Effects of cylindrical particle properties on pile formation

Author(s):  
Xu Tian ◽  
Heng Zhou ◽  
Junren Qin ◽  
Wei Cao ◽  
Mingyin Kou ◽  
...  
Author(s):  
H.J. Dudek

The chemical inhomogenities in modern materials such as fibers, phases and inclusions, often have diameters in the region of one micrometer. Using electron microbeam analysis for the determination of the element concentrations one has to know the smallest possible diameter of such regions for a given accuracy of the quantitative analysis.In th is paper the correction procedure for the quantitative electron microbeam analysis is extended to a spacial problem to determine the smallest possible measurements of a cylindrical particle P of high D (depth resolution) and diameter L (lateral resolution) embeded in a matrix M and which has to be analysed quantitative with the accuracy q. The mathematical accounts lead to the following form of the characteristic x-ray intens ity of the element i of a particle P embeded in the matrix M in relation to the intensity of a standard S


Particuology ◽  
2021 ◽  
Author(s):  
Jing Zhang ◽  
Jinshuo Qiao ◽  
Kening Sun ◽  
Zhenhua Wang

Author(s):  
Asmita Bhandare ◽  
Susanne Pfalzner

Abstract Most stars form as part of a stellar group. These young stars are mostly surrounded by a disk from which potentially a planetary system might form. Both, the disk and later on the planetary system, may be affected by the cluster environment due to close fly-bys. The here presented database can be used to determine the gravitational effect of such fly-bys on non-viscous disks and planetary systems. The database contains data for fly-by scenarios spanning mass ratios between the perturber and host star from 0.3 to 50.0, periastron distances from 30 au to 1000 au, orbital inclination from 0∘ to 180∘ and angle of periastron of 0∘, 45∘ and 90∘. Thus covering a wide parameter space relevant for fly-bys in stellar clusters. The data can either be downloaded to perform one’s own diagnostics like for e.g. determining disk size, disk mass, etc. after specific encounters, obtain parameter dependencies or the different particle properties can be visualized interactively. Currently the database is restricted to fly-bys on parabolic orbits, but it will be extended to hyperbolic orbits in the future. All of the data from this extensive parameter study is now publicly available as DESTINY.


Chemosphere ◽  
2021 ◽  
pp. 130763
Author(s):  
Yongsun Jang ◽  
Han-Shin Kim ◽  
Jeong-Hoon Lee ◽  
So-Young Ham ◽  
Jeong-Hoon Park ◽  
...  

1986 ◽  
Vol 17 (3) ◽  
pp. 592-596
Author(s):  
H.D. Seehars ◽  
D. Hochrainer ◽  
M. Spiekermann

2018 ◽  
Vol 333 ◽  
pp. 404-409 ◽  
Author(s):  
Weining Xie ◽  
Yaqun He ◽  
Lili Qu ◽  
Xiaolu Sun ◽  
Xiangnan Zhu

Icarus ◽  
1992 ◽  
Vol 99 (2) ◽  
pp. 302-317 ◽  
Author(s):  
Wayne R. Pryor ◽  
Robert A. West ◽  
Karen E. Simmons ◽  
Mona Delitsky

2020 ◽  
Author(s):  
Markus Konrad Karrer ◽  
Stefan Kneifel ◽  
Davide Ori ◽  
Christoph Siewert ◽  
Axel Seifert ◽  
...  
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