Results 81 to 90 of about 2,012,293 (294)
Speckle noise in direct-detection lidar systems [PDF]
The speckle noise is evaluated from some typical lidar systems. The governing equations are summarized. The mutual intensity function of the speckle pattern is calculated in terms of the laser radiation modes.
Gardner, C. S., Mecherle, G. S.
core +1 more source
Laser vibrometry meets laser speckle
SPIE Proceedings, 2004 This paper begins with a review of the fundamental mechanism by which speckle noise is generated in Laser Vibrometry before describing a new numerical simulation of speckle behavior for prediction of noise level in a real measurement. The simulation data provides real insight into the phase and amplitude modulation of the Doppler signal as a result of ...
Steve J. Rothberg, Benjamin J. Halkon
openaire +2 more sources
Plastic and Reconstructive Surgery, 2019 Summary: Adequate tissue perfusion is essential to minimize postoperative complications following microsurgery. Intraoperative knowledge of tissue perfusion could aid surgical decision-making and result in reduced complications.
Cynthia To +6 more
semanticscholar +1 more source
Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies
Advanced Healthcare Materials, EarlyView.Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best +5 more
wiley +1 more source
Super-resolution photoacoustic imaging via flow induced absorption fluctuations
, 2017 In deep tissue photoacoustic imaging the spatial resolution is inherently limited by the acoustic wavelength. We present an approach for surpassing the acoustic diffraction limit by exploiting temporal fluctuations in the sample absorption distribution ...
Arnal, Bastien +4 more
core +3 more sources
Epidermal Patch Technologies for Integrated Healthcare and Infection Management
Advanced Healthcare Materials, EarlyView.Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang +7 more
wiley +1 more source
Analytical procedure for evaluating speckle-effect instrumentation [PDF]
A general analysis suitable for developing speckle effect instruments and a simplified analysis suitable for evaluating laser speckle instrumentation are presented. The simplified analysis is summarized as a list of equations. Several sample applications
Decker, A. J.
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Metamaterial-based polarization control plate for producing incoherent laser irradiation
, 2012 We present a metamaterial-based random polarization control plate to produce incoherent laser irradiation by exploiting the ability of metamaterial in local polarization manipulation of beam upon transmission via tuning its local geometry.
Fan, Dianyuan +4 more
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Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release
Advanced Healthcare Materials, EarlyView.A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao +5 more
wiley +1 more source
Manual for extending the laser specklegram technique to strain analysis of rotating components [PDF]
The theory, techniques, and equipment necessary for extending laser speckle techniques to analyze stresses in rotating blades are described. Details for setting up the equipment, for timing the events, for data recording, and for data analysis are ...
Chien, L. C. +3 more
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