• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2011년도 춘계학술대회 논문집
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• pp.361-364
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• 2011

In this paper, This work demonstrates a experimental evaluation for vehicle road noise NVH performance from the component-level NVH measurements of Tire. The power unit noise from tire emitted by cars has been reduced. It has been found that tire noise dominates noise produced by the power train when vehicles are driven at high constant speed. Therefore tire pattern noise is affected by pattern and vehicle and transmission loss. Tire noise mechanism is generated by several mechanisms. The sound of tire can propagate either through the air or through the structure of vehicle. Pattern noise is the result of pressure variations through the air to the interior side of vehicle. Especially, smooth asphalt, the periodicity of tread design, groove depth is important factor, which have an influence on the reduction of tire pattern noise.

• 한국멀티미디어학회논문지
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• 제18권11호
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• pp.1281-1288
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• 2015

Nongroup Cellular Automata(CA) having two trees in the state transition diagram of a CA is suitable for pattern classifier which divides pattern set into two classes. Maji et al. [1] classified patterns by using multiple attractor cellular automata as a pattern classifier with dependency vector. In this paper we propose a method of generation of a pattern classifier using feature vector which is the extension of dependency vector. In addition, we propose methods for finding nonreachable states in the 0-tree of the state transition diagram of TPMACA corresponding to the given feature vector for the analysis of the state transition behavior of the generated pattern classifier.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2005년도 추계 종합학술대회 논문집
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• pp.659-663
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• 2005

기존의 디자인패턴도구에서는 디자인패턴을 정형화된 방법으로 표현하고 설계할 수 없었으므로, 설계정보에 디자인패턴이 재사용 될 때 중복적으로 설계정보가 표현되었다. 그리고 정형화된 디자인패턴은 설계자의 의도에 맞도록 확장 가능하여야 하며, 설계자의 설계의도에 따라 객체를 표현할 수 있어야 한다. 따라서 본 논문에서는 디자인패턴을 정형화하기 위한 메타모델로 XMI를 이용하여 정의하는 방법과 메타모델로 표현된 디자인패턴을 확장하기 위한 메타모델을 표현할 수 있도록 하였다.

• 한국의상디자인학회지
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• 제7권3호
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• pp.83-94
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• 2005

This paper is to analyze patterns for Indonesian traditional textiles. Ikat is the resist-dyeing process in which designs are reserved in warp or weft yams by tying off small bundles of threads with fiber resists to prevent the penetration of dye. Batik is the technique applying a wax resist before dyeing to form a pattern in negative. Ikat and batik are the most renowned textile arts of Indonesia. Patterns are classified as geometric pattern, plant pattern, animal pattern. Also this paper discusses the origins of ikat and batik. Therefore this Paper proposes the classification and feature extraction of ikat and batik patterns. The results of this study can be effectively applied to develop competitive pattern design for Indonesian textile market.

• 한국멀티미디어학회논문지
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• 제18권1호
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• pp.71-80
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• 2015

Many researches have been studied to overcome the weak points in authentication schemes of mobile devices such as pattern-authentication that is vulnerable for smudge-attack. Since random-pattern-lock authenticates users by drawing figure of predefined-shape, it can be a method for robust security. However, the authentication performance of random-pattern-lock is influenced by input noise and individual characteristics sign pattern. We introduce an optimization method of user input direction to increase the authentication accuracy of random-pattern-lock. The method uses the likelihood of each direction given an data which is angles of line drawing by user. We adjusted recognition range for each direction and achieved the authentication rate of 95.60%.

• 한국멀티미디어학회논문지
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• 제22권2호
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• pp.117-127
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• 2019

Simultaneous pattern measurement system is new research subject for OLED panel inspection. It is defect inspection of OLED panel after deposition. This research suggests the system that calculates the size and center point of each patterns after obtaining standard and deposition pattern as one image. This system could be applied to OLED manufacturing process. The research result shows that the size and center point of each patterns could be obtained by displaying the standard pattern and deposition pattern in one image.

• PNF and Movement
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• 제15권2호
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• pp.177-183
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• 2017

Purpose: This study compared and analyzed the effect of the proprioceptive neuromuscular facilitation (PNF) arm extension pattern and leg flexion pattern on the contralateral lower extremity muscles when the patterns were applied to the same subject. Methods: In the study, 35 healthy men and women who understood the PNF patterns were selected as participants. The participants completed the PNF arm extension-abduction-internal rotation pattern and leg flexion-adduction-external rotation with knee flexion pattern in the supine position. While the patients' completed each pattern, the contralateral leg muscle activity was measured to examine the irradiation effect. The maximum isometric contraction time of the muscles to be measured was kept for 5 seconds, and the mean value was obtained by repeating the pattern three times. Results: When the leg flexion-adduction-external rotation with knee flexion pattern was completed, the muscle activity in the vastus lateralis, vastus medialis, biceps femoris, tibialis anterior, and gastrocnemius of the contralateral lower extremity was significantly greater than that found in the PNF arm extension-abduction-internal rotation pattern. Conclusion: The PNF leg flexion pattern showed greater muscle activity on the contralateral lower extremity than the arm extension pattern. Thus, the PNF leg extension pattern is more effective in the activation of the muscles associated with weight-bearing activity.

• 한국의류산업학회지
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• 제12권1호
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• pp.1-9
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• 2010

A purpose of this study was to find out how the casual and formal style clothes of stripe pattern giving variety by pattern direction, pattern width, and contrast coloration have an effect on image of wearers. 432 stimuli were made and 2,800 testee evaluated them using semantic differential scale. As a result, five image dimensions were drawn as a factor of attractiveness, activeness, gracefulness, visibility, and tenderness. In consequence of analysing the image difference by stripe pattern and clothing style, the stripe pattern and clothing style affect image presentation as a significant clue. And besides, as a result of positioning stimuli by image, pattern direction, coloration, and tone combination were important clues that decide image. Consequently, clothing style, stripe pattern, and contrast coloration were made clear as an efficient parameter in image presentation of clothing wearers.

• 동아시아식생활학회지
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• 제11권1호
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• pp.71-81
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• 2001

The Purpose of this study was to identify the dimensions and pattern types for the perception of Korean traditional food and to find the determinants of the pattern types, taking food cultural background into account. Data were factor and cluster analyzed, and the results revealed two different dimensions and pattern types. Descriptive statistics showed that perceptional pattern types, i.e., traditional-modern pattern and tradition-oriented pattern, are likely to vary depending on socio-demographic and cultural background of Korean traditional food in Korea. Similarities and differences in perceptional pattern types are discussed, and future implications for food and nutrition specialists and food marketers are provided.

• 한국식생활문화학회지
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• 제10권4호
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• pp.235-239
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• 1995

After 1960, staple food consumption pattern of Korea underwent a significant change from the former rice-barley pattern to the present rice-wheat pattern. Therefore the present staple food consumption pattern of Korea may be defined as a mixture of grain and flour consumption.