Results 251 to 260 of about 2,341,395 (296)

Ultrasonic spectrum of adrenal masses

Urology, 1979
Adrenal masses are amenable to ultrasonic examination. The ultrasonic characteristics of eight adrenal masses in 6 patients are described. In particular, an ultrasonic study of the natural history and progression of a large adrenal adenoma is reported.
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Meson mass spectrum

Il Nuovo Cimento, 1959
Extended particles can possess an angular momentum as well as an intrinsic spin s. The energy can be expected to be a function of l(l + 1) and of s(s + 1) and may assume the simple form E/C/sup 2/ = aSTAl(l + 1) + s(s + l)!m/ sub e/The lightest meson is the mu meson with mass m == 207 m/sub e/.
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Mass spectrum of tetrabutyltin

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1968
1. The mass spectrum of tetrabutyltin was taken on the MI-1305 and MI-1311 instruments, and a substantiation was given for the dependence of the ratio H4−xSnBux+/SnBux+ upon the number of butyl groups in the ion. The processes of decomposition of metastable ions were discussed. 2.
I. L. Agafonov, V. I. Faerman, Yu. N. Tsinovoi, N. V. Larin, V. A. Umilin   +4 more
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Discrete cluster mass spectrum

Il Nuovo Cimento A, 1978
The discrete cluster mass spectrum suggested by cosmicray data is discussed within the context of a multistep cluster sequentialdecay model. It is shown that such a picture is compatible with the data on dispersion, provided the mass spectrum is not bounded from above as the energy increases.
M. Anselmino, A. Ballestrero, E. Predazzi, B. Carazza   +3 more
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Simple Mass Spectrum Linearizer

Review of Scientific Instruments, 1969
An inexpensive modification of a commercial mass spectrometer is described which permits linear display of ion intensity vs m/e on an X-Y recorder. Its evaluation shows that the major limitations arise from recorder specifications. For magnetically scanning instruments, mass assignments can be made within ±0.006% utilizing the maximum zero offset of 85%
G. G. Meisels, B. G. Giessner, L. J. Leger   +2 more
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Mass spectrum of nitromethane

Organic Mass Spectrometry, 1974
AbstractThe mass spectrum of nitromethane points to rupture of the CH3NO2 bond as the dominant primary reaction, as also observed in pyrolysis, photolysis and radiolysis. Isomerization of the molecular ion to the nitrite configuration seems to contribute little in the mass spectrum of nitromethane, in contrast to those of nitrobenzene and other ...
Seymour Meyerson, Ellis K. Fields
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The mass spectrum

1996
FORMATION OF IONS A mass spectrometer works with electrically charged particles and, before a mass spectrum can be obtained, the substance under examination must be ionized if it is not already ionic. Most research into mass spectrometry has been carried out on positive ions and these are discussed in detail.
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Field desorption mass spectrum of glucagon

Biological Mass Spectrometry, 1976
A low resolution, high sensitivity study has been made of the field desorption mass spectrum of glucagon, a 29 amino acid residue underivatized peptide. The highest molecular weight fragments observed, when spectra were taken under conditions which minimized surface reactions of the peptide on the emitter, were found to contain no more than 18 amino ...
H U, Winkler, R J, Beuhler, L, Friedman
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Mass spectrum of the strange dibaryon

Physical Review D, 1988
Based on the diquark-cluster model, the mass spectrum of low-lying S=-1 strange dibaryons is predicted. In this scheme, two ${J}^{P}$${=0}^{\mathrm{\ensuremath{-}}}$ states with I=(1/2 and (3/2 are degenerate at the lowest-energy level, around 2.2 GeV c.m. energy.
, Konno, , Nakamura, , Noya
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Heavy-Fermion Mass Spectrum

Physical Review, 1957
The heavy-ferraion mass spectra predicted by several Previously suggested Lagrangians were investigated and results are given. (M.H.R.)
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