An untraceable electronic money system is proposed in this paper.

The article makes a brief research on the "Bao" coins of the Salghurids in Fars during the Ilkhanids Period and also makes a comparison with the "Bao" coins found in Xinjiang for the purpose to find out the reasons for minting such kind of coins and in the meantime to expose the cultural significance.

From May to June,2003,a painted tomb of Jin Dynasty is discovered at Yiyang County in Luoyang,in which,some paintings,coins and brown glazed pocelain bowl are unearthed,which provides new materials for studying the ancient painted tomb.

The quality of coins was in disorder in the early years of the Song Dynasty.

Money means the universal equivalent used in history,with marks of fabrication and fixed units,including metal coins and paper money.

The management and information tracing of medical materials embedded in body;

Research and implementation of active intrusion tracing;

Research and Application of Tracing in ASP.NET;

The Checking and Tracking Circumstance about Pulmonary Tuberculosis Patients through Network-Based Reporting from non Tubercular Institutions in Zhejiang Province;

Real-time visual tracking algorithm for single moving object in clustered environment;

Eye-tracking Used for Impressive Highway Landscape Area;