106 Hits in 13.5 sec

Spectral Emissivity (SE) Measurement Uncertainties across 2.5–14 μm Derived from a Round-Robin Study Made Across International Laboratories

Mary F. Langsdale, Martin Wooster, Jeremy J. Harrison, Michael Koehl, Christoph Hecker, Simon J. Hook, Elsa Abbott, William R. Johnson, Alessandro Maturilli, Laurent Poutier, Ian C. Lau, Franz Brucker
2020 Remote Sensing  
SE measurements often come from spectral libraries based upon laboratory spectroscopic measurements, with uncertainties typically derived from repeated measurements.  ...  To go further, we organised a "round-robin" inter-comparison exercise involving SE measurements of three samples collected at seven different international laboratories.  ...  features across the 2.5-14 µm spectral range.  ... 
doi:10.3390/rs13010102 fatcat:4npiunqttfhsrikybtgsqonzai

Do ICP-MS based methods fulfill the EU monitoring requirements for the determination of elements in our environment?

Kristof Tirez, Chris Vanhoof, Jan Bronders, Piet Seuntjens, Nico Bleux, Patrick Berghmans, Nicole De Brucker, Frank Vanhaecke
2015 Environmental Science: Processes & Impacts  
instrumental power of detection attainable by ICP-MS (see further, results of round robin test 406 performed in 2014). 415 context, a round robin test was recently (2014) organised amongst 14 accredited  ...  ., Zn in surface water, the median LoQ of 15 µg L -1 was derived 426 based on the measurement of a spiked concentration of 10 µg L -1 .  ... 
doi:10.1039/c5em00289c pmid:26487336 fatcat:rlmv2eotfnbvnehib75pz6duo4

2014 atomic spectrometry update – a review of advances in environmental analysis

Owen T. Butler, Warren R. L. Cairns, Jennifer M. Cook, Christine M. Davidson
2015 Journal of Analytical Atomic Spectrometry  
Several RMs, including a new synthetic in-house standard containing As, Sb, Se and Te, bracketed the unknown samples, and 33 S derived from EPMA measurements was used as the internal standard.  ...  Crater widths ranged from ca. 17 µm ( 13 C) to ca. 36 µm ( 11 B), and their depths from ≤3 µm ( 18 O) to >20 µm ( 11 B).  ...  NTIMS Total evaporation method on a Re filament, with a sample size of <1 ng B, with normalisation to NIST SRM 951a (boric acid).  ... 
doi:10.1039/c4ja90062f fatcat:j5vszclcdfcqvkpen3abvd3fxm

Planetary Nebulae: Sources of Enlightenment [article]

Karen B. Kwitter, R. B. C. Henry
2021 arXiv   pre-print
and as astrophysical laboratories.  ...  In this review/tutorial we explore planetary nebulae as a stage in the evolution of low-to-intermediate-mass stars, as major contributors to the mass and chemical enrichment of the interstellar medium,  ...  Special thanks go to those individuals who also read and commented on specific sections: Bruce Balick, Marcelo Miller Bertolami, Howard Bond, Robin Ciardullo, Anibal  ... 
arXiv:2110.13993v1 fatcat:s2u7lys77vhwregyppr5aor7mm

A bacterial bioreporter panel to assay the cytotoxicity of atmospheric particulate matter

Nivi Kessler, James J. Schauer, Sharon Yagur-Kroll, Sahar Melamed, Ofir Tirosh, Shimshon Belkin, Yigal Erel
2012 Atmospheric Environment  
Size-resolved aerosol measurements including collection of submicron (Dp < 1.0 μm), fine (Dp < 2.5 μm), and coarse (2.5 < Dp < 10 μm) particles were conducted for the determination of their mass extinction  ...  The optical measurements of a light extinction coefficient, a light scattering coefficient, and a light absorption coefficient were made from a transmissometer, a nephelometer, and an aethalometer.  ...  the tropical coastal Kalpakkam region in southern India during the Round Robin Exercise (RRE) field experiment period (14 -24 September 2010).  ... 
doi:10.1016/j.atmosenv.2012.09.048 fatcat:io4k5yahovcgvgzpnrxd6mynym

STROBE-X: X-ray Timing and Spectroscopy on Dynamical Timescales from Microseconds to Years [article]

Paul S. Ray, Zaven Arzoumanian, David Ballantyne, Enrico Bozzo, Soren Brandt, Laura Brenneman, Deepto Chakrabarty, Marc Christophersen, Alessandra DeRosa, Marco Feroci, Keith Gendreau, Adam Goldstein (+129 others)
2019 arXiv   pre-print
Optimized for study of the most extreme conditions found in the Universe, its key science objectives include: (1) Robustly measuring mass and spin and mapping inner accretion flows across the black hole  ...  pulsars and accreting neutron stars, and hence measuring the equation of state for ultradense matter over a much wider range of densities than explored by NICER. (3) Identifying and studying X-ray counterparts  ...  Acknowledgments The STROBE-X mission concept study is funded by the NASA Astrophysics Probes program We gratefully acknowledge the superb engineering teams at the NASA/GSFC Instrument Design Lab and Mission  ... 
arXiv:1903.03035v2 fatcat:hwoq373d4fb7ld3fsnwn4xt3sy

Atomic spectrometry update. Environmental analysis

Steve J. Hill, Toyin A. Arowolo, Owen T. Butler, Simon R. N. Chenery, Jennifer M. Cook, Malcolm S. Cresser, Douglas L. Miles
2002 Journal of Analytical Atomic Spectrometry  
In the analysis of air, there is ongoing development of instrumentation for continuous emission monitoring and as a means of interrogating the composition of individual airborne particulates.  ...  Multi-collector ICP-MS is increasingly being used in a number of geological facilities to perform high precision isotope ratio measurements.  ...  Godon et al.[25/3605] have conducted a round-robin determination of chlorine isotope ratios of 24 seawater samples from worldwide locations.  ... 
doi:10.1039/b200833p fatcat:h5cpmd4menczhdiwrzlawamsam

Sixth International Workshop on Specialty Optical Fibers and Their Applications (WSOF 2019): Conference Digest

Liang Dong, John Ballato
2019 Sixth International Workshop on Specialty Optical Fibers and Their Applications (WSOF 2019)  
ACKNOWLEDGMENTS IV Conclusion We have shown that using tomography, it is possible to image a relatively complex structure in a transparent polymer coating with a very good precision.  ...  Acknowledgments We gratefully acknowledge funding from the U.K.  ...  When the pump wavelength was 10 and 12 μm, the SC was extending from 2 to 14 μm and from 4 to 14 μm at -40 dB, respectively.  ... 
doi:10.1117/12.2557110 fatcat:jtbftehuzrbi5lupddv547q24m

GGR Biennial Critical Review: Analytical Developments Since 2014

Kathryn L. Linge, L. Paul Bédard, Roxana Bugoi, Jacinta Enzweiler, Klaus Peter Jochum, Rüdiger Kilian, Jingao Liu, Johanna Marin-Carbonne, Silke Merchel, Frans Munnik, Luiz F.G. Morales, Claire Rollion-Bard (+3 others)
2017 Geostandards and Geoanalytical Research  
The optimised procedure involves adding NH 4 F and sample powder (< 74 µm) into a screw top PFA vial at a ratio of 6:1 (NH 4 F:sample).  ...  They note that it is important that sample aliquots are < 100 mg of ultra-fine fractions (< 30 µm), which raises the question of how representative a small sample can be, knowing that most reference materials  ...  An example is the study of Košler et al. (2013) , which compared U-Pb age data from eight LA-ICP-MS and two SIMS laboratories on 1 inch round epoxy mounts of selected mixtures of grains from six zircon  ... 
doi:10.1111/ggr.12200 fatcat:uzu3f3wasjbkvpgiqmuqbktwey

Multi sensor validation and error characteristics of Arctic satellite sea surface temperature observations

Jacob L. Høyer, Ioanna Karagali, Gorm Dybkjær, Rasmus Tonboe
2012 Remote Sensing of Environment  
the results of a preliminary investigation using MODIS measurements.  ...  Acknowledgement This study was supported by the project "Research for the Meteorological Observation Technology and Its Application" at National Institute of Meteorological Research, KMA.  ...  In the 11 and 12 µm channels we define the surface emissivity as a function of viewing zenith angle using laboratory measurements of fine dendritic snow [Hori et al., 2006; Cheng et al., 2010] .  ... 
doi:10.1016/j.rse.2012.01.013 fatcat:e64zv2bspzh7pkiaqqx76humiu

Abstracts of Papers Presented at the 2007 Pittsburgh Conference

Peter B. Stockwell
2007 Journal of automated methods & management in chemistry (Print)  
For humanitarian deminers, training and many hours of use may eventually enable fitting the human to the machine, assuming a mistake is not first made.  ...  The Army Research Laboratory in collaboration with Carnegie Mellon University, the University of Missouri-Rolla, and Lincoln University has conducted various research studies pertaining to hand-held mine  ...  ACKNOWLEDGMENTS The authors acknowledge support from NIH, NSF, Office of Navy Research, and Prosolia Inc., Indianapolis, Id.  ... 
doi:10.1155/2007/71943 pmid:18528514 pmcid:PMC2391256 fatcat:x3ojznxiufafpcjumeymzd5ise

Status and perspectives of neutrino physics

M. Sajjad Athar, Steven W. Barwick, Thomas Brunner, Jun Cao, Mikhail Danilov, Kunio Inoue, Takaaki Kajita, Marek Kowalski, Manfred Lindner, Kenneth R. Long, Nathalie Palanque-Delabrouille, Werner Rodejohann (+7 others)
2022 Progress in particle and nuclear physics 124  
Summer Blot, Sara Bolognesi, Christian Buck, Giorgio Gratta, Jinhao Huang, Mary Hall Reno, Pedro Ochoa-Ricoux, Liang Zhan, Jinnan Zhang for clarifying comments and contributions, and are grateful to the international  ...  NEOS' [541] spectral shape divided by Daya Bay's showed an oscillation pattern indicating possibly a sterile neutrino at 2.5σ but further reduction of systematic uncertainty is needed to claim it.  ...  B f N B 3 (Q 2 ) u(p), ū(p )A µ u(p) = ū(p ) γ µ γ 5 g N B 1 (Q 2 ) + iσ µν q ν M + M B γ 5 g N B 2 (Q 2 ) + 2 q µ M + M B g N B 3 (Q 2 )γ 5 u(p), (23) where B represents a nucleon N or a hyperon Y ,  ... 
doi:10.3204/pubdb-2022-01697 fatcat:5npfuexrqbcmxddjzjhgnfwqfy

Novel rates of OH induced sulfur oxidation. Implications to the plume chemistry of jet aircraft

Holger Somnitz, Gö tz Georg Gleitsmann, Reinhard Zellner
2005 Meteorologische Zeitschrift  
The fraction ε of the fuel sulphur S(IV) converted into S(VI) has been indirectly deduced from comparisons between model results and measurements. ε has been found to be in the range 2.5 % to 6 %, depending  ...  ABSTRACT: In the present study, we investigate the chemistry of expanding aircraft exhaust plumes for a range of conditions (latitude, altitude, season, plume expansion rate, time of day of emissions,  ...  "Particles and cirrus clouds" (PAZI), and M.  ... 
doi:10.1127/0941-2948/2005/0060 fatcat:6p2j4dyamfc5tm7ehe2tn66y2u

Global Climate

Robert J. H. Dunn, F. Aldred, Nadine Gobron, John B. Miller, Kate M. Willett, M. Ades, Robert Adler, Richard, P. Allan, Rob Allan, J. Anderson, Anthony Argüez, C. Arosio (+163 others)
2021 Bulletin of The American Meteorological Society - (BAMS)  
However, studies including the radiocarbon ( 14 C) or stable carbon ( 13 C) isotopes of CH 4 suggest a much larger fraction of FF emissions (~30%; Lassey et al. 2007; Schwietzke et al. 2016) .  ...  Starting in February 2020, data from the Total Solar and Spectral Irradiance Sensor-1 (TSIS-1, Coddington, 2017 ) mission on board the International Space Station is normalized to SORCE Version 15.  ... 
doi:10.1175/bams-d-21-0098.1 fatcat:pkoben2dorcmngmr2wwk6wtmfa

Direct Photon Shine: Direct Photon and π0 Production in √sNN= 200 GeV Au + Au Collisions

Justin E. Frantz
2005 Zenodo  
The new data has extended the previous PHENIX π0 measurement by 4 GeV/c in its pT range, thus matching the γ-direct measurement with a pT range of 1-14 GeV/c which make them the highest pT measurements  ...  With the inclusion of a new Run2 trigger data sample, the PHENIX Collaboration has measured the first positive direct photon (γdirect) signal in Au+Au collisions at √sNN= 200 GeV and midrapidity (|y|≤0.35  ...  They are defined by the equations: F µν = ∂ µ A ν − ∂ ν A µ (2.2) F a µν = ∂ µ A a ν − ∂ ν A a µ − f abc A b A c (2.3) In the case of EM field, A µ is a four vector made up of the normal EM scalar and  ... 
doi:10.5281/zenodo.4178425 fatcat:iiwcnhlgfbh3rpjnomvtb2vhge
« Previous Showing results 1 — 15 out of 106 results