• 제목/요약/키워드: Structured Methodology

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최소 지연시간을 갖는 CMOS buffer 회로의 설계 기법 (the Design Methodology of Minimum-delay CMOS Buffer Circuits)

  • 강인엽;송민규;이병호;김원찬
    • 대한전자공학회논문지
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    • 제25권5호
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    • pp.509-521
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    • 1988
  • In the designs of integrated circuits, the buffer circuits used for driving a large capacitive load from minimum-structured logic circuit outputs have important effects upon system throughputs. Therefore it is important to optimize the buffer circuits. In this paper, the principle of designing CMOS buffer circuits which have the minimum delay and drive the given capacitive load is discussed. That is, the effects of load capacitance upon rise time, fall time, and delay of the CMOS inverter and the effects of parasitic capacitances are finely analysed to calculate the requested minimum-delay CMOS buffer condition. This is different from the method by C.A. Mead et. al.[2.3.4.]which deals with passive-load-nMOS buffers. Large channel width MOS transistor stages are necessary to drive a large capacitive load. The effects of polysilicon gate resistances of such large stages upon delay are also analysed.And, the area of buffer circuits designed by the proposed method is smaller than that of buffer circuits designed by C.A. Mead's method.

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부인암 여성의 성생활에 대한 서술적 연구 (Descriptive Study on Sexuality for Women with Gynecological Cancer)

  • 노주희;박영숙
    • 여성건강간호학회지
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    • 제18권1호
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    • pp.17-27
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    • 2012
  • Purpose: This study aimed to identify sexuality for women with gynecological cancer. Methods: A total of seven women with gynecological cancer agreed to participate in this study. The data were collected utilizing in-depth semi-structured interviews style. A descriptive study design was used in this study. The interviews were analyzed using inductive content analysis methodology. Results: Three themes identified were: 'women with gynecological cancer who give up their sexual life due to misunderstanding and fear', 'women with gynecological cancer who control their body and mind for recovery', 'women with gynecological cancer resume their sexual life with their partner's will'. Conclusion: To improve sexual health and quality of life for women with gynecological cancer, we need to develop programs related to sexual health. An adjusted sexual health program will contribute to increased sexual health and quality of life for women with gynecological cancer.

Door opening control using the multi-fingered robotic hand for the indoor service robot PSR

  • Rhee, Chang-Ju;Shim, Young-Bo;Chung, Woo-Jin;Kim, Mun-Sang;Park, Jong-Hyun
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.1093-1098
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    • 2003
  • In this paper, a practical methodology of hand-manipulator motion coordination for indoor service robot is introduced. This paper describes the procedures of opening door performed by service robot as a noticeable example of motion coordination. This paper presents well-structured framework for hand-manipulator motion coordination, which includes intelligent sensor data interpretation, object shape estimation, optimal grasping, on-line motion planning and behavior-based task execution. This proposed approach is focused on how to integrate the respective functions in harmony and enable the robot to complete its operation under the limitation of usable resources. As a practical example of implementation, the successful experimental results in opening door whose geometric parameters are unknown beforehand are provided.

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Perceived Value, Importance of Nutrition Information, and Behavioral Intention for Food Tourism in Busan

  • Son, Joung-Min;Lee, Eun-Jin;Kim, Hak-Seon
    • 한국조리학회지
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    • 제22권1호
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    • pp.135-140
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    • 2016
  • Food is widely accepted as very important factor in tourists' experiences by researchers. However, few studies revealed tourists' importance of food for their travel. Therefore, through a case study in Busan (South Korea), this study aims to critically assess the importance of food tourism from domestic tourists' perspectives. In particular, this study assess the relationship between food tourists' value, nutrition information, behavioral intention of tourists' food experiences during their travel. Using SmarPLS program, a quantitative research methodology involving a structured questionnaire has been adopted. The results reveal that food tourists' value and importance of nutrition information plays different roles in food tourism. Food tourism value and nutrition information has shown its importance for increasing revisit intention in Busan. In light of these findings, marketing strategies can be identified to accelerate the development of food tourism at a destination.

The Meaning of Breastfeeding in Korean Mothers

  • Kim, Shin-Jeong;Jeong, Geum-Hee
    • 대한간호학회지
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    • 제29권5호
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    • pp.1042-1048
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    • 1999
  • The Purpose of this study was to explore the meaning of breastfeeding using a phenomenological research methodology The sample consisted of 9 primiparous mothers who had breastfed their babies at least for 3 consecutive months. Data were collected from January 10 to February 28, 1998 through interviewing. The research question was “What was the meaning of breastfeeding to breastfeeding mothers\ulcorner” Responses to non-structured open-ended question was audio-recorded during the interview. Data were analyzed using the phenomenological method of Colazzi. From the protocols, significant statements about meaning of breastfeeding were clustered into 8 themes. Mothers perceived meaning of breastfeeding as feeling of unification through tie, expression of love, gift, nutritional supplement, duty as a mother, nurturing. mystery, and identity. From the results of this study, breastfeeding mothers perceived breastfeeding positively, so nurses need to encourage mothers to breastfeed her baby and develop program which can promote successful breastfeeding.

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XML 응용시스템 개발을 위한 설계방안 (A Design Methodology for XML Applications)

  • 김경수;주경수
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2000년도 하계종합학술대회 논문집(3)
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    • pp.39-42
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    • 2000
  • Extensible Markup Language(XML) is fast emerging as the dominant standard for representing data in the World Wide Web. Sophisticated query engines that allow users to effectively tap the data stored in XML documents will be crucial to exploiting the full power of XML. While there has been a great deal of activity recently proposing new semi-structured data models and query languages for this purpose, this paper explores the more conservative approach of using traditional relational database engines for processing XML documents conforming to Document Type Descriptors(DTDs). In this paper, we describe how to generate relational schemas from XML DTDs. The main issues that must be addressed inc]ode (a) dealing with the complexity of DTD element specifications (b) resolving the conflict between the two-level nature of relational schemas (table and attribute) vs. the arbitrary nesting of XML DTD schemas and (c) dealing with set-valued attributes and recursion. We now propose a set of transformations that can be used to "simplify" any arbitrary DTD without undermining the effectiveness of queries over documents conforming to that DTD.

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이동하는 물체 주위의 압축성 유동에 대한 가상경계법 (IMMERSED BOUNDARY METHOD FOR COMPRESSIBLE VISCOUS FLOW AROUND MOVING BODIES)

  • 조용
    • 한국전산유체공학회지
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    • 제13권3호
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    • pp.35-43
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    • 2008
  • A methodology for the simulation of compressible high Reynolds number flow over rigid and moving bodies on a structured Cartesian grid is described in this paper. The approach is based on a modified version of the Brinkman Penalization method. To avoid oscillations in the vicinity of the body and to simulate shcok-containing flows, a Weighted Essentially Non-Oscillatory scheme is used to discretize the spatial flux derivatives. For high Reynolds number viscous flow, two turbulence models of the two-equation Menter's SST URANS model and a two-equation Detached Eddy Simulation are implemented. Some simple flow examples are given to assess the accuracy of the technique. Finally, a moving grid capability is demonstrated.

DVD-RAM 기판의 복굴절, Radial-tilt 및 전사성 향상을 위한 사출압축성형공정 최적화 (An Optimum Design of Replication Process to Improve Birefringence, Radial-tilt and Land-Groove Structure in DVD-RAM Substrates)

  • 이남석;성기병;강신일
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2001년도 춘계학술대회논문집C
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    • pp.438-444
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    • 2001
  • The objective of this study is to provide a simple methodology to find optimum processing conditions to fabricate sub-micron structured DVD-RAM substrates with superb optical and geometrical properties. It was found that the birefringence, which is regarded as one of the most important optical properties for an optical disk, was very sensitive to the mold wall temperature history. Also, the integrity of the replication, represented by the land-groove structure and the radial tilt were influenced by the mold temperature and the compression pressure. A set of optimum conditions were obtained by applying Design of Experiment and the objective functions composed of three different objectives.

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<오아시스>의 타자의 공간과 재생산 (Space of the Other and its Reproduction in Oasis)

  • 계운경
    • 한국콘텐츠학회논문지
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    • 제13권10호
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    • pp.123-131
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    • 2013
  • 본 연구는 영화 <오아시스>를 통해 장애여성이 겪는 일상공간에서의 구조화된 폭력과 재생산의 관계를 짚어낸다. '집', '홍종두의 세계', '환상' 공간을 통해서 가시적 폭력뿐 아니라 상징폭력이 작동되는 방식을 살펴보고, 그것이 재생산으로 이어지도록 작용하는 연결고리로서 '강간', '사랑', 그리고 '홍종두의 편지'에 초점을 두고 분석을 시도한다. 위의 세 요소들은 한공주와 홍종두는 물론이고 이 영화를 보는 관객들까지도 오인의 메커니즘을 통해 상징폭력의 생산자로서 공모하게 하고, 결국 지배이데올로기의 재생산으로 이어지도록 이끈다.

항공기 주위 난류 유동장 해석 (TURBULENT FLOW SIMULATIONS ABOUT THE AIRCRAFT CONFIGURATION)

  • 김윤식;박수형;권장혁
    • 한국전산유체공학회지
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    • 제10권4호통권31호
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    • pp.39-50
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    • 2005
  • An application of the KFLOW3D code which has been developed at KAIST is presented. This paper briefly describes the underlying methodology and summarizes the results for the DLR-F6 transport configuration recently presented in the second AIAA CFD Drag Prediction Workshop held in Orlando, FL, June 2003. KFLOW3D is a parallelized Reynolds averaged Navier-Stokes solver for multi-block structured grids. For the present computations, 2-equation k-$\omega$ WD+ nonlinear eddy viscosity model is used. The emphasis of the paper is placed on the implementation of the k-$\omega$ WD+ model in the multigrid framework and practicality of KFLOW3D for accurately predicting not only the integrated aerodynamic property such as the drag coefficient but pressure distributions.