Discrete Symmetries and Generalized Fields of Dyons

We have studied the different symmetric properties of the generalized Maxwell's - Dirac equation along with their quantum properties. Applying the parity (\mathcal{P}), time reversal (\mathcal{T}), charge conjugation (\mathcal{C}) and their combined effect like parity time reversal (\mathcal{PT}), charge conjugation and parity (\mathcal{CP}) and \mathcal{CP}T transformations to varius equations of generalized fields of dyons, it is shown that the corresponding dynamical quantities and equations of dyons are invariant under these discrete symmetries. Abstract Key words- parity, time reversal, charge-conjugation, dyons Abstract PACS No.- 14.80 Hv

High resolution 148Nd(3He,nγ) two proton stripping reaction and the structure of the 02 + state in 150Sm

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Study of 0+ States at iThemba LABS

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Molecular markers as tools for characterization and improvement of tea germplasm

Tea (Camellia sinensis [L.] 0. Kuntze) is one of the most common non-alcoholic beverages of the world used since ancient times. lndia is the largest producer and exporter of processed tea with over 30% share in global tea production. Thus, tea holds a key position in Indian economy generating over 660 million US dollars of foreign exchange annually.This item was scanned with a HP 4850 Scanjet at 300 dpi and consists of 9 pages

Behaviour of Polynuclear Aryl Sulfonates

A Series of Hexadecyl poly-nuclear 13romatic,Decalin and Tetralin sulfonates have been synthesized. The CMC, surface & interfacial tension values at various concentrations above and below CMC both in the aqueous and non-aqueous medium have been determined. The micellar size, shape, average number of monomers constituting the micelles and thermodynamic properties have also been estimated. These studies show .that value both in aqueous as well as Heptane medium decrease with increase in number of arorra . gs in the sulfonates. The size and shape of these micelles do not change appreciably in Hep e though the ,number of monomers constituting the micelles change with change of structure of aromatic moiety. The thermodynamic parameters do not seem to affect the surface active and solubilizing properties even though the free energy, enthalpy and entropy decrease with the increase in size of aromatic moiety. The surface and interfacial tension values are the lowest with aqueous and non-aqueous solution of Hexadecyl Naphthalene sulfonate but these values increase witl1increase in number of aromatic ring In the sulfonates. The size of the micelles of Hexadecyl Naphthalene sulfonates in aqueous soll!tions and the number of monomer molecules constituting the micelles is relatively bigger than other aromatic sulfonates. Although the size of micelles of Hexadecyl Benzanthracene sulfonate and Hexadecyl Pentacene sUlfonate are comparable yet the number of molecules constituting these micelles are the least. The solubilization of alkanes in the aqueous solution of Sodium Naphthalene sulfonate containing electrolyte and iso-butanol is highest but it falls off rapidly with all other sulfonates. This shows the extreme sensitivity of solubilization towards the structure of sulfonates. The detergency increases with the increase in size of aromatic moiety in these sulfonates. The structure thus has profound influence on the surface and micellar properties of the sulfonates. The studies are important from the point of view of appliqation of synthetic sulfonates as additives / surfactants in place of petroleum sulfonates. KEY WORDS Hexadecyl poly-nuclear sulfonates, aqueous & non-aqueous medium, surface tension and energy, CMC, micelle, shape and size of micelle, thermodynamic parameter, solubilization, detergency, viscosity

BEHAVIOUR OF POLYNUCLEAR ARYL SULFONATES

A Series of Hexadecyl poly-nuclear aromatic, Decalin and Tetralin sulfonates have been synthesized. The detergency increases with the increase in size of aromatic moiety in these sulfonates. The structure thus has profound influence on the surface and micellar properties of the sulfonates. The studies are important from the point of view of application of synthetic sulfonates as additives / surfactants in place of petroleum sulfonates. KEY WORDS Hexadecyl poly-nuclear sulfonates, aqueous & non-aqueous medium, surface tension and energy, CMC, micelle, shape and size of micelle, thermodynamic parameter, solubilization, detergency, viscosity