Validation study of the ability of density functionals to predict the planar-to-three-dimensional structural transition in anionic gold clusters

2009 ◽  
Vol 131 (6) ◽  
pp. 064706 ◽  
Author(s):  
Manjeera Mantina ◽  
Rosendo Valero ◽  
Donald G. Truhlar
Keyword(s):  
Validation Study ◽  
Structural Transition ◽  
Three Dimensional ◽  
Gold Clusters ◽  
Density Functionals

scholarly journals Nonlocal effects on the structural transition of gold clusters from planar to three-dimensional geometries

RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20989-20999 ◽  
Author(s):  
Ping Wu ◽  
Qingxiu Liu ◽  
Gang Chen
Keyword(s):  
Structural Transition ◽  
Three Dimensional ◽  
Gold Clusters ◽  
Structural Transitions ◽  
Nonlocal Effects ◽  
Cationic Gold

Nonlocal effects may be important for determining the 2D–3D structural transitions of anionic, neutral, and cationic gold clusters.

scholarly journals Three dimensional assessment of segmented Le Fort I osteotomy planning and follow-up: a validation study

2021 ◽  
pp. 103707
Author(s):  
Oliver da Costa Senior ◽  
Lukas Vaes ◽  
Delphine Mulier ◽  
Reinhilde Jacobs ◽  
Constantinus Politis ◽  
...  
Keyword(s):  
Validation Study ◽  
Three Dimensional ◽  
Le Fort I Osteotomy ◽  
Le Fort ◽  
Dimensional Assessment ◽  
Le Fort I

scholarly journals Aeroelasticity Validation Study for a Three-Dimensional Membrane Wing

AIAA Journal ◽  
2018 ◽  
Vol 56 (6) ◽  
pp. 2361-2371 ◽  
Author(s):  
H. Q. Yang ◽  
J. Dudley ◽  
R. E. Harris
Keyword(s):  
Validation Study ◽  
Three Dimensional ◽  
Membrane Wing

scholarly journals The validation study on a three-dimensional burn estimation smart-phone application: accurate, free and fast?

2018 ◽  
Vol 6 ◽  
Author(s):  
A. K. W. Cheah ◽  
T. Kangkorn ◽  
E. H. Tan ◽  
M. L. Loo ◽  
S. J. Chong
Keyword(s):  
Surface Area ◽  
Body Surface Area ◽  
Body Surface ◽  
Validation Study ◽  
Total Body Surface Area ◽  
Three Dimensional ◽  
Smart Phone ◽  
Conventional Methods ◽  
Total Body ◽  
Smart Phone Application

Abstract Background Accurate total body surface area burned (TBSAB) estimation is a crucial aspect of early burn management. It helps guide resuscitation and is essential in the calculation of fluid requirements. Conventional methods of estimation can often lead to large discrepancies in burn percentage estimation. We aim to compare a new method of TBSAB estimation using a three-dimensional smart-phone application named 3D Burn Resuscitation (3D Burn) against conventional methods of estimation—Rule of Palm, Rule of Nines and the Lund and Browder chart. Methods Three volunteer subjects were moulaged with simulated burn injuries of 25%, 30% and 35% total body surface area (TBSA), respectively. Various healthcare workers were invited to use both the 3D Burn application as well as the conventional methods stated above to estimate the volunteer subjects’ burn percentages. Results Collective relative estimations across the groups showed that when used, the Rule of Palm, Rule of Nines and the Lund and Browder chart all over-estimated burns area by an average of 10.6%, 19.7%, and 8.3% TBSA, respectively, while the 3D Burn application under-estimated burns by an average of 1.9%. There was a statistically significant difference between the 3D Burn application estimations versus all three other modalities (p < 0.05). Time of using the application was found to be significantly longer than traditional methods of estimation. Conclusions The 3D Burn application, although slower, allowed more accurate TBSAB measurements when compared to conventional methods. The validation study has shown that the 3D Burn application is useful in improving the accuracy of TBSAB measurement. Further studies are warranted, and there are plans to repeat the above study in a different centre overseas as part of a multi-centre study, with a view of progressing to a prospective study that compares the accuracy of the 3D Burn application against conventional methods on actual burn patients.

scholarly journals Density Stratification Effects on the Thermal Convection in a Rotating Spherical Shell

2001 ◽  
Vol 203 ◽  
pp. 195-197
Author(s):  
N. Nishikawa ◽  
K. Kusano
Keyword(s):  
Spherical Shell ◽  
Thermal Convection ◽  
Structural Transition ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Density Stratification ◽  
Nonlinear Convection ◽  
Solar Convection Zone ◽  
Solar Convection ◽  
The Stability

The density stratification effects on the thermal convection in a rotating spherical shell, which is the representative of the solar convection zone, are investigated by three dimensional numerical simulations. It is found that, the convection structure in the strongly stratified system is switched from parallel cells aligned to the rotation axis to zonal rolles dominated by the longitudinally averaged mode, as the Rayleigh number increases much larger than the stability threshold. Corresponding to this structural transition, the averaged kinetic helicity reverses the sign in each hemisphere (from negative to positive in the northern hemisphere). The results indicate that the density stratification is much important for the nonlinear convection process in the rotating spherical shell.

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