Open path
Completely automated open-path FT-IR spectrometry
... Clearly OP/FT-IR spectroscopy is a powerful technique for atmospheric monitoring. It is our opinion that it has not been widely used for several reasons. The first is the software that was installed on commercial ...
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Open-path, quantum cascade-laser-based sensor for high-resolution atmospheric ammonia measurements
... ing a QC laser at 9.06 µm. Multi-harmonic wavelength mod- ulation spectroscopy is used to isolate overlapping absorption features, and an in-line ethylene reference cell is used for on- line calibration and normalization ...
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Intercomparison of open-path trace gas measurements with two dual-frequency-comb spectrometers
... round-trip open path that extended from the top of a building at the National Institute of Standards and Technol- ogy (NIST) Boulder campus to a pair of retroreflectors lo- cated on a nearby ...
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Application of open-path Fourier transform infrared spectroscopy (OP-FTIR) to measure greenhouse gas concentrations from agricultural fields
... monostatic open-path FTIR air mon- itoring system (model 2501-C, MIDAC Corporation, Irvine, ...tical path and returned to the telescope after reflection from a retroreflector to collect spectra that ...
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Rapid, optical measurement of the atmospheric pressure on a fast research aircraft using open-path TDLAS
... In principle, on an aircraft and in particular on a re- search aircraft such as the HALO (High Altitude and LOng Range) research aircraft (Krautstrunk and Giez, 2012), a good static ambient pressure calculation based on ...
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Long open-path measurements of greenhouse gases in air using near-infrared Fourier transform spectroscopy
... kilometre. Open- path measurement techniques provide path average concen- trations and spatial averaging which, if sufficiently accu- rate, may be better suited to assessment and interpretation with ...
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Application of the Shifting Method as a Technique to Correct for the Background in Quantitative Analysis by Open Path FTIR
... In open-path Fourier Transform Infrared spectroscopy, the generation of a suitable background single-beam spectrum is of major ...and open path data with multiple com- pounds, overlapping ...
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Areal-averaged trace gas emission rates from long-range open-path measurements in stable boundary layer conditions
... using open-path gas concentration ...by open-path gas measurements and flux-gradient approaches is needed to confirm applicability, ideally with spatially averaged turbulence measures match- ...
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Increasing the quantitative credibility of open-path FT-IR spectroscopic data with focus on several properties of the background spectrum
... The choice of the type of background spectrum affects the credibility of open-path Fourier transform infrared spectroscopy (OP/FT-IR) data, and consequently, the quality of data analysis. We systematically ...
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Comparison of slant open-path flux gradient and static closed chamber techniques to measure soil N2O emissions
... ferent measurement footprints of the two methods, it is not surprising the two techniques give different results. It is dif- ficult to conclude that one technique or the other is biased based on this experiment alone. ...
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Bootstrap inversion technique for atmospheric trace gas source detection and quantification using long open-path laser measurements
... Many open-path absorption methods for determining species concentration have been demonstrated (Akagi et ...outdoor path showed methane concentration agreement to ...trip) path lengths (Coburn ...
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Advances in Data Processing for Open-path Fourier Transform Infrared Spectrometry of Greenhouse Gases.
... The automated quantification of three greenhouse gases, ammonia, methane, and nitrous oxide, in the vicinity of a large dairy farm by open-path Fourier transform infrared (OP/FT-IR) spectrometry at ...
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Comparative measurements of water vapor fluxes over a tall forest using open- and closed-path eddy covariance system
... Axis rotation for tilt correction was carried out with lin- ear detrended raw time series, using the revised planar fit method according to van Dijk et al. (2004). Comparison of rotated and non-rotated fluxes showed ...
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Improved Shortest Path Method to Select the Best Path from Multi-Path Web Service Composition Graph
... In this paper, we compare sequential web service composition and parallel web service composition. The result shows that the proposed method reduces time complexity. The best composition path is found by using ...
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Efficient regular path query evaluation using path indexes
... using existing RDBMS technologies, other recent work [14] describes an implementation of a B+tree-based k-path index “from scratch”, focusing on issues such as index size, com- pression and performance, and ...
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A Model for the Rehabilitation of Witness Perspective-The Path of Knowledge:The Knowledge of Path
... harmonies of a potential weaving machine able to have created such disparate measures that are simultaneously functional in both minute and infinitely big stitches becomes blinding to the eye, comparative points cannot ...
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Open Shortest Path First IGP. Individual M. Nanduri Microsoft Corporation L. Jalil Verizon January 6, 2016
... maintenance. The provider should guarantee that the PE is taken out for maintenance only after the service is successfully diverted on an alternate path. There can be large number of customers attached to a PE ...
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Path Tracking Analysis
... Every path tracking robot must have their unique algorithm so that they can able to perform their purpose which is follow the path ...of path tracking algorithm available in the world which is ...
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A System on Visualization of Program Executive Path and Extraction of Path Sets
... minimal path number usually does not mean the best test ef- ...small path set. Then, in the system, we just try to find first satisfying path set as ...
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Correlation and path coefficient analysis of yield and agronomic characters among open pollinated maize varieties and their F1 hybrids in a diallel cross
... Plant height was measured from soil level to the node of the flag leaf and to the highest ear-bearing node respectively at harvest stage. Days to 50% tasselling, pollen shed and silking were calculated as the number of ...
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