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A Precise Oxide Film Thickness Measurement Method Based on Swept Frequency and Transmission Cable Impedance Correction.
Sensors (Basel)
January 2025
School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China.
Accurately measuring the thickness of the oxide film that accumulates on nuclear fuel assemblies is critical for maintaining nuclear power plant safety. Oxide film thickness typically ranges from a few micrometers to several tens of micrometers, necessitating a high-precision measurement system. Eddy current testing (ECT) is commonly employed during poolside inspections due to its simplicity and ease of on-site implementation.
View Article and Find Full Text PDFA Novel Mesoscale Eddy Identification Method Using Enhanced Interpolation and A Posteriori Guidance.
Sensors (Basel)
January 2025
Dalian Naval Academy Cadet Brigade, Dalian 116000, China.
Mesoscale eddies are pivotal oceanographic phenomena affecting marine environments. Accurate and stable identification of these eddies is essential for advancing research on their dynamics and effects. Current methods primarily focus on identifying Cyclonic and Anticyclonic eddies (CE, AE), with anomalous eddy identification often requiring secondary analyses of sea surface height anomalies and eddy center properties, leading to segmented data interpretations.
View Article and Find Full Text PDFSimulation Research on Low-Frequency Magnetic Noise in Fe-Based Nanocrystalline Magnetic Shields.
Materials (Basel)
January 2025
School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.
Depending on high permeability, high Curie temperature, and low eddy current loss noise, nanocrystalline alloys, as the innermost layer, exhibit great potential in the construction of cylindrical magnetic shielding systems with a high shielding coefficient and low magnetic noise. This study compares a magnetic noise of 1 Hz, simulated by the finite element method (FEM), of a cylindrical nanocrystalline magnetic shield with different structural parameters based on the measured initial permeability of commercial Fe-based nanocrystalline (1K107). The simulated results demonstrate that the magnetic noise is irrelevant to the pump and probe hole diameter.
View Article and Find Full Text PDFProximal remote sensing: an essential tool for bridging the gap between high-resolution ecosystem monitoring and global ecology.
New Phytol
January 2025
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91011, USA.
A new proliferation of optical instruments that can be attached to towers over or within ecosystems, or 'proximal' remote sensing, enables a comprehensive characterization of terrestrial ecosystem structure, function, and fluxes of energy, water, and carbon. Proximal remote sensing can bridge the gap between individual plants, site-level eddy-covariance fluxes, and airborne and spaceborne remote sensing by providing continuous data at a high-spatiotemporal resolution. Here, we review recent advances in proximal remote sensing for improving our mechanistic understanding of plant and ecosystem processes, model development, and validation of current and upcoming satellite missions.
View Article and Find Full Text PDFThermal Analysis of Electromagnetic Induction Heating for Cylinder-Shaped Objects.
Electrophoresis
January 2025
School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, USA.
Induction heating is one of the cleanest and most efficient methods for heating materials, utilizing electromagnetic fields induced through AC electric current. This article reports an analytical solution for transient heat transfer in a three-dimensional (3D) cylindrical object under induction heating. A simplified form of Maxwell's equations is solved to determine the heat generation inside the cylinder by calculating the current density distribution within the body.
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