Results 41 to 50 of about 753,829 (150)

Thermodynamic approach to the dewetting instability in ultrathin films

, 2010
The fluid dynamics of the classical dewetting instability in ultrathin films is a non-linear process. However, the physical manifestation of the instability in terms of characteristic length and time scales can be described by a linearized form of the ...
de Gennes P. -G., de Gennes P. -G., H. Krishna, N. Shirato, Nicolas G., R. Kalyanaraman, Trice J.   +6 more
core   +1 more source

A micromorphic approach to stress gradient elasticity theory with an assessment of the boundary conditions and size effects [PDF]

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2018
AbstractBasing on thermodynamics principles, a stress gradient elasticity theory is presented whereby the material is modeled as a centro‐symmetric micromorphic anisotropic material. A principle of minimum complementary energy and a stationarity principle of Hellinger–Reissner type are provided, by which the boundary conditions are uniquely determined ...
openaire   +1 more source

Velocity gradient power functional for Brownian dynamics

, 2017
We present an explicit and simple approximation for the superadiabatic excess (over ideal gas) free power functional, admitting the study of the nonequilibrium dynamics of overdamped Brownian many-body systems.
Heras, Daniel de las, Schmidt, Matthias
core   +1 more source

Facilitation and competition deconstructed: a mechanistic modelling approach to the stress gradient hypothesis applied to drylands

Scientific Reports
AbstractFacilitative interactions among species are key in plant communities. While experimental tests support the Stress Gradient Hypothesis (SGH) as an association between facilitation and stress, whether the shape of net effects along stress gradients can be predicted is controversial, with no available mathematical modelling approaches. We proposed
Diaz-Sierra R., Rietkerk M., Verwijmeren M., Baudena M.   +3 more
openaire   +7 more sources

Nonlinear superhorizon perturbations of non-canonical scalar field

, 2008
We develop a theory of non-linear cosmological perturbations at superhorizon scales for a scalar field with a Lagrangian of the form $P(X,\phi)$, where $X=-\partial^{\mu}\phi\partial_{\mu}\phi$ and $\phi$ is the scalar field.
A. Naruko, D. Langlois, D. Seery, D.H. Lyth, F. Arroja, F. Vernizzi, G.I. Rigopoulos, J.M. Maldacena, K.A. Malik, K.A. Malik, N. Arkani-Hamed, N. Arkani-Hamed, N. Arkani-Hamed, Planck collaboration, R.K. Jain, S. Mukohyama, S. Yokoyama, Shinji Mukohyama, T. Battefeld, T. Kobayashi, WMAP collaboration, WMAP collaboration, WMAP collaboration, X. Chen, Yu-ichi Takamizu   +24 more
core   +1 more source

Fatigue life prediction of notched components: a comparison between the theory of critical distance and the classical stress-gradient approach

Procedia Engineering, 2011
Abstract Fatigue life prediction for machine components is a key factor in the industrial world and several methods can be traced in technical literature to estimate life of notched components. The paper correlates the classical stress-gradient approach, here after called support factor (SF) method, proposed by Siebel, Neuber and Petersen with the ...
SPAGGIARI, Andrea, CASTAGNETTI, Davide, DRAGONI, Eugenio, S. Bulleri   +3 more
openaire   +3 more sources

Models of nonlinear kinematic hardening based on different versions of rate-independent maxwell fluid [PDF]

, 2017
Different models of finite strain plasticity with a nonlinear kinematic hardening are analyzed in a systematic way. All the models are based on a certain formulation of a rate-independent Maxwell fluid, which is used to render the evolution of backstresses.
Shutov, Alexey V.
core  

The Incremental Role of Stress Echocardiography in Valvular Heart Disease: A Narrative Review. [PDF]

Diagnostics (Basel)
Correra A, Mauriello A, Del Giudice C, Fonderico C, Di Peppo M, Russo V, D'Andrea A, Esposito G, Brunetti ND.   +8 more
europepmc   +1 more source

Gradient mechanical environments modulate intra-osteonal fluid flow: a three-dimensional finite element study. [PDF]

Front Bioeng Biotechnol
Weilun Y, Haoyu F, Xu G, Siting H, Xinyao L, Lang X, Xiaoxi L, Xiaohang Y.   +7 more
europepmc   +1 more source

Design and Fabrication of Biomimetic Gradient Bone Tissue Engineering Scaffolds: Evolution from Single-Gradient to Multi-Gradient. [PDF]

Gels
Liu H, Liu J, Sun C, Wang Y, Sun Y, Shi X.   +5 more
europepmc   +1 more source