Results 141 to 150 of about 777,534 (397)
Superconducting linear actuator [PDF]
Special actuators are needed to control the orientation of large structures in space-based precision pointing systems. Electromagnetic actuators that presently exist are too large in size and their bandwidth is too low.
Hockney, Richard, Johnson, Bruce
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Thermocouple for heating and cooling of memory metal actuators [PDF]
, 1988 A semiconductor thermocouple unit is provided for heating and cooling memory metal actuators. The semiconductor thermocouple unit is mounted adjacent to a memory metal actuator and has a heat sink attached to it.
Wood, Charles
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Advanced Functional Materials, EarlyView.Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang +15 more
wiley +1 more source
Slotted variable camber flap [PDF]
, 1984 Variable camber actuator assemblies broaden the range of speeds at which lift to drag performance is maximized for slotted flap wings. Lift is improved over a broader range of cruising speeds by varying wing camber with rotational flap movements that do ...
Andrews, D. G.
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Nanodiamond Quantum Sensors for Probing Free Radical Biology
Advanced Functional Materials, EarlyView.Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley +1 more source
Micro and Nano EngineeringIn this paper, we demonstrate the fabrication and characterization of bistable piezoelectric plates with a precisely tuned residual stress to achieve buckling-induced bistability.
Shareena Muringakodan +3 more
doaj +1 more source
The linear boom actuator designed for the Galileo spacecraft [PDF]
, 1983 Because the linear boom actuator is to be used on a flight spacecraft, as opposed to a ground based application, there is a comprehensive set of requirements. First, of course, the actuator must be capable of positioning and holding the load.
Koch, E. F.
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Robust Polymer Hydrogels Improve Electric‐Fish‐Inspired Batteries
Advanced Functional Materials, EarlyView.ABSTRACT Electric‐fish‐inspired hydrogel batteries based on ion‐concentration gradients offer an attractive route to soft power sources; however, the poor mechanical properties of existing hydrogels limit device assembly and performance. Here, we report poly(ethylene glycol) methyl ether acrylate hydrogels that enable ion‐gradient batteries composed of
Nick Zahnd +5 more
wiley +1 more source
Hermetically sealed explosive release mechanism Patent [PDF]
, 1967 Hermetically sealed explosive release mechanism for actuator ...
Lee, D. A.
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