하는 이유는 1학년, 3학년 모두 '조리실습을 좋아하기 때문에'가, 싫어하는 이유로는 1학년, 3학년 모두 '영양과 건강에 대한 관심이 없어서'가 가장 높게 나타났다. 식생활 단원의 필요도는 1학년이 3학년보다 더 필요하다고 응답했으며, 식생활 단원이 실생활에 도움을 주는 정도도 1학년이 3학년보다 더 도움이 된다고 응답하였다. 실생활에 도움이 안되는 이유는 1학년, 3학년 모두 '실생활에 적용할 시간이 없어서'가 가장 많았다. 식생활단원에 대한 실생활에서의 활용도는 전반적으로 높은 것으로 나타났고, 1학년이 3학년보다 높은 활용도를 보였다(P<0.001). 식생활단원에 대한 수업만족도가 낮은 편이었다. 식생활 단원에 대한 요구도는 1학년이 3학년보다 높게 나타났으며, 가장 높은 필요도를 보인 것은 1학년과 3학년 모두 '조리의 기초와 실제'였다. 식생활 단원에 대한 선호도가 높을수록 요구도, 만족도, 활용도가 높은 것으로 나타났다. 요구도와 만족도, 만족도와 활용도, 요구도와 활용도간에 모두 유의적 수준의 양의 상관관계를 나타내었다. 이상의 결과를 종합하여 볼 때 가정 교과의 식생활 단원에 대한 인식, 선호도 및 활용도, 요구도 등은 대체로 긍정적으로 나타났으며, 특히 1학년의 선호도, 요구도, 활용도 등이 3학년에 비해 더 높게 나타났다. 식생활영역을 선호할수록 식생활 수업을 매우 긍정적으로 받아들이며, 식생활영역 요구도와 만족도, 활용도 등이 높았다. 따라서 식생활영역에 대한 학생들의 선호도를 높일 수 있는 식생활 교육내용과 교수-학습방법을 개발하고 학생들의 요구에 부응하는 교육환경의 개선이 이루어진다면 학생들이 식생활 수업에 적극적으로 참여하여 높은 학업성취도를 얻을 수 있을 것으로 생각된다.

• 한국환경복원기술학회지
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• 제11권5호
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• pp.38-59
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• 2008

This research has a meaning to provide basic data for eco-friendly way of district unit plans and ecological landscape planning by evaluation of biotope preservation value at the level of district unit and designating land development of the site, the whole area of Sinseo-dong (Dong-gu, Daegu metropolitan city) for research site. The summary of analysis result is as follows. As a result of classification of biotope types on the research site, it is divided into 11 biotope groups such as a residential biotope group and 51 specific biotope types which is subordinate to the groups. As a result of the first value assessment on classified biotope types, there are 16 types of natural rivers which is full of vegetation as a I class. Also it is analysed as 9 types of IIclass, 14 of IIIclass, 8 of IVclass, and 4 of Vclass. In particular, in light of a wildlife habitat, EB, in case of broad-leaved tree of mixed forest assessed as a II class, was classified into Iclass which is one-step upgraded as a final class with the analysis as there is a structural characteristic (more than 71% of low density, 50 years of age-class). As a result of second assessment, it is analysed that there are 17 special sites (1a,1b) and 33 special sites (2a, 2b, 2c) respectively for preservation of species and biotope. Particularly, in case of the No. 27 space, it was assessed that it has the value of about medium (IIIclass) level, but its value was upgraded with the on-spot detailed investigation that most of Aristolochia contorta, designated as a rare plant by Ministry of Environment, is growing. It is regarded that the above-mentioned research result on evaluation of biotope preservation value is expected to provide very important basic materials for future district unit plans and smooth integration with landscape ecology plans and eco-friendly space development.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제27권4호
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• pp.157-169
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• 2020

In this paper, we improve a new boundary Schwarz lemma, for analytic functions in the unit disk. For new inequalities, the results of Rogosinski's lemma, Subordinate principle and Jack's lemma were used. Moreover, in a class of analytic functions on the unit disc, assuming the existence of angular limit on the boundary point, the estimations below of the modulus of angular derivative have been obtained.

• Korean Journal of Mathematics
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• 제27권4호
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• pp.1027-1041
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• 2019

In this paper, we present a Schwarz lemma at the boundary for analytic functions at the unit disc, which generalizes classical Schwarz lemma for bounded analytic functions. For new inequalities, the results of Jack's lemma and Hankel determinant were used. We will get a sharp upper bound for Hankel determinant H₂(1). Also, in a class of analytic functions on the unit disc, assuming the existence of angular limit on the boundary point, the estimations below of the modulus of angular derivative have been obtained.

• Journal of the Korean Statistical Society
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• 제31권2호
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• pp.251-259
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• 2002

Lagged regressor models with general stationary errors independent of the regressors are considered. The regressor process is unstable having characteristic roots on the unit circle. If the order of the lag matches the number of roots on the unit circle, the ordinary least squares estimator (OLSE) is asymptotically efficient in that it has the same limiting distribution as the generalized least squares estimator (GLSE) under the same normalization. This result extends the well-known result of Grenander and Rosenblatt (1957) for asymptotic efficiency of the OLSE in deterministic polynomial and/or trigonometric regressor models to a class of models with stochastic regressors.

• 대한수학회논문집
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• 제35권3호
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• pp.927-933
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• 2020

We characterize Möbius functions mapping the unit disc of the complex plane contractively into itself. We then give a procedure to produce Möbius iterated function systems on the unit disc.

• Kyungpook Mathematical Journal
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• 제48권1호
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• pp.155-163
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• 2008

This is an extended version of the paper [K] of the author. The average formulas on the circles and disks around arbitrary points of Nevanlinna counting functions of holomorphic self-maps of the unit disk, given in terms of the boundary values of the selfmaps, are shown to give another characterization of the whole class or a special subclass of inner functions in terms of Nevanlinna counting function in addition to the previous applications to Rudin's orthogonal functions.

• Journal of Hydrospace Technology
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• 제1권1호
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• pp.125-145
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• 1995

In this paper, three kinds of the existing idealized structural units, namely the idealized beam-column units the idealized unstiffened plate unit and the idealized stiffened plate unit are expanded to deal with the excessive tension-deformation effects. A simplified mechanical model far the stress-strain relationship of steel members under tensile load is suggested. The 1/3-scale hull model for a leander class frigate under sagging moment tested by Dow is analyzed, and it is shown that the excessive tension-deformation is a significant factor affecting the progressive collapse behavior, particularly in the post-collapse range.

• 공학교육연구
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• 제23권1호
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• pp.3-9
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• 2020

The purpose of the study was to develop the Arduino based STEAM instruction materials for creative engineering design class. PDIE model was used in this study. We developed a STEAM lesson plan and a STEAM lesson worksheet for a total of six sessions through the steps of preparation, development, implementation and evaluation. The validity of the instruction materials was evaluated by the 10 experts using a survey. The instruction materials were applied to the class (52 students attended) of the creative engineering designs unit in technology and home economics subject. The class satisfaction and the creative solving-problem ability were examined after the calss. The class satafacition was high as the average of 10 item was 4.57 (out of 5). The paired t-test was conducted to compare the means of the creative solving-problem ability. It was observed that 'understanding and mastery of knowledge, thought, function and skills in a specific domain', 'divergent thinking', 'critical and logical thinking' and ' motivational factors' were significantly increased after the class. The instruction materials develped in this study were successfully designed to enhance the creative solving-problem ability by designing creative tasks and to intrique the interest by adding visual and auditory stimuli with the Arduino.

• 영어어문교육
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• 제16권3호
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• pp.339-363
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• 2010

The purpose of this paper is to investigate how the English classes in secondary schools in Korea are in terms of communicative nature. After literature study, COLT parts A and B were used to analyze three kinds of English classes: a common class type taught by a school teacher who had won 1st prize at TEE contest, a team teaching class taught by NNS and NS, and a model class taught by a pre-service English teacher. Their communicative English classes were videotaped and transcribed for analysis by COLT. The results of the study revealed that students participated in the classes mostly as a unit and, therefore, did not get many meaningful chances to speak English. Second, creative language-use opportunities were barely found during classes. Third, the group work seemed to be prepared before the class, not to be done during the class. Therefore it is likely to be learned from memorization rather than meaningful communication. These results suggest English classes in schools be more communicatively oriented for successful English learning. Further study should be conducted in order to make English classes more communicative to help students communicate their genuine messages in English and to help teachers teach English efficiently.