Cooperative dynamics of loyal customers in queueing networks

We consider queueing networks （QN＇s） with feedback loops roamed by ＂intelligent＂ agents, able to select their routing on the basis of their measured waiting times at the QN nodes. This is an idealized model to discuss the dynamics of customers who stay loyal to a service supplier, provided their service time remains below a critical threshold. For these QN＇s, we show that the traffic flows may exhibit collective patterns typically encountered in multi-agent systems. In simple network topologies, the emergent cooperative behaviors manifest themselves via stable macroscopic temporal oscillations, synchronization of the queue contents and stabilization by noise phenomena. For a wide range of control parameters, the underlying presence of the law of large numbers enables us to use deterministic evolution laws to analytically characterize the cooperative evolution of our multi-agent systems. In particular, we study the case where the servers are sporadically subject, to failures altering their ordinary behavior.     

现代儒商及其仁义之道

“儒商”是现代商业社会中一个时髦的称呼 ,它是现代经济与传统儒学相结合的产物。该文挖掘了传统儒学的文化资源 ,并对现代“儒商”的管理精神赋予了新的诠释 ,使之更加适应现代社会的需要     

电力零售市场中的惠卖定价竞争--基于多类型用户和差异化转换成本

引入忠实用户和活跃用户差异化转换成本, 拓展了非对称双寡头惠卖定价模型, 分析了在位售电商区域融合过程中优惠转换用户策略. 单期模型中, 区域分割和惠卖定价导致电价区域差别. 对转换用户的优惠价格与对方区域忠实、活跃用户份额及转换成本分布相关. 与统一定价竞争比较, 小公司活跃用户较少大公司活跃用户较多时, 小公司惠卖定价利润上升, 消费者剩余减少. 多期模型中, 活跃用户形成区域融合, 总市场份额趋近相等, 定价的长期趋势与活跃用户无关. 忠实用户多的公司对老用户定价比竞争对手更高, 对新用户优惠程度更大.     

青海省称多县野生狐狸棘球绦虫CO Ⅰ基因多态性分析

为进一步了解野生狐狸在棘球属绦虫感染传播的情况,搜集并解剖野生狐狸6只,对搜集的其中4株多房棘球绦虫、2株石渠棘球绦虫的线粒体DNA（mtDNA）细胞色素氧化酶第1亚基（COⅠ）基因进行同源性分析.结果显示：6只野生狐狸中有2只感染多房棘球绦虫,感染强度分别为1640和839,1只感染石渠棘球绦虫,感染强度为833;线粒体DNA CO Ⅰ基因扩增得到了363 bp的目标片段,其中4株多房棘球绦虫与GenBank中检索到的基因序列（AB461417）一致性达到100％,2株石渠棘球绦虫的mtDNA CO Ⅰ基因序列与GenBank中检索到的基因序列（AB159136）一致性达到99.2％,有3处碱基置换位点.称多县野生狐狸肠道内寄生着棘球属绦虫,对其防控研究应该引起重视.