A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Filters
Spectral High Resolution Feature Selection for Retrieval of Combustion Temperature Profiles
[chapter]
2006
Lecture Notes in Computer Science
Preserved Fulltext
In this paper, the capability to retrieve the temperature prof le in a combustion environment using neural networks jointly with this spectral high resolution feature selection method is studied. ...
The use of high spectral resolution measurements to obtain a retrieval of certain physical properties related with the radiative transfer of energy leads a priori to a better accuracy. ...
The use of high spectral feature selection jointly with neural networks can contribute in an efficien way to retrieve the temperature profile with some advantages over classical physical-statistical techniques ...
doi:10.1007/11875581_91
fatcat:zavulggcjjdyvnmidalbagshva
Multilayer perceptron as inverse model in a ground-based remote sensing temperature retrieval problem
2008
Engineering applications of artificial intelligence
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
In this paper, a combustion temperature retrieval approximation for high-resolution infrared ground-based measurements has been developed based on a multilayer perceptron (MLP) technique. ...
The introduction of a selection subset of features is mandatory due to the problems related to the high dimensionality data and the worse performance of MLPs with this high input dimensionality. ...
High resolution spectral feature selection: PCA It is known that high resolution leads a priori to a better accuracy in the retrieval problem. ...
doi:10.1016/j.engappai.2007.03.005
fatcat:msvajj7dobghfmzq3txq4kcr3q
Machine learning applied to retrieval of temperature and concentration distributions from infrared emission measurements
2019
Applied Energy
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
By measuring spectral intensity of the CO 2 4.3 µm band, temperature profiles were retrieved in a number of ways [19, 20] . ...
Two types of temperature profiles were tested for different gas path lengths and different CO 2 spectral bands. ...
Acknowledgment The third and forth authors gratefully acknowledge the support from the European Metrology Programme for Innovation and Research (EMPIR) and the European Union's Horizon 2020 Research and ...
doi:10.1016/j.apenergy.2019.113448
fatcat:772lipim5redvjhvrdniwyrfqe
Resolving nonuniform temperature distributions with single-beam absorption spectroscopy. Part II: Implementation from broadband spectra
[article]
2020
arXiv
pre-print
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Other Versions
In Part I, we found that in the absence of noise, only the first ~14 well-selected absorption features improve the temperature resolution. ...
In this work, we demonstrate a new approach to use broadband, high-resolution absorption spectra to determine line-of-sight temperature nonuniformity. ...
Acknowledgments: This work was funded by the National Science Foundation under grant CBET 1454496 and the Air Force Office of Scientific Research under grant FA9550-17-1-0224. ...
arXiv:2011.06638v1
fatcat:dklffiejgrbl3e26kc7y5hxfxu
Time-resolved continuous-filtering Vernier spectroscopy of H2O and OH radical in a flame
2019
Optics Express
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Spectra of H 2 O and OH radical around 1570 nm are continuously recorded with 6.6 GHz spectral resolution, 4.0 × 10 −7 cm −1 absorption sensitivity, and 25 ms time resolution, while the fuel-air equivalence ...
The robust CF-VS spectrometer opens up for quantitative monitoring of multiple products of time-varying combustion processes with relatively simple data acquisition procedures. ...
Johansson and Adam Edlund for initial work on the CF-VS setup and Lucile Rutkowski for useful discussions. ...
doi:10.1364/oe.27.029521
fatcat:umuocjlhlfeaxllcqxnspf66fq
Flash Smelting Copper Concentrates Spectral Emission Measurements
2018
Sensors
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Temperature and spectral emissivity features are estimated for each case by using the two wavelength method and radiometric models. ...
In this paper, we report on spectral features emitted by a reaction shaft occurring in flash smelting of copper concentrates containing sulfide copper minerals such as chalcopyrite (CuFeS 2 ), bornite ...
The results show that the measured and retrieved information presents spectral features that could be useful for improving copper concentrates combustion performance. ...
doi:10.3390/s18072009
pmid:29932156
pmcid:PMC6069026
fatcat:v5gciy7aivg3fe3vvbawd3ak2q
First space-based observations of formic acid (HCOOH): Atmospheric Chemistry Experiment austral spring 2004 and 2005 Southern Hemisphere tropical-mid-latitude upper tropospheric measurements
2006
Geophysical Research Letters
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
1] The first space-based measurements of upper tropospheric (110 -300 hPa) formic acid (HCOOH) are reported from 0.02 cm À1 resolution Atmospheric Chemistry Experiment (ACE) Fourier transform spectrometer ...
mixing ratio of 2.03 ± 0.28 ppbv, at 9.5 km altitude was measured during 2005. ...
of 6 funding is provided by the Canadian Space Agency and the Natural Sciences and Engineering Research (NSERC) of Canada. ...
doi:10.1029/2006gl027128
fatcat:uuv6fktlafcudczczavfjjj27y
Frequency Comb Spectroscopy Of Co₂, Ch₄, H₂O, And Isotopes Over A 2 Km Outdoor Path: Concentration Retrievals Using Different Absorption Models
2014
Zenodo
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
The models tested include the HITRAN 2008 and 2012 spectral databases with Voigt line-shape profiles as well as a recent model for CO2 that includes the effects of line mixing and speed dependence. ...
A dual frequency comb spectrometer is used to make high signal-to-noise measurements of atmospheric absorption from 5990 to 6260 cm−1 with 0.0033 cm−1 point spacing and ∼4·10−8 cm−1 resolution over a 2 ...
-High temperature laboratory H 2 O measurements for combustion underway -What is useful to the HITRAN community? ...
doi:10.5281/zenodo.11180
fatcat:v27m76g5pfgx5ful5wlmlyad6y
A new optimal estimation retrieval scheme for carbon monoxide using IASI spectral radiances – Part 1: Sensitivity analysis, error budget and simulations
2010
Atmospheric Measurement Techniques Discussions
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
It makes use of explicit digital elevation and emissivity information, and incorporates a correction for solar surface reflection in the daytime with a high resolution solar spectrum. ...
IASI covers the spectral range between 645 to 2760 cm −1 , with a spectral sampling of 0.25 cm −1 and a nominal apodised spectral resolution of 0.5 cm −1 (Blumstein et al., 2004). ...
by the IASI instrument, which combines a high signal to noise ratio and a high spectral resolution, enable the retrieval of a tropospheric 5 CO product. ...
doi:10.5194/amtd-3-3747-2010
fatcat:dvalw6molng27a3kyxyzhimhzi
The detection of enhanced carbon monoxide abundances in remotely sensed infrared spectra of a forest fire smoke plume
1996
Geophysical Research Letters
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2010; you can also visit the original URL.
The file type is application/pdf.
of August 25, 1995. ...
From the spatial overlap of the spectra, the estimated width of the CO rich portion of the plume is ≤ 2.8 km vs. a plume width of ∼ 5 km in GOES-8 satellite visible images. ...
WWM thanks Rae Force, Esquire, for 'doing it all!' WWM and LLS were supported by NASA contract #NAS 5-31378. ...
doi:10.1029/96gl03007
fatcat:5qiir4da45gzpnkmbpcykyidti
Mapping of temperature and CO2 column density in a standard flame by multispectral imaging
2021
Thermosense: Thermal Infrared Applications XLIII
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
transmittance profile of the selected interference filters. ...
High-resolution emission spectra are calculated, using the HITEMP2010 database, as a function of flame temperature (T) and CO 2 column density (Q CO2 , measured in ppm·m), and integrated over the spectral ...
Thanks also to Gavin Sutton and Alberto Sposito for their support in setting up the NPL standard flame at the LIR-Infrared Laboratory at Universidad Carlos III de Madrid. ...
doi:10.1117/12.2585805
fatcat:gpkg4cgjczbw3pdpmmrg6zezhe
Multiyear infrared solar spectroscopic measurements of HCN, CO, C2H6, and C2H2tropospheric columns above Lauder, New Zealand (45°S latitude)
2002
Journal of Geophysical Research
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Near-simultaneous, 0.0035 or 0.007 cm −1 resolution infrared solar absorption spectra of tropospheric HCN, C 2 H 2 , CO, and C 2 H 6 have been recorded from the Network for the Detection of Stratospheric ...
Retrievals of all four molecules were obtained with an algorithm based on the semiempirical application of the Rodgers optimal estimation technique. ...
They are a function of the retrieval intervals selected, the spectral resolution of the observations, the assumed signal-to-noise of the measurements, and the selections of the retrieval parameters, such ...
doi:10.1029/2001jd001150
fatcat:pvriqjdf55a2nggoz2uew65mkm
Wildfire-Induced CO Plume Observations from NAST-I During the FIREX-AQ Field Campaign
2021
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
A methodology for retrieving tropospheric CO from such remotely sensed spectral data has been developed for the National Airborne Sounder Testbed-Interferometer (NAST-I) and is applied herein. ...
Enhanced CO emissions along with plume evolution and transport from the fire ground site locations were captured by moderate vertical and high horizontal resolution observations obtained from the NAST-I ...
ACKNOWLEDGMENT The authors would like to thank the FIREX-AQ management team, aircraft pilots and crew of NASA ER-2 and DC-8. They would also like to thank L. Rochette of LR Tech, Inc., for his ded- ...
doi:10.1109/jstars.2021.3059855
pmid:33868549
pmcid:PMC8050943
fatcat:nsn22wm5zzb6hlo3vjje6ukcdm
CO2 Retrieval Using Thermal Infrared Radiation Observation by Interferometric Monitor for Greenhouse Gases (IMG) Onboard Advanced Earth Observing Satellite (ADEOS)
2016
Journal of the Meteorological Society of Japan
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
A method of selecting effective channels for CO 2 retrieval was used to remove channels with a high temperature dependency and to reduce errors in estimating the water vapor, ozone, and surface temperature ...
For the retrieval analysis, ERA-40 re-analysis meteorological data were used as temperature field data. ...
and Research and Development for Applying Advanced Computational Science and Technology program of Japan Science and Technology Agency (ACT-JST). ...
doi:10.2151/jmsj.2016-027
fatcat:h2qgppzuprhgxkvltoh3xrwgdy
ULIRS, an optimal estimation retrieval scheme for carbon monoxide using IASI spectral radiances: sensitivity analysis, error budget and simulations
2011
Atmospheric Measurement Techniques
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2016; you can also visit the original URL.
The file type is application/pdf.
It makes use of explicit digital elevation and emissivity information, and incorporates a correction for solar surface reflection in the daytime with a high resolution solar spectrum. ...
The ULIRS enables the retrieval of between 1 and 2 pieces of information about the tropospheric CO vertical profiles, with peaks in the sensitivity at approximately 5 and 12 km. ...
The authors would like to thank Peter Bernath for the use of ACE solar spectra, Nigel Richards and Martyn Chipperfield for TOMCAT data, NEODC for access to ECMWF data, the NERC for funding S. M. ...
doi:10.5194/amt-4-269-2011
fatcat:nm3angnrzfdm5k526zeyby6ed4
« Previous
Showing results 1 — 15 out of 2,542 results