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Edge Caching in Blockchain Empowered 6G

China Communications 2021年第1期18卷 1-17页

作者： Wen Sun Sheng Li Yan Zhang School of Cybersecurity Northwestern Polytechnical UniversityXi’an 710072China School of Cyber Engineering Xidian UniversityXi’an 710071China University of Oslo Oslo 0316Norway

The sixth generation(6G)of wireless cellular networks is expected to incorporate the latest developments in network infrastructure and emerging advances in *** the age of 6G,edge caching technology will evolve towards intelligence,dynamics,and ***,the security problems of edge caching,including data tampering and eavesdropping,are seldomly considered in most *** this paper,we consider the two-hop edge caching where the blockchain and physical layer security technologies are adopted to prevent data from being tampered with and *** design blockchain-based framework to guarantee the reliability of important data such as the frequency of contents and jointly optimize content caching probability and redundancy rate to maximize the secure transmission *** simulation shows that our optimization scheme can significantly improve the secure transmission probability of edge cache network,whether facing the threat of independent eavesdropping or joint eavesdropping.

关键词： blockchain 6G edge caching physical layer security

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双差定位法在地震丛集精确定位中的应用

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地球物理学进展 2007年第1期22卷 137-141页

作者：刘劲松 Kin-Yip Chun Gary A.Henderson 刘福田郝天珧中国科学院地质与地球物理研究所北京100029 同济大学海洋与地球科学学院上海200092 加拿大多伦多大学物理系地震学实验室

应用双差定位方法(hypodd)对北美Loma Prieta地区的分属于3个地震丛集的47个地震进行了精确定位.采用交叉谱法精确求取信号的走时差;同时采用人机联做方式在时域调整、修正按自动方式无法准确提取时差的信号,确保每个事件对的走时差精度... 详细信息

应用双差定位方法(hypodd)对北美Loma Prieta地区的分属于3个地震丛集的47个地震进行了精确定位.采用交叉谱法精确求取信号的走时差;同时采用人机联做方式在时域调整、修正按自动方式无法准确提取时差的信号,确保每个事件对的走时差精度.重定位后,在几百米的范围内,原来相互重叠的震源位置聚集为三个明显分离的丛集;水平方向的相对位置平均误差为8.5米,震源深度方向的平均误差为23.4 m.

关键词：地震定位双差定位法地震丛集交叉谱

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Chromosome-scale assembly and evolution of the tetraploid Salvia splendens (Lamiaceae) genome

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Horticulture Research 2021年第1期8卷 2721-2735页

作者： Kai-Hua Jia Hui Liu Ren-Gang Zhang Jie Xu Shan-Shan Zhou Si-Qian Jiao Xue-Mei Yan Xue-Chan Tian Tian-Le Shi Hang Luo Zhi-Chao Li Yu-Tao Bao Shuai Nie Jing-Fang Guo Ilga Porth Yousry AEl-Kassaby Xiao-Ru Wang Charles Chen Yves Van de Peer Wei Zhao Jian-Feng Mao Beijing Advanced Innovation Center for Tree Breeding by Molecular Design National Engineering Laboratory for Tree BreedingKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental PlantsMinistry of EducationCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083China Ori(Shandong)Gene Science and Technology Co. LtdWeifang 261000 ShandongChina Department des Sciences du Bois et de la Foret Facultede Foresteriede Geographie et GeomatiqueUniversite LavalQuebec CityQC G1V 0A6Canada Department of Forest and Conservation Sciences Faculty of ForestryUniversity of British ColumbiaVancouverBC V6T 1Z4Canada Department of Ecology and Environmental Science UmeåPlant Science CentreUmeåUniversitySE-90187 UmeåSweden Department of Biochemistry and Molecular Biology 246 Noble Research CenterOklahoma State UniversityStillwaterOKUSA Department of Plant Biotechnology and Bioinformatics Ghent UniversityGhentBelgium VIB Center for Plant Systems Biology 9052 GhentBelgium Centre for Microbial Ecology and Genomics Department of BiochemistryGenetics and Microbiology GeneticsUniversity of PretoriaPrivate Bag X20Pretoria 0028South Africa College of Horticulture Academy for Advanced Interdisciplinary StudiesNanjing Agricultural UniversityNanjing 210095China

Polyploidization plays a key role in plant evolution,but the forces driving the fate of homoeologs in polyploid genomes,i.e.,paralogs resulting from a whole-genome duplication(WGD)event,remain to be ***,we present a chromosome-scale genome assembly of tetraploid scarlet sage(Salvia splendens),one of the most diverse ornamental *** found evidence for three WGD events following an older WGD event shared by most eudicots(theγevent).A comprehensive,spatiotemporal,genome-wide analysis of homoeologs from the most recent WGD unveiled expression asymmetries,which could be associated with genomic rearrangements,transposable element proximity discrepancies,coding sequence variation,selection pressure,and transcription factor binding site *** observed differences between homoeologs may reflect the first step toward sub-and/or *** assembly provides a powerful tool for understanding WGD and gene and genome evolution and is useful in developing functional genomics and genetic engineering strategies for scarlet sage and other Lamiaceae species.

关键词： species evolution assembly

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Haplotype-resolved genome assembly and allele- specific gene expression in cultivated ginger

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Horticulture Research 2021年第1期8卷 2531-2545页

作者： Shi-Ping Cheng Kai-Hua Jia Hui Liu Ren-Gang Zhang Zhi-Chao Li Shan-Shan Zhou Tian-Le Shi Ai-Chu Ma Cong-Wen Yu Chan Gao Guang-Lei Cao Wei Zhao Shuai Nie Jing-Fang Guo Si-Qian Jiao Xue-Chan Tian Xue-Mei Yan Yu-Tao Bao Quan-Zheng Yun Xin-Zhu Wang Ilga Porth Yousry AEl-Kassaby Xiao-Ru Wang Zhen Li Yves Van de Peer Jian-Feng Mao Pingdingshan University Henan Province Key Laboratory of Germplasm Innovation and Utilization of Eco-economic Woody PlantPingdingshan 467000 HenanChina Beijing Advanced Innovation Center for Tree Breeding by Molecular Design National Engineering Laboratory for Tree BreedingKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental PlantsMinistry of EducationCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083China Ori(Shandong)Gene Science and Technology Co. LtdWeifang 261000 ShandongChina Pingdingshan Academy of Agricultural Sciences Pingdingshan 467000 HenanChina Department of Ecology and Environmental Science UPSCUmea UniversityUmeaSweden Departement des Sciences du Bois et de la Foret Facultede Foresteriede Geographie et GéomatiqueUniversite Laval QuebecQuebecQC G1V 0A6Canada Department of Forest and Conservation Sciences Faculty of ForestryUniversity of British ColumbiaVancouverBC V6T 1Z4Canada Department of Plant Biotechnology and Bioinformatics Ghent UniversityGhentBelgium VIB Center for Plant Systems Biology 9052 GhentBelgium Centre for Microbial Ecology and Genomics Department of BiochemistryGenetics and Microbiology GeneticsUniversity of PretoriaPrivate Bag X20Pretoria 0028South Africa College of Horticulture Academy for Advanced Interdisciplinary StudiesNanjing Agricultural UniversityNanjing 210095China

Ginger(Zingiber officinale)is one of the most valued spice plants worldwide;it is prized for its culinary and folk medicinal applications and is therefore of high economic and cultural ***,we present a haplotype-resolved,chromosome-scale assembly for diploid ginger anchored to 11 pseudochromosome pairs with a total length of 3.1 *** structural variation was identified between haplotypes,and two inversions larger than 15Mb on chromosome 4 may be associated with ginger *** performed a comprehensive,spatiotemporal,genome-wide analysis of allelic expression patterns,revealing that most alleles are coordinately *** alleles that exhibited the largest differences in expression showed closer proximity to transposable elements,greater coding sequence divergence,more relaxed selection pressure,and more transcription factor binding site *** also predicted the transcription factors potentially regulating 6-gingerol *** allele-aware assembly provides a powerful platform for future functional genomics,molecular breeding,and genome editing in ginger.

关键词： resolved closer breeding

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