M. and M.   Abstract: Existence and uniqueness of solution for singular 2-D systems depends on regularity condition. Simple regularity implies regularity and under this assumption, the generalized wave model (GWM) is introduced to cast singular 2-D system of equations as a family of non-singular 1-D models with variable structure.These index dependent models, along with a set of boundary co...

Regional Frequency Analysis (RFA) relies on a wide range of physiographical and meteorological variables to estimate hydrological quantiles at ungauged sites. However, additional catchment characteristics related its drainage network are not yet fully understood integrated in RFA procedures. The aim the present paper is propose integration several characterizing systems RFA, evaluate their adde...

Few studies have examined the role of neighborhood socioeconomic condition in shaping breast cancer disparities in defined local areas. We tested associations between three measures of neighborhood socioeconomic condition (poverty, median income, and a composite neighborhood score) on breast cancer staging in two urban counties of the state of New Jersey. Data for these counties were obtained f...

the parallel systems are special important types of coherent structures and have many applications in various areas.in this paper we consider a two-exchangeable-component parallel system for the generalized farlie-gumbel-morgenstern (generalized fgm) distribution. we study the reliability properties of the residual lifetime of the system under the condition that both components of the system ar...

This paper deals with the optimization of a hydrothermal problem that considers a non-smooth Lagrangian L(t, z, z′). We consider a general case where the functions Lz′ (t, ·, ·) and Lz(t, ·, ·) are discontinuous in {(t, z, z′)/z′ = φ(t, z)}, which is the borderline point between two power generation zones. This situation arises in problems of optimization of hydrothermal systems where the therm...

Many complex systems are characterized by non-Boltzmann distribution functions of their statistical variables. If one wants to – justified or not – hold on to the maximum entropy principle for complex statistical systems (non-Boltzmann) we demonstrate how the corresponding entropy has to look like, given the form of the corresponding distribution functions. By two natural assumptions that (i) t...