A computing device and a method measures scattering parameters values at ports of a circuit at different signal frequencies, and creates a non-common-pole rational function of S-parameters by applying a vector fitting algorithm to the S-parameters. The cameras simultaneously obtain images from a plurality of spectral bands covering strong transitions of N2 molecule created by the radioactive source and at least one spectral band containing very little transition strength. The invention includes, in one aspect, a series of devices comprising surgical instruments including rotatable shafts, and surgical components drivable by the shafts that can be utilized for contact with tissue in a surgical operating field. A method of biomass torrefaction is also provided. 11 hotspots, Radio Data System transmitters, or the like, and using one or more of these sources to determine a current position that can be associated with a recording, such as a digital camera photo or other digital recording, conventional camera photo, or other recording. A method for performing data transfer implemented in a computer system comprises transmitting a request for data, receiving a response to the request for data comprising a portion of the requested data and an indication that additional data is available, and transmitting a request for additional data.