Results 81 to 90 of about 7,720,158 (325)

Dimensionality reduction and reduced-order modeling for traveling wave physics [PDF]

Theoretical and Computational Fluid Dynamics, 2019
We develop an unsupervised machine learning algorithm for the automated discovery and identification of traveling waves in spatiotemporal systems governed by partial differential equations (PDEs). Our method uses sparse regression and subspace clustering
Ariana Mendible, S. Brunton, A. Aravkin, W. Lowrie, J. Kutz   +4 more
semanticscholar   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Reduced-Order Modeling of a Lithium-Ion Lithium Iron Phosphate Battery

Chemical Engineering Transactions, 2021
Battery energy storage systems are essential for stabilizing the intermittent power generation of renewable energy (RE) technologies. Their integration into RE systems is typically studied using energy systems modeling software that utilize either ...
Michael T. Castro, Joey D. Ocon
doaj   +1 more source

Reduced-order modeling of left ventricular flow subject to aortic valve regurgitation [PDF]

The Physics of Fluids, 2019
The present focus of heart flow studies is largely based on flow within the left ventricle and how this flow changes when subject to disease. However, despite recent advancements, a simple tractable model of even healthy left ventricular flow has not ...
Giuseppe Di Labbio, L. Kadem
semanticscholar   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Entropy stable reduced order modeling of nonlinear conservation laws [PDF]

Journal of Computational Physics, 2019
Reduced order models of nonlinear conservation laws in fluid dynamics do not typically inherit stability properties of the full order model. We introduce projection-based hyper-reduced models of nonlinear conservation laws which are globally conservative
Jesse Chan
semanticscholar   +1 more source

Reduced Order Podolsky Model [PDF]

Brazilian Journal of Physics, 2016
We perform the canonical and path integral quantizations of a lower-order derivatives model describing Podolsky's generalized electrodynamics. The physical content of the model shows an auxiliary massive vector field coupled to the usual electromagnetic field.
openaire   +2 more sources

Reduced Order Modeling for Nonlinear PDE-constrained Optimization using Neural Networks

, 2019
Nonlinear model predictive control (NMPC) often requires real-time solution to optimization problems. However, in cases where the mathematical model is of high dimension in the solution space, e.g.
Christiansen, Lasse Hjuler, Jørgensen, John Bagterp, Karup-Engsig, Allan Peter, Mücke, Nikolaj Takata   +3 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Data-Driven Filtered Reduced Order Modeling of Fluid Flows [PDF]

SIAM Journal on Scientific Computing, 2017
We propose a data-driven filtered reduced order model (DDF-ROM) framework for the numerical simulation of fluid flows. The novel DDF-ROM framework consists of two steps: (i) In the first step, we use explicit ROM spatial filtering of the nonlinear PDE to
Xuping Xie, M. Mohebujjaman, L. Rebholz, T. Iliescu   +3 more
semanticscholar   +1 more source