• Title/Summary/Keyword: K-point

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A study on diagnosis method by chonguinyoung pulse(寸口人迎脈診) based on 《Youngchu·Kyoungmaek 靈樞·經脈》 (《영추(靈樞)·경맥(經脈)》의 촌구인영맥진(寸口人迎脈診)에 관(關)한 연구(硏究))

  • Sin, Kwang-Sun;Jang, Jun-Hyuk;Yoon, Jong-Hwa
    • Journal of Acupuncture Research
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    • v.19 no.1
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    • pp.203-209
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    • 2002
  • Objective : The chonguinyoung pulse diagnosis method is convenient than twelve meridian pulse diagnosis method The $\ll$Maek-bup(脉法)$\gg$ are founded at Mawangtweo(馬王堆) of the han dynasty tomb in 1973, but it could diagnosis the exsitance of illness of twelve meridian also . Methods : In accordance to $\ll$Naekuoung(內經)$\gg$ inyoungmaek(人迎脈) in could be taken at the which is the pulse point of carotid artery on the line of foot yangmyoung stomach meridian (足陽明胃經) and chongumaek (寸口脈) at the taeyoun acu-point (太淵穴) pulse point on the line of hand taeyeun lung meridian (手太陰肺經). Results : Chonguinyoung pulse diagnosis method could be emphased on the point of diagnosing sick person and healthy person by the balance of yin (陰) yan (陽) composition in the body. Conclusion : Chonguinyoung pulse diagnosis method could be the indication of improvement and progress of disease also it could be adapt to diagnosis of twelve meridian and it is impossible to making choice of acupuncture, medication, moxibustion, vene-section and strengthing-eleminating treatment method (補瀉方法).

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Research on the Basic Rodrigues Rotation in the Conversion of Point Clouds Coordinate System

  • Xu, Maolin;Wei, Jiaxing;Xiu, Hongling
    • Journal of Information Processing Systems
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    • v.16 no.1
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    • pp.120-131
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    • 2020
  • In order to solve the problem of point clouds coordinate conversion of non-directional scanners, this paper proposes a basic Rodrigues rotation method. Specifically, we convert the 6 degree-of-freedom (6-DOF) rotation and translation matrix into the uniaxial rotation matrix, and establish the equation of objective vector conversion based on the basic Rodrigues rotation scheme. We demonstrate the applicability of the new method by using a bar-shaped emboss point clouds as experimental input, the three-axis error and three-term error as validate indicators. The results suggest that the new method does not need linearization and is suitable for optional rotation angle. Meanwhile, the new method achieves the seamless splicing of point clouds. Furthermore, the coordinate conversion scheme proposed in this paper performs superiority by comparing with the iterative closest point (ICP) conversion method. Therefore, the basic Rodrigues rotation method is not only regarded as a suitable tool to achieve the conversion of point clouds, but also provides certain reference and guidance for similar projects.

An experimental study on the resistance and movement of short pile installed in sands under horizontal pullout load

  • Kwon, Oh Kyun;Kim, Jin-Bok;Kweon, Hyuck-Min
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.6 no.1
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    • pp.87-97
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    • 2014
  • In this study, the model tests were conducted on the short piles installed in sands under a horizontal pullout load to investigate their behavior characteristics. From the horizontal loading tests where dimensions of the pile diameter and length, and loading point were varied, the horizontal pullout resistance and the rotational and translational movement pattern of the pile were investigated. As a result, the horizontal pullout resistance of the pile embedded in sands was dependent on the pile length, diameter, loading point, etc. The ultimate horizontal pullout load tended to increase as the loading point (h/L) moved to the bottom from the top of the pile, regardless of the ratio between the pile length and diameter (L/D), reached the maximum value at the point of h/L = 0.75, and decreased afterwards. When the horizontal pullout load acted on the upper part above the middle of the pile, the pile rotated clockwise and moved to the pullout direction, and the pivot point of the pile was located at 150-360mm depth below the ground surface. On the other hand, when the horizontal pullout load acted on the lower part of the pile, the pile rotated counterclockwise and travelled horizontally, and the rotational angle was very small.

Measuring the Location of PC8 Acupuncture Point Using X-ray Radiography in Healthy Adults (X선 촬영을 통한 노궁(勞宮)의 혈위에 대한 고찰)

  • Koo, Sung-Tae;Kim, Sung-Chul;Kim, Yong-Suk;Kang, Sung-Keel;Choi, Sun-Mi
    • Korean Journal of Oriental Medicine
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    • v.16 no.3
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    • pp.123-126
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    • 2010
  • Objective : There are controversial opinions on the location of PC8 (Nogung). The one is to localize the point between the 2nd and 3rd metacarpal bone, the other is to localize the point between the 3rd and 4th metacarpal bone. The study was performed to provide an experimental evidence to standardize the location of PC8 point. Methods : We employed 30 healthy adults evenly in sex. To identify the location of PC8 in the hand, we took X-ray photograph in both hands of participants. Thin layer of leads were pasted on to PC7 and tip of middle finger prior to take X-ray photograph. The line connecting two points corresponding to the leads in X-ray film was read by a radiologist to decide that the line passes which side between the 2nd metacarpal space and the 3rd one. Results and Conclusions: The line passed the 3rd metacarpal space in 49 cases out of 60 hands (82 %). Data suggest that PC8 could be localized at the point between the 3rd and 4th metacarpal bone.

Optimized Low-Switching-Loss PWM and Neutral-Point Balance Control Strategy of Three-Level NPC Inverters

  • Xu, Shi-Zhou;Wang, Chun-Jie;Han, Tian-Cheng;Li, Xue-Ping;Zhu, Xiang-Yu
    • Journal of Power Electronics
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    • v.18 no.3
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    • pp.702-713
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    • 2018
  • Power loss reduction and total harmonic distortion(THD) minimization are two important goals of improving three-level inverters. In this paper, an optimized pulse width modulation (PWM) strategy that can reduce switching losses and balance the neutral point with an optional THD of three-level neutral-point-clamped inverters is proposed. An analysis of the two-level discontinuous PWM (DPWM) strategy indicates that the optimal goal of the proposed PWM strategy is to reduce switching losses to a minimum without increasing the THD compared to that of traditional SVPWMs. Thus, the analysis of the two-level DPWM strategy is introduced. Through the rational allocation of the zero vector, only two-phase switching devices are active in each sector, and their switching losses can be reduced by one-third compared with those of traditional PWM strategies. A detailed analysis of the impact of small vectors, which correspond to different zero vectors, on the neutral-point potential is conducted, and a hysteresis control method is proposed to balance the neutral point. This method is simple, does not judge the direction of midpoint currents, and can adjust the switching times of devices and the fluctuation of the neutral-point potential by changing the hysteresis loop width. Simulation and experimental results prove the effectiveness and feasibility of the proposed strategy.

A Compatibility Assessment and Verification of Suitable to DICOM of PACS DATA CD : Current Situation Investigation of Korea (PACS DATA CD의 호환성 평가 및 DICOM 적합성에 대한 검증을 통한 기준 제시)

  • Jeong, Jae-Ho;Sung, Dong-Wook;Park, Bum-Jin;Son, Gi-Gyeong;Kang, Hui-Doo
    • Korean Journal of Digital Imaging in Medicine
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    • v.10 no.1
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    • pp.29-34
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    • 2008
  • Purpose To analyze the input and output error of data CD which records the image information and the problems of the server of the compatibility. And to report a compatibility assessment and verification of suitable to DICOM of PACS data CD with investigation of current situation of Korea METHOD AND MATERIALS Date CD of each 8 vendors in 30 hospitals was analyzed. We grasped a main verification element existence of a generation compatibility of data CD. The items of element are media identification, DICOM compression, DICOM viewer send, specified object information modify, auto-run, DICOM content type, etc, and give 1 point for each item. We divided the assessment about an each item into 5 levels. Verification about. DICOM conformance by using DICOM validation tool kit is shown to be classified pass or fail according to error occurrence of tag valus. Classify the prequency of tag occurrence as the item. RESULTS The average point of date CD compatibility is 8 point (very good), lowest is 5 point (6.6%), and highest is 10 point (23%_. Most high occurrence frequency's distribution is 7 point (36.6%). As a result of verification about DICOM conformance, PASS in 8 occurrence frequency's distribution is 7 point (36.6%). As a result of verification about DICOM maximum length numbers (14 items), DICOM error of modality (10 items), discord of pixel data length (6 items). etc.

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A Way-Point Tracking of Hovering AUV by PID control (PID 제어기를 이용한 호버링 AUV의 경유점 추적)

  • Kim, Min J.;Bae, Seol B.;Baek, Woon-Kyung;Joo, Moon G.;Ha, Kyoung Nam
    • IEMEK Journal of Embedded Systems and Applications
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    • v.10 no.4
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    • pp.257-264
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    • 2015
  • For the tracking of the way-points of hovering AUV (HAUV), we suggest a simple PID controller. The way-points are designed to approach to a virtual underwater structure and the heading angles at each way-point are set to look at the structure in the face. The proposed controller consists of a vertical controller to maintain the depth and pitch angle, and a horizontal controller to move to the desired position as well as to adjust the heading angle of the HAUV. In the simulation using Matlab/Simulink, the HAUV with the proposed PID controller is shown to track all the way-points within 1 m range while maintaining proper heading angle at each way-point.

Voltage-Mode 1.5 Gbps Interface Circuits for Chip-to-Chip Communication

  • Lee, Kwang-Jin;Kim, Tae-Hyoung;Cho, Uk-Rae;Byun, Hyun-Geun;Kim, Su-Ki
    • ETRI Journal
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    • v.27 no.1
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    • pp.81-88
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    • 2005
  • In this paper, interface circuits that are suitable for point-to-point interconnection with an over 1 Gbps data rate per pin are proposed. To achieve a successful data transfer rate of multi-gigabits per-second between two chips with a point-to-point interconnection, the input receiver uses an on-chip parallel terminator of the pass gate style, while the output driver uses the pullup and pulldown transistors of the diode-connected style. In addition, the novel dynamic voltage level converter (DVLC) has solved such problems as the access time increase and valid data window reduction. These schemes were adopted on a 64 Mb DDR SRAM with a 1.5 Gbps data rate per pin and fabricated using a 0.10 ${\mu}m$ dual gate oxide CMOS technology.

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Evaluation of the Effectiveness of Low Impact Development Practices in an Urban Area: Non-point Pollutant Removal Measures using EPA-SWMM (EPA-SWMM을 이용한 LID 기법의 비점오염 저감효과 분석)

  • Cho, SeonJu;Kang, MinJi;Kwon, Hyeok;Lee, JaeWoon;Kim, Sangdan
    • Journal of Korean Society on Water Environment
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    • v.29 no.4
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    • pp.466-475
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    • 2013
  • Non-point source pollution management is one of the most important issues in Korean water quality/watershed management. In recent years, Low Impact Development (LID) has emerged as an effective approach to control stormwater in an urban area. This study illustrates how to design and evaluate the effect of non-point pollutant management using EPA-SWMM LID module and suggests design parameters for modeling LID facilities. In addition, optimal installation locations of LID can be determined by a simple distributed hydrologic model by using SWMM for a long-term.

Optimal Power Flow Using Affine Scaling interior Point Method (Affine Scaling Interior Point Method를 이용한 최적조류계산)

  • Kim, Kyung-Min;Park, Jung-Sung;Han, Seok-Man;Chung, Koo-Hyung;Kim, Bal-Ho H.
    • Proceedings of the KIEE Conference
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    • 2005.11b
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    • pp.156-158
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    • 2005
  • This paper presents an Optimal Power Flow (OPF) algorithm using Interior Point Method (IPM) to swiftly and precisely perform the five minute dispatch. This newly suggested methodology is based on Affine Sealing Interior Point Method (AS IPM), which is favorable for large-scale problems involving many constraints. It is also eligible for OPF problems in order to improve the calculation speed and the preciseness of its resultant solutions. Big-M Method is also used to improve the solution stability. Finally, this paper provides a relevant case study to confirm the efficiency of the proposed methodology.

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