Results 111 to 120 of about 173,343,641 (293)
Applied SciencesThe concept of active blade twisting as a method for reducing helicopter noise and vibration during flight is presented. Active twisting is achieved through piezoelectric actuators embedded in the blade skin, which generate dynamic twist when subjected ...
Andrejs Kovalovs
doaj +1 more source
Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies
Advanced Materials, EarlyView.In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim +5 more
wiley +1 more source
Performance prediction of a free stream tidal turbine with composite bend-twist coupled blades
, 2008 Free stream tidal turbines are a source of growing interest in the marine renewable energy field. Some designs use variable pitch blade control devices in order to maximize the efficiency of the turbines; however these are complex to design, construct ...
Nicholls-Lee, R.F. +2 more
core +1 more source
Biohybrid Crawling Robot With Spiral‐Spring Backbone and Inclined Legs for Enhanced Locomotion
Advanced Materials, EarlyView.We present a biohybrid crawling robot integrating a muscle ring with a flexible skeleton combining two complementary structural elements. The spiral‐spring backbone enables large‐amplitude bending without compromising axial stability, while outward‐inclined legs with unequal front–rear lengths effectively convert deformation into directional strides ...
Tomohiro Morita +2 more
wiley +1 more source
Tuning proximity spin-orbit coupling in graphene/NbSe₂ heterostructures via twist angle [PDF]
We investigate the effect of the twist angle on the proximity spin-orbit coupling (SOC) in graphene/NbSe2 heterostructures from first principles. The low-energy Dirac bands of several different commensurate twisted supercells are fitted to a model ...
Naimer, Thomas +2 more
core +1 more source
Existence of a twist angle intrinsic to the reference orbit in circular accelerators
Physical Review Special Topics. Accelerators and Beams, 2000 In a circular accelerator, a horizontal-vertical coupling can occur as a purely geometrical effect, in the absence of any coupling device (skew-quadrupole magnets, etc.).
Stefania Petracca, Kohji Hirata
doaj +1 more source
Seamless Mechanical Programming Through Hybrid Epoxy–Acrylate Printing for Soft–Rigid Robots
Advanced Materials, EarlyView.Hybrid epoxy‐acrylate printing enables seamless fabrication of soft–rigid robotic systems with covalently integrated interfaces and functionally graded mechanics. Grayscale exposure expands the accessible material space, enabling spatially programmed actuation through patterned stiffness while revealing the mechanics and durability of continuously ...
David C. Bershadsky +3 more
wiley +1 more source
Elastic-plastic behaviour of AISiC metal matrix composite rod under combined tension and torsion loading [PDF]
, 2003 Most machine components and structural members are subjected to complex loading conditions during service. Typical complex loading conditions can be observed in the case of a bolt When a bolt is tightened to bring machine components together, stresses ...
Raghupathy, Padmanabhan
core +2 more sources
Twist-Induced Beam Steering and Blazing Effects in Photonic Crystal Devices
Light: Science & ApplicationsTwisted bilayer photonic crystals introduce a twist between two stacked photonic crystal slabs, enabling strong modulation of their electromagnetic properties.
Nicolas Roy +4 more
doaj +1 more source
Nonplanar Bouligand Architectures for Enhanced Mechanical Performance in Cementitious Composites
Advanced Materials, EarlyView.Inspired by the impact region of the Mantis shrimp dactyl club, nonplanar additive manufacturing translates sinusoidal Bouligand architectures into cementitious composites. Printing‐induced anisotropy and architected interfaces promote distributed damage and arrest crack propagation, enhancing strength and energy absorption.
Yu Wang +7 more
wiley +1 more source