a fundamental topic in computational fluid dynamics is the role of coordinate particularly for searching optimized coordinates. the objective of this study is the numerical modeling of supersonic flows using a new coordinate system i.e. unified coordinate system (ucs) uses moving mesh with motionless viewing window technique. ucs has an advantage over traditional coordinate systems (eulerian an...

in this paper, a new method for determining position and orientation of a coordinate system using its image is presented. this coordinate system is a three dimensional non-orthogonal system in respect to the two dimensional and orthogonal camera coordinate system.  in real world, it’s exactly easy to select three directions on an object so that they don’t be orthogonal and on a plane. the image...

The hardware and software designs need a clear, consistent and universally accepted definition of the coordinate system for the LAT. This note specifies the global LAT instrument coordinate system; the terminology, numbering, and orientation of detector planes in the TKR and CAL; and tower numbering, the local tower coordinate systems, and detector element numbering within a tower. The conventi...