The optimal structural hierarchy was introduced into the conventional pyramidal structure by integrating homogenization-based topology optimization (HMTO) with elastically isotropic elementary lattices for further improvement of efficiency. mechanical properties and elastic isotropy representative truss–lattices composed struts plate–lattices consisting closed-cell sheets were firstly evaluated...

Hierarchical segmentation is a multi-scale analysis of an image and provides a series of simplifying nested partitions. Such a hierarchy is rarely an end by itself and requires external criteria or heuristics to solve problems of image segmentation, texture extraction and semantic image labelling. In this theoretical paper we introduce a novel framework: hierarchical cuts, to formulate optimiza...

In view of the needs for energy minimization in the buildings sector, the design of cost optimal low energy buildings (LEB) in the Mediterranean area is of significant interest. The measures available to accomplish this task include the use of latest building technology and the customization of the design (climate, owner’s needs and requirements, user behavior, etc). The goals include the minim...