vsn

The simulation results show POR outperforms traditional DTN routing protocols in VSN .

实验结果表明，在车载传感器网络中POR协议的性能优于传统DTN路由协议。

We need to design effective DTN routing protocol when deploying delay-tolerant applications in VSN .

在车载传感器网络中部署具有容迟特点（Delay-Tolerant）的应用时，需设计有效的DTN路由协议。

Compared with traditional WSN , VSN has its own characteristics , such as no energy constraints , high node density , dynamic network topology and passive coverage .

与此同时，车载传感器网络也有其自身的特点，例如能量不受限、节点密度高、网络动态变化、被动覆盖等。

As a new paradigm of Wireless Sensor Networks ( WSN ), Vehicular Sensor Network ( VSN ) attracted more and more attention from industry and academy .

作为一种新兴的无线传感器网络，车载传感器网络（VehicularSensorNetworks）日益成为学术界及工业界关注的重点。

The occlusion variable is calculated and updated with calibration information in VSN . A dynamic threshold is introduced to calculate and update the occlusion variable , because the size in image plane is different with different object locations .

利用视觉传感器网络的标定信息和目标信息进行遮挡变量的计算，针对目标在公共平面不同位置的尺寸不同，提出动态阈值的方法进行遮挡变量的判断和更新。

First-principle Calculation ( by VASP ) indicates that the yellow luminescence derives from the Sn vacancy ( VSn ) . Solvent-thermal method is in a critical condition , can occur under the normal conditions the reaction can not be achieved , and can generate metastable state structure of materials .

第一性原理计算表明所激发的黄光发射来自于锡空位（Vsn）。溶剂热法中有机溶剂处于临界状态下，能够发生通常条件下无法实现的反应，并能生成具有介稳态结构的材料。