• 제목/요약/키워드: Linking

검색결과 2,606건 처리시간 0.024초

등고선가공에서의 기술적 요구사항 들 (Technological Requirements in Z-level Machining)

  • 박상철
    • 대한기계학회:학술대회논문집
    • /
    • 대한기계학회 2001년도 춘계학술대회논문집C
    • /
    • pp.128-133
    • /
    • 2001
  • For the Z-level machining, a tool-path linking procedure is presented. The linking problem is approached from the technological requirements, such as considering the machining constraints among the tool-path-elements, minimizing the tool-path length and reflecting the oneway/zigzag linking option. To simplify the linking problem, we develop a data structure, called a TPE-net, providing information on the machining constraints among the tool-path-elements. By making use of the TPE-net, the tool-path linking problem becomes a touring problem so that every node has been traversed.

  • PDF

실용적인 시스템을 위한 안전한 소프트웨어 컴포넌트 조합 (Secure Component Composition for Practical Systems)

  • 이은영
    • 정보보호학회논문지
    • /
    • 제16권4호
    • /
    • pp.43-57
    • /
    • 2006
  • 소프트웨어 컴포넌트를 이용하여 시스템을 구성하는 경우 그리 간단하지 않은데, 그것은 링크 과정 자체가 서로 다른 버전들과 디지털 서명, 정적인 타입 정보나 네트워크로 전송된 소프트웨어, 그리고 서로 다른 판매자에 의한 컴포넌트들을 모두 포함하는 복잡한 과정이기 때문이다. 만약 링크과정에 적용될 수 있는 링크 정책을 수립하고 이를 링크 시에 적용할 수 있는 방법이 있다면 이러한 복잡함을 해결하는 좋은 수단이 된다. 시큐어 링킹(Secure Linking)은 사용자가 안전한 링크를 위한 정책을 만들고 이를 링크 시에 적용할 수 있도록 해주는 새로운 링크 프로토콜이며, 시큐어 링크 프레임워크(Secure Linking Framework)는 시큐어 링크 시스템 구현을 위한 논리적 프레임워크이다. 본 논문에서는 시큐어 링크 프레임워크를 이용하여 마이크로 소프트의 닷넷(.NET)에서 사용되는 어셈블리의 링크 과정을 설명함으로써 시큐어 링킹이 실제로 사용되는 링크 시스템을 나타낼 수 있을 만큼 풍부한 표현력과 실용성을 가지고 있음을 증명한다. 또한 이 과정에서 나타난 어셈블리 코드 서명의 문제점에 대한 논의를 통해서 논리에 기반을 둔 링크 프레임워크가 가지는 장점을 보이고자 한다.

A Study Analyzing Reference Linking Service in Digital Libraries

  • Noh, Younghee;Ladd, Patricia R.;Na, Kyoungsik
    • International Journal of Knowledge Content Development & Technology
    • /
    • 제5권1호
    • /
    • pp.69-88
    • /
    • 2015
  • This study seeks to present an option for including a variety of information resources in a reference linking service system. Discussion on reference linking service in journals began in 1999 and applied to real systems, but linking to research papers and patent registers has more recently emerged. This study further suggests that system construction include various information resources such as books and dissertations. This paper also presents principles and prerequisites that should be considered essential when building such systems, including expansion of resources and media formats, development of identifiers on every sort of information resource, linking methods to existing DB, publication revolution and managing copyright-holders, use and improvement of OPACs, and building perfect authority DB.

Formal Models of Module Linking Mechanisms for a Single Address Space

  • 김희철;홍원기
    • 한국산업정보학회논문지
    • /
    • 제19권2호
    • /
    • pp.51-58
    • /
    • 2014
  • As WSNs(Wireless Sensor Networks) are being deployed widely in diverse application areas, their management and maintenance become more important. Recent sensor node software takes modular software architectures in pursuit of flexible software management and energy efficient reprogramming. To realize an flexible and efficient modular architecture particularly on resource constrained mote-class sensor nodes that are implemented with MCUs(Micro-Controller Units) of a single address space. an appropriate module linking model is essential to resolve and bind the inter-module global symbols. This paper identifies a design space of module linking model and respectively their implementation frameworks. We then establish a taxonomy for module linking models by exploring the design space of module linking models. Finally, we suggest an implementation framework respectively for each module linking model in the taxonomy. We expect that this work lays the foundations for systematic innovation toward more flexible and efficient modular software architectures for WSNs.

개체 중의성 해소를 위한 사용자 유사도 기반의 트윗 개체 링킹 기법 (Tweet Entity Linking Method based on User Similarity for Entity Disambiguation)

  • 김서현;서영덕;백두권
    • 정보과학회 논문지
    • /
    • 제43권9호
    • /
    • pp.1043-1051
    • /
    • 2016
  • 트위터 문서는 웹 문서에 비해 길이가 짧기 때문에 웹 기반의 개체 링킹 기법을 그대로 적용시킬 수 없어 사용자 정보나 집단의 정보를 활용하는 방법들이 시도되고 있다. 하지만, 트윗의 개수가 충분하지 않은 사용자의 경우 데이터 희소성 문제가 여전히 발생하고 관련이 없는 집단의 정보를 사용할 경우 링킹의 결과에 악영향을 미칠 수 있다. 본 논문에서는 기존 연구의 문제를 해결하기 위해 단일 트윗 내의 의미 관련도 뿐만 아니라 사용자의 트윗 집합과 다른 사용자들의 트윗 집합까지 고려하여 데이터 희소성을 해결하고, 관련성이 높은 사용자들의 트윗 정보에 가중치를 주어 트윗 개체 링킹의 성능을 높이고자 한다. 실제 트위터 데이터를 활용한 실험을 통해 제안하는 트윗 개체 링킹 기법이 기존의 기법에 비해 높은 성능을 가지며, 유사도가 높은 사용자의 정보를 사용하는 것이 트윗 개체 링킹에서 데이터 희소성 해결과 링킹 정확도 향상에 연관성이 있음을 보였다.

Development of Specific organ targeting drug delivery system II : Physico-pharaceutical study on the crose-linked albumin microspheres containing cytarabine

  • Kim, Chong-Kook;Lee, Jin-Kyu;Lah, Woon-Lyong
    • Archives of Pharmacal Research
    • /
    • 제9권1호
    • /
    • pp.39-43
    • /
    • 1986
  • Bovine serum albumin microspheres containing cytarabine were prepared using cross-linking agent, formaldehyde. The shape and the size distribution of them were observed. The shape of them was spherical and the susrface was compact and smooth. The size distribution of them was affected by dispersion forces during emulsfication. The release of cytarabine from albumin microspheres was dependent upon cross-linking time, amount of cross-linking agent and drug/albumin ratio. However, the difference of drug release by the dispersion forces was not great. After release test, the shape of albumin microspheres was nonspherical and the albumin matrix seemed to be a little relaxed. The degradation tests of albumin microspheres by the proteolytic enzyme showed that albumin microspheres were progressively digested according to the cross-linking degree.

  • PDF

APPLICATION OF LINKING FOR AN ELLIPTIC SYSTEM

  • Nam, Hyewon
    • Korean Journal of Mathematics
    • /
    • 제17권2호
    • /
    • pp.181-188
    • /
    • 2009
  • In this article we consider nontrivial solutions of an elliptic system in the bounded smooth domain with homogeneous Dirichlet data. We apply the linking theorem for showing the existence results that is obtained by Massa.

  • PDF

Effect of Plasticizer and Cross-Linking Agent on the Physical Properties of Protein Films

  • Lee, Myoung-Suk;Lee, Se-Hee;Ma, Yu-Hyun;Park, Sang-Kyu;Bae, Dong-Ho;Ha, Sang-Do;Song, Kyung-Bin
    • Preventive Nutrition and Food Science
    • /
    • 제10권1호
    • /
    • pp.88-91
    • /
    • 2005
  • To improve the physical properties of protein films, various plasticizers and cross-linking agents were used in the preparation of the films. For zein film, 3% polypropylene glycol with 3% glycerol was the best plasticizer, while 2.5% glycerol was the most suitable for soy protein isolate (SPI) film in terms of tensile strength (TS), % elongation, and water vapor permeability (WVP). Formaldehyde, glutaraldehyde, glyoxal, and cinnamaldehyde as cross-linking agents of protein films were used to further improve the physical properties of the films. All aldehydes used as cross-linking agent in this study improved TS of zein and SPI films. In particular, cinnamaldehyde was the best cross-linking agent due to its safety in foods. These results suggest that appropriate use of plasticizer and cross-linking agent like cinnamaldehyde should improve the physical properties of protein films for use in food packaging.

Cross-Linked Starch Microspheres: Effect of Cross-Linking Condition on the Microsphere Characteristics

  • Atyabi, Fatemeh;Manoochehri, Saeed;Moghadam, Shadi H.;Dinarvand, Rassoul
    • Archives of Pharmacal Research
    • /
    • 제29권12호
    • /
    • pp.1179-1186
    • /
    • 2006
  • Cross-linked starch microspheres were prepared using different kinds of cross-linking agents. The influence of several parameters on morphology, size, swelling ratio and drug release rate from these microspheres were evaluated. These parameters included cross-linker type, concentration and the duration of cross-linking reaction. Microspheres cross-linked with glutaraldehyde had smooth surface compared with those prepared with epichlorhydrine or formaldehyde. The particle size increased with increasing the cross-linking time and increasing the drug loading. Swelling ratio of the particles was a function of cross-linker type but not the concentration or time of cross-linking. Drug release from starch microspheres was measured in phosphate buffer and also in phosphate buffer containing a-amylase. Results showed that microspheres cross-linked with epichlorhydrine released all their drug content in the first 30 minutes. However, cross-linking of the starch microspheres with glutaraldehyde or formaldehyde decreased drug release rate. SEM and drug release studies showed that cross-linked starch microspheres were susceptible to the enzymatic degradation under the influence of alpha-amylase. Changing the enzyme concentration from 5000 to 10,000 IU/L, increased drug release rate but higher concentration of enzyme (20,000 IU/L) caused no more acceleration.