• Journal of The Korean Association For Science Education
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• v.27 no.4
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• pp.354-365
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• 2007

The purpose of this study was to understand the undergraduate students' response characteristics by their cognitive conflict levels and result predictions when they were confronted with the learning tasks of action & reaction and electric circuits. The 147 engineering college students who were enrolled at the introductory physics classes were selected as the subjects for this study. The students were grouped by cognitive levels and result predictions. First, in action and reaction task, the trend of suspecting experimental results and finding the reasons was dominant; however, in electric circuits, the trend of accepting the results was dominant. Second, the reasons for the responses on the subcategories of cognitive conflict were different by the level of cognitive conflict. The responses were influenced by students' preexisting knowledge, former experiences, learning habits, learning motivation, and epistemological beliefs, etc. The high conflict group recognized what they do not consider and was positive to reappraise their preconceptions, while the low conflict group showed the tendency of accepting the situation without doubt and low interest on learning physics. In conclusion, students responses showed differences in cognitive conflict levels, result predictions and presented conflict tasks. The research results, especially the response characteristics, suggest that more research on effective cognitive conflict strategies appropriate for different tasks and students' conflicts are necessary for effective physics teaching.

• Science of Emotion and Sensibility
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• v.13 no.3
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• pp.541-550
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• 2010

The present study examined whether the physical similarity of test stimuli affects P300 amplitude and detection accuracy for the P300-based concealed information test (P300 CIT). As the participant pretended suffering from memory impairment by an accident, own name was used as a concealed information to be probed by the P300 CIT in which the participant discriminated between a target and other (probe, irrelevant) stimuli. One group of participants was tested in the easy task condition with low physical similarity among stimuli, the other group was tested in the difficult task condition with high physical similarity among stimuli. Using the base-to-peak P300 amplitude, the interaction effect of task difficulty and stimulus type was significant at $\alpha$=.1 level (p=.052). In the easy task condition the difference of P300 amplitude between the probe and the irrelevant stimuli was significant, while in the difficult task condition the difference was not significant. Using peak-to-peak P300 amplitude, on the other hand, the interaction effect of task difficulty and stimulus type was not significant with significant differences of P300 amplitude between the probe and the irrelevant stimuli in both task difficulty conditions. The difference of detection accuracy between task conditions was not significant with both measures of P300 amplitude although the difference was much smaller when peak-to-peak P300 amplitude was used. The results suggest that the efficiency of P300 CIT would not decrease even when the perceptual similarity among test stimuli is high.

• Journal of The Korean Association For Science Education
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• v.28 no.1
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• pp.1-14
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• 2008

The image of science is one of the recurrent topics in science education research. In particular, we believe that students' images of Doing-Science-Well could be used for identifying not only students' perceived goals of science learning, but also practical guidelines of effective science teaching. In this study, the students' images of Doing-Science-Well were investigated with the following two research questions: (i) what are student's images of Doing-Science-Well?; (ii) in what contexts do students perceive that someone is doing science well? Thirty seven students in a high school in Seoul, Korea were asked to write their personal experiences by which they realized that someone was doing science well. The main results of the study are the following: Firstly, the images of Doing-Science-Well could be categorized into 'Einstein type', 'Socrates type', 'MacGyver type' and six more types. Secondly, with regard to contexts, students tended to realize that somebody is doing science well in terms of two kinds of contexts: 4 physical contexts and 6 psychological contexts. The findings led us to develop a frame of judging Doing-Science-Well, which combines the types and two kinds of contexts. The frame illustrates the multiplicity of the images of Doing-Science-Well.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.901-906
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• 2009

어린이 도서관은 일상생활 가까이에서 지역주민에게 지식정보 서비스를 제공할 뿐 아니라 공공도서관과의 연계를 통해 우리나라 전체 도서관 서비스의 수준을 발전시키고자 하는 생활 친화적 문화기반 시설인 소규모 도서관(혹은 문고)시설이다. 즉 어린이 도서관은 접근성을 가장 큰 장점으로 하여 누구나 쉽고 편리하게 이용할 수 있는 고객중심의 공공도서관 서비스라고 할 수 있다. 어린이 도서관의 주 이용고객은 어린이와 주부로서 최근 이들이 함께 도서관을 이용하는 빈도가 증가하면서 어린이 도서관은 단순히 책을 빌리고 공부를 하는 장소에서 나아가 가족단위의 여가활동이 가능한 문화적 공간으로 변모하여가고 있다. 어린이 도서관은 기본적으로 책을 읽는 조용한 공간이지만 주 이용자가 6세 미만의 유아와 초등학교 저학년 어린이이기에 독서행위와 더불어 또래 친구들과의 친교행위. 부모님과의 정서적 유대감 형성행위, 소규모 근육활동과 같은 놀이행위가 병행된다. 또 어린이 도서관에서 사용되어지는 정형적인 모듈의 서가를 비롯한 입식. 좌식 테이블과 의자들은 소수의 디자이너에 의해 만들어진 것이지만 그것을 이용하는 다수의 어린이들은 디자이너의 의도와 방법에 따라 가구를 사용하는 것 외에도 환경적 컨텍스트에 맞추어 가구의 새로운 쓰임을 발견하며 훨씬 더 다채로운 방법으로 가구를 사용하고 있다. 따라서 본 연구의 목적은 독서 및 놀이 행위 시 아동-부모의 상호작용 방법에 기반하여 아동의 가구사용방법(Way of Seat)을 알아보고 이를 바탕으로 어린이의 행태정보를 모델링하여 가구를 사용하는 어린이의 다양한 행위 이면에 내재된 요구를 파악하는데 있다. 가구를 사용하는 어린이의 다양한 행태 이면에 내재한 어린이만의 특성과 요구를 알아보기 위해서는 먼저 어린이 도서관이라는 특수한 물리적 환경요인 및 사용자 컨텍스트(Context)에 대한 이해가 선행되어야 한다. 이를 위해 기반조사 및 어린이 도서관 방문을 통한 정황조사(Contextual Inquiry)를 실시하였다. 이를 통해 6세 미만의 유아와 초등학생의 가구사용방법(Way of Seat)과 독서 및 놀이 행위 시 행태를 관찰하여 Photo Based Research를 바탕으로 어린이의 행태정보를 모델링 하였다.

• Transactions of the KSME C: Technology and Education
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• v.4 no.1
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• pp.27-34
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• 2016

This preliminary study investigated data mining-based methods to assess and predict the performance of geothermal heat pump(GHP) system. Data mining is a key process of the knowledge discovery in database (KDD), which includes five steps: 1) Selection; 2) Pre-processing; 3) Transformation; 4) Analysis(data mining); and 5) Interpretation/Evaluation. We used two analysis models, categorical and numerical decision tree models to ascertain the patterns of performance(COP) and electrical consumption of the GHP system. Prior to applying the decision tree models, we statistically analyzed measurement database to determine the effect of sampling intervals on the system performance. Analysis results showed that 10-min sampling data for the performance analysis had highest accuracy of 97.7% over the actual dataset of the GHP system.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.3
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• pp.35-59
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• 2018

A book review expands readers' choice of resources by providing them with the contents and bibliographic data of various books. It also functions as a reader support service designed to enrich their reading experiences. In particular, in the field of children's reading, literary devices are used to convey knowledge and information to children. Therefore, a review for a children's book should help children follow a book with further readings so that they can expand their literary imagination through comparative reading. In light of the above, this study looks into the case of a children's story entitled Little Red Riding Hood to identify the points that should be addressed in the "Literature Comparison" section of a book review in order to suggest further readings to readers. First, the review should provide an objective description of the content of Little Red Riding Hood. Second, it should explain the literary value of the reviewed book and the discourse that surrounds it so as to analyze its unique features that separate it from other literary works. Third, the review should provide bibliographic information on other works that use narrative structures adapted from those of Little Red Riding Hood. Fourth, it should broaden readers' choice and access by introducing, if any, works adapted from Little Red Riding Hood into other media.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.6
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• pp.1549-1560
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• 2015

For the past few years, personal information breach incidents, great and small, occurred constantly. Accordingly, the Personal Information Protection related Ordinances are enacted and amended persistently, and the information security products also keep advancing and developing in the same way. There are the certification systems such as Common Criteria Evaluation and Validation(CC) and Korea Cryptographic Module Validation Program(KCMVP) for the information security products. These are also strictly carried out. This paper analyzes and categorizes the 5 Personal Information Protection related Ordinances in the aspects of technical protection measures by using key words. Here are the 5 related ordinances; 'the Personal Information Protection Act', 'the Act on Promotion of Information and Communications Network Utilization and Information Protection, etc', 'the Act on the Protection, Use, Etc, of Location Information', 'the Use and Protection of Credit Information Act', and 'the Electronic Financial Transactions Act.' Moreover, this study analyzes the association between the technical protection measures in the 5 relevant laws and the information security products that are obtaining the CC Evaluation & Validation(CC) and the products that are now produced at KISIA's member companies.

• Journal of the Economic Geographical Society of Korea
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• v.19 no.1
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• pp.1-17
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• 2016

This paper attempts to explore the spatial structure of inventor networks and their determinants among 230 shi-gun-gu regions in Korea by investigating the residence of co-inventors engaged in Korean patent applications to the Korean Intellectual Office and exploiting a zero inflated negative binomial model to accommodate an estimation to the count nature of a dependent variable and its excess of zeros. Several variables are found to affect the spatial linkage of inventor networks. Spatial links extend beyond the region if it has more own R&D-related specific assets (private R&D, patent productivity, population, education); if it is physically close to and has technological similarity with the other region. The assets of the other region plays a positive role if, in a similar way, the other region has more R&D-related specific assets.

• Convergence Security Journal
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• v.1 no.1
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• pp.31-35
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• 2001

Currently if we are to make a thought to depend on our fast developing information technology, a future war is necessarily to be made a situation of a cyber information warfare. A attacker in the cyber information warfare is able to make attack a military or a civil information and communication system, especially if a attack of a hacker, a virus or a electromagnetic pulse bomb at a military C4ISR system is able to make a confusion or a interruption in military operations, they are available to attack as a real time with non restrictions of physical distance, time, weather and space. While a expenditure of carrying out the cyber information warfares is the lowest expenditure, a effect of carrying out the cyber information warfares is the greatest effect in side of a interruption of information, a confusion, a terror, a pillage and crime of the people. This paper is to introduce "weapons of cyber information warfares", "offence capability of cyber information warfares about several nations" and to propose "a cyber information warfare organization" or the future knowledge warfare. the future knowledge warfare.

• Archives of design research
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• v.16 no.3
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• pp.299-308
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• 2003

The existing market patterns and social structures have been changed according to the trends of digital and informational society of the 21st century. The characteristics of the consumption market is that the balance of power moves from enterprises to consumers. As consumers’ demands are diversified according to life quality enhancement, many products are based on main aspects of human experiences, emotions and values. Standardized functions and services of products cannot capture consumers to a great extent any more. A notable aspect is that consumers want products or services that can oner movable experiences. Future products must appeal to emotion, not to reason of consumers. Now consumers purchase styles, experiences and stories contained in products, not products themselves. That is, the key to decision to purchase products is the satisfaction of emotional values. Users'emotions diversified due to the development of industrial designs demand the development of new designs that can represent new trends of users. User-centered values imply the change of people's purchasing trends. This indicates that there is a need to change physical aspects such as price or functions into individual emotions and characters. In addition, studies are required on design concepts to pursue new emotional values, apart from functional type designs. It is time for designers to suggest initiative and rational directions for this changing era.