This paper discusses how to understand digital resources construction in library from the follow aspects:digital resources obtainment,virtual resources construction,special database,special website,sharing and service,etc.

In this paper, the encryption process of SMS4 algorithm is briefly introduced, the orthomorphic character and the correctness of encryption and decryption of improved algorithm are validated in detail, the paper also compared improved algorithm with SMS4 Algorithm in security and occupancy of resources.

Design and implementation of virtual equipment and simulation system based on Java;

The research on virtual equipment and simulating system for microwave technique experiment is presented in this paper The necessity for virtual equipment and the simulating system is discussed The modeling of mathematics and basic means of achievement for virtual experiment are introduce

On virtual beer bottling production line is studied, on the large-scale virtual equipment and bottling production line is researched from the aspects of construction process and mold.

Approach for modeling virtual device library in VLAB;

Application and implementation of Linux virtual device in EPON system;

Meanwhile, introduce concept ofvirtual device logic to realize macro-decoupling of logic conceptand micro-decoupling of soft module, extensibility and stabilityof software are highly increased.