Results 121 to 130 of about 9,047,501 (218)

Evaluation of a novel fetal echocardiography training programme in two tertiary care obstetric Centres

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objectives Improving and maintaining high detection rates for major congenital heart disease (CHD) is a priority for successful prenatal anatomy screening programmes. The primary objective of this study was to evaluate the utility of on‐site multidimensional targeted training in fetal cardiac screening. Methods A prospective study evaluating a
Fiona Cody   +6 more
wiley   +1 more source

Mode hopping via nonlinear magnon-magnon coupling in a synthetic antiferromagnet. [PDF]

open access: yesNat Commun
You M   +11 more
europepmc   +1 more source

Tunable, High Pulse Energy and Narrow Linewidth Gas‐Filled Fiber Laser Across Near‐ and Mid‐Infrared

open access: yesLaser &Photonics Reviews, EarlyView.
A cascaded gas‐filled anti‐resonant hollow‐core fiber architecture enables broadly tunable infrared Raman lasers spanning ∼1.4–4.6 µm while maintaining microjoule‐level pulse energies and gigahertz‐level linewidths. The approach combines a wavelength‐tunable pump laser with optimized Raman frequency conversion, providing a compact route to high ...
Yazhou Wang   +11 more
wiley   +1 more source

Drive‐Efficient GHz‐Rate Binary‐State Updates Enabled by VCSEL Polarization Switching

open access: yesLaser &Photonics Reviews, EarlyView.
Photonic computing needs a compact node that can hold a binary state and update it fast. A vertical‐cavity surface‐emitting laser biased at its polarization‐switching point could serve as one: its two orthogonal linear polarizations are the two states, and a small electrical drive is enough to move the output from one state to the other at gigahertz ...
Zifeng Yuan   +6 more
wiley   +1 more source

Thermofield Effects in Graphite-like Amorphous Carbon Films with Nanoscale Structure. [PDF]

open access: yesMaterials (Basel)
Muratova EN   +6 more
europepmc   +1 more source

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

open access: yesLaser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang   +12 more
wiley   +1 more source

Observation of proton tunneling correlated with phonons and electrons in Pd. [PDF]

open access: yesSci Adv
Ozawa T   +5 more
europepmc   +1 more source

Electrochemical Investigation of Alumina Thin Films for Electronic Packaging

open access: yesMaterials and Corrosion, EarlyView.
Surface morphology of alumina films on copper substrates produced by ALD. Characterization of the alumina film properties by FTIRR (left) and EIS (right). ABSTRACT Thin films of alumina processed by atomic layer deposition (ALD) were electrochemically investigated by impedance spectroscopy (EIS) and linear sweep voltammetry (LSV) as well as material ...
M. Schneider   +4 more
wiley   +1 more source

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