40 research outputs found
1S0 Proton and Neutron Superfluidity in beta-stable Neutron Star Matter
We investigate the effect of a microscopic three-body force on the proton and
neutron superfluidity in the channel in -stable neutron star
matter. It is found that the three-body force has only a small effect on the
neutron pairing gap, but it suppresses strongly the proton
superfluidity in -stable neutron star matter.Comment: 12 pages, 2 figure
Effect of the momentum dependence of nuclear symmetry potential on the transverse and elliptic flows
In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck
transport model, effect of the momentum dependence of nuclear symmetry
potential on nuclear transverse and elliptic flows in the neutron-rich reaction
Sn+Sn at a beam energy of 400 MeV/nucleon is studied. We find
that the momentum dependence of nuclear symmetry potential affects the rapidity
distribution of the free neutron to proton ratio, the neutron and the proton
transverse flows as a function of rapidity. The momentum dependence of nuclear
symmetry potential affects the neutron-proton differential transverse flow more
evidently than the difference of neutron and proton transverse flows as well as
the difference of proton and neutron elliptic flows. It is thus better to probe
the symmetry energy by using the difference of neutron and proton flows since
the momentum dependence of nuclear symmetry potential is still an open
question. And it is better to probe the momentum dependence of nuclear symmetry
potential by using the neutron-proton differential transverse flow and the
rapidity distribution of the free neutron to proton ratio.Comment: 6 pages, 6 figures, to be published by EPJ
Damage analysis of tetragonal perovskite structure ceramics implicated by asymptotic field solutions and boundary conditions
Metodologias para determinação da digestibilidade de dietas contendo fontes proteicas vegetal ou animal em cães
Recommended from our members
Interlayer transport in the organic superconductor κ-(BEDT-TTF) 2Cu[N(CN) 2]Br
Interlayer magnetoresistance as a function of field and temperature with fields parallel and perpendicular to the current direction in the organic superconductor κ-(BEDT-TTF)
2Cu[N(CN)
2]Br has been measured. For H ∨ I, the isothermal magnetoresistance R(H) displays a peak effect as a function of field. For H ⊥ I, R(H) increases monotonically with increasing field. Comparison of the peak field with the H
c2(T) data suggests that the peak in R(H) occurs in the mixed state. We analyze the data in terms of the resistively shunted Josephson junction model and the density of states fluctuation model
Numerical Investigation on the Ground Response of a Gob-Side Entry in an Extra-Thick Coal Seam
This study was aimed at the large deformation phenomenon of rock mass surrounding the gob-side entry driven in a 20 m extra-thick coal seam. Taking tailgate 8211 as the engineering background, a numerical investigation was employed to analyze the deformation law of the gob-side entry. The study results are as follows. (1) Because the immediate roof was composed of weak coal mass with a thickness of 17 m, the roof coal mass was vulnerable to fail with the effect of overlying strata pressure; thus, a visual subsidence of roof coal mass with a maximum convergence of 800 mm was observed in the field. (2) The bearing capacity of the coal pillar was significantly less than that of the panel rib, resulting in the pillar failing more easily under the ground pressure and then generating large-scale squeezing deformation. (3) The roof and panel rib were in a state of shear failure with a failure depth of about 5 m. The coal pillar was entirely in a state of plastic failure. (4) A support scheme including an asymmetric anchor beam truss, roof angle anchor cable, and anchor cable combination structure was proposed. The field work confirmed that this support scheme could efficiently control the deformation and failure of the rock mass surrounding the gob-side entry. This study provides the theoretical basis and technical support for the control of rocks surrounding the gob-side entry in similar conditions