In this paper, the perfect dyadic binary sequence pair with one-value dyadic correlation functions is presented. That is, the perfect dyadic binary sequence pair is a perfect discrete signal, for its dyadic relative f...In this paper, the perfect dyadic binary sequence pair with one-value dyadic correlation functions is presented. That is, the perfect dyadic binary sequence pair is a perfect discrete signal, for its dyadic relative function is δ-function. The transformation features and some existing admissibility conditions of perfect dyadic binary sequence pair are discussed, and the properties for this kind of code in Walsh transformation spectrum and weight spectrum are also analyzed. From above, It is found that the perfect dyadic binary sequence pair can easily differentiate from its dyadic shifting. So these good signals can used in engineering as synchronization code, multi-user code and so on.展开更多
The tripe gene block(TGB)genes of Barley stripe mosaic virus China strain(BSMV-CH)were amplified from cDNA of BSMV-CH RNAβ(GenBank accession No:AY789694)by PCR with special primer pairs,and cloned into pMD18-T vector...The tripe gene block(TGB)genes of Barley stripe mosaic virus China strain(BSMV-CH)were amplified from cDNA of BSMV-CH RNAβ(GenBank accession No:AY789694)by PCR with special primer pairs,and cloned into pMD18-T vector for sequencing.Analysis of the sequences showed that the full length of BSMV-CH TGB1,TGB2 and TGB3 were 1 539,396 and 468 bp,with deduced 512,131 and 155 amino acids,respectively.BSMV-CH TGB1 shared 94.1%-95.4% nucleotide identities and 91.0%-94.5% amino acid identities with that of other BSMV strains,BSMV-CH TGB2 shared 96.5%-97.2% nucleotide identities and 98.5%-99.2% amino acid identities with that of other BSMV strains,and BSMV-CH TGB3 shared 95.7%-96.6% nucleotide identities and 94.2%-96.8% amino acid identities with that of other BSMV strains.Phylogenetic tree based on the amino acid of Hordeiviruses TGB genes showed that BSMV-CH was relatively closed to CV17 in genetic relationship.Therefore,BSMV-CH was deduced to be a recombined strain of CV17 and CV42.展开更多
基金Supported by the National Natural Science Foundation of China (No.60372097)Beijing Municipal Natural Science Foundation (No.4052021)University IT Re-search Center Project (INHA UWB-ITRC), Korea.
文摘In this paper, the perfect dyadic binary sequence pair with one-value dyadic correlation functions is presented. That is, the perfect dyadic binary sequence pair is a perfect discrete signal, for its dyadic relative function is δ-function. The transformation features and some existing admissibility conditions of perfect dyadic binary sequence pair are discussed, and the properties for this kind of code in Walsh transformation spectrum and weight spectrum are also analyzed. From above, It is found that the perfect dyadic binary sequence pair can easily differentiate from its dyadic shifting. So these good signals can used in engineering as synchronization code, multi-user code and so on.
文摘The tripe gene block(TGB)genes of Barley stripe mosaic virus China strain(BSMV-CH)were amplified from cDNA of BSMV-CH RNAβ(GenBank accession No:AY789694)by PCR with special primer pairs,and cloned into pMD18-T vector for sequencing.Analysis of the sequences showed that the full length of BSMV-CH TGB1,TGB2 and TGB3 were 1 539,396 and 468 bp,with deduced 512,131 and 155 amino acids,respectively.BSMV-CH TGB1 shared 94.1%-95.4% nucleotide identities and 91.0%-94.5% amino acid identities with that of other BSMV strains,BSMV-CH TGB2 shared 96.5%-97.2% nucleotide identities and 98.5%-99.2% amino acid identities with that of other BSMV strains,and BSMV-CH TGB3 shared 95.7%-96.6% nucleotide identities and 94.2%-96.8% amino acid identities with that of other BSMV strains.Phylogenetic tree based on the amino acid of Hordeiviruses TGB genes showed that BSMV-CH was relatively closed to CV17 in genetic relationship.Therefore,BSMV-CH was deduced to be a recombined strain of CV17 and CV42.
