• Journal of the Korean earth science society
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• v.23 no.3
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• pp.234-241
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• 2002

The purpose of the study is to investigate the applicability of portfolio assessment to ordinary elementary science classes, and the effects of a portrolio assessment on students' science achievement, inquiry ability, and science attiudes. Two schools were sampled from a metropolitan area, a city, and three schools from rural area in central Korea. Two fifth-grade classes were sampled from each school selected, and one class is assigned to experimental group and the other to control group, respectively. The total number of participants of the study are 475. Portfolio assessmest was administered to experimental group, and conventional teaching to control group for two and half month. Science achievement test, science inquiry ability test, and science attitudes test were administered as a pre- and post-test. Portfolio asseddment seems to be applecable to ordinary elementary science classroom. Statistically meaningful difference was not found in students' science achievemant by group, region, and sex. Students' inquiry ability and science attitudes showed statistically meaningful difference by region rather than group. Experimental group showed more positive scores on some sub-domains of science attitudes, such as perception on science education, and science career, interests in science activity, and criticism. In conclusion, portfolio assessment can be applicable to ordinary dldmentary science classrooms. The effects of portfolio assessment are at least the same as the traditional teaching on student science achievement, inquiry ability, and science attitudes.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2012.07a
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• pp.451-452
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• 2012

PDP, LCD, IED 등의 디스플레이 패널 재료를 회두로 생장해 오던 디스플레이 장치 시장이 최근 3D라는 어플리케이션이 화두가 되어 시장 성장을 이끌어 오고 있다. 3D 디스플레이 장치 시장의 규모 및 성장속도에 비해 이를 이용할 수 있도록 하는 3D 서비스는 상대적으로 부족하다. 3D 디스플레이 장치를 확보하는 소비자가 늘어남에 따라 지속적으로 증가하는 3D 서비스에 대한 잠재 수요에 대응하기 위해 다양한 형태의 3D 서비스가 계획되고, 다양한 형태의 콘텐츠 제작이 이루어지고 있다. 3D 디스플레이 장치 및 서비스 시장의 지속적인 성장을 위해서는 제작 및 서비스되는 3D 콘텐츠에 대한 품질 평가 방법에 대한 연구가 선행되어야 한다. 이에 본 논문은 3D 비디오에 대해 사람들이 느끼는 주관적 품질 평가 방법을 제안한다. 하나의 영상 도메인에 표현되던 2D 영상과 달리 스테레오스코픽 비전 방식의 3D 입체 영상은 오른쪽과 왼쪽, 두 개의 영상 도메인에 각 각 표현된다. 또한 양쪽 영상의 차이로 인해 깊이감을 인식할 수 있게 된다. 본 논문에서는 양안에 입력되는 영상의 품질을 각각 측정하고, 두 영상의 차이가 이끌어내는 깊이감을 분석하여 입체영상 전체의 품질 평가에 이용하는 방법을 제안한다.

• Journal of the Korean Society of Radiology
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• v.17 no.6
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• pp.947-955
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• 2023

This study was conducted to investigate the awareness of spent nuclear fuel among residents in nuclear power plant areas and use it as basic data for establishing a disposal facility for high-level radioactive waste. 204 questionnaires collected online were analyzed using SPSS Window Ver 28.0. To verify differences between groups, t-test and one-way ANOVA were performed. And correlation analysis was conducted to confirm the relationship between variables. As a result, first, risk perception regarding nuclear-related accidents showed statistically significant differences depending on gender and educational level. The position on the construction of a permanent disposal facility for spent nuclear fuel showed a statistically significant difference depending on gender, education, and age, and the perception of the importance of each evaluation standard for establishing a spent nuclear fuel management plan showed a statistically significant difference depending on education and age. In terms of trust in information-providing institutions, trust in the National Assembly was found to be the lowest. Second, the results of the correlation analysis between variables showed that local residents are aware that an alternative to the current disposal of spent nuclear fuel is needed, and that financial support for the construction of a permanent disposal facility is needed. Therefore, in order to build a high-level radioactive waste disposal site, it is believed that it is necessary to increase trust in the government, collect opinions from local residents, and provide economic support.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.3
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• pp.747-754
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• 2014

In spite of its usefulness for health monitoring of structures on steady external load, the statistical pattern recognition technology (SPRT), based on Mahalanobis distance theory (MDT), is not good enough for the health monitoring of structures on large variability external load like earthquake. Damage is usually determined by the difference between the average measured value of undamaged structure and the measure value of damaged one. So when external variability gets larger, the difference gets bigger along, which is thus easily mistaken for a damage. This paper aims to overcome the problem and develop an improved Mahalanobis distance theory (IMDT), that is, a SPRT with revised MDT in order to decrease external variability so that we will be able to continue to monitor the structure on uncertain external variability. This method is experimentally tested to see if it precisely evaluates the health of a cable-stayed bridge on each general random load and earthquake load. As a result, the IMDT is found to be valid in locating structural damage made by damaged cables by means of data from undamaged cables. So it is proved to be effectively applicable to the health monitoring of bridges on external load of variability.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.24 no.3
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• pp.73-97
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• 2013

This study examined Records Management(RM) practice of public enterprises supervised by National Archives of Korea(NAK). These enterprises are included among public institutions mandated to perform RM according to Public Records Management Act of 2006. The study performed telephone interviews of 8 records managers employed in public enterprises and investigated current status of RM practices, perception of the practices and records managers within the enterprises and treatment to them, as well as opinions of the NAK's assessment of RM in public institutions, While non-electronic records were managed in an appropriate manner, electronic records needed to be transferred, disposed of, and preserved properly. The majority of interviewees expressed positive opinions on the contribution of RM to effectiveness and transparency of the enterprises. However, RM was perceived as irksome work conducted by those in a low position. More interviewees were permanent contract workers or contract personnel than regular employees. They felt a sense of deprivation due to the discrepancy of annual incomes among public enterprises and the differences in treatment and attitude toward between contract workers and regular workers. Interviewees suggested that NAK's assessment of RM was useful since it provided a basis for RM in their institutions. Yet, they pointed out that its measurements were lack of consistency and relevance to public enterprises because those focused on RM in governmental organizations. They also noted that RM practices that the assessment do not cover might be ignored.

• International Commerce and Information Review
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• v.13 no.4
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• pp.463-484
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• 2011

The survey was conducted by Chinese students who currently attend universities for the purpose of evaluating factors that determine the quality of educational services of universities in Korea. Three public universities and five private universities in Kyungsang province were surveyed for the purpose of this study with standardized questionnaires. The study raised questions on four different fronts: 1) Is there a difference in the importance of evaluation factors by Chinese student's on the quality of educational services between public universities and private ones? 2) Is there a difference in the degree of satisfaction felt by Chinese students who attend public universities or private ones? 3) Are there any significant differences in the importance of evaluation factors and satisfaction with the quality of educational services? 4) How different the relative influence of evaluation factors has on satisfaction with the quality of educational services for overall Korean university system? The results of this study showed that there was no statistical difference in signification in the importance of evaluation factors on the quality of educational services between public universities and private universities. Only the relationship factor in criteria four had an effect on satisfaction with quality of educational services between public and private universities. There were significant differences in the importance of evaluation factors and satisfaction with the quality of educational services. Chinese students determined that professor's lectureship as the most important factor, and is the ultimate deciding factor whether they attend a public or private university. It should be noted that studying and knowledge are primary concerns to them. Improvements in the quality of educational services in area of lectureship, physical education facilities, relationship, and administrative services are essential and crucially important for Korean universities in order to attract foreign students and to enhance their competitiveness in the global setting.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.433-436
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• 2017

조작해야 할 정보와 사물이 가장 많은 게임 장르인 RPG 장르에서 모바일 환경의 제약은 자연스럽게 사용자 인터페이스 패턴의 제약으로 연결된다. 다만 기기 환경도 스마트폰 디스플레이 화면이 예전보다 커지고 자동 전투 기능의 활용으로 조작의 대상과 적시성을 감소시키면서 최근에는 그 제약이 개선되었다는 평가가 있다. 이 논문에서 우리는 지난 3년간 연도별로 가장 많이 플레이 된 모바일 RPG 게임 5개씩을 골라 주요 구성 요소의 전투 창에서의 배치 패턴을 분석하고 그러한 패턴이 실제로 사용자들에게 어떻게 인식되고 있는지 조작 편의성을 중심으로 만족도 평가를 실시하였다. 4점 척도로 적극적 평가를 요구한 9개의 설문에서 이 장르 사용자들은 대체로 70% 이상의 만족도를 보이고 있었으며 일부 설문에서만 게임 간 차이가 발견되었다.

• 한국IT서비스학회:학술대회논문집
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• 2003.11a
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• pp.316-322
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• 2003

[ ${\ulcorner}$ ]2003 중소기업 정보화 수준 평가${\lrcorner}$ 결과, 중소기업의 정보화 수준은 49.22점으로 대기업의 70%에도 미치지 못하는 것으로 조사되었다. 본 조사는 정보화 추진의지, 추진환경, 설비수준, 활용수준 등 네 평가부문으로 중소기업의 정보화 수준을 평가하였는데, 평가결과 국내 중소기업은 추진환경이 가장 취약한 것으로 나타났다. 한편 기업의 정보화 발전단계를 다섯 단계로 설정 모형화한 결과, 단계별 정보화와 평가부문간에 유의적인 차이를 보였고 각 단계별 진전에 필요한 요인들도 상이하게 나타났다. 현재 중소기업은 정보화 발전단계 중 세 번째 단계인 업무효율화 단계로, 다음 단계로 발전하기 위해서는 추진환경 개선과 함께 정보시스템의 확대 및 유지노력이 필요하다. 또한 일정 수준 이상의 중소기업에게는 정보화에 따른 역기능을 예방 대응하기 위한 정책적 지원이 필요하며, 정보화에 대한 인식 전환과 다양한 정보화 교육을 통한 시스템 활용수준의 제고 노력이 필요하다.

• Informatization Policy
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• v.24 no.1
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• pp.79-99
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• 2017

Despite the early success story, the pan-industry diffusion of big data has been slow mostly due to lack of confidence of the value creation and privacy-related concerns. The problem leads us to the need to a stakeholder analysis on the adoption process of big data. The present study combines technology acceptance model, task-technology fit theory, and privacy calculus theory to integrate the positive and negative factors on the big data adoption. The empirical analysis was performed based on the survey from the current and potential big data users. Results revealed perceived usefulness, task-technology fit, and privacy concern are significant antecedents to the intention to use big data. Furthermore, there are significant differences in the perceptions of each constructs among groups divided by the types of big data use, with several exceptions. And the control effect was found in the magnitude of the relation between independent variables and dependent variable. The theoretical and politic implications of the analysis are discussed as to the promotion of big data industry.

• Information Systems Review
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• v.16 no.3
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• pp.1-23
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• 2014

This research uses the Analytical Hiararchy Process (AHP) to scientifically and systematically calculate the weightings of attributes as well as dimensions considered for assessing an informational website. The present paper aims at observing and using the computed weightings to comparatively examine the perceptions of customer users and business users. We use the 3C-D-T (i.e., Content, Community, Commerce, Design, and Technology) framework to conduct a case study where we review and assess restaurant websites and calculate attribute weightings on these websites. Data used for website review was collected in two phases. Data in the first phase was collected from customer users, and data in the second phase was from business users who had registered in the same websites. Users were instructed to perform a pairwise comparison of the relative importance of website attributes. Our data analysis revealed that the customer users and business users demonstrated different views on the relative importance of the individual attributes. Based on the findings, we suggested that business users of restaurants should adapt their views to the customers' views to minimize perceptional differences, thereby increasing customer satisfaction and accomplishing successful business outcomes.