Results 91 to 100 of about 1,260,020 (249)
Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation
Advanced Optical Materials, EarlyView.A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu +10 more
wiley +1 more source
A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine
Advanced Robotics Research, EarlyView.This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff +4 more
wiley +1 more source
Dual-Wavelength Confocal Laser Speckle Contrast Imaging Using a Deep Learning Approach
PhotonicsThis study developed a novel dual-wavelength confocal laser speckle imaging platform. The system includes both visible and near-infrared lasers and two imaging modes: confocal and wide-field laser speckle contrast imaging.
E Du +10 more
doaj +1 more source
3D‐Printing Aided Rapid Prototyping of Pretensioned Tensegrity Structures for Robotic Applications
Advanced Robotics Research, EarlyView.Printing, injection molding, and assembly (PMA) is a method for rapid prototyping mesoscale, topologically complex, and tensioned tensegrity structures. In combination with PMA method, two mold design strategies: modular mold and compact channel layout, enable efficiency and scalability for tensegrity fabrication.
Yi Sun +3 more
wiley +1 more source
Biomechanics of Laser Speckle Fields Produced by Probing Scattering Tissues in Vivo
Механика машин, механизмов и материалов, 2010 The formation and dynamics of the speckle field pattern by probing 3D nonstationary media with laser beam have been described. The examples of use of the laws of the speckle fields dynamics for bio-tissues monitoring in vivo have been given.
O.V. Meleeva , N.A. Fomin
doaj
IEEE Photonics JournalLaser speckle caused by high coherence severely affects the image quality. The traditional optical approaches cannot effectively suppress speckles without compromising the coherence of the laser in the optical path.
Xin Jiang +6 more
doaj +1 more source
Speckle correlation used for measuring microstructural changes in paper
, 2003 In this paper the use of laser speckle correlation as a mean to measure the micro-structural changes in paper exposed to a changing environment will be presented. Of particular interest will be changes in humidity and crack propagation.
Sjödahl, Mikael, +3 more
core +1 more source
Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots
Advanced Robotics Research, EarlyView.This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou +4 more
wiley +1 more source
Измерение, мониторинг, управление, контрольBackground. The development of modern technologies for manufacturing metal products of complex geometric shapes, which include the method of metal injection molding (MIM), confirms the need to improve methods and means of non-destructive surface quality ...
I.A. Rubtsov +5 more
doaj +1 more source
Impact of velocity distribution assumption on simplified laser speckle imaging equation [PDF]
, 2008 Since blood flow is tightly coupled to the health status of biological tissue, several instruments have been developed to monitor blood flow and perfusion dynamics. One such instrument is laser speckle imaging.
ILEANA GUIZAR ITURBIDE +3 more
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