Proceedings of the Indian Academy of Sciences - Section A

Raman, C.

doi: 10.1007/BF03046354pmid: N/A

Raman, C.

doi: 10.1007/BF03046355pmid: N/A

Subramaniam, R.; Kharadze, G.

doi: 10.1007/BF03046356pmid: N/A

This paper deals with a theoretical investigation of the energy spectrum of thermal neutrons inelastically scattered by a ferromagnetic crystal. The method of double-time temperature-dependent Green’s functions is used. Formulæ are derived for the line width and for an asymmetry parameter leading to a deviation from the Lorentzian form. The results are discussed and compar d with earlier work. Special attention is paid to the question of the deviation of the energy distribution from the purely Lorentzian form.

Mishra, Shankar

doi: 10.1007/BF03046357pmid: N/A

The heat transfer by laminar flow of elastico-viscous liquids has been studied by using the constitutive equations of motion for elastico-viscous liquids and energy equation. The plane Poiseuille flow has been examined in detail and is found to be characterized by two parameters R c and S. The presence of the elastic elements in the viscous liquids is found to decrease the velocity and temperature at any point if the walls are at constant temperature, but the elastic elements increase the temperature at any point if the walls are having linearly varying temperature.

Rama Rao, P.; Anantharaman, T.

doi: 10.1007/BF03046358pmid: N/A

New results on the impact of thermal and mechanical treatment of pure cobalt on the content of the hexagonal phase and densities of growth as well as deformation stacking faults have been presented. The significance of these results along with those obtained by earlier investigators has been discussedvis-a-vis the spontaneous as also stress-induced f.c.c.→h.c.p. trans-formation in cobalt.

Apparao, Krishna; Ramadurai, S.

doi: 10.1007/BF03046359pmid: N/A

The effect of solar wind on the relative abundances of galactic cosmic rays is assessed using the theories proposed by Parker1 and Dorman.2 The modulation factors for the ratios of electrons, deuterons, tritons and helium nuclei to protons, helium-3 to helium-4 and light (Z=3–5) to medium nuclei (Z=6–9) are presented.

Venkateswarlu, K.; Rajalakshmi, K.

doi: 10.1007/BF03046360pmid: N/A

The theory of mean square amplitude of vibration using the symmetry co-ordinates has been applied to the pyramidal XYZ2 molecular model. The elements of the mean square amplitude matrices and the mean amplitude quantities at 300° K. for thionyl halides have been reported.

Venkateswarlu, K.; Mariam, S.

doi: 10.1007/BF03046361pmid: N/A

The theory of mean-square amplitude matrices is applied to the bent XYZ molecules. The principal mean amplitudes of vibration for the molecules investigated here are reported for 300° K.