Results 111 to 120 of about 3,082,243 (295)
Silica microfibres for broadband third harmonic generation
We report broadband third harmonic generation via intermodal phase matching in silica microfibres of several centimetres. A 5 dB conversion bandwidth exceeding 36 nm was recorded, with harmonic power detected over a 150 nm ...
Ding, M. +5 more
core +1 more source
Research of harmonic detection method based on improved wavelet packet transformatio
Gong-kuang zidonghua, 2013 For problems of fence effect and spectrum leakage of harmonic detection method based on Fourier transformation, the paper proposed a harmonic detection method based on improved wavelet packet transformation. The method achieves uniform division of signal
ZHU Gao-zhong
doaj
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
A harmonic current detection method based on improved HHT
Zhejiang dianliTo resolve the endpoint effects and mode mixing （MM） that arise during harmonic current detection using Hilbert-Huang Transform （HHT）， an improved harmonic current detection method based on HHT is proposed.
ZHANG Weisheng +6 more
doaj +1 more source
On abolishing symmetry requirements in the formulation of a five-level selective harmonic elimination pulse-width modulation technique [PDF]
, 2006 Selective harmonic elimination pulse width modulation (SHE-PWM) techniques offer a tight control of the harmonic spectrum of a given voltage waveform generated by a power electronic converter along with a low number of switching transitions.
Rao, M.V. +2 more
core
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Harmonic imaging for nonlinear detection of acoustic biomolecules
APL BioengineeringABSTRACT Gas vesicles (GVs) based on acoustic reporter genes have emerged as potent contrast agents for cellular and molecular ultrasound imaging. These air-filled, genetically encoded protein nanostructures can be expressed in a variety of cell types in vivo to visualize cell ...
Rohit Nayak +5 more
openaire +4 more sources
Advanced Engineering Materials, EarlyView.A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed +6 more
wiley +1 more source
Enhanced second harmonic generation in microfiber loop resonators
Silica nanowires with high nonlinearities are attractive for a variety of applications such as continuum generation and new light sources. In particular, a growing interest was shown for using these nanowires for second harmonic generation (SHG) and ...
Ismaeel, R. +3 more
core +1 more source
Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows
Advanced Engineering Materials, EarlyView.A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba +5 more
wiley +1 more source