• Korean Journal of Ecology and Environment
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• v.36 no.1 s.102
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• pp.29-37
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• 2003

Benthic macro-invertebrates were seasonally collected in the Onchen Stream in Pusan, from July 2001 to March 2002. Generally 4 phylum 5 class 10 order 19 family 23 species were observed in the study sites. Ephemeroptera, Plecoptera and various species appeared in headwater stream while Oligochaeta and Chironomidae were dominated in downstream sites. Community abundance patterns, especially the dominant taxa, Oligochaeta and Chironomidae, appeared to be different depending upon the sampling months. Oligochaeta was usually observed in July, December and March while Chironomidae was appeared in September. The biological indices, TBI(Trent Biotic Index), BS (Biotic Score), BMWP (Biological Monitoring Working Party)were calculated with the appeared communities of the sampling sites through the survey months. TBI showed 1 to 8, BMWP was 1 to 93 and CBI appeared 9 to 387 in the different sites. The biological indices decreased from headstream to downstream sites, We implemented the unsupervised Kohonen network for patterning of community abundance of the sampling sites. The patterning map by the Kohonen network was well represented community abundance of the sampling sites. Also, we conducted RTRN (Real Time Recurrent Neural Network) for predicting of the biological indices in the different sites. The results appeared that the predicting values by RTRN were well matched field data (correlation coefficient of TBI, BMWP and CBI were 0.957, 0.979 and 0.967, respectively).

• The Journal of Asian Finance, Economics and Business
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• v.7 no.7
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• pp.105-112
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• 2020

The study investigates and measures the impact of capital structure, profitability and financial performance on the success of the business organization. Capital structure of the business organization refers to the proportion of external funds and internal funds, i.e., debt and equity. In Saudi Arabia, petrochemicals companies are working on equity, but financial performance reflects negative trend for the period 2004 to 2016. The research is based upon secondary data available on the websites of petrochemicals companies of Saudi Arabia. Financial Ratio variability analysis and Trend Indices of financial ratios (TI_CBI) measure and compare the financial variability and sensitivity of financial ratios of the business organization. Correlation between Trend Indices (TI_CBI) of independent variable and dependent variables are to be calculated to know the impact of changes in debt equity on other dependent variables. The results reveal the unexpected performance of petrochemicals companies due to under-utilization of the resources caused by low demand and lower prices of the products governed by some internal and external factors. The study finds that size, demand, cost of production, profitable streams of products, and low cost capital in external funds are the factors responsible for overall growth development of the petrochemicals industry of Saudi Arabia.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.1069-1072
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• 2009

Field sequential display has some advantages but color breakup (CBU) is the significant problem. Many researches had introduced several methods to reduce CBU phenomenon, however there are no reliable methods to measure the degree of CBU. In this report, a novel CBU measurement technique which was based on the image processing method and subjective analysis results had proposed to evaluate the degree of CBU. Color Breakup Index (CBI) was presented to be a useful index to recognize the CBU phenomenon in the different field sequential technique displays.

• Korean Journal of Childcare and Education
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• v.9 no.5
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• pp.181-200
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• 2013

This study aimed at exploring how an instructor constructs meanings through content-based instruction (CBI) offered to pre-service teachers majoring in early childhood education. The course, early childhood mathematics education, was conducted during the spring semester in 2011. This study adopted a narrative inquiry, and data were collected through observations, interviews, and work samples. This study found that during the whole process from the preparation phase to the end-of-program evaluation, the instructor captured diverse challenging moments. During the preparation phase, she needed to have careful orchestration in designing lessons in order to overcome her feeling of pressure as a non-native speaker of English and design the integration of contents and English language learning to be truly powerful. In the phase of implementation, the lack of student motivation and building a good rapport between the instructor and the students were certainly challenges. The result of the student evaluations weakened her desire to implement CBI. The instructor incorporated diverse instructional strategies to overcome the obstacles. The instructor's experiences in this study will positively shape future educators' thinking and learning about meaningful and appropriate academic English instruction for content-area teaching of college students who were majoring in early childhood education.

• Bulletin of the Korean Space Science Society
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• 1993.04a
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• pp.17-17
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• 1993

태양의 전자파 복사와 입자의 방출은 지구자기구에 변화를 주어 여러 종류의 플라즈마를 발생시킨다. 관측되는 플라즈마파중에서 주파수가 가장 낮은 영역의 파를 극초저주파수 파동(Ultra Low Frequency pulsation)이라 부르며 주기는 수 초에서 수십 분에 이른다. 본 연구에서는 자기권 내부에 존재하는 플라즈마구 영역(L <5)에서 발생되는 주기가 10 \ulcorner45초인 Pc 3파를 다룬다. 210˚ 자기자오선상에 위치한 Kagoshima(KAG. L=1.22), Chichihima(CBI, L=1.44), Birdsvile(BSV, L=1.57) Adelaide(ADE, L=2.13)관측소에서 1990년 7월27일 잡음정도가 0.1nT rms인 fluxgate 자기계측기를 사용하여 측정하였으며 이 자료를 이용하여 Pc 3파의 Power Spectrurn을 구하고 자기위도 변화에 따른 Pc 3파간의 상관성을 알아본다.

• Korean Journal of Human Ecology
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• v.21 no.4
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• pp.629-647
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• 2012

This study explored what Korean college students, especially preservice teacher in early childhood education, experienced and how they constructed the meanings of experiences about their subject- matter course (early childhood mathematics education) taught in English. One cohort- 20 senior students- majoring in early childhood education in a 4-year university was participated in this study. Using action research method and narrative research method, data were analyzed. The findings were as follows: 1) preservice teacher experienced some difficulties to construrct professional knowledge through English. 2) They challenged to overcome these difficulties through active participation. 3) They got supports from instructor and peer group. 4) They accomplished the course with self-satisfaction. 5) They experienced the conflicts between social requirements and personal needs.

• Korean Journal of Childcare and Education
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• v.16 no.2
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• pp.47-65
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• 2020

Objective: This study investigated the relationship between preschool teachers' creativity, teaching efficacy, and creativity-fostering teaching and examined the mediating effect of teaching efficacy. Methods: A total of 202 preschool teachers participated in this study. The Creative Behavior Inventory (CBI), Teaching Efficacy Scale, and the Creativity-Fostering Teacher Behavior Index (CFTI) were used for the survey. A hypothesized model and alternative model were tested using structural equation modeling. Collected data were analyzed using 18.0 PSAW and AMOS. Results: The results showed that preschool teachers' creativity was positively associated with their teaching efficacy and creativity fostering teaching. Preschool teacher's teaching efficacy positively related to their creativity fostering teaching. Preschool teachers' creativity had a significant positive direct effect on creativity-fostering teaching and also an indirect effect on creativity-fostering teaching via teaching efficacy. Conclusion/Implications: Implications to foster creativity in preschool and kindergarten are discussed, highlighting the necessity for teacher education to promote teaching efficacy as well as teacher's creativity and creativity-related activities.

• Proceedings of the KSRS Conference
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• 2008.03a
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• pp.44-47
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• 2008

본 논문은 KOMPSAT-2호 및 3호의 화상활용 일환으로 고해상도 위성화상을 이용한 정량화 기반의 산불피해등급 분류도에 관한 시범연구이다. 무엇보다 중적외선 밴드가 없는 IKONOS화상에서 NBR산법개발과 NBR에 기초한 산불피해림의 등급분류도를 작성하였다. 본연구의 결과물인 삼척산불지역의 피해등급분류도는 -1과 1사이의 NBR 지수값을 갖는 8bit 회색조 영상을 심 중 경 구분의 산불피해등급별에 따라 각각 적 황 청색으로 나타낸 유색밀도편분 화상이다. 현지 실측의 CBI에 의한 검정에서 정밀 정확으로 평가될 경유, 고해상도 화상을 이용한 NBR기반의 산불피해등급 분류도는 산불 후 피해복구 선택, 즉 자연복원과 인공식재복원에 결정정보가 될 것이다.

• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.6
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• pp.73-83
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• 2016

This study modified and applied the ecological network(Indicator 2) from the City Biodiversity Index(CBI) to be tailored to Korea. It is calculated by utilizing a biotope map and a land cover map. The ecological network of Gyeryong-Si was 13,713,703(33.8%) with the biotope map and 17,686,966(37.9%) with the land cover map. The result of the biotope map was lower than the land cover map. The ecological network of Goyang-Si was 4,961,922(4.9%) with the biotope map and 4,383,207(3.7%) with the land cover map. The result of the land cover map was lower than the biotope map. As a main result of the research, an error was discovered in which, when calculating the ecological network, the types of the military unit facilities were distinguished into a special area on the biotope map and into an urbanization promotion area and a forest area on the land cover map. In the case of a middle-classified, land cover map, the land use in the surroundings of the forest area was not subdivided. An error in the development area expressed as a forest green was discovered. When selecting the natural elements, too, regarding the types of artificially-created rivers, artificial ponds, and artificial grasslands, etc. on a biotope map, the exclusions were necessary. Regarding the natural, bare ground on a land cover map, there was a need to calculate by including the natural elements. It was judged that, in the future, the ecological network in the unit of the entire nation can be analyzed roughly by utilizing a land cover map. It was judged that, in a city having a biotope map, the calculation of the ecological network utilizing a map of the present situation of the urban ecology will be a more accurate diagnosis of the present situation.

• Journal of the Korea Convergence Society
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• v.9 no.9
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• pp.229-243
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• 2018

The purpose of this study is to develop a personality education program that can enhance the virtues of elementary school students, self-esteem, Consideration communication, self-control, honesty courage by using coaching methodologically, To improve the personality virtue. The subjects of this study were 31 students from 4th grade of U elementary school in S Gu, Seoul. The experimental group was divided into 16 sessions, weekly from March 5, 2018 to June 30, 2018, 1 hour (40 minutes). The program consisted of items such as self-esteem, Consideration communication, self-control, honesty courage among the personality virtues of KEDI personality test, Each activity used a tough coaching model developed by combining the GROW model with the Empowering model and considering the developmental level of elementary school students. As a result, all four virtues of personality were significantly improved, model with the Empowering model and considering the developmental level of elementary school students. We compared pre and post test result with paired t-test. As a results, the experimental group showed improvement in all four virtues of personality at 0.05 significance level, whereas the control group did not. This suggests that the program can be usefully used as a tool to improve four virtues of personality of elementary school students. For further research, we expect that the program would be integrated with state-of-art technology such as online program or CBI(Computer-Based Instruction).