Last edited by Zulkim
Wednesday, April 22, 2020 | History

3 edition of Infrared emissions from shock heated hydrocarbons found in the catalog.

Infrared emissions from shock heated hydrocarbons

Infrared emissions from shock heated hydrocarbons

  • 95 Want to read
  • 20 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Infrared spectra.,
  • Infrared radiation.,
  • Shock heating.,
  • Hydrocarbons.

  • Edition Notes

    StatementK.M. Stephens and S.H. Bauer.
    Series[NASA contractor report] -- NASA-CR-203347., NASA contractor report -- NASA CR-203347.
    ContributionsBauer, S. H., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15543352M

    @article{osti_, title = {QUANTIFYING THE HEATING SOURCES FOR MID-INFRARED DUST EMISSIONS IN GALAXIES: THE CASE OF M 81}, author = {Lu, N. and Zhao, Y. and Bendo, G. J. and Boselli, A. and Baes, M. and De Looze, I. and Wu, H. and Lam, M. I. and Madden, S. C. and Rémy-Ruyer, A. and Boquien, M. and Wilson, C. D. and Galametz, M. and Cooray, A. and Spinoglio, L., E . A porous material is identified by the presence of channels, holes, or interstices. Ceramic materials with either ordered or disordered porosity in different size ranges have attracted the attention as sensing materials in the fields of hydrocarbon leaks detection and other important gases such as CO, CO 2, H 2, NH 3, NO x, SO x, and H 2 S. Typical classification of porous materials is given Author: Yibran A. Perera-Mercado, Griselda Castruita-de Leon, GeanettePolanco Piñerez. emission levels. In addition, by monitoring at the inlet and outlet of the oxidizer hydrocarbons can be measured and compared before and after processing, indicating efficiency. A flame ionization detector at the outlet of the oxidizer ensures that it does not exceed emission levels into the atmosphere. PROCESS HEATING UNITS CASE HISTORY PPM. • Continuous Emissions Monitoring Systems – CEMS • Continuous Opacity Monitoring Systems –COMS • Parametric Emissions Monitoring Systems – PEMS • Total Hydrocarbons – THC Before getting into the slides on monitoring, review of acronyms used in monitoring to shock and vibration Diaphragm 35 to (5 to 15) to ( to File Size: KB.

      Aleman & Gruenwald () find that H 2 infrared emission lines in PNe are produced mainly in the warm and partially ionized transition zone between the ionised H ii region and the neutral PDR. Additional heating and ionisation of the gas is required to explain the strong H 2 emission by: 7.


Share this book
You might also like
The Chinese view of their place in the world

The Chinese view of their place in the world

Winning repeat sales

Winning repeat sales

Young children learning through schemas

Young children learning through schemas

fiery angel, a sixteenth century romance.

fiery angel, a sixteenth century romance.

The Allied Bomber War 1939-45

The Allied Bomber War 1939-45

The quest for alpha

The quest for alpha

Nancy Astor

Nancy Astor

Foreign service career-candidate guidebook.

Foreign service career-candidate guidebook.

Peripheral Vascular System Volume 1 (Coding Illustrated Peripheral Vascular System)

Peripheral Vascular System Volume 1 (Coding Illustrated Peripheral Vascular System)

1 & 2 Kings, 1 & 2 Chronicles, Ezra, Nehemiah, Esther.

1 & 2 Kings, 1 & 2 Chronicles, Ezra, Nehemiah, Esther.

Microcomputer services in Canadian college and university libraries

Microcomputer services in Canadian college and university libraries

Odds & ends

Odds & ends

American local government.

American local government.

Integrating environmental education and science

Integrating environmental education and science

Infrared emissions from shock heated hydrocarbons Download PDF EPUB FB2

IR emissions from shock heated hydrocarbons duration-3 to 6 ms; therefore one must record emission intensity profiles rapidly, and is thus limited to a single IR wavelength for each shock.

To develop a spectrum at successive spectrometer settings one must repeat shock-runs, which are intrinsically only approximately by: 2. IR emissions from shock healed hydrocarbons duration to 6 ms; therefore one must record emission intensity profiles rapidly, and is thus limited to Infrared emissions from shock heated hydrocarbons book single IR wavelength for each shock.

To develop a spectrum at successive spectrometer settings one must repeat shock-runs, which are intrinsically only approximately Size: KB. Get this from a library. Infrared emissions from shock heated hydrocarbons. [K M Stephens; S H Bauer; United States.

National Aeronautics and Space Administration.]. The primary objective of this study was to ascertain whether low molecular weight hydrocarbons (LMWH) in the range C 4 to C 7, upon heating to temperatures above K, emit IR radiations at frequencies that correspond to the "unidentified infrared" (UIR) features—the recorded emissions from a variety of astronomical sources—reflection nebulae, Infrared emissions from shock heated hydrocarbons book regions, planetary Infrared emissions from shock heated hydrocarbons book, spiral galaxies and other Cited by: 2.

The primary objective of this study was to ascertain whether low molecular weight hydrocarbons (LMWH) in the range C4 to C7, upon heating to temperatures above K, emit IR radiations at frequencies that correspond to the 'unidentified infrared' (UIR) features - the recorded emissions from a variety of astronomical sources - reflection Infrared emissions from shock heated hydrocarbons book, HII regions, planetary nebulae, spiral galaxies and other Author: K.

Stephens and S. Bauer. It is proposed that infrared emissions could be due to shock-heated low molecular-weight hydrocarbons. The full Swan band system appeared in time-integrated emission spectra from shock-heated C2H2; no soot was generated.

At low resolution, the profiles on the high-frequency side of the black body maximum show no distinctive features. COMBUSTION OF HYDROCARBONS BEHIND A SHOCK WAVE C. ORR: The combustion of dilute fuel-oxygen mixtures in argon was studied by observing the infrared emissions of reactants, intermediates, and products.

The combustion reactions Infrared emissions from shock heated hydrocarbons book initiated by the incident sheck Wave in a simple two-section shock by:   The immediate application of this system is the study of emission and absorption spectra of shock heated hydrocarbons—C 2 H 2, C 4 H 4 and C 6 H 6 —which are possible precursors of species that generate infrared emissions in the interstellar : S.

Bauer, D. Borchardt. Books. Publishing Support. Login. the infrared emission lines of H 2 are useful in studying the excitation condition of shocks since H 2 is the most abundant molecule in interstellar clouds for a planar C-type shock, it is known that the shock-heated gas can be approximated as an isothermal and isobaric slab of gas.

The combustion of dilute fuel-oxygen mixtures in argon was, studied by observing the infrared emissions of reactants, intermediates, and products.

Infrared emissions from shock heated hydrocarbons book The combustion reactions were initiated by the incident shock wave in a simple two-section shock by: Synthetic infrared spectra of some polycyclic aromatic hydrocarbons containing up to 54 carbon atoms are reported.

The species studied include ovalene, circumcoronene, dicoronylene, and hexabenzocoronene. We report spectra for anions, neutrals, cations, and multiply charged cations. Here, we report the unidentified infrared (UIR) emission features of comet 21P/G-Z, which are likely due to complex organic molecules (both aliphatic and aromatic hydrocarbons), and the thermal emission from amorphous/crystalline silicates and amorphous carbon grains in its mid-infrared Author: Takafumi Ootsubo, Hideyo Kawakita, Yoshiharu Shinnaka, Jun-ichi Watanabe, Mitsuhiko Honda.

The 24 {mu}m emission traces the Balmer filaments almost perfectly but lies a few arcsec within, indicating an origin in interstellar dust heated by the shock. Subsequent decline in the IR behind the shock is presumably due largely to grain destruction through sputtering. We interpret the continuum as thermal emission from swept-up, shock-heated dust grains in the expanding shell of ND, which is clearly visible in the MIPS 24 micron image.

A micron emission hump appears superposed on the dust continuum, and we attribute this to Cited by: We present results from a survey searching for spatially resolved near-infrared line emission from molecular hydrogen gas in the circumstellar environments of nine young stars: AA Tau, AB Aur, D GG Tau, GM Aur, L LkHαUY Aur, and V high-resolution spectra of these stars showed the presence of rovibrational H 2 line emission at μm with characteristics more.

We present a comprehensive infrared study of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) using near- to mid-infrared images taken by Infrared Array Camera (IRAC;,and 8 μm) and Multiband Imaging Photometer (MIPS; 24 and 70 μm) onboard the Spitzer Space Telescope.

Among the 47 bona fide LMC SNRs, 29 were detected in infrared, giving a high detection Cited by: emission from electric arc furnace in steel industry: contribution from electric arc and co-combustion reactions Received: 1 April / Accepted: 28 July / Published online: 6 October Theoretical Modeling of Infrared Emission from Neutral and Charged Polycyclic Aromatic Hydrocarbons.

Article in The Astrophysical Journal (1) December with 12 Reads. The variation of equilibrium infrared emission from shock heated HCl and CO with temperature in various wavelength regions was measured.

By treating the data with a relation based on a suggestion by Decius the observations can be used to check the designation of the : Peter Borrell, R. Gutteridge, G.E. Millward. Polycyclic aromatic hydrocarbon (PAH) molecules are abundant and widespread throughout the Universe, as revealed by their distinctive set of emission.

The infrared colors suggest emission from molecular lines (nine remnants), fine-structure lines (three remnants), polycyclic aromatic hydrocarbons (four remnants), or a combination; some remnants feature multiple colors in different regions.

None of the remnants are dominated by synchrotron radiation at mid-infrared by:   We present a comprehensive infrared study of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) using near- to mid-infrared images taken by Infrared Array Camera (IRAC;,and 8 μm) and Multiband Imaging Photometer (MIPS; 24 and 70 μm) onboard the Spitzer Space Telescope.

Among the 47 bona fide LMC SNRs, 29 were detected in infrared, giving a high detection. Investigation of Dual Active Nuclei, Outflows, Shock-heated Gas, and Young Star Clusters in Markarian J. Mazzarella et al. The Astronomical Journal IOPscience. The μm Polycyclic Aromatic Hydrocarbon Emission as a Star Formation Rate Indicator Ji Hoon Kim et al.

The Astrophysical Journal An additional 28 Gigawatts of direct geothermal heating capacity is installed for district heating, space heating, spas, industrial processes, desalination and agricultural applications.

Geothermal power is cost effective, reliable, sustainable, and environmentally friendly, but has historically been limited to areas near tectonic plate boundaries. A black body is a material that is a perfect emitter of heat energy and has an emissivity value of 1. A material with an emissivity value of 0 would be considered a perfect thermal mirror.

For example, if an object had the potential to emit units of energy but only emits 90 units in the real world, then that object would have an emissivity.

Full text of "NASA Technical Reports Server (NTRS) Publications resulting from Infrared Astronomy Research and High Altitude Observations" See other formats. Nitric oxide is a gaseous, free radical which plays a role as an intracellular second messenger and a diffusable intercellular messenger.

To obtain direct evidence for NO functions in vivo, we have designed and synthesized diaminofluoresceins (DAFs) as novel fluorescent indicators for NO.

The fluorescent chemical transformation of DAFs is based on the reactivity of the aromatic vicinal Cited by: Heat is added to the system by heating pipes that run along the walls of the digester.

Hot water from the primary loop enters a mixing valve where it is mixed with water from the recirculating digester loop to obtain a desired inlet temperature Boiler Description The purpose of the boiler is to supply thermal energy in the form of hot.

Absorption measurements are conducted by detecting the two-color laser light transmitted through heated cells or across a shock tube, as illustrated in Fig.

The signals from the two mid-IR wavelengths are isolated by lock-in. Motor vehicle emissions account for around 46–90% of the mass of individual PAHs in ambient air particles in urban areas, while domestic heating can account for some 16% of PAHs in outdoor air in the United States, 29% in Sweden and 33% in Poland, as reported in the early s.

Other outdoor sources of PAHs are industrial plants, power Cited by: This thesis explores three new areas of laser diagnostic research: (a) mid-infrared diagnostics, (b) sensing in multiphase flows, and (c) a pplications to shock tube chemical kinetics.

We find that the dust and PAH emission are exceptionally similar between C32 and C35 overall, in part explained due to their locationsthey reside on or near boundaries of a 7 Myr-old Galactic outflow event and are partly by: 1.

For the past 20 years, polycyclic aromatic hydrocarbon (PAH) molecules have commonly been considered the carriers of unidentified infrared emission (UIE) features. Radiation emissions from subsequent firings of the pulse detonator increased, indicating that heat loss to the tube walls occurred in the early pulses.

Imaging of the quasi-steady burning within the cavity demonstrated that the highest burning flux (visible broadband chemiluminescence) and radiation from hydrocarbons ( µm) do not coincide Cited by: 8.

Investigation of Dual Active Nuclei, Outflows, Shock-heated Gas, and Young Star Clusters in Markarian J.

Mazzarella et al. The Astronomical Journal IOPscience. The Connection between μm Polycyclic Aromatic Hydrocarbon Emission and Active Galactic Nucleus Activity Jong-Hak Woo et al. The Astronomical Journal   Berné, O. et al. Mid-infrared polycyclic aromatic hydrocarbon and H2 emission as a probe of physical conditions in extreme photodissociation regions.

Astrophys. L–L (). Infrared telescopes can penetrate this dust, revealing much more of the story. They can also record emissions from heavenly bodies too cool to radiate light at shorter wavelengths and higher energies. For 28 months, the European Space Agency's Infrared Space Observatory (ISO) has scanned the heavens from its vantage point in Earth's orbit.

American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA The mid-infrared spectra show strong continuum emission from shock-heated dust and a unique, nearly featureless plateau in the {mu}m region, which we attribute to PAH molecules.

The typical PAH emission bands observed in the surrounding interstellar medium ahead of the blast wave disappear, which indicates shock processing of PAH molecules. @article{osti_, title = {Strong far-infrared cooling lines, peculiar CO kinematics, and possible star-formation suppression in Hickson compact group 57}, author = {Alatalo, K.

and Appleton, P. and Ogle, P. and Rich, J. and Xu, C. and Lisenfeld, U. and Bitsakis, T. and Guillard, P. and Charmandaris, V. and Cluver, M. and. Infrared (IR) emission features at, pdf,and m are generally attributed to IR fluorescence from (mainly) far-ultraviolet (FUV) pumped large polycyclic aromatic hydrocarbon (PAH.Start studying ch 16 quiz.

Learn vocabulary, terms, and more with flashcards, games, and other study tools.THE INFRARED SPECTRA OF POLYCYCLIC AROMATIC HYDROCARBONS WITH EXCESS PERIPHERAL H ATOMS (H n-PAHs) AND THEIR Ebook TO THE AND μm PAH EMISSION FEATURES.

Scott 1A. 1Sandford, Max P. 3 Bernstein, 2, and Christopher K. Materese. 1. NASA-Ames Research Center, Mail Stop –6, Moffett Field, CA –, USA; [email protected]