疫苗冷链网络实时监测系统的设计与实现

针对目前疫苗冷链运输信息监测严重滞后、运输过程"断链"等问题,设计与实现了一种有效便捷的疫苗冷链网络实时监测系统;该系统采用MSP430F149单片机实时获取疫苗的位置、温度以及图像信息,采用Lora以及GPRS无线传输协议传输数据,利用SQL Server存储疫苗的所有信息,Web端使用ASP.NET将所需信息展现出来。最后,通过实际应用证明了此系统的可行性与实用价值。

类生物免疫机制的网络安全架构

复杂生物的免疫系统在自然界演化了数亿年,形成了精妙的防御体系来保护生物体免受病原体的侵害。受生物免疫机制的启发,在扼要分析未来网络面临的安全挑战及其主要根源的基础上,重点阐述了生物免疫系统对网络安全的启示。文章在提出科学平衡的安全观基础上,介绍了类生物免疫机制的网络安全架构初步设计。该架构通过协同感知实现快速自适应阻断隔离,以及通过在平行伴生网络中进行对抗学习,去发现应对已知甚至未知攻击的网络疫苗,从而获得网络空间的对抗优势。

Dynamic vaccine distribution model based on epidemic diffusion rule and clustering approach

Due to the fact that the emergency medicine distribution is vital to the quick response to urgent demand when an epidemic occurs, the optimal vaccine distribution approach is explored according to the epidemic diffusion rule and different urgency degrees of affected areas with the background of the epidemic outbreak in a given region. First, the SIQR （susceptible, infected, quarantined,recovered） epidemic model with pulse vaccination is introduced to describe the epidemic diffusion rule and obtain the demanded vaccine in each pulse. Based on the SIQR model, the affected areas are clustered by using the self-organizing map （SOM） neutral network to qualify the results. Then, a dynamic vaccine distribution model is formulated, incorporating the results of clustering the affected areas with the goals of both reducing the transportation cost and decreasing the unsatisfied demand for the emergency logistics network. Numerical study with twenty affected areas and four distribution centers is carried out. The corresponding numerical results indicate that the proposed approach can make an outstanding contribution to controlling the affected areas with a relatively high degree of urgency, and the comparison results prove that the performance of the clustering method is superior to that of the non-clustering method on controlling epidemic diffusion.

发展中国家疫苗生产商网络

发展中国家疫苗生产商网络（Developing Country Vaccine Manufacturers Network，DCVMN）是一家非营利国际组织，致力于促进发展中国家疫苗生产厂家的技术交流、经验分享和共同发展，为全球公共卫生做出更大贡献。