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      • KCI등재

        삼부이론을 적용한 창의적 사고 배양 수업안의 개발 : 지구과학 분야를 중심으로 Especially for High School Earth Science Education

        최임조,임영구,강용희,유계화 慶北大學校 科學敎育硏究所 2003 科學敎育硏究誌 Vol.27 No.-

        The enrichment triad model(Renzulli, 1977) which was originally developed for teaching and learning of gifted and talented children consists of three types of enrichment activities. Type Ⅰ enrichment activities build knowledge for later use in 'gifted behaviors', and type Ⅱ enrichment activities focus on the 'how-to skills,' attitudes and values the student must develop to become and effective investigator, problem solver and producer. Type Ⅲ enrichment activities, the pursuit of real problems and realization of gifted behavior, are the fundamental goal for this model. In this study we developed enrichment activities for high school earth science class. We could summarize enrichment activities as follows: In studying the fossil section, after reporting their research activities on fossil data, students can understand the fossil theory through questioning and answering their homeworks. They can enhance their interest and curiosity by watching the movie 'Jurassic Part'(type Ⅰ enrichment activities). After making replica of fossil samples(type Ⅱ), they can write their research reports or articles concerning fossils(type Ⅲ). Students can extend their knowledge about fossils through these types of enrichment activities. In studying weather map section, after collecting newspaper clippings or searching internet, students present their knowledge about weather and weather maps(type Ⅰ enrichment activities). Learning how to make weather maps and investigating how to analyze them, student can extend their knowledge(type Ⅱ). Through these activities, students can apply their knowledge to everyday life experience(type Ⅲ). The third program is 'igneous rock' section. Students investigate the fossil formation in Korea(type Ⅰ enrichment activities). They can understand the principle of volcanic activities through experiment of volcano eruption model type Ⅱ. Through drawing pictures, writing assignment of experiment activities and playing the role play of igneous rocks, teachers can help students to acquire cause or interest to study the igneous rocks(type Ⅲ). In conclusion, within a classroom instruction teachers would be utilizing all three types of activities, moving from one to the other as class, and individual needs, demand. By selecting what students want to do and making them to produce results of their activities, we are expecting that teachers can cultivate creative thinking and enhance problem solving ability of students.

      • 초등사회과 경제 영역의 기본 개념별 수행평가 방법에 관한 연구

        김용조,임순환 광주교육대학교 초등교육연구소 2000 初等敎育硏究 Vol.15 No.1

        This paper focused on the application at actual teaching field in the way of performance assessment that lately entered the stage as an alternative plan traditional way of evaluation at the 5th grade social studies economic area in elementary school. This paper presented the ground of an argument of performance assessment introduction based on a developmental evaluation view, cognitive psychology and multi-intelligence theory. Constantly to be feed back the goal of social studies economic education, guidance content, evaluation, we established the goal of social studies economic education and analyzed the content of economic education by ten pieces of basic concept in the 5th grade social studies elementary school. On the basic of these, we reconstructed by 8 pieces of basic concept against being guide at the 5th social studies curriculum now in use. One hand for the development of performance assessment of economic area, this paper utilized the existing techniques of performance assessment and made a criterion plan of the performance assessment . on the basic of this. We projected the way of performance assessment by basic concept. The result is as follows First, The production of a criterion plan of performance assessment can be a suitable tool of performance assessment. Second, if we used compound numbers technique of performance assessment, the result of evaluation would bring along the synergy effect. Third, we extracted the economic basic concept against being guided to the 5th grade in the elementary school. For further more studies, this paper suggests that the test way of performance assessment must be exploited as possible as early to know how much contribute to make progress higher order thinking like originality and problem solving capacity to information-oriented society and knowledge foundation society in the coming up.

      • KCI등재후보

        플륨 모니터링에 의한 SM45C 레이저 용접특성 평가

        유영태,김재열,노경보,양동조,오용석,임기건,김지환 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.6

        With the increased use of lasers in industrial welding applications, techniques for monitoring and controlling these processes become increasingly important. It is very important that we understand the dynamic behaviors of the laser induced plume in welding because the laser induced plume has considerable effects on welding efficiency and the quality of materials. As the plume fluctuation was associated with keyhole instability, unstable vapor plume indicated the process was unstable and would result in poor welds. An Infrared Themal-vision Camera can be utilized compensate for incurracies encountered in real-time monitoring during laser welding. We have results that instabilities of plume are closely dated with hot cracking and defect of laser welding.

      • KOMPSAT-1 EOC 입체 영상을 이용한 DEM 생성과 정확도 검증

        임용조 ( Yong Jo Im ),김태정 ( Tae Jung Kim ),김준식 ( Jun Sik Kim ) 大韓遠隔探査學會 2002 大韓遠隔探査學會誌 Vol.18 No.2

        본 논문에서는 대전과 논산지역의 KOMPSAT-1 EOC입체 영상으로부터 DEM을 생성하고 정확도를 검증하였다. DEM생성 과정을 크게 카메라 모델링 단계와 영상 정합 단계로 구분하여 논의하였으며 카메라 모델링 기법은 Orun과 Natarajan이 제안한 모델(1994)과 Gupta와 Harteley(1997)가 제안한DLT모델을 사용하였으며 두 모델링 기법을 EOC입체 영상에 적용하는 것이 가능한지 확인하였다. 영상정합 단계에서는SPOT용으로 개발된 알고리즘이 EOC입체 영상에 적용될 수 있는지를 검토하였다. 그리고 각 단계마다 EOC영상에 적용했을 때의 결과를 SPOT영상을 적용했을 때의 결과와 비교하였다. 본 실험에서 KOMPSAT-1 EOC입체 영상에 대해 카메라 모델링 기법과 영상 정합을 수행하여 DEM을 생성한 결과 SPOT입체 영상에서 생성한 DEM 보다 성능이 우수한 DEM을 얻을 수 있었다. We carried out accuracy assessment for DEM extraction from the KOMPSAT-1 EOC stereo images over Daejeon and Nonsan in Korea. DEM generation divided into two parts. One is camera modeling and the other stereo matching. We used Orun & Natarajan`s(1994) model and Gupta & Hartley`s(1997) model in the camera modeling step and checked the possibility using Orun & Natarajan`s and Gupta & Hartley`s models in EOC stereo pairs. For stereo matching, we used an algorithms developed in-house for SPOT images and showed that this algorithm could work with EOC images. Using these algorithms, DEMs were successfully generated from EOC images. The comparison of DEM from EOC Images with a DEM from SPOT Images showed that EOC could be used for high-accuracy DEM generation.

      • 농촌인구에서의 대사증후군의 특징과 비만 관련 인자와의 연관성

        임수 ( Im Su ),권경훈 ( Kwon Gyeong Hun ),김은주 ( Kim Eun Ju ),임덕상 ( Im Deog Sang ),임효진 ( Im Hyo Jin ),조성일 ( Jo Seong Il ),이윤용 ( Lee Yun Yong ),박경수 ( Park Gyeong Su ),이홍규 ( Lee Hong Gyu ) 한국지질동맥경화학회(구 한국지질학회) 2002 韓國脂質學會誌 Vol.12 No.4

        Objective: Metabolic syndrome is a loosely defined state characterized by insulin resistance, which includes phenotypes of glucose intolerance, abdominal obesity, dyslipidemia and hypertension. However, there is no internationally agreed definition for th

      • KCI등재

        SPOT, EOC, IKONOS 스테레오 영상으로부터 생성된 도심지역 DEM의 정확도 및 성능 비교분석

        임용조 ( Yong Jo Im ),김태정 ( Tae Jung Kim ) 大韓遠隔探査學會 2002 大韓遠隔探査學會誌 Vol.18 No.4

        본 연구에서는 한국과학기술원 인공위성연구센터에서 개발한 DEM생성 알고리즘을 다양한 해상도의 위성영상에 적용하여 도심지역의 DEM생성결과를 살펴보고자 한다. 실험에 사용한 위성영상은 10m해상도의 SPOT영상과, 6.6m해상도를 가지는 EOC영상, 1m해상도를 가지는 IKONOS위성영상이며 모든 위성영상에는 대전광역시의 도심지역이 포함되어 있다. 모든 위성영상에 대해 궤도정보 없이도 카메라 모텔이 수립되는 Gupta와 Harteley(1997)가 제안한 DLT모델을 사용하였다. EOC DEM과 SPOT DEM정확도 검증은 USGS DTED를 사용하였으며, IKONOS DEM의 정확도는 DGPS측량을 수행한 23개의 검증점(check points)를 사용하여 정확도를 비교하였다. 그 결과 SPOT 위성영상으로부터 얻은 DEM은 약 38m RMS오차를 갖고 EOC DEM은 약 12m RMS오차를 보였다. 이 수치는 위성영상의 해상도를 고려하면 약 2~4픽셀에 해당하는 오차이다. IKONOS DEM의 정확도는 약 6.5m RMS오차를 보였으며 해상도를 고려하면 약 6~7픽셀의 오차를 가지고 있다. 이는 SPOT DEM과 EOC DEM보다 다소 높은 수치나 IKONOS DEM은 SPOT, EOC DEM과 달리 도심지역의 건물을 육안으로 구분할 수 있을 정도의 DEM을 생성하고 있다. 그러나 높이 불연속과 건물의 그림자 등에 의해 오정합이 발생하고 있어 향후 높이 불연속과 그림자의 영향을 최소화 하는 알고리즘 개발이 필요하다. In this study we applied a DEM generation algorithm developed in-house to satellite images at various resolution and discussed the results. We tested SPOT images at 10m resolution, EOC images at 6.6m and IKONOS images at 1m resolution. These images include the same urban area in Daejeon city. For camera model, we used Gupta & Hartley`s(l997) DLT model for all three image sets. We carried out accuracy assessment using USGS DTED for SPOT and EOC and 23 check points for IKONOS. The assessment showed that SPOT DEM had about 38m RMS error, EOC DEM 12m RMS error and IKONOS DEM 6.5m RMS error. In terms of image resolution, SPOT and EOC DEM error corresponds to 2~4 pixels where as IKONOS DEM error 6~7 pixels. IKONOS DEM contains more errors in pixels. However, in IKONOS DEM, individual buildings, apartments and major roads are identifiable. All three DEMs contained errors due to height discontinuity, occlusion and shadow. These experiments show that our algorithm can generate urban DEM from 1m resolution and that, however, we need to improve the algorithm to minimize effects of occlusion and building shadows on DEMs.

      • KCI등재
      • KCI등재SCOPUS
      • KCI등재

        Ni-P Coated Sn Powders as Anode for Lithium Secondary Batteries

        Jo, Yong-Nam,Im, Dong-Min,Kim, Jae-Jung,Oh, Seung-M. The Korean Electrochemical Society 2007 한국전기화학회지 Vol.10 No.2

        Nano-sized Sn particles were coated with Ni-P layer using an electroless deposition method and their anodic performance was tested for lithium secondary batteries. Uniform coating layers were obtained, of which the thickness was controlled by varying the $Ni^{2+}$ concentration in the plating bath. It was found that the Ni-P layer plays two important roles in improving the anodic performance of Sn powder electrode. First, it prevents the inter-particle aggregation between Sn particles during the charge/discharge process. Second, it provides an electrical conduction pathway to the Sn particles, which allows an electrode fabrication without an addition of conductive carbon. A pseudo-optimized sample showed a good cyclability and high capacity ($>400mAh\;g^{-1}$) even without conductive carbon loading.

      • Leptomeningeal seeding in patients with brain metastases treated by gamma knife radiosurgery.

        Jo, Kyung-Il,Lim, Do-Hoon,Kim, Sung-Tae,Im, Yong-Seok,Kong, Doo Sik,Seol, Ho Jun,Nam, Do-Hyun,Lee, Jung-Il M. Nijhoff ; Kluwer Academic Publishers 2012 Journal of neuro-oncology Vol.109 No.2

        <P>To characterize the development of leptomeningeal seeding (LMS) in patients with brain metastases after gamma knife radiosurgery (GKRS). Eight hundred and twenty-seven patients that underwent GKRS as a part of an initial treatment plan for brain metastases between January 2002 and December 2010 were included in the study. Six hundred and fifty patients were treated with GKRS alone and 177 patients received GKRS combined with upfront whole brain radiation therapy (WBRT). Actuarial curves for overall survival (OS) and the development of LMS were plotted using the Kaplan-Meier method. Median overall survival for all patients was 55 weeks (95 % CI, 47.8-62.2), and the overall incidence of LMS was 5.3 %. The actuarial rates for LMS at 6 and 12 months were 3.1 and 5.8, respectively. Uni- and multivariate analysis suggested that breast cancer and a large number of metastases (n 4) are significant risk factors of LMS (P < 0.05). Regarding treatment modalities, the addition of WBRT was found to have a significant impact on lowering the risk of LMS by multivariate analysis (P = 0.045). LMS is an important pattern of CNS failure. The risk of LMS following GKRS may be associated with multiple lesions, breast cancer, and the omission of WBRT. Additional data from large-scale, randomized controlled trials are required to identify risk factors associated with the LMS more accurately.</P>

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