• 한국과학교육학회지
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• 제29권8호
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• pp.934-950
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• 2009

본 연구에서는 학생들의 그림을 이용하여 과학자와 과학 학습자의 활동에 대한 이미지를 분석하고, 과학진로 선택과 어떤 관계가 있는지 살펴보았다. 중학교 1학년 학생 163명을 대상으로 DAST와 DASLT를 실시하였고, 과학 관련 진로에 대한 설문조사를 하였다. 수집한 학생들의 그림을 DAST-C와 DASLT-C를 이용하여 코딩하였고, 그 중 과학 진로를 선택하겠다고 응답한 학생과 그렇지 않은 학생 사이에 유의미한 차이를 보이는 요소를 찾아 이를 그림과 설문 응답 내용을 바탕으로 분석하였다. 분석 결과, 과학에 대한 이미지를 구성하고 있는 다양한 요소 중에서 과학 진로와 보다 밀접한 관련이 있는 요소는 과학자의 '표정', '실험복' 착용 여부, '기이한 모습', '지식 상징', '기술 상징', '연구 인원', '위험성', 'STS'적인 측면인 것으로 나타났다. 과학학습에 대한 이미지를 구성하는 요소 중에서는 과학학습자의 '표정', 수업 시간에 이루어지는 '학습 형태', '탐구 상징'과 '학습 장소'에서 유의미한 차이가 나타났다. 본 연구는 결과에 근거하여 학생들의 과학과 과학 학습에 대한 긍정적 이미지 형성과 과학 관련진로 선택에 교육적 시사점을 제공할 수 있다.

• 한국지구과학회지
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• 제35권5호
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• pp.375-384
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• 2014

The number of students choosing science, technology, engineering, and mathematics (STEM) related careers are declining. Thus it became a worldwide challenge in the $21^{st}$ century. As public images of the engineers are unfavorable and inaccurate, misconceptions and stereotypes about engineers are prevailing. The purpose of this study was to investigate elementary school students' perceived mental and pictorial images of engineers and the nature of engineering work. This study involved 512 fifth and sixth grade students (Boys: 287 and Girls: 225) from four elementary schools at one of metropolitans in South Korea. The Draw An Engineer-Korean version (DAE-K) was developed based on Draw an Engineer (DAE) and Draw a Scientist (DAS), and Song and Kim (1999)'s instruments. A pilot-tested was conducted with 33 elementary students prior to the main study. The students were asked to answer how they think the engineers would be, to draw an engineer at work, and to write the engineer's personal information and the job description. Engineers were perceived as a person fixing, building, manufacturing, working outdoors in labors' clothes such as a robe. Engineers were shown with building tools, robots, airplanes, machines, conveyor belt, etc. Moreover, compared to the scientists, engineers were perceived as less intelligent, less imaginative, and less accurate. The results of this study revealed that elementary school students had a lack of accurate images of engineers. Students' current perceived images of engineers could help educators find the baselines for the future engineering education in elementary schools. In addition, the findings of this study could also contribute to the development of engineering education in terms of gender issues, STEM career choice, and even cultural diversity.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.145-150
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• 2002

Web GIS (Geographic Information Systems) service systems provide the various GIS services of analyzing and displaying the spatial data with friendly user-interface. These services are expanding the business domain and many users want to access the distributed various spatial data. But, it is difficult to access diverse data sources because of different spatial data format and data access methods. In this paper, we design and implement web GIS services based on the inter-operability and GML (Geography Markup Language) of OGC(Open GIS Consortium) in web distributed environment. Inter-operability provides unique accessing method to distributed data sources based on OLE DB technology of Microsoft. In addition, GML support web GIS services based on XML. We design these GIS services as components using UML (Unified Modeling Language) of an object-oriented modeling language for specifying, visualizing, constructing, and documenting the artifacts of software system. In addition, they also were developed in object-oriented computing environment, and it provides the interoperability, language-independent, easy developing environment as well as re-usability.

• 펄프종이기술
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• 제31권3호
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• pp.60-67
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• 1999

The CLSM and the image analysis technique enhanced observation of fiber wall fibrillation occurred in both the outer and the fiber wall surfaces during refining by non-destructive techniques. In the early stages of refining, it was well observed that a partial separation between the S1 and S2 layer in the secondary wall was made generating a space in the wet fiber walls . With further refining, it was clearly shown that the shear forces imparted by the refiner bar surfaces caused the S1 layer to become totally separated from the S2 layer as well as creating microfibrils. Furthermore, the fibrillation in the inner fiber wall surfaces could be due to the normal force (Fn) by refiner bars, friction force between a fiber and refiner bars (Fs) and inner friction force between fiber walls(fs). It was confirmed that the concept of fibrillation should be extended to fibrillation in the inner fiber wall surfaces as well as internal and external fribrillation.

• 한국초등과학교육학회지:초등과학교육
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• 제20권2호
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• pp.229-237
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• 2001

The purpose of this study was to gain a suggestion how to educate pre-service elementary teachers in science education. One hundred and twenty three students were involved in the questionnaire to investigate the perception of science. Many of pre-service elementary teachers had a negative image of science. They consider science to be stiff, inflexible and dull. They suggested much more of foreign scientists than Korean ones as respectable scientists. They are very interested in science related to society, and themselves. It is necessary for elementary pre-service teachers to be educated to positively improve the images of science and scientist, and to understand modern scientific philosophical perspectives. And, Korean scientific history education should be educated formally or informally for them to count on about Korean scientists as respectable ones in science education.

• 한국과학교육학회지
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• 제21권2호
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• pp.316-327
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• 2001

과학기술 및 과학기술자를 소재로 TV에서 방영된 드라마 카이스트'를 비정규 과학학습의 관점에서 평가하기 위해 드라마 '카이스트'가 학생들에게 미친 영향과 이에 대한 교사들의 평가를 조사하였다. 드라마 '카이스트'는 컴퓨터, 로봇축구, 우리별과 같은 소재를 이용하여 과학기술과 과학기술자들의 생활을 묘사함으로써 학생들에게 많은 관심을 불러일으켰으며, 과학기술자에 대해 학생들이 평소에 생각하던 것과 다른 이미지를 제시했고, 특히 과학기술자 과학기술 전반, 과학기술의 사회성에 대한 태도를 긍정적으로 변화시켜 비정규 과학학습의 소재로서 대체로 긍정적인 역할을 하였다. 교사들은 드라마 '카이스트'가 과학에 대한 흥미와 관심을 유발하였지만, 비현실적인 내용을 다루거나 과학자의 천재성을 부각하는 것은 잠재적으로 부정적인 효과를 가져올 수 있으므로 흥미위주에서 탈피하여 실패와 좌절을 겪는 평범한 과학자의 모습을 제시해야 할 필요가 있다고 평가하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.423-427
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• 2002

Contrary to the traditional text-based information, 4S(GIS,GNSS,SIIS,ITS) information can contribute to the citizen's welfare in upcoming era. Recently, GSIS(Geo-Spatial Information System) has been applied and stressed out in various fields. As analyzed the data from GSIS arena, the position information of objects and targets is crucial and critical. Therefore, several methods of getting and knowing position are proposed and developed. From this perspective, Position collection and processing are the heart of 4S technology. We develop 4S-Van that enables real-time acquisition of position and attribute information and accurate image data in remote site. In this study, the configuration of 4S-Van equipped with GPS, INS, CCD and eye-safe laser scanner is shown and the merits of DGPS/INS integration approach for geo-referencing is briefly discussed. The algorithm of DGPS/INS integration fur determination of six parameters of motion is eccential in the 4S-Van to avoid or simplify the complicated computation such as photogrammetric triangulation. 4S-Van has the application of Laser-Mobile Mapping System for three-dimensional data acquisition that merges the texture information from CCD camera. The technique is also applied in the fields of virtual reality, car navigation, computer games, planning and management, city transportation, mobile communication, etc.

• 과학기술학연구
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• 제6권1호
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• pp.89-118
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• 2006

우리의 과학자 사회는 식민지, 해방, 전쟁으로 이어지는 현대사의 과정을 통해 숱한 긴장과 갈등의 굴곡을 거쳤고, 특히 한국전쟁(6.25) 시기에 집중적으로 일어난 과학기술자들의 월북과 월남 사태는 우리 과학자 사회 형성에 심대한 영향을 주었다. 8.15에서 한국전쟁에 이르는 시기에 이념이 우리 과학자 사회의 형성 과정에서 어떤 역할을 했는지에 대해서는 다양한 관점에서의 해석이 요구된다. 그것은 한편으로는 지금까지 우리 과학자 사회의 발생기에서 이념적 요소가 간과되거나 지나치게 과소평가 되어온 맥락에서 기인한다. 또한 전쟁은 과학에 대한 인식이 형성되는 중요한 계기였다. 우리 민족은 평화적인 과학기술보다 신무기와 군사기술을 통해 처음으로 첨단 과학을 접하는 독특한 과학체험을 하게 되었다. 이러한 역사적 경험은 우리 민족 전체에게 이른바 집단 상흔으로 각인되어 이후 과학의 이미지 형성에 다대한 영향을 미쳤다. 이 글에서는 해방 이후 과학자 사회의 형성과정에서 전쟁이 가져온 단절 과정을 살펴보고자 한다. 분석의 초점은 지금까지 소극적인 형태로만 해석되었던 과학자 사회형성 과정에서의 이념의 문제를 보다 적극적으로 해석하면서 이념 대립을 소모적인 과정이나 혼란상으로서가 아니라 신생 한국에서 새롭게 형성되던 과학의 다양성으로 보면서 해방 이후의 역동적인 과정 속에서 새로운 과학을 수립하려는 적극적 노력으로 살피고자 한다. 이것은 해방을 통해 분출한 건국의 역동적인 과정 속에서 과학기술자들이 그 일익을 적극적으로 담당했을 뿐 아니라 식민지 시대와는 다른 과학을 수립하기 위해 노력했다는 것을 인정하고 그것을 재구성하려는 시도이다. 따라서 국립서울대안(국대안) 반대운동과 월북 등도 진보적 과학기술자들이 새로운 과학을 수립하려는 노력의 일환으로 이해된다.

• 한국의류학회지
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• 제16권3호
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• pp.209-221
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• 1992

A standpoint art's style, present-day Western dress was establishing a systematic, theoritical value in sphere of fine art's meaning & it's expression on the modern fashion. For this reason, I selected Impressionism (a broad senes: be included Impressionism, Neo-Impressionism, Post-Impressionism) that was designated 'the revolution of color'. In the previous paper, 1 already discussed about the modern fashion under the influence of the color of Impressionism, from this study, Neo-Impressionism's techniques & it's influence on the modern fashion was investigated. The Impressionists had purposely used uneven brushwork & a vivid palette to transmit the intensity & immediacy of nature, whereas the Neo-Impressionists utilized methodically applied dots, a technique commonly described as Pointillism, to achieve their rationalist goal of eliminating the fugitive & the casual in order to seize a more fundamental reality. Of all them, Seurat had already become interested in the posible analogies between science, music & psychology on the on hand & art on the other, and scientist's books & articles offered a wealth of theoretical support. 1'articulary, it was corroborated that effects of sadness, calm, or happiness could be achieved through manipulation of color & design. The conclusions are as follow: 1. Through the modern fashion, a space between pattern & pattern was reflected unstable balances & harmonies, that, Neo-Impressionist emphasized the distinction between outdoor & subject, between elaborately clothed & nude figures, corresponded to modern fashion's pattern. 2. The modern fashion was presented a small border or band within the pattern itself which colors complemented those of the adjacent pictorial surface and mediated between the painted image & its enclosure.

• 핵의학기술
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• 제13권1호
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• pp.63-66
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• 2009

Purpose: ACR (American College of Radiology) offers variable parameters to PET/CT quality control by using ACR Phantom. ACR Phantom was made to evaluate parameters which are uniformity, attenuation, scatter, contrast and resolution. Manual analysis method wasn't good for the use of QC because values of parameter were changed as it may user and it takes long time to analysis. Ki-Chun Lim, a nuclear scientist in AMC, developed program that automatically analysis values of parameter by using ACR Phantom to overcome above problems. In this study, we evaluated automatic analysis program's usability, through the comparing SUV of each method, reproducibility of SUV when repeated analysis and the time required. Materials and Methods: Using Flangeless Esser PET Phantom, the ideal ratio of 4 : 1 hot cylinder and BKG but it actually showed a ratio of 3.89 to 1 hot cylinder and BKG. SIEMENS Biograph True Point 40 was used in this study. We obtained images using ACR phantom at Fusion WB PET Scan condition (2 min/bed) and 120 kV, 100 mAs CT condition. Using True X method, 3 iterations, 14 subsets, Gaussian filter, FWHM 4 mm and Zoom Factor 1.0, $168{\times}168$ image size. We obtained Max. & Min. SUV and SUV Mean values at Cylinder (8, 12, 16, 25 mm, Air, Bone, Water, BKG) by automatic program and obtained SUV by manual method. After that, we compared manual and automatic method. we estimate the time required from opened the image data to final work sheet was completed. Results: Automatic program always showed same result and same the time required. At 8, 12, 16 and 25 m cylinder, manual method showed 6.69, 3.46, 2.59, 1.24 CV values. The larger cylinder size became, the smaller CV became. In manual method, bone, air, water's CV were over 9.9 except BKG (2.32). Obtained CV of Mean SUV showed BKG was low (0.85) and bone was high (7.52). The time required was 45 second, 882 second respectably. Conclusions: As a result of difference automatic method and manual method, automatic method showed always same result, manual method showed that the smaller hot cylinders became, the lager CV became. Hot cylinders mean region size, the smaller hot cylinder size becomes we had some trouble in doing ROI poison setting. And it means increase in variation of SUV. The Study showed the time required of automatic method was shorten then manual method.