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워크플로우 시스템에서 작업할당 정책을 위한 메타 모델링 (A Meta-model Approach for Work Assignment Policy in a Workflow System)

  • 이승진;우치수;이형원
    • 한국전자거래학회지
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    • 제12권3호
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    • pp.235-249
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    • 2007
  • 워크플로우 시스템은 긴 주기의 프로세스의 실행을 통제하는 소프트웨어 시스템이다. 조직의 구성원들이 프로세스의 실행을 담당하는데, 프로세스의 특정 부분을 누가 수행하는가를 결정하는 작업할당 정책이 워크플로우 시스템에 설계 및 구현되어 있어야한다. 여러 조직들의 작업할당에는 매우 다양한 문제들이 있을 수 있어서, 다양한 여러 문제들을 다 포괄하는 하나의 모델을 고안하는 것은 가능하지 않을 것이다. 본 논문에서는 워크플로우 시스템에서의 작업할당 정책에 대한 보편적인 설계 방법으로서, 각 조직에 주어진 임의의 고려할 사항들에서부터 작업할당 정책들을 정의하기 위한 메타 모델 기반 접근 방법을 제시한다.

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고이득, 저잡음지수를 갖는 캐스코드 HBT-MMIC 증폭기 설계 (Design of Cascode HBT-MMIC Amplifier with High Cain and Low Noise Figure)

  • 이영철
    • 한국정보통신학회논문지
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    • 제9권3호
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    • pp.647-653
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    • 2005
  • 본 논문에서는 캐스코드 결합 HBT의 이미터와 베이스단에 인덕터를 설치하여 저잡음과 고이득 특성을 동시에 나타내는 MMIC-LNA 증폭기를 설계하였다. 제작된 MMIC 증폭단은 3mA, 2.7V의 바이어스 조건에서 이득은 3.7GHz에서 약 19dB, 잡음지수는 2.7dB를 보였으며, 35dBc의 이미지시호 제거 특성을 보였다. 저 잡음과 고 이득 특성을 갖는 캐스코드 MMIC 증폭단을 이용하여 마이크로파 수신기의 전단부의 설계가 가능함을 보였으며 이미지 제거 필터의 성능을 만족시키기 위하여 능동필터와 함께 설계할 경우 RF 수신 전단부의 완전한 MMIC 설계가 가능함을 알 수 있었다.

도시재생 사례분석을 통한 커뮤니티 활성화 정책에 관한 연구 -영국·독일·한국의 도시재생 사례를 중심으로- (A Study on Community Revitalization Policy through Analysis of Urban Regeneration Cases -Focussing on the Cases of the Urban Regeneration in the UK, Germany and Korea-)

  • 장용일;김창성
    • KIEAE Journal
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    • 제16권5호
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    • pp.93-101
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    • 2016
  • Purpose : This research aims to present policy plans for community vitality in the field of the urban regeneration project by analyzing aspects for vitality via domestic and abroad city policies and cases. Methods: The research method works as follows: The first step is 1) to introduce the concept of evaluation matrix to analyze cases of urban generation, 2) to apply to the proposed evaluation matrix, and then 3) to analyze communities' decline diagnosis, counterstrategies, and promotion process. And the second step is to draw features and evaluation of cases and to present the policy plan for communities' vitality with the urban regeneration project in South Korea via a comprehensive analysis. Result : This research confirmed the fact that when different sectors is expanded toward a mutual cooperation, communities are vitalized, having a mutual effect on other related sectors by taking a part in the community positively. Especially in the base of each characteristic and estimation, when various activities and socio-economic programs with residents are promoted in the integrated system, communities are successful. Through this results we present four policy plans for community vitality of the urban regeneration project in South Korea.

화병 임상진료지침 개발 연구 (1) - 목적과 개발 전략 및 절차 - (Development of Clinical Practice Guideline for Hwabyung (1) - Purpose, Development Strategy and Procedure -)

  • 김종우;정선용;조성훈;황의완;김보경
    • 동의신경정신과학회지
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    • 제20권2호
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    • pp.143-152
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    • 2009
  • Objectives : Hwabyung is one of well-known mental health problems like depression in Korea and it's concept is generated from oriental medicine. We suggest that clinical practice guideline should reflect the Hwabyung's characteristics, clinical environment and Oriental medical doctor's need. Methods : We use the general development method of clinical practice guideline and also apply the oriental medicine's properties. Results : We need to refer to the western psychiatric field, especially the clinical guideline of depression. And we should base on the clinical survey and trial with the selected core subject considering oriental medicine's character. Conclusions : From this development, we expect the application of proper clinical decision by medical team, the objectification of oriental medicine, and the improvement of medical quality in the clinical field of oriental medicine.

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울산시 상수원수에서의 오존분해 특성 및 의약물질 분해 거동 연구 (Characteristic behaviors of ozone decomposition and oxidation of pharmaceuticals during ozonation of surface waters in Ulsan)

  • 이혜진;이홍신;이창하
    • 상하수도학회지
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    • 제27권1호
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    • pp.39-47
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    • 2013
  • This study demonstrates the oxidative degradation of pharmaceutical compounds during ozonation of surface waters in Ulsan. Diclofenac, carbamazepine, bezafibrate, and ibuprofen were selected as surrogate pharmaceutical compounds, and ozonation experiments were performed using raw waters collected from the Sayeon Dam and the Hoeya Dam in Ulsan. Diclofenac and carbamazepine which have high reactivity with molecular ozone showed higher removal efficiencies than bezafibrate and ibuprofen during ozonation. The addition of tert-butanol, a hydroxyl radical scavenger, increased the removal efficiencies of diclofenac and carbamazepine by increasing the ozone exposure. However, the oxidation of bezafibrate and ibuprofen was inhibited by the presence of tert-butanol due to the suppression of the exposure to hydroxyl radical. The elimination of the selected pharmaceuticals could be successfully predicted by the kinetic model base on the $R_{ct}$ concept. Depending on the experimental condition, $R_{ct}$ values were determined to be $(1.54{\sim}3.32){\times}10^{-7}$ and $(1.19{\sim}3.04){\times}10^{-7}$ for the Sayeon Dam and the Hoeya Dam waters, respectively. Relatively high $R_{ct}$ values indicate that the conversion of $O_3$ into $^{\cdot}OH$ is more pronounced for surface waters in Ulsan compared to other water sources.

Prospects of Consumer Life Information

  • Koo, In-Sook
    • 패션비즈니스
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    • 제7권6호
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    • pp.21-31
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    • 2003
  • The CLI(Consumer Life Information) is a new study to unite and create new values recognizing the importance of knowledge and information in information-oriented society based on domestic science and digital technology. The objective of this research is to define academic identity of consuming science and CLI, to analyze the theory, styles, manners, psychology and the concept of consumption, which is the base of consuming life, and to present the direction of CLI with tasks and three major axises of CLI. Nowadays, international order demands new paradigms from human beings. Especially, vision and creation of the values are settled as methodological ways considering the economic power. The CLI should be on the same horizon adjusting social change of pointing values and quality in consuming patterns of diversity and variety. Therefore, I would suggest the ways for the CLI to head for as follows. First, it is to perceive the 3 major Axises & Task of CLI. Second, it is to develope service (experiencing goods) and goods that can lead consuming lives. Third, it is to study merchandising strategy, to create new signs and symbols of goods, and to collaborate of R & D(reseach and developement) and Business. Fourth, it is to head for globalization. Consequantly, this study will be helpful to establish the theory of relationship between producer and consumer in fashion business included research and developments of qualitative goods.

인간의 생득적 능력에 기반한 이미지의 의미정보 추출방법 (A Concept Extraction Method for Image Based on Human's Natural Abilities)

  • 박형근;이일병
    • 한국정보과학회:학술대회논문집
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    • 한국정보과학회 2011년도 한국컴퓨터종합학술대회논문집 Vol.38 No.1(C)
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    • pp.307-310
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    • 2011
  • 최근 멀티미디어 데이터의 급속한 증가는 그를 대상으로 하는 다양한 컴퓨팅 기술의 발전을 가져왔다. 이러한 기술이 인간과의 상호 작용에서 그 양적 범위와 질적 깊이를 더해감에 따라, 멀티미디어 데이터 특히 그 중 가장 대표적이라 할 수 있는 이미지 데이터를 의미적으로 이해할 수 있는 방법의 필요성이 대두되고 있다. 이미지의 의미를 이해하기 위해 저수준(low level)의 시각 정보만을 이용하는 경우 인간과의 상호 작용에서 의미 격차(conceptual gap) 문제가 발생할 수 있다. 이미지 객체의 시각 정보들을 가공해서 온톨로지(ontology)와 같은 형태의 지식 베이스(knowledge base)와 연동하여 보다 고수준의 의미를 부여하는 경우에는 해당 도메인을 벗어난 새로운 환경에 대해 적응력과 강인함이 떨어진다. 이러한 문제를 근본적으로 해결하기 위해서는 지식 베이스가 없는 상태에서 이미지 데이터의 형태로 주어진 대상 객체로부터 의미를 부여할 수 있는 정보들을 추출해, 구조적으로 지식 베이스를 형성해 나가고 이를 토대로 대상 이미지 객체의 의미를 이해할 수 있는 시스템이 필요하다. 본 논문에서는 발달 심리학 이론들을 바탕으로 시각과 관련된 인간의 생득적 능력을 찾고, 이를 기반으로 우선 주어진 이미지 객체로부터 의미 정보를 효과적으로 추출할 수 있는 방법을 제안한다.

Cognitive Conflict and Causal Attributions to Successful Conceptual Change in Physics Learning

  • Kim, Yeoun-Soo;Kwon, Jae-Sool
    • 한국과학교육학회지
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    • 제24권4호
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    • pp.687-708
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    • 2004
  • The purpose of this study is to investigate the relationships between cognitive conflict and students' causal attributions and to find out what kinds of attributions affect successful resolution of cognitive conflict in learning physics. Twenty-nine college students who attended a base general physics course took an attribution test and a conceptual pretest related to action and reaction concept. Of these, twenty students who revealed alternative conceptions were selected. They were confronted with a discrepant demonstration and took part in the cognitive conflict level test, a posttest, and delayed posttest. Those students who experienced high levels of cognitive conflict were selected and interviewed to find out what kinds of attributions affect resolving the conflict. When confronted with the discrepant event, the students who attributed success outcomes to "effort" experienced higher levels of cognitive conflict than those to "task difficulty." However, those students who revealed high levels of cognitive conflict and attributed success outcomes to effort did not always produce conceptual change. They had different perspectives on effort and conducted different effort activities to resolve the cognitive conflict. In addition, these effort activities appeared to include their motivational beliefs, metacognitive and volitional strategies. The results of this study indicate that in order for the conflicts to lead to change, students need to have the perspective on effort implying the use of the self-regulated learning strategy and to conduct effort activities based on them. Beyond cold conceptual change, this article suggests that there is a management strategy of cognitive conflict in the classroom context.

쇠퇴지역 내 신축형 서포티브주택의 특성 연구 - 미국 뉴욕시 '더 브룩' 사례를 중심으로 - (Field Visit Study of Newly Constructed Supportive Housing 'The Brook' in Decayed Area of New York, USA)

  • 이연숙;박재현;치 팅
    • KIEAE Journal
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    • 제16권2호
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    • pp.43-52
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    • 2016
  • In the 21st century, Korea had radical economic development with accelerating urban sprawl, and following declination with social polarization. City declination makes socially vulnerable people unstable and increase homelessness. The projects revitalizing decayed area utilize local idle spaces to build new facility with creative supportive programs. The purpose of this study is to analyze inclusive characteristics of a supportive housing 'The Brook'. A field visit walk through observation and in-depth interview were utilized as research methods. The information of a representative supportive housing field will promote understanding the concept, and create base for further research. As results, state and knowhow of information concerning housing first policy, active government investment, space planning, management, social integration, service providing, architecture and so on offered to facilitate inclusive insights. In conclusion, the characteristics of supportive housing were realistically analyzed through a field research. This research is significant to introduce initially the effective supportive housing which has been practiced for 30 years in USA to that needs alternatives for the socially vulnerable in Korea.

교육용 사이트 CRM 평가 모델 설계 (A Design of Customer Relationship Management Evaluation Model for Educational Site)

  • 오성균
    • 한국컴퓨터정보학회논문지
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    • 제8권1호
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    • pp.76-83
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    • 2003
  • 고객 충성도 향상을 통해 이익 증대를 도모하는 CRM 기술은 기업의 중요 전략중 하나인 동시에, 교육용 사이트의 CRM 특성 평가는 CRM 적용 활성화를 위하여 필수적 항목이라 할 수 있다 따라서 본 연구에서는 CRM 기술의 정의 및 특성. 웹사이트 평가 동향을 분석한 후 최근의 정량적 전역 평가 방법론인 Web-site QEM을 이용하여 CRM 특성 평가 모델을 설계한다. 이에 현재 운영 중인 교육용 사이트의 CRM 특성 서비스 내용을 비교하고, 학생 사용자 관점에서 고객 충성도와 고객 만족도를 향상시키기 위한 CRM특성에 대한 평가 기준과 정량적 모델을 제안한다. 제안된 평가 모델의 일부를 운영중인 교육용 사이트에 적용하여 결과 값을 제시한다.

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