• 제목/요약/키워드: Addressing

검색결과 1,641건 처리시간 0.028초

서로 다른 임계압력을 가지는 디지털 밸브가 설치된 제어라인을 이용한 3 진 유체분배기 (A Ternary Microfluidic Multiplexer using Control Lines with Digital Valves of Different Threshold Pressures)

  • 이동우;조영호
    • 대한기계학회논문집A
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    • 제33권6호
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    • pp.568-572
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    • 2009
  • We present a ternary microfluidic multiplexer unit, capable to address three flow channels using a pair of control lines with two different threshold pressure valves. The previous binary multiplexer unit addresses only two flow channels using a pair of control line with identical threshold pressure valves, thus addressing $2^{n/2}$ flow channels using n control lines. The present ternary multiplexer addressing three flow channels using a pair of control lines, however, is capable to address $3^{n/2}$ flow channels using n control lines with two different threshold pressure valves. In the experimental study, we characterized the threshold pressure and the response time of the valves used in the ternary multiplexer. From the experimental observation, we also verified that the present ternary multiplexer unit could be operated by two equivalent valve operating conditions: the different static pressures and dynamic pressures at different duty ratio. And then, $3{\times}3$ well array stacking ternary multiplexers in serial is addressed in cross and plus patterns, thus demonstrating the individual flow channel addressing capability of the ternary multiplexer. Thus, the present ternary multiplexer reduces the number of control lines for addressing flow channels, achieving the high well control efficiency required for simple and compact microfluidic systems.

AC-PDP의 ADS 구동방식에서 어드레스 구간에 기울기파를 사용한 효과에 관한 연구 (A Study of the Effect using Ramp Waveform on the Address Period of Address Display Separated Operating in ac Plasma Display Panel)

  • 정봉규;김지선;권시옥;황호정
    • 한국전기전자재료학회논문지
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    • 제18권2호
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    • pp.180-186
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    • 2005
  • As a driving method of AC-PDP, Address-Display Separated(ADS) driving has been widely adopted for its simple architecture and low discharge failure rate. However, a high definition like a HDTV has defect of long addressing time by reason of a number of pixels. Priming effect isn't fully sustained because of long addressing time during the address period. Therefore, it has different wall charge and luminance of each addressing time in the sustain period. In this study, we suggest a new driving waveform on the address period to improve these defects. We applied a ramp waveform, instead of a square waveform, to an address period in ADS, for operating on the AC-PDP, which used the conventional gas [He-Ne-Xe]. When the ramp waveform is applied to the address period, we experimented for uniform wall charge and the improved luminance by sustained Priming effect at each addressing time in the sustain period.

노인학대 관련 정책 개발을 위한 일 고찰 : 미국의 노인학대 관련법과 서비스 정책을 중심으로 (A Study of Developing the Policies Addressing the Elder Abuse : Focus on the Laws and Programs Addressing Elder Abuse in the United States)

  • 우국희
    • 한국사회복지학
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    • 제44권
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    • pp.209-231
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    • 2001
  • Recently, child abuse is mentioned in revised Child Welfare Law, on the other hand, elder abuse is not yet recognized as a social problem and little addressed in the field of social service. Like this, elder abuse has gotten less public and professional attention than other areas within the family abuse field. Despite the lack of attention to elder abuse, the number of elder abuse reports and incidents is likely to increase in the future. Based on the recognition that current effort and approach to elder abuse is not appropriate, this study attemped to briefly review laws and programs addressing elder abuse in the United States which have shaped in other contries. In the United States where various laws and programs that address elder abuse exit, there are incresing arguments that addressing elder abuse in the area of social service rather than in the criminal justice systems is more desirable. Because the most common form of elder abuse is not physical abuse but neglect including self-neglect. Self-neglect and neglect caused by caregivers' burden can not be addressed through criminal justice systems appropriately. From these experiences of the United States, the implications for policy, programs, and practice aimed at intervening elder abuse were discussed.

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스마트그리드 환경에서 효율적인 주소 할당 방법과 라우팅 알고리즘 (An Effective addressing assignment method and Its Routing Algorithm in Smart Grid Environments)

  • 임송빈;김화성;오영환
    • 한국컴퓨터정보학회논문지
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    • 제17권10호
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    • pp.89-98
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    • 2012
  • 본 논문에서는 스마트그리드 환경에서 적용되고 있는 ZigBee 무선 통신 환경의 주소 지정 방식과 라우팅 알고리즘의 성능을 향상시키기 위한 새로운 좌표 값 알고리즘을 제안하였다. 수천 개의 네트워크 크기와 16비트 주소 할당은 빈번한 주소 충돌로 매우 혼잡스러울 수 있다. 따라서 16비트 주소 공간을 분할하여 사용하는 (x, y, z) 좌표축 주소 구조와 라우팅을 제안한다. (x, y) 좌표축 주소 할당은 센서노드가 지리적으로 가까운 라우터에게 연결되어 있어야 하기 때문에, 어떤 라우터는 많은 수의 하위 노드를 가질 수 없다는 문제점을 가지기 때문이다. 또한 제안한 주소 구조를 사용한 위치 기반 라우팅 알고리즘을 제안한다. 그 결과 각 노드에서 라우팅 시 적은 비트 연산과 멀티 홉을 감소시킬 수 있었고, 효과적인 주소 할당과 라우팅은 네트워크의 각 노드의 에너지 소비를 최소화 했다.

옵티컬 라이브러리 시스템에서의 어드레싱을 위한 광학 문자 인식 알고리즘 제안 (Optical Character Recognition for Addressing in Optical Library System)

  • 정우영;양현석;유승헌
    • 정보저장시스템학회논문집
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    • 제11권1호
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    • pp.6-10
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    • 2015
  • Optical library system consists of disc magazines, cabinets, transfer robot and drive. Transfer robot delivers desired disc or magazine in cabinet to drive which reads data of disc. Conventional archive system stores discs in a line and transfer robot moves in one dimension. However, to store more discs, new optical archive system, optical library system, is developed which stores discs in two dimension like bookcase. Transfer robot should know the position and stored data of desired magazine to get correct data. In this paper, addressing algorithm using optical character recognition is proposed. Proposed algorithm is evaluated by experiments with implemented system.

New Address Electrode Suitable for Fast Addressing with High Xe ac-PDP

  • Lee, Don-Kyu;Lee, Ho-Jun;Lee, Hae-June;Kim, Dong-Hyun;Park, Chung-Hoo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.564-567
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    • 2004
  • New address electrode having separated dual electrode is suggested to reduce addressing time in ac PDP. Addressing characteristics of suggested electrode has been investigated in the test panel with high Xe partial pressure. It has been found that both the formative and jitter width of the suggested electrode is improved by 10 -20 % over the wide range of address voltage level compared with the conventional one. The dynamic margin of the panel also greatly improved. The key feature behind this type of structure is that it can extend the controllability of the wall charge distribution during the reset and address discharge without significant increase in capacitive load of address electrode.

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Dual Addressing Scheme in IPv6 over IEEE 802.15.4 Wireless Sensor Networks

  • Yang, Soo-Young;Park, Sung-Jin;Lee, Eun-Ju;Ryu, Jae-Hong;Kim, Bong-Soo;Kim, Hyung-Seok
    • ETRI Journal
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    • 제30권5호
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    • pp.674-684
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    • 2008
  • This paper proposes a dual addressing scheme (DAS) for IPv6 over IEEE 802.15.4 wireless sensor networks (WSN). DAS combines a global unicast address to cope with association link changes and node mobility, and it links local addresses to lighten the overhead of the system to save energy and resources. This paper describes DAS address formats, address autoconfiguration, and address translation tables in the gateway. A detailed description of DAS is provided through examples. Simulations are performed to demonstrate the performance improvements of the DAS compared with the IPv6-based WSN, which uses the conventional single address.

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AC PDP의 온도에 따른 방전 특성 연구 (A Study on the Temperature-Dependent Discharge Characteristics in Alternating Current Plasma Display Panel)

  • 이석현;김지용
    • 전기학회논문지
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    • 제56권3호
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    • pp.577-582
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    • 2007
  • The plasma display panel is an image expression display using gas discharge plasma. However, gas discharge characteristics vary with temperature as gas discharge is sensitive to temperature. The discharge time lag extends a lot in low temperature and it is known as the cause which hinders high speed addressing which is essential for the size enlargement of the panel. Accordingly this research aims at identifying the temperature-dependent discharge characteristic. The lower temperature becomes, the longer addressing discharge time lag becomes. Particularly the statistical time lag extends much in low temperature. The increasing of electric field shortens discharge time lag in low temperature. Also, when priming particles are sufficiently supplied, stable discharge can be performed regardless of the influence of temperature.

Laser -addressing Electronic Paper

  • Chen, Heng-Yin;Lu, Shao-Chuan;Chen, Shang-Chia;Lin, Hsuan-Kai;Liu, Sung-Ho;Chen, Chun-Ming;Liang, Chao-Chiun
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.175-178
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    • 2008
  • A new laser-addressing method is proposed in this paper. With the characteristic of high power and small spot size, simple structure electronic paper can be addressed only by laser source, and high quality image with 300dpi resolution can be easily achieved.

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Influence of wall charge configurations prior to addressing discharge on dynamic margin in AC Plasma Display Panel

  • Jung, Y.;Choi, J.H.;Jung, K.B.;Kim, S.B.;Choi, E.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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    • pp.764-767
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    • 2003
  • We have experimentally investigated the influence of wall charge configurations prior to addressing discharge on dynamic margin in AC plasma display panel. In this experiment, we have analyzed the quantity and polarity of wall charge accumulated on the front and rear dielectrics just prior to the addressing discharge under the conventional driving sequence.

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