86 research outputs found
On generalized sarmanov bivariate distributions
A class of bivariate distributions which generalizes the Sarmanov class is introduced. This class possesses a simple analytical form and desirable dependence properties. The admissible range for association parameter for given bivariate distributions are derived and the range for correlation coefficients are also presented.Publisher's Versio
Thermal deformation of concentrators in an axisymmetric temperature field
Axisymmetric thermal deformations of paraboloid mirrors, due to heating, are examined for a mirror with a optical axis oriented toward the Sun. A governing differential equation is derived using Mushtari-Donnel-Vlasov simplifications, and a solution is presented which makes it possible to determine the principal deformation characteristics
ON GENERALIZED SARMANOV BIVARIATE DISTRIBUTIONS
Abstract. A class of bivariate distributions which generalizes the Sarmanov class is introduced. This class possesses a simple analytical form and desirable dependence properties. The admissible range for association parameter for given bivariate distributions are derived and the range for correlation coefficients are also presented
Collision of two identical hypersonic stellar winds in binary systems
We investigate the hydrodynamics of two identical hypersonic stellar winds in
a binary system. The interaction of these winds manifests itself in the form of
two shocks and a contact surface between them. We neglect the binary rotation
and assume that the gas flow ahead of the shocks is spherically symmetrical. In
this case the contact surface that separates the gas emanated from the
different stars coincides with the midplane of the binary components. In the
shock the gas is heated and flows away nearly along the contact surface. We
find the shock shape and the hot gas parameters in the shock layer between the
shock and the contact surface.Comment: 19 pages, 3 figures, accepted for publication in Ap
On a new sample rank of an order statistics and its concomitant
The marginal and joint distributions of the new sample rank of an order statistic and its concomitant are derived.Order statistics Rank Concomitant
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