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91.
Arndt Joedicke Norbert Peters Mohy Mansour 《Proceedings of the Combustion Institute》2005,30(1):901-909
The structure and stabilization mechanism of turbulent lifted non-premixed hydrocarbon flames have been investigated using combined laser imaging techniques. The techniques include Rayleigh scattering, laser induced predissociation fluorescence of OH, LIF of PAH, LIF of CH2O, and planar imaging velocimetry. The geometrical structure of multi-reaction zones and flow field at the stabilization region have been simultaneously measured in 16 hydrocarbon flames. The data reveal the existence of triple flame structure at the stabilization region of turbulent lifted flames. Increasing the jet velocity leads to an increase of the lift-off height and to a broadening of the lift-off region. Further analysis of the stabilization criterion at the lift-off height based on the premixed nature of triple-flame propagation and flow field data has been presented and discussed. 相似文献
92.
93.
Mansour H. El Naby 《Zeitschrift für Physik A Hadrons and Nuclei》1963,174(2):269-279
The optical constantsn andk of the alkali metal potassium have been measured in the wavelength region from 0·365μ to 2μ, in the solid and liquid state at temperatures between ?180° C and +85° C by the usual method of analysing intensity and polarisation of the monochromatic radiations reflected by the metals surface. The mirrorlike surfaces, free of any contamination and not distorted by any treatment, were prepared and measured in ultrahigh vacuum, the metal being purified before by careful repeated destinations in high vacuum. Values thus obtained forn, k, k 2?n 2 and 2nk are listed in tables 1 and 2. Discussion of these values especially with regard to the Drude-theory of optical constants of metals is given in two subsequent communications. 相似文献
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99.
M. A. Abuzeid M. I. El-Zaiki N. A. Mansour A. I. Popov H. R. Saad V. E. Storizhko 《Zeitschrift für Physik A Hadrons and Nuclei》1967,199(5):506-517
Total yields and angular distributions of gamma rays following the inelastic scattering of protons from Cr50 and Cr54 have been measured at proton energies below 2.5 MeV. Gamma ray spectra resulting from the proton radiative capture by Cr50 and Cr54 were obtained. Transitions from most of the Mn51 and Mn55 low-lying levels have been observed. The experimental results are in good agreement with predictions of the statistical compound nucleus theory. 相似文献
100.
n-Type indium antimonide-Au hybrid macro-structure was successfully fabricated on p-GaAs substrate by a simple and economic
flash evaporation technique. The elemental composition of the prepared InSb film was confirmed by energy dispersive X-ray
spectroscopy microanalysis (EDX). The surface topography and crystal structure of the InSb film was characterized by scanning
electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The magnetoresistance of the prepared hybrid macro-structure
was measured and discussed in terms of the model of current redistribution. 相似文献