• Title/Summary/Keyword: Circle Map

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The Effect of Elementary Science Teaching Program with Circle Map on Learning Motive and Learning Achievement (Circle Map를 활용한 초등학교 과학수업이 학습 동기와 학업성취도에 미치는 영향)

  • HONG, Yu Kyoung;LEE, Seok Hee
    • Journal of Fisheries and Marine Sciences Education
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    • v.29 no.3
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    • pp.799-810
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    • 2017
  • In this study, to raise the scientific literacy for students, the teaching and learning program was developed by applying the Circle Map. The purpose of this study was to find out the Effect of Elementary Science Teaching Program with Circle Map on Learning Motive and Learning Achievement. To this end, the 6th grade classroom of A-elementary school located in Jeju-city was selected the experimental group (25 patients). And the other 6th grade classroom in the same school was selected to the comparative group (25 patients). The experimental group was conducted applying the Circle Map. Comparison group has been conducted lesson program in accordance with the general science class teacher guide. Was through a pre-test of science learning motivation and academic achievement level can be assumed in the same group. After completing the experimental treatment by conducting a post-mortem examination was statistically validated. In this study, the following conclusions were obtained. First, elementary science class which applied Circle Map had the effect of to improve the scientific motivation(p <.05). In particular, association in the experimental group were higher than the scores of the comparative group, the difference was significant. Second, the Circle Map applied to elementary science class had a significant effect on improving science achievement. The experimental group which applied Circle Map was higher than the comparative group in science achievement post-test comparison. Between the groups showed a significant difference between the two groups(p <.05). The above findings, Elementary science class which applied Circle Map can be concluded to be effective in science and science achievement motivation. Therefore, applying the Circle Map of elementary science class could be useful in science teaching and learning methods. In addition, when it is determined through the previous study, applying the Circle Map classes will be able to derive a meaningful learning also subjected to a number of fields and areas.

Revitalization Strategy of Information Security Industry Using Cognitive Map Analysis (인지지도분석을 통한 정보보호 산업 활성화전략)

  • Lee, Jung Mann;Cho, Ilgu;Rim, Myung Hwan
    • Journal of Information Technology Applications and Management
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    • v.23 no.2
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    • pp.177-194
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    • 2016
  • This study analyzed President Park's speeches and the government's industry policy in the field of information security using cognitive map. The relationship analysis between policy tool variables and policy goal variables was employed to derive revitalization strategy of information security. This paper found that entrepreneurship revitalization has very strong causality with expansion of domestic market and global market. But, on the other hand, HR development has very weak causality with job creation and future growth driver because the labor market in the information security industry is poor and its transfer rate to other industry is very high. This study showed that this cognitive map could be characterized by a scarcity of feedback loops and a strong emphasis on the positive loops in the structure of virtuous circle. In this paper, we also constructed a comprehensive cognitive map on the policy vision of information security, showing that there are a risk of cyber threat, an opportunity of new fusion security market, information security reinforcing circle, global economic circle, and domestic market circle.

NONWANDERING POINTS OF A MAP ON THE CIRCLE

  • Bae, Jong-Sook;Cho, Seong-Hoon;Min, Kyung-Jin;Yang, Seung-Kab
    • Journal of the Korean Mathematical Society
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    • v.33 no.4
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    • pp.1115-1122
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    • 1996
  • In study of the dynamics of a map f from a topological space X to itself, a central role is played by the various recursive properties of the points of X. One such property is periodicity. A weaker property is that of being nonwandering. Intermediate recursive properties include almost periodicity and recurrence.

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Effective Educational Use of Thinking Maps in Science Instruction (과학수업에서 Thinking Maps의 효과적인 활용 방안)

  • Park, Mi-Jin;Lee, Yong-Seob
    • Journal of the Korean Society of Earth Science Education
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    • v.3 no.1
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    • pp.47-54
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    • 2010
  • The purpose of this study is finding examine the Thinking Maps and how to use Thinking Maps effectively in Science Education. The result of this study were as follows: First, There are 8 type Maps, Circle Map, Tree Maps, Bubble Map, Double Bubble Map, Flow Map, Multi Flow Map, Brace Map, Bridge Map. Each Maps are useful in the following activities ; Circle Map-Express their thoughts. Tree Map-Activities as like determine the structure, classification, information organization. Bubble Maps-Construction. Double Bubble Map-Comparison of similarities and differences. Flow Map-Set goals, determine the result of changes in time or place. Multi Flow Map-Analysis cause and effect, expectation and reasoning. Brace Map-Analysis whole and part. Bridge Map-Activities need analogies. Second, each element of inquiry has 1~2 appropriate type of Thinking Maps. So student can choose the desired map. Third, the result of analysing of Science Curriculum Subjects, depending on the subject variety maps can be used. Therefore the Thinking Maps can be used for a variety on activities and subject. And student can be selected according to their learning style. So Thinking Maps are effective to improve student's Self-Directed Learning.

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A Complete Feature Map Building Method of Sonar Sensors for Mobile Robots (이동 로봇을 위한 초음파 센서의 완성도 높은 형상지도 작성법)

  • Lee, Se-Jin;Lim, Jong-Hwan;Cho, Dong-Woo
    • Journal of the Korean Society for Precision Engineering
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    • v.27 no.1
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    • pp.64-75
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    • 2010
  • This study introduces a complete feature map building method of sonar sensors for mobile robots. This method enhances the reality of feature maps by extracting even circle features as well as line and point features from sonar data. Edge features are, moreover, generated by combining line features close to circle features extracted around comer sites. The uncertainties of the specular reflection phenomenon and wide beam width of sonar data can be, therefore, reduced through this map building method. The experimental results demonstrate a practical validity of the proposed method in those environments.

The Use of Concept Circle Maps in Science Teaching of Elementary School (초등학교 과학수업에서 개념원도의 활용)

  • Koo, Duk-Gil;Lee, Yu-Mi;Bae, Young-Boo
    • Journal of the Korean earth science society
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    • v.24 no.7
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    • pp.595-603
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    • 2003
  • The study investigated the effect of a social constructivist model on changes of concept on 103 4th graders in three elementary schools. In particular, it analyzed whether the application of a concept circle map developed student understanding of the concept. After a one month study period, the 103 students took a pencil and paper test on changes of concepts learned. The results indicated that the social constructivist model positively influenced student concept development. In conclusion, a concept circle map used on a social constructivist model may be employed as a tool for diagnostic or formative evaluation.

CONTINUITY OF THE FRACTIONAL PART FUNCTION AND DYNAMICS OF CIRCLE

  • LAL, BABU;MIGLANI, ASEEM;SINGH, VIZENDER
    • Journal of applied mathematics & informatics
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    • v.40 no.5_6
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    • pp.1167-1179
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    • 2022
  • In this paper, we obtain some subsets of real numbers (ℝ) on which a fractional part function is defined as a real-valued continuous function. This gives rise to the analysis of the continuous properties of the fractional part function as a real-valued function. The analysis of fractional part function is helpful in the study of the dynamics of circle.

Image Encryption Based on Quadruple Encryption using Henon and Circle Chaotic Maps

  • Hanchinamani, Gururaj;Kulkarni, Linganagouda
    • Journal of Multimedia Information System
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    • v.2 no.2
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    • pp.193-206
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    • 2015
  • In this paper a new approach for image encryption based on quadruple encryption with dual chaotic maps is proposed. The encryption process is performed with quadruple encryption by invoking the encrypt and decrypt routines with different keys in the sequence EDEE. The decryption process is performed in the reverse direction DDED. The key generation for the quadruple encryption is achieved with a 1D Circle map. The chaotic values for the encrypt and decrypt routines are generated by using a 2D Henon map. The Encrypt routine E is composed of three stages i.e. permutation, pixel value rotation and diffusion. The permutation is achieved by: row and column scrambling with chaotic values, exchanging the lower and the upper principal and secondary diagonal elements based on the chaotic values. The second stage circularly rotates all the pixel values based on the chaotic values. The last stage performs the diffusion in two directions (forward and backward) with two previously diffused pixels and two chaotic values. The security and performance of the proposed scheme are assessed thoroughly by using the key space, statistical, differential, entropy and performance analysis. The proposed scheme is computationally fast with security intact.

TENSOR PRODUCT SURFACES WITH POINTWISE 1-TYPE GAUSS MAP

  • Arslan, Kadri;Bulca, Betul;Kilic, Bengu;Kim, Young-Ho;Murathan, Cengizhan;Ozturk, Gunay
    • Bulletin of the Korean Mathematical Society
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    • v.48 no.3
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    • pp.601-609
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    • 2011
  • Tensor product immersions of a given Riemannian manifold was initiated by B.-Y. Chen. In the present article we study the tensor product surfaces of two Euclidean plane curves. We show that a tensor product surface M of a plane circle $c_1$ centered at origin with an Euclidean planar curve $c_2$ has harmonic Gauss map if and only if M is a part of a plane. Further, we give necessary and sufficient conditions for a tensor product surface M of a plane circle $c_1$ centered at origin with an Euclidean planar curve $c_2$ to have pointwise 1-type Gauss map.