Results 21 to 30 of about 428,890 (310)

Examining the Spectral Separability of Prosopis glandulosa from Co-Existent Species Using Field Spectral Measurement and Guided Regularized Random Forest

open access: yesRemote Sensing, 2016
The invasive taxa of Prosopis is rated the world’s top 100 unwanted species, and a lack of spatial data about the invasion dynamics has made the current control and monitoring methods unsuccessful.
Nyasha Mureriwa   +3 more
doaj   +1 more source

A Spectral Fitting Algorithm to Retrieve the Fluorescence Spectrum from Canopy Radiance

open access: yesRemote Sensing, 2019
Retrieval of Sun-Induced Chlorophyll Fluorescence (F) spectrum is one of the challenging perspectives for further advancing F studies towards a better characterization of vegetation structure and functioning.
Sergio Cogliati   +10 more
doaj   +1 more source

Integral-Field Spectroscopy of SLACS Lenses [PDF]

open access: yesAIP Conference Proceedings, 2009
The combination of two-dimensional kinematics and gravitational lens modelling permits detailed reconstruction of the phase-space structure of early-type galaxies and sets constraints on the dark-matter distribution in their inner regions. We describe a project which combines integral-field spectroscopy from an ESO Large Programme using VIMOS on the ...
Oliver Czoske   +9 more
openaire   +3 more sources

High-Precision Propagation-Loss Measurement of Single-Mode Optical Waveguides on Lithium Niobate on Insulator

open access: yesMicromachines, 2019
We demonstrate the fabrication of single-mode optical waveguides on lithium niobate on an insulator (LNOI) by optical patterning combined with chemomechanical polishing.
Jintian Lin   +8 more
doaj   +1 more source

Mapping Alteration Mineralogy in Eastern Tsogttsetsii, Mongolia, Based on the WorldView-3 and Field Shortwave-Infrared Spectroscopy Analyses

open access: yesRemote Sensing, 2021
This study produces alteration mineral maps based on WorldView-3 (WV-3) data and field shortwave-infrared (SWIR) spectroscopy. It is supported by conventional analytical methods such as X-ray diffraction, X-ray fluorescence, and electron probe X-ray ...
Young-Sun Son   +6 more
doaj   +1 more source

Towards a Standard Plant Species Spectral Library Protocol for Vegetation Mapping: A Case Study in the Shrubland of Doñana National Park

open access: yesISPRS International Journal of Geo-Information, 2015
One of the main applications of field spectroscopy is the generation of spectral libraries of Earth’s surfaces or materials to support mapping activities using imaging spectroscopy.
Marcos Jiménez, Ricardo Díaz-Delgado
doaj   +1 more source

Towards an Interoperable Field Spectroscopy Metadata Standard with Extended Support for Marine Specific Applications

open access: yesRemote Sensing, 2015
This paper presents an approach to developing robust metadata standards for specific applications that serves to ensure a high level of reliability and interoperability for a spectroscopy dataset.
Barbara A. Rasaiah   +4 more
doaj   +1 more source

Highly bioresistant, hydrophilic and rigidly linked trityl-nitroxide biradicals for cellular high-field dynamic nuclear polarization

open access: yes, 2022
Cellular dynamic nuclear polarization (DNP) has been an effective means of overcoming the intrinsic sensitivity limitations of solid-state nuclear magnetic resonance (ssNMR) spectroscopy, thus enabling atomic-level biomolecular characterization in native
Yang, Yin   +12 more
core   +1 more source

Integrated Use of Satellite Remote Sensing, Artificial Neural Networks, Field Spectroscopy, and GIS in Estimating Crucial Soil Parameters in Terms of Soil Erosion

open access: yesRemote Sensing, 2019
Soil erosion is one of the main causes of soil degradation among others (salinization, compaction, reduction of organic matter, and non-point source pollution) and is a serious threat in the Mediterranean region. A number of soil properties, such as soil
Dimitrios D. Alexakis   +3 more
doaj   +1 more source

Noninvasive Solution for Electrochemical Impedance Spectroscopy on Metallic Works of Art [PDF]

open access: yes, 2012
Metallic works of art of cultural relevance are continuously subjected to corrosion as the environment becomes increasingly polluted. A fast and simple method to in situ assess the conservation conditions is therefore required.
Parvis, Marco   +5 more
core   +1 more source

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