Results 31 to 40 of about 749,068 (264)
Strengthening a Medium-Carbon Low-Alloy Steel by Nanosized Grains: The Role of Asymmetrical Rolling
Nanomaterials, 2023 A medium-carbon low-alloy steel was prepared via the asymmetric rolling process with different ratios of upper and down roll velocities. Subsequently, the microstructure and mechanical properties were explored by using SEM, EBSD, TEM, tensile tests and ...
Youzhi Li +4 more
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Exploiting the structure via sketched gradient algorithms [PDF]
2017 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2017 Sketched gradient algorithms have been recently introduced for efficiently solving the large-scale constrained Least-squares regressions. In this paper we provide novel convergence analysis for the basic method {\it Gradient Projection Classical Sketch} (GPCS) to reveal the fast linear convergence rate of GPCS towards a vicinity of the solution thanks ...
Tang, Junqi +2 more
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Finite element simulation of thermodynamic properties of NiCoCrAlY/YSZ gradient coating
Journal of Aeronautical Materials, 2023 The two-dimensional finite element microscopic model of NiCoCrAlY/YSZ gradient thermal barrier coating was established by using the representative volume element method to calculate the thermophysical properties of the gradient layer under different ...
WANG Shifeng +6 more
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On gradient structures for Markov chains and the passage to Wasserstein gradient flows
Networks and Heterogeneous Media, 2015 We study the approximation of Wasserstein gradient structures by their finite-dimensional analog. We show that simple finite-volume discretizations of the linear Fokker-Planck equation exhibit the recently established entropic gradient-flow structure for reversible Markov chains.
Disser, Karoline, Liero, Matthias
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Second Gradient Models and Concrete Structures [PDF]
, 2017 Damage induces strain localization in quasi-brittle materials such as concrete. In order to correctly simulate this behaviour, it is necessary to introduce a length scale parameter in the continuum model. The second gradient model, a special case of kinematically enriched continua, uses an internal length parameter by taking into account the second ...
Jouan, G. +3 more
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A Conjugate Gradient Method for Electronic Structure Calculations [PDF]
SIAM Journal on Scientific Computing, 2017 In this paper, we study a conjugate gradient method for electronic structure calculations. We propose a Hessian based step size strategy, which together with three orthogonality approaches yields three algorithms for computing the ground state energy of atomic and molecular systems.
Xiaoying Dai +3 more
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Crystals, 2023 Conventional acoustic systems exhibit a difficulty in sensing weak acoustic fault signals in complex mechanical vibration environments. Therefore, it is necessary to develop an acoustic sensing mode and a corresponding functional device with pressure ...
Xinsa Zhao +3 more
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Concentration effects of BV gradients have gradient structure
, 2021 We prove that the concentration effects arising from weakly-* convergent sequences of gradients of maps of bounded variation have gradient structure. This is in stark contrast with the corresponding oscillation phenomena.
Kristensen, Jan, Raiţă, Bogdan
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Gradients of structure-function tethering across neocortex [PDF]
Proceedings of the National Academy of Sciences, 2019 The white matter architecture of brain networks imparts a distinct signature on neuronal co-activation patterns. Inter-regional projections promote synchrony among distant neuronal populations, giving rise to richly patterned functional networks. A variety of statistical, communication and biophysical models have been proposed to study the relationship
Bertha Vázquez-Rodríguez +9 more
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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