• Title/Summary/Keyword: Radial graph

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Multi-Region based Radial GCN algorithm for Human action Recognition (행동인식을 위한 다중 영역 기반 방사형 GCN 알고리즘)

  • Jang, Han Byul;Lee, Chil Woo
    • Smart Media Journal
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    • v.11 no.1
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    • pp.46-57
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    • 2022
  • In this paper, multi-region based Radial Graph Convolutional Network (MRGCN) algorithm which can perform end-to-end action recognition using the optical flow and gradient of input image is described. Because this method does not use information of skeleton that is difficult to acquire and complicated to estimate, it can be used in general CCTV environment in which only video camera is used. The novelty of MRGCN is that it expresses the optical flow and gradient of the input image as directional histograms and then converts it into six feature vectors to reduce the amount of computational load and uses a newly developed radial type network model to hierarchically propagate the deformation and shape change of the human body in spatio-temporal space. Another important feature is that the data input areas are arranged being overlapped each other, so that information is not spatially disconnected among input nodes. As a result of performing MRGCN's action recognition performance evaluation experiment for 30 actions, it was possible to obtain Top-1 accuracy of 84.78%, which is superior to the existing GCN-based action recognition method using skeleton data as an input.

Major gene interactions effect identification on the quality of Hanwoo by radial graph (방사형그래프를 활용한 한우의 품질관련 주요 유전자 상호작용 효과 규명)

  • Lee, Jea-Young;Bae, Jae-Young;Lee, Jin-Mok;Oh, Dong-Yep;Lee, Seong-Won
    • Journal of the Korean Data and Information Science Society
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    • v.24 no.1
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    • pp.151-159
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    • 2013
  • It is well known that disease of human and economic traits of livestock are affected a lot by gene combination effect rather than a single gene effect. But existing methods have disadvantages such as heavy computing, many expenses and long time. In order to overcome those drawbacks, SNPHarvester was developed to find the main gene combinations among the many genes. In this paper, we used the superior gene combination which are related to the quality of the Korean beef cattle among sets of SNPs by SNPHarvester, and identified the superior genotypes using radial graph which can enhance various qualities of Korean beef among selected SNP combinations.

The effect investigation of the delirium by Bayesian network and radial graph (베이지안 네트워크와 방사형 그래프를 이용한 섬망의 효과 규명)

  • Lee, Jea-Young;Bae, Jae-Young
    • Journal of the Korean Data and Information Science Society
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    • v.22 no.5
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    • pp.911-919
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    • 2011
  • In recent medical analysis, it becomes more important to looking for risk factors related to mental illness. If we find and identify their relevant characteristics of the risk factors, the disease can be prevented in advance. Moreover, the study can be helpful to medical development. These kinds of studies of risk factors for mental illness have mainly been discussed by using the logistic regression model. However in this paper, data mining techniques such as CART, C5.0, logistic, neural networks and Bayesian network were used to search for the risk factors. The Bayesian network of the above data mining methods was selected as most optimal model by applying delirium data. Then, Bayesian network analysis was used to find risk factors and the relationship between the risk factors are identified through a radial graph.

Computing EMF of Salient Pole Rotor Type Single Phase SRM (돌극형 회전자 단상 SRM의 유도기전력 산출)

  • Kim, Jun-Ho;Lee, Eun-Woong;Oh, Young-Woong;Lee, Min-Myung
    • Proceedings of the KIEE Conference
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    • 2001.07b
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    • pp.868-870
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    • 2001
  • Salient pole rotor type single phase SRM(switched reluctance motor) can be use axial direction magnetic flux and radial direction magnetic flux at the same time. Then, it has higher energy density per unit volume and can be lessened the shaft length of motor or exciting magnetic force. Additionally, it's durability is good because it is simple structure and driving device. Prototype of Salient pole rotor type single phase SRM was fabricated by using parameters of three phase SRM and 3D FEM analysis. Also, driving device was fabricated for prototype. Speed and torque characteristic was confirmed through the experiments, and flux linkage, which is important parameter of SRM for generating torque, was measured. The induction emf was calculated by using ideal inductance graph and current graph. Calculated emf and measured emf was compared for confirming loss of prototype in this paper.

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Low Noise Design of Rotor-Bearing System (축-베어링계의 저소음 설계)

  • 노병후;김대곤;김경웅
    • Tribology and Lubricants
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    • v.19 no.1
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    • pp.15-20
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    • 2003
  • The purpose of the paper is to investigate the effects of design parameters on the noise of a rotor- bearing system supported in oil lubricated journal bearings. Effects of radial clearance and width of the bearing, lubricant viscosity and mass eccentricity of the rotor are also examined. Numerical results of the parametric studies are summarized through graph for the A-weighted sound pressure level of the bearing with respect to the rotational speed of the rotor. Results show that the sound pressure level of the bearing is markedly influenced by the mass eccentricity of the rotor and the radial clearance and the width of the bearing. The high viscosity of the lubricant slightly decreases the noise of the bearing, but its effect is relatively very low at high speed. The results of the paper could be an aid in the low noise design of rotor-bearing system supported in oil lubricated journal bearings.

Effects on the Proton Conduction Limiting Barriers and Trajectories in BaZr0.875Y0.125O3 Due to the Presence of Other Protons

  • Gomez, Maria A.;Fry, Dana L.;Sweet, Marie E.
    • Journal of the Korean Ceramic Society
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    • v.53 no.5
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    • pp.521-528
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    • 2016
  • Kinetic Monte Carlo (KMC) and graph searches show that proton conduction limiting barriers and trajectories in $BaZr_{0.875}Y_{0.125}O_3$ are affected by the presence of other protons. At 1000 K, KMC limiting conduction barriers increase from 0.39 eV to 0.45 eV as the proton number is increased. The proton-proton radial distribution begins to rise at $2{\AA}$ and peaks at $4{\AA}$, which is half the distance expected, based on the proton concentration. Density functional theory (DFT) calculations find proton/proton distances of 2.60 and $2.16{\AA}$ in the lowest energy two-proton configurations. A simple average of the limiting barriers for 7-10 step periodic long range paths found via graph theory at 1100 K shows an increase in activation barrier from 0.32 eV to 0.37 eV when a proton is added. Both KMC and graph theory show that protons can affect each other's pathways and raise the overall conduction barriers.

A Research of characteristics of left/right pulse wave and blood vessel using Korean medicine pulse diagnosis (맥진기를 이용한 좌우 맥파 및 혈관 특성 연구)

  • Kang, JinHo;Lee, Han-Byul;Kim, Ki-Wang;Kwon, Jung-Nam;Lee, Byung-Ryul
    • The Journal of Korean Medicine
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    • v.35 no.3
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    • pp.155-165
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    • 2014
  • Objectives: The pulse diagnosis to identify the symptoms has been considered important in Korean medicine. The position and character of disease would be confirmed by pulse diagnosis of left and right radial artery. This paper is to analyze the characteristics and differences of left and right blood vessels. Methods: In this study, left and right radial artery and dorsalis pedis artery was measured and analyzed by using condenser typed pulse analyzer. Commercially available pulse analyzer was used to measure the radial artery. The pulse wave was measured in 20 laboratory healthy men and women. The blood vessel aging degree and index of augmentation of blood vessel was obtained from the measured pulse wave graph and the characteristics and differences of the left and right blood vessel was analyzed. Results: The significant difference of pulse transit time between the right handed and non-right handed was not found. The correlation of radial artery and dorsalis pedis artery had no significant difference. By obtaining the blood vessel aging index (AGI) and augmentation index (AI) of blood vessel at the left and right radial artery, the significant difference between right handed and non-right handed was not found. Conclusions: The result of this study would help to explain the characteristic of blood vessel with respect to the left and right handed. We suggest that research of pulse wave of the left and right blood vessel using pulse analyzer should be needed in further study.

THE HYDROMAGNETIC FLOW BETWEEN ECCENTRIC CYLINDERS WITH VELOCITY SLIP AT THE CYLINDER WALLS

  • Meena, S.;Kandaswamy, P.
    • Journal of applied mathematics & informatics
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    • v.6 no.2
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    • pp.487-502
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    • 1999
  • The hydrodynamic flow between two eccentric cylinders is examined for small values of modified Reynolds number porosity parameter and the non-dimensional slip velocity parameter in the presence of a radial magnetic field. The stream function and the pres-sure distribution are calculated and the results are presented graph-ically.

Effects of Ethanol Mixing Ratio on Spray Characteristics of Triplet Impinging Injector (에탄올 혼합비에 따른 3중 충돌형 인젝터의 분무특성)

  • Lee, In-Chul;Kim, Jong-Hyun;Koo, Ja-Ye
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.15 no.4
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    • pp.1-8
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    • 2007
  • Spray characteristics of a unlike triplet injector were investigated experimentally. Spray images and SMD of droplet were measured to evaluate the spray characteristics injected by liquid/gas combinations. G-L-G(Gas-Liquid-Gas), L-G-L(Liquid-Gas-Liquid) type of injector were used by changing the gas and liquid feed lines. The SMD graph shows that the droplet sizes decrease in the out of radial direction at a fixed gas Reynolds number. The SMD value of decreasing tendency shows that the more ethyl alcohol ratio increase, the more SMD value decrease.

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