• Journal of the Korean School Mathematics Society
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• v.11 no.4
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• pp.609-627
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• 2008

The purpose of this research was to investigate the relationship between the students' strategy types and the recognition for proportional situations. The students' strategy types which were based on the results of ratio and proportion tests were divided into an additive type, a multiplicative type, and a formal type. This research analyzed the students' activities of categorization when were given the proportional problems and nonproportional problems to the students. And it also explored how to develop students' recognizing for the discrimination between the proportional situations and nonproportional situations. The results was the following. First, the students didn't discriminate the proportional situations and the nonproportional situations in the initial state but they came to discriminate little by little. Secondly, the students didn't discriminate the direct proportions and the inverse proportions until the last stage. Third, the multiplicative type was outperformed more than the formal type in solving the ratio and proportion problems but the formal type was outperformed more than the multiplicative type in discriminating between proportional situations and nonproportional situations. These results are interpreted as showing that solving ratio and proportion tasks and recognizing proportional situations are different aspects of proportional reasoning and it is necessary to understand multiplicative strategy with formal strategy in recognizing proportional situations.

• Journal of the Korea Society of Computer and Information
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• v.15 no.9
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• pp.77-85
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• 2010

As various convergency products have been actively developed, the study on user interface has been conducted a lot, and for more specific direction, users' experience-oriented user interface from user-oriented studies is recently developed. Such a tendency aiming to focus on product development to express users' emotion, the next step in the user-oriented development had difficulties in an objective approach, so the data based on previous users' experiences were presented as the basic data to establish user interface design process with grounds and design direction, and therefore it is available to show more specific and objective grounds. From this perspective, such psychological variables showing users' experiences like age and job are studied through surveys of users at the development of products, and products according to the variables are released. On the other hand, the products considering psychological difference distinguishing users' experiences as the cultural cap are not progressed yet. Despite the understanding of cultural difference, its decisive grounds are hard to distinguish like age, and job. Therefore, the cognitive concept about how to design menu information structure according to accident types that can be considered regarding user interface design among theoretical backgrounds about cultural difference. As the category according to the range of things among accident types, it is divided into analytical type and relational type to conduct a test on similarity and relations about the representative digital TV's menu information of the convergency product. As the result, analytical type and relational type showed difference and this study aims to use menu information concept considering this difference as explanatory variables of the users' experience-oriented development.

• Review of KIISC
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• v.4 no.2
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• pp.47-57
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• 1994

본 논문에서는 컴퓨터 통신망에 관련된 범죄를 유형별로 구분하고 이에 대한 기술적 방지대책을 구체적으로 제시한다. 본 논문은 컴퓨터 범죄를 경험적 기준에 의하여 구분하며 방지대책과의 관계도 분석한다. 기술적 방지대책으로 전형적인 OSI 참조모델에 기초한 보호모델 구조와 컴퓨터 범죄의 각 유형에 대해서 대처할 수 있는 보호 서비스 및 메카니즘 그리고 적용 가능한 계층을 종합적으로 분석 제시한다. 또한 보호메카니즘을 구현하는데 사용되는 대표적 보호알고리듬의 수행시간에 관해서도 기술한다.

• Journal of the Korea Convergence Society
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• v.10 no.12
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• pp.399-410
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• 2019

The purpose of this study was to find out the types and characteristics of 'good camping' on the base of camping participant's recognition with Q-methodology. The subjects were selected 15 Q population and did 1:1 interview on them. With those statements, this study was selected 45 P samples and performs Q sort with them. The Q sort result was analyzed by using QUANL program. The results of this study, First, the characteristics of company·break type can be defined with comfort break in nature and the companion except family. Second, family activity type can be defined with the various activities with family. Third, nature·activity can be defined with free hobby activities in nature.

• Journal of the Speleological Society of Korea
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• no.93
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• pp.13-25
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• 2009

This study, which includes case studies that provide information of cave tour resources, considered a variety of selected variables of the internal and external parts of caves with the expanded factors of the academic classification in caves. It uses the cluster analysis, one of the multivariate analysis techniques, and applied the results for review. As a result, public caves can present multiple classification criteria according to the factors of the surrounding area's human environment. The result, classified by the region in public caves, is derived from this study.

• 한국정책학회보
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• v.22 no.3
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• pp.235-266
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• 2013

본 연구는 일반인들이 원자력 관련 기관에 대해서 가지는 다양한 신뢰유형이 원자력 수용성에 어떠한 영향을 미치는지를 분석하였다. 이를 위해 선행연구의 검토를 통하여 신뢰를 대상별, 유발요인별로 기관에 대한 신뢰, 사람에 대한 신뢰, 인지적 신뢰, 정서적 신뢰 등으로 구분하였다. 최종적으로 이들을 결합하여 기관에 대한 인지적 신뢰, 기관에 대한 정서적 신뢰, 사람에 대한 인지적 신뢰, 사람에 대한 정서적 신뢰 등 신뢰유형을 나누어서 원자력 수용성에 대한 이들 신뢰유형의 상대적 영향력을 분석하였다. 또한 원자력에 대한 수용성은 강도에 따라 가장 약한 '현재의 원자력 발전소 유지'에 대한 수용성, '원자력 발전소 추가 건설'에 대한 수용성, 가장 강도가 강한 정책인 '핵폐기장 건설'에 대한 수용성 등으로 구분하였다. 분석결과를 통해 신뢰는 원자력의 수용성에 매우 중요한 요소임을 다시 한 번 강조할 수 있다. 또한 일반인들은 각각의 신뢰유형에 대해서 차별적으로 인지하고 있음을 보여주었으며 이에 따라 신뢰에 대한 다(多)유형, 다(多)차원적 고려가 필요함을 알 수 있었다. 한편 정책의 강도에 따라 가장 약한 정책에 대한 수용성에서는 기관에 대한 인지적 신뢰가 가장 강한 영향력을 가진 반면 정책에 대한 강도가 강해질수록 사람에 대한 정서적 신뢰의 영향력이 강해지는 것으로 나타났다. 이러한 결과는 원자력 정책의 주요 내용과 파급효과, 시민들에게 미치는 영향의 강도 등에 따라서 신뢰제고를 위한 차별적 전략이 필요함을 시사한다.

• Korean Journal of Plant Resources
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• v.13 no.3
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• pp.179-187
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• 2000

The achene morphology about 16 taxa of Korean Aster L. sensu lato were investigated to estimate its taxonomic values. The achene shapes were divided into four types; oblanceolate-oblong, obovate, oblong and obovate-oblong. The trichome shape on achene six types; uniseriate-conical, filiform, cylindrical, capitate type, long stalk capitate and globular. Their distributional features on upper part of achene four types; absent, sparse distribution of conical trichome, dense distribution of conical trichome and mixed distribution of conical and capitate trichome. The achene shapes and trichome characteristics were regarded to be a good characters in delimiting taxa because these did not differ among individuals in same taxa, but differ among the taxa. If Korean Aster L. sensu late were divided into Kalimeris, Heteropappus, Aster, Cymnaster, the capitate forms and mixed distribution of conical and capitate trichome were recognized as the good characters in delimting above section such as genus Kalimeris and Heteropappus, section Pseudocalimeris of Aster L. sensu stricto.

• Journal of Korean Society of Transportation
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• v.27 no.3
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• pp.17-28
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• 2009

To analyze the risk according to accident types by novice and experienced drivers, it is used the accidents data which occurred for 2 years(2005~2006) in Korea. It is defined that novice driver is a people who is not passed 1 year after getting a driving licence and experienced driver is a people who is passed 1 year in this study. It is used a risk model to compare and analyze about the risk between two groups. The risk model is developed to apply together two variables which is accidents frequency and severity. Then it is used a conceptual weight to find that proper rate between accident frequency and fatal accident frequency. It is found a weight($\omega=0.6$) to suitable value to apply a risk model. The results showed that collision with obstacles, angle collision($90^{\circ}$) types to novice driver group have bigger risk than experienced driver group.

• The Journal of the Korea Contents Association
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• v.22 no.3
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• pp.94-104
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• 2022

As the audio content market grows due to the spread of the AI speaker market and the influence of connected cars, the demand for podcast service is increasing. Therefore, in this study, the behaviors of podcast users were identified and the user types were classified. In the background study, podcast usage motives and user types were studied, and they were referred to when making the questionnaire. In the survey, preferred audio content was identified according to the situation, and in the in-depth interview, the user type and insights were derived by identifying the audio service usage behavior. As a result of the survey, there was little difference between preferred content for single listening and multitasking, but the difference in preferred content according to time period was statistically significant. The three user types derived from the in-depth interview were divided into users who listen alone for the purpose of study, find and listen to useful information quickly while on the go, and multitask and listen to the light and comfortable contents. It is expected that the results of this study will be an important reference for designing an audio content platform to improve user experience.

• The Journal of the Korea Contents Association
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• v.13 no.8
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• pp.72-82
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• 2013

The present study explored types of Twitter-mediated communication and emotional responses of Twitter users toward celebrities. Three perspectives of para-social interactions, information hub, and fandom were proposed as communication types on Twitter. Celebrities were classified by entertainer, politician, specialist, and blogger. Communication patterns according to each category of celebrities were analyzed. The patterns of emotional responses, which represents the use of emoticons and emotional expressions were also analyzed. The results show that the type of para-social interactions was frequently accepted for the interactions with politicians and specialists, while fandom style was salient for the entertainers. For the power bloggers, the users tend to adopt the type of information hub interaction. The use of emotions and emotional expressions were most frequent in case of fandom style communication and the messages to the entertainers. Implications were further discussed.