• Title/Summary/Keyword: Adapter

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Design and Fabrication of an End-Launched Rectangular Waveguide Adapter Fed by a Coaxial Loop

  • Yang, Doo-Yeong
    • Journal of information and communication convergence engineering
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    • v.10 no.2
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    • pp.103-107
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    • 2012
  • An end-launched adapter combining a coaxial loop within a rectangular waveguide has been analyzed and designed. The accurate electromagnetic modeling of input impedance for the adapter design has been developed using a modal analysis method. Also, design parameters to improve the end-launched adapter have been investigated. Numerical and experimental results of the proposed model have been compared with the results of previous works, and verified by an electromagnetic simulator of High Frequency Structure Simulator (HFSS). The input voltage standing wave ratios (VSWRs) are smaller than 2 over the wide frequency band from 7.5 GHz to 10.5 GHz.

A USB-JTAG Adapter for Remote Debugging Tool of SoC Programs (SoC 프로그램의 원격디버깅 도구를 위한 USB-JTAG Adapter)

  • Koo, Geum-Seo;Park, Myeong-Chul;Ha, Seok-Wun;Jun, Yong-Kee;Lim, Chea-Deok
    • Proceedings of the Korea Information Processing Society Conference
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    • 2005.11a
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    • pp.1449-1452
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    • 2005
  • SoC 프로그램은 타겟 시스템의 자원과 타이밍에 민감하여 실제 타겟 시스템과 동일한 환경에서 디버깅해야 하므로 호스트 시스템과 타겟 시스템간의 원격 접속을 위한 Adapter가 필수적으로 요구된다. 그러나 기존의 디버깅 도구에 사용되는 고가의 Adapter들은 도구에 제한적이기 때문에 다른 도구와의 연동이 불가능하다. 본 논문에서는 산업표준인 JTAG을 기반으로하는 SoC를 원격으로 제어하기 위한 고속의 USB-JTAG Adapter를 개발하여 GDB 기반의 경제적 원격 디버깅 도구를 개발할 수 있음을 보인다.

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A Study on the Development of Grip Adapters for Developing Design Tensile Strength of Glass Fiber Reinforced Polymer Rebar (GFRP Rebar의 적정 인장강도 발현을 위한 정착구 개발에 관한 연구)

  • Park Ji-Sun;You Young-Chan;Park Young-Hwan;Kim Hyeong-Yeol;You Young-Jun;Kim Keung-Hwan
    • Proceedings of the Korea Concrete Institute Conference
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    • 2004.11a
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    • pp.797-800
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    • 2004
  • Some test results indicated that the current ASTM grip adapter of GFRP rebar was not successful in developing the design tensile strength of GFRP rebar with reasonable accuracy. It is because the current ASTM grip adapter of GFRP rebar does not take into account the various geometric characteristics of GFRP rebar such as surface treatment, shape of bar cross section, bar deformation as well as physical characteristics such as poisson effect, elastic modulus in the transverse direction and so on. The research reported in this paper is to provide how to proportion an adequate grip adapter to develop design tensile properties of GFRP rebar. The proposed grip adapter is derived from the equilibrium or compatibility equations. From the preliminary test results for rounded GFRP rebar, it was found that the grip adapter with specific size proportioned by proposed method shows the highest tensile strength among them.

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Semantic-specific Adapter memory network for Mention detection entity linking (시멘틱 특화 Adapter 메모리 네트워크에 기반한 멘션 추출 및 개체 연결)

  • Lee, Jong-Hyeon;Na, Seung-Hoon;Kim, Hyun-Ho;Kim, Seon-Hoon;Kang, Inho
    • Annual Conference on Human and Language Technology
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    • 2020.10a
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    • pp.233-236
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    • 2020
  • 개체 연결 태스크는 문장 내에 등장하는 멘션(Mention)들을 위키피디아(Wikipedia)와 같은 지식 베이스 상의 실제 개체에 연결하는 태스크이다. 본 논문에서는 각 멘션을 시멘틱(Semantic)으로 분류하여 각 시멘틱별 추가 학습을 진행할 수 있는 Adapter Memory Network 모델을 제안한다. 이는 각 시멘틱 별 학습을 하나의 통합된 과정으로 진행하도록 하는 모델이며, 본 논문에서는 Adapter Memory Network 모델을 통해 기존 개체 연결 태스크에서 높은 성능을 보이는 NIL 멘션 탐지와 개체 연결의 통합 모델의 성능을 향상시켰음을 보인다.

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Implementation of ETI Adapter for Multimedia Service based on T-DMB (지상파 DMB 기반 멀티미디어 서비스용 ETI 어댑터 구현)

  • Lee, Hyung
    • The Journal of the Korea Contents Association
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    • v.9 no.2
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    • pp.60-66
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    • 2009
  • In this paper, implementation of an ensemble transport interface (ETI) adapter for multimedia services based on terrestrial-digital multimedia broadcasting (T-DMB) is introduced. In general, ETI adapter should manipulate three functions: receiving packets packing multimedia data from service providers, configuring an ETI frame (G.703) from these data, and transmitting these frames to T-DMB multiplexer. To achieve these roles, the proposed ETI adapter consists of the network management module for data transmission and flow control between service providers and this adapter, the ETI configuration module for gathering data and then making ETI frames, and the hardware board for pushing ETI frames in real-time. The proposed adapter yielded faithful results without data lose on transmitting ETI frames to T-DMB multiplexer in the range of $64{\sim}1,153kbps$ specified in ETSI EN 300 401 after packing multimedia data received via Internet.

Off-time Control Method for High Power Density AC/DC Adapter (고전력밀도 AC/DC Adapter를 위한 off-time 제어법)

  • Kang, Shin-Ho;Jang, Jun-Ho;Hong, Sung-Soo;Lee, Jun-Young
    • The Transactions of the Korean Institute of Power Electronics
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    • v.12 no.6
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    • pp.510-516
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    • 2007
  • The proposed method offers an improved control method for high power density AC/DC adapter by using more energy efficient electrical equipments. Power factor correction (PFC) topology is based on boost topology with boundary conduction mode (BCM). DC/DC topology is based on half-bridge topology with fixed 50% duty and newly introduced off-time control method, which helps to reduce size of the semiconductor and the magnetic devices. Test results with 85W AC/DC adapter (18.5V/4.6A) design show that the measured efficiency is 90% with power density of $36W/in^3$. It also shows low no load power consumption of about 0.5W.

An Approach to Composite Techniques and Application of EJB Component using Adapter Pattern (Adapter패턴을 이용한 EJB 컴포넌트 조립 기법 및 응용)

  • Jeong Hwa-Young
    • Journal of Internet Computing and Services
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    • v.4 no.1
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    • pp.67-74
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    • 2003
  • According to change of software development technique as design pattern, component based development etc.., web server development part is applied activity to fit in various user requirement. Especially, EJB as sewer side component model much researches and introduce by easy and various development support. Also, component composing techniques is receiving many interests by easy and efficient application way that architecture based C2 style architecture with message handling. But, in case of EJB component that can not cail thread, C2 framework modification is unavoidable for component composition by C2 style architeccture. For this, we propose techniques to use Adapter pattern to be one of structure pattern among pattern. That is, did so that component composition by C2 style architecture may can consist changing to be able to call thread function in EJB by Adapter pattern.

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Design of the LLC Half Bridge Resonant Adapter for Notebook Computers (노트북 컴퓨터용 LLC 하프 브리지 공진형 어댑터 설계)

  • Hwang, Gook-Hwa;Youn, Dae-Young;Kim, Chang-Sun
    • Proceedings of the KIEE Conference
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    • 2006.07b
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    • pp.1039-1040
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    • 2006
  • The resonant converters cause the high voltage stress according to the input voltage, which increases the conduction loss in converter power switches. The topology of LLC half bridge resonant converter provides ZVS characteristic and also the stress of voltage and current is not higher than that of the general resonant converters. So we can expect the higher efficiency. In this paper, the LLC resonant converter is designed for the notebook computer adapter. In the adapter design, we should consider the weight, the size and overheat of the adapter. Thus the higher efficiency is an essential particular. First of all, the optimal design of transformer is the most important facts. Some parameters should be considered in order to get the highest efficiency. The adapter is designed through the considering of these parameters including the PFC circuit of the pre-regulator. It converts AC line input into about $400V_{DC}$ Link voltage of the LLC converter input and the converter has $16V_{DC}/90W$ ratings. The efficiency measured is about up to 92%.

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A Study for the Improvement of Top End Piece Structural Strength (상단고정체의 구조강도 개선을 위한 연구)

  • Song, Kee-Nam;Sohn, Dong-Seong
    • Nuclear Engineering and Technology
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    • v.21 no.3
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    • pp.186-192
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    • 1989
  • As a part of the design of the top end piece(TEP) for the 14$\times$14 reload fuel, various models of top end piece structure were analysed, using the ANSYS code, under fuel assembly shipping and handling load conditions. The 3-dimensional isoparametric elements were used in each model. By rearrangement of slots and holes on the adapter plate, without violating the design requirements, and also by changing the enclosure attachment method used on the adapter plate from pin joints to through-weld, the load carving capacity of the adapter plate was greatly strengthened. These concepts were adopted for the design of the 14$\times$14 reload fuel.

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Design of High Power Density AC/DC Adapter (고전력밀도 AC/DC 어댑터의 설계)

  • Lee, Jun-Young
    • The Transactions of the Korean Institute of Power Electronics
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    • v.15 no.4
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    • pp.259-265
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    • 2010
  • The proposed method offers an improved control method for high power density AC/DC adapter by using more energy efficient electrical equipments. Power factor corrector (PFC) topology is based on boost topology with boundary conduction mode (BCM) and DC/DC topology is based on LLC resonant converter, which helps to reduce size of the semiconductor and the magnetic devices. Test results with 85W AC/DC adapter (18.5V/4.6A) design shows that the measured efficiency is 90% at $90V_{rms}$ input voltage with power density of $36W/in^3$. It also shows low no load power consumption of about 0.5W.