Results 41 to 50 of about 32,603 (223)

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Necessary and Sufficient Condition for Stability of Generalized Expectation Value

Journal of Applied Mathematics, 2011
A class of generalized definitions of expectation value is often employed in nonequilibrium statistical mechanics for complex systems. Here, the necessary and sufficient condition is presented for such a class to be stable under small deformations of a ...
Aziz El Kaabouchi, Sumiyoshi Abe
doaj   +1 more source

Incomplete equilibrium in long-range interacting systems

, 2006
We use a Hamiltonian dynamics to discuss the statistical mechanics of long-lasting quasi-stationary states particularly relevant for long-range interacting systems.
A. Pluchino, A. I. Kinchin, C. Maes, Enzo Orlandini, F. Ritort, Fulvio Baldovin, L. D. Landau, R. Balescu, R. S. Ellis, T. Dauxois   +9 more
core   +1 more source

Fluctuations in Nonequilibrium Statistical Mechanics: Models, Mathematical Theory, Physical Mechanisms [PDF]

, 2007
The fluctuations in nonequilibrium systems are under intense theoretical and experimental investigation. Topical ``fluctuation relations'' describe symmetries of the statistical properties of certain observables, in a variety of models and phenomena ...
Allen M P, Altmann E G, Bellisard J, Benettin G, Carlos Mejía-Monasterio, Cohen E G D, De Groot S R, De Roeck A Maes C, Douarche F, Einstein A, Einstein A, Esposito M Harbola U Mukamel S, Evans D J, Evans D J, Evans D J Searles D J, Evans D J Searles D J Morriss G P, Friedlin M I, Gallavotti G, Gallavotti G, Gallavotti G, Gallavotti G, Gallavotti G, Gallavotti G, Gauss K F, Gentile G, Harris R J, Hoover W G, Hänggi P, Jepps O G, Khinchin A I, Kurchan J, Kurchan J, Kurchan J, Lamberto Rondoni, Lanczos C, Maes C, Mazonka O Jarzynski C, Mejía-Monasterio C Rondoni L, Narayan O, Ornstein L S, Puglisi A, Ritort F, Rondoni L, Rondoni L, Rondoni L, Sinai Ya G, Spohn H, Tel T, Visco P, Wang G M   +49 more
core   +3 more sources

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Possible nonequilibrium imprint in the cosmic background at low frequencies

Physical Review Research, 2020
Cosmic background radiation has been observed to deviate from the Planck law expected from a blackbody at ∼2.7 K at frequencies below ∼3 GHz. We discuss the abundance of the low-energy photons from the perspective of nonequilibrium statistical mechanics.
Marco Baiesi, Carlo Burigana, Livia Conti, Gianmaria Falasco, Christian Maes, Lamberto Rondoni, Tiziana Trombetti   +6 more
doaj   +1 more source

Fluctuations relations for semiclassical single-mode laser

, 2008
Over last decades, the study of laser fluctuations has shown that laser theory may be regarded as a prototypical example of a nonlinear nonequilibrium problem.
Chernyak V, Chetrite R, Chetrite R, Eyink G L, Haken H, Kurchan J, Raphaël Chetrite, Risken H, Sargent M, Speck T, Zwanzig R   +10 more
core   +1 more source

A Scalable Perovskite Platform With Multi‐State Photoresponsivity for In‐Sensor Saliency Detection

Advanced Materials, EarlyView.
A scalable in‐sensor computing platform (32 × 32 array) with ultra‐low variability is developed by incorporating ferroelectric copolymers into halide perovskite thin films. These devices achieve 1000 programmable photoresponsivity states and high thermal reliability.
Xuechao Xing, Anubhab Tripathi, Si En Ng, Natalia Yantara, Yue Gong, Qinjie Wu, Yeow Boon Tay, Wen Siang Lew, Yang Chai, Arindam Basu, Nripan Mathews   +10 more
wiley   +1 more source

Unifying thermodynamic uncertainty relations

New Journal of Physics, 2020
We introduce a new technique to bound the fluctuations exhibited by a physical system, based on the Euclidean geometry of the space of observables.
Gianmaria Falasco, Massimiliano Esposito, Jean-Charles Delvenne   +2 more
doaj   +1 more source

Note on Two Theorems in Nonequilibrium Statistical Mechanics

, 1999
An attempt is made to clarify the difference between a theorem derived by Evans and Searles in 1994 on the statistics of trajectories in phase space and a theorem proved by the authors in 1995 on the statistics of fluctuations on phase space trajectory ...
Cohen, E. G. D., Gallavotti, G.
core   +1 more source