Results 51 to 60 of about 2,623 (238)

Phase‐Resolved Dual Control of Phenol Photodissociation at the Air–Water Interface From Structure‐Resolved Statistics

open access: yesAdvanced Science, EarlyView.
Faster phenol photolysis at the air–water interface arises from two cooperative factors: a more favorable initial microenvironment for solvent‐side electron stabilization, which lowers CI access, and a more labile hydrogen‐bond network, which more readily reorganizes to stabilize the dark‐state intermediate.
Qiang Yin   +8 more
wiley   +1 more source

Individual Tree Crown Delineation in Heterogeneous Urban Environments Using High-Resolution Airborne Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Urban trees are crucial to mitigate the increasing urban temperatures caused by climate change. Tree inventories, which are useful for urban planning and tree management, are mostly based on expensive and incomplete in situ measurements. Freely available
Oliver Schutte   +2 more
doaj   +1 more source

The Preparatory (Anti)Bonding Character of Molecular Orbitals

open access: yesAdvanced Science, EarlyView.
Herein, a concept to qualitatively predict changes in bond dissociation energies upon reduction or oxidation of molecular compounds is introduced. Changing the population of so‐called preparatory molecular orbitals influences how molecular fragments are relaxing after bond cleavage, which is shown for isolated organometallic aluminum compounds as well ...
Jonas O. Wenzel   +10 more
wiley   +1 more source

Modular Fusion for Individual Tree Crown Delineation from Airborne LiDAR Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Accurate delineation of individual tree crowns (ITC) is essential for forest inventory, biomass estimation, and ecological monitoring. Airborne LiDAR data provide an effective basis for this task, but accurate delineation remains challenging due to ...
J. Gourde, B. Hu, Q. Li
doaj   +1 more source

Fusion of crown and trunk detections from airborne UAS based laser scanning for small area forest inventories

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
High density point clouds from unmanned airborne laser scanning (UALS) systems have great potential for small area forest inventories. We propose an UALS-based tree level inventory method that takes advantage of both the segmented crowns and segmented ...
Mikko Kukkonen   +3 more
doaj   +1 more source

Cation Diffusion‐Mediated Displaced Reaction‐Transformation in Green Steelmaking

open access: yesAdvanced Science, EarlyView.
The removal of O lattice atoms by environmental H2 at the surface of Fe3O4 results in Fe enrichment, driving the inward diffusion of Fe cations into the bulk. Through hopping between unoccupied and initially occupied sites, cation diffusion triggers a spatially displaced reaction‐transformation and drives subsequent dynamic phase transformations and ...
Guangyi Guo   +7 more
wiley   +1 more source

Forest Delineation Based on Airborne LIDAR Data

open access: yesRemote Sensing, 2012
The delineation of forested areas is a critical task, because the resulting maps are a fundamental input for a broad field of applications and users.
Norbert Pfeifer   +3 more
doaj   +1 more source

TED1 Promotes the Assembly of SCFD3‐D14‐D53 to Reinforce Strigolactone Signaling in Rice

open access: yesAdvanced Science, EarlyView.
This study identifies TED1 as a positive regulator of strigolactones (SL) signaling in rice. The ted1 mutants display dwarfism and increased tillering with significantly reduced SLs sensitivity. Through its longer C‐terminal region, TED1 interacts with D53 and D14 to promote the assembly of SCFD3‐D14‐D53, thereby facilitating the efficient ...
Sheng Luo   +22 more
wiley   +1 more source

Stand Delineation of Pinus sylvestris L. Plantations Suffering Decline Processes Based on Biophysical Tree Crown Variables: A Necessary Tool for Adaptive Silviculture

open access: yesRemote Sensing, 2021
Many planted Pinus forests are severely affected by defoliation and mortality processes caused by pests and droughts. The mapping of forest tree crown variables (e.g., leaf area index and pigments) is particularly useful in stand delineation for the ...
Mª Ángeles Varo-Martínez   +1 more
doaj   +1 more source

A Mesoionic Platform for Persistent Anionic Nitrogen‐Centered Radicals

open access: yesAngewandte Chemie, EarlyView.
Charge did not meet spin: Mesoionic 1,2,3‐triazines undergo reversible one‐electron reduction to persistent anionic nitrogen‐centered radicals. Electron paramagnetic resonance, single‐crystal x‐ray diffraction, and calculations reveal nitrogen‐localized spin and structural reorganization, while crystalline salts show clean redox cycling.
Deepak Ranolia   +8 more
wiley   +2 more sources

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