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The Study of Tilting Control System for Korea Tilting Vehicle (한국형 틸팅차량의 틸팅제어장치에 관한 연구)

  • Lee, Su-Gil
    • Proceedings of the KIEE Conference
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    • 2006.10d
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    • pp.235-237
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    • 2006
  • Tilting trains are now an established feature of railway operations throughout the world For intercity traffic, tilt provides operators with Increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantagraph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantagraph for the Power suppling device is very essential for stable electric power supply.

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A Study on the Stereo Infrared Image Enhancement (스테레오 적외선영상의 이미지 향상에 관한 연구)

  • 류재훈;김윤호;류광렬
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.05a
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    • pp.171-174
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    • 2003
  • This paper is a study on the 3D infrared image enhancement with Stereoscopic algorithm on still infrared image. The adapted stereo method is that the depth is extracted by comparison with right-left image, and the enhanced 3D infrared image by matching based on feature is realized. As the result of experiment this method forced the more smooth edge lines of 3D infrared images.

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The Study of Tilting Control System for Curve Line Speed-Up (곡선선로 속도향상을 위한 열차틸팅제어장치에 관한 연구)

  • Lee, Su-Gil;Han, Seong-Ho;Song, Yong-Soo;Han, Young-Jae;Lee, Woo-Dong
    • Proceedings of the KIEE Conference
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    • 2004.10a
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    • pp.248-250
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    • 2004
  • Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantagraph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantagraph for the power suppling device is very essential for stable electric power supply.

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The Study of Performance Test of Conventional Curve Line for Korean Tilting Train (한국형 틸팅열차 곡선부 성능시험 연구)

  • Lee, Su-Gil
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.1211_1212
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    • 2009
  • Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantagraph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantagraph for the power suppling device is very essential for stable electric power supply.

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The Study of Tilting Control System Improvement of Korean Tilting Train (한국형 틸팅열차 틸팅제어시스템 성능향상 연구)

  • Lee, Su-Gil
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.1199_1200
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    • 2009
  • Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantagraph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantagraph for the power suppling device is very essential for stable electric power supply.

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Recognition of Individual Cattle by His and /or Her Voice

  • Yoshio, Ikeda;Yohei, Ishii
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1998.06b
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    • pp.270-275
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    • 1998
  • It was assumed that the voice of cattle is generated with the virtual white noise through the digital filter called the linear prediction filter, and filter parameters (prediction coefficients) were estimated by the maximum entropy method (MEM) , using the sound signal of the animal . The feature planes were defined by the pairs of two parameters selected appropriately from these parameters. The cattle voices were divided into three levels, that is the high, medium and low levels according to their total power equivalent to the variances of the sound signal . It was found that the straight lines could be used for recognizing tow cow and one calf for high level voices. For high and medium level voices, however, it was difficult or impossible to recognize individual cattle on the parameters planes.

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The Corridor Scene Analysis for a Motorized Wheelchair's Automatic Locomotion (전동휠체어 자동 주행을 위한 복도영상 해석)

  • Moon, Cheol-Hong;Han, Yeong-Hwan;Hong, Seung-Hong
    • Journal of Biomedical Engineering Research
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    • v.15 no.1
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    • pp.27-34
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    • 1994
  • In this paper. a way to analysis a corridor scene for a vehicle's automatic locomotion is presented In general, it's necessary for a vision system of vehicles to identify its positions in given environments. The suggested algorithm is to decide base lines of a corridor image using the vanishing point finding. Feature points are extracted on the base line using a base line extraction tree. This algorithm is suitable for a motorized wheelchair's self locomotion in a building.

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Nonlinear consolidation of soft clays subjected to cyclic loading - Part I: theory

  • Yazdani, Hessam;Toufigh, Mohammad Mohsen
    • Geomechanics and Engineering
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    • v.4 no.4
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    • pp.229-241
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    • 2012
  • In this paper, utilizing void ratio-effective stress and void ratio-permeability relationships, a system of two nonlinear partial differential equations is derived to predict the consolidation characteristics of normally consolidated (NC) and overconsolidated (OC) soft clays subjected to cyclic loading. A developed feature of the coefficient of consolidation containing two key parameters is emerged from the differential equations. Effect of these parameters on the consolidation characteristics of soft clays is analytically discussed. It is shown that the ratios between the slopes of e-$log{\sigma}^{\prime}$ and e-log k lines in the NC and OC states play a major role in the consolidation process. In the companion paper, the critical assumptions made in the analytical discussion are experimentally verified and a numerical study is carried out in order to examine the proposed theory.

The Study of Tilting System Combination Test of EMU Tilting Train (전기차량의 틸팅시스템 인터페이스 조합시험에 관한 연구)

  • Lee, Su-Gil
    • Proceedings of the KIEE Conference
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    • 2006.10c
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    • pp.253-256
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    • 2006
  • Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantagraph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantagraph for the power suppling device is very essential for stable electric power supply.

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The Study of Tilting Control Hardware System for TTX(Tilting Train eXpress) (TTX 차량 틸팅제어를 위한 하드웨어 시스템 기술연구)

  • Lee Su-Gil;Han Seong-Ho;Song Young-Soo;Lee Woo-Dong;Han Young-Jae
    • Proceedings of the KSR Conference
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    • 2004.06a
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    • pp.1388-1390
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    • 2004
  • Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect $30\%$ of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantograph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantograph for the power suppling device is very essential for stable electric power supply.

  • PDF