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ZIP学术海报模板+论文科研+研究生

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资源文件列表:

Poster.zip 大约有98个文件
  1. Poster/
  2. Poster/13imr-heart.ppt 11.33MB
  3. Poster/CMS-Poster_template48x36-Pro.ppt 1.15MB
  4. Poster/PosterPresentations.com-36x48-Template-V5.pptx 648KB
  5. Poster/PosterPresentations.com-36x48-Template-V6.pptx 646.66KB
  6. Poster/PosterPresentations.com-36x48-Template-V7.pptx 645.35KB
  7. Poster/PosterPresentations.com-36x48-Template-V8.pptx 646.23KB
  8. Poster/PosterPresentations.com-36x48-Template-V9.pptx 674.27KB
  9. Poster/PosterPresentations.com-A0-Template-V5.pptx 500.6KB
  10. Poster/PosterPresentations.com-A1-Template-V6 (1).pptx 499.4KB
  11. Poster/PosterPresentations.com-A3-Template-V5 (1).pptx 500.61KB
  12. Poster/Postertemplate-Vertical 36x48.potx 83.9KB
  13. Poster/bacteria_vert_36x48.ppt 2.28MB
  14. Poster/bacteria_vert_42x42.ppt 2.28MB
  15. Poster/bacteria_vert_42x48.ppt 2.28MB
  16. Poster/blueBevel_24x48.ppt 100KB
  17. Poster/blueBevel_36x48.ppt 106KB
  18. Poster/blueBevel_36x54.ppt 101KB
  19. Poster/blueBevel_42x42.ppt 111KB
  20. Poster/blueBevel_42x48.ppt 105KB
  21. Poster/blueFade_24x48.ppt 67KB
  22. Poster/blueFade_36x48.ppt 73KB
  23. Poster/blueFade_36x54.ppt 71KB
  24. Poster/blueFade_42x42.ppt 74.5KB
  25. Poster/blueFade_42x48.ppt 76KB
  26. Poster/bluegreen_24x48.ppt 39KB
  27. Poster/bluegreen_36x48.ppt 43KB
  28. Poster/bluegreen_36x54.ppt 41KB
  29. Poster/bluegreen_42x42.ppt 49KB
  30. Poster/bluegreen_42x48.ppt 46KB
  31. Poster/children_24x48.ppt 2.8MB
  32. Poster/children_36x48.ppt 2.81MB
  33. Poster/children_42x42.ppt 2.48MB
  34. Poster/children_42x48.ppt 2.81MB
  35. Poster/cycleGreen_square_42.ppt 59.5KB
  36. Poster/hexagon_24x48.ppt 1.58MB
  37. Poster/ovalGreen_24x48.ppt 137KB
  38. Poster/ovalGreen_36x48.ppt 158.5KB
  39. Poster/ovalGreen_36x54.ppt 154.5KB
  40. Poster/ovalGreen_42x42.ppt 162.5KB
  41. Poster/ovalGreen_42x48.ppt 159.5KB
  42. Poster/postertemplate.ppt 754.5KB
  43. Poster/purplepeach_24x48.ppt 285KB
  44. Poster/purplepeach_36x48.ppt 290.5KB
  45. Poster/purplepeach_36x54.ppt 291.5KB
  46. Poster/purplepeach_42x42.ppt 296.5KB
  47. Poster/purplepeach_42x48.ppt 293.5KB
  48. Poster/style_a_36_48_tall.ppt 22KB
  49. Poster/style_a_42_48_tall.ppt 22KB
  50. Poster/style_a_square_42.ppt 23.5KB
  51. Poster/style_b_24_48_wide.ppt 31KB
  52. Poster/style_b_36_48_wide.ppt 37KB
  53. Poster/style_b_36_54_wide(2).ppt 33KB
  54. Poster/style_b_36_54_wide.ppt 33KB
  55. Poster/style_b_42_48_wide.ppt 31KB
  56. Poster/style_b_square_42.ppt 32KB
  57. Poster/style_c_24_48_wide.ppt 46.5KB
  58. Poster/style_c_36_48_wide.ppt 46.5KB
  59. Poster/style_c_36_54_wide.ppt 50KB
  60. Poster/style_c_42_48_wide.ppt 54.5KB
  61. Poster/style_c_square_42.ppt 45.5KB
  62. Poster/style_d_24_48_wide.ppt 29.5KB
  63. Poster/style_d_36_48_wide.ppt 32KB
  64. Poster/style_d_36_54_wide.ppt 31KB
  65. Poster/style_d_42_48_wide.ppt 31.5KB
  66. Poster/style_d_square_42.ppt 32.5KB
  67. Poster/style_e_24_48_wide.ppt 38.5KB
  68. Poster/style_e_36_48_wide.ppt 34.5KB
  69. Poster/style_e_36_54_wide.ppt 32.5KB
  70. Poster/style_e_42_48_wide.ppt 37.5KB
  71. Poster/style_e_square_42.ppt 42KB
  72. Poster/style_f_24_48_wide.ppt 41.5KB
  73. Poster/style_f_36_48_wide.ppt 41KB
  74. Poster/style_f_36_54_wide.ppt 39KB
  75. Poster/style_f_42_48_wide.ppt 209KB
  76. Poster/style_f_square_42.ppt 47KB
  77. Poster/style_g_24_48_wide.ppt 33KB
  78. Poster/style_g_36_48_wide.ppt 37.5KB
  79. Poster/style_g_36_54_wide.ppt 38KB
  80. Poster/style_g_42_48_wide.ppt 49.5KB
  81. Poster/style_g_square_42.ppt 46.5KB
  82. Poster/style_k_24_48_wide.ppt 35.5KB
  83. Poster/style_k_36_48_wide.ppt 40KB
  84. Poster/style_k_36_54_wide.ppt 39.5KB
  85. Poster/style_k_42_48_wide.ppt 43KB
  86. Poster/style_k_square_42.ppt 46.5KB
  87. Poster/style_m_24_48_wide.ppt 31.5KB
  88. Poster/style_m_36_48_wide.ppt 37KB
  89. Poster/style_m_36_54_wide.ppt 39KB
  90. Poster/style_m_42_48_wide.ppt 41.5KB
  91. Poster/style_m_square_42.ppt 44KB
  92. Poster/surgeon_24x48.ppt 1.08MB
  93. Poster/surgeon_36x48.ppt 1.03MB
  94. Poster/surgeon_42x42.ppt 389KB
  95. Poster/surgeon_42x48.ppt 1.04MB
  96. Poster/会议墙报.pptx 632.31KB
  97. Poster/学术会议海报模板1.ppt 92KB
  98. Poster/学术海报模板2.pptx 210.98KB

资源介绍:

学术海报模板+研究生
Abstract: This poster presents technical details to generate an adaptive and quality tetrahedral finite element mesh of a human heart. An educational model and a patient-specific model are constructed. There are three main steps in our mesh generation: model
acquisition, mesh extraction and boundary/material layer detection. (1) Model acquisition. Beginning from an educational polygonal model, we edit and convert it to volumetric gridded data. A component index for each cell edge and grid point is computed to assist
the boundary and material layer detection. For the patient-specific model, some boundary points are selected from MRI images, and connected using cubic splines and lofting to segment the MRI data. Different components are identified. (2) Mesh extraction. We
extract adaptive and quality tetrahedral meshes from the volumetric gridded data using our Level Set Boundary and Interior-Exterior Mesher (LBIE-Mesher). The mesh adaptivity is controlled by regions or using a feature sensitive error function. (3)
Boundary/material layer detection. The boundary of each component and multiple material layers are identified and meshed. The extracted tetrahedral mesh of the educational model is being utilized in the analysis of cardiac fluid dynamics via immersed continuum
method, and the generated patient-specific model will be used in simulating the electrical activity of the heart.
Finite Element Meshing for Cardiac Analysis
Yongjie (Jessica) Zhang*, Chandrajit L. Bajaj*, Thomas J. R. Hughes*, Wing Kam Liu
†
, Grace Chen
†
, Xiaodong Wang
#
,
Marius Lysaker
‡
, Christian Tarrou
‡
*ICES & CS, Univ. of Texas at Austin
†
ME, Northwestern Univ.
#
ME, Polytechnic Univ.
‡
Simula Research Lab, Norway
* Please contact jessica@ices.utexas.edu for further information.
References
1. Y. Zhang, C. Bajaj. Finite Element Meshing for Cardiac Analysis. ICES Technical Report 04-26, the Univ. of
Texas at Austin , 2004.
2. Y. Zhang, C. Bajaj, B.-S. Sohn. 3D Finite Element Meshing from Imaging Data. Accepted in the special issue of
CMAME on Unstructured Mesh Generation. 2004.
3. Y. Zhang, C. Bajaj, B.-S. Sohn. Adaptive and Quality 3D Meshing from Imaging Data, ACM Symposium on Solid
Modeling and Applications. pp. 286-291, Seattle, June 2003.
4. The World’s Best Anatomical Charts. Anatomical Chart Company Skokie, IL. ISBN 0-9603730-5-5.
5. Acknowledgements: Thank NYU for providing the educational polygonal heart model, Helena Hanninen from
Helsinki Univ. Central Hospital in Finland for MRI scanned data.
13
th
International Meshing Roundtable, Williamsburg, Virginia, September 19-22, 2004
aortic valve tricuspid valve pulmonary valve mitral valve
1. An Educational Model
Fig. 1. Heart Anatomy Model from [4]
1.1 Model Acquisition
An educational polygonal model is modified and converted into volumetric gridded
data using the signed distance method. The heart model is decomposed into twenty-
two components as shown in Table 1. Additional volume data indicating which
component each grid point and each cell edge belong to is also calculated.
1.2 Mesh Extraction
We choose the extended Dual
Contouring method to construct the
tetrahedral heart model from volumetric
gridded data [2][3] because it takes
isosurfaces as boundaries and can
generate adaptive and quality meshes for
complicated structures.
1.3 Boundary/Material Layer
Detection
We first select some points in each slice of the MRI data, then connect them smoothly
using cubic splines and lofting. In this way, we segment the MRI data into four
regions: the background (0), the heart muscle (81), the left ventricle (162) and the right
ventricle (243). We use the same method to generate adaptive tetrahedral meshes,
which will be used in the simulation of the electronic activity of the heart.
Fig. 2. The original model from NYU* and the modified
model. Note*: With permission of New York University, Copyright 1994-2004.
aortic valve pulmonary valvetricuspid valve mitral valve
Original foramen ovale Modified foramen ovale
Original Model Modified Model
Tab. 1. The corresponding relationship between
the component/boundary index, components and
their colors. The heart model is decomposed into
twenty-two components as shown in Fig. 2.
Fig. 3. Boundary Detection
Fig. 4. Material Layer Detection
1.4 Application and Results
Before material layer detection After material layer detection
Application: The heart model is put inside a cubic
container, and all the blood vessels are extended to the
container boundary. The constructed meshes is being
used in the simulation of blood flow using immersed
continuum method, the distribution of velocity, shear
stress, pressure and locations of flow recirculation are
analyzed. It is useful for the heart valve design and the
understanding of blood circulation disease.
2. A Patient-specific Model
Volume rendering
The heart inside the human body
Manually digitized slicesRaw MRI data Continuous model
The heart model with extensions The heart model immersed in the fluid mesh
Fig. 5. The resulting adaptive and quality tetrahedral mesh for the cardiac model and the
heart model used in the simulation of blood flow.
Smooth shading
Smooth shading + wireframe
A cross section of tetrahedral mesh
Fig. 6. Interior/exterior meshes of a patient-specific heart.
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