A method is provided for forming a uniform light emitting medium layer by a relief printing method without occurrence of printing defects. The shelter includes a unitary solid enclosure having entry means and an open bottom, the enclosure made of material having sufficient strength to withstand tornado- and hurricane-force weather, such as poured concrete. The first access grant time interval is applied when the device requests access to the telecommunications infrastructure via a first network node of the telecommunications infrastructure. In response to detection of the reparse point conflict, the reparse point conflict is resolved. The computer is capable of reading data measured from the power meter and the multimeter and calculating a conversion efficiency of the power supply unit.