Results 251 to 260 of about 379,307 (352)

Circularly Polarized Structural Color Pigments Tunable Across the Full Visible Spectrum

open access: yesAdvanced Optical Materials, EarlyView.
By infusing black dye into spherical shells of polymerized cholesteric liquid crystal, blue, green and red omnidirectional retroreflectors of circularly polarized structural color are achieved. They can be laid out on arbitrary surfaces without any need for index matching binder to define graphical information for robots and Augmented Reality devices ...
Deniz Işınsu Avşar   +1 more
wiley   +1 more source

Donor‐Substituted C(sp3)‐Bridged Phosphorus‐Heterotriangulenes as Blue Thermally Activated Delayed Fluorescence Emitters

open access: yesAdvanced Optical Materials, EarlyView.
The newly developed regioselective strategy for the para‐functionalization of C(sp3)‐bridged phosphorus‐centered heterotriangulene delivers a series of donor‐acceptor emitters exhibiting thermally activated delayed fluorescence. The carbazole‐substituted compounds feature a unique combination of high photoluminescence quantum yields up to 75%, deep ...
Maximilian Schöner   +8 more
wiley   +1 more source

Comparing methods for estimating leaf area index by multi-angular remote sensing in winter wheat. [PDF]

open access: yesSci Rep, 2020
He L   +7 more
europepmc   +1 more source

Growth and Leaf Area Index Simulation in Maize (<i>Zea mays</i> L.) Under Small-Scale Farm Conditions in a Sub-Saharan African Region

open access: diamond, 2013
Jean-Claude Lukombo Lukeba   +4 more
openalex   +2 more sources

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

open access: yesAdvanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu   +3 more
wiley   +1 more source

Second validation of Leaf Area Index Maps

open access: yes
Second report on the validation of the Leaf Area Index Maps, including error and uncertainty estimates for the products obtained in the four field test areas.
openaire   +1 more source

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