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GPRS全称通用分组无线业务,它在改进了现有GSM系统后能实现高速的数据传输。首先对GPRS系统做了简单介绍,然后在此基础上详细介绍了GPRS的板间切换在CPX8216硬件平台上的实现方法。 相似文献
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Justyna Cybulska Els Vanstreels Quang Tri Ho Christophe M. Courtin Valerie Van Craeyveld Bart Nicolaï Artur Zdunek Krystyna Konstankiewicz 《Journal of food engineering》2010
Artificial plant cell walls were produced from bacterial cellulose and cell wall constituents. The artificial cell walls were stored at low, medium and high relative humidity, and then subjected to micro-mechanical tests. From chemical composition and microstructure analysis it was found that, among all artificial cell wall materials produced, the most representative analogue of natural apple cell wall was based on bacterial cellulose supplemented with xyloglucan and pectin. Uniaxial tensile tests revealed that the different cell wall materials differed in their mechanical properties; increasing the humidity during storage resulted in a decrease in the value of the secant modulus. The cell wall model material obtained may be used for the simulation of the effect of external factors on the physical and chemical properties of cell walls. 相似文献
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许多关键业务应用要求系统能够持续稳定地运行以便为用户提供不问断的服务。高可用系统通过配置冗余硬件和故障监控处理软件,可以大幅度地提高系统的可用性。本文设计实现了一个基于Motorola CPX8216和HA-Linux的电信高可用应用软件。实验证明该软件能够自动检测系统控制节点和服务进程的错误、失效,并且当发生这种情况时能够自动将系统控制和服务切换到备用节点。文中最后指出了需要进一步研究的问题。 相似文献
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