Browse

The paper deals with the implementation of photovoltaic system in specific extraterrestrial area. It is focused on proposal of photovoltaic system for new international space station. Authors use in the analysis knowledge of NASA (National Aeronautics and Space Administration) space researches, information about of ISS (International Space Station) and proposal of first piece of new space station situated in cislunar area (space between Earth and Moon). Analysis of space deals with finding suitable location for ne...

The main goal was to define basic forms of propagation oriented at internet media and mainly for propagation oriented at social media for product entering at market. Nowadays, social media represent important marketing channel appropriate almost for every products at market. The advantage of propagation on social networks is low financing cost, what is good mainly for companies which are not so known at market. Because of that, we should consider social networks as information channel rather than means which will ...

Zeolites are solids (hydrated aluminosilicate minerals) consist of interlinked tetrahedra of alumina (AlO4) and silica (SiO4). Zeolites are minerals with three-dimensional crystal structure (open crystal structure) built from the elements previously mentioned (Al, Si, O2). They are very stable solid substances with exceptional properties пїЅ they resist of environmental conditions, they resist high pressures, they do not dissolve in water, they do not oxidize in the air. Zeolite structure пїЅ пїЅframework structur...