• Title/Summary/Keyword: 무규정공간

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Close Looking at Gilles Deleuze's Any-Space-Whatever (무규정 공간 자세히 보기)

  • Kim, Jung-Ho;Kim, Jae Sung
    • The Journal of the Korea Contents Association
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    • v.21 no.12
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    • pp.765-790
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    • 2021
  • The affection-image is the close-up of the face with real connections in space-time, or with virtual conjunction, outside spatio-temporal co-ordinates. The close-up can carry its own space-time in background. with deframing and fragmentation, Space itself has left behind its own space-time connection and become any-space-whatever that is the affection-image. The elements of any-space-whatever are the shadows, lyrical abstraction, the colors, the disconnected parts, the empty space. Deleuze examines any-space-whatever through the close ups, fragmentation of space and de-framing in Dreyer and Bresson's cinema.

Evaluation of Judging Structural Performance Based Design in Steel Structure (강구조 건축물의 성능기반설계를 위한 성능규정치의 평가)

  • Oh, Sang-Hoon;Oh, Young-Suk;Hong, Soon-Jo
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2009.04a
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    • pp.557-560
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    • 2009
  • 본 연구에서는 건물의 규모, 용도 및 형식 등에 따라 다양하게 요구되는 성능에 대응할 수 있도록 하기 위한 성능설계에 대한 개념을 검증하고, 강구조 건축물의 특성을 고려한 성능레벨 및 성능한계에 대한 분류방법을 제안하였다. 또한 강구조 건축물의 경우 강도가 높고 경량인 특성에 의해 다른 구조형식에서는 크게 고려하지 않아도 되는 거주성능 및 진동특성을 제어하여 기능을 유지하기 위한 성능레벨을 설정하여 구조물이 항복하기 전의 성능레벨을 기능유지 및 무손상의 2단계로 제시하고, 이 때의 한계치를 기능한계 및 손상한계로 구분하였다. 강구조 건축물의 손상한계를 정의하기 위해 강구조 건축물의 설계 예를 이용하여 항복 층간변형각을 조사하였다. 그 결과 구조물의 손상발생을 억제할 수 있는 손상한계를 규정하기 위해 주로 사용하고 있는 층간변형각은 구조형식 및 설계방법에 따라 편차가 크게 나타나고 있으므로 손상한계치의 층간변형각을 임의로 설정하는 것은 매우 어려우며 향후 이에 대한 해석적, 실험적 검증이 필요할 것으로 판단되었다.

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Visually Lossless Image Compression for Digital Cinema Distribution Based on DCI Specification (DCI 규격을 만족하는 디지털시네마 배급을 위한 시각적 무손실 압축 연구)

  • Kim, Chul-Hyun;Paik, Joon-Ki
    • Journal of Broadcast Engineering
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    • v.13 no.1
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    • pp.99-108
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    • 2008
  • This raper analyzes the effect of visually lossless image compression for efficient distribution of digital cinema. Currently, distribution of digital cinema is carried out based on JPEG 2000 standard that has been selected by DCI. We first summarize characteristics of JPEG 2000, and then define the concept of visually lossless coding that plays an important role in digital cinema distribution. We provide a test for JPEG 2000 compression performance according to DCI specification for visually lossless. Based on the experiment, the result satisfies high quality for cinema distribution.

Running Safety Analysis of Railway Vehicle Systems for Ground Vibration (철도 차량의 지반진동에 의한 주행안전성 평가)

  • Choi, Jun-Sung;Jo, Man-Sup;Lee, Jin-Moo
    • Tunnel and Underground Space
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    • v.16 no.4 s.63
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    • pp.288-295
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    • 2006
  • In this study, dynamic behavior of the vehicles is analyzed, while the track is subjected to lateral vibrations due to earthquake and blasting load. A computer program(WERIA, Wheel Rail Interaction Analysis) is used, which can simulate dynamic responses of vehicles subjected to lateral vibrations. The analysis considers two types of vehicles: I.e. power cars of KTX and Busan subway train. It can also consider the interaction with sub-structures such as tracks and soil. The creep force module is considered, and the running safety of railway vehicles subjected to earthquake and blasting loading is studied. Based on the results of this study, the running safety of the vehicles can be confirmed against lateral vibration.

Effect of Shear Condition on Washless Polyelectrolytes Multilayering Treatment on GCC (전단 조건이 중질탄산칼슘의 무세척 고분자전해질 다층흡착 처리에 미치는 영향)

  • Lee, Jegon;Sim, Kyujeong;Lee, Hak Lae;Youn, Hye Jung
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.46 no.5
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    • pp.51-60
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    • 2014
  • To find a practical application approach of polyelectrolyte multilayering (PEM) on inorganic filler, we introduced PEM process without washing step and investigated the effect of shear condition on the washless PEM treatment of ground calcium carbonate (GCC). Washless multilayering on GCC was conducted under various shear conditions such as stirring, homogenization, and ultrasonication. Highly charged polyelectrolytes combination of polydiallyldimethylammonium chloride (PDADMAC) and poly sodium 4-styrene sulfonate (PSS) and low charged polyelectrolytes combination with cationic starch and anionic polyacrylamide (PAM) were compared. In the case of highly charged polyelectrolytes combination, shear conditions did not affect the zeta potential and the particle size of treated GCC. However, the modified GCC particles with low charged polyelectrolytes were more dispersed under higher shear condition while maintaining the zeta potential. In addition, GCC was successfully modified through laboratory inline washless polyelectrolyte multilayering system which consists of homogenizers and pumps.

A Study on the Performance Predictions of Twin Sail Drone (트윈 세일 드론의 성능추정에 관한 연구)

  • Ryu, In-Ho;Yang, Changjo;Han, Won-heui
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.28 no.5
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    • pp.827-834
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    • 2022
  • Recently, marine surveys using unmanned ships are attracting attention, and research on small unmanned ships using sails is on the rise. Sail drones can be used for marine surveys, monitoring, and pollution management. Therefore, in this study, using the method of estimating the ship speed for twin sail drones, the optimal conditions for sailing are checked, and the performance to be considered in the initial design stage, such as the motion performance and resistance of the sail drone. Consequently, the twin sail drone had a speed lower than 2.0 m/s, and the stability satisfied the rule by DNV. In addition, the maximum speed at an angle of attack of 20° at TWA 100° was 1.69 m/s and that at an angle of attack of 25° at TWA 100° was 1.74 m/s.

Effect of Ground Calcium Carbonate Modified by Washless Multilayering of Polyelectrolytes on Paper Quality (무세척 고분자전해질 다층흡착 처리된 중질탄산칼슘이 종이의 품질에 미치는 영향)

  • Lee, Jegon;Im, Wanhee;Sim, Kyujeong;Lee, Hak Lae;Youn, Hye Jung
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.47 no.4
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    • pp.115-126
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    • 2015
  • In this study, we investigated influence of ground calcium carbonate (GCC) modified by washless multilayering of polyelectrolytes on paper quality. Three layers of polyelectrolytes (cationic starch/anionic polyacrylamide/cationic starch) were formed on the surface of GCC using laboratory inline washless polyelectrolytes multilayering system, which was called inline LbL GCC. Base papers were prepared with untreated GCC or inline LbL GCC using a laboratory handsheet former. These handsheets were coated with rod coater, and then printed by black ink. Properties of base paper and fold crack of coated paper were evaluated. Base paper with inline LbL GCC showed much higher mechanical strength in terms of tensile index, strain, internal bond strength, and folding endurance. The fold crack of coated paper with inline LbL GCC occurred more frequently compared to coated paper with untreated GCC. This might be due to highly improved internal bond strength of base paper, which resulted in smaller delamination that played a role of stress dissipation. It would be recommended to design a proper coating layer in order to prevent fold crack.

A Clustered Reconfigurable Interconnection Network BIST Based on Signal Probabilities of Deterministic Test Sets (결정론적 테스트 세트의 신호확률에 기반을 둔 clustered reconfigurable interconnection network 내장된 자체 테스트 기법)

  • Song Dong-Sup;Kang Sungho
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.42 no.12
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    • pp.79-90
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    • 2005
  • In this paper, we propose a new clustered reconfigurable interconnect network (CRIN) BIST to improve the embedding probabilities of random-pattern-resistant-patterns. The proposed method uses a scan-cell reordering technique based on the signal probabilities of given test cubes and specific hardware blocks that increases the embedding probabilities of care bit clustered scan chain test cubes. We have developed a simulated annealing based algorithm that maximizes the embedding probabilities of scan chain test cubes to reorder scan cells, and an iterative algorithm for synthesizing the CRIN hardware. Experimental results demonstrate that the proposed CRIN BIST technique achieves complete fault coverage with lower storage requirement and shorter testing time in comparison with the conventional methods.

Displacement Ductility Ratio of Reinforced Concrete Bridge Piers with Lap-splices (주철근 겹침이음 비율에 따른 RC교각의 연성능력 평가)

  • Park, Kwang-Soon;Ju, Hyeong-Seok;Shin, Hyun-Mock;Kim, Moon-Kyum
    • Journal of the Earthquake Engineering Society of Korea
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    • v.12 no.6
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    • pp.1-12
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    • 2008
  • As internal and external seismic experiment results, the seismic performance of RC bridge piers is largely dependent on the ratio of lap-spliced bars to all longitudinal reinforcing bars in plastic hinge regions, and confining effects of transverse reinforcements. Capacity and displacement ductility of non-seismically designed existing RC piers are reduced by lap splices in plastic hinge regions. The provision for the lap splice of longitudinal reinforcing bars was not specified in KBDS (Korean Bridge Design Specifications) before the implementation of 1992 seismic design code, but the ratio of lap-spliced bars to all longitudinal reinforcing bars in plastic hinge regions is restricted to 50% in the 2005 version of KBDS. This paper presents a seismic assessment of RC piers at lap-splicing ratios of 0%, 50%, and 100%. Through a comparison of experimental and analytic results of RC piers, we introduce an appropriate ultimate strain of confined concrete in plastic hinge regions with lap-splices, and propose a method for estimating displacement ductility ratios of non-seismically designed existing RC piers using fiber element analysis.

Performance Comparison of UWB DS-CDMA/OFDM/MC-CDMA System in S-V Channel Environment (S-V채널 환경에서 UWB DS-CDMA/OFDM/MC-CDMA 시스템 성능 비교)

  • Lee Hyung-Ki;Kwak Kyung-Sup
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.42 no.11
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    • pp.53-60
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    • 2005
  • In this paper, we analyze the performance of UWB MC-CDMA system and compareit with DS-CDMA and OFDM systems, which have been drafting in standardization even now. Too many Rake Fingers are needed in the DS-CDMA system to separate multi-path signals, which results in highsystem complexity. OFDM radio power fails to qualify for FCC certification unless frequency hopping. From this reason, MC-CDMA system considered is proposed in this paper. It has lower complexity compared with DS-CDMA and shows good performance against frequency selective fading. In addition, for a wide-band communication, less radio power per spectrum is allowed in the MC-CDMA system than in an OFDM system. Simulation result show that the DS-CDMA system has better performance with single user, but MC-CDMA system shows best performance in case of multi user environment.