• 한국콘텐츠학회논문지
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• 제11권3호
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• pp.36-47
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• 2011

현재의 소프트웨어 개발의 주요 쟁점은 재사용 가능한 유연한 소프트웨어의 개발이다. 이미 많은 소프트웨어의 성공적인 개발 경험은 소프트웨어의 환경에 따라 또는 구현하려는 모듈의 성격에 따라 공통된 모습을 패턴으로 추출하여 제시되고 있다. 경험된 패턴을 개발하고자 하는 목적에 맞게 선택하여 이를 재사용하면 빠르고 정확하게 소프트웨어를 개발할 수 있다. 이러한 개발은 성공과 실패에 따라 다른 새로운 경험이 되고 다시 재사용 된다. 소프트웨어 개발에 있어서 디자인 패턴의 적용은 선택이 아닌 필수 사항이 되었다. 본 논문에서는 재사용 가능한 소프트웨어 개발을 위해 분산통신 서비스 기술 중 하나인 닷넷 리모팅 기술을 사용하여 디자인 패턴을 적용한 공통 프레임워크를 설계하고 구현한다.

• Communications for Statistical Applications and Methods
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• 제22권6호
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• pp.589-598
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• 2015

In longitudinal studies missing data are common and require a complicated analysis. There are two popular modeling frameworks, pattern mixture model (PMM) and selection models (SM) to analyze the missing data. We focus on the PMM and we also propose Bayesian pattern mixture models using generalized linear mixed models (GLMMs) for longitudinal binary data. Sensitivity analysis is used under the missing not at random assumption.

• 한국통신학회논문지
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• 제25권3B호
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• pp.557-564
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• 2000

This paper presents a watermarking algorithm for embedding visually recognizable pattern (Mark, Logo, Symbol, stamping or signature) into the image. first, the color image(RGB model)is transformed in YCbCr model and then the Y component is transformed into 3-level wavelet transform. Next, the values are assembled with pattern watermark. PN(pseudo noise) code at spread spectrum communication method and mutilevel watermark weights. This values are inserted into discrete wavelet domain. In our scheme, new calculating method is designed to calculate wavelet transform with integer value in considering the quantization error. and we used the color conversion with fixed-point arithmetic to be easy to make the hardware hereafter. Also, we made the new solution using mutilevel threshold to robust to common signal distortions and malicious attack, and to enhance quality of image in considering the human visual system. the experimental results showed that the proposed watermarking algorithm was superior to other similar water marking algorithm. We showed what it was robust to common signal processing and geometric transform such as brightness. contrast, filtering. scaling. JPEG lossy compression and geometric deformation.

• 한국의류산업학회지
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• 제6권2호
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• pp.169-176
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• 2004

The clouds-shaped pattern is originated from Taoism, Buddhism, and Confucianism. It stands for good-luck, longevity and productivity. It has been used on its own or with other patterns since the ancient times. It also has various forms. It particularly was used more frequently than any other patterns as a typical good-luck pattern, representing auspiciousness, divine authority, and so on in Chosun dynasty. The pattern, according to its component parts, is classified as individual type and compound type, which is mixed with other patterns such as treasure pattern, plant pattern, letter pattern, or animal pattern. For both individual type and compound type, swastika-shaped cloud pattern was mostly used. For compound type, the pattern compounded of treasure pattern was extraordinarily used a lot. In terms of the arrangement, the most common arrangement methods were brick-shaped arrangement and dense type arrangement, the arrangement method that spreads the patterns all over the surface. Among the fabrics with clouds-shaped pattern, satin damask fabrics had the majority. Clouds-shaped pattern was used a lot in men's Po(coat), such as Dahnryoung, Jiknyoung, Chollik, etc. rather than in women's clothes. It was a typical pattern used in Dahnryoung, an official uniform that represented people in the highest class in Chosun dynasty. The divine power symbol of this pattern indicated the authority and dignity that the upper class people could have.

• 한국분무공학회지
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• 제21권3호
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• pp.155-161
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• 2016

Injected fuel pressure waves of a common rail injector with various current profiles supplied to the injecor were measured using Bosch method. In order to drive the common rail injector, the current in the solenoid should be controlled using what is known as a peak and hold pattern, which consists of a high current level with a short time duration (peak) in the first step and a low current level with a long time duration (hold) in the subsequent step. The current profile can be shaped by swithcing an injector driving power source with the peak and hold waves. The capture, compare and PWM (CCP) pin in the microprocessor was used to generate the combined peak and hold waves. The PWM square wave generated from the CCP pin has a duty ratio of 100% for the peak current and 10% or 30% for the hold pattern. Five patterns of the current profile were generated by combining the peak and hold wave. The common rail pressure is controlled at 75, 100, and 130 MPa. As the fuel rail pressure increases, the variations of the measured fuel injection pressure wave according to the current profiles decrease.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1996년도 한국자동제어학술회의논문집(국내학술편); 포항공과대학교, 포항; 24-26 Oct. 1996
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• pp.1241-1244
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• 1996

This paper present a performance evaluation method for Timed Place Petri Nets modeled by Live-and-Bounded Circuits (LB-circuits) through a bottom-up approach. The method can handle the case for the nets having common resources(CR). The target system is divided into the sub-systems by disconnecting the common Transition-Transition-Path(TTP) or Place-Place-Path (PPP) between sub-systems. The common PPP pattern is classified into Parallel Common Resource (PCR) and Sequential Common Resource (SCR) in detail for handling common resources. We evaluate the performance of each divided sub-system, and calculate the sub-systems affect on the performance of the whole system. The facts are generalized as a theorem. The developed theorem are applied into the performance evaluation of an automated assembly system shown in an example. All the results are verified by simulation.

• 대한한의학회지
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• 제30권2호
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• pp.145-151
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• 2009

Objectives: The purpose of this study was to investigate distribution of pattern identification by age in stroke patients. Methods: From 1 April, 2007 to 29 September, 2008, 903 patients within a month after onset of stroke were included. Stroke patients were interviewed by oriental medicine doctors who used standard operation procedures for this study. A questionnaire was completed by a question-and-answer form between patients and doctors after explanation of details to patients and patients' agreement given. Results: Distributions of pattern identification in stroke patients differed by age groups. Dampness-Phlegm pattern was more common in the younger group aged under 80 years, while Yin-Deficiency pattern was more common in the older group aged over 80 years. Conclusions: In this study, we found a character of distribution of pattern identification by age in stroke patients within one month after stroke onset. We have concluded that these differences should be considered in the management and treatment of stroke patients.

• 품질경영학회지
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• 제8권1호
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• pp.8-15
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• 1980

There are many methods of pattern recognition. In this paper we assume that the responses of independent m groups are described by p-variate normal random variables with distinct mean vectors and a common covariance matrix. Under the assumption we give pattern recognition of m groups by means of canonical discrininant analysis and it's computer program. An example is presented.

• 복식
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• 제11권
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• pp.5-30
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• 1987

This thesis attempts to contribute to analyze the methods of pattern grading which is in common fashion in America and Japan and to make the foundation for the basic technique of pattern grading fitting to Korean body shape. There are two types in pattern grading. The results are as follows: 1) The pattern grading according to body shape contains A, B, C, D, F, and G. A is suitable for the bulging part of a body and F is the most suitable for the general part of a body. 2) The pattern grading not depending on body shape has no relation to the quantity of grading in the size of a body but includes silhouettes or design details. The standards of its methods are as follows: a) by the part of body b) by the balance of whole pattern c) by adjusting to the mutual balance of besign details.

• International Journal of Advanced Culture Technology
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• 제9권2호
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• pp.130-135
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• 2021

Because of the COVID-19 epidemic, many countries have made the obligation to wear masks normal. Wearing masks in public places has become a must. At present, wearing a mask to participate in sports makes it very common. People seek to gain health through exercise but ignore the potential respirato-ry health threat. That is, wearing a mask will cause a decrease in oxygen content in the body. This neg-ative impact becomes more prominent as the wear-ing time and oxygen consumption increase. To pro-tect people from viruses and enjoy a healthy life. This paper proposes a breathing pattern that im-proves blood oxygen saturation while wearing a jogging mask and walking. Namely, shouting breathing pattern. Use a pulse oximeter to measure the blood oxygen saturation of running at different speeds and compare the normal breathing pattern and the shouting breathing pattern. The results show that the shouting breathing pattern has a sig-nificant improvement in the blood oxygen satura-tion of low-speed walking and medium-speed jog-ging.