Seafloor massive sulfide deposits form in remote environments, and the assessment of deposit size composition through drilling is technically challenging expensive. To aid evaluation resource potential seafloor deposits, three-dimensional inverse modeling geophysical field data (magnetic gravity) collected near can be carried out to further enhance geologic models interpolated from sparse drill...

double bridge girder overhead cranes are used for heavy duty applications in theindustry. in this paper a detailed parametric design optimization of the main girder of box type isperformed for a 150ton capacity and 32m long span crane, after its basic design using availabledesign rules. design optimization is performed using detailed 3d finite element analysis bychanging the number, shape and l...

We use tropical geometry to analyze finite valued mechanisms. We geometrically characterize all mechanisms on arbitrary type spaces, derive geometric and algebraic criteria for weak monotonicity, incentive compatibility and revenue equivalence. As corollaries we obtain various results known in the literature and shed new light on their nature.

The inverse scale factor, which in classical cosmological models diverges at the singularity, is quantized in isotropic models of loop quantum cosmology by using techniques which have been developed in quantum geometry for a quantization of general relativity. This procedure results in a bounded operator which is diagonalizable simultaneously with the volume operator and whose eigenvalues are d...