In this study the basic engineering principles, goals and constraints are all combined to fuzzy methodology and applied to design optimally sandwich panel circular plate roofs for large vessels. These panels are made up of two stiff, strong veneer skins separated by vertical and peripheral stiffener plates. Advantages are high strength and lightweight and sustainability. In the present approach...

This article deals with prehistoric stone objects called ‘thunderstones,’ which in the Middle Ages through modern times wereoften placed at border points of houses and farm buildings (e.g., roofs, chimneys, walls, thresholds), as well town walls other defence walls. It should be assumed that they were used a magical means to protect areas considered controlled by humans (orbis interior) from th...

It has been proven that roof runoff water plays an important role in the high metallic concentration levels in urban rainwater since metallic elements are generated by corrosion of roof materials before being swept away by rainwater. The aim of TOITEAU project is therefore to model this phenomenon, evaluating the metallic flows from roofs in rainwater. To achieve this goal, an important work ha...

Here, the abundance of macro-invertebrates (Arthropoda and Gastropoda) eight green roofs their adjacent ground level habitats in city Antwerp, Belgium, is compared. All higher-level taxa found were present both types without significant differences overall between habitats. However, we abundances two habitats, when specific Beetles (Coleoptera), isopods (Isopoda) bees (Anthophila) more abundant...