Results 51 to 60 of about 172,799 (305)
, 2017 Scattering of obliquely incident electromagnetic waves from periodically space-time modulated slabs is investigated. It is shown that such structures operate as nonreciprocal harmonic generators and spatial-frequency filters.
Caloz, Christophe +2 more
core +1 more source
Theoretical studies of high-harmonic generation: Effects of symmetry, degeneracy and orientation [PDF]
, 2007 Using a quantum mechanical three-step model we present numerical calculations on the high-harmonic generation from four polyatomic molecules. Ethylene (C$_2$H$_4$) serves as an example where orbital symmetry directly affects the harmonic yield.
Madsen, C. B., Madsen, L. B.
core +1 more source
Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae
FEBS Open Bio, EarlyView.Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj +3 more
wiley +1 more source
Magnitude-Reshaping Strategy for Harmonic Suppression of VSG-Based Inverter Under Weak Grid
IEEE Access, 2020 Driven by inertial demand from the grid, the virtual synchronous generators (VSGs) are widely utilized in distributed generation systems. However, harmonic sources in the distributed generation systems with high grid impedance will cause grid voltage ...
Wen Yang +3 more
doaj +1 more source
Detection of Mistuning in Harmonic Complex Tones at High Frequencies
Acta Acustica united with Acustica, 2018 Lau et al. [1] showed that listeners could discriminate differences in the fundamental frequency (F0) of harmonic complex tones containing only very high frequency components, even though the discriminability of those components, when presented alone, was very poor. They attributed this finding to the operation of central pitch-sensitive neurons.
Gockel, HE, Carlyon, RP
openaire +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Coexistence of Bloch and Parametric Mechanisms of High-Frequency Gain in Doped Superlattices
Nanomaterials, 2023 The detailed theoretical study of high-frequency signal gain, when a probe microwave signal is comparable to the AC pump electric field in a semiconductor superlattice, is presented.
Vladislovas Čižas +3 more
doaj +1 more source
Harmonic emission from cluster nanoplasmas subject to intense short laser pulses
, 2008 Harmonic emission from cluster nanoplasmas subject to short intense infrared laser pulses is studied. In a previous publication [M. Kundu et al., Phys. Rev.
A. J. Lichtenberg +10 more
core +1 more source
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
LCCR Filter Design Method and High‑Frequency Current Harmonic Suppression in PMSM
Nanjing Hangkong Hangtian Daxue XuebaoThe switching current harmonics caused by pulse width modulation（PWM） leads to overheating of the drive motor in vacuum environment， which affecting the reliability of the molecular pump.
WANG Tianzuo +3 more
doaj +1 more source