Photovoltaic mounting system Photovoltaic mounting system Photovoltaic mounting systems (also called solar module racking) are used to fix solar panels on surfaces like roofs, building facades, or the ground. These mounting systems generally enable retrofitting of solar panels on roofs or as part of the structure of the building (called BIPV). The solar array of a PV system can be mounted on rooftops, generally with a few inches gap and parallel to the surface of the roof. If the rooftop is horizontal, the array is mounted with each panel aligned at an angle. If the panels are planned to be mounted before the
Serial module turns out that a serial ring "R" is a finite direct sum of homogeneously serial right ideals if and only if "R" is isomorphic to a full "n"x"n" matrix ring over a local serial ring. Such rings are also known as primary decomposable serial rings . Serial module In abstract algebra, a uniserial module "M" is a module over a ring "R", whose submodules are totally ordered by inclusion. This means simply that for any two submodules "N" and "N" of "M", either formula_1 or formula_2. A module is called a serial module if it is a direct sum of