Results 241 to 250 of about 593,106 (293)

EU preparedness and ICU capacity: where are the beds? [PDF]

Intensive Care Med
Ebm C, De Waele JJ, Cecconi M.
europepmc   +1 more source

Network geometry, topology, and spectral analysis in global stock markets: Insights from using the Ricci curvature, Euler characteristic, and random matrix theory. [PDF]

PLoS One
Domínguez-Monterroza A, Jiménez-Martín A, Mateos Caballero A.   +2 more
europepmc   +1 more source

Pediatric sepsis prediction: Human in the loop framework. [PDF]

PLOS Digit Health
Nagarajan R, Godambe SA, Paul R, Tennant R, Anand KJS, Sandhu E, Abrahamson N, Gibbs D, Golden C, Celi LA, Martel S.   +10 more
europepmc   +1 more source

A Deep Learning Model to Guide Personalized Mechanical Circulatory Support Use in Cardiogenic Shock Patients Undergoing PCI. [PDF]

JACC Adv
Amin AP, Bach RG, Brilakisa ES, Tsang DC, Zheng WS, Qarajeh RA, Kulkarni H.   +6 more
europepmc   +1 more source

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On the spectral properties of shock-capturing schemes

Journal of Computational Physics, 2006
In this short note we analyze the performance of nonlinear, shock-capturing schemes in wavenumber space. For this purpose we propose a new representation for the approximate dispersion relation which accounts to leading order for nonlinear effects. Several examples are presented, which confirm that the present theory yields an improved qualitative ...
Sérgio Pirozzoli
exaly   +3 more sources

Recognition of shock-wave patterns from shock-capturing solutions.

, 2012
A new technique for detecting shock waves and recognising the shock patterns in compressible flow solutions computed by means of shock-capturing solvers is proposed and discussed. This newly developed technique uses the Hough transform and a least squares fit to further post-process the data provided by a classical shock detection technique based on ...
PACIORRI, Renato, Aldo Bonfiglioli
core   +3 more sources

Accurate detection of shock waves and shock interactions in two-dimensional shock-capturing solutions

Journal of Computational Physics, 2020
Abstract This paper describes an innovative technique that is capable of automatically detecting shock-wave shapes and shock-interaction patterns by post-processing the results obtained from a shock-capturing calculation using any of the available, state-of-the-art, shock-detection techniques.
Renato Paciorri, Aldo Bonfiglioli
openaire   +3 more sources

Shock-Fitting Versus Shock-Capturing Modeling of Strong Shocks in Nonequilibrium Plasmas

IEEE Transactions on Plasma Science, 2014
In this paper, a supersonic flow of an argon plasma around a cylinder has been investigated comparing shock fitting and shock capturing techniques. Shock-capturing codes are algorithmically simple, but are plagued by a number of numerical troubles, particularly evident when the shocks are strong and the grids unstructured.
Pepe Raffaele, Bonfiglioli Aldo, D'Angola Antonio, Colonna Gianpiero, Paciorri Renato   +4 more
openaire   +5 more sources

Lie Symmetry Preservation and Shock-Capturing Methods

SIAM Journal on Numerical Analysis, 2008
It is known that some traditional shock-capturing schemes, including Godunov- or Roe-type schemes, generate downstream oscillatory wave patterns that cannot be effectively dampened by the dissipation methods they provide. The theme of this paper is to understand the formation and behavior at these upstream/downstream patterns from the point view of the
exaly   +3 more sources