Results 191 to 200 of about 189,148 (351)

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner   +21 more
wiley   +1 more source

Binary black-hole simulation SXS:BBH:1374

open access: green, 2019
Ian Hinder   +7 more
openalex   +1 more source

Local Activity and Selectivity Hotspots in Cu‐Pt Model Thin‐Film Electrocatalysts for Oxygen Reduction

open access: yesSmall Methods, EarlyView.
A Cu‐Pt model thin film catalyst is investigated via electrochemical scanning tunneling microscopy. This technique enables in‐operando active site detection on a nanometer scale. It is shown that the precise location of the active sites changes depending on the selectivity of the oxygen reduction reaction.
Lewin V. Deville   +9 more
wiley   +1 more source

Quantifying the Full Damage Profile of Focused Ion Beams via 4D‐STEM Precession Electron Diffraction and PSNR Metrics

open access: yesSmall Methods, EarlyView.
Four‐dimensional scanning transmission electron microscopy (4D‐STEM) is used to acquire multiple convergent beam electron diffraction (CBED) patterns around focused ion beam (FIB) dwelled spots. Peak signal‐to‐noise ratio (PSNR) analysis, following calibration with well‐known implantation dose squares, enables full quantification of the FIB profile ...
Mateus G. Masteghin   +6 more
wiley   +1 more source

A case for a binary black hole system revealed via quasi-periodic outflows. [PDF]

open access: yesSci Adv
Pasham DR   +35 more
europepmc   +1 more source

Monitoring of historical structural materials with computed tomography

open access: yesStructural Concrete, EarlyView.
Abstract Computed tomography (CT) is an excellent tool to solve certain engineering problems connected to material science (such as sulfate swelling, internal degradation due to freezing, and alkali silicate swelling) and to understand specific processes (frost peeling, acid action).
Kristóf Csorba   +5 more
wiley   +1 more source

BaIr2Si9: A Hybrid Structure Bridging Sodalite, Clathrate, and Skutterudite Patterns

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
BaIr2Si9 is a p‐type semiconductor combining structural features of the solalithe, clathrate, and skutterudite type of structure. The cage compound BaIr2Si9 adopts the BaRh2Si9 structure type with space group C2/c (Pearson symbol mC48, a = 6.230(1) Å, b = 21.409(3) Å, c = 6.232(1) Å, β = 90.30(1)°).
Walter Jung   +9 more
wiley   +1 more source

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