虚拟网络攻击下的节点选取防护策略建模（英文）

虚拟网络节点选取防护策略模型没有充分考虑节点之间相关指标的差异,造成防护策略安全性低、可信度指标简单,为此,提出一种虚拟网络攻击下节点选取防护策略模型设计方法。根据各节点关键度和可信度的不同,获取节点选取防护策略,通过节点收缩方式对节点的关键度施行计算,通过D-S证据理论对虚拟网络攻击下选取节点的可信度进行评价。分析了虚拟网络的安全需求,在此基础上,通过信任评价关键节点选取策略构建防护策略模型。实验结果表明:通过建立模型选取的节点能有效实现虚拟网络防护,用户满意度高,实用性强。

Electrohydrodynamic behaviors of droplet under a uniform direct current electric field

The electrohydrodynamic behaviors and evolution processes of silicone oil droplet in castor oil under uniform direct current(DC)electric field are visually observed based on a high-speed microscopic platform.Subsequently,the effects of different working conditions,such as electric field strength,droplet size,etc.,on droplet behaviors are roundly discussed.It can be found that there are four droplet behavior modes,including Taylor deformation,typical oblique rotation,periodic oscillation,and fracture,which change with the increase of electric field strength.It is also demonstrated that the degree of flat ellipse deformation gets larger under a stronger electric field.Moreover,both of the stronger electric field and smaller droplet size lead to an increase in the rotation angle of the droplet.