Validation of a CT image based software for three-dimensional measurement of acetabular cup orientation

2011 ◽  
Vol 19 (3) ◽  
pp. 185-193 ◽  
Author(s):  
Georgi I. Wassilew ◽  
Viktor Janz ◽  
Markus Heller ◽  
Marcus Wenzl ◽  
Carsten Perka ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Ct Image ◽  
Acetabular Cup ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement

Validation of CT image-based software for three-dimensional measurement of acetabular coverage profile

2017 ◽  
Vol 25 (5) ◽  
pp. 989-1004 ◽  
Author(s):  
Marcus P. Wenzl ◽  
Markus Heller ◽  
Viktor Janz ◽  
Carsten Perka ◽  
Georgi I. Wassilew
Keyword(s):  
Three Dimensional ◽  
Ct Image ◽  
Acetabular Coverage ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement ◽  
Coverage Profile

THREE-DIMENSIONAL MEASUREMENT OF COLUMNAR JOINTING IN THE BISHOP TUFF, OWENS RIVER GORGE, CALIFORNIA

2017 ◽  
Author(s):  
Antonio M. Bird ◽  
◽  
Katherine A. Kelker ◽  
Elizabeth S. Brogden ◽  
Jeff Glazner ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Bishop Tuff ◽  
Columnar Jointing ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement

scholarly journals The first observation of 4D tomography measurement of plasma structures and fluctuations

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chanho Moon ◽  
Kotaro Yamasaki ◽  
Yoshihiko Nagashima ◽  
Shigeru Inagaki ◽  
Takeshi Ido ◽  
...  
Keyword(s):  
Steady State ◽  
Three Dimensional ◽  
Axial Direction ◽  
Axial Position ◽  
Entire Cross Section ◽  
Helicon Plasma ◽  
Emission Profile ◽  
Dimensional Measurement ◽  
Tomography System ◽  
Three Dimensional Measurement

AbstractA tomography system is installed as one of the diagnostics of new age to examine the three-dimensional characteristics of structure and dynamics including fluctuations of a linear magnetized helicon plasma. The system is composed of three sets of tomography components located at different axial positions. Each tomography component can measure the two-dimensional emission profile over the entire cross-section of plasma at different axial positions in a sufficient temporal scale to detect the fluctuations. The four-dimensional measurement including time and space successfully obtains the following three results that have never been found without three-dimensional measurement: (1) in the production phase, the plasma front propagates from the antenna toward the end plate with an ion acoustic velocity. (2) In the steady state, the plasma emission profile is inhomogeneous, and decreases along the axial direction in the presence of the azimuthal asymmetry. Furthermore, (3) in the steady state, the fluctuations should originate from a particular axial position located downward from the helicon antenna.

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