Zobrazeno 1 - 10
of 427
pro vyhledávání: '"I. N. Tang"'
Publikováno v:
Osteoporosis International. 22:195-200
We evaluated bilateral femoral neck bone mineral densities (FNBMDs) in 32 men with poliomyelitis and their matched controls. Men with poliomyelitis had significantly lower FNBMD in both legs, and FNBMD was lowest in their shorter legs. Knee extensor
Publikováno v:
Journal of Geophysical Research: Atmospheres. 102:23269-23275
Sea salt particles are constantly produced from ocean surfaces by wave-wind interactions and removed by deposition and precipitation scavenging. These particles constitute the background aerosol for light scattering in the marine boundary layer. In t
Publikováno v:
The Journal of Physical Chemistry A. 101:4191-4195
is monitored continuously using a capacitance manometer. The change in the particle’s composition as the temperature or relative humidity (RH) is varied is determined by measuring the mass-to-charge ratio (with an accuracy of1%). A vertically polar
Hydration and Raman scattering studies of levitated microparticles: Ba(NO3)2, Sr(NO3)2, and Ca(NO3)2
Autor:
I. N. Tang, K. H. Fung
Publikováno v:
The Journal of Chemical Physics. 106:1653-1660
The phase transformation and hydration of inorganic salt particles composed of alkaline earth metal nitrates, Ba(NO3)2, Sr(NO3)2, and Ca(NO3)2, are investigated in a quadrupole cell, in which a levitated single microparticle is in dynamic equilibrium
Publikováno v:
Journal of Geophysical Research: Atmospheres. 98:2911-2915
An improved gas phase sampler and a recently developed nonenzymatic measurement method for H2O2 and HOCH2OOH(HMHP) are described. The gas phase sampler is equipped with a surfaceless intake to alleviate heterogeneous loss of H2O2 in the sampling line
Autor:
I. N. Tang, K. H. Fung
Publikováno v:
Applied Spectroscopy. 46:1189-1193
The polarization of Raman scattering from a single spherical droplet has been measured for the first time. Experiments are performed in a quadrupole cell, in which a charged liquid droplet is trapped by electro-dynamic forces. Raman scattering intens
Autor:
I. N. Tang, K. H. Fung
Publikováno v:
Applied Spectroscopy. 46:159-162
An analytical technique for aerosol samples which utilizes the resonance Raman effect is described. The aerosol particles were generated at 50 kHz by a vibrating orifice. The nominal particle size was 45 µm in diameter. The visible lines (4579, 4765
Autor:
I. N. Tang, K. H. Fung
Publikováno v:
Applied Spectroscopy. 45:734-737
An experimental technique using individual aerosol particles for relative Raman scattering cross-section measurement is described. An electrostatically charged particle of known chemical composition, 10 to 15 µm in diameter, is suspended in an elect
Autor:
I. N. Tang, K. H. Fung
Publikováno v:
Optical Society of America Annual Meeting.
Raman spectroscopy is applied to the physical and chemical characterization of an electrostatically charged single microparticle, which is trapped and suspended in an electrodynamic cell. The microparticle, 10 to 15 pm in diameter and composed of del
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