Results 171 to 180 of about 397,959 (286)

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

open access: yesAdvanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler   +3 more
wiley   +1 more source

Finite-Time Controller for Coordinated Navigation of Unmanned Underwater Vehicles in a Collaborative Manipulation Task. [PDF]

open access: yesSensors (Basel), 2022
González-García J   +4 more
europepmc   +1 more source

Temperature‐Induced Nonvolatile Switching through Thermal Hysteresis in a Gd3Fe5O12/Ho3Fe5O12 Exchange‐Coupled Rare‐Earth Iron Garnet Bilayer

open access: yesAdvanced Functional Materials, EarlyView.
Reducing power consumption in spintronic memory remains a major challenge due to the need for high current densities. A bilayer of gadolinium and holmium iron garnets enables purely temperature‐induced, nonvolatile magnetic switching with bistable states within a ±25 K range. This approach achieves up to 66‐fold lower energy use than current spin–orbit
Junseok Kim   +3 more
wiley   +1 more source

Linking Optimization Success and Stability of Finite-Time Thermodynamics Heat Engines. [PDF]

open access: yesEntropy (Basel)
Gonzalez-Ayala J   +6 more
europepmc   +1 more source

Finite-time Euler singularities [PDF]

open access: yes, 2012
Diese Arbeit präsentiert numerische Argumente gegen die Bildung einer finite-time Singularität der inkompressiblen dreidimensionalen Euler-Gleichungen für Vortex-Dodekapol-Startbedingungen. Daten aus hochaufgelösten, adaptiv verfeinerten numerischen Simulationen werden genutzt, um Annahmen von geometrischen Blowup-Kriterien zu prüfen, die geometrische ...
openaire  

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

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