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The masses and radii of non-rotating and rotating configurations of pure hadronic stars mixed with selfinteracting fermionic asymmetric dark matter are calculated within the two-fluid formalism of stellar structure equations in general relativity. The Equation of State (EoS) of nuclear matter is obtained from the density dependent M3Y effective nucleon-nucleon interaction. We consider the dark matter particle mass of 1 GeV. The EoS of self-interacting dark matter is taken from two-body repulsive interactions of the scale of strong interactions. We explore the conditions of equal and different rotational frequencies of nuclear matter and dark matter and find that the maximum mass of differentially rotating stars with self-interacting dark matter to be ∼1.94 M with radius ∼10.4 km.

Experiments are carried out to study liquid− liquid two-phase flow patterns in Y-junction microchannels etched in glass chips. The liquid−liquid test systems used in the experiments are the three standard test systems recommended by the European Federation of Chemical Engineering (EFCE) for extraction studies. Four different flow patterns slug flow, slug and droplet flow, droplet flow, and parallel floware observed. Effects of microchannel diameter, flow rate, interfacial tension of the liquids, and hydrophobicity of channel wall on two-phase flow patterns have been studied, and flow regime maps are presented and discussed.

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The high spin states of 143 Sm have been studied by in-beam γ -spectroscopy following the reaction 130 Te( 20 Ne,7n) 143 Sm at E lab = 137 MeV, using a Clover detector array. More than 50 new gamma transitions have been placed above the previously known J π = 23/2 − , 30 ms isomer at 2795 keV. The level scheme of 143 Sm has been extended up to 12 MeV and spin-parity assignments have been made to most of the newly proposed level. Theoretical calculation with the relativistic mean field approach using blocked BCS method, has been performed. A sequence of levels connected by M1 transitions have been observed at an excitation energy ∼8.6 MeV. The sequence appears to be a magnetic rotational band from systematics.