Mg isotope compositions of some typical geological standard samples measured by the DS method and the SSB method in different laboratories. The sample-standard-bracketing (SSB) method and double-spike ...

This is a preview. Log in through your library . Abstract A method is considered for the integration in time of a partial integro-differential equation. The ...

This is a preview. Log in through your library . Abstract The paper deals with a numerical method for solving nonlinear integro-parabolic problems of Fredholm type. A monotone iterative method, based ...