Results 121 to 130 of about 7,891,445 (296)

Differential Vortex Beam Interferometry for Nanometric Asymmetric Shaft Misalignment

open access: yesPhotonics
This paper proposes a Misalignment Differential Vortex Beam Interferometer (MD-VBI) integrated with DenseNet-169 for high-precision asymmetric shaft alignment.
Tao Yuan   +4 more
doaj   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

open access: yesAdvanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle   +5 more
wiley   +1 more source

Modeling and Mitigating Electromagnetic Interference Crosstalk From High-to-Low-Voltage Systems in Electric Vehicles

open access: yesIEEE Access
As electric vehicles (EVs) advance in functionality and integration, managing electromagnetic interference (EMI) is critical to meeting stringent electromagnetic compatibility (EMC) standards like CISPR 25. This study investigates EMI issues in both high-
Shih-Fan Liu   +3 more
doaj   +1 more source

Common-mode noise analysis, modeling and filter design for a phase-shifted full-bridge forward converter

open access: yes, 2015
This paper presents the common-mode noise analysis and modeling of a phase-shifted full-bridge forward converter. The common-mode noise source due to a transformer inter-winding capacitance is considered for the case of study.
Ishtiyaq Ahmed Makda   +3 more
core   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Predicting fan noise propagation in aeroengine bypass ducts

open access: yes, 2009
This thesis explores the prediction of rearwards fan noise propagation within the bypass duct and its radiation into the far feld. Two recently developed models: B-induct and GXMunt, are exploited in application to real engine bypass ducts and their ...
McAleer, Claire Roisin
core   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

A study of common mode noise in switching power supply from a current balancing viewpoint

open access: yes, 1999
Common mode noise current is a major source of EMI in switching mode power supply, the generation mechanism is studied from a current balancing point of view in this paper.
N.K. Poon   +9 more
core   +1 more source

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