Results 51 to 60 of about 11,968 (257)

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Rotor-System Log-Decrement Identification Using Short-Time Fourier-Transform Filter

open access: yesInternational Journal of Rotating Machinery, 2015
With the increase of the centrifugal compressor capability, such as large scale LNG and CO2 reinjection, the stability margin evaluation is crucial to assure the compressor work in the designed operating conditions in field.
Qihang Li   +3 more
doaj   +1 more source

New method for predicting full-scale power performance of pumpjet propulsion system based on statistical learning

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesAiming at the replacement of propellers behind surface ships with pumpjet propulsion systems, this paper introduces a novel method for predicting full-scale power performance based on statistical learning.
Qiongfang YANG   +5 more
doaj   +1 more source

Geometric Visualization of Self-Propulsion in a Complex Medium

open access: yesPhysical Review Letters, 2013
4 pages, 5 figures, published in Physical Review Letters ...
Hatton, Ross L.   +3 more
openaire   +4 more sources

Cooperative self-propulsion of active and passive rotors [PDF]

open access: yesSoft Matter, 2012
Using minimal models for low Reynolds number passive and active rotors in a fluid, we characterize the hydrodynamic interactions among rotors and the resulting dynamics of a pair of interacting rotors. This allows us to treat in a common framework passive or externally driven rotors, such as magnetic colloids driven by a rotating magnetic field, and ...
Fily, Yaouen   +2 more
openaire   +2 more sources

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Janus particle microshuttle: 1D directional self-propulsion modulated by AC electrical field

open access: yesAIP Advances, 2014
A catalytic Janus particle is capable of gaining energy from the surrounding fuel solution to drive itself to move continuously, which has an important impact in different fields, especially the field of micro-systems.
Jiliang Chen   +3 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

open access: yesAdvanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari   +4 more
wiley   +1 more source

Anti-Newtonian dynamics and self-induced Bloch oscillations of correlated particles

open access: yesNew Journal of Physics, 2014
We predict that two correlated particles hopping on a one-dimensional Hubbard lattice can show transient self-acceleration and self-induced Bloch oscillations as a result of anti-Newtonian dynamics.
Stefano Longhi
doaj   +1 more source

Medical Swimming Cellbots

open access: yesAdvanced NanoBiomed Research, 2022
To address the issue that synthetic swimming nanorobots are susceptible to immune clearance and fouling in vivo, swimming hybrid cell‐based robots (cellbots) composed of living cells have been developed.
Hongyue Zhang, Zesheng Li, Qiang He
doaj   +1 more source

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