• Title/Summary/Keyword: Inter-Korean

Search Result 6,046, Processing Time 0.035 seconds

Thin-film passivation of the polymer EL device using parylene and its application to the passive matrix PELD system

  • Lee, Cheon-An;Jin, Sung-Hun;Jung, Keum-Dong;Lee, Jong-Duk;Park, Byung-Gook
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.669-672
    • /
    • 2004
  • The thin-film passivation technology using the poly-para-xylylene (parylene) was applied to polymer electroluminescent devices. The fabricated device shows a good luminescent characteristic of maximum 11640 cd/$m^2$. The measured lifetime was reached up to 28 hours, which means the effectiveness of the passivation. Applying the parylene thin-film passivation technique, 10${\times}$10 passive matrix display system was implemented and obtained some still images.

  • PDF

A New I-V Equation for Thin Film Transistors and Its Parameter Extraction Method

  • Jung, Keum-Dong;Kim, Yoo-Chul;Park, Byung-Gook;Shin, Hyung-Cheol;Lee, Jong-Duk
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2008.10a
    • /
    • pp.201-204
    • /
    • 2008
  • Based on the device physics, a new I-V equation for TFTs is derived and a simple parameter extraction method is suggested. The new method gives more physically meaningful threshold voltage and mobility, and the obtained values can be directly used for the TFT device modeling.

  • PDF

Pentacene OTFTs with $Al_2O_3$ gate insulator by Atomic Layer Deposition Process

  • Jin, Sung-Hun;Kim, Jin-Wook;Lee, Cheon-An;Park, Byung-Gook;Lee, Jong-Duk
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2003.07a
    • /
    • pp.15-18
    • /
    • 2003
  • Pentacene OTFTs of $Al_2O_3$ insulator treated with a diluted PMMA were fabricated for the application of the low voltage operation and large area displays. The operation voltage of 15 V and the mobility of 0.35 $cm^2/Vsec$ are obtained even adopting the thick dielectric of 100 nm which was deposited by atomic layer deposition at the temperature of $150^{\circ}C$. The current on-off ratio was $4.1{\times}10^4$ for the OTFTs treated with 9:1 PMMA and good saturation characteristics were obtained as drain voltage increases.

  • PDF

Signaling for Inter-Switching Handoff on ATM-based Wired/Wireless Integraed Network (ATM기반 유무선 통합망에서 교환기간 핸드오프 처리를 위한 시그널링 방안)

  • 장경훈;강경훈;박상현;안영화;김덕진
    • Journal of the Korean Institute of Telematics and Electronics S
    • /
    • v.35S no.1
    • /
    • pp.39-51
    • /
    • 1998
  • In this paper, we propose signaling procedures amon network elements for a connection rerouting method which can reduce inter-switch handoff processing delay reduces the delay in the connection re-routing by reserving VPI/VCIs for possible inter-switch handoff calls in advance. Additionally, we mathematically analyze the signaling procedures and then suggest solutions to the relations with cluser size, network topoloty, handoff-request rete and handoff delay. With simulation, the solutions are validated. From numerical examples, we concluded taht handoff delay, one of the handoff QoSs, can be satisfied by adjusting the cluster size and network topology according to the handoff -request rate of service area. With our proposed signaling and analytic methods, we concluded that the connection rerouting method using cluster-sectoring effectively reduces the delay of inter-switch handoff processing than dynamic connection rerouting method. Our solutions are useful in guaranteeing the requested handoff delay (especially, inter-switch handoff delay) when the connection rerouting method is applied to ATM-based wireless/wired integrated network.

  • PDF

A Numerical Experiment on the Inter-annual Variation Induced by the Current in a Basin with Dimension Comparable to the East Sea

  • Cho Kyoung-Ho;Seung Young Ho
    • Fisheries and Aquatic Sciences
    • /
    • v.3 no.2
    • /
    • pp.163-171
    • /
    • 2000
  • A series of numerical experiments are performed to examine the generation of inter-annual variations by an inertial current in an idealized semi-enclosed basin with dimension comparable to that of the East Sea. Model results indicate that the inter-annual variations dominate the kinetic energy spectrum with a peak around the time scales of 2-3 years. These variations are mostly due to the westward propagating meanders and large eddies induced by the instability of current, indicating their dependency on the eddy-resolving capacity of the model. They are generated in the interior of the basin but their energy is largely confined near the western boundary such that the east-west dimension of the basin cannot be considered as a critical factor as long as the basin covers enough western boundary region. Overall, this study suggests that the inter-annual variation observed in the East Sea is due to the meandering and large eddies induced by the instability of the current.

  • PDF

Inter-comparison of Bell Prover using Sonic Nozzles (소닉노즐을 이용한 벨 푸루버의 국제비교)

  • Choi, Hae Man;Park, Kyung-Am
    • The KSFM Journal of Fluid Machinery
    • /
    • v.7 no.1 s.22
    • /
    • pp.24-29
    • /
    • 2004
  • The inter-comparison of standards is required to be recognized the calibration results. The sonic nozzle package is developed to do inter-comparison of the bell preyer used to calibrate many gas flow meters for industries. Four national metrology institutes (KRISS, CMS, CENAM, NEL) were participated in this inter-comparison. The deviation of calibration data from the average value was small at the low flow rate and large at the high flow rate, respectively At the high flow rate, the deviation was larger than the expected value from uncertainties asserted by NMIs. This means there are some problems in the uncertainty evaluation and experiment procedures in some of the participated NMIs.

Tree Species Preference and Inter-specific Difference of Foraging Maneuver, Trees and Location among Four Canopy-dwelling Birds at High-elevation Temperate Deciduous Forest in Mt. Jumbongsan

  • Park, Chan-Ryul
    • Animal cells and systems
    • /
    • v.9 no.1
    • /
    • pp.41-46
    • /
    • 2005
  • This study was conducted to reveal tree species preference and inter-specific difference of foraging behavior among four canopy-dwelling birds at forest dominated by Quercus mongolica, Acer pseudosieboldian and Carpinus cordata at 1,000 meters above sea level during breeding season of birds from 1995 to 1997 in Mt. Jumbongsan. Breeding birds were about 25 species and dominant birds were Erithacus cyane, Parus ater and Parus palustris. A relatively high number of bush-nesters can be a characteristic of breeding bird community at study area. Three gleaners (Tits, P. varius, P. palustris and P. ater) selectively preferred the trees irrespective of dominant tree species, whereas bark foragers (Nuthatch, Sitta europaea) utilized the dominant trees. The four birds showed significant inter-specific difference in use of foraging location, but the three tits did not show significant inter-specific difference in use of foraging maneuver and trees. Closely related tits may coexist with each other by inter-specific different use of foraging location determined by foliage structure and leaf arrangement.

BcN에서의 QoS 보장형 차별화 서비스 제공을 위한 Inter-Domain 네트워킹 기술

  • 김영탁
    • Information and Communications Magazine
    • /
    • v.22 no.12
    • /
    • pp.105-119
    • /
    • 2005
  • 광대역 유선통신망과 무선통신망이 통합되고, 통신과 방송이 융합되는 BcN 환경에서는 서비스 품질(QoS)이 보장되는 다양한 종류의 멀티미디어 서비스가 제공될 수 있어야하며, 다수의 통신방사업자가 제공하는 BcN들 간에 QoS 보장형 차별화서비스 제공을 위한 inter-domain 트래픽 엔지니어링 기능이 제공되어야한다. 특히, BcN 구축 초기 단계에서는 각 통신망 사업자가 개별적으로 구축 및 운영하는 BcN의 NNI signaling과 망운용관리 기능에 많은 차이점이 존재할 것으로 예상되기 때문에, 이들을 효율적으로 연동시킬 수 있는 inter-domain networking 기능 구현방안이 상세히 연구되어야한다. 본 논문에서는 BcN 환경에서의 QoS 보장형 차별화서비스제공을 위한 inter-domain 네트워킹 기술에 대하여 각 영역별로 살펴보며, 상용 BcN간 연동에 적용될 수 있는 트래픽 엔지니어링 및 관련 구현 기술에 대하여 살펴본다. Inter-domain networking 기능 모델로는 유럽연합(EU)의 IP Premium 프로젝트의 일환으로 개발된 MESCAL (Management of End-to-End Quality of Service Across the Internet at Large)을 분석하며, 세부 기능 구현 방안으로 MPLS NNI signaling 기반의 제어정면 연동방안, Web service 구조와 XML 기반의 망운용관리 평면 연동기능 구현 방안에 대하며 살펴본다.

Global Disparity Compensation for Multi-view Video Coding

  • Oh, Kwan-Jung;Ho, Yo-Sung
    • Journal of Broadcast Engineering
    • /
    • v.12 no.6
    • /
    • pp.624-629
    • /
    • 2007
  • While single view video coding uses the temporal prediction scheme, multi-view video coding (MVC) applies both temporal and inter-view prediction schemes. Thus, the key problem of MVC is how to reduce the inter-view redundancy efficiently, because various existing video coding schemes have already provided solutions to reduce the temporal correlation. In this paper, we propose a global disparity compensation scheme which increases the inter-view correlation and a new inter-view prediction structure based on the global disparity compensation. By experiment, we demonstrate that the proposed global disparity compensation scheme is less sensitive to change of the search range. In addition, the new Inter-view prediction structure achieved about $0.1{\sim}0.3dB$ quality improvement compared to the reference software.

Mediating Effects of Inter-Organizational Relation on the Relation between Resilience and School Adjustment in Elementary School Students (초등학생의 탄력성과 학교적응에 미치는 영향에서 조직의 매개효과 분석)

  • Lee, Sang-Soo;Hwang, Soon-Young;Song, Yeon-Joo;Lee, Hoo-Hee
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.26 no.6
    • /
    • pp.1217-1230
    • /
    • 2014
  • The purpose of this study was to investigate the mediating effects of inter-organizational relation on the relation between resilience and school adjustment in elementary school students. The results of this study are as follows: First, there were positive relations among student's resilience, school adjustment, and inter-organizational relation. Second, the mediating effect of inter-organizational relation in the relation between student's resilience and school adjustment was shown by the partial mediating effect. The result of the study shows that student's resilience is the variables influencing school adjustment. Therefore, it suggests to establish inter-organizational relation, ethical climate for active communication among school members in order to improve student's school adjustment. Based on the results, findings and implications are discussed.