• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.339-342
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• 2018

The resent work is about the design and installation of the 60 URT heat pump according to the need. This design is eco-friendly, easily available, reduces maintenance and electricity cost. The dimensions of heat pump is $1500mm{\times}500mm{\times}1940mm$ (i.e length 1500 mm, width 500 mm and height 1940 mm) is installed on site. It can be operated with automation (PID) and controlled by sensors. The performance of and heat pump is evaluated experimentally by the monitoring system.

• The Mathematical Education
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• v.40 no.2
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• pp.253-263
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• 2001

Developing mathematical thinking skills is one of the most important goals of school mathematics. In particular, recent performance based on assessment has focused on the teaching and learning environment in school, emphasizing student's self construction of their learning and its process. Because of this reason, people related to mathematics education including math teachers are taught to recognize the fact that the degree of students'acquisition of mathematical thinking skills and strategies(for example, inductive and deductive thinking, critical thinking, creative thinking) should be estimated formally in math class. However, due to the lack of an evaluation tool for estimating the degree of their thinking skills, efforts at evaluating student's degree of mathematics thinking skills and strategy acquisition failed. Therefore, in this paper, mathematical thinking was studied, and using the results of study as the fundamental basis, mathematical thinking process model was developed according to three types of mathematical thinking - fundamental thinking skill, developing thinking skill, and advanced thinking strategies. Finally, based on the model, evaluation factors related to essential thinking skills such as analogy, deductive thinking, generalization, creative thinking requested in the situation of solving mathematical problems were developed.

• Journal of Engineering Education Research
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• v.23 no.6
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• pp.27-32
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• 2020

The aim of this paper is to explore various ways to utilize critical thinking in engineering education. To this end, this paper, in the light of the relationship between critical thinking and the program learning performance of ABEEK, reviews engineering design education, engineering ethics education, and engineering communication education, which are major areas where critical thinking can be utilized in engineering education. As a result, it was confirmed that critical thinking skills, especially the elements and criteria of critical thinking, can contribute to the creative problem-solving process in engineering design education, the rational decision-making process in engineering ethics education, and the effective communication process in engineering communication education.

• Journal of Gifted/Talented Education
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• v.24 no.4
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• pp.679-701
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• 2014

As the validity issue of teacher nominations for the identification of gifted students has been raised recently, this study purports to test the validity of teacher nominations for selecting scientifically gifted students. As the criterion variables, domain specific traits such as science creative problem solving skills and science attitudes and domain general characteristics such as divergent thinking skills, creative attitudes, intrinsic motivation, and leadership were analyzed. Scientifically gifted students, potentially gifted students who had never been enrolled in gifted programs but were nominated as the scientifically gifted by teachers, and general class students participated in the study. The results of ANOVA showed that there were significant differences in all variables but originality factors of the TTCT and science creative problem solving skill test between gifted/nominated students and general class students; gifted/nominated students were significantly superior in these variables to general class students. The discriminant functions analysis yielded a discriminant function that significantly discriminated between gifted/nominated and general class students. Variables loaded on the discriminant function were science creative problem solving skills except for the originality subfactor, and science efficacy. These results imply that while teachers are likely to consider adaptation-oriented academic excellency related to logical thinking skills, problem solving skills, and science performance when nominating students, they may ignore the innovation-oriented property which is indicated as the fluency and originality factors of TTCT. Also, the criteria of teacher nominations are presumed to be congruent with the selection criteria of the gifted education program which pursued academic excellency as the educational goal. This suggests that with such criteria, high performing students in the science area can be sufficiently identified by teachers with no further identification procedures or/and tests.

• ETRI Journal
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• v.37 no.2
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• pp.428-437
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• 2015

This study was conducted to analyze the effect of information security activities on organizational performance. With this in mind and with the aim of resolving transaction stability in the securities industry, using an organization's security activities as a tool for carrying out information security activities, the effect of security activities on organizational performance was analyzed. Under the assumption that the effectiveness of information security activities can be bolstered to enhance organizational performance, such effects were analyzed based on Herzberg's motivation theory, which is one of the motivation theories that may influence information protection activities. To measure the actual attributes of the theoretical model, an empirical survey of the securities industry was conducted. In this explorative study, the proposed model was verified using partial least squares as a structural equation model consisting of IT service, information security, information sharing, transaction stability, and organizational performance.

• Journal of Creative Information Culture
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• v.6 no.1
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• pp.41-48
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• 2020

In order to represent and process spatial data, hierarchical data structures such as a quadtree or a bintree are used. Various approaches for linearly representing the bintree have been proposed. S-Tree has the advantage of compressing the storage space by expressing binary region image data as a linear binary bit stream, but the higher the resolution of the image, the longer the length of the binary bit stream, the longer the storage space and the lower the search performance. In this paper, we construct a hierarchical structure of multiple separated bintrees with a full binary tree structure and express each bintree as two linear binary bit streams to reduce the range required for image search. It improves the overall search performance by performing a simple number conversion instead of searching directly the binary bit string path. Through the performance evaluation by the worst-case space-time complexity analysis, it was analyzed that the proposed method has better search performance and space efficiency than the previous one.

• The Journal of the Korea Contents Association
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• v.19 no.7
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• pp.314-322
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• 2019

The purpose of this study is to analyze the importance and performance of CK-1, The research subjects were self-enrolled questionnaires for students who took social economics subjects and analyzed the importance and performance using IPA. As a result of the research, it is necessary to establish the basis of social economic specialization in order to achieve the goal of CK-1, and it is necessary to establish educational curriculum related to industry and academy in addition to cultivating creative talents. And to improve the importance of these programs and improve their performance in order to enhance the undergraduate education and attract the creative economy. The implications of this study are as follows: The results of the evaluation to achieve the goals of CK-1 recognize that the importance and the performance of the social economy students are high. However, It is necessary to make efforts to improve the university constitution, to improve the education of the undergraduate education, and to attract the creative economy in order to characterize the local university targeted by the Ministry of Education and the project team.

• Korean Journal of Remote Sensing
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• v.39 no.2
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• pp.143-156
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• 2023

To precisely and reliably analyze the contents of the satellite imagery, recognizing the clouds which are the obstacle to gathering the useful information is essential. In recent times, deep learning yielded satisfactory results in various tasks, so many studies using deep neural networks have been conducted to improve the performance of cloud detection. However, existing methods for cloud detection have the limitation on increasing the performance due to the adopting the network models for semantic image segmentation without modification. To tackle this problem, we introduced the multi-branch neural architecture search to find optimal network structure for cloud detection. Additionally, the proposed method adopts the soft intersection over union (IoU) as loss function to mitigate the disagreement between the loss function and the evaluation metric and uses the various data augmentation methods. The experiments are conducted using the cloud detection dataset acquired by Arirang-3/3A satellite imagery. The experimental results showed that the proposed network which are searched network architecture using cloud dataset is 4% higher than the existing network model which are searched network structure using urban street scenes with regard to the IoU. Also, the experimental results showed that the soft IoU exhibits the best performance on cloud detection among the various loss functions. When comparing the proposed method with the state-of-the-art (SOTA) models in the field of semantic segmentation, the proposed method showed better performance than the SOTA models with regard to the mean IoU and overall accuracy.

• Korean Management Science Review
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• v.26 no.2
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• pp.37-59
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• 2009

Electronic brainstorming (EBS) to improve the process and outcomes of group decision making is an artifact of Information Systems legacy. Despite three decades of research with EBS in an effort to become a key resource of organizational performance, its performance when compared to that of nominal is inconclusive because of the recent debate over its usefulness in terms of productivity. Subsequent researchers have directed our attention to the re-examination of cognitive stimulation, which is considered the major benefit in computer-based idea generation, to explain the performance singularity in computer-based groups. While both cognitive and motivational factors that moderate and mediate the group-interaction process remain unexplored, individual differences that are tightly linked to creative behavior have been largely ignored to account for the discrepancy in performance. Since simulations have been widely used in situations where an outcome does not meet the assumptions, the notion of a group simulator and detailed simulation mechanisms are introduced to examine the potential effects of individual differences on the performance of computer-based idea generation groups. In addition, two prior studies that empirically explored cognitive mechanisms with the group simulator are showcased along with six propositions to initiate future research.

• Journal of the Economic Geographical Society of Korea
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• v.19 no.4
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• pp.660-676
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• 2016

The Suncheon city has new city image and brand as eco & garden city in national wide. This paper reviews the process, governance, and performance of creative-city related policy in Suncheon city, Korea. The new city image and brand, eco & garden city, were as a result of the related urban policies and its efforts to reserve and utilize the Suncheon Bay Wetland such as the establishment of Green Suncheon 21, the Reed Festival of Suncheon Bay, the ecological park creation projects for Suncheon Bay Wetland, the ICEXPO 2013, and the Suncheon Bay National Garden since 1995. The Dongsa Research Institute has been played very import roles in the process of civic movement for Suncheon Bay Wetland reservation. After holding the ICEXPO 2013, the Suncheon city has achieved various performances such as new city image and brand, the Suncheon Bay National Garden, social and physical infrastructure to pursue future creative-city related policies.