Results 91 to 100 of about 1,190,033 (239)

STRAINS SUPERPOSITION PRINCIPLE WHEN CONSTRUCTION ELEMENTS HAVE STRUCTURAL DAMAGES

Structural 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  

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

Advanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang, Christopher Wöpke, Toni Seiler, Jared Faisst, Mathias List, Meike Kuhn, Bekcy Joseph, Alexander Ehm, Dietrich R. T. Zahn, Yana Vaynzof, Eva M. Herzig, Roderick C. I. Mackenzie, Uli Würfel, Maria Saladina, Carsten Deibel   +14 more
wiley   +1 more source

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

Studia 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

Monolithic 3D‐Integrated All‐Solid Ion‐Gated Carbon Nanotube Transistors With Tunable Ionic Conductance for Multi‐Timescale Reservoir Computing

Advanced Materials, EarlyView.
A dual‐timescale reservoir based on monolithically 3D (M3D)‐integrated CNT solid ion‐gated transistors is demonstrated. Tunable ionic dynamics and pulse‐engineered operation enable linear and symmetric synaptic updates. The M3D‐integrated array achieves robust temporal encoding and accurate classification of moving MNIST sequences, highlighting its ...
Haksoon Jung, Hanbin Cho, Yongwoo Lee, Seunghun Baek, Hyeongjun Kim, Yun Goo Ro, Hyunhyub Ko, Joonki Suh, Yong‐Young Noh, Jimin Kwon   +9 more
wiley   +1 more source

Nonequilibrium Entropy in a Shock

Entropy, 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

Emergent Spin Supersolids in Frustrated Quantum Materials

Advanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang, Seiji Yunoki, Sadamichi Maekawa   +2 more
wiley   +1 more source

Origin of Dark Current Robustness in Photomultiplication Organic Photodetectors Enabled by Ionic Conjugated Electron‐Blocking Layers

Advanced Materials, EarlyView.
Ionic conjugated polyelectrolyte electron‐blocking layers enable photomultiplication organic photodetectors with dark current robustness up to −10 V and external quantum efficiencies exceeding 3000%. Fowler–Nordheim tunneling, interfacial dipole, trap density of states, and noise analyses reveal how ionic conjugated polyelectrolytes suppress electron ...
Yelim Kang, Min Hun Jee, Shuai Zhang, Sang Heon Lee, Jung Min Ha, Xingchao Zhao, Xiaoling Ma, Huiseong Shin, Changhwan Shin, Soonyong Lee, Fujun Zhang, Jae Won Shim, Han Young Woo   +12 more
wiley   +1 more source

Boltzmann–Loschmidt Dispute Reloaded: Quantum 150 Years Later

Entropy
The Boltzmann–Loschmidt dispute of 1876 questioned the possibility of a statistical irreversible description by time-reversible classical equations of motion of atoms.
Leonardo Ermann, Alexei D. Chepelianskii, Dima L. Shepelyansky   +2 more
doaj   +1 more source

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

Applied 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

Electrocatalyst/Semiconductor Interfaces in Photoelectrocatalysts: Mechanistic Analysis of the Impact of Nanoparticle Electrocatalyst Coverage on Performance

Advanced Materials, EarlyView.
Reducing Ni nanoparticle coverage on n‐Si photoanodes enhances photovoltage by promoting thicker interfacial SiOx formation during photoelectrochemical oxygen evolution reaction (OER). Experiments, analytical modeling, and finite‐element simulations reveal that coverage‐dependent chemical interface evolution, rather than geometric effects alone ...
Aarti Mathur, Ahmet Sert, Suljo Linic
wiley   +1 more source