Showing papers by "Jadavpur University published in 1972"
122 citations
TL;DR: In this paper, the standard potentials of M/M + (M = Li, Na and K) electrodes in ethylene glycol and its aqueous mixtures have been determined at 25°C from emf measurements of the cells of the type M y (Hg)|MBr(m), solvent|AgBr/Ag.
29 citations
TL;DR: In this paper, it was shown that low-frequency transverse MHD waves may undergo damping inside a rotating stellar body and it was suggested that rotation may affect the heating of the stellar interior.
Abstract: It is shown that low-frequency transverse MHD waves may undergo damping inside a rotating stellar body. It is suggested that rotation may affect the heating of the stellar interior.
19 citations
TL;DR: Fracture-filling and recrystallization within the penecontemporaneous breccia fragments implies that both the processes started immediately after the deposition of silica.
19 citations
TL;DR: In this article, a correlation of electrolyte conductance with viscosity of solutions of non-electrolytes, viz urea, sucrose, glycerol and mannitol, is attempted.
18 citations
TL;DR: In this paper, a 1:1 hydrogen-bonded mixture of D -glucose, D -mannose and D -galactose has been found to activate D −mannose.
17 citations
15 citations
TL;DR: In this paper, the spectral effect on replacement of a carbon π center by a heteroatom nitrogen centre is discussed and attempt has been made to predict the spectral shifts in biguanide base and normal salts due to the substitution heteronitrogen atom in place of its carbon analogue in the substituted butadine.
15 citations
TL;DR: In this paper, the energy of activation, entropy, and free energy for the reaction of arsenic(III) and vanadium(V) over a temperature range of 42-55°C were evaluated.
14 citations
TL;DR: A number of mixed ligand complexes of rare earth ions La3+, Pr3+, Nd3+, Sm3+, Eu3+, Tb3+, with salicylaldehyde as the valence neutralising ligand and phenenthroline, bipyridine, quinoline and pyridine as neutral ligands have been synthesized and their composition established.
12 citations
TL;DR: The authors show how mutual 2-asummobility can be utilized for the testing of isobaricity of threshold functions containing no more than seven variables.
Abstract: A simple algorithm for testing the 2-summability of Boolean functions is presented in this note. The concept of asummobility has been extended and the idea of "mutual 2-asummability" has been introduced. The authors show how mutual 2-asummobility can be utilized for the testing of isobaricity of threshold functions containing no more than seven variables.
TL;DR: A novel NAD-dependent dehydrogenase from the same source which specifically utilizes galactose6-phosphate as its substrate is detected which is likely to be formed under normal metabolic conditions though its fate either in that case or under pathological conditions remains unknown.
TL;DR: In this paper, some important primary structures have been studied and described from the chromities of Sukinda Valley in Orissa, India, including primary layering, ball and pillow structures, and cross laminations.
Abstract: Some important primary structures have been studied and described from the chromities of Sukinda Valley in Orissa, India. The structures include primary layering, ‘Ball and Pillow’ structures, and cross laminations. From the similarity of the structures and texture of the chromitites with the sedimentary rocks, it is presumed that the chromities were formed by magmatic sedimentation under the influence of gravity.
TL;DR: In this article, the stresses and strains in the plastic range in an annular disk due to a steady-state thermal gradient are found numerically on the basis of J 2 deformation theory for a variety of representative materials.
TL;DR: In this article, a pseudo-metric space for functions of bounded variation relative to a set is introduced, and it is shown that every closed sphere in ( X, d ) is complete.
Abstract: The present paper on functions of bounded variation relative to a set has its point of departure in the work of R. L. Jeffery [10]. Below we recapitulate Jeffery's class U of functions of bounded variation relative to a set, we state and prove a number of preliminary lemmas and theorems, we introduce a suitable pseudo- metric space ( X, d ) of such functions, and the analogous space , and prove that ( X, d ) is separable, that every closed sphere in ( X, d ) is compact and that is complete. These results extend known results of C. R. Adams, and C. R. Adams and A. P. Morse for the space of usual BV functions.
TL;DR: In this paper, a symmetric and accurate triangular waveform generating circuit is described, where a single constant current generator is used to alternately charge and discharge a capacitor in a linear manner.
Abstract: A symmetric and accurate triangular waveform generating circuit is described. A simple approach in maintaining the symmetry and linearity of triangular waveform is made by using a single constant current generator to alternately charge and discharge a capacitor in a linear manner. This features perfect symmetry of the waveform over a wide frequency range while maintaining amplitude constancy. The circuit also provides square waveforms of equal on and off periods with rise and fall times of the order of a few nanoseconds. Continuous variation of frequency of the waveform generated is possible by changing a single parameter and it is feasible to have linear, exponential, or logarithmic modulation of frequency. It can be used as a triangle-square waveform generator and as a triangle-to-sine converter with the addition of a few components.
TL;DR: In this paper, a generalized method of solution of the problem of incompressible, unsteady, laminar boundary layer flow with the main-stream velocity of the formX(x) N(t) is developed.
Abstract: In the present paper, a generalized method of solution of the problem of incompressible, unsteady, laminar boundary layer flow with the main-stream velocity of the formX(x) N(t) is developed. In many practical problems, the external velocity potential may be given in the above separable form, from theoretical and or experimental considerations.
TL;DR: In this article, the 1:1 donor-acceptor complexes of 2,4-dinitrophenol and m-chloro CCP with different solvents such as dimethylsulphoxide, dimethylformamide, ethanol, methanol and acetonitrile have been studied spectrophotometrically in carbon tetrachloride solution.
TL;DR: In this paper, a Static Polyphase distance relaying scheme was proposed to cope with all single line-to-ground faults and all doible-phase faults, with or without ground, by the phase-comparison of line-neutral compensated fault point voltages.
Abstract: The paper describes a Static Polyphase distance relaying scheme responding correctly to all Single line-to-ground faults and all doible-phase faults, with or without ground, by the phase-comparison of line-to-neutral compensated fault point voltages. It has been shown that if any two, out of the three, phase voltages at the fault point derived at the relaying point, are fed to a 90°phase comparator, then such a polyphase distance relay will operate correctly for all types of faults, except in one case of single line-to-ground fault, in one case of double phase-to-ground fault, and also in case of three-phase fault. To cater for all types of faults, a scheme has been proposed by the authors, which utilises four 90°transient free phase comparators based on block average phase-comparison principle. Out of these four comparators one is meant for catering three-phase fault and the remaining ng three respond correctly for all single line-o- ground and all double- phase faults, with or without ground. The outputs from the four units, are fed to a logic 'OR' gate which initiates tripping. Theoretical performance ormance characteristics of this relaying scheme during different types of faults have been explained by a generalised theory of 2-input phase comparator. Experimental verification on a laboratory model shows that the scheme is feasible and may be adopted in practice.
01 Jan 1972
TL;DR: In this article, the authors derived expressions for the propagation constants in the electrically asymmetric pyrolytic graphite and showed that of the four possible modes of propagation, three attenuate heavily and the fourth can propagate to practical distances (∼ 1 mm).
Abstract: Expressions for the propagation constants in the electrically asymmetric pyrolytic graphite are derived. of the four possible modes of propagation, three attenuate heavily and the fourth can propagate to practical distances (∼ 1 mm). Material having such propagation characteristics has been found to be highly suitable for mode filtering.
TL;DR: In this article, the problem of torsional vibration of a finite circular cylinder of non-homogeneous material has been considered and the lateral surface of the cylinder is assumed to be free from shearing stress.
Abstract: In the present note, the problem of torsional vibration of a finite circular cylinder of non-homogeneous material has been considered. The lateral surface of the cylinder is assumed to be free from shearing stress. One end of the cylinder is taken to be fixed while a circular region on the other end which is not fixed is acted over by a periodic shearing force.
TL;DR: An explicit Lyapunov function for a nonlinear second-order time-varying system is presented in this paper, which gives a wider range of parameters for global asymptotic stability than that obtained by an earlier method.
Abstract: An explicit Lyapunov function for a nonlinear second-order time-varying system is presented which gives a wider range of parameters for global asymptotic stability than that obtained by an earlier method.