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      • KCI등재후보

        지역문제 해결을 위한 국내 리빙랩 사례 분석

        성지은(Seong, Ji Eun),한규영(Han, Kyu Young),정서화(Jeong, Seo Hwa) 한국과학기술학회 2016 과학기술학연구 Vol.16 No.2

        최근 국내에서도 사회 주체(주민, 사용자 등) 주도형 혁신모델이자 지역·현장기반형 혁신의 장으로서 리빙랩이 도입·적용되고 있다. 본 연구는 지역사회문제 해결을 위한 실험으로 ‘리빙랩’을 명시하고 추진된 북촌 리빙랩, 성대골 리빙랩, 건너유 프로젝트 3개 사례를 분석하였다. 각 사례의 지역문제, 문제해결 목표, 참여주체 및 주체별 역할, 리빙랩 추진체계, 의의를 분석하고 리빙랩의 유형·특성을 도출했으며, 향후 발전 방안을 모색하였다. 분석 결과 각 사례는 기술 활용 방식과 사용되는 기술의 특성은 차이가 있으나 과학기술·ICT와 지역문제 해결을 연계하고자 했으며 지역주민이 문제 발굴부터 기술 실험 및 확산·적용까지 리빙랩 전반에서 주도적인 역할을 수행하였다. 또한 공통적으로 중간지원조직의 역할이 리빙랩 운영에 중요한 요인으로 작용하였다. 각 사례는 서로 다른 리빙랩 유형을 보이고 있는데, 북촌 IoT 리빙랩은 정부/지자체가 리빙랩 활동기반 조성 또는 행위자 활동을 지원하고 프로젝트 형태로 운영된 반면, 성대골 에너지전환 리빙랩과 건너유 프로젝트는 시민사회 스스로 지역문제를 해결하기 위해 문제를 정의하고 기술을 탐색하는 형태로 진행되었다. Living Lab is being introduced and applied as an innovation model driven by social entities (residents, users, etc.) and as an innovation place based on local and field. This study analyzed three living lab cases of Bukchon IoT living lab, Seong-Daegol energy transition living lab, and Daejeon Geonneoyu project, which were designated as "Living Lab" to solve local problems. We analyzed the local problem, the problem solving goal, the role of each participant and the subject, the living lab promotion system, the significance in each case. In addition, the types and characteristics of living labs were elucidated and future development plans were discussed. The result is as follow. First, each case has a tendency to link science technology and ICT with local problem solving though there is a difference between the technologies used. Second, local residents played a leading role in the whole living lab process from problem identification to technical experimentation, diffusion and application. Third, the role of the intermediaries commonly played an important role in the operation of the living lab. Last but not least, each case has different types of living lab. Bukchon IoT living lab being operated as a project by the government / municipality to create a living lab activity-base or to support actors’ activities. On the other hand, the Seong-Daegol energy transition living lab and Daejeon Geonneoyu project were conducted by the civil society itself to define problems and explore technologies in order to solve local problems.

      • 연령에 따른 개구리 피부의 형태학적 연구(Xenopus laevis)

        한성수,고정식 순천향대학교 1983 논문집 Vol.6 No.4

        Age differences in the skin structure have been studied in young (one year-old) and aged (five and a half years-old) frog, Xenopus laevis. Pieces of the skin were taken from the central area of the back and abdomen, fixed in Karnovsky's fixative (phosphate buffer, pH 7.3) and post-fixed in 1% osmium tetroxide (phosphat buffer, pH 7.3). The sections 1㎛ in thickness were made on a LKB-III ultramicrotome, and were stained with toluidine blue. In order to assess the general level of metabolic activities in epidermal cells, pieces of the skin from the frogs of the two age groups were incubated in amphibian physiological saline containing 50μCi/ml of 5-³H-uridine with a specific activity of 25.9 Ci/m mole (New England Nuclear). The labeling was carried out for 30minutes at 20。±1℃. Sections 1㎛ in thickness were cut on a LKB-III ultramicrotome and mounted on glass slides. The mounted slides were coated with Kodak NTB-3 unclear track emulsion in routine manner, exposed for a period of 1 or 2 weeks, and developed with Kodak D-19. The tissues were studied with light microscope. Observed results were as follow; 1. The epidermis in young frogs is made up of an average of 6.3 and 4.7 layers of epithelial cells at abdominal and back skin, respectively. 2. In aged frog, the number of epithelial cell layers at abdominal and dorsal surfaces increases to 8.8 and 5.6. 3. The thickness of the dermis(spongiosum) in aged frogs is decreased 25% on the abdominal side (from 267㎛ to 207㎛), but is increased by 11% on the dorsal side (from 275㎛ to 305㎛). 4. The nucleolar index and radioactive index, by epithelial cells are drastically reduced in aged frogs.

      • KCI등재
      • 토양 미생물인 Streptomyces tubercidicus에서 분리한 GTPcyclohydrolase Ⅰ 저해제

        한지만,김시욱,이인화,박열,정혜광,윤성명,유진철 조선대학교 약학연구소 1998 藥學硏究誌 Vol.19 No.1

        GTP cyclohydrolase I (EC 3.5.4.16) catalyzes the conversion of GTP to D-erythro-7,8-dihydroneopterin triphosphates and formic acid. and thus performs the first committing step in the biosynthesis of the pteridine moiety of folk acid in microorganisms and of tetrahydrobiopterin in higher animals. GTP cyclohydrolase I isolated from Streptomyces tubercidicus was inhibited by DL-6-methyl-5,6,7,8-tetrahydropterin and xanthopterin, and was not inhibited by tetrahydrofolic acid, pterin, pterin-6-carboxylic acid, biopterin, neopterin, ribofravin. These results suggest that bacterial GTP cyclohydrolase I may be regulated by its metaboilic end product.

      • 착색사출성형품에서 안료 및 성형조건이 수축에 미치는 영향

        정영득,한성렬 釜慶大學校 1999 釜慶大學校 論文集 Vol.4 No.1

        The pigments used for coloring of plastic parts influence considerably on the parts quality such as precision, appearance and strength. In this research, we explored the effects of injection molding condition and pigment's material properties on the shrinkage in the injection molded PP(polypropylene) parts. Injection molding experiments were conducted to collect data that were used to relations between parts qualities and injection condition such as melt temperature, injection pressure and holding pressure with various pigment. The results for injection conditions show that shrinkage was increased according to increasing melt temperature and decreased according to increasing injection pressure and holding pressure. And the results for pigments show that shrinkage in case of adding organic pigments was shown larger that inorganic pigments and red among all pigments were shown largest shrinkage in all case.

      • 급ㆍ배기구 위치변화에 따른 실내의 기류변화에 관한 연구

        한용수,정성욱,박흥재 인제대학교기초과학연구소 1999 자연과학 Vol.3 No.-

        본 연구의 목적은 실내 대기질의 조절과 관리에 필요한 환기 시스템을 디자인하는데 사용되는 실험 데이터의 산출에 있다. 단순화된 모형실에서의 급기와 배기구의 위치에 따른 기류변화의 분포가 구해진다. This research has a purpose to achieve experiment data used for design of ventilation systems necessary for Indoor Air quality control and management. Distribution of flow pattern according to supply and exhaust outlets in a simplified model chamber was evaluated.

      • 90년대 교단학문작품에 나타난 교사성 분석

        정한성,정회욱 木浦大學校 敎育硏究所 2002 교육연구 Vol.15 No.-

        이 연구의 목적은 90년대 교단문학에 나타난 긍정적인 교사상과 부정적인 교사상을 알아보기 위한 것이다. 교단 문단작품에 나타난 교사상을 분석하기 위하여 1990년에서 2000년 사이의 시, 소설, 수필집, 교단문집 등의 장르에 나타난 교사상을 수집하였다. 분석결과 교단문학에 나타난 긍정적인 교사는 학습기술이 뛰어나고, 학생들의 입장을 이해하고, 특기적성을 신장시켜주고, 사랑과 봉사정신을 가지고 있고, 학생들에게 공정한 대우를 해주고, 유모가 뛰어나고, 젊고 발랄하고, 친절하고 따뜻하고, 부지런히 연구하는 행동적 특성을 보여주는 교사였다. 아울러 부정적인 교사상은 다음과 같았다. 체벌하는 교사, 촌지에 의미를 부여하는 교사, 학생을 이해하지 못하고 편애하거나 편견을 갖는 교사, 모범을 보이지 않는 교사, 정의감이 없는 교사, 학생을 믿지 않는 교사 등이다. The purpose of this study is to know about behavioral characteristic of good and bad teachers described in 'Teacher Literature' in the 1990s. To achieve this purpose, the researchers collected data from poems, novels, essays, magazines. The results of the study are that good teachers have the behavioral characteristics as followings : skillful in teaching, seek to understand students, seek to find and develop students' talents, treat students fairly, good sense of humor, cheerful, friendly and warm-hearted, scholastic etc. And bad teachers have the behavioral characteristics as followings : punish students physically, harsh and cold to students, discriminate students, injustice to students, mistrustful etc.

      • KCI등재

        3차원 전산화단층촬영 영상을 이용한 안면 연조직 두께 계측의 임상적 유용성

        정호걸,김기덕,한승호,허경석,이제범,박혁,최성호,김종관,박창서 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.2

        Purpose : To evaluate clinical usefulness of facial soft tissue thickness measurement using 3D computed tomographic images. Materials and Methods : One cadaver that had sound facial soft tissues was chosen for the study. The cadaver was scanned with a Helical CT under following scanning protocols about slice thickness and table speed; 3 mm and 3 mm/sec, 5 mm and 5 mm/sec, 7 mm and 7 mm/sec. The acquired data were reconstructed 1.5, 2.5, 3.5 mm reconstruction interval respectively and the images were transferred to a personal computer. Using a program developed to measure facial soft tissue thickness in 3D image, the facial soft tissue thickness was measured. After the ten-time repeation of the measurement for ten times, repeated measure analysis of variance (ANOVA) was adopted to compare and analyze the measurements using the three scanning protocols. Comparison according to the areas was analyzed by Mann-Whitney test. Results : There were no statistically significant intraobserver differences in the measurements of the facial soft tissue thickness using the three scanning protocols (p>0.05). There were no statistically significant differences between measurements in the 3 mm slice thickness and those in the 5 mm, 7 mm slice thickness (p>0.05). There were statistical differences in the 14 of the total 30 measured points in the 5 mm slice thickness and 22 in the 7mm slice thickness. Conclusion : The facial soft tissue thickness measurement using 3D images of 7 mm slice thickness is acceptable clinically, but those of 5 mm slice thickness is recommended for the more accurate measurement.

      • KCI등재

        혼합 치열기 어린이의 치은 섬유종증

        한효정,최병재,김진,김성오,손홍규 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.4

        치은 섬유종증은 유리 치은과 부착 치은이 점진적으로 증식되는 비염증성 질환이다. 대부분 가족력이 있으며 영구치 맹출과 함께 발병하지만 유치 맹출 시기에, 드물게 출생 시부터 나타나기도 한다. 본 6세 여아의 경우 태어날 때부터 치은의 일부가 증식되어 있었고 가족력 및 치은 증식을 유발하는 약물을 복용한 병력은 없었다. 구강 내 검진 시 섬유성 치은 증식이 관찰되어 절제 생검을 시행하였고 그 결과 치은 섬유종증으로 진단하였다. 치은 섬유종증의 치료는 치은 절제술과 철저한 구강 위생의 관리이다. 그러나 치료 후 재발성 때문에 치료 시기에 대해서는 논란 중이다. 일반적으로 영구치가 모두 맹출 한 이후에 치료할 것을 추천하지만 조기 치료는 구강의 기능 및 환아의 심미적, 심리적인 문제점을 개선시켜 주는 장점이 있다. Gingival fibromatosis is a non-inflammatory oral disease, characterized by slowly progress enlargement of the free and attached gingiva. Gingival fibromatosis may have familial tendency. Gingival enlargement usually begins with the eruption of the permanent dentition but can also develop with the eruption of the primary dentition. In this case, a 6-year-old female had gingival enlargement at birth. There was no familial, medical and pharmacologic history of gingival overgrowth. Treatment is gingivectomy with a rigorous program of oral hygiene. Recurrence of gingival fibromatosis may well be inevitable. Therefore there is no general aggrement as to the timing of surgical intervention. Generally the best time is when all the permanent teeth have erupted. However early intervention can improve oral function and esthetic and psychologic effect.

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