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Design and Implementation of Secure and Reliable Information Interaction Architecture for Digital Twins
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作者 Qian Wang wanwan wu +3 位作者 Liping Qian Yiming Cai Jiang Qian Limin Meng 《China Communications》 SCIE CSCD 2023年第2期79-93,共15页
In order to improve the comprehensive defense capability of data security in digital twins(DTs),an information security interaction architecture is proposed in this paper to solve the inadequacy of data protection and... In order to improve the comprehensive defense capability of data security in digital twins(DTs),an information security interaction architecture is proposed in this paper to solve the inadequacy of data protection and transmission mechanism at present.Firstly,based on the advanced encryption standard(AES)encryption,we use the keystore to expand the traditional key,and use the digital pointer to avoid the key transmission in a wireless channel.Secondly,the identity authentication technology is adopted to ensure the data integrity,and an automatic retransmission mechanism is added for the endogenous properties of the wireless channel.Finally,the software defined radio(SDR)platform composed of universal software radio peripheral(USRP)and GNU radio is used to simulate the data interaction between the physical entity and the virtual entity.The numerical results show that the DTs architecture can guarantee the encrypted data transmitted completely and decrypted accurately with high efficiency and reliability,thus providing a basis for intelligent and secure information interaction for DTs in the future. 展开更多
关键词 digital twins AES encryption digital pointer identity authentication automatic retransmission SDR
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单个氮化碳纳米片电化学发光成像监测细胞分泌铜离子 被引量:3
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作者 马诚 吴婉婉 朱俊杰 《中国科学:化学》 CAS CSCD 北大核心 2020年第5期631-638,共8页
单细胞显微成像技术已经逐渐成为生物学中不可缺少的基础诊断工具.电化学发光(ECL)显微成像技术具有无需激发光源、零光学背景和响应速度快等优点,因此在单细胞分析中具有很大的优势.我们开发了基于石墨相氮化碳纳米片的ECL显微成像传... 单细胞显微成像技术已经逐渐成为生物学中不可缺少的基础诊断工具.电化学发光(ECL)显微成像技术具有无需激发光源、零光学背景和响应速度快等优点,因此在单细胞分析中具有很大的优势.我们开发了基于石墨相氮化碳纳米片的ECL显微成像传感平台,用于实时监测单细胞分泌铜离子的含量.体外实验发现纳米片的ECL强度对铜离子具有良好的线性响应和选择性.细胞实验也同样证明了在细胞体系中,细胞周围的纳米片能够作为ECL探针用于监测细胞分泌铜离子的过程.这项单颗粒ECL成像技术有望用于进一步监测其他细胞分泌物. 展开更多
关键词 电化学发光 铜离子 石墨相氮化碳纳米片 显微成像 单细胞
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