• Survey Research
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• v.10 no.2
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• pp.23-43
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• 2009

The purpose of this paper is to explain characteristics of panel data and display the academic cases using panel data. Panel data have merit to control various variables to influence respondents' attitude and estimate the effects of independent variables researchers are interested in by surveying the same respondents several times. However, panel data also have problems such as contaminating the respondents and reducing the number of the respondents as survey conducted several times. In spite of a few inherent problems of panel data, informations that panel data provide are valuable and some research themes could not be possible without panel data. This paper investigates the relationship between interest in elections and voting. Electoral stimulation such as watching TV debates influences the consistent voting intended. But changing nonvoters who had voting intention but not vote are not influenced by the electoral stimulation.

• Journal of dental hygiene science
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• v.8 no.3
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• pp.117-122
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• 2008

The purpose of this study was to delve into how to provide better and more oral health education to middle school students, and to boost school oral health projects. The subjects in this study were 430 middle schoolers. After their oral health awareness, knowledge and oral health care were investigated, the following findings were given: 1. Concerning concern for oral health, 56.7 percent were oral health conscious, and as many as 43.2 percent were little or never concerned about it. 2. As to subjective oral health status, 36.7 percent found their own oral health status to be good, and 63.3 percent had a periodontal disease or felt that there was something wrong with their oral health. Regarding self-assessed abnormal oral symptoms, 25.8 percent considered themselves to have an abnormal symptom related to temporomandibular joint, and approximately 30 percent thought there was something wrong with their gums. 3. As for toothbrushing habits, the number of the girls who brushed their teeth after lunch was statistically significantly far larger than that of the boys who did. There were some differences between the boys and girls in toothbrushing method and in which part of the oral cavity they brushed. 4. In regard to oral health knowledge, the girls(a mean of 7.05) significantly excelled the boys(6.36). Those who were more oral health conscious got significantly better scores in oral health knowledge. 5. In terms of dental-clinic visit experiences, the students who had ever visited a dental clinic took in less sugar and got a more frequent regular dental checkup(2.62, 2.50) than the others who hadn't(2.32, 1.74).

• The KIPS Transactions:PartB
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• v.19B no.3
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• pp.201-208
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• 2012

Accurately segmenting lumen border in intravascular ultrasound images (IVUS) is very important to study vascular wall architecture for diagnosis of the cardiovascular diseases. After each of IVUS image is transformed to a polar coordinated image, initial points are detected using wavelet transform. Then, lumen border is initialized as the set of important points using non parametric probability density function and smoothing function by removing outlier initial points occurred by noises and artifacts. Finally, polynomial curve fitting is applied to obtain real lumen border using filtered important points. The evaluation of proposed method was performed with related method and the proposed method produced accurate lumen contour detection when compared to another method in most types of IVUS images.

• Journal of Korean Society for Geospatial Information Science
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• v.13 no.2 s.32
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• pp.65-69
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• 2005

Efficient 3D generation of cultural features, such as buildings in urban area is becoming increasingly important for a number of GIS applications. For reconstruction or 3D building in urban area aerial images, satellite images, LIDAR data have been used mainly. In case of automatically extracting and reconstructing of building height using single aerial images or single satellite images, there are a lot of problems, such as mismatching that result from a geometric distortion of optical images. Therefore, researches or integrating optical images and existing 2D GIS data(e.g. digital map) has been in progress. In this paper, we focused on extracting of building height by means or interest points and vortical line locus for reducing matching points. Also we used digital plotter in order to validate for the results in this study using aerial images(1/5,000) and existing digital map(1/1,000).

• KLA journal
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• v.16 no.4
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• pp.22-23
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• 1975

이 소문은 I.S.O.(국제표준화기구)의 활동 중 도서관관계의 기준 제정의 근황을 알려주는 가장 친절한 설명이다. 특히 T.C46에서 제정한 권고안의 목록과 앞으로 제정될 부분에 대한 명세는 이 분야에 관심을 둔 여러 연구자의 관심을 끌게 하리라 생각된다. 필자는 ISO에 관한 몇 가지 문제에 관심을 기우려 왔다. 그 이유는 이 기관의 역할은 결국에는 세계의 모든 곳에 활동을 집약시키게 될 것이며 그 규제를 받지 않을 수 없게 되리라는 점과 그것이 바로 도서관이 전진하는 필연적 노정의 하나라는 점에서 였다. 이 예상은 결코 그릇된 것이 아니었다. 최근에 ISDS(국제연적간행물데이터 씨스팀)을 요위한 ISSN, ISBDCS등의 중요 규법이 전부 ISO와의 협의 하에 이룩되고 있음은 이를 말하여 주고 있는 사실인 것이다. 원문은 11p.에 달하는 분량인데 이를 간추려 반량으로 발취하여 번역하여 보았다. 따라서 U.S. Participation in I(SO) via ANSI와 Other Relavant ISO Technical Committee라는 표제가 붙은 두 절을 제외한 것이고 기타 명세목록도 제외한 것임을 밝혀 둔다. 원문은 Library Resources & Technical Sevices Fall 1974. 18(4) p.325-335에 실려 있다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2010.07a
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• pp.380-383
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• 2010

본 논문에서는 다시점 카메라를 기반으로 홀로그램 영상을 재생하는 기술을 제안한다. 본 논문에서는 다시점 카메라를 이용해 획득한 발레영상을 사용하여 깊이정보에서 관심객체만을 추출하였다. 추출한 관심객체의 홀로그램 복원화질을 향상시키기 위해 본 논문에서 제안한 함수를 적용하였다. 필터링된 관심객체의 깊이정보와 CGH(Computer-Generated Hologram) 기법을 이용하여 디지털 홀로그램을 생성하였다. 이 디지털 홀로그램을 PC 시뮬레이션을 통해 홀로그램 영상으로 복원한 후 제안한 기법의 적용결과를 주관적인 화질평가를 통해 검증하였다.

• 건강소식
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• v.36 no.12
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• pp.26-27
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• 2012

유방암에 비하면 그리 흔한 편도 아닌데, 성(性)과 관련 있다 보니 자궁경부암에 대한 관심은 매우 큰 편. 더욱이 예방백신이 나와 있는 유일한 암이라 '선택'이란 걸 할 수 있다는 점도 영향을 주는 것 같다. 관심을 가지고 있었지만 자세히 몰랐던 자궁경부암에 관한 궁금증을 풀어보자.

• Venture DIGEST
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• no.2 s.127
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• pp.46-46
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• 2009

경제 위기의 해법으로 '나눔이 회자되곤 한다. 그런만큼 사회적기업에 대한 관심도 높다. 사회적기업은 무엇이며, 사회적기업 인증을 받으려면 어떤 절차를 거쳐야 하며, 사회적기업은 어떤 활동을 펼치고 있는지, 그밖의 궁금한 사항은 무엇인지 등에 관해 몇 회에 걸쳐 짚어보고자 한다. 사회적기업이란 특별한 조건이 따르는 것이 아니라, 조금만 관심을 가지면 누구나 될 수 있다는 점을 잊지 말자.

• KOREAN POULTRY JOURNAL
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• v.4 no.4 s.30
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• pp.54-60
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• 1972

지난 3월 중순 국회의 농림분과 위원회에 소속된 국회 의원들과 농$\cdot$축산학계의 학자들이 모여서 우리나라 농산물과 축산물의 유통문제점 및 전반적인 현황에 대하여 진지한 토의가 있었다. 이것은 아직까지 농림분과위원들조차도 외면하여 왔던 축산물에 대한 관심도의 환기와 장래 국내의 주요 식량자원으로서의 축산물에 대한 행정 당국의 관심을 환기시키는 분기점이 되리라는데 큰 의의가 있다.

• Education of Primary School Mathematics
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• v.26 no.2
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• pp.115-124
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• 2023

This study aimed to investigate elementary school teachers' interest in mathematics textbooks following the new change in the publication system for elementary mathematics textbooks. To achieve this, an online survey platform was used to conduct a survey of elementary school teachers in teaching grade 3-4 across the country, and the responses of 199 participants were analyzed to determine their interest in mathematics textbooks. The research results showed that elementary school teachers had high levels of interest in mathematics textbooks, particularly in informational and personal interest. Moreover, the stages at which teachers showed the highest level of interest were reinforcement interest and operational interest. Analysis of the differences in interest in mathematics textbooks based on personal variables showed significant differences depending on the teacher's experience in mathematics education training, satisfaction with mathematics textbooks, and whether they majored in mathematics education. Based on these findings, it can be inferred that elementary school teachers have a high level of informational interest in the characteristics, strengths, weaknesses, and materials related to authorized and approved mathematics textbooks, and their high level of personal interest in mathematics textbooks can have a positive effect in line with the goal of the new textbook system. Additionally, since many teachers showed a high level of interest in reinforcement interest, it is necessary to devise various ways to support teachers' creative use and reconstruction of mathematics textbooks.