• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.600-602
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• 2001

본 논문은 웨이블릿 필터를 이용하여 홍채영상의 에지를 검출하고 패턴매칭 기법을 적용하여 홍채의 결함조직에 대한 위치를 추정하는 연구이다. 필터는 웨이블릿 변환을 이용한 2차원 주파수 영역의 고역통과 필터를 사용하여 홍채영상의 에지를 검출하고, 이를 표준진단패턴과 오버랩 매칭으로 결함조직을 검출한다. 실험결과 처리속도가 기존의 에지검출기법에 비해 처리속도향상과 에지검출영상의 PSNR 증가에 따라 오버랩 패턴매칭기법에 의한 인식률에서 92%로 홍채결함조직을 자동 진단시스템에 응용 가능하다.

• Korean journal of applied entomology
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• v.32 no.2
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• pp.208-217
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• 1993

Feeding behavior fo female brown planthoppers, Nilaparvata lugens Stal, was examined with an electrical recording technique using DC amplifier and through anatomical observation of stylet ovement in the rice plat with electrical recordings. There was six feeding patterns, type P, S, SB, O, X and Ph with the brown planthopper. Type P was a probing pattern during searching the proper feeding site. Type S appeared to be associated with the initial penetration and changing direction through the tissues, and from this type type SB pattern could be distinguished by the regularity of the large potential drops seen, and might be associated with penetration of the phloem sheath and/or salivation in the phloem sheath. The type O pattern shows none of the large voltage drops which were believed to occur when cell walls were being broken down and passes through a relatively thin layer of cells into an air space. The very constant waveform of the type X pattern could be seen during ingestion within the xylem bundle sheath area. The Ph pattern always followed an SB pattern and was associated with a marked negative voltage drop. When this pattern was seen, the brown planthopper might be ingested plant sap from phloem sheath area.

• The Journal of the Acoustical Society of Korea
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• v.24 no.5
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• pp.282-293
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• 2005

Sonoelastography is an ultrasound-based technique that visualizes the elastic properties of soft tissues by measuring the tissue motion generated by an externally applied vibration. In this paper. the characteristics of wave generation in soft tissues due to an acoustic vibrator are studied. The effects of modal patterns on the detectability of lesions such as tumors in senoelastography are also investigated These are accomplished by analyzing the vibration patterns calculated using theoretical equations and finite element methods in halt space, infinite plate. and finite-sized tissue. A finite-width source generates shear waves with large amplitude Propagating in specific directions. and the generation characteristics depend both on the width and frequency of the vibrator. as well as the distance from it. It is shown in a finite-sized tissue that the lesion detection in displacement images is quit dependent on the modal patterns inside tissue. In contrast it Is also found that the lesion detectability in strain images is less dependent on the modal Patterns and is much better than that in displacement images.

• Korean Journal of Social Welfare
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• v.65 no.4
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• pp.195-220
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• 2013

The purpose of this study is to discover the context and pattern of turnover social workers have experienced. To achieve this purpose, researchers collected data from in-depth interviews with seven social workers who have experiences of turnover and analysed the data using context-pattern analysis method. Research findings are composed of individual context-pattern analysis and integrated context-pattern analysis. In individual context-pattern analysis, researchers mixed time-dimension(before turnover/on the process/after turnover) and level-dimension(experienced phenomenon/meaning of experiences/context connected with phenomenon and meaning) and analysed the context of every stages and serial pattern. Also, we connected with each contexts and patterns and integrated the context-pattern of turnover. Integrated context-pattern structure is divided for four areas; organization before turnover, organization after turnover, social worker as a stakeholder of turnover, and network of social worker. Based on the results of the study, administrative recommendations were suggested in order to manage the turnover of social workers in social work fields.

• Journal of Internet of Things and Convergence
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• v.8 no.3
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• pp.47-54
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• 2022

The purpose of this study was to examine the mediating effect of family organization patterns of family resilience on the relationship between parenting stress and parenting efficacy. A total of 263 participants who have children with disabilities participated in this study by responding to the following questionnaires: Parenting Stress Index(PSI), Family Resilience Scale, Parenting Efficacy Scale. The collected data were analyzed using SPSS 25.0 and Amos 22.0. The main findings were as follows. There was a significant partial mediating effect of family organization patterns of family resilience on the relationship between parenting stress and parenting efficacy. The results of this study can provide useful information for family who have children with disabilities. suggestions for future study were discussed.

• Proceedings of the Korea Contents Association Conference
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• 2017.05a
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• pp.489-490
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• 2017

골유착은 비골조직의 삽입없이 뼈와 금속간의 직접적인 접합으로 치과 임플란트나 정형외과적 기구의 임상적 성공여부를 판가름 짓는 중요한 요소이다. 현재까지 골유착을 향상시킨다 알려진 패턴은 일부 알려져 있지만, 표면패턴이 제한적이라 기대만큼 큰 발전을 이루지 못했다. 본 연구는 특정 그루브 패턴이 조골세포의 분화를 조절할 수 있음을 보여주면, 특정 패턴에서 조골세포의 분화를 강화시킬 수 있다는 계념은 치과의 임플란트나 정형외과 의료기기에 개발에 중요한 기초를 제공할 수 있으리라 사료된다.

• The Journal of Society for e-Business Studies
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• v.14 no.4
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• pp.315-332
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• 2009

In logistic environments, a process, in that it manages the flow of materials among partners, involves more than one organization. In this regard, a logistic process, as a combined process consisting of multiple sub processes, needs to be managed with controling interaction among partners. In achieving systematic management of a logistic process, traditional Business Process Management (BPM) cannot be used for the entire flow, since it lacks the ability to manage interactions among partners. Particularly in logistic environments where RFID technologies are used, how to deal with the connection between RFID event and logistic flow has not been properly addressed. To overcome this limitation, this paper proposes a new method of managing multi-organizational logistic processes based on RFID events. We define inter-workflow pattern, and suggest ECA(Event-Condition-Action) rules for auto triggering of logistic processes. To adjust the rules to RFID events, we invent RFID-based ECA rules using complex event. A prototype system has been developed for the purpose of demonstrating the effectiveness of our approach.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.445-447
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• 2000

객체지향 프레임워크는 다수의 응용 소프트웨어 개발에 반복적으로 재사용되므로 철저한 시험이 요구될 뿐만 아니라 재사용시 확장된 프레임워크에 대해서도 추가적인 시험이 필요하다. 본 논문에서는 재사용시 다양한 형태의 객체 구조들로 개조, 확장될 수 있는 프레임워크의 가변부위에 대해 구조적 테스트 패턴들을 프레임워크의 합성 패턴들로부터 조직적으로 추출하는 방법을 기술한다. 여기서 제안된 방법은 가변부위 클래스 구조의 테스트 모델을 정형 명세화하고, 이로부터 시험에 필요한 구조적 테스트 패턴을 추출하는 방법을 제공한다.

• Proceedings of the KSPS conference
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• 1996.10a
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• pp.534-534
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• 1996

본 연구는 한국인 일본어학습자의 일본어 청취상의 난점을 한일 양언어의 음운 조직의 차이를 비교.분석함으로써, 문제의 소지와 그 해결점을 제시하는 것을 목적으로 한다. 연구방법으로서는, 초급일본어 학습자인 일어일문학 전공학생 1학년 30명을 대상으로 두재의 다른 종류의 청취태스트를 2회에 걸쳐 실시, 그 자료를 통계적으로 분석.고찰하는 방법을 취하였다. 분석내용은, 첫째 청취테스트의 결과로부터 한국인 일본어학습자의 일본어 청취에 있어서 나타나는 전형적인 오류의 패턴을 분석하고, 둘째 그 오류의 패턴의 원인을 한일 양언어의 음운조직의 상이함을 대조.분석하므로써 구조적 원인을 이론적인 측면에서 보다 명백히 밝혀냈다. 끝으로, 한국인 일본어학습자의 일본어 청취상의 난점과 문제점을 미리 예측하고 제시할 수 있는 항목들을 구체적으로 제시하여, 효과적인 일본어 교육은 물론 동시에 한국어교육에 있어서도 이 연구의 결과가 적용.응용될 수 있도록 하였다.

• Journal of the Korean Society for Nondestructive Testing
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• v.32 no.5
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• pp.469-483
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• 2012

The propagation characteristics of a mechanical wave in human soft tissue depend on its elastic properties. Investigation of these propagation characteristics is of paramount importance because it may enable us to diagnose cancer or tumor from the vibration response of the tissue. This paper investigates and compares displacement patterns generated in soft tissue due to several forms of low-frequency vibration sources placed on a surface. Among vibration sources considered are a normal load, tangential load, and antiplane shear load. We derive analytical expressions for displacements in viscoelastic single layers, and calculate displacement patterns in half space and infinite plate type tissue. Also, we simulate the vibration response of a finite-sized tissue using finite element method. The effects of the type of stress, the size and frequency of vibration sources, and medium boundaries on displacement patterns are discussed.