• Human Ecology Research
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• 제62권2호
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• pp.197-216
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• 2024

The dual aims of this study were i) to explore the effectiveness of an assessment method that can measure the competencies learned through high school home economics and ii) develop a competency-based assessment framework for high school home economics, including components of competency-based assessment, item development system, and other elements. The study involved the following stages: literature analysis, draft development, concretization, validity verification, and final version. Based on the results of the literature analysis and expert deliberation, a competency-based assessment framework for high school home economics was developed which comprised three dimensions: 'core idea' × 'process' × 'context and value'. Based on this, an item analysis table was presented to systematize various activities for the competency-based assessment of high school home economics, following which a holistic rubric suitable for competency assessment tasks was proposed by referring to the newly developed 'process' dimension assessment criteria. This study is significant in that it is the first to propose a competency-based assessment framework that systematically presents a variety of assessment activities. These will facilitate the development of assessment standards and tools that teachers can refer to or trust in the changing school environment due to the introduction of the standard-based assessment system based on a high school credit system, and the guarantee of a minimum achievement level.

• 한국의류학회지
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• 제36권8호
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• pp.814-827
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• 2012

This study analyzed the presentation trend of a checklist method for trench coat designs. Through this analysis, this study examined the flow of trench coat designs and presents future design directions. Research was conducted in the following method. A total of 1,307 female trench coat photos were selected from the photos presented in the top 4 collections from 2006 to 2011. These photos were used for analysis and frequency analysis was conducted. Among the checklist methods presented in trench coats, the modification type was most common, followed by the elimination type, conversion type, combination type, minimization type, addition type, and magnification type, respectively. Checklist methods were continuously presented even while increasing and decreasing according to the year and season. This showed that it was highly possible for checklist methods to be continuously applied in future trench coat designs. Generally, a high frequency of appearance was shown in 2010 and during the F/W season. According to the development direction of future trench coat designs applied with the checklist method, it is predicted that the modification type and the elimination type (which have generally displayed high appearance frequency) will be continuously magnified in the future. In particular, it is expected modifications in structural details (which have showed an upward trend in 2011) will be further magnified.

• 한국정밀공학회지
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• 제10권2호
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• pp.54-65
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• 1993

The paper describes and alternative method based on a new idea to measure the circular movement of machining centers. ISO has employed three testing methods for the acceptance tests of machine tools; the first is a rotating one-dimensional probe method, the second is a two-dimensional probe and a master circular ring, and the third is a kinematic ball bar. The last two methods were proposed and introduced by W. Knapp and J. B. Bryan, respectively. The newly developed method is superior to above two methods; the rotating angle can be detected and the rotating radius is variable. Circular movement errors of machining centers were investigated by the analysis of data measured by R- .THETA. method. Followint observations are obtained 1) The errors which depend on positions, i.e., periodical errors by the pitch of ball screws, errors by compensation of backlash and errors by perpendicularity of X and Y-axis, were analyzed. 2) The errors which depend on NC control system, i.e., errors by the unbalance of position-loop-gaians, errors by velocity-loop-gains and errors by feed speeds, were quantiatively analyzed. 3) The method of extracting error information, which uses moving technique of averaging angle and fourier's analysis data mesured by the R- .THETA. method, was proposed.

• 한국산학기술학회논문지
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• 제15권8호
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• pp.5406-5411
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• 2014

자동차 엠블럼은 자동차와 운전자를 나타는 상징이며, 각 엠블럼은 고유의 독특한 역사와 의미를 가지고 있다. 오늘날 소비자와 자동차 디자이너는 고품질의 자동차 엠블럼을 요구한다. 자동차 엠블럼은 플라스틱, 금속, 철, 알루미늄 재료로 제작된다. 엠블럼은 자동차의 상징과 디자이너의 독창적인 생각을 나타내는데 필수적이다. 엠블럼을 개발기간은 최소한 6개월이 필요하다. 그러나 디자인 변경하면 개발 기간이 더 필요하다. 자동차 엠블럼의 패러다임이 아날로그에서 디지털로 변화고 있다. 본 연구에서는 디지털 LCD 엠블럼 시스템을 개발하였고, 에어백 커버에 부착하는 방법을 연구하였다. 에어백이 폭발하였을 때 디지털 LCD 엠블럼은 에어백에서 이탈하지 않았다.

• 대한수학교육학회지:수학교육학연구
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• 제12권4호
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• pp.473-491
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• 2002

This article analyzes mathematics education from dialectical materialism acknowledging the objectivity of knowledge. The thesis that knowledge is objective advances to the recognition that knowledge will be internalized, and an idea of zone of proximal development(ZPD) is established as a practice program of internalization. The lower side of ZPD, i.e. the early stage of internalization takes imitation in a large portion. And in the process of internalization the mediational means play an important role. Hereupon the role of mathematics teacher, the object of imitation, stands out significantly. In this article, treating the contents of study as follows, I make manifest that teaching and learning in mathematics classroom are united dialectically: I hope to findout the method of teaching-learning to mathematical knowledge from the point of view that mathematical knowledge is objective; I look into how analysis into units, as the analytical method of Vygotsky, has been developed from the side of mathematical teaching-learning; I discuss the significance of mediational means to play a key role in attaining the internalization in connection with ZPD and re-illuminate imitation. Based on them, I propose how the role of mathematics teachers, and the principle of organization to mathematics textbook should be.

• 한국수학교육학회지시리즈A:수학교육
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• 제50권2호
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• pp.135-148
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• 2011

We can say that the history of mathematics is the history on the development of the number system. The number starts from Natural number and is constructed to Integer number and Rational number. The Rational number is not the complete number analytically so that Real number is completed by the idea of the nested interval method. Real number is completed analytically, however, is not by algebra, so the algebraically completed type of the rational number, through the way that similar to the process of completing real number, is Complex number. The purpose of this study is to show the most appropriate way for the development of the human being thinking about the teaching and leaning of Complex number. To do this, We have to consider the proof of the existence of Complex number, the background of the introduction of Complex number and the background knowledge that the teachers to teach Complex number should have. Also, this study analyzes the knowledge to be taught of Complex number based on the anthropological theory of didactics and finally presents the teaching method of Complex number based on this theory.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2008년도 제31회 추계학술대회논문집
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• pp.366-370
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• 2008

가스발생기 사이클 액체로켓 엔진의 작동모드를 계산하는 작업은 엔진 개발의 다양한 분야에 적용할 수 있는 필수 기술이다. 본 연구에서는 모드해석 프로그램 개발을 위한 독립적인 13개의 식과 그에 상응하는 13개의 변수를 정의하였으며, 이들 13개의 식을 Newton 방법을 이용하여 풀이하는 프로그램을 구성하였다. 본 프로그램을 이용하여 엔진 작동모드 계산을 수행하여 그 효용성을 살펴보았으며, 물리적인 타당성을 확인하였다.

• International Journal of Internet, Broadcasting and Communication
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• 제16권1호
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• pp.47-54
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• 2024

With the rapid development of 3D animation, MetaHuman is widely used in film production, game development and VR production as a virtual human creation platform.In the animation production of virtual humans, motion capture is usually used.Since different motion capture solutions use different skeletons for motion recording, when the skeleton level of recorded animation data is different from that of MetaHuman, the animation data recorded by motion capture cannot be directly used on MetaHuman. This requires Reorient the skeletons of both.This study explores an efficient skeleton reorientation method that can maintain the accuracy of animation data by reducing the number of bone chains.In the experiment, three skeleton structures, Rokoko, Mixamo and Xsens were used for efficient redirection experiments, to compare and analyze the adaptability of different skeleton structures to the MetaHuman skeleton, and to explore which skeleton structure has the highest compatibility with the MetaHuman skeleton.This research provides an efficient skeleton reorientation idea for the production team of 3D animated video content, which can significantly reduce time costs and improve work efficiency.

• 디지털융복합연구
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• 제15권8호
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• pp.33-43
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• 2017

특허전략연구는 경영전략, 기술전략과 연계된 특허전략을 수립하고, 이를 구체화하기 위해 특허 Idea 발굴에서 출원 관리, 제품 및 개발과제의 조사/분석과 활용을 위한 라이선싱 등을 효율화하는 논의에 집중해 왔다. 그러나 수립된 특허 전략의 내재화 및 성과를 높이기 위한 기업 고유의 문화를 고려하거나 이를 반영한 특허전략 수립 연구는 매우 부족하였다. 그 결과 기업들은 업종과 조직문화가 고려되지 않은 일류 선진 기업의 특허전략을 자사 전략으로 모방하는 정도에 머물고 있었다. 이에 본 논문에서는 조직문화를 4개의 프레임워크로 구분하는 경쟁가치모형(Competing Value Model)을 바탕으로 기업의 특허전략 모형을 제안한다. 사례 연구를 통해 특허전략 유형을 검증하고 기업의 조직문화에 따른 적합한 특허전략을 제시한다. 본 연구는 특허전략에 대해 새로운 관점인 조직문화 이론을 바탕으로 논의하였다는 점과 실무적 활용성이 높은 전략모형을 제시한다는 점에서 의의를 가진다.

• 한국전자파학회논문지
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• 제25권8호
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• pp.864-871
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• 2014

본 연구에서는 Rotman 렌즈의 위상 오차를 최소화하는 빔 곡선을 구하는 최적화 방법을 제안하고 있다. 이 방법은 빔 포트로부터 배열안테나의 중심점과 배열안테나를 따라 대칭 또는 비대칭으로 놓인 두 개의 점으로 구성된 동위상점들을 통과하여 대응되는 동위상면까지의 3개의 경로길이는 동일하다는 개념에 근거를 두고 있다. 이 방법을 따르면, 각각의 빔 방향에 대하여 위상 오차를 최소화하는 배열안테나 상의 동위상점 집합을 찾으면 최적의 빔 포트 위치를 직접 구할 수 있다. 시뮬레이션 결과는 제안된 방법이 저 위상 오차를 갖는 Rotman 렌즈의 빔 곡선을 구하는 가장 최적이며 효과적인 방법임을 보여준다.