Results 101 to 110 of about 119,906 (299)

A Transparent Semicrystalline Polymer Used in Thermally Responsive Smart Window Application

open access: yesAdvanced Functional Materials, EarlyView.
A thermally responsive smart window is fabricated based on a transparent semicrystalline polymer via copolymerizing stearyl acrylate and ethoxylated trimethylolpropane triacrylate. The high transparency is achieved by restricting the crystal domain to nanometer size via ultraviolet curing at a high temperature.
Jiacheng Fan   +12 more
wiley   +1 more source

Endoscopic Pan/Tilt Camera for Thorax Interventions – Design and first results

open access: yesCurrent Directions in Biomedical Engineering, 2019
Minimally invasive surgery in some cases suffers from a limited view because certain areas are obscured by others. In this paper, a system is described, which can be used in minimally invasive procedures as an addition to a standard endoscope to improve ...
Mrokon Alexander   +2 more
doaj   +1 more source

Depth Estimation Based on Pyramid Normalized Cross-Correlation Algorithm for Vergence Control

open access: yesIEEE Access, 2018
A depth estimation algorithm based on vergence vision using a mechanical joint attached to two cameras is proposed. A Gaussian pyramid template-matching approach is used to align the view of the slave camera to the fixation point of the master camera ...
Abdulla Mohamed   +3 more
doaj   +1 more source

Lyot-based Ultra-Fine Pointing Control System for Phase Mask Coronagraphs

open access: yes, 2013
High performance coronagraphic imaging at small inner working angle requires efficient control of low order aberrations. The absence of accurate pointing control at small separation not only degrades coronagraph starlight rejection but also increases the
Baudoz, Pierre   +5 more
core   +1 more source

Wood Reconfiguration Enables Broadband Blackbody in Large‐Area, Modular, Optically Welded Carbon Constructs

open access: yesAdvanced Functional Materials, EarlyView.
Wood‐based broadband blackbody is achieved by reconfiguration of wood with lignin nanoparticles prior carbonization. Neglectable reflectivity from the visible to infrared wavelengths is obtained by combining thin nanostructures originated from the wood cell walls with long‐range microcavities in the wood lumina.
Bin Zhao   +7 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Optimal Aerial Imaging Parameters for UAV-Based Inspection and Maintenance of Photovoltaic Installations

open access: yesEnergies
Unmanned Aerial Vehicles (UAVs) equipped with thermal and RGB cameras and enhanced by deep learning offer a powerful solution for autonomous photovoltaic (PV) system inspection.
Eleftherios G. Vourkos   +4 more
doaj   +1 more source

Underwater Video Survey: Planning and Data Processing [PDF]

open access: yes, 2002
The importance of underwater video surveys as an exploration tool has been steadily increasing over recent years [1]. Better photographic equipment, more effective sources of illumination, and improved processing techniques - all make video surveying a ...
Cutter, Randy G, Jr.   +2 more
core   +1 more source

The Magellan Adaptive Secondary VisAO Camera: Diffraction- Limited Broadband Visible Imaging and 20mas Fiber Array IFS

open access: yes, 2010
The Magellan Adaptive Secondary AO system, scheduled for first light in the fall of 2011, will be able to simultaneously perform diffraction limited AO science in both the mid-IR, using the BLINC/MIRAC4 10\{mu}m camera, and in the visible using our novel
Close, Laird M.   +4 more
core   +1 more source

A Universal Way to Manipulate Droplet via Light‐Fueled Thermocapillary Convection

open access: yesAdvanced Functional Materials, EarlyView.
A non‐contact light‐induced droplet manipulation strategy fueled by mid‐infrared (MIR) light irradiation is introduced. No additional additives and/or complex substrate are required. Here, thermocapillary convection, directly generated by temperature gradient at outer surface of droplet via localized surface heating, plays a key role to propel the ...
Hyesun Hwang   +5 more
wiley   +1 more source

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