Results 201 to 210 of about 3,653 (264)

One Molecular Platform, Three Distinct Narrowband Organoboron TADF Emitters: A Divergent One‐Pot Strategy From Green to Red

Angewandte Chemie, EarlyView.
One platform–three emitters: Divergent one‐pot borylation of a single indolocarbazole platform exploits competing mono‐ and double‐borylation pathways to generate three spectrally distinct organoboron MR‐TADF emitters spanning green to red, enabling color‐tunable narrowband OLEDs with external quantum efficiencies over 30%.
Jun Hyeon Lee, Minlang Yang, Takuma Yasuda   +2 more
wiley   +1 more source

A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder. [PDF]

Sensors (Basel)
Mao Y, Chang H, Wang Y, Yuan D, Lv Y, Song Z.   +5 more
europepmc   +1 more source

Inertia-driven amphibious robot with asymmetric microundulatory fin arrays. [PDF]

Sci Adv
Tang L, Yang Y, Li B, Zhang B, He Q, Ren H, Li Y.   +6 more
europepmc   +1 more source

Experimental and Spectral Analysis of the Wake Velocity Effect in a 3D Falcon Prototype with Oscillating Feathers and Its Application in HAWT with Biomimetic Vortex Generators Using CFD. [PDF]

Biomimetics (Basel)
Parra HG, Guacaneme JA, Gaona EE, Cerón-Muñoz HD.   +3 more
europepmc   +1 more source

Numerical investigation of wake interaction and bio-inspired propulsive performance of tandem flapping foils for soft-robotic underwater locomotion. [PDF]

Sci Rep
Swain PK, Padhi SN, Raj A N, Kalam SA, Choudhury M, Raghuram KS, Rafighi M, Sharma P.   +7 more
europepmc   +1 more source

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Vortex-Induced Vibrations

2016
Starting at a low Reynolds number of about 50, and reaching the highest Reynolds numbers recorded, bluff bodies placed within an external flow form an unstable wake that results in the formation of a regular pattern of vortices, the Karman street. If the structure is flexible or flexibly mounted, these vortices may cause vibrations, leading to stresses
Triantafyllou, Michael S., Bourguet, Rémi, Dahl, Jason, Modarres-Sadeghi, Yahya   +3 more
openaire   +2 more sources

Vortex-induced vibrations of a sphere

Journal of Fluid Mechanics, 2005
There are many studies on the vortex-induced vibrations of a cylindrical body, but almost none concerned with such vibrations for a sphere, despite the fact that tethered bodies are a common configuration. In this paper, we study the dynamics of an elastically mounted or tethered sphere in a steady flow, employing displacement, force and vorticity ...
Govardhan, RN, Williamson, CHK
openaire   +1 more source

Lock-in in vortex-induced vibration

Journal of Fluid Mechanics, 2016
The phenomenon of lock-in in vortex-induced vibration of a circular cylinder is investigated in the laminar flow regime ($20\leqslant Re\leqslant 100$). Direct time integration (DTI) and linear stability analysis (LSA) of the governing equations are carried out via a stabilized finite element method.
null Navrose, Sanjay Mittal
openaire   +2 more sources

Effects of Oblique Inflow in Vortex-Induced Vibrations

Flow, Turbulence and Combustion, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lucor, Didier, Karniadakis, George Em
openaire   +1 more source