As an outstanding asymmetric cryptography, RSA algorithm has a lot of virtues and thus is well applied in the scope of IC card applications. The paper deals with the application of RSA in smart cards and the approach ...As an outstanding asymmetric cryptography, RSA algorithm has a lot of virtues and thus is well applied in the scope of IC card applications. The paper deals with the application of RSA in smart cards and the approach in which the modular exponentiation of huge number is simplified by using the Chinese Remainder Theorem. We have already succeeded in completing RSA in IC cards. Results indicate that RSA algorithm applied in IC cards has the equivalent speed of DES algorithm with the same environment.展开更多
Microbial phosphorus(P)turnover is critical in C utilization efficiency in agroecosystems.It is therefore necessary to understand the P mobilization processes occurring during P fertilization in order to ensure both c...Microbial phosphorus(P)turnover is critical in C utilization efficiency in agroecosystems.It is therefore necessary to understand the P mobilization processes occurring during P fertilization in order to ensure both crop yield and environmental quality.Here,we established a controlled pot experiment containing soil amended with three different levels of starter P fertilizer and collected soil samples after 30,60,and 90 days of incubation.Quantitative microbial element cycling(QMEC)smart chip technology and 16S rRNA gene sequencing were used to investigate functional gene structures involved in carbon,nitrogen and P cycling and the bacterial community composition of the collected samples.Although P fertilization did not significantly affect the structure of the soil microbial community,some rare microbiota were changed in particular phosphorus-solubilizing bacteria were enriched at the high P fertilization level,suggesting that the rare taxa make an important contribution to P turnover.P fertilization also altered the functional gene structure,and high P concentrations enhanced the functional gene diversity and abundance.Partial redundancy analysis further revealed that changes in rare taxa and functional genes of soil microorganisms drive the alteration of soil P pools.These findings extend our understanding of the microbial mechanisms of P turnover.展开更多
文摘As an outstanding asymmetric cryptography, RSA algorithm has a lot of virtues and thus is well applied in the scope of IC card applications. The paper deals with the application of RSA in smart cards and the approach in which the modular exponentiation of huge number is simplified by using the Chinese Remainder Theorem. We have already succeeded in completing RSA in IC cards. Results indicate that RSA algorithm applied in IC cards has the equivalent speed of DES algorithm with the same environment.
基金This work was supported by the National Key Research and Development Program of China(No.2017YFD0200201)the Natural Science Foundation of China(No.21922608)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB15020402).
文摘Microbial phosphorus(P)turnover is critical in C utilization efficiency in agroecosystems.It is therefore necessary to understand the P mobilization processes occurring during P fertilization in order to ensure both crop yield and environmental quality.Here,we established a controlled pot experiment containing soil amended with three different levels of starter P fertilizer and collected soil samples after 30,60,and 90 days of incubation.Quantitative microbial element cycling(QMEC)smart chip technology and 16S rRNA gene sequencing were used to investigate functional gene structures involved in carbon,nitrogen and P cycling and the bacterial community composition of the collected samples.Although P fertilization did not significantly affect the structure of the soil microbial community,some rare microbiota were changed in particular phosphorus-solubilizing bacteria were enriched at the high P fertilization level,suggesting that the rare taxa make an important contribution to P turnover.P fertilization also altered the functional gene structure,and high P concentrations enhanced the functional gene diversity and abundance.Partial redundancy analysis further revealed that changes in rare taxa and functional genes of soil microorganisms drive the alteration of soil P pools.These findings extend our understanding of the microbial mechanisms of P turnover.
