Results 121 to 130 of about 4,166,217 (327)

Simulation of Wear in Involute Micro Gear

open access: yesJixie chuandong, 2016
In order to further study the microscopic wear mechanisms of micro gear,by using the classical Archard wear equation,combining with JKR(Johnson K L,Kendall K,Roberts A D) theory and GW(Greenwood and Williamson) rough surface model,a simulation model of ...
Shi Wankai   +3 more
doaj  

Fermionic Casimir effect for parallel plates in the presence of compact dimensions with applications to nanotubes

open access: yes, 2009
We evaluate the Casimir energy and force for a massive fermionic field in the geometry of two parallel plates on background of Minkowski spacetime with an arbitrary number of toroidally compactified spatial dimensions.
A. A. Saharian   +14 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

Correlative force and tip-enhanced Raman microscopy

open access: yesAPL Photonics, 2019
Tip-enhanced Raman scattering (TERS) microscopy attracts increasing attention for visualization and characterization of strain distribution on crystalline samples at a nanoscale due to nano-sized fields localized at a metal tip. However, as the metal tip
Kohta Saitoh   +2 more
doaj   +1 more source

Tunable Casimir repulsion with three dimensional topological insulators

open access: yes, 2011
In this Letter, we show that switching between repulsive and attractive Casimir forces by means of external tunable parameters could be realized with two topological insulator plates.
Adolfo G. Grushin   +2 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

Dark Energy and Dark Matter from Emergent Gravity Picture

open access: yesEPJ Web of Conferences, 2018
We suggest that dark energy and dark matter may be a cosmic uroboros of quantum gravity due to the coherent vacuum structure of spacetime. We apply the emergent gravity to a large N matrix model by considering the vacuum in the noncommutative (NC ...
Seok Yang Hyun
doaj   +1 more source

Effective forces between colloids at interfaces induced by capillary wave-like fluctuations

open access: yes, 2006
We calculate the effective force mediated by thermally excited capillary waves between spherical or disklike colloids trapped at a fluid interface. This Casimir type interaction is shown to depend sensitively on the boundary conditions imposed at the ...
H Lehle   +5 more
core   +1 more source

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