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701.
R. Eggenhoffner C.S.N. Murthy F.G. Fumi 《Journal of Physics and Chemistry of Solids》1978,39(12):1295-1299
Some comments are presented on three phenomenological potentials for the alkali halide crystals proposed in recent years by Narayan and Ramaseshan, by Woodcock, and by Romano, Margheritis and Sinistri. In the context a brief comment is made on the van der Waals coefficients reported by Hajj. 相似文献
702.
In the analysis of clinical events associated with time, one often encounters dependent observations. The status of a patient at two different points of time during the course of treatment is one such example. In this paper, an appropriate model is assumed for the two random variables and a procedure is developed to answer the question: Do the two values, when compared, reflect a change in the patient? 相似文献
703.
704.
M. Ramakrishna Murthy B. Sanjeeva Rao 《Journal of Polymer Science.Polymer Physics》1990,28(2):133-138
Investigations on the effects of γ irradiation on poly(methylene oxide) (POM) and poly(ethylene oxide) (PEO) have been made employing electron spin resonance (ESR) spectroscopy. The ESR sextet and doublet spectra, recorded for POM and PEO, respectively, on irradition in air at room temperature are broadened as the temperature is lowered and show a reversible change in line shape with temperature. The spectra are analyzed by computer simulation, employing Lorentzian line-shape functions and the least-squares method of total curve fitting. The component spectra are evaluated and are assigned. Superposition of the component quartet, triplet, and doublet spectra, corresponding to the radicals ?H3, ?H2O , and O?HO , respectively, together with a singlet due to the radicals ?CH2 is considered to be the best fit to the observed spectrum for POM. The doublet spectrum recorded for PEO has been assigned to the radicals ?HO . The reversible broadening of the spectra has been associated with the mechanism of molecular motions around the glass transition temperatures of these polymers. 相似文献
705.
John Richardson Vrudhula K. Murthy L.Julian Haywood 《Applied mathematics and computation》1977,3(3):247-251
The general problem treated in this paper is the derivation of the distribution of intervals between neighboring points or “events” on a line. For the case in which the events are independently and uniformly distributed the distribution of intervals is well known. However, from the applications point of view, the nonuniform case is highly important, a situation motivating the derivation of the results in this paper. 相似文献
706.
707.
The transfer of momentum of a test particle to its neighbours is investigated in Lennard-Jones fluids by computer experiments at different densities. 相似文献
708.
Combustion of LPG produces carbon dioxide directly up to a temperature of 525°C. In addition, the formation of unsaturates is observed at temperatures above 550°C as a result of oxidative dehydrogenation and subsequent combustion of unsaturates to carbon dioxide at temperatures higher than 575°C.
525°C. , 550°C . 575°C .相似文献
709.
A Raghava Rao SS Ramana Reddy K Premchand K L Narasimham K Parthasaradhi V Lakshminarayana 《Pramana》1982,18(3):271-278
The values of incoherent scattering functions are determined experimentally for 145 keV gamma rays in elements Au, Ag and
Y at scattering angles 40°, 70° and 100°, using a x-ray gamma coincidence technique. The corresponding theoretical values
are obtained from the tabulations of Hubbellet al, and computed from the models of Jauch and Rohrlich and Shimizuet al. A comparison between the theoretical and experimental results showed that the non-relativistic approach adopted in the theory
of Shimizuet al is inapplicable to the present cases. A gross agreement is noticed between the present experimental results and the other
theoretical values. 相似文献
710.