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101.
G. V. L. N. Murty F.A.Sc. K. S. R. Krishnaiah M. S. Raju 《Proceedings Mathematical Sciences》1966,64(2):84-90
Some systematic studies have been carried out on the influence of temperature on the photometric determination of silicon by the molybdenum blue procedure. It has been shown that temperature exerts a distinct influence on the colour intensities involved in the different procedures and the extent of this influence depends largely on the nature of the acid medium and the reducing agent employed. Ascorbic acid has been successfully employed to overcome the influence of temperature. Our thanks are due to the management of the Tata Iron and Steel Company for permitting the publication of this paper. 相似文献
102.
103.
C6H5IO in CH3OH-H20 is activated towards electrophilic attack upon various alkenes by Fe(ClO4).9H2O, FE(III) bleomycin and ZN(II) bleomycin. The results imply that direct transfer of oxygen from an Fe(V)=0 intermediate is not required in the mechanism of oxygenation by iron-containing species, and that much earlier work is questionable as models for biological oxygenation. 相似文献
104.
Calcite single crystals on neutron bombardment change their colour to pale red, red and deep red, as the duration of irradiation
increases. The irradiated surface becomes rugged and on etching, a large number of micropits are observed. Using Vicker’s
hardness indenter, it is observed that the hardress of the irradiated crystal increases with the increase in the total dosage.
From Laue x-ray diffraction studies of irradiated crystals, distortion of lattice is observed. Absorption spectra in the visible
region show an extra peak for irradiated samples which is absent for radiated ones. The radiation effects are annealed to
a considerable extent on heat treatment. The implications are discussed. 相似文献
105.
The usefulness of the pseudo SU(3) weak coupling limit for the study of even-even nuclei for which the protons and neutrons fill different major oscillator shells is examined. The content of proton and neutron configurations in the total wave function of the coupled space is estimated in order to understand their relative importance. The structure of 144Ba is investigated in detail. Our calculations show that both proton and neutron configurations are important to study the collective excitations in nuclei and perhaps the strong coupling limit is more appropriate for nuclei such as those considered in this work. 相似文献
106.
A rapid method for the volumetric determination of gold is described. Gold(III) is reduced to metal with excess of hydroquinone at room temperature and the excess is titrated with ceric sulphate. The effect of chloride ion on the reducibility of gold(III) to the metal is discussed. This method can be successfully employed for the determination of gold in presence of certain base and noble metals. The method was successfully adopted for the determination of gold in a commercial sample. 相似文献
107.
C V A V B Chandra Raju 《Pramana》1985,24(4):L657-L661
Considering that the neutral interaction is free of triangle anomalies we derive an expression for the most general neutral
interaction with two neutral currents. We show that the Bargers version is a special case. We also determine the interaction
wheneverZ, D are mass eigen states and show that this differs from the Barger’s version in an essential way. 相似文献
108.
109.
S. Fujita J.P. Riley C.C. Chen Ching-Lung Ko C.S. Raju T. Yamaguchi 《Journal of Physics and Chemistry of Solids》1973,34(12):2075-2089
The correlation function formula for the dynamic conductivity of a system of non-interacting electrons in the field of impurities is analyzed in terms of proper connected diagrams. By selecting those diagrams appropriate in the region of weak coupling and low impurity concentration, a set of coupled equations for the energy broadening γ (ω, ε, ns) and the energy shift Δ(ω, ε, ns) is derived, where both γ and Δ depend on the frequency ω of a probing field, the energy ε of the electron, and the concentration, ng, of impurities. With the assumption of a finite range potential, these equations are solved. It is found that γ (ω, ns) is smaller than that extrapolated value which the conventional expression γ0 for the low-concentration collision frequency would predict, in the entire region studied, that the difference γ0-γ becomes appreciable when the ratio of the average time between scatterings, τc, to the average duration of a scattering, τd, is 100 or less, that γ (ω, ns) decreases monotonically from its static value γ (0, ns), and becomes vanishingly small in the region ω≈1/τd, and that in the static limit (ω=0), γ=γ0[1?(2/π) (γ0τd)+…], that the energy shift Δ is positive, and increases from 0 and reach a peak of magnitude γ0 as ω is raised from 0. By using the γ and Δ obtained, the dynamic conductivity σ(ω, ns) for degenerated electrons is calculated. The deviation, σ-σ0, from the conventional expression σ0=(?i) (nee2/M) [ω-iΓ0]?1, (ne]=number density of electrons), for 0°K, is appreciable when the ratio τc/τd is 100 or less. The field-term correction, which arises from the modification of the scattering due to the probing field, is found to be negligible in the entire region studied. 相似文献
110.