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Compression of surface texture acceleration signal based on spectrum characteristics

The study proposes a spectral feature-based compression method for vibrotactile acceleration signals, which achieves high time-frequency similarity and a 10% compression ratio. The method is suitable for long-term data compression and can further reduce the compression ratio for multi-interaction points.

SourceBeijing Zhongke Journal Publising Co. Ltd.·JournalVirtual Reality & Intelligent Hardware·DateMay 12, 2023
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Graphene crystals grow better under copper cover

Researchers successfully grow high-quality single-crystal graphene sheets on insulating supports using a copper-catalyzed decomposition method. The resulting graphene exhibits excellent electronic performance due to its high crystallinity and minimal surface folds.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalNature Materials·TypeExperimental study·DateMar 31, 2022

A new understanding of protein movement

Engineers from the University of Delaware develop procedure to purify monoclonal antibodies with 43% higher productivity, thanks to understanding of adsorption affinity and its role in protein transport into ion-exchange beads. This breakthrough could lead to reduced waste during expensive drug manufacturing process.

SourceUniversity of Delaware·JournalProceedings of the National Academy of Sciences·DateJul 7, 2020

Electrode shape improves neurostimulation for small targets

A fractal-shaped electrode design enhances charge delivery for smaller neural stimulation targets, potentially prolonging device lifespan and improving resolution. The new shape facilitates faster Faradaic charge transfer, resulting in more efficient energy use.

SourcePurdue University·JournalScientific Reports·DateApr 24, 2018

Reducing conducting thin film surface roughness for electronics

University of Massachusetts Amherst engineers develop a physical processing method to reduce surface roughness in conducting thin films. This approach uses electrical surface treatment to smooth out the metallic surface, reducing its ability to conduct electrical and thermal energy.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateMar 7, 2017
SAMSUNG T9 Portable SSD 2TB

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May the force be with the atomic probe

Theoretical physicists created models to study van der Waals-Casimir-Polder (vdW-CP) force, which depends on electron diffusion. This finding could contribute to designing minimally invasive surface probes for quantum computer hardware architectures.

SourceSpringer·JournalThe European Physical Journal D·DateDec 21, 2012