dynamical scheme
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2018 ◽  
Vol 15 (supp01) ◽  
pp. 1840005 ◽  
Author(s):  
Yuri N. Obukhov

We review the basics and the current status of the Poincaré gauge theory of gravity. The general dynamical scheme of Poincaré gauge gravity (PG) is formulated, and its physical consequences are outlined. In particular, we discuss exact solutions with and without torsion, highlight the cosmological aspects, and consider the probing of the spacetime geometry.





2016 ◽  
Vol 144 (12) ◽  
pp. 4591-4603 ◽  
Author(s):  
Michael E. Kozar ◽  
Vasubandhu Misra ◽  
Mark D. Powell

Abstract A new statistical–dynamical scheme is presented for predicting integrated kinetic energy (IKE) in North Atlantic tropical cyclones from a series of environmental input parameters. Predicting IKE is desirable because the metric quantifies the energy across a storm’s entire wind field, allowing it to respond to changes in storm structure and size. As such, IKE is especially useful for quantifying risks in large, low-intensity, high-impact storms such as Sandy in 2012. The prediction scheme, named the Statistical Prediction of Integrated Kinetic Energy, version 2 (SPIKE2), builds upon a previous statistical IKE scheme, by using a series of artificial neural networks instead of more basic linear regression models. By using a more complex statistical scheme, SPIKE2 is able to distinguish nonlinear signals in the environment that could cause fluctuations in IKE. In an effort to evaluate SPIKE2’s performance in a future operational setting, the model is calibrated using archived input parameters from Global Ensemble Forecast System (GEFS) control analyses, and is run in a hindcast mode from 1990 to 2011 using archived GEFS reforecasts. The hindcast results indicate that SPIKE2 performs significantly better than both persistence and climatological benchmarks.







2010 ◽  
Vol 36 (1-2) ◽  
pp. 19-39 ◽  
Author(s):  
Christophe Cassou ◽  
Marie Minvielle ◽  
Laurent Terray ◽  
Claire Périgaud


2010 ◽  
Vol 36 (3-4) ◽  
pp. 401-417 ◽  
Author(s):  
Marie Minvielle ◽  
Christophe Cassou ◽  
Romain Bourdallé-Badie ◽  
Laurent Terray ◽  
Julien Najac


2010 ◽  
Vol 9 (5) ◽  
pp. 661 ◽  
Author(s):  
Michel Sliwa ◽  
Nicolas Mouton ◽  
Cyril Ruckebusch ◽  
Lionel Poisson ◽  
Abdenacer Idrissi ◽  
...  


Author(s):  
Michael M. Zavlanos ◽  
Daniel E. Koditschek ◽  
George J. Pappas




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