Results 61 to 70 of about 3,080 (207)
Membrane Mirrors With Bimorph Shape Actuators [PDF]
Deformable mirrors of a proposed type would be equipped with relatively-large-stroke microscopic piezoelectric actuators that would be used to maintain their reflective surfaces in precise shapes.
Yang, Eui-Hyeok
core +1 more source
Advanced Intelligent Systems, EarlyView.Poly(vinylidene fluoride) (PVDF)‐based ferroelectric materials exhibit high strains, energy densities and coupling efficiencies, appealing for diverse applications requiring smart material actuators. This work reviews electromechanical transduction in PVDF‐based polymers and their modifications, implementation in actuators, and functional devices ...
Giulio Gallucci, Andres Hunt
wiley +1 more source
Generation of a flat-top laser beam for gravitational wave detectors by means of a nonspherical Fabry-Perot resonator [PDF]
, 2007 We have tested a new kind of Fabry-Perot long-baseline optical resonator proposed to reduce the thermal noise sensitivity of gravitational wave interferometric detectors--the "mesa beam" cavity--whose flat top beam shape is achieved by means of an ...
Agresti, J. +14 more
core +1 more source
TacEva: A Performance Evaluation Framework for Vision‐Based Tactile Sensors
Advanced Intelligent Systems, EarlyView.This work introduces TacEva, a unified framework for evaluating vision‐based tactile sensors. It standardizes intrinsic, performance, and robustness metrics through shared experimental procedures and links them to task‐level requirements in robotic manipulation.
Qingzheng Cong +5 more
wiley +1 more source
MEMS Deformable Mirrors for Adaptive Optics Actuated by Piezoelectric PZT Films
IEEJ Transactions on Sensors and Micromachines, 2007 The piezoelectric MEMS deformable mirrors for adaptive optics have been developed to realize low voltage and large stroke deformable mirrors. The PZT film was deposited on a Pt-coated silicon-on-insulator (SOI) substrate and the 19 segmented electrodes were prepared on it. The circular diaphragm structure was fabricated by etching the Si substrate from
Isaku Kanno +3 more
openaire +2 more sources
Shape Correction of Thin Mirrors [PDF]
, 2011 Future large space observatories will require large apertures to provide better resolution and greater light gathering power; thin mirror technologies provide one possible route for addressing this need.
Patterson, Keith, Pellegrino, Sergio
core +1 more source
Advanced Intelligent Systems, EarlyView.A modular eight‐legged robot exploits anisotropically oriented soft I‐beam backbones to transmit vibration from a single unbalanced‐mass actuator, producing frequency‐dependent multimodal gaits. A pseudo‐rigid‐body model enables high‐fidelity MuJoCo simulation, while Bayesian parameter identification and reinforcement learning yield robust control ...
Yiğit Yaman +4 more
wiley +1 more source
3D Hydrogel Cell Cultures and Their Biomedical Applications
Advanced NanoBiomed Research, EarlyView.The review highlights the advantages of hydrogel‐based 3D cell cultures over traditional 2D models. These hydrogels closely mimic natural cellular environments, improving research in tissue engineering, drug discovery, cancer studies, and neuroscience.
Tri Lan Thai +7 more
wiley +1 more source
Optically Driven Deformable Mirrors [PDF]
Optically driven deformable mirrors may eventually supplant electrically driven deformable mirrors in some adaptive-optics and active-optics applications. Traditionally, the mirror facets in electrically driven deformable mirrors are actuated, variously,
Hemmati, Hamid
core +1 more source
Coherent control of plasma dynamics
, 2015 Coherent control of a system involves steering an interaction to a final coherent state by controlling the phase of an applied field. Plasmas support coherent wave structures that can be generated by intense laser fields.
He, Z. -H. +5 more
core +1 more source