Results 101 to 110 of about 504,859 (272)

Adaptive piston correction of sparse aperture systems with stochastic parallel gradient descent algorithm.

open access: yesOptics Express, 2018
A phased sparse aperture system provides an economic solution to get high resolution images with less volume and weight. The crucial point of such systems is adaptive correction of piston, that is, a close-loop control aiming at stabilizing the optical ...
Zongliang Xie   +6 more
semanticscholar   +1 more source

Microstructure of Lithium Metal Electrodeposited at the Steel|Li6PS5Cl Interface in “Anode‐Free” Solid‐State Batteries

open access: yesAdvanced Energy Materials, Volume 15, Issue 16, April 22, 2025.
Reservoir‐free cells do not use lithium metal during cell preparation. Instead, lithium is electrodeposited during the initial charging step, potentially simplifying the manufacturing of solid‐state batteries. The electrochemical properties of the electrodeposited lithium layer are governed by its morphology and microstructure. However, little is known
Juri Becker   +5 more
wiley   +1 more source

Astrometry with the Keck-Interferometer: the ASTRA project and its science

open access: yes, 2008
The sensitivity and astrometry upgrade ASTRA of the Keck Interferometer is introduced. After a brief overview of the underlying interferometric principles, the technology and concepts of the upgrade are presented.
Andrea M. Ghez   +44 more
core   +1 more source

Phase measurement of a segmented wave front using PISton and TILt interferometry (PISTIL).

open access: yesOptics Express, 2018
New architectures for telescopes or powerful lasers require segmented wave front metrology. This paper deals with a new interferometric wave front sensing technique called PISTIL (PISton and TILt), able to recover both piston and tilts of segment beams ...
M. Deprez   +4 more
semanticscholar   +1 more source

Metal Sulfides as Potential Materials for Next Generation Lithium Ion Batteries: A Review

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The flame spray pyrolysis (FSP) method demonstrates its superiority in fabricating metal sulfide‐based electrodes without inactive materials like organic binders or solvents. The particles are directly deposited and compressed onto the electrode surface, integrating into continuous production.
Muhammad Ali Martuza   +2 more
wiley   +1 more source

Optimal Shortcuts to Adiabaticity for a Quantum Piston [PDF]

open access: yesAutomatica, Vol. 49, pp. 3079-3083, 2013, 2013
In this paper we use optimal control to design minimum-time adiabatic-like paths for the expansion of a quantum piston. Under realistic experimental constraints, we calculate the minimum expansion time and compare it with that obtained from a state of the art inverse engineering method.
arxiv  

An experimental flow regime map to dynamically structure gas–solid bubbling fluidized beds

open access: yesAIChE Journal, Volume 71, Issue 5, May 2025.
Abstract Employing oscillatory gas flows to create ordered bubble dynamics in fluidized beds represents a promising approach in reactor design, enhancing efficiency, scalability, and control. This study reports an extensive experimental campaign that identifies the operational regime for structuring Geldart B fluidized beds, introducing a novel pattern
Kaiqiao Wu   +3 more
wiley   +1 more source

Phasing the Giant Magellan Telescope: Lab Experiments and First On-sky Demonstration [PDF]

open access: yes
The large apertures of the upcoming generation of Giant Segmented Mirror Telescopes will enable unprecedented angular resolutions that scale as $\propto$ $\lambda$/D and higher sensitivities that scale as $D^4$ for point sources corrected by adaptive optics.
arxiv   +1 more source

Patient‐Mounted Neuro Optical Coherence Tomography for Targeted Minimally Invasive Micro‐Resolution Volumetric Imaging in Brain In Vivo

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Herein, a patient‐mounted neuro optical coherence tomography system that integrates a 5 degrees‐of‐freedom skull‐mounted robot (Skullbot) with a 0.6 mm neuroendoscope for targeted, minimally invasive deep brain imaging, is developed. The system offers high‐resolution imaging with precise deployment, demonstrated through successful tumor imaging in a ...
Chao Xu   +7 more
wiley   +1 more source

Advances in 3D and 4D Printing of Soft Robotics and Their Applications

open access: yesAdvanced Intelligent Systems, EarlyView.
This article summarizes the development of 3D‐printed soft robotics in the recent decade. The article discusses the printing capabilities of different additive manufacturing technologies in terms of soft polymers, multimaterial printability, soft robotic printing, and 4D printing.
Hao Liu   +5 more
wiley   +1 more source

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