The main goal of the PerfLoc project is to facilitate the development of the best possible smartphone indoor localization apps. An extensive repository of annotated smartphone sensor and RF signal strength data to enable researchers to develop smartphone indoor localization apps.
Catafalque of Krzysztof OpaliÅski, 17th century. A catafalque is a raised bier, box, or similar platform, often movable, that is used to support the casket, coffin, or body of the deceased during a funeral or memorial service.
Triquetra (Triqueta, Trinity Knot) The triquetra (sometimes, triqueta) is a tripartate symbol composed of three interlocked vesica pisces, marking the intersection of three circles. The triqueta symbol predates Christianity and was likely a Celtic symbol of the Goddess, and in the North, a symbol of the god Odin.