Results 111 to 120 of about 3,788,726 (334)

STRAINS SUPERPOSITION PRINCIPLE WHEN CONSTRUCTION ELEMENTS HAVE STRUCTURAL DAMAGES

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2011
Rheological state equations of materials are obtained on the base of the principle of the superposition of fraction creep strains. Boltzmann the first applied this principle when the fraction strains were independent of the value and duration of the rest
E A Larionov, V M Bondarenko
doaj  

Nonequilibrium Entropy in a Shock

open access: yesEntropy, 2017
In a classic paper, Morduchow and Libby use an analytic solution for the profile of a Navier–Stokes shock to show that the equilibrium thermodynamic entropy has a maximum inside the shock.
L.G. Margolin
doaj   +1 more source

Transport equations for gases and plasmas obtained by the 13-moment method - A summary [PDF]

open access: yes
Momentum transfer solutions to Boltzmann transport equations for gas mixture and ...
Harstad, K. G.
core   +1 more source

Integrated Field‐Free SOT Domain‐Wall Synapses and MTJ Stochastic Neurons for Hardware Boltzmann Machines

open access: yesAdvanced Functional Materials, EarlyView.
Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone   +8 more
wiley   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar   +6 more
wiley   +1 more source

Insights Into Estimation of Sand Permeability: From Empirical Relations to Microstructure-based Methods

open access: yesStudia Geotechnica et Mechanica
This study evaluates various methods for estimating soil permeability using microtomography-derived data and compares them to the conventional laboratory approaches.
Bodak Bartłomiej, Sobótka Maciej
doaj   +1 more source

A Truly Second-Order and Unconditionally Stable Thermal Lattice Boltzmann Method

open access: yesApplied Sciences, 2017
An unconditionally stable thermal lattice Boltzmann method (USTLBM) is proposed in this paper for simulating incompressible thermal flows. In USTLBM, solutions to the macroscopic governing equations that are recovered from lattice Boltzmann equation (LBE)
Zhen Chen, Chang Shu, Danielle S. Tan
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

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