Results 101 to 110 of about 1,119,730 (249)

Many-body effects in twisted bilayer graphene at low twist angles

open access: yesPhysical Review B, 2019
10 pages, 3 figures.
Sboychakov, A. O.   +3 more
openaire   +3 more sources

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

open access: yesAdvanced 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

Kekulé superconductivity in twisted magic angle bilayer graphene

open access: yesNature Communications
While it has been one of the most important new physics discoveries in the last decade, the nature of superconductivity in the twisted graphene family remains an unsolved problem. Motivated by recent scanning tunneling experiments that report Kekulé ordering in moiré graphene superconductors, we develop a microscopic theory of this superconductivity ...
Ke Wang, K. Levin
openaire   +3 more sources

Biohybrid Crawling Robot With Spiral‐Spring Backbone and Inclined Legs for Enhanced Locomotion

open access: yesAdvanced 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

Geoff Twist

open access: yes, 2007
"Able Seaman Geoff Twist 'Ollie' HMAS. Vendetta 1942"Able Seaman, Geoff "Ollie" Twist.
Twist, Geoff
core  

Seamless Mechanical Programming Through Hybrid Epoxy–Acrylate Printing for Soft–Rigid Robots

open access: yesAdvanced 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

Performance prediction of a free stream tidal turbine with composite bend-twist coupled blades

open access: yes, 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

Twist-Induced Beam Steering and Blazing Effects in Photonic Crystal Devices

open access: yesLight: Science & Applications
Twisted 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

Existence of a twist angle intrinsic to the reference orbit in circular accelerators

open access: yesPhysical 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

Nonplanar Bouligand Architectures for Enhanced Mechanical Performance in Cementitious Composites

open access: yesAdvanced 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

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