Results 41 to 50 of about 12,469 (261)

Polarization Characteristics of an Alkaline Water Electrolyzer Under Marine Sloshing Conditions

open access: yesJournal of Marine Science and Engineering
Marine hydrogen production systems deployed on ships and floating platforms are inevitably subjected to complex multi-degree-of-freedom motions induced by waves and wind, which may influence electrolyzer performance.
Zhenyu Zhao   +3 more
doaj   +1 more source

Weak field limit and gravitational waves in f(T, B) teleparallel gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We derive the gravitational waves for $$f\left( T, B\right) $$ fT,B gravity which is an extension of teleparallel gravity and demonstrate that it is equivalent to f(R) gravity by linearized the field equations in the weak field limit approximation.
Salvatore Capozziello   +2 more
doaj   +1 more source

All-Optical Polarization Manipulation Through Orbital Polarization Holography

open access: yesFrontiers in Physics, 2022
Spin-orbital optical phenomena are closely related with light-matter interactions and have been of great interest in the last few years. Here, the effect of optical orbital angular momentum (OAM) on polarized waves carrying spin angular momentum (SAM ...
Ziyao Lyu, Changshun Wang
doaj   +1 more source

Grayscale Photomasks Enable Noncontact Optical Patterning of Hydroxypropyl Cellulose Gels for Dynamic Art

open access: yesAdvanced Functional Materials, EarlyView.
Mask‐encoded UV exposure translates digital color information into pixel‐resolved structural‐color patterns in hydroxypropyl cellulose gels. Gaussian‐process‐guided calibration links UV processing conditions, wavelength, and mask opacity, enabling parallel fabrication of multicolor images in a single 10 s exposure.
Mengting Ye   +8 more
wiley   +1 more source

Influence of resonant plasmonic nanoparticles on optically accessing the valley degree of freedom in 2D semiconductors

open access: yesNature Communications
The valley degree of freedom in atomically thin transition metal dichalcogenides, coupled with valley-contrasting optical selection rules, holds great potential for future electronic and optoelectronic devices.
Tobias Bucher   +12 more
doaj   +1 more source

Sliding Ferroelectricity Driven Spin-Layertronics in Altermagnetic Multilayers. [PDF]

open access: yesAdv Sci (Weinh)
Integrating sliding ferroelectricity with altermagnetism enables nonvolatile electrical control of spin and layer degrees of freedom. In bilayer CuF2, interlayer translation reverses layer‐locked spin‐split bands, establishing a multifunctional “spin‐layertronic” platform.
Peng R   +5 more
europepmc   +2 more sources

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

open access: yesAdvanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar   +9 more
wiley   +1 more source

Function-Versatile Thermo-Optic Switch Using Silicon Nitride Waveguide in Polymer

open access: yesPhotonics, 2023
A function-versatile thermo-optic switch is proposed and experimentally demonstrated using silicon nitride waveguides embedded in polymer cladding.
Tao Chen   +4 more
doaj   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

Generation of polarization-tunable hybrid cylindrical vector $\gamma$ rays from rotating electron beams

open access: yesHigh Power Laser Science and Engineering
Cylindrical vector (CV) $\gamma$ rays can introduce spatially structured polarization as a new degree of freedom for fundamental research and practical applications. However, their generation and control remain largely unexplored.
Si-Man Liu   +13 more
doaj   +1 more source

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