Facultyhttps://dyuthi.cusat.ac.in:443/xmlui/handle/purl/4812024-02-07T16:24:18Z2024-02-07T16:24:18ZFrustrated limit cycle and irregular behaviour in a nonlinear pendulumAmbika, GNandakumaran, V Mhttps://dyuthi.cusat.ac.in:443/xmlui/handle/purl/27072012-01-31T20:30:11Z1990-01-25T00:00:00ZFrustrated limit cycle and irregular behaviour in a nonlinear pendulum
Ambika, G; Nandakumaran, V M
We discuss how the presence of frustration brings about
irregular behaviour in a pendulum with nonlinear
dissipation. Here frustration arises owing to
particular choice of the dissipation. A preliminary
numerical analysis is presented which indicates the transition
to chaos at low frequencies of the driving force.
1990-01-25T00:00:00ZNonlinear Analysis of an Electroencephalogram (ECG) During Epileptic SeizureLalaja, VargheseNampoori, V P NPratap, Rhttps://dyuthi.cusat.ac.in:443/xmlui/handle/purl/27062014-09-12T08:49:26Z1987-10-20T00:00:00ZNonlinear Analysis of an Electroencephalogram (ECG) During Epileptic Seizure
Lalaja, Varghese; Nampoori, V P N; Pratap, R
A mathematical analysis of an electroencephalogram of a human Brain during an epileptic
seizure shows that the K2 entropy decreases as compared to a clinically normal brain while the
dimension of the attractor does not show significant deviation.
1987-10-20T00:00:00ZElectrical conductivity, dielectric properties and phase transition in ethylenediammonium sulphate single crystalsSanthakumari, N CVallabhan, C P Ghttps://dyuthi.cusat.ac.in:443/xmlui/handle/purl/26592011-12-17T20:30:17Z1992-05-01T00:00:00ZElectrical conductivity, dielectric properties and phase transition in ethylenediammonium sulphate single crystals
Santhakumari, N C; Vallabhan, C P G
D.C. and a.c. electrical conductivities, dielectric constant and dielectric loss factor in single crystals of ethylenediammonium sulphate, (H3NCH2CH2NH3)(SO4), have been measured axiswise as a function of temperature. Anomalous variations in all the above properties at 480 K indicate the occurrence of a phase transition in the above material at this temperature. The existence of such a phase transition is also confirmed by DSC measurements. Electrical conductivity results are analysed and the activation energies of conduction at different temperature regions have been evaluated from the logσ vs 103T−1 plot. Possible mechanisms for the electrical conduction process are discussed, the available results being in favour of a proton transport model.
1992-05-01T00:00:00ZMeasurement of thermal diffusivity of some halogeno benzimidazole complexes of cobalt(II), copper (II) and copper(I) using laser induced photoacoustic effectSankara Raman, SNampoori, V P NVallabhan, C P GSaravanan, NMohammed Yusuff, K Khttps://dyuthi.cusat.ac.in:443/xmlui/handle/purl/26582011-12-17T20:30:26Z1996-01-01T00:00:00ZMeasurement of thermal diffusivity of some halogeno benzimidazole complexes of cobalt(II), copper (II) and copper(I) using laser induced photoacoustic effect
Sankara Raman, S; Nampoori, V P N; Vallabhan, C P G; Saravanan, N; Mohammed Yusuff, K K
1996-01-01T00:00:00Z