Results 41 to 50 of about 345,237 (255)

Warm-started wavefront reconstruction for adaptive optics [PDF]

, 2008
Future extreme adaptive optics (ExAO) systems have been suggested with up to 10^5 sensors and actuators. We analyze the computational speed of iterative reconstruction algorithms for such large systems. We compare a total of 15 different scalable methods,
Lall, Sanjay, Lessard, Laurent, MacMynowski, Douglas, West, Matthew   +3 more
core   +1 more source

Intrinsically Soft Printed Electronics for Digitally Augmented Human Sensing and Vision

Advanced Functional Materials, EarlyView.
This work introduces a class of highly functional, multilayer flexible and stretchable circuits capable of digitally augmenting human sensing and vision. Studies in multi‐material soft composite inks yielded a formulation that enables overpass printing, self‐healing, and high‐resolution functionality.
Nathan Zavanelli, Manuel R. Carneiro, Michael R. Vinciguerra, Dinesh K. Patel, Guo Ning Sue, Yibo Fu, Mahmoud Tavakoli, Carmel Majidi   +7 more
wiley   +1 more source

Turbulence scale effects and resolution requirements in aero-optics.

Applied Optics, 2021
While optical aberrations caused by atmospheric turbulence have been extensively investigated and well characterized, recent research has identified structural differences in optical phase distortions caused by aircraft-induced, compressible turbulence ...
Edwin Mathews, Kan Wang, Meng Wang, E. Jumper   +3 more
semanticscholar   +1 more source

Wetting Interactions Between Porous Carbon Hosts and Liquid Sodium‐Potassium Alloys Toward Their Use in Negative Electrodes of Alkali‐Metal Batteries

Advanced Functional Materials, EarlyView.
Porous carbon host materials are investigated for their possible usage in liquid alkali‐metal negative electrodes. X‐ray computed tomography reveals pore‐filling behavior under various conditions: non‐wetting, forced wetting, and spontaneous wetting. The applicability of porous carbon in electrochemical cells is demonstrated at high areal capacities ...
Johannes Baller, André Hilger, Naiyu Qi, Chiara Morini, Andrea Cornelio, Arndt Remhof, Markus Osenberg, Ingo Manke, Julian Moosmann, Felix Beckmann, Gustav Graeber   +10 more
wiley   +1 more source

A Human Neural Tube Model Using 4D Self‐Folding Smart Scaffolds

Advanced Healthcare Materials, EarlyView.
Induced pluripotent stem cells (iPSCs) exhibit features comparable to the inner cell mass of the human embryo. iPSCs are applied to a novel self‐folding 4D‐Neural Tube (4D‐NT) structure that mimics the neurulation process. This 4D‐NT model recapitulates early events of human neural development and represents a platform to explore neurodevelopmental ...
Claudia Dell'Amico, Irene Chiesa, Angela Toffano, Alessio Esposito, Piera Mancini, Chiara Magliaro, Angeliki Louvi, Carmelo De Maria, Marco Onorati   +8 more
wiley   +1 more source

Design Considerations for a Highly Segmented Mirror [PDF]

, 2003
Design issues for a 30-m highly segmented mirror are explored, with emphasis on parametric models of simple, inexpensive segments. A mirror with many small segments offers cost savings through quantity production and permits high-order active and ...
Padin, Stephen
core   +1 more source

A Patient‐Specific 3D Printed Carotid Artery Model Integrating Vascular Structure, Flow, and Endothelium Responses

Advanced Healthcare Materials, EarlyView.
This study introduces the first miniaturized, patient‐specific carotid artery model created via 3D printing using GelMA with embedded vascular cells. Combining CFD, PIV, and flow perfusion, the model replicates anatomically dependent hemodynamics and cellular responses.
Jorge A. Catano, Louis Jun Ye Ong, Mingyang Yuan, Yunkun Qu, Jessica Benitez, Prasad KDV Yarlagadda, Yi‐Chin Toh, Zhiyong Li   +7 more
wiley   +1 more source

A Modular Perfusion Bioreactor Platform for Simulating Bone Regeneration and Fracture Healing: Integrating Mechanical Loading and Dual Perfusion for Advanced In Vitro Models

Advanced Healthcare Materials, EarlyView.
A modular bioreactor platform was developed in order to replicate bone homeostasis and pathology, thereby integrating mechanical loading, dynamic perfusion, and a 3D‐printed microfluidic chamber. With precise control of environmental parameters and dual perfusion for composite tissue models, the system enhances physiological relevance for studying bone
Moritz Pfeiffenberger, Alexandra Damerau, Johannes Plank, Adel Ahmed, Mario Thiele, Jan Saam, Paula Hoff, Timo Gaber, Frank Buttgereit   +8 more
wiley   +1 more source

Large amplitude tip/tilt estimation by geometric diversity for multiple-aperture telescopes

, 2017
A novel method nicknamed ELASTIC is proposed for the alignment of multiple-aperture telescopes, in particular segmented telescopes. It only needs the acquisition of two diversity images of an unresolved source, and is based on the computation of a ...
Cassaing, F., Mugnier, L. M., Vievard, S.   +2 more
core   +1 more source

Harnessing Next‐Generation 3D Cancer Models to Elucidate Tumor‐Microbiome Crosstalk

Advanced Healthcare Materials, EarlyView.
Centralizes the microbiome within 3D tumor‐microbiome model platforms, including spheroids, organoids, 3D‐bioprinted constructs, and microfluidic chips, each enabling structured host‐tumor‐microbe studies. These systems support bacterial colonization, facilitating investigation of microbial impacts on tumor growth, immunity, and therapy. The microbiome
Marina Green Buzhor, Giuseppe Longobardi, Or Kandli, Anne Krinsky, Opal Avramoff, Anshika Katyal, Koren Salomon, Adan Miari, Dana Venkert, Tania T. Barnatan, América García Alvarado, Shahar Greenberg, Ronit Satchi‐Fainaro   +12 more
wiley   +1 more source