scholarly journals A fast-reciprocating probe array for two-dimensional measurements in the divertor region of the Tokamak à configuration variable

2021 ◽  
Vol 92 (4) ◽  
pp. 043547
Author(s):  
H. De Oliveira ◽  
C. Theiler ◽  
H. Elaian ◽  
Keyword(s):  
Two Dimensional ◽  
Dimensional Measurements ◽  
Probe Array

Analysis of the 9th November 1990 flare

2000 ◽  
Vol 179 ◽  
pp. 229-232
Author(s):  
Anita Joshi ◽  
Wahab Uddin
Keyword(s):  
Image Processing ◽  
Two Dimensional ◽  
Temporal Behaviour ◽  
Contour Maps ◽  
Dimensional Measurements ◽  
Processing Software ◽  
Image Processing Software

AbstractIn this paper we present complete two-dimensional measurements of the observed brightness of the 9th November 1990Hαflare, using a PDS microdensitometer scanner and image processing software MIDAS. The resulting isophotal contour maps, were used to describe morphological-cum-temporal behaviour of the flare and also the kernels of the flare. Correlation of theHαflare with SXR and MW radiations were also studied.

Compressed Sensing of IR-UWB Wireless Sensor Network Data Based on Two-Dimensional Measurements

2015 ◽  
Vol 24 (3) ◽  
pp. 627-632 ◽  
Author(s):  
Kai Wang ◽  
Xiaojun Jing ◽  
Yulin Liu ◽  
Qun Wan
Keyword(s):  
Wireless Sensor Network ◽  
Compressed Sensing ◽  
Sensor Network ◽  
Wireless Sensor ◽  
Network Data ◽  
Two Dimensional ◽  
Dimensional Measurements

The hippocampus: detailed assessment of normative two-dimensional measurements, signal intensity, and subfield conspicuity on routine 3T T2-weighted sequences

2017 ◽  
Vol 39 (10) ◽  
pp. 1149-1159 ◽  
Author(s):  
Erik H. Middlebrooks ◽  
Ronald G. Quisling ◽  
Michael A. King ◽  
Paul R. Carney ◽  
Steven Roper ◽  
...  
Keyword(s):  
Signal Intensity ◽  
Two Dimensional ◽  
Dimensional Measurements ◽  
Detailed Assessment ◽  
Weighted Sequences

Evaluation and Development of Automatic Two-Dimensional Measurements of Histomorphometric Parameters Reflecting Trabecular Bone Connectivity: Correlations with Dual-Energy X-Ray Absorptiometry and Quantitative Ultrasound in Human Calcaneum

2005 ◽  
Vol 77 (4) ◽  
pp. 195-204 ◽  
Author(s):  
Nathalie R. Portero ◽  
Monique E. Arlot ◽  
Jean-Paul Roux ◽  
François Duboeuf ◽  
Pascale M. Chavassieux ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Quantitative Ultrasound ◽  
Dual Energy ◽  
Two Dimensional ◽  
X Ray ◽  
Dimensional Measurements

scholarly journals Three-Dimensional Coordination Number from Two-Dimensional Measurements: A New Method

1986 ◽  
Vol 32 (112) ◽  
pp. 391-396 ◽  
Author(s):  
Richard B. Alley
Keyword(s):  
Coordination Number ◽  
Three Dimensional ◽  
New Method ◽  
Two Dimensional ◽  
Shape Factors ◽  
Important Measure ◽  
Dimensional Measurements ◽  
Average Bond

AbstractThe average three-dimensional coordination number, n3, is an important measure of firn structure. The value of n3 can be estimated from n2, the average measured two-dimensional coordination number, and from a function, Γ, that depends only on the ratio of average bond radius to grain radius in the sample. This method is easy to apply and does not require the use of unknown shape factors or tunable parameters.

scholarly journals A Review of Surface Deformation and Strain Measurement Using Two-Dimensional Digital Image Correlation

2016 ◽  
Vol 23 (3) ◽  
pp. 461-480 ◽  
Author(s):  
Sze-Wei Khoo ◽  
Saravanan Karuppanan ◽  
Ching-Seong Tan
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Measurement ◽  
Surface Deformation ◽  
Optical Measurement ◽  
Image Correlation ◽  
Two Dimensional ◽  
Full Field ◽  
Computation Efficiency ◽  
Dimensional Measurements

Abstract Among the full-field optical measurement methods, the Digital Image Correlation (DIC) is one of the techniques which has been given particular attention. Technically, the DIC technique refers to a non-contact strain measurement method that mathematically compares the grey intensity changes of the images captured at two different states: before and after deformation. The measurement can be performed by numerically calculating the displacement of speckles which are deposited on the top of object’s surface. In this paper, the Two-Dimensional Digital Image Correlation (2D-DIC) is presented and its fundamental concepts are discussed. Next, the development of the 2D-DIC algorithms in the past 33 years is reviewed systematically. The improvement of 2DDIC algorithms is presented with respect to two distinct aspects: their computation efficiency and measurement accuracy. Furthermore, analysis of the 2D-DIC accuracy is included, followed by a review of the DIC applications for two-dimensional measurements.

scholarly journals Automated three-dimensional measurements of version, inclination, and subluxation

2019 ◽  
Vol 12 (1) ◽  
pp. 31-37
Author(s):  
Dave R Shukla ◽  
Richard J McLaughlin ◽  
Julia Lee ◽  
Ngoc Tram V Nguyen ◽  
Joaquin Sanchez-Sotelo
Keyword(s):  
Computed Tomography ◽  
Image Analysis ◽  
Three Dimensional ◽  
Automated Image Analysis ◽  
Two Dimensional ◽  
Analysis Software ◽  
Glenoid Version ◽  
Image Analysis Software ◽  
Planning Software ◽  
Dimensional Measurements

Background Preoperative planning software has been developed to measure glenoid version, glenoid inclination, and humeral head subluxation on computed tomography (CT) for shoulder arthroplasty. However, most studies analyzing the effect of glenoid positioning on outcome were done prior to the introduction of planning software. Thus, measurements obtained from the software can only be extrapolated to predict failure provided they are similar to classic measurements. The purpose of this study was to compare measurements obtained using classic manual measuring techniques and measurements generated from automated image analysis software. Methods Ninety-five two-dimensional computed tomography scans of shoulders with primary glenohumeral osteoarthritis were measured for version according to Friedman method, inclination according to Maurer method, and subluxation according to Walch method. DICOM files were loaded into an image analysis software (Blueprint, Wright Medical) and the output was compared with values obtained manually using a paired sample t-test. Results Average manual measurements included 13.8° version, 13.2° inclination, and 56.2% subluxation. Average image analysis software values included 17.4° version (3.5° difference, p < 0.0001), 9.2° inclination (3.9° difference, p < 0.001), and 74.2% for subluxation (18% difference, p < 0.0001). Conclusions Glenoid version and inclination values from the software and manual measurement on two-dimensional computed tomography were relatively similar, within approximately 4°. However, subluxation measurements differed by approximately 20%.

scholarly journals Quantification of brain atrophy in multiple sclerosis using two-dimensional measurements

2020 ◽  
Vol 35 (6) ◽  
pp. 433-435
Author(s):  
A.I. Pérez-Álvarez ◽  
P. Suárez-Santos ◽  
M. González-Delgado ◽  
P. Oliva-Nacarino
Keyword(s):  
Multiple Sclerosis ◽  
Brain Atrophy ◽  
Two Dimensional ◽  
Dimensional Measurements
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