Results 71 to 80 of about 13,304 (203)
Edge Enhancement Investigations by Means of Experiments and Simulations [PDF]
Standard neutron imaging procedures are based on the “shadow” of the transmitted radiation, attenuated by the sample material. Under certain conditions significant deviations from pure transmission can be found in the form of enhancement or depression at
Lehmann, E. +3 more
core +1 more source
Beyond Imperfect Match: Silicon/Graphite Hybrid Anodes for High‐Energy–Density Lithium‐Ion Batteries
Silicon/graphite (Si/Gr) hybrid anodes are limited by Si's large volume change and mismatch with Gr. This review offers mechanistic insights into imperfectly matched Si/Gr hybrid anodes, elucidating heterogeneous lithiation behavior and interfacial failure pathways, and thereby informing the design of durable, high‐energy–density lithium‐ion batteries.
Jing Li +6 more
wiley +1 more source
Automatic classification of multi-channel PSD results combining unsupervised and supervised learning
Fast neutron radiography is a nondestructive testing technique used in various fields, such as homeland security. Fast neutrons can be detected using either a thermal neutron capture detection system with moderators or a recoil proton-based neutron ...
Gyohyeok Song +6 more
doaj +1 more source
Imaging of microplastic distribution–related unsaturated water flow in sand
Abstract Soil is the largest sink of microplastic (MP) in terrestrial ecosystems, yet little is known about the transport of MP in soils and its effect on water flow. Since pristine MP can generally be considered water repellent, the transport of MP and water flow are subject to feedback processes.
A. Cramer +5 more
wiley +1 more source
Cosmic ray muon computed tomography of spent nuclear fuel in dry storage casks
Radiography with cosmic ray muon scattering has proven to be a successful method of imaging nuclear material through heavy shielding. Of particular interest is monitoring dry storage casks for diversion of plutonium contained in spent reactor fuel. Using
Bacon, J. D. +7 more
core +1 more source
Subfreezing operation of polymer electrolyte fuel cells: Ice formation and cell performance loss [PDF]
In this work, we investigate the cold-start operation of polymer electrolyte fuel cells (PEFCs) through high-resolution neutron radiography, experimental testing, theoretical evaluation, and comparison with model prediction.
Borup, RL +4 more
core +2 more sources
Abstract Seismological observations in the lunar mantle, in conjunction with experimental knowledge on the elastic wave velocities and density of lunar mantle minerals, provide important constraints on the composition and mineralogy of the lunar mantle. Here we report elastic wave velocities and density of a lunar orthopyroxene (Mg0.84Fe0.13Ca0.03SiO3)
Yoshihiro Inoue +7 more
wiley +1 more source
Heterogeniety in electrochemical systems heavily influences device performance and durability. The study shows unique evidence of spatio‐operational heterogeneity in fuel cells via operando neutron and X‐ray tomography. Large variations in membrane thickness and hydration depend upon location and operating conditions, with implications on membrane ...
Pranay Shrestha +9 more
wiley +1 more source
We performed neutron imaging of ferromagnetic transitions in Ni$_3$Al and HgCr$_2$Se$_4$ crystals. These neutron depolarization measurements revealed bulk magnetic inhomogeneities in the ferromagnetic transition temperature with spatial resolution of ...
Abir, Muhammad +8 more
core +1 more source
Hierarchical co‐assembly of physically exfoliated and mechanochemically functionalized boron nitride enables binder‐free, shape‐programmable monoliths. This strategy secures tunable rheology for diverse processing forms while achieving exceptional thermal conductivity and neutron shielding performance, offering a robust solution for thermal management ...
Yujin Han +9 more
wiley +1 more source

