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pro vyhledávání: '"Marshall Lapp"'
Autor:
Marshall Lapp
The Laser Raman Workshop on the r'eas urement of Gas Properti es i sone of aseries of occasional meetings organized in an informal workshop format through the stimulation of Project SQUID, Office of Naval Research. This workshop is the second to be o
Publikováno v:
Applied optics. 26(24)
A new optical technique has been developed for low level optical extinction measurements in gaseous media. It is a variation on direct light transmission where the sample gas density in a cell is modulated acoustically by a loudspeaker. The amplitude
Autor:
Robert W. Pitz, Donald W. Sweeney, Robert P. Lucht, C.P. Fenimore, Normand M. Laurendeau, Marshall Lapp, Michael C. Drake
Publikováno v:
Symposium (International) on Combustion. 20:327-335
The first quantitative, time- and space-resolved measurements have been obtained for probability density functions of OH concentration in nonpremixed flames. Measurements using single-pulse, laser-saturated fluorescence in laminar, transitional, and
Publikováno v:
Physics Today. 28:36-47
Virtually all the energy we derive from fossil fuels is obtained through some form of combustion. Any technical advance that can result in more efficient combustion systems without sacrificing environmental quality would therefore be a major contribu
Publikováno v:
Symposium (International) on Combustion. 18:1521-1531
Instantaneous values of temperature and major component concentrations have been measured simultaneously using pulsed Raman spectroscopy in hydrogen-air diffusion flames of low turbulence produced in a well-controlled co-flowing fan-induced combustio
Publikováno v:
AIAA Journal. 24:905-917
L Introduction M practical combustion devices are turbulent nonpremixed flames. The development of appropriate computer models" for practical combustors holds the potential for their computer-aided design with lower development costs, higher fuel eff
Publikováno v:
Symposium (International) on Combustion. 20:1983-1990
Nitric oxide formation from thermal and FBN sources is studied in a turbulent nonpremixed syngas flame using laser diagnostic techniques and turbulent combustion modeling. The well-characterized syngas flame (produced by a central jet of CO/H2/N2/CH4
Autor:
Marshall Lapp, Danny L. Hartley
Publikováno v:
Combustion Science and Technology. 13:199-210
Abstract–The need for spatially and temporally well-resolved non-perturbing measurement techniques for modern combustion systems has stimulated development of various new methods for sensing the physical and chemical conditions. Strong requirements
Publikováno v:
Optics Communications. 9:195-200
Experimental data and analyses are presented for the determination of gas temperature by measurements of vibrational Raman scattering intensity ratios of Stokes Q -branch fundamental bands. The method is demonstrated for two thermal equilibrium exper
Autor:
Marshall Lapp, L.P. Harris
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 6:169-179
Detailed measurements have been made of the absorption cross section of Cs 2 in the visible ( C « X 1 ∑ + g , and other higher systems) and of K 2 in the red ( B 1 ∏ u « X 1 ∑ + g ). The C s 2 values, extending from 4700 to 6700 A, vary from