Context. In analyses of stellar spectra and colours, and for the analysis of integrated light from galaxies, a homogeneous grid of model atmospheres of late-type stars and corresponding flux spectra is needed. Aims. To construct an extensive grid of spherically symmetric models (supplemented with plane-parallel ones for the highest surface gravities) , built on up-to-date atomic and molecular d...

The microstructure and tensile failure evolution of AA5754O aluminum alloy CMT joints were investigated in this study. First, the properties observed using a hardness test metallographic test. studied situ CT tests. defects heat-affected zone mainly composed pores with large sphericity. softening was due to decrease effective bearing area increase number defects. There shrinkage sphericity less...

We report construction of monodisperse PAMAM-type dendrimers based on a dodecahydroxy closo-dodecaborane scaffold. The ideal sphericity and high functional group density of the icosahedral core permits ready access to hybrid dendrimers (dendritic closomers) having rigid, uniformly shaped exterior surfaces.