Results 191 to 200 of about 20,560 (308)

KvN mechanics approach to the time-dependent frequency harmonic oscillator. [PDF]

open access: yesSci Rep, 2018
Ramos-Prieto I   +3 more
europepmc   +1 more source

Electroactive Proteinoid–Quantum Dot Systems

open access: yesSmall Science, EarlyView.
Proteinoid‐quantum dot conjugates form toroidal nanostructures (145.2 nm outer diameter, 102.3 nm cavity) via glutamic acid‐phenylalanine‐aspartic acid‐cysteine cross‐linking with sulfo‐SMCC (sulfosuccinimidyl 4‐(N‐maleimidomethyl)cyclohexane‐1‐carboxylate).
Panagiotis Mougkogiannis   +1 more
wiley   +1 more source

Needle in a Haystack: Information Recovery in Low Signal‐to‐Noise Piezoresponse Force Microscopy Data

open access: yesSmall Methods, EarlyView.
Reconstruction of low signal‐to‐noise ratio signals enables improved information recovery in piezoresponse force microscopy data, even in data with a substantial amount of noise. Incorporating signal processing errors to detect and Bayesian matrix completion methods to reconstruct low SNR signals substantially alters the apparent PFM switching ...
Kerisha N. Williams   +5 more
wiley   +1 more source

Broadband Phonon Resonance Spectrum in Host–Guest Resonator Arrays via Nonlocal Coupling

open access: yesSmall Structures, EarlyView.
Introducing nonlocal coupling in host–guest systems induces collective resonance, resulting in a smooth and broadband phonon resonance spectrum. This strategy overcomes the narrowband and antiresonance limitations of local coupling and thus provides a versatile route to manipulate phonon transport.
Shuang Lu   +5 more
wiley   +1 more source

Precise Measurement of Complex Coefficient Filters by Using Square Waves†

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Usually, the frequency characteristics of the complex filter can be examined by applying a pair of quadrature sinusoidal waves (cosωt$$ \cos \omega t $$ and sinωt$$ \sin \omega t $$) to a FUT (filter under test). While this method is recognized for its accuracy, it requires two sinusoidal test signals with tightly matched amplitudes and a strict 90°$$ {
Kazuhiro Shouno   +2 more
wiley   +1 more source

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