The definition of good codes for error-detection is given. It is proved that a (n, k) linear block code in GF(q) are the good code for error-detection, if and only if its dual code is also. A series of new results abo...The definition of good codes for error-detection is given. It is proved that a (n, k) linear block code in GF(q) are the good code for error-detection, if and only if its dual code is also. A series of new results about the good codes for error-detection are derived. New lower bounds for undetected error probabilities are obtained, which are relative to n and k only, and not the weight structure of the codes.展开更多
The self-orthogonal condition is analyzed with respect to symplectic inner product for the binary code that generated by [B1 I B2 B3],where Bi are the binary n ×n matrices,I is an identity matrix.By the use of th...The self-orthogonal condition is analyzed with respect to symplectic inner product for the binary code that generated by [B1 I B2 B3],where Bi are the binary n ×n matrices,I is an identity matrix.By the use of the binary codes that generated by [B1 I B2 B2B1^T],asymptotic good[[2n ,n ]]additive quantum codes are obtained.展开更多
针对茶产业质量安全问题,在探讨良好农业规范GAP的基础上,研究设计茶叶GAP关键控制点和生产过程条码化管理方法,利用Visual C#.NET面向对象编程技术和SQL Server 2005关系型数据库技术,采用二维码(QR code)标识方法,开发了茶叶质量溯源...针对茶产业质量安全问题,在探讨良好农业规范GAP的基础上,研究设计茶叶GAP关键控制点和生产过程条码化管理方法,利用Visual C#.NET面向对象编程技术和SQL Server 2005关系型数据库技术,采用二维码(QR code)标识方法,开发了茶叶质量溯源管理客户端软件和茶叶二维码溯源查询系统。应用表明,该系统实现了茶叶企业根据GAP种植规程指导茶农进行规范化生产,为确保茶叶质量安全生产提供一种有效手段,同时为政府监管提供溯源依据。展开更多
文摘The definition of good codes for error-detection is given. It is proved that a (n, k) linear block code in GF(q) are the good code for error-detection, if and only if its dual code is also. A series of new results about the good codes for error-detection are derived. New lower bounds for undetected error probabilities are obtained, which are relative to n and k only, and not the weight structure of the codes.
文摘The self-orthogonal condition is analyzed with respect to symplectic inner product for the binary code that generated by [B1 I B2 B3],where Bi are the binary n ×n matrices,I is an identity matrix.By the use of the binary codes that generated by [B1 I B2 B2B1^T],asymptotic good[[2n ,n ]]additive quantum codes are obtained.
文摘针对茶产业质量安全问题,在探讨良好农业规范GAP的基础上,研究设计茶叶GAP关键控制点和生产过程条码化管理方法,利用Visual C#.NET面向对象编程技术和SQL Server 2005关系型数据库技术,采用二维码(QR code)标识方法,开发了茶叶质量溯源管理客户端软件和茶叶二维码溯源查询系统。应用表明,该系统实现了茶叶企业根据GAP种植规程指导茶农进行规范化生产,为确保茶叶质量安全生产提供一种有效手段,同时为政府监管提供溯源依据。
