An efficient measurement methodology is proposed to construct the scattering parameters of a multi-port device using a four-port vector network analyzer (VNA) without the external un-terminated ports. By using the four-port VNA, the reflected waves from the un-terminated ports could be minimized. The proposed method significantly enhances the accuracy of the S-parameters with less number of mea...

This paper concerns the reconstruction of the absorption and scattering parameters in a time-dependent linear transport equation from full knowledge of the albedo operator at the boundary of a bounded domain of interest. We present optimal stability results on the reconstruction of the absorption and scattering parameters for a given error in the measured albedo operator.

background: several factors influence on the outcome  of ischemic stroke. the aim of this study was determination the relationship  between stroke mortality and red blood cell parameters. methods: this cross-sectional  study was conducted  from 2011 july to june 2012. for all patients with ischemic stroke in middle  cerebral  artery  (mca)  territory, the  cell blood count test was performed. w...

seventy six high and low producer cows were selected to determine the composition of theblood and milk parameters, and their interrelationships to determine the indices which could beuseful to improve the milk yield. the highest mean blood concentrations were found in highproducer cows. mean values for blood urea nitrogen (bun), serum protein (sptn), creatinine,triglycerides (tgs), cholesterol,...