A Nb.BbvCI powered DNA walking machine as signal enhancer, gold-platinum core-shell nanorods/iron-based metal-organic frameworks/polyethyleneimine-reduced graphene oxide composites ([email protected]/Fe-MOFs/PEI-rGO) electrode modification material and Zr-based frameworks-labeled oligonucleotides load with methylene blue protected]) probes has been fabricated to obtain a sensitive electrochemic...

5 Non-negative matrix factorization (NMF) has become a popular machine 6 learning approach to many problems in text mining, speech and image 7 processing, bio-informatics and seismic data analysis to name a few. In 8 NMF, a matrix of non-negative data is approximated by the low-rank 9 product of two matrices with non-negative entries. In this paper, the 10 approximation quality is measured by t...