Results 61 to 70 of about 7,767,476 (330)
Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna
Advanced Functional Materials, EarlyView.We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz +9 more
wiley +1 more source
PRESSURE THEORY OF HELICOPTER ROTOR
Advanced Engineering Research, 2011 A new theory of determining the principal aerodynamic characteristics of the propeller is offered.
Sergey P. Lisin
doaj
Advanced Functional Materials, EarlyView.Terminal domains of recombinant collagen‐like silk regulate hierarchical self‐assembly across molecular and material scales. We show that terminal domains of collagen‐like silk enhance triple‐helix stability and drive liquid–liquid phase separation, enabling reversible formation of fibers and self‐healing films.
Mengjie Shen +5 more
wiley +1 more source
Научный вестник МГТУ ГА, 2017 For single-rotor helicopters there are special flight modes, when tail rotor (TR) is under significant inductive influence of vortical wake of main rotor (MR).
Yu. M. Ignatkin +3 more
doaj
Variable-speed rotor helicopters: Performance comparison between continuously variable and fixed-ratio transmissions [PDF]
, 2016 Variable speed rotor studies represent a promising research field for rotorcraft performance improvement and fuel consumption reduction. The problems related to employing a main rotor variable speed are numerous and require an interdisciplinary approach.
Benini, Ernesto +1 more
core +1 more source
Advanced Functional Materials, EarlyView.A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He +8 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Intranasally administered hUMSC‐derived exosomes modulate the CRYAB–ARRDC3–Drp1 axis, alleviating mitochondrial dysfunction and ferroptosis, enhancing neuronal survival, reducing oxidative stress, and promoting functional recovery in ischemia‐reperfusion injury, offering a promising therapeutic strategy for ischemic stroke.
Rong ji +7 more
wiley +1 more source
Continuous Trailing-Edge Flaps for Primary Flight Control of a Helicopter Main Rotor
Proceedings of the Vertical Flight Society 70th Annual Forum, 2014 The use of continuous trailing-edge flaps (CTEFs) for primary flight control of a helicopter main rotor is studied. A practical, optimized bimorph design with Macro-Fiber Composite actuators is developed for CTEF control, and a coupled structures and ...
Robert P. Thornburgh +4 more
semanticscholar +1 more source
Dynamic Characteristics of Helicopter Bearingless Main Rotor
Journal of the Korean Society for Aeronautical & Space Sciences, 2016 ABSTRACT The characteristics of bearingless main rotor of helicopter are investigated throughnon-rotatingtestsandrotatingtests.Thestiffnessandnaturalfrequenciesofrotorblades,flexbeam,andtorquetubewhicharecorecomponentsofbaearinglessrotoraremeasuredtoobtain inputmaterial propertiesfor rotor analysis.
Chul Yong Yun +2 more
openaire +2 more sources
Advanced Healthcare Materials, EarlyView.Magnetic Ion Channel Activation (MICA) enables remote stimulation of mechanosensitive ion channels using functionalised magnetic nanoparticles, enhancing extracellular vesicle (EV) biogenesis is pre‐osteoblasts. MICA desrived EVs exhibit typical nano‐vesicular characteristics but display superior pro‐osteogeneic activity, promoting mesenchymal stem ...
Afeesh Rajan Unnithan +9 more
wiley +1 more source