Results 121 to 130 of about 411,329 (300)

Design and numerical analysis of a gap-compensated low loss hollow-core antiresonant fiber with nested elliptical tubes

open access: yesScientific Reports
In this research, we propose a novel hollow-core anti-resonant fiber structure designed to enhance light confinement and reduce losses. Our simulation results indicate that the LP01 mode loss is reduced to 1.807 × 10⁻⁶ dB/km at a wavelength of 1.52 μm ...
Yuemei Li   +4 more
doaj   +1 more source

Phonon Mechanism of the Ferromagnetic Transition in La1-xSrxMnO3

open access: yes, 2003
Temperature dependence of longitudinal optical phonons with oxygen character was measured in La1-xSrxMnO3 (x=0.2, 0.3) by inelastic neutron scattering in the (1 0 0) cubic direction.
Reichardt, W., Reznik, D.
core   +1 more source

Investigation of mechanical losses of thin silicon flexures at low temperatures

open access: yes, 2010
The investigation of the mechanical loss of different silicon flexures in a temperature region from 5 to 300 K is presented. The flexures have been prepared by different fabrication techniques.
A Tünnermann   +38 more
core   +1 more source

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan   +8 more
wiley   +1 more source

Design and Study of Low Loss, High Birefringence Quasi-Symmetric Hollow-Core Anti-Resonant Fiber

open access: yesPhotonics
Low-loss, high-birefringence, bend-resistant hollow-core anti-resonant fibers for infrared wavelengths have important applications in the fields of precision interferometric sensing, laser systems, and optical communications. In this paper, an eight-tube
Binhao Gao   +8 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Stiffness Loss of Curvic Coupling Under Bending Vibration and Its Effect on Dynamic Characteristics of Rotor Systems

open access: yesIEEE Access
Aiming at the complex mechanical characteristics of the curvic coupling in the aero-engine rotor under operation condition, the contact stiffness model of the curvic coupling under the bending vibration is proposed to study the law of stiffness loss of ...
Xing Heng, Ailun Wang
doaj   +1 more source

BENDING LOSS REGULARIZED NETWORK FOR NUCLEI SEGMENTATION IN HISTOPATHOLOGY IMAGES. [PDF]

open access: yesProc IEEE Int Symp Biomed Imaging, 2020
Wang H, Xian M, Vakanski A.
europepmc   +1 more source

Optical properties of a low-loss polarization maintaining microfiber

open access: yes, 2010
A polarization preserving single-mode microfiber was successfully fabricated by a flame brushing method. A polarization extinction ratio of 16dB is typically maintained through the device with excess loss of 0 ...
Brambilla, Gilberto   +2 more
core  

Facet‐Engineered S‐Scheme Heterostructure With Enhanced Active Sites for Efficient Photocatalytic Degradation of Organic Contaminants

open access: yesAdvanced Functional Materials, EarlyView.
The facet‐engineered ZnO/Zn3In2S6 heterostructure, dominated by {001} plane coupling, exposes abundant unsaturated Zn sites with elongated Zn─O bonds, directing photoexcited charge carriers along an S‐scheme pathway and suppressing recombination. Enhanced interfacial Zn adsorption toward bisphenol A and methylene blue further synergistically promotes ...
Yang Yang   +6 more
wiley   +1 more source

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