Results 181 to 190 of about 816,421 (295)

Raw IV-curve and continuous-voltage measurements for current-ripple PEM electrolyser degradation study

open access: green
Kingston Nguyen   +4 more
openalex   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

open access: yesAdvanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash   +6 more
wiley   +1 more source

Ripple voltage of d. c. generator, ( I ) theoretical formura for low-frequency ripple voltage of two-pole machine

open access: yesRipple voltage of d. c. generator, ( I ) theoretical formura for low-frequency ripple voltage of two-pole machine
Ripple Voltage of d. c. generator can be classified according to the origin of generation : (i) Low-frequency ripple (ii) Slot ripple (iii) High-frequency ripple. As the first step of studying ripple voltage, we have perfomed theoretical and exprimental research of low-frequency voltage, because, due to its complexity, no quantitative and theoretical ...
openaire   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

open access: yesAdvanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar   +1 more
wiley   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

open access: yesAdvanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee   +5 more
wiley   +1 more source

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

open access: yesAdvanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa   +5 more
wiley   +1 more source

Study on Torque Ripple Suppression in Low-Speed Permanent Magnet Synchronous Motors Using the Current Averaging Method and Harmonic Voltage Injection

open access: gold
Junguo Cui   +9 more
openalex   +1 more source

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