• Title/Summary/Keyword: slices

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Thermally Stimulated Currents in Aged XLPE Cable Insulation (열화된 XLPE 케이블의 열지급전류)

  • Kim, Sang-Joon;Lee, Nam-Woo;Cheong, Dong-Won;Ko, In-Suk
    • Proceedings of the KIEE Conference
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    • 1991.07a
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    • pp.221-223
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    • 1991
  • In order to evaluate degradation of the aged power cables, thin slices(200m) cut from the aged cables were prepared for thermally stimulated current measurements. Throughout the temperature range, 140 to $280^{\circ}C$ the TSC is greater for the aged material, and sharp peak is observed at $158^{\circ}C$ and $210^{\circ}C$.

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A Study on the Quantification Error due to the Reconstruction Filters in Single Photon Emission Computed Tomography(SPECT) (단일광자방출 전산화단층촬영상에서 재구성 필터에 의한 정량화 오차에 관한 연구)

  • 곽철은;정준기
    • Journal of Biomedical Engineering Research
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    • v.12 no.1
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    • pp.43-48
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    • 1991
  • As the computerized methods and equipments In nuclear medicine imaging increases, quantitative information is needed on the single photon emission computed tomographic Images as well as on the conventional nuclear medicine images. In this paper, the authors investigated the effect of several clinician - friendly reconstrution filters on the resultant transverse slices of backprojected Profiles of radioisotope distribution from the Quantitative point of view, and reduced the filter parameters such as cutoff frequency and order of filter which are neces mary to minimize the quantification error using computer-generated phantoms.

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병원 종합관리 시스템

  • 조규달
    • Journal of Biomedical Engineering Research
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    • v.3 no.1
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    • pp.51-54
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    • 1982
  • As the computerized methods and equipments in nuclear medicine imaging increases, quantitative information is needed on the single photon emission computed tomographic images as well as on the conventional nuclear medicine images. In this paper, the authors investigated the effect of several clinician - friendly reconstrution filters on the resultant transverse slices of backprojected profiles of radioisotope distribution from the quantitative point of view, and reduced the filter Parameters such as cutoff frequency and order of filter which are necessary to minimize the quantification error using computer -generated phantoms.

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Slices Analysis Method of Petri nets in FMS Using the Transitive Matrix

  • Kim, Jung-Won;Lee, Jong-Kun;Song, Yu-Jin;Kim, Jong-Wook
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.132.3-132
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    • 2001
  • In this paper, we focus on the analysis of the scheduling problem in FMS after slicing off some sub-nets using the transitive matrix. This class of Time Petri nets is obtained by merging subnets based on the machine's operations. We can divide original system into some subnets based on machine's operations using Time Petri nets slice and analyze the feasibility time in each schedules. In this paper, we show the usefulness of transitive matrix to slice off some subnets from the original net, and explain on an example.

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A Tangential Cutting Algorithm for Rapid Prototyping (쾌속조형을 위한 효과적인 경사절단 알고리즘 개발)

  • 공용해;엄태준;주영철;안덕상
    • Proceedings of the IEEK Conference
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    • 2002.06c
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    • pp.55-58
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    • 2002
  • Rapid Prototyping(RP) systems, that fabricate objects with slicers, typically bear staircase artifacts when slices has a certain degree of thickness. A tangential cutting algorithm is developed in order to remove surface distortion as well as to generate smooth laser-cutting trajectory. For this, an energy function is defined with tangential line length and distance between tangential line and middle contour. Then, the energy is minimized to generate effective tangential line segments. The proposed algorithm is tested and verified on 3D object samples and the results show that the generated tangential lines effectively approximate layer surface and make laser trajectory smooth.

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Implimentation of Parallel Procssor System with Reliability (신뢰성을 고려한 병열프로세서에서 구성)

  • 고명삼;정택원
    • 전기의세계
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    • v.31 no.5
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    • pp.355-360
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    • 1982
  • In numerical computation, it is desirable to access any row or column, the main diagonal, subarrays, of a matrix without any conflict for successful parallel processing. To meet this requirement special storage scheme is used for conflict-free access of necessary data. Interconnection network, which connects processing elements and processing element memory modules, is required to execute the necessary operations. In this paper we discuss the skewing method for conflict-free, access to various bit slices and single-stage interconnection networks.

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Fast Macroblock Mode Decision for P Slices in H.264 (H.264에서 P슬라이스를 위한 고속의 매크로블럭 모드 결정 방법)

  • Park, Sung-Jae;Myung, Jin-Su;Oh, Seong-Jun
    • Proceedings of the IEEK Conference
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    • 2007.07a
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    • pp.265-266
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    • 2007
  • New coding tools require the increase of the encoder complexity in H.264. In this paper we propose a fast mode decision method to reduce the computational complexity of mode decision. The simulation results shows that the proposed methods could reduce the coding time of overall sequences by 30% on average without any noticeable degradation of the coding efficiency.

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Multi-Detector Row CT of the Central Airway Disease (Multi-Detector Row CT를 이용한 중심부 기도 질환의 평가)

  • Kang, Eun-Young
    • Tuberculosis and Respiratory Diseases
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    • v.55 no.3
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    • pp.239-249
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    • 2003
  • Multi-detector row CT (MDCT) provides faster speed, longer coverage in conjunction with thin slices, improved spatial resolution, and ability to produce high quality muliplanar and three-dimensional (3D) images. MDCT has revolutionized the non-invasive evaluation of the central airways. Simultaneous display of axial, multiplanar, and 3D images raises precision and accuracy of the radiologic diagnosis of central airway disease. This article introduces central airway imaging with MDCT emphasizing on the emerging role of multiplanar and 3D reconstruction.