The influence of the lithology and depth on water recharge of wells in two Moroccan Atlantic coastal regions by using solid state nuclear track detectors and radon as a natural tracer

Uranium and thorium contents as well as radon and thoron -activity concentrations were evaluated inside different underground water samples by using a method based on calculating the CR-39 and LR-115 type II solid state nuclear track detectors (SSNTDs) detection efficiencies for the emitted -particles and measuring the resulting track density rates. The validity of the SSNTD technique utilized was checked by analysing uranium nitrate standard solutions. A relationship between water radon concentration and recharge of wells dug in two Moroccan Atlantic coastal regions, for a given lithology, was found. The influence of the lithology and depth on radon concentration and salinity of well waters studied was investigated.     

Existence Results for Doubly Nonlinear Parabolic Equations with Two Lower-Order Terms and L1-Data

Ukrainian Mathematical Journal - We study the existence of a renormalized solution for a class of nonlinear parabolic equations with two lower-order terms and L1-data.     

Regularizing effects of some lower order terms in non-uniformly nonlinear elliptic equations

We consider the Dirichlet problem for a class of strongly nonlinear elliptic equations with degenerate coercivity and data in divergence form. We show that some lower order terms have regularizing effects on solutions.     

Strongly nonlinear elliptic boundary value problems in Musielak–Orlicz spaces

Monatshefte für Mathematik - In this paper we prove an existence result of solutions for some strongly nonlinear elliptic problems with lower order term and $$L^1$$ -data in...