• The Journal of the Korea Contents Association
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• v.9 no.7
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• pp.379-389
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• 2009

In this paper, we analyzed the effect of u-learning model school which have been in forced by the Ministry of Education. We suggested a plan which we generalized the effects of u-learning. To analyzed the effects of u-learning, first of all, we set up indexes of u-learning effect - satisfaction measurement, efficacy measurement, the scholastic achievements, possibility of generalization. After we reanalyzed reports of model school and papers of u-learning, we looked for suggestions of the effects u-learning. We draw up a plan which we generalized the effects of u-learning according to suggestions. We devide a plan by 3 steps - introduction step, diffusion step, fixation step and every step by 4 field - policy of u-learning, teaching & learning, quality control, technology. Because we suggested a concrete plan which we generalized the effects of u-learning, we expect to use usefully our plan at school in the future.

• School Mathematics
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• v.7 no.4
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• pp.375-389
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• 2005

Whitehead proposed that the education proceed through the rhythmic cycle on the basis of his metaphysical philosophy and educational philosophy. 'The Rhythm of Education' means that the intellectual levels of learners are elevated through the rhythmic cycles of stages of romance, precision, and generalization over and over again. As a result of these cyclic repetitions, the learners become truly free of inner prejudice. This study is to seek a method to apply Whitehead's proposition to mathematics education. I devise the curriculum constructing methods to experience Whitehead's three stages meaningfully, the teaching methods interplaying freedom and discipline rhythmically, and the teaching examples which adopt all these.

• Journal of the Korea Concrete Institute
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• v.21 no.5
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• pp.629-638
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• 2009

In this paper, the existing formulas of the step-by-step method were generalized for effective estimation of responses of complicated composite sections due to long-term deformation of concrete. The initial transformed section properties of the composite section were derived from material and section properties of concrete section and sections which confine the longterm deformation of concrete. The transformed section properties at each step were derived from the effective modulus of elasticity considered the creep coefficient variation. Improved formulas of the step-by-step method for generalized responses were derived by introducing 5 generalized parameters. The formulas can be more simplified by applying constant increment of creep coefficient at each step. The constant increment of creep coefficient at each step can also reduce computing time and make equal computing error of each step. The generalized responses for axial elastic strain of concrete section were most sensitive to the area rate of concrete section, and the ratio of the second moment of the confining section area was more sensitive than that of the concrete section. Those for elastic curvature of concrete section were most sensitive to the ratio of the second moment of concrete section area.

• Journal of Educational Research in Mathematics
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• v.22 no.4
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• pp.619-636
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• 2012

The main purpose of this study was to explore the process of generalization generated by mathematically gifted students. Specifically, this study probed how fourth, fifth, and sixth graders might generalize geometric patterns and represent such generalization. The subjects of this study were a total of 30 students from gifted classes of one elementary school in Korea. The results of this study showed that on the question of the launch stage, students used a lot of recursive strategies that built mainly on a few specific numbers in the given pattern in order to decide the number of successive differences. On the question of the towards a working generalization stage, however, upper graders tend to use a contextual strategy of looking for a pattern or making an equation based on the given information. The more difficult task, more students used recursive strategies or concrete strategies such as drawing or skip-counting. On the question of the towards an explicit generalization stage, students tended to describe patterns linguistically. However, upper graders used more frequently algebraic representations (symbols or formulas) than lower graders did. This tendency was consistent with regard to the question of the towards a justification stage. This result implies that mathematically gifted students use similar strategies in the process of generalizing a geometric pattern but upper graders prefer to use algebraic representations to demonstrate their thinking process more concisely. As this study examines the strategies students use to generalize a geometric pattern, it can provoke discussion on what kinds of prompts may be useful to promote a generalization ability of gifted students and what sorts of teaching strategies are possible to move from linguistic representations to algebraic representations.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.484-486
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• 2004

현재 침입탐지시스템이 직면하고 있는 문제점 중 하나는 침입탐지시스템이 발생시키는 경보의 수가 실제공격 횟수에 비해 너무 많다는 점이다. 따라서 침입시도 정보관리자의 경보 분석을 도와 줄 수 있는 침입시도 정보 클러스터링 기법들이 최근 소개되고 있다. AOI를 이용한 기법 또한 그중 하나이다 하지만 기존 AOI 알고리즘은 속성 칸에 대한 과도한 일반화를 발생시키는 문제점이 있다 이에 본 논문에서는 AOI 알고리즘의 속성 일반화 단계 수정을 통한 과도한 일반화 방지에 대한 방법을 제시하였다.

• Proceedings of the KIEE Conference
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• 2000.07c
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• pp.2192-2194
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• 2000

광섬유에서 전송되는 신호를 예측하기 위하여 일반화된 단계분할 유한요소법 (split-step finite element method, 55-FEM)을 이용한 비선헝 슈뢰딩거 방정식의 해석 방법을 구현하였다. 사용된 방정식은 분산 및 감쇄, 그리고 비선형 효과를 모두 고려하도록 하였다. SS-FEM으로 계산된 수치 결과는 엄밀해와 잘 일치하였음을 확인하였으며, 계산 시간을 푸리에법과도 비교하였다.

• Spatial Information Research
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• v.19 no.1
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• pp.73-82
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• 2011

Recently, demand for the use of cadastral map is increasing in both public and private area. To use cadastral map in web or mobile environment, construction of the multi-representation database(MRDB) that is the compressed into multiple scale from the original map data is recommended. In this study, the map generalization methodology for the cadastral map by applying overlay with topographic map and polygon generalization technique is suggested. This process is composed of three steps, re-constructing the network data of topographic map, polygon merging of parcel lines according to network degree, and applying line simplification techniques. Proposed methodologies are applied to the cadastral map in Suwon area. The result map was generalized into 1:5,000, 1:20,000, 1:100,000 scale, and data compression ratio was shown in 15% 8% 1% level respectively.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.04a
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• pp.461-464
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• 2001

최근 컴퓨터관련 모든 분야에서 '실시간(Real-Tine)' 기술이 각광을 받고 있으며 그에 따라 각 분야에 따른 요구사항에 맞춰 변형되어 연구, 응용되고 있다. 그 중에서도 운영체제 레벨에서 실시간 프로세스를 지원할 수 있는 실시간 어플리케이션 분야 연구가 활발해지고 있다. 이러한 실시간 어플리케이션 분야에서 디자인 효율성과 시스템 신뢰도를 높이기 위해 일반화된 형태의 디자인 스타일과 디자인 단계 적시성 서비스 기능 보장 등의 실시간 컴퓨팅 패러다임을 실현하기 위한 연구가 주목받고 있다. 이에 따라 본 논문에서는 최근 인기가 급증하고 있는 LINUX 시스템에서 일반화된 형태의 디자인 스타일을 지원하고 디자인 단계 적시성 서비스를 보장하는 실시간 객체 모델로서 뛰어난 TMO 모델의 실행 엔진을 개발하는 연구에 대해 소개한다.

• Journal of the Korean association of regional geographers
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• v.15 no.2
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• pp.307-315
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• 2009

The purpose of map generalization is a method of map making to transmit the concise cartographic representation and geographic meaning. New generalization algorithm has been developed to be applied in the digital environments by the development of computer cartography. This study aims to look into possibilities of the multiscale mapping by generalization in application with the coordinate transformation and LoD(level of detail) in the web cartography. A method of the coordinate transformation is to improve a transmission of spatial data. Lod is a method which is making web map with selection spatial data by zoom level of users. Layers for test constructed contour line, stream network, the name of a place, a summit of mountain, and administrative office. The generalization was applied to zoom levels by scale for the linear and polygonal features using XML-Based scalable vector graphics(SVG). Resultantly, storage capacity of data was minimized 41% from 9.76mb to 4.08mb in SVG. Generalization of LoD was applied to map elements by stages of the zoom level. In the first stages of zoom level, the main name of places and administrative office, higher order of stream channels, main summit of mountain was represented, and become increase numbers of map elements in the higher levels. Results of this study can help to improve esthetic map and data minimization in web cartography, and also need to make an efforts to research an algorithm on the map generalization over the web.

• Journal for History of Mathematics
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• v.20 no.3
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• pp.43-58
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• 2007

We review the eastern frog jump game and the western solitaire to apply the Baduk Pieces Game to mathematical education. This study introduce a didactical method of Baduk Pieces Game which is constructed with simplification, generalization, and extension. This didactical applications of the Baduk Pieces Game gives the students opportunities of patterns, generalization, and problem solving strategies.