scholarly journals Quantitative three-dimensional power Doppler angiography: a flow-free phantom experiment to evaluate the relationship between color gain, depth and signal artifact

2010 ◽  
Vol 35 (3) ◽  
pp. 361-368 ◽  
Author(s):  
W. P. Martins ◽  
N. J. Raine-Fenning ◽  
R. A. Ferriani ◽  
C. O. Nastri
Keyword(s):  
Power Doppler ◽  
Three Dimensional ◽  
Phantom Experiment ◽  
The Relationship

Determining the relationship between three-dimensional power Doppler data and true blood flow characteristics: anin-vitroflow phantom experiment

2008 ◽  
Vol 32 (4) ◽  
pp. 540-550 ◽  
Author(s):  
N. J. Raine-Fenning ◽  
N. M. Nordin ◽  
K. V. Ramnarine ◽  
B. K. Campbell ◽  
J. S. Clewes ◽  
...  
Keyword(s):  
Blood Flow ◽  
Power Doppler ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Phantom Experiment ◽  
Doppler Data ◽  
True Blood ◽  
The Relationship

scholarly journals Evaluation of the effect of machine settings on quantitative three-dimensional power Doppler angiography: anin-vitroflow phantom experiment

2008 ◽  
Vol 32 (4) ◽  
pp. 551-559 ◽  
Author(s):  
N. J. Raine-Fenning ◽  
N. M. Nordin ◽  
K. V. Ramnarine ◽  
B. K. Campbell ◽  
J. S. Clewes ◽  
...  
Keyword(s):  
Power Doppler ◽  
Three Dimensional ◽  
Phantom Experiment

scholarly journals OP15.06: Influence of attenuation upon three-dimensional power Doppler indices and STIC volumetric pulsatility index: a flow-phantom experiment

2013 ◽  
Vol 42 (s1) ◽  
pp. 90-90
Author(s):  
A. H. Miyague ◽  
T. Z. Pavan ◽  
F. W. Grillo ◽  
D. M. Teixeira ◽  
C. O. Nastri ◽  
...  
Keyword(s):  
Pulsatility Index ◽  
Power Doppler ◽  
Three Dimensional ◽  
Phantom Experiment ◽  
Flow Phantom ◽  
Doppler Indices

scholarly journals Influence of attenuation on three-dimensional power Doppler indices and STIC volumetric pulsatility index: a flow phantom experiment

2013 ◽  
Vol 43 (1) ◽  
pp. 103-105 ◽  
Author(s):  
A. H. Miyague ◽  
T. Z. Pavan ◽  
F. W. Grillo ◽  
D. M. Teixeira ◽  
C. O. Nastri ◽  
...  
Keyword(s):  
Pulsatility Index ◽  
Power Doppler ◽  
Three Dimensional ◽  
Phantom Experiment ◽  
Flow Phantom ◽  
Doppler Indices

scholarly journals Dynamics of Single Droplet Splashing on Liquid Film by Coupling FVM with VOF

Processes ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 841
Author(s):  
Yuzhen Jin ◽  
Huang Zhou ◽  
Linhang Zhu ◽  
Zeqing Li
Keyword(s):  
Liquid Film ◽  
Weber Number ◽  
Stokes Equations ◽  
Numerical Study ◽  
Three Dimensional ◽  
Navier Stokes ◽  
Single Droplet ◽  
Navier Stokes Equations ◽  
Volume Method ◽  
The Relationship

A three-dimensional numerical study of a single droplet splashing vertically on a liquid film is presented. The numerical method is based on the finite volume method (FVM) of Navier–Stokes equations coupled with the volume of fluid (VOF) method, and the adaptive local mesh refinement technology is adopted. It enables the liquid–gas interface to be tracked more accurately, and to be less computationally expensive. The relationship between the diameter of the free rim, the height of the crown with different numbers of collision Weber, and the thickness of the liquid film is explored. The results indicate that the crown height increases as the Weber number increases, and the diameter of the crown rim is inversely proportional to the collision Weber number. It can also be concluded that the dimensionless height of the crown decreases with the increase in the thickness of the dimensionless liquid film, which has little effect on the diameter of the crown rim during its growth.

scholarly journals A Field Measurement Based Wind Characteristics Analysis of a Typhoon in Near-Ground Boundary Layer

Atmosphere ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 873
Author(s):  
Dandan Xia ◽  
Liming Dai ◽  
Li Lin ◽  
Huaifeng Wang ◽  
Haitao Hu
Keyword(s):  
Turbulence Intensity ◽  
Field Measurement ◽  
Three Dimensional ◽  
Wind Data ◽  
Statistical Characteristics ◽  
Gust Factor ◽  
Characteristics Analysis ◽  
Wind Characteristics ◽  
The Mean ◽  
The Relationship

The field measurement was conducted to observe the wind field data of West Pacific typhoon “Maria” in this research. With the application of ultrasonic anemometers installed in different heights (10 m, 80 m, 100 m) of the tower, the three dimensional wind speed data of typhoon “Maria” was acquired. In addition, vane-type anemometers were installed to validate the accuracy of the wind data from ultrasonic anemometers. Wind characteristics such as the mean wind profile, turbulence intensity, integral length scale, and wind spectrum are studied in detail using the collected wind data. The relationship between the gust factor and turbulence intensity was also studied and compared with the existing literature to demonstrate the characteristics of Maria. The statistical characteristics of the turbulence intensity and gust factor are presented. The corresponding conclusion remarks are expected to provide a useful reference for designing wind-resistant buildings and structures.

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