Abstract Recent advances in remote sensing techniques and computer algorithms allow accurate, abundant, high-resolution geometric information retrieval for rock mass characterization from 3D point clouds. The automatic application of the extracted local scale rockfall susceptibility assessment, where discontinuities characteristics play a major role rocky slope stability, requires step by logic...

The traditional least squares method for the retrieval of CO2 emissions from emission sources is affected by nonlinear characteristics Gaussian plume model, which leads to optimal estimation easily falling into local minima. In this study, ACA–IPFM (ant colony algorithm and interior point penalty function) proposed remedy shortcomings method, makes full use global search property ant exact capa...

We analyze the problem of resolving two point-sources in case mutually coherent sources with arbitrary quantum statistics, mutual phase, relative and absolute intensity. use a sensitivity measure based on method moments compare direct imaging spatial mode demultiplexing, analytically proving advantage latter. show that demultiplexing saturates Fisher information, for all known cases, even non-G...