Results 81 to 90 of about 423,404 (290)

Periodical structure of vortices in a semiconductor single wafer spin cleaner

open access: yesNihon Kikai Gakkai ronbunshu, 2015
We experimentally and numerically investigated large-scale structures formed by vortices in a single wafer spin cleaner. The Q-criterion identified the vortices developed in the cleaner as the flow regions with positive second invariant of the velocity ...
Toshinori KOUCHI   +5 more
doaj   +1 more source

Counter-Rotation in Disk Galaxies

open access: yes, 2014
Counter-rotating galaxies host two components rotating in opposite directions with respect to each other. The kinematic and morphological properties of lenticulars and spirals hosting counter-rotating components are reviewed. Statistics of the counter-rotating galaxies and analysis of their stellar populations provide constraints on the formation ...
openaire   +3 more sources

From Fiber Bundles to Architected Membranes: Triply Periodic Minimal Surface Architectures for Biohybrid Artificial Lungs

open access: yesAdvanced Materials, EarlyView.
Additively manufactured triply periodic minimal surface (TPMS) membranes offer an architecture‐driven alternative to hollow fiber bundles in artificial lungs. Multiphysics simulations and endothelialized prototypes show that the 3D‐printable membrane architecture improves gas exchange, blood flow distribution, and hemocompatibility, enabling ...
Michael Pflaum   +14 more
wiley   +1 more source

Vibration of imperfect rotating disk

open access: yesApplied and Computational Mechanics, 2011
This study is concerned with the theoretical and numerical calculations of the flexural vibrations of a bladed disk. The main focus of this study is to elaborate the basic background for diagnostic and identification methods for ascertaining the main ...
Půst L., Pešek L.
doaj  

Normal impingement of hybrid nanofluid over heated rotating disk: Calculations of wall stresses and pressure distribution

open access: yesCase Studies in Thermal Engineering
Numerous practical applications involve rotational flows over rotating disks, such as turbine disks, substrate disks in chemical mixing processes, and rotating disk electrodes.
Awais Ahmed   +5 more
doaj   +1 more source

Ferrofluid flow due to a rotating disk in the presence of a non-uniform magnetic field [PDF]

open access: yes, 2016
The flow of a ferrofluid due to a rotating disk in the presence of a non-uniform magnetic field in the axial direction is studied through mathematical modeling of the problem.
A. Bhandari   +3 more
core   +1 more source

Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells

open access: yesAdvanced Materials, EarlyView.
Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park   +14 more
wiley   +1 more source

Thin accretion disk around rotating hairy black hole: radiative property and optical appearance

open access: yesEuropean Physical Journal C: Particles and Fields
The gravitational decoupling method systematically generates hairy modifications to the solutions in general relativity due to new gravitational sources.
Zhen Li, Xiao-Kan Guo
doaj   +1 more source

Eigenfrequency sensitivity analysis of flexible rotors [PDF]

open access: yesApplied and Computational Mechanics, 2007
This paper deals with sensitivity analysis of eigenfrequencies from the viewpoint of design parameters. The sensitivity analysis is applied to a rotor which consists of a shaft and a disk. The design parameters of sensitivity analysis are the disk radius
Šašek J.
doaj  

Spatial Control of Light‐Responsive Proteins and Optogenetics Within Hydrogels via Volumetric Bioprinting

open access: yesAdvanced Materials, EarlyView.
Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi   +14 more
wiley   +1 more source

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