Analyzer system intended to visualize the sound signal in the time and frequency domain is presented. The system was realized in Matlab and it can process sound signals of wav files. Spectral analyzer takes into account the perception of the sound by humans and thus the magnitude spectrum can be visualized with frequency axis in Barks end ERBs. Spectrum can be weighted by the transfer function ...

Abstract Objective To explore the advantages of urinary matrix metalloproteinase-7 (MMP-7) in evaluating renal tubular injury minimal change disease (MCD) and focal segmental glomerulosclerosis (FSGS) patients compared with cystatin C (CysC) retinol binding protein (RBP). Methods Serum urine samples were collected from 20 healthy volunteers, 40 MCD FSGS patients. MMP-7 levels measured by enzyme...