• 제목/요약/키워드: duality.

검색결과 528건 처리시간 0.021초

NCV-|v1 >라이브러리를 이용한 Mixed-Polarity MCT 게이트 실현 (Realizing Mixed-Polarity MCT gates using NCV-|v1 > Library)

  • 박동영;정연만
    • 한국전자통신학회논문지
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    • 제11권1호
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    • pp.29-36
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    • 2016
  • 최근 들어 양자 논리 회로의 저비용 실현 가능성을 가진 $NCV-{\mid}v_1$ >라이브러리라 불리는 새로운 종류의 양자 게이트가 주목을 받고 있다. $NCV-{\mid}v_1$ > MCT 게이트는 입력부에 타깃 입력을 제어하는 $CV-{\mid}v_1$ > 게이트와 정크 비트 제거를 위한 수반 게이트의 종속 AND 구조를 갖는다. 본 논문은 $NCV-{\mid}v_1$ >라이브러리에 대응하는 대칭적 쌍대 특성을 갖는 $NCV^{\dag}-{\mid}v_1$ >라이브러리라 불리는 새로운 게이트를 제안한다. 새로운 $NCV^{\dag}-{\mid}v_1$ >라이브러리는 특정 조건에서 OR 논리로 작동한다. $NCV-{\mid}v_1$ >라이브러리와 $NCV^{\dag}-{\mid}v_1$ >라이브러리를 함께 사용하면 MPMCT 게이트와 SOP 및 POS형 양자논리 회로의 저비용 실현이 가능하며, 순방향과 역방향 연산에 대한 상이한 연산 속성 때문에 듀얼 게이트 성질이 기대된다.

다변량 해석기법을 이용한 인천연안해역의 수질평가 (The Evaluation of Water Quality in Coastal Sea of Incheon Using a Multivariate Analysis)

  • 김종구
    • 한국환경과학회지
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    • 제15권11호
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    • pp.1017-1025
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    • 2006
  • This study was conducted to evaluate characteristic of water duality in coastal sea of Incheon using a multivariate analysis. The analysis data in coastal sea of Incheon was aquired by the NFRDI data which was surveyed from March 1997 to November 2003. Eleven water quality parameters were determined on each survey The results were summarized as follow : Water quality in Incheon coastal sea could be explained up to 64.62% by three factors which were included in loading of fresh water and nutrients by the land(36.98%), seasonal variation(16.19%), and internal metabolism (11.24%). The results of time series analysis by factor score, in case of factor 1, station 1 influenced by Han river was shown to high factor score and station 3 located by outer sea was shown to low factor score. In case of factor 2, station 1 was appeared to high variation and station 3 was appeared to low variation. The result of cluster analysis by station was classified into three group that has different water quality characteristics. Especially, station 1 which affected by Han river and station 4 which affected by sewage treatment plant was appeared to considerable water quality characteristics against other station. In yearly cluster analysis, three group was classified and water quality in 2003 years due to high precipitation was different to another year. It could be suggested from these results that it is important to control discharge of fresh water by Han rivet and sewage treatment plant for water quality management of coastal sea of Incheon.

ROI를 이용한 웨이브렛 기반 디지털 영상의 워터마킹 기법 (A Wavelet-Based Watermarking Scheme of Digital Image Using ROI Method)

  • 김태중;홍충선;성지현;황재호;이대영
    • 정보처리학회논문지B
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    • 제11B권3호
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    • pp.289-296
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    • 2004
  • 일반적인 워터마킹 기술들은 영상의 특성을 고려하지 않은 채 신체 책인 영상에 워터마크를 삽입하는 경우가 많다 본 논문에서는 워터마킹 알고리즘을 웨이브렛을 기반으로 구현을 하였으며, 견고한 워터마크 삽입을 위해 Multi-Threshold Watermark Coding(MTWC)의 원리에 기초하여 Region of Interest(ROI)라고 불리우는 영상의 영역에 큰 계수를 찾아 워터마크를 삽입하게 된다. 이때 Human Visual System(HVS)을 이용하여 견고성과 비가시성의 향상을 도모하였다. 워터마크 삽입대역은 중주파 대역에 삽입을 하게 되는데 중주파 대역에 삽입한 워터마크는 어떠한 영상 처리과정 후에도 높은 비율의 추출을 보였으며, 워터마크가 삽입된 영상의 왜곡정도도 다른 대역보다 상대적으로 적게 나타나므로 중주파 대역에 워터마크를 삽입하였다. 워터마크는 의사 랜덤 시퀀스(Pseudo Random Sequence)로 구성되어 있고 워터마크의 검출은 Cox의 유사도 측정식을 이용하여 워터마크의 삽입여부를 판단한다

부부관계에 관한 비합리적 신념이 결혼의 질에 미치는 영향 (A Study on Irrational Relationship Beliefs and Marital Quality of Married Men and Women)

  • 강유진;옥선화
    • 가정과삶의질연구
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    • 제23권6호
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    • pp.155-165
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    • 2005
  • The pupose of this study is to investigate the effect of irrational relationship beliefs on marital duality of married men and women and to find out what sub-scales of irrational relationship beliefs have effect on marital quality. The data were collected from 301 married men and 302 married women living with their unmarried children in the metropolitan area around Seoul. All the respondents were asked to answer the self-reporting questionnaires. The analysis includes frequencies, means, 1-test, one-way ANOVA, Duncan test, and hierarchical multiple regression models. the major findings are as follows. 1) The level of irrational relationship beliefs is below the average, and the married women show slightly higher level of irrational relationship beliefs than the men. On the other hand, the level of marital quality of the married men and women is slightly above the average with no difference between the men and the women. 2) In the case of the married men, the sub-scales of irrational relationship beliefs that have significantly negative effect on the marital quality are 'partners cannot change', 'disagreement is destructive,' and 'sexes are different' 3) In the case of the married women, the sub-scales of irrational relationship beliefs that have significantly negative effect on the marital quality are 'partners cannot change' and 'disagreement is destructive' According to the result of this study, irrational relationship beliefs have negative effect on marital quality. However, the effect of each sub-scales shows slight differences in gender. The finding of this study suggests that a promoting marital promoting marital qualify by reducing the irrational relationship beliefs should take the gender differences into consideration.

소프트웨어 프로세스 개선 노력이 국내 SI 업체의 경쟁우위에 미치는 영향에 관한 연구 (A Study on Effects of Software Process Improvement for Competitive Advantage)

  • 김성희;이경아;이주헌
    • Journal of Information Technology Applications and Management
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    • 제9권3호
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    • pp.113-127
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    • 2002
  • The effort for software process improvement is lately surging its interest though it does not satisfy both developer and receiver In terms of low productivity, quality, delay and increasing cost. According to current research, software process improvement contributes to improvement of productivity, its Duality, reduction of development time and cost, and the prediction of the time limit for delivery, which means software process improvement affects competitive advantage among developers. The latest research is whether the investment for information technology substantially had effect on improvement of productivity. That is, software process improvement and maturity of software industries has influence upon economic efficiency and as a result, it plays an important role in whole industries. This research is that how does software process improvement using CMM (Capability Maturity Model) and SPICE (Software Process Improvement and Capability dEtermination) have a effect on factors of software engineering, and how does it have influence upon competitive advantage among SI firms. For this research, reusability, customizability, participation, and review & inspection are set to independent variable and process flexibility and process predictability are set to mediate Variable. Finally, competitive advantage among SI firms Is set to dependent variable. The targets for survey are laborers who work for SI firms. The result of this research is as follows: 1 ) Reusability, Customizability and participation is not rejected but review and Inspection is rejected in process flexibility which has significant level 0.05. 2) Reusability, Customizability and participation is not rejected but review and inspection Is rejected in process predictability which has significant level 0.05. 3) Process flexibility is not rejected and process predictability Is rejected in the competitive advantage of 51 industries which has significant level 0.05

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대구시 중구의 옥상녹화를 통한 환경 및 경제적 편익 분석 (An Analysis of Environmental and Economic Benefits of Green Roof in Jung-Gu, Daegu)

  • 김수봉;장중근
    • 한국환경과학회지
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    • 제16권5호
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    • pp.603-610
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    • 2007
  • Recent urban sprawl has destroyed various kinds of green space in tile city. It has affected duality of people's life in the city, as well as urban ecosystem. Recent study shows the possibilities of roofs as green spaces in urban central site where the land costs are generally high. This research focuses on Jung-Gu district in Daegu Metropolitan city as a study area and calculates possible area of green roof using 2002 Autocad program based on aerial photographs and land registration maps. And the purpose of this research is to analyze environmental and economic effects of green roof. The environmental effects are as follows. It is expected that $91,106m^2$ green spaces, 12.13 % of study site, will be added if green roof is performed in the study site. It is assumed that the expanded areas could reduce the highest temperature to $0.5-1.0^{\circ}C$ during the summer in terms of environmental effect. And the following shows the economic effects. If green roof and greening urban central site are created as a same size of $91,106m^2$, it will be expected that the costs of green roof will be much more in-expensive than about 98 billions won. It will be also found that the expense of cooling energy can be saved out about 8 millions won per day in summer, if grass planting is accomplished on the possible areas of green roof in the study site. Therefore, it is desirable to take legal supports such as enacting regulations to activate green roof for more environmental and economic effects. For instance, green roof for public institutions, school and model area selection are desirable method to publicize the effect of greening program for citizen's participation.

조선후기 풍속화에 표현된 여성복식의 해학미 (Humors in Female Costumes Depicted in Genre Paintings in the Late Joseon Dynasty)

  • 권하진;김민자
    • 복식
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    • 제60권2호
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    • pp.35-50
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    • 2010
  • In this dissertation, the analysis of the study of female customs from late Joseon Dynasty and their genre painting to research humors and its aesthetic senses in that certain era. The purpose of the genre paintings is to look at general populations in an objective point of view and endeavor better value of public life style to embody clear understandings of humanity. The artists such as Hong-Do Kim and Youn-Bok Shin expressed their arts based on reasonable reality with sarcastic but humorous and creative ways to criticize the society's problems with clear statements. Therefore, the formative characters are realism, exaggeration and coloring of the whole arts that represents as innovative and original genre of it's time. Hong-Do Kim and Youn-Bok Shin expressed the women in society as open minded with versatile and refined looks in their paintings as the reality was repressed and closed mind for women figures in late Joseon Dynasty. The female customs in the paintings has both suppression and expression in their dresses and exaggerated shapes of accessories and the use of color were also found. All of these elements has the aesthetic values of satirized eroticism, the hint of next evolution of the late Joseon Era under the conservative disposition of social characters and freedom of expression of playfulness. These elements were new developments and a step forward of female 'sex' and expression of satirized eroticism. The exaggerated and distorted forms and accessories demonstrates unbalanced and asymmetrical elements in humorous characters and they include spontaneity. Also, using the five traditional color schemes of Korean art displays humor in playfulness of an art with splendid and purity, duality of positiveness and artless, smart and elegance looks.

미혼모의 입양결정 과정에 관한 연구 -해석학적 근거이론 방법 접근- (A Study of Adoption Decision Process of Non-married Mothers -Hermeneutic Grounded Theory Methodology Approach-)

  • 임해영;이혁구
    • 한국사회복지학
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    • 제65권3호
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    • pp.53-78
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    • 2013
  • 이 연구는 미혼모가 경험한 입양결정 과정의 전반적 의미를 이해하고자 Rennie가 제안한 해석학적 근거이론의 방법을 활용하였다. 분석 결과, 191개 의미단위, 46개 하위범주, 11개 해석학적 범주가 구성되었고, 연구 참여자들의 입양결정 과정을 관통하는 핵심범주는 '모성의 밀어냄과 끌어안음의 이중성 속에 새겨진 흔적안고 살아가기'로 상정되었다. 미혼모들의 입양결정 과정은 임신 인지, 현실 회피, 입양 탐색, 혼란 증폭, 결단, 합리화 혹은 상실의 단계로 나타났다. 이러한 연구결과를 토대로 미혼모의 입양결정 과정은 모성 실현의 또 다른 방식이 될 수도 있다는 점, 이들의 삶의 질을 제고할 수 있는 심리사회적 지지프로그램의 필요성을 제안하였다.

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Bayesian Model Selection in the Unbalanced Random Effect Model

  • Kim, Dal-Ho;Kang, Sang-Gil;Lee, Woo-Dong
    • Journal of the Korean Data and Information Science Society
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    • 제15권4호
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    • pp.743-752
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    • 2004
  • In this paper, we develop the Bayesian model selection procedure using the reference prior for comparing two nested model such as the independent and intraclass models using the distance or divergence between the two as the basis of comparison. A suitable criterion for this is the power divergence measure as introduced by Cressie and Read(1984). Such a measure includes the Kullback -Liebler divergence measures and the Hellinger divergence measure as special cases. For this problem, the power divergence measure turns out to be a function solely of $\rho$, the intraclass correlation coefficient. Also, this function is convex, and the minimum is attained at $\rho=0$. We use reference prior for $\rho$. Due to the duality between hypothesis tests and set estimation, the hypothesis testing problem can also be solved by solving a corresponding set estimation problem. The present paper develops Bayesian method based on the Kullback-Liebler and Hellinger divergence measures, rejecting $H_0:\rho=0$ when the specified divergence measure exceeds some number d. This number d is so chosen that the resulting credible interval for the divergence measure has specified coverage probability $1-{\alpha}$. The length of such an interval is compared with the equal two-tailed credible interval and the HPD credible interval for $\rho$ with the same coverage probability which can also be inverted into acceptance regions of $H_0:\rho=0$. Example is considered where the HPD interval based on the one-at- a-time reference prior turns out to be the shortest credible interval having the same coverage probability.

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한국어판 Skindex-29를 통해 본 피부과 환자의 삶의 질 (Quality of Life in Patients with Skin Disease)

  • 김민희;김자혜;윤화정;고우신
    • 대한한의학회지
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    • 제26권3호
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    • pp.43-54
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    • 2005
  • Backgrounds : Many people think that ski disease has littel influence on the quality of life in patient, but various studios show that skin disease may produce a range of impacts on QOL. Nevertheless, there is much to be learned about the association between the duality of life and skin disease in the area of Oriental dermatology. Objectives : This study was conducted fe investigate the impact of the various skin diseases on QOL and explore prognostic factors that influence outcomes. Methods : 103 patients were recruited who filled out more than $90\%$ of the skindex-29 questionnaire. The function of sum scores and three domain scores with each skin disease were investigated, as well as the correlation of each domain scores. Results : The disease with the lowest qualify of life was atopic dermatitis. followed by eczematous dermatitis, seborrheic dermatitis and acne vulgaris in order. The sum scales showed significant correlation with three domain scores in atopic dermatitis, urticaria, allergodermia, acne vulgaris, psoriasis and seborrheic dermatitis, The correlation of all three domain scores was significant in atopic dermatitis, urticaria, allergodermia, and psoriasis. Conclusions : Tn this study, skin disease affects the quality of life in physical, social, and psychological factors- Thus, we must consider the quality of life as well as clinical severity inpatients with skin disease.

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