Results 191 to 200 of about 3,238,502 (335)

A Unified Enhanced Quasi‐Electrostatic 3D Charge Model for Accurate Prediction and Design Optimization of Contact‒Separation Triboelectric Nanogenerators

open access: yesAdvanced Materials Technologies, EarlyView.
New theoretical model for vertical contact and separation mode triboelectric nanogenerator is proposed. Detailed derivation process and results are discussed. Numerical solutions and parametric studies are presented. Calculated results are validated by experimental outcomes.
Seokjin Kim   +2 more
wiley   +1 more source

Direct Integration of Polycrystalline Diamond With 3C‐SiC for Enhanced Thermal Management in GaN HEMTs: Impact of Grain Structure and Interface Engineering

open access: yesAdvanced Materials Technologies, EarlyView.
Polycrystalline diamond (PCD) is directly bonded to 3C‐SiC for GaN HEMTs on a 2‐inch wafer using an advanced room‐temperature process. Despite high thermal conductivity at the growth surface, phonon scattering at the fine‐grained nucleation side raises thermal resistance.
Chiharu Moriyama   +7 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Hydrothermal synthesis of nanohydroxyapatite-activated carbon composites and its slow-release performance for urea. [PDF]

open access: yesSci Rep
Hemzah SA   +7 more
europepmc   +1 more source

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