Results 31 to 40 of about 2,666,070 (302)

Numerical modelling of diffusion-limited mineral growth for geospeedometry applications [PDF]

open access: yesGeoscientific Model Development
Diffusion and crystal growth are common processes in nature and can be observed in rocks that have experienced relatively high temperatures. Information about these processes is stored in the composition gradients of minerals.
A. Stroh   +5 more
doaj   +1 more source

Multiscale autoregressive models and wavelets [PDF]

open access: yesIEEE Transactions on Information Theory, 1999
The multiscale autoregressive (MAR) framework was introduced to support the development of optimal multiscale statistical signal processing. Its power resides in the fast and flexible algorithms to which it leads. While the MAR framework was originally motivated by wavelets, the link between these two worlds has been previously established only in the ...
Khalid Daoudi   +2 more
openaire   +4 more sources

Arylic C–X Bond Activation by Palladium Catalysts: Activation Strain Analyses of Reactivity Trends

open access: yesScientific Reports, 2018
We have quantum chemically explored arylic carbon–substituent bond activation via oxidative insertion of a palladium catalyst in C6H5X + PdLn model systems (X = H, Cl, CH3; Ln = no ligand, PH3, (PH3)2, PH2C2H4PH2) using relativistic density functional ...
Pascal Vermeeren   +2 more
doaj   +1 more source

Multiscale modeling in disease

open access: yesCurrent Opinion in Systems Biology, 2021
Multiscale computational modeling aims to connect the complex networks of effects at different length and/or time scales. For example, these networks often include intracellular molecular signaling, crosstalk, and other interactions between neighboring cell populations, and higher levels of emergent phenomena across different regions of tissues and ...
openaire   +2 more sources

Ensemble Kalman Filter For Multiscale Inverse Problems

open access: yes, 2020
We present a novel algorithm based on the ensemble Kalman filter to solve inverse problems involving multiscale elliptic partial differential equations.
Abdulle, Assyr   +5 more
core   +1 more source

Coarse-grained modeling of multiscale diffusions : the p-variation estimates [PDF]

open access: yes, 2010
We study the problem of estimating parameters of the limiting equation of a multiscale diffusion in the case of averaging and homogenization, given data from the corresponding multiscale system.
Papavasiliou, Anastasia   +1 more
core   +1 more source

The influence of lattice misfit on screw and edge dislocation-controlled solid solution strengthening in Mo-Ti alloys

open access: yesCommunications Materials, 2023
Mo-Ti alloys form solid solutions over a wide range of compositions, with lattice misfit parameters increasing significantly with titanium content. This indicates a strong increase in the critical stress for edge dislocation motion.
Georg Winkens   +11 more
doaj   +1 more source

Online Multiscale Finite Element Simulation of Thermo-Mechanical Model with Phase Change

open access: yesComputation, 2023
This paper presents a thermo-mechanical model with phase transition considering changes in the mechanical properties of the medium. The proposed thermo-mechanical model is described by a system of partial differential equations for temperature and ...
Dmitry Ammosov, Maria Vasilyeva
doaj   +1 more source

Multiscale modeling methods in biomechanics [PDF]

open access: yesWIREs Systems Biology and Medicine, 2017
More and more frequently, computational biomechanics deals with problems where the portion of physical reality to be modeled spans over such a large range of spatial and temporal dimensions, that it is impossible to represent it as a single space–time continuum. We are forced to consider multiple space–time continua, each representing the phenomenon of
Bhattacharya, P., Viceconti, M.
openaire   +5 more sources

Hybrid continuum–molecular modelling of multiscale internal gas flows [PDF]

open access: yes, 2013
We develop and apply an efficient multiscale method for simulating a large class of low-speed internal rarefied gas flows. The method is an extension of the hybrid atomistic–continuum approach proposed by Borg et al.
Reese, Jason M.   +3 more
core   +1 more source

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