• 한국가구학회지
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• 제20권4호
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• pp.317-325
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• 2009

On the ground of that toy as for infants is an important tool for education as well as play and furthermore it has a great influences on their growth and development, the present study intends to analyze the characteristics of the infant-oriented toys made of wood, the environment-friendly material. Object of the study includes the infants aged 2 to 7, and the wooden toy not only in domestic also international cases are investigated and analyzed from the point of function and design in particular, and the infant-oriented wooden toy is finally characterized. The wooden toys are classified in 5 items according to functions. There are toy helping a physical development like small muscles, toy improving the creativity, toy assisting language learning like Korean & English, toy contributing to number understanding and counting, and toy for imitation of social roles. The characteristics of the wooden toy are that the natural color & grain of wood are shown first, and also the natural texture & aroma of wood are felt secondly, and geometric design and shape are often presented thirdly, and recycling is available fourthly, and it is expensive finally. In order to revitalize the wooden toys lagging behind the cheap and diverse toys made of plastic, it is highly needed that development of the environment-friendly painting, unique design, marketing strategy of enterprises and use of domestic wood material.

• Tribology and Lubricants
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• 제22권5호
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• pp.276-281
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• 2006

The fractal dimension is quantitatively to define the irregular characteristic of the shape in natural. It can be useful in describing morphological characteristics of various wear particles. This paper was undertaken to diagnose failure condition for sliding members in lubrication by fractal dimension. It will be possible to diagnose wear mechanism, friction and damage state of machines through analysis of shape characteristics for wear particle on driving condition by fractal parameters. In this study, the calculating and analyzing methods of fractal dimensions were constructed for the condition monitoring and wear particle analysis in lubricant condition. So, we carried out the Friction and wear test with the ball on disk type tester, and the fractal parameters of wear particle in lubricated conditions were calculated. Fractal parameters were defined as texture fractal dimension ($D_{t}$), structure fractal dimension ($D_{s}$) and total fractal dimension (D).

• Journal of Oral Medicine and Pain
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• 제35권4호
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• pp.237-243
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• 2010

흑색극세포증은 대개 피부가 접히는 부위에서 짙은 색의 반점과 함께 벨벳양상을 가진 두꺼워진 피부 그리고 혀, 치은, 점막, 구개를 포함하는 구강내 및 입술부위의 유두종증의 특징을 가진다. 그중에서도 악성 흑색극세포증은 기저 암종과 연관되어 발생되며 특징적으로 입술과 눈꺼풀의 개화성 유두종증, 손바닥 및 발바닥의 저명한 과각화증, 레제르-트렐라 증후와 같은 세가지 특징이 나타난다. 본 증례의 환자에서 악성 흑색극세포증의 전형적인 임상적 그리고 조직학적 특징과 함께 악성 위장 선암종의 병력을 가지고 있었다.

• 자원환경지질
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• 제29권2호
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• pp.159-170
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• 1996

The gold-silver deposits of the Nakcheon, Eunchi and Jungbong mine in the northern Taebagsan mining district are composed of fissure fil1ing veins emplaced in Precambrian meta-sediments and Jungbongsan granite. Based on the changes of ore texture and mineralogy, ore mineral chemistry, fluid inclusion and mineralizing condition, a regional zoning is recognized from the Nakcheon to the Eunchi and Jungbong ore deposits, and this trend of zoning is also recognized by stable isotope compositions. Stable isotope compositions show that the source of su1fur and carbon is mainly igneous origin, and the water of ore fluid in the Nakcheon ore deposits is mainly magmatic origin but much of meteoric water is involved in ore fluid of the Eunchi and Jungbong ore deposits. The ore deposits of study area is polymetallic meso to epithermal type genetically related to the acidic igneous pluton. Due to the differntial erosion level and mineralized depth, each ore deposits has a slightly different characteristic of mineralization; The Nakcheon ore deposits belong to meso-epithermal type, but the Eunchi and Jungbong ore deposits belong to epithermal type.

• 한국가구학회지
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• 제20권3호
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• pp.213-221
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• 2009

This study aimed at developing furniture for children by Ilgumte which is an expert manufacturer of educational equipments for school and kindergarten and the aim of this investigation is to develop the child-oriented furniture in consideration of Ilgumte's characteristic as a company composed of the disabled people, and furthermore to create a new sales market by developing own technology to improve competitive power. The current status of the child furniture in domestic and international market was researched and design concept on basis of this analysis was set, and through the designing process the new items of furniture having characteristics as follows were developed. First, the simple production way for the disabled to be able to work was selected and plywood used mainly by Ilgumte was presented as main material. Second, moving course, space and storage function were maximum considered, so that children feel convenient at using the furniture in their space, in case of playing as well as leaning. Third, natural wooden texture was mostly reflected for the emotional aspects of children and pink color played a role as partial accents. Finally, difficult production skill and expensive material were excluded for cost down.

• 전기학회논문지
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• 제66권8호
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• pp.1272-1277
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• 2017

To assist radiologists for the characterization of breast masses, Computer-aided Diagnosis(CADx) system has been studied. The CADx system can improve the diagnostic accuracy of radiologists by providing objective information about breast masses. Morphological and texture features were extracted from the breast ultrasound images. Based on extracted features, the CADx system retrieves masses that are similar to a query mass from a reference library using a k-nearest neighbor (k-NN) approach. Eight similarity measures of distance, Euclidean, Chebyshev(Minkowski family), Canberra, Lorentzian($F_2$ family), Wave Hedges, Motyka(Intersection family), and Cosine, Dice(Inner Product family) are evaluated by ROC(Receiver Operating Characteristic) analysis. The Inner Product family measure used with the k-NN classifier provided slightly higher performance for classification of malignant and benign masses than those with the Minkowski, $F_2$, and Intersection family measures.

• Ocean Systems Engineering
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• 제6권3호
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• pp.217-231
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• 2016

This paper presents a new approach for underwater image analysis using the bi-dimensional empirical mode decomposition (BEMD) technique and the phase congruency information. The BEMD algorithm, fully unsupervised, it is mainly applied to texture extraction and image filtering, which are widely recognized as a difficult and challenging machine vision problem. The phase information is the very stability feature of image. Recent developments in analysis methods on the phase congruency information have received large attention by the image researchers. In this paper, the proposed method is called the EP model that inherits the advantages of the first two algorithms, so this model is suitable for processing underwater image. Moreover, the receiver operating characteristic (ROC) curve is presented in this paper to solve the problem that the threshold is greatly affected by personal experience when underwater image edge detection is performed using the EP model. The EP images are computed using combinations of the Canny detector parameters, and the binaryzation image results are generated accordingly. The ideal EP edge feature extractive maps are estimated using correspondence threshold which is optimized by ROC analysis. The experimental results show that the proposed algorithm is able to avoid the operation error caused by manual setting of the detection threshold, and to adaptively set the image feature detection threshold. The proposed method has been proved to be accuracy and effectiveness by the underwater image processing examples.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.125-127
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• 2004

High-resolution satellite images offer abundance information of the earth surface for remote sensing applications. The information includes geometry, texture and attribute characteristic. The pixel-based image classification can't satisfy high-resolution satellite image's classification precision and produce large data redundancy. Object-oriented information extraction not only depends on spectrum character, but also use geometry and structure information. It can provide an accessible and truly revolutionary approach. Using Beijing Spot 5 high-resolution image and object-oriented classification with the eCognition software, we accomplish the cultures' precise classification. The test areas have five culture types including water, vegetation, road, building and bare lands. We use nearest neighbor classification and appraise the overall classification accuracy. The average of five species reaches 0.90. All of maximum is 1. The standard deviation is less than 0.11. The overall accuracy can reach $95.47\%.$ This method offers a new technology for high-resolution satellite images' available applications in remote sensing culture classification.

• IEIE Transactions on Smart Processing and Computing
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• 제2권1호
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• pp.27-35
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• 2013

This paper proposes a face tracking algorithm for a viewpoint adaptive multi-view synthesis system. The original scene captured by a depth camera contains a texture image and 8 bit gray-scale depth map. From this original image, multi-view images that correspond to the viewer's position can be synthesized using geometrical transformations, such as rotation and translation. The proposed face tracking technique gives a motion parallax cue by different viewpoints and view angles. In the proposed algorithm, the viewer's dominant face, which is established initially from a camera, can be tracked using the statistical characteristics of face colors and deformable templates. As a result, a motion parallax cue can be provided by detecting the viewer's dominant face area and tracking it, even under a heterogeneous background, and synthesized sequences can be displayed successfully.

• 한국식품조리과학회지
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• 제12권1호
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• pp.60-73
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• 1996

This study was undertaken to investigate the effect of cereals on the physicochemical and sensory characteristics of Noti. Noti is one of Korean traditional pan-fried glutinous cereal cakes. Noti made from the steamed glutinous rice flour, glutinous Chinese millet flour, glutinous millet flour or glutinous Indian millet flour is saccharified with malt, and then pan-fried. Noti also has sweet taste without sugar added. In addition, Noti has elastic characteristic, high calorie and good flavor. Long storage makes it better taste. In this case, Noti was made from the steamed glutinous rice flour. By the sensory evaluation, color, flavor and moistness were unfavorable according to the storage. Consistency was not strongly increased when comparing with the common rice cake depending upon the storage. The texture tended to increase by storage period. Optimum conditions of the safe storage and overall acceptability were to add 15% malt and keep 6hr saccharification time at 60$^{\circ}C$. During the period of storage for 90 days, reducing sugar content was similar, moisture content was low and maintained, and the acid value was not increased abruptly. The hardness was not increased rapidly and fungal growth was considerably low. Cohesiveness and elasticity were increased during storage.