Results 41 to 50 of about 6,238 (217)

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Electrically driven heartbeat effect of gallium-based liquid metal on a ratchet

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
The realization of the liquid metal heartbeat effect shows better controllability under non-periodic stimuli than spontaneous oscillation or periodic stimuli.
Shutong Wang   +6 more
doaj   +1 more source

Ratchet Effect and the Transporting Islands in the Chaotic Sea [PDF]

open access: yesPhysical Review Letters, 2007
We study directed transport in a classical deterministic dissipative system. We consider the generic case of mixed phase space and show that large ratchet currents can be generated thanks to the presence, in the Hamiltonian limit, of transporting stability islands embedded in the chaotic sea.
Wang, L.   +3 more
openaire   +6 more sources

Chemically Fueled Systems Chemistry Across Length Scales

open access: yesAdvanced Functional Materials, EarlyView.
Chemically fueled reaction cycles regulate processes through single and multiple catalytic sites on the molecular and assembly scale. This gives rise to unique kinetically controlled properties/functions like spatio‐temporal catalysis, oscillations, optical properties, and perform work.
Brigitte A. K. Kriebisch, Job Boekhoven
wiley   +1 more source

Analysis on Crack Mechanism of Passivation Layer in Power Packaging

open access: yes机车电传动, 2021
Passivation crack on the surface of power chip seriously affects the reliability of power devices. In this paper, the mechanism of passivation layer failure was explored by temperature cycling test on D-PAK module.
Zhiwen CHEN   +4 more
doaj  

Scalable Electronic Ratchet with Over 10% Rectification Efficiency

open access: yesAdvanced Science, 2020
Electronic ratchets use a periodic potential with broken inversion symmetry to rectify undirected (electromagnetic, EM) forces and can in principle be a complement to conventional diode‐based designs.
Olof Andersson   +3 more
doaj   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

open access: yesAdvanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao   +3 more
wiley   +1 more source

RNA Polymerase and Transcription Mechanisms: The Forefront of Physicochemical Studies of Chemical Reactions

open access: yesBiomolecules, 2020
The study of transcription and its regulation is an interdisciplinary field that is closely connected with genetics, structural biology, and reaction theory.
Nobuo Shimamoto, Masahiko Imashimizu
doaj   +1 more source

Evolution of Physical Intelligence Across Scales

open access: yesAdvanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu   +7 more
wiley   +1 more source

Ratchet Effect for Cold Atoms in an Optical Lattice [PDF]

open access: yesPhysical Review Letters, 2005
4 pages, 3 ...
Lundh, Emil, Wallin, Mats
openaire   +3 more sources

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