Abstract: A computer-implemented method of extending a mixed sheet within a B-rep model is described. The mixed sheet includes surfaces having different geometries, such as a mesh positioned between first and second classical geometry surfaces. A first guide curve is defined, located at the boundary of a first surface for a length corresponding to the desired mixed sheet extension adjacent the first surface. A second guide curve may also be defined, located at the boundary of a second surface for a length corresponding to the desired mixed sheet extension adjacent the second surface. At least one extension mesh rung is created by generating facets between the two external mesh vertices using first and second extension vectors, wherein the first extension vector has a pre-determined spatial relationship to the first guide curve. If included, the second extension vector has a pre-determined spatial relationship to the second guide curve.

Abstract: A chemical, biological, radiological and nuclear (CBRN) hazard detecting system. In one embodiment, the CBRN hazard detecting system includes a plurality of sensors, a plurality of acoustic sensors, one or more weather sensors and a level 3 fusion engine. The level 3 fusion engine is in communication with the plurality of CBRN sensors, the plurality of acoustic sensors and the one or more weather sensors. Moreover, the level 3 fusion engine is adapted to detect and track CBRN hazards based in part on data received from the CBRN sensors, the acoustic sensors, the one or more weather sensors and predictive hazard models.

Abstract: A scatter-gather list is used to control the transfer of a buffer of data of length L from a first memory to a second memory, such that a pad of length P is inserted after each of successive portions of length S of the data are transferred.