• Journal of Nutrition and Health
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• 제37권10호
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• pp.928-937
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• 2004

The purpose of this study was to investigate the elementary school teacher's status and recognition of nutrition education (NE) in Incheon. A cross-sectional study was carried out using a self-administered questionnaire and subjects were 147 elementary school teachers. The results are as follows. Only 9.5% of the teachers had training in NE and 71.4% of the teachers with training increased concern about NE after training. As for experience of NE, 61.6% of the teachers experienced NE and more than half of them gave NE less than twice per month. There was a significant difference in reason for not giving NE between subgroups by teaching career; 57.7% of the teachers with career more than 10 years did not give NE due to too much other work. As for existence of nutrition educator in school, 48.9% of the teachers recognized its existence and 91.3% of them answered that dietitians have done NE. For correction of unbalanced diet, good table manner, and nutrition and growth, 97.9% of the teachers answered that NE is necessary in elementary school. As for proper time to start NE, 57.5% of the teachers answered kindergarten and 39,7% answered lower grade of elementary school. As for effective type for NE, 47.3% of the teachers answered NE as a part of other subject and 28.1 % answered NE as a separate subject. Also 69.8% of the teachers answered dietitian as suitable person for NE. As for newly establishing a NE subject, 37.9% of the teachers disagreed and as for most effective method for NE, 73.3% answered NE linked with school lunch program. Most of teachers recognized elementary school students' eating habit problem severe and change of their eating habit such as various food choice, no plate waste and good table manner after school lunch program. Therefore, it should be nationally supported that a standardized NE program is developed and coordinated among teachers, school lunch dietitian as NE specialist, family and community for elementary students' health and well-being.

• 한국지능시스템학회논문지
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• 제15권4호
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• pp.400-405
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• 2005

본 논문에서는 고유얼굴을 이용한 얼굴인식 시스템의 성능을 분석한다. 개인의 신분을 확인하는 시스템의 단점을 보완하기 위하여 최근 생체인식 기술이 활발하게 연구되어오고 있으며, 그 중에서도 얼굴인식은 직관적인 이해가 가능하기 때문에 컴퓨터 비전과 패턴인식 분야에서 폭 넓게 연구되고 있다. 고유얼굴을 이용한 얼굴인식 방법은 훈련집합의 얼굴 이미지의 중요한 변화를 효율적으로 표현하는 특징 공간으로 투영시키면서 이루어진다. 여기서 특징 공간에 투영된 얼굴 이미지의 특징을 고유얼굴이라 한다. 개개의 얼굴 이미지는 고유얼굴의 가중함으로 근사화 되므로, 입력 얼굴의 인식은 훈련집합의 가중치와 입력 영상의 가중치를 비교하면서 이루어진다. 본 논문에서는 고유얼굴을 이용한 얼굴인식 방법의 성능을 검증하기 위해서 Harvard 데이터베이스를 이용하였으며, 시스템의 성능 분석을 위하여 조명에 대한 인식성능의 변화, 사용한 고유얼굴의 수에 대한 인식률의 변화, 전처리를 통하여 얻을 수 있는 인식률의 변화, 인식 거부 곡선을 통하여 시스템의 실제 적용 가능성에 대한 실험을 수행하고 결과를 분석한다.

• 전자공학회논문지S
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• 제34S권7호
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• pp.102-111
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• 1997

In this paper, a patern recognition method of surface mount device(SMD) IC using wavelet transform and neural network is proposed. We chose the feature parameter according to the characteristics of coefficient matrix which is obtained from four level discrete wavelet transform (DWT). These feature parameters are normalized and then used for the input vector of neural network which is capable of adapting the surroundings such as variation of illumination, arrangement of objects and translation. Experimental results show that when the same form of feature pattern, as is used for learning, is put into neural network and gained 100% rate ofrecognition irrespective of SMD IC kinds, location and variation of illumination. In the case of unused feature pattern for learning, the recognition rate is 85.9% under the similar surroundings, where as an average recognition rate is 96.87% for the case of reregulated value of illumination. Proosed method is relatively simple compared with the traditional space domain method in extracting the feature parameter and is also well suited for recognizing the pattern's class, position and existence. It can also shorten the processing tiem better than method extracting feature parameter with the use of discrete cosine transform(DCT) and adapt the surroundings such as variation of illumination, the arrangement and the translation of SMD IC.

• 한국지능시스템학회논문지
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• 제18권4호
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• pp.463-470
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• 2008

본 논문에서는 로봇이 획득한 정보가 내포하는 '장애물의 존재성'과 '장애물 사이의 연결성'이 위치인식에 효과적으로 사용 될 수 있음을 러프집합을 이용하여 확인한다. 그리고 두 속성을 이용하여 위치인식의 애매성을 줄이고, 신뢰할 수 없는 환경 정보에서도 로봇의 위치 판단이 가능한 위치인식 방법을 제안한다. 로봇이 환경 정보를 축소하여 구성한 지도만으로도 목표점까지 이동하는 것을 모의실험을 통해 확인하였다.

• 정보처리학회논문지B
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• 제17B권2호
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• pp.107-114
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• 2010

사용자가 직접 연주하여 제작한 콘텐츠에서 많이 사용되는 악기는 기타, 피아노, 그리고 바이올린 이다. 이중 기타와 피아노가 만들어 내는 오디오 신호의 특성이 비슷하여 구분하기가 어렵다. 하지만 시간에 따른 신호의 에너지 변화가 피크(Peak)들을 중심으로 서로 다른 패턴을 보이는 것으로 분석되었다. 누적 히스토그램을 이용하여 피크 존재 가능성의 확률적 분포를 구한 후, 피크를 중심으로 그 주변의 주파수 대역 별에너지 변화 패턴을 통계적 방법으로 모델링하여 실험한 결과 피아노와 기타의 구분 성공률이 최고 14% 정도의 향상을 보였다.

• The Journal of Asian Finance, Economics and Business
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• 제7권11호
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• pp.251-257
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• 2020

The study investigates the role of commodity prices and tax purpose recognition on bitcoin prices. Since the introduction of bitcoin in 2008, emphasis has focused on economists, policy-makers and analysts drastically increasing bitcoin's accessibility and commodity values (Dumitrescu & Firică, 2014). This study employs GARCH and EGARCH from ARCH/GARCH family on daily nature data. We measure the volatile behavior of bitcoin by employing auto-regressive conditional heteroscedasticity model with the aim to explore the relationship between major commodities and bitcoin volatility. We focus on major commodities like gold, silver, platinum, and crude oil to be regressed with bitcoin. The daily prices of commodities were retrieved from www.investing.com and bitcoin prices from www.coindesk.com for the period from 29April 2013 to 16 October 2018. Results confirmed the currency's long-term volatile behavior, which is due to its composition and market dynamics, whereas the existence of asymmetric information effect is not confirmed. Tax recognition by other countries may in future help in controlling the volatility as bitcoin is not a country-specific security. But, only silver impacts on volatility in comparison to oil prices and platinum, which is due to its similar features with gold. Eventually, bitcoin can be used for risk diversification and money making.

• 대순사상논총
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• 제16권
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• pp.105-130
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• 2003

Religious Though includes desirable attitudes towards existence of human beings and the value of life. These can be considered as the viewpoint of human being in religions. Also, the recognition frame of human being should be focused on the desirable human formation. That is, human being should not be viewed by already established frames, but human beings should be regarded as the ones that by themselves can build their true figures through developing human nature with the self-awareness of existence and the effort for establishing an ideal character. Without the correct concept of a 'human model', it is impossible to shed light on what the process of the human formation is and how the human formation willbe established. A 'human model', that is the goal of such a formation, might show different aspects if considering the historical situations including the circumstance of individuals and society. However, no matter how different 'human model', which are dependent upon phenomenal problems, are considered, it might most likely fails to grasp a fundamental issue without a 'human model' based on the essential problem of human being. In this regards, it can be considered that a 'Perfect person' with including both fundamental ways and relations of existence is the one enabling to establish a true 'human model' and, I try to show its striking example, 'Injon' that is an ideal 'human model' of Daesoon Thought. Therefore, this paper will show the interpretation and understanding of human beings in Daesoon Thought, and examine what their meanings are.

• 한국환경과학회지
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• 제14권12호
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• pp.1081-1085
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• 2005

This study is carried out for obtaining the basic materials for presentation of creation and desirable management of urban roadside trees through analyse the existence effect of trees on people who operate th commercial areas along the streets. Roadside tree and green areas are recognized comfort space in addition to simple planting area. Therefore various trees and flowering plants should be introduced in addition to roadside facilities for convenience. Planted roadside trees should be maintained. We will propose an method that residents plant and manage the trees and flowering plants on the two lane of one way road. However main lines more than four lane of one way have more public property beside the residents space. Therefore these should be maintained mainly by related government agencies.

• International Journal of Contents
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• 제9권4호
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• pp.16-21
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• 2013

Vision system is an indispensable part of constructing the chess-playing robot. Chessboard detection and pieces localization in the captured image of robot's camera are important steps for processes followed such as pieces recognition, move calculation, and robot controlling. We present a method for detecting the Janggi chessboard and pieces based on the edge and color feature. Hough transform combined with line extraction is used for segmenting the chessboard and warping it to form the rectangle shape in order to detect and interpolate the lines of chessboard. Then we detect the existence of pieces and their side by applying the saliency map and checking the color distribution at piece locations. While other methods either work only with the empty chessboard or do not care about the piece existence, our method could detect sufficiently side and position of pieces as well as lines of the chessboard even if the occlusion happens.

• 한국항행학회논문지
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• 제17권6호
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• pp.726-735
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• 2013

본 논문에서는 웨이블릿 변환의 특성을 이용한 얼굴인식 방법을 제안하여 인식성능 향상에 관한 연구를 진행하였다. 사용한 이산 웨이블릿 변환은 모웨이블릿의 특징과 비슷한 Daubechies D4 필터이다. 웨이블릿 변환영역 중 LL 대역의 데이터만을 이용할 경우 원본 데이터에 비하여 크기가 줄어들게 되어 인식과정의 속도와 메모리 사용량을 줄일 수 있게 된다. 또한 2차원 데이터의 변형없이 손실을 줄여 인식률을 향상시키기 위하여 2차원 LDA 방법을 적용하였다. 그리고 여기서 얻은 특징벡터를 이용하여 SVM을 수행하도록 하였다. 실험은 Matlab 프로그램을 통하여 ORL 얼굴 데이터베이스와 Yale 얼굴 데이터베이스를 이용하여 실험을 하였고 기존의 방법들과 인식률과 수행시간을 비교를 함으로써 제안한 방법의 우수성을 입증하였다.