Results 41 to 50 of about 21,143 (274)

Research on the Volumetric Efficiency of 2D Piston Pumps with a Balanced Force

open access: yesEnergies, 2020
Axial piston pumps with high rotational speeds are required in many fields to increase the power-to-weight ratio. However, three main sliding friction pairs in the pump restrict the increase in rotational speed.
Yu Huang   +4 more
doaj   +1 more source

Inhomogeneous backflow transformations in quantum Monte Carlo calculations [PDF]

open access: yes, 2006
An inhomogeneous backflow transformation for many-particle wave functions is presented and applied to electrons in atoms, molecules, and solids. We report variational and diffusion quantum Monte Carlo (VMC and DMC) energies for various systems and study ...
Lopez Rios, P.   +4 more
core   +4 more sources

Model‐Guided Design of Paper Membrane Architectures for Controlled Flow and Enhanced Diagnostic Sensitivity

open access: yesAdvanced Engineering Materials, EarlyView.
Geometrical modifications on nitrocellulose membranes can result in observable differences in signal intensity relative to a reference membrane (top and bottom left). Using two reference experiments, we have developed a theoretical model that can reproduce the experimentally observed flow changes and provide information on membrane parameters, e.g ...
Maria Dimaki   +2 more
wiley   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

Energy backflow in unidirectional spatiotemporally localized wavepackets

open access: yes, 2022
Backflow, or retro-propagation, is a counterintuitive phenomenon where for a forward-propagating wave the energy or probability density locally propagates backward.
Ioannis Besieris (5927558)   +1 more
core   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

Research on the Matching Relationship between Backflow Device and Special Rail of Urban Rail Transit Vehicles

open access: yesChengshi guidao jiaotong yanjiu
Objective The stray current generated during the operation of urban rail transit vehicles with rail backflow method will cause electrical corrosion to nearby metal objects, while the special rail return mode can solve such problems.
HUANG Yuanqing   +3 more
doaj   +1 more source

Comment on ‘Backflow in relativistic wave equations’

open access: yesJournal of Physics A: Mathematical and Theoretical, 2023
2 pages, no ...
Maximilien Barbier   +4 more
openaire   +2 more sources

Thermoresponsive Liquid Crystalline Polymer Coatings Programmed by Field‐Induced Topological Defects for Tunable Optical and Topographical Responses

open access: yesAdvanced Functional Materials, EarlyView.
Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto   +6 more
wiley   +1 more source

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