Results 51 to 60 of about 44,514 (243)

Airborne and terrestrial laser scanning

open access: yesInternational Journal of Digital Earth, 2011
Airborne and terrestrial laser scanning, edited by G. Vosselman and H-G. Maas, Boca Raton, London, New York, CRC Press, Taylor and Francis Group, 2010, xxiv + 311 pp., ISBN 978-1904445-87-6 This is...
openaire   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Advances in Forest Inventory Using Airborne Laser Scanning

open access: yesRemote Sensing, 2012
We present two improvements for laser-based forest inventory. The first improvement is based on using last pulse data for tree detection. When trees overlap, the surface model between the trees corresponding to the first pulse stays high, whereas the ...
Hannu Hyyppä   +10 more
doaj   +1 more source

AIRBORNE TO UAS LIDAR: AN ANALYSIS OF UAS LIDAR GROUND CONTROL TARGETS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Creating accurate models of the Earth’s surface is an essential step when analysing geomorphological changes through time. Alongside photogrammetry, airborne lidar is an established method for measuring and modelling the Earth’s surface.
L. Davidson   +5 more
doaj   +1 more source

Estimating site index from short term TanDEM-X canopy height models [PDF]

open access: yes, 2016
The tree height growth from three vegetation seasons was fitted to height growth curves in order to estimate the site index, which is a variable related to forest site productivity.
Fransson, Johan, Persson, Henrik
core   +1 more source

Oil‐Coated Nanoplastics Induce Rapid Membrane Disruption and Severe Intestinal Injury

open access: yesAdvanced Science, EarlyView.
ABSTRACT Plastic food containers used in food delivery may pose underrecognized health risks by releasing micro‐ and nanoplastics (MNPs), especially when in contact with oil‐rich foods. Here, we show that cooking oil dramatically increased MNP release from polypropylene (PP) and polyethylene (PE)‐coated containers within 3 min of microwave heating ...
Ruwen Xie   +17 more
wiley   +1 more source

Deriving Stand Structural Complexity from Airborne Laser Scanning Data—What Does It Tell Us about a Forest?

open access: yesRemote Sensing, 2020
The three-dimensional forest structure is an important driver of several ecosystem functions and services. Recent advancements in laser scanning technologies have set the path to measuring structural complexity directly from 3D point clouds.
Dominik Seidel   +5 more
doaj   +1 more source

Direct and automatic measurements of stem curve and volume using a high-resolution airborne laser scanning system

open access: yesScience of Remote Sensing, 2022
Today, high-quality reference tree measurements, including the position, diameter, height and volume, are cumbersome and slow to carry out, but highly needed for forest inventories based on airborne laser scanning. Mobile laser scanning technologies hold
Eric Hyyppä   +6 more
doaj   +1 more source

The Impact of Sea State Condition on Airborne Lidar Bathymetry Measurements [PDF]

open access: yes, 2012
Due to a large number of available Airborne Lidar Bathymetry (ALB) survey datasets and scheduled future surveys, there is a growing need from coastal mapping communities to estimate the accuracy of ALB as a function of the survey system and environmental
Axelsson, Andreas   +2 more
core   +2 more sources

Dorsal Raphe VIP Neurons Are Critical for Survival‐Oriented Vigilance

open access: yesAdvanced Science, EarlyView.
DRNVIP neurons in mice and primates are strategically positioned to influence the central extended amygdala via feedback loops. They regulate the excitability of PKC‐δ neurons in the ovBNST and CeA through glutamate release. Their ablation heightens activity in these regions, disrupts active‐phase sleep architecture, enhances risk assessment behaviors ...
Adriane Guillaumin   +15 more
wiley   +1 more source

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