scholarly journals The impact of edema and fiber crossing on diffusion MRI metrics assessed in an ex vivo nerve phantom: Multi‐tensor model vs. diffusion orientation distribution function

2020 ◽  
Vol 34 (1) ◽  
Author(s):  
Zezhong Ye ◽  
Sam E. Gary ◽  
Peng Sun ◽  
Sourajit Mitra Mustafi ◽  
George Russell Glenn ◽  
...  
Keyword(s):  
Distribution Function ◽  
Orientation Distribution Function ◽  
Diffusion Mri ◽  
Ex Vivo ◽  
Orientation Distribution ◽  
Tensor Model ◽  
The Impact

scholarly journals Diffusion MRI Fiber Orientation Distribution Function Estimation Using Voxel-Wise Spherical U-Net

2021 ◽  
pp. 95-106
Author(s):  
Sara Sedlar ◽  
Théodore Papadopoulo ◽  
Rachid Deriche ◽  
Samuel Deslauriers-Gauthier
Keyword(s):  
Distribution Function ◽  
Orientation Distribution Function ◽  
Fiber Orientation ◽  
Diffusion Mri ◽  
Orientation Distribution ◽  
Function Estimation ◽  
Fiber Orientation Distribution ◽  
Distribution Function Estimation

On-Line Determination of Texture in Deep Drawing Steel Sheet by Two-Dimensional X-Ray Diffraction

2012 ◽  
Vol 572 ◽  
pp. 322-327 ◽  
Author(s):  
An Min Yin ◽  
Quan Yang ◽  
Xiao Chen Wang ◽  
Fei He ◽  
You Zhao Sun
Keyword(s):  
Distribution Function ◽  
Orientation Distribution Function ◽  
Deep Drawing ◽  
Orientation Distribution ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
On Line ◽  
The Impact

This paper described the application of a diffraction system based on X-ray area detector on pole figure measurement as well as corresponding computation of orientation distribution functions and the principle of rapid measurement texture. The impact of calculates the orientation distribution function on the conditions of the two-dimensional X-ray diffraction was analyzed; this was illustrated by an example of deep drawing steel sheets texture measurement. ̙̈́˰͇̱̓˰̶̴̿̾ͅ˰̸̱̈́̈́˰̷̱̹͂̿̈́̈́̾˰̸̵̈́˰͇̈́̿˽̴̵̹̹̱̼̽̾̓̿̾˰̴̵̵̳̈́̈́̿͂˰̈́̿˰̸̵̈́˰̵̱̹̱̀̀͂̿̀͂̈́˰̂θ position then fix it, reduce the sample rotation; the texture determination time can be significantly reduced. Reduce the Measuring range of angle χ˰̴̱̾ φ˰̴̵̿̓˰̾̿̈́˰̶̶̵̱̳̈́˰̸̵̈́ calculation of orientation distribution function, it also can significantly reduce the measurement of diffraction data. Several technical problems appeared on the on-line determination of texture based on an X-ray two-dimensional detector system and the possibility to improve the measurement speed and accuracy in the industrial production applications were then discussed.

Influence of extinction phenomenon on determination of the orientation distribution function

2006 ◽  
Vol 2006 (suppl_23_2006) ◽  
pp. 175-180
Author(s):  
G. Gómez-Gasga ◽  
T. Kryshtab ◽  
J. Palacios-Gómez ◽  
A. de Ita de la Torre
Keyword(s):  
Distribution Function ◽  
Orientation Distribution Function ◽  
Orientation Distribution

The modified component method for calculation of orientation distribution function from pole figures

2010 ◽  
Vol 18 (1) ◽  
pp. 163-171 ◽  
Author(s):  
T.M. Ivanova ◽  
T.I. Savyolova ◽  
M.V. Sypchenko
Keyword(s):  
Distribution Function ◽  
Orientation Distribution Function ◽  
Orientation Distribution ◽  
Component Method ◽  
Pole Figures

A software for diffraction stress factor calculations for textured materials

2012 ◽  
Vol 27 (2) ◽  
pp. 114-116 ◽  
Author(s):  
Thomas Gnäupel-Herold
Keyword(s):  
Distribution Function ◽  
Pole Figure ◽  
Elastic Constants ◽  
Orientation Distribution Function ◽  
Lattice Strain ◽  
Orientation Distribution ◽  
Crystallite Orientation ◽  
Interaction Models ◽  
Grain Interaction ◽  
Textured Materials

A software for the calculation of diffraction elastic constants (DEC) for materials both with and without preferred orientation was developed. All grain-interaction models that can use the crystallite orientation distribution function (ODF) are incorporated, including Kröner, Hill, inverse Kröner, and Reuss. The functions of the software include: reading the ODF in common textual formats, pole figure calculation, calculation of DEC for different (hkl,φ,ψ), calculation of anisotropic bulk constants from the ODF, calculation of macro-stress from lattice strain and vice versa, as well as mixture ratios of (hkl) of overlapped reflections in textured materials.

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