Results 71 to 80 of about 34,335 (263)

Research on Laser Automatic Phase−Locking Technology for Atomic Interferometric Gravity Gradient Measurement

open access: yesPhotonics
Atomic interferometric gravity gradient measurement enables atomic interference by manipulating atoms with lasers of specific frequencies. Thus, the frequency and phase−locking performance of the laser system exerts a significant impact on key ...
Jipeng Wang, Bangcheng Han, Jinhai Bai
doaj   +1 more source

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen   +7 more
wiley   +1 more source

Conformational Switching of Proteins on Material Surfaces Enabled by Peptide‐Oriented Adsorption

open access: yesAdvanced Functional Materials, EarlyView.
Responsive biointerfaces could be achieved using conformationally responsive proteins; however, their interconversion can be lost upon surface adsorption. Herein, we demonstrate that the incorporation a Au binding peptide into calmodulin allows for binding control on Au wherein the protein retains conformational switching. This capability was confirmed
Sakthirupini Ramamurthy   +7 more
wiley   +1 more source

Chaos Suppression and Phase Locking in an $ \hbox{Nd:YVO}_{4}$ Laser by Reshaping Pump Modulation With Dual Waveforms

open access: yesIEEE Photonics Journal, 2013
This paper demonstrated the suppression of chaos in an Nd:YVO4 laser by reshaping the pump modulation with dual waveforms. When the first sinusoidal modulation induced chaos, the second modulated signal reshaped the modulated profile to suppress the ...
Ken-Chia Chang, Ming-Dar Wei
doaj   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

open access: yesAdvanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy   +5 more
wiley   +1 more source

Replica symmetry breaking in the aperiodic pulsating regime of a passive mode-locked ultrafast fiber laser

open access: yesCommunications Physics
While replica symmetry breaking (RSB) was originally formulated in spin-glass theory, its photonic counterpart has been realized in the last decade.
Yishan Chen   +7 more
doaj   +1 more source

Harmonic suppression for pulsed load based on improved software phase locked loop method

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives]Pulsed load will inject a large number of harmonics into the ship power system. In order to perform harmonic compensation,the phase locking function of the active filter needs to be completed under severe conditions of mains voltage ...
Wu Jun, Gu Xuan, Pang Yu, Zhao fanqi
doaj   +1 more source

3D Hydrodynamic Flow Lithography

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Continuous‐ and stop‐flow lithography are widely used to fabricate multi‐dimensional microstructures whose cross‐sectional morphology is dictated by the flow profile of multiple co‐flowing streams. Here, we introduce three‐dimensional hydrodynamic flow lithography (3D HFL), a platform for programmable generation of multi‐layered flow profiles ...
Yiying Zou   +5 more
wiley   +1 more source

Saccades during visual exploration align hippocampal 3-8 Hz rhythms in human and non-human primates

open access: yesFrontiers in Systems Neuroscience, 2013
Visual exploration in primates depends on saccadic eye movements that cause alternations of neural suppression and enhancement. This modulation extends beyond retinotopic areas, and is thought to facilitate perception; yet saccades may also influence ...
Kari L Hoffman   +10 more
doaj   +1 more source

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

open access: yesAdvanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati   +16 more
wiley   +1 more source

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