Vegard-Kaplan bands and other systems of neutral nitrogen.

by George Robinson Taylor

Written in English
Published: Downloads: 756
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Thesis (M. Sc.)--The Queen"s University of Belfast, 1954.

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Vegard-Kaplan bands and other systems of neutral nitrogen. by George Robinson Taylor Download PDF EPUB FB2

2 triplet band emissions on Titan, including the recently observed N 2 VK bands. The model includes interstate cascading and quenching, and uses the Analytical Yield Spectra approach for the cal-culation of electron impact excitation of triplet bands, and is similar to the model used Vegard-Kaplan bands and other systems of neutral nitrogen.

book studying the N 2 triplet emissions on Mars (Jain and Bhardwaj, ). About Cookies, including instructions on how to turn off cookies if you wish to do so.

By continuing to browse this site you agree to us using cookies as described in. Recently the Cassini Ultraviolet Imaging Spectrograph (UVIS) has revealed the presence of N 2 Vegard–Kaplan (VK) band A 3 Σ u +-X 1 Σ g + emissions in Titan’s dayglow limb observation.

We present model calculations for the production of various N 2 triplet states (viz., A 3 Σ u +, B 3 Π g, C 3 Π u, E 3 Σ u, W 3 Δ u, and B 3 Σ u) in the upper atmosphere of by: Measurements of relative band intensities for the N 2 Vegard–Kaplan bands with υ′ = 0 are used to find a curve that represents the smooth variation of the electronic transition moment with internuclear separation.

The Vegard–Kaplan bands were observed in the discharge afterglow without appreciable contamination from other N 2 systems. Although the intensity measurements are more Cited by: Researches on the excitation conditions of various band systems of the neutral and ionized molecule of nitrogen [ReneÌ Bernard] on *FREE* shipping on qualifying : ReneÌ Bernard.

First detailed model of N2 Vegard‐Kaplan Band dayglow emissions on Mars N2 density in Mars TGC model should be reduced by a factor of 3 N2/CO2 ratio is Cited by: Recently the Cassini Ultraviolet Imaging Spectrograph has revealed the presence of N2 Vegard-Kaplan band emissions in Titan's dayglow limb observation.

compounds and inorganic ring systems. He is the author of two books: “A Guide to Chalcogen–Nitrogen Chemistry” and (with I. Manners) “Inorganic Rings and Polymers of the p-Block Elements: From Fundamentals to Applications”.

Risto S. Laitinen Risto S. Laitinen received his Ph. (eng) in from Helsinki University of Technology. [2] The (0, 6), (0, 5), and possibly the (0,7) bands of the N 2 Vegard‐Kaplan (VK) system were detected for the first time from the Martian atmosphere by the SPICAM (Spectroscopy for Investigations of the Characteristics of the Atmosphere of Mars) UV spectrograph on board the Mars Express (MEX) spacecraft [Leblanc et al.,].

The solar activity at the time of the measurements, which Cited by: 7. William E. Sharp, Rocket‐borne spectroscopic measurements in the ultraviolet aurora: Nitrogen Vegard‐Kaplan bands, Journal of Geophysical Research, 76, 4, (), ().

Wiley Online Library Chorng‐Lieh Lin and Frederick Kaufman, Reactions of Metastable Nitrogen Atoms, The Journal of Chemical Physics, /, 55, 8. Spectra of active nitrogen have been photographed under conditions comparable to those used for most studies of reactions of active nitrogen with other molecules.

Bands observed were identified as the first positive system of nitrogen and the β- and γ-bands of nitric oxide. No trace of Vegard–Kaplan emission was by: 3.

Request PDF | N2 Emission Bands in Spectra of Meteors. | Bands of nitrogen molecule are important features in meteor spectra. We used our best Leonid video spectrum to develop a method of.

One should not exclude, here, the possibility with peaks at, and nm was identified of partial binding of free nitrogen atoms by an 02 [33] as the Vegard-Kaplan band system originating impurity in the gas environment to form NO2 mole- from the A3 ~+ ~ Xl ~g (ground-state) transition by: Proc.

SPIEUltraviolet Technology, pg 2 (10 December ); doi: / Recently Viewed. Journal of the American Chemical Society. Amine Boranes.

VIII. The Hydroboration of Terminal Olefins, Dienes and Terminal Acetylenes with Trimethylamine t-Butylborane1. The Earth's ultraviolet airglow contains fundamental diagnostic information about the state of its upper atmosphere and ionosphere.

Our understanding of the excitation and emission processes which are responsible for the airglow has undergone dramatic evolution from the earliest days of space research through the past several years during which a wealth of new information has been published Cited by: The Vegard-Kaplan bands and other systems of neutral nitrogen by George Robinson Taylor, edition, in English The rotational structure of the Vegard-Kaplan bands of N2.

Authors: Ahmed, M Publication Date: Wed Jan 01 EST Research Org.: Univ. of Saskatchewan, Saskatoo OSTI Identifier: NSA Number. Irradiation of solid nitrogen at 4 K with far-ultraviolet light from a synchrotron caused excitation to the upper state of the Vegard–Kaplan (VK) system; the emission in that system was simultaneously recorded in wavelength region – nm.

This radiation consists of the Vegard–Kaplan bands (, the first positive and the second positive (N 2 (C 3 Π u, v) → N 2 (B 3 Π g, v')) systems of nitrogen. The most known models of vibrational kinetics of electronically excited states, N 2 (B 3 Π g, v), N 2 (C 3 Π u, v) in the auroral atmosphere are published in [7–9].Cited by:   Here we show that nitrogen fixation can also be achieved by using a non-metallic buckminsterfullerene (C 60) molecule, in the form of a water-soluble Cited by: W B), along with LBH band of N 2 and First Neg-ative band of N+ 2.

In the terrestrial atmosphere emis-sion from Vegard-Kaplan (VK) bands are weak due to e cient quenching by atomic oxygen, but CO 2 is not good at quenching VK bands (Fox and Dalgarno, ; Dreyer et al.,), so the intensity of these band should be appreciable in Martian by:   A common screen for plant antimicrobial compounds consists of separating plant extracts by paper or thin-layer chromatography (PC or TLC), exposing the chromatograms to microbial suspensions (e.g.

fungi or bacteria in broth or agar), allowing time for the microbes to grow in a humid environment, and visualizing zones with no microbial growth. The effectiveness of this screening Cited by: 9. In the case of nitrogen/air streamers, the first positive (FPS) and second positive (SPS) systems of N 2, as well as the first negative system (FNS) of must always be considered due to their well-known presence under nearly all discharge conditions, while other UV–vis–NIR systems are usually significantly weaker.

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Optical spectra were observed during the destruction of these ensembles of nanoclusters accompanied by a rapid release of chemical energy stored in the samples. Several interesting features were observed including a broad band near λ ≈ nm, which was Cited by: 4.

The detected dsrB gene DGGE bands from the cedar chips taken from Reactor were toand the DGGE bands from the aspen wood taken from Reactor were to A dsrA or dsrB -protein homology greater than 75% would be considered to indicate inclusion in the same genus, in loosely related genera, or in the same family [ 20 ].Cited by: Start studying Secrets Cst Exam book.

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