• 패션비즈니스
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• 제4권4호
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• pp.41-54
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• 2000

The purpose of this study was to investigate various expressions in textile design using CAD and present print design of '01/02 A/W. Four steps were taken in order to achieve this purpose. The first step was to investigate prior research and to analyze textile design methods using CAD. The second step was to study '01/02 A/W fashion trend, especially textile trend. The third step was to design the print design according to textile trend and apply the designed print pattern to real model. The research results are as follows: 1. Textile design is a very important field to help making fashion industry more informative and valuable. 2. Using CAD system in textile design will be very useful and urgent in saving working time and exercising design works. 3. In '01/02 A/W hound's tooth, zigzag, herringbone will be prevalent bold geometric patterns while tartan checks, multi color stripes will be popular too. 4. Textile designs using flower, stripe, checks, dot, abstract pattern were applied to real model, the images of patterns design are as follow, flower pattern-romantic stripe-avantgarde check-cute dotclassic abstract motive-intelligent.

• 복식문화연구
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• 제17권6호
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• pp.972-980
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• 2009

This study was aimed to develop ume flower image into a competitive fashion culture product image by reinterpreting the image in modern terms, manufacturing patterns and applying them to various items. In terms of method, ume flower petal was used as a motive and developed into a pattern, using Adobe Illustrator 10, a computer design program. Based on the symbolic image and realist form of ume flower, three new basic motives of new figurative image were set using form omission, simplification, overlapping, repetition and graphic elements. Each motive developed transformed patterns through the change, transformation, combination of colors. The repetitive unit of each motive set expressed geometrical patterns and combination of flower patterns using pattern repetition and $45^{\circ}$ repetition technique in combination with the check arrangement using quadrangle, and set the direction of design that would fit for each item of fashion culture products. Also, consistency and practicality were sought in the goods planning composition of each item by applying motive pattern results to the fashion culture goods, such as neckties, scarves, T-shirts that can be consumed in everyday life. It seems that more creative culture goods including ume flowers will be developed by seeing our own cultural elements as well as flower patterns like ume flower with modern trends.

• 대한전자공학회논문지TC
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• 제45권2호
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• pp.6-12
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• 2008

본 논문에서는 상향 링크 케이블 모뎀 시스템에 대한 동기화 방법에 대하여 제안하였다. 상향 링크의 케이블 모뎀 시스템은 DOCSIS(data over cable service interface specification) 규격에 의해 정해져 있으며, 이에 맞는 동기화 방법에 관하여 연구하였다. 케이블 모뎀은 버스트 모드로 동작하며 시 분할 다중 접속(time division multiple access, TDMA) 버스트 포맷을 사용한다. 버스트 포맷은 프리앰블과 데이터 구간으로 나뉜다. 본 논문에서는 프리앰블을 이용한 프레임 동기, coarse 타이밍 동기, 반송파 주파수 동기, 반송파 각 동기 방법을 연구하였으며, 프리앰블로 이용할 시퀀스로 correlation 특성이 우수한 CAZAC(constant envelope zero-autocorrelation) 시퀀스를 이용하였다. 또한 타이밍 드리프트가 존재하는 경우와 나머지 주파수 오프셋이 주는 영향을 고려하여 데이터 구간에서 심벌 타이밍 동기방식과 주파수 각 오프셋 추정박식을 채택하여 시스템을 구성하였고, 이를 컴퓨터 실험 결과를 이용하여 성능을 검증하였다.

• 대한임베디드공학회논문지
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• 제13권3호
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• pp.151-160
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• 2018

NAND flash memories have the advantages of fast access speed, high density and low power consumption, thus they have increasing demand in embedded system and mobile environment. Despite the low power and fast speed gains of NAND flash memory, DRAM disk buffers were used because of the performance load and limited durability of NAND flash cell. However, DRAM disk buffers are not suitable for limited energy environments due to their high static energy consumption. In this paper, we propose WAP-LRU (Write pattern Analysis based Placement by LRU) hybrid disk buffer management policy. Our policy designates the buffer location in the hybrid memory by analyzing write pattern of the workloads to check the continuity of the page operations. In our simulation, WAP-LRU increased the lifetime of NAND flash memory by reducing the number of garbage collections by 63.1% on average. In addition, energy consumption is reduced by an average of 53.4% compared to DRAM disk buffers.

• 대한한의진단학회지
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• 제22권1호
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• pp.1-10
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• 2018

Objectives The purpose of this study is to compare the representative differential diagnosis methods of blood stasis pattern used in Korea, China and Japan, and then to characterize each diagnostic method. Methods Through the journal databases, we have selected representative tools that were developed for differential diagnosis of blood stasis pattern in Korea, China and Japan. In order to characterize the selected check-lists or questionnaires, we investigated the number of items, contents, score calculation method, internal consistency, and accuracy of each selected tool. Results A total of four diagnostic tools were finally selected; quantitative diagnosis scale of blood stasis syndrome (QDSBSS), diagnostic criteria for blood stasis (DCBS), blood stasis questionnaire (BSQ), and blood stasis syndrome questionnaire (BSSQ). The key points in the differential diagnosis for blood stasis were different for each of the diagnostic tool. The key point was oral mucosa (including tongue) status in the QDSBSS. Meanwhile it was abdominal pain/resistance in the DCBS, and general pain in the BSQ. Accuracy of the QDSBSS, the BSQ and the BSSQ were powerful but all of them was not generalized. Conclusions Therefore, it is desirable to select and apply a plurality of appropriate tools according to the characteristics of the blood stasis patients.

• 전기전자학회논문지
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• 제15권4호
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• pp.261-266
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• 2011

본 논문에서는 LED 가로등의 소비 전력을 줄이고 수명 및 LED 모듈의 열효율을 높이기 위한 효율적인 새로운 조명기기 LED 점등제어 시스템을 제안한다. 제안된 새로운 조명기기 점등제어 시스템은 조도를 측정하여 주변 조도에 따라 4단계로 구분하고 자동 패턴 조명 알고리즘을 적용한다. 그리고 단계검사를 통해 완전대칭을 형성하는 마방진 패턴에 교차점등 알고리즘을 적용하여 설정된 시간동안 점등을 하게 된다. 실험분석 결과, 기존의 조명 시스템과 비교하여 발열량과 소비전력이 최대 30%이상 감소되었고 LED의 수명이 최대 60%이상 향상되었기 때문에 LED 가로등에 적용할 경우 안정적이고 높은 에너지 효율성을 얻을 수 있다.

• 한국의류학회지
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• 제26권7호
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• pp.1055-1065
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• 2002

The specific objectives of the survey were as follows: 1) to survey the knit wear purchasing behavior of the women in their twentieth and thirtieth, 2) to investigate the popular design, color, pattern and material, 3) to analyze the difference of knit wear purchasing behavior and preference. The data was on the base of the results of 321 pcs survey reports. The analysis methods was Means, Percentage, Frequencies, t-test and One-way ANOVA. The results of this study were as follows: 1) Most women were purchasing knit wear for combination with having other clothes. They were satisfied for design, color, activity and quality, but not for size changing after washing, keeping problems and raising of pilling. They liked simple or classic design, mono or pastel color, and no or simple skip pattern, check pattern. 2) The Single women were more purchasing knit wear by impulse for soft and easy handling, combination with other clothes, meet fashion trend than married women. And the women in their twentieth were get more informations for knit wear from mess media and displayed shop than the women in their thirtieth.

• 한국군사과학기술학회지
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• 제19권1호
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• pp.66-75
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• 2016

Stereoscopic image generated by depth image-based rendering(DIBR) for surveillance robot and camera is appropriate in a low bandwidth network. The image is very important data for the decision-making of a commander and thus its integrity has to be guaranteed. One of the methods used to detect manipulation is to check if the stereoscopic image is taken from the original camera. Sensor pattern noise(SPN) used widely for camera identification cannot be directly applied to a stereoscopic image due to the stereo warping in DIBR. To solve this problem, we find out a shifted object in the stereoscopic image and relocate the object to its orignal location in the center image. Then the similarity between SPNs extracted from the stereoscopic image and the original camera is measured only for the object area. Thus we can determine the source of the camera that was used.

• 대한장애인치과학회지
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• 제12권2호
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• pp.50-54
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• 2016

Regular dental visit of disabled patients is an important strategy for maintenance of oral health because of the lack of awareness of oral care. But there is limited information about follow up period in disabled patients after dental treatment. The aim of this study was to investigate the pattern of dental visit and dental management of special care needs patients according to the types of disabilities. A total of 140 patients who received dental treatment at Seoul National University Dental Hospital from 2010 to 2012 were reviewed. Patients were divided 3 groups according to the types of disabilities (disorder of external physical function, disorder of internal organ, psychic disability). Patient's characteristic, dental treatment performed, follow up period and frequency were investigated. The mean follow up period was 28.2 months and average frequency of visit was 3.69 times per year. There was no difference in period and annual visit between 3 groups, but significantly difference in cooperation with medical hospital in affiliation. Regular check-up was the most common dental treatment in all groups. In psychic disorder group, the proportion of sedative treatment was significantly higher than other groups. The results of this study provide information necessary for treatment planning and dental management of disabled patients.

• 한국통신학회논문지
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• 제38A권9호
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• pp.750-758
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• 2013

본 논문은 type I 혼합-자동 반복 요구 (hybrid automatic repeat request: H-ARQ) 시스템에서 저밀도 패리티검사 (low-density parity-check: LDPC)로 부호화된 직교 주파수 분할 다중화 (orthogonal frequency division multiplexing: OFDM) 서브프레임의 전송 순서를 균등 결합 전력이 할당되도록 조정한 재전송 방법을 기초로 성능 개선을 채널 용량을 사용하여 분석하고, 계층 복호 방법을 적용하여 H-ARQ 재전송 기법의 수렴 속도 개선을 확인한다. 구체적으로 임의의 서브프레임 재전송 패턴에 대하여 채널 용량이 클수록 비트오류율 (bit error rate: BER) 성능도 우수하다는 사실을 검증한다. 그러므로 각 서브프레임에 대하여 균등 결합 전력 할당을 보장하는 서브프레임 재전송 패턴은 채널 용량을 최대로 하며, 임의의 다른 서브프레임 전송 순서 조정을 통한 재전송 패턴보다 성능이 우수하다. 결국 균등 결합 전력 할당을 만족하도록 서브프레임 순서를 조정하는 재전송 방법은 기존 체이스 결합 (Chase combining)보다 복호 복잡도를 증가시키지 않으면서도 주목할 만한 성능 개선을 보인다.