• Journal of Gifted/Talented Education
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• v.13 no.2
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• pp.113-130
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• 2003

In this study, learning materials that can be applied for web-based distant learning model were developed based on the characteristics of elementary school science in which investigation skills and thinking ability are considered to be important. And the effect of students' activity in a reports on student's investigating and thinking ability was investigated. While designing diverse experimental procedures, the students had. an opportunity to improve their observation attitude and way of scientific thinking. Such improvement was possible, only because the present web-based distant learning model consists of requiring an interaction between the students and a report and evaluation system which can put together such effort. Still, it was acknowledged that, as being in lack of teacher's direct support and supervision, the present web-based distant learning model might be somewhat ineffective in guiding the students in accordance with their own characteristics. For example, the students had a tendency to maintain their basic idea and style even when their reports are individually examined and corrected in terms of the format of the report.

• KIPS Transactions on Computer and Communication Systems
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• v.2 no.6
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• pp.257-264
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• 2013

In this study, we have designed the variable amplitude threshold algorithm that can enhance the accuracy of step count using variable amplitude. This algorithm converts the x, y, z sensor values into a single energy value($E_t$) by using SVM(Signal Vector Magnitude) algorithm and can pick step count out over 99% of accuracy through the peak data detection algorithm and fixed peak threshold. To prove the results, We made the noise filtering with the fixed amplitude threshold from the amplitude of energy value that found out the detection error was increasing, and it's the key idea of the variable amplitude threshold that can be adapted on the continuous data evaluation. The experiment results shows that the variable amplitude threshold algorithm can improve the average step count accuracy up to 98.9% at 10 Hz sampling rate and 99.6% at 20Hz sampling rate.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.8-11
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• 2009

성공적인 창업을 위해서는 창업가의 준비가 선행되어야 하지만, 매력적인 사업 아이디어의 계발이 뒤따라야 한다. 그러나 지금까지의 창업연구는 창업행동과 사업성과에 영향을 미치는 창업가 요인에 치우쳐 있으며, 사업 아이디어의 계발과 평가에 대한 연구는 부족한 실정이다. 이 연구는 고객이 상품을 구매하기 전 인터넷 검색엔진에서 해당 상품에 대한 검색을 하는 경우가 일반화되고 있다는 사실과 고객이 검색엔진에 입력하는 키워드는 고객의 의도를 대변한다는 사실을 기초로, 키워드로 표현된 사업 아이디어의 매력도를 객관적으로 측정하는 방법을 제시하는 것을 목적으로 한다.이 연구는 키워드로 표현된 사업 아이디어 매력도(BIA)를 구매의도를 가진 잠재고객의 자사 웹 사이트 방문수로 정의한다. 키워드로 표현된 사업 아이디어 매력도(BIA)는 [해당 키워드의 조회수(Q) ${\times}$ 구매의도 비율(R) / 경쟁 사이트의 수(S)]의 수식으로 나타낼 수 있으며, 수식을 구성하는 변수 중에서 해당 키워드의 조회수(Q)와 경쟁 사이트의 수(S)는 검색엔진에서 쉽게 제공 받을 수 있으므로, 구매의도 비율(R)만 알 수 있다면 BIA를 비교적 정확히 추정할 수 있다. 연구자는 특정 분야 키워드 100개를 선정한 다음, 전문가로 하여금 각 키워드의 구매의도 비율(R)을 추정하게 하고, 전문가 추정 없이도 구매의도 비율을 예측할 수 있도록 각 키워드의 구매의도 비율(R)을 예측하는 주요 데이터를 의사결정 나무 기법으로 도출하고, 의사결정 나무 기법으로 도출된 데이터로 구성된 회귀식을 제시함으로써 키워드로 표현된 사업 아이디어 매력도(BIA)를 객관적으로 평가하는 방법을 제시한다. 이 연구는 사업 아이디어의 계발과 평가에 대한 객관적인 기준을 제시함으로써 창업의 성공률을 높이는 데 기여할 수 있고, 창업연구에 새로운 방법론을 도입했다는 점에서 의의가있다.

• Fashion & Textile Research Journal
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• v.20 no.2
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• pp.156-166
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• 2018

The purpose of this study is to present the suitable material that can be a real help to make the creativity development teaching method for creative inspirations of fashion design. To achieve these goals, researched and analyzed the creativity studies in the fields of psychology, education, and design (visual design, product design, fashion design, etc.) published in the national journal. Through this analysis, were extracted the characteristics of creativity, teaching methods for creativity learning, and expression methods. Based on this, intend to provide the creativity characteristic, the expression method, and the problem solving process in teaching methods for promoting fashion design ability. After the analysis, the results are as follows; First, the classical 4P (Place, Person, Process, Product) is important to a creativity development teaching method for fashion design. The elements of creativity of a creativity development teaching method for fashion design are 5elements; curiosity, openness, originality, patience, and synthetic ability. Second, the typical method is a drawing (such as a sketch) when visually express and embody ideas in fashion design. Drawing is an important activity that is working with the right brain and the left brain. Drawing exercises will reduce the burden of expressing ideas, providing pleasure and fulfillment in the development of creative ideas. Third, offered 5stages to solve problems of a creativity development teaching method for fashion design; understanding stage, idea stage, visualization stage, evaluation stage, and verification stage. Abstract intangible ideas are concreted and elaborated through stages of visual manifestation such as language, symbol, and drawing.

• Journal of Elementary Mathematics Education in Korea
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• v.18 no.2
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• pp.341-355
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• 2014

The purpose of this study was to analyze the research trends of elementary mathematics education in Japan. For this purpose, 192 papers published by Japan Society of Mathematics Education for the last 10 years(2004-2013) were analyzed according to there criteria. First, as for research topics, the frequent topics in order were instructional design and methods (36.7%), analysis of curriculum and textbook, general studies, learners' perspectives and abilities, evaluation, teacher education, education engineering and parish. Second, the contents were researched by the order of number and operations (47.4%), geometry, regularity, measurement and probability and statistics. Finally, research subjects of this study were researched by the order of students(39.3%), teachers. Papers dealing with lower graders as well as pre-service teachers were rare. And article dealing with low-achievers and gifted students were not founded. On the basis of this result, we hope it will provide the follow-up and the idea of the elementary mathematics education in Korea and also help various and balanced development.

• Anxiety and mood
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• v.13 no.2
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• pp.93-99
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• 2017

Objective : This study aimed to evaluate the association of exhaustion, ADHD, self-esteem, impulsivity, suicidal tendencies and quality of life as well as depression and anxiety in fire officers in Korea. Methods : This study was undertaken for the first time in Korea, from September 2016 to December 2016. A set of questionnaires was provided to a total of 113 fire officers and 284 other participants as a comparison group. All subjects were evaluated using the Beck's Depression Inventory, Beck's Anxiety Inventory, Malach Burnout Inventory, Korean Adult Attention Deficit Hyperactivity Disorder Scales, Rosenberg's Self-esteem Inventory, Baratt's Impulsivity Scale, Beck's Scale of Suicide Ideation, and Quality of Life Scale. Furthermore, the odds ratio of depression, anxiety, exhaustion, ADHD, self-esteem, impulsivity, suicidal tendency and quality of life were evaluated the fire officer group and control group were compared through logistic regression analysis. Result : The results of this study indicated that the fire officers were more likely to show depression, anxiety, exhaustion, ADHD, low self-esteem and higher impulsivity. Also, the association between the fire officer group and depression, ADHD and impulsivity was confirmed through logistic regression analysis. Conclusion : Timely and effective evaluation and treatment of impulsivity, as well as depression is required for fire officers.

• Journal of Microbiology and Biotechnology
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• v.22 no.11
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• pp.1510-1517
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• 2012

To evaluate the probiotic potential of Bacillus polyfermenticus CJ6 isolated from meju, a Korean traditional soybean fermentation starter, its functionality and safety were investigated. B. polyfermenticus CJ6 was sensitive to all antibiotics listed by the European Food Safety Authority. The strain was also non-hemolytic, carried no emetic toxin or enterotoxin genes, and produced no enterotoxins. The resistance of B. polyfermenticus CJ6 vegetative cells and spores to simulated gastrointestinal conditions was high (60-100% survival rate). B. polyfermenticus CJ6 produced high amounts (0.36 g as a purified lyophilized form) of ${\gamma}$-polyglutamic acid (PGA). We speculate that the improved cell viability and the production of ${\gamma}$-PGA have a significant correlation. Adhesion of the strain to Caco-2 and HT-29 cells was weaker than that of the reference strain (Lb. rhamnosus GG), but it was comparable to or stronger than those of reported Bacillus spp. When B. polyfermenticus CJ6 spores were given orally to mice, the number of cells excreted in the feces was 4-fold higher than the original inocula. This suggests the inoculated spores propagated within the intestinal tract of the mice. This idea was confirmed by field emission scanning electron microscopy, which revealed directly that B. polyfermenticus CJ6 cells germinated and adhered within the gastrointestinal tract of mice. Taken together, these findings suggest that B. polyfermenticus CJ6 has probiotic potential for both human consumption and use in animal feeds.

• Korean Journal of Child Studies
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• v.3
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• pp.83-96
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• 1982

TV has a very strong influence on various aspects of children's life and development. In view of this influence, various problems related to the content and production of TV programs for early - childhood deserve a careful study. Recognizant of this significance, this study aims to suggest the direction in which the production of TV programs for early childhood in Korea will steer by defining the concept of TV programs for early childhood and by analyzing the current status and trends of producting TV program for early childhood at abroad. In this study, attempts were made to suggest some strategies for the production of TV programs for early childhood based on an expansive literature review. 1. The running time of TV programs for early-childhood ages of 4-5 year old is suggested to be 15 minutes. 2. In the process of producing the programs, a group of professionals including in-service teachers, researchers specializing in child development, psychology and sociology, idea-creators, script writers, media experts, producers, and monitors should provide concerted efforts throughout the process. 3. The running time of TV programs for early-childhood should be less than 20 minutes and therefore should have simple learning objectives. 4. The contents of programs should be organized in such a way as to enable children to view themselves as well as the environment in more positive ways and to fester desirable values and beliefs in them based on various constructive activities and plays. 5. The programs should adopt various techniques including repetition, to ensure the maximum learning effect in full consideration of children's interest. 6. The programs should be continuously revised and supplemented based on the evaluation of the programs, children's responses and monitor's feedbacks.

• Journal of the Korea Society of Computer and Information
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• v.25 no.7
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• pp.47-55
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• 2020

In this paper, we propose one stage multi-scale face detector based Fully Convolution Network using anchor free method. Recently almost all state-of-the-art face detectors which predict location of faces using anchor-based methods rely on pre-defined anchor boxes. However this face detectors need to hyper-parameters and additional computation in training. The key idea of the proposed method is to eliminate hyper-parameters and additional computation using anchor free method. To do this, we apply two ideas. First, by eliminating the pre-defined set of anchor boxes, we avoid the additional computation and hyper-parameters related to anchor boxes. Second, our detector predicts location of faces using multi-feature maps to reduce foreground/background imbalance issue. Through Quantitative evaluation, the performance of the proposed method is evaluated and analyzed. Experimental results on the FDDB dataset demonstrate the effective of our proposed method.

• Journal of The Korean Association of Information Education
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• v.20 no.1
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• pp.47-56
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• 2016

In order to nurture creative talent in the 21st century knowledge-based society in elementary education software is carried from the year 2018. The educational content and achievement standards to conduct a software education had been made in the 2015. In this study, the recognition of educational software for elementary school teachers 199 people is investigated. Findings are as follows. Elementary education is the first software required, and is lacking in 17 hours. Second, the idea of a common training software education, teaching and learning methods, evaluation methods, how to develop information materials. Third, lower cognitive development and educational materials for the teaching methods appropriate for understanding, achievement standards for achievement standards. Therefore, should allow teacher training teaching materials development, assessment methods, teaching methods suitable for the achievement standards available to all teachers throughout the school know.