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With the rapid economic development in China, road traffic grows increasingly, makes some roads weak and the cost used in repairing roads will raise gradually. The economic feasibility of repairing roads using the recycled aggregate concrete with fly ash in whole life cycle was studied. As is shown by the results, a lot of post-production cost of repairing road can be saved and the pollution of the...
As the PKI system is widely used in e-commerce and e-government, the smart card which generates public/private key pair by itself has good prospects because of its "private key not out of card" key feature. However, when the viruses and Trojan horses are in flood, the security of smart card terminals can't always be guaranteed. Some risks may still exist in the processes of generation, replacement...
Unconventional emergencies have had a serious impact on society. This paper presented a scenario of unconventional emergencies influence firstly, and analyzed the determinant of unconventional emergencies, secondly presented the seven-dimensional model of unconventional emergencies influence, and then elaborated the life cycle of unconventional emergencies influence, finally, proposed the evolution...
ISO/IEC TR 24748-1:2010 provides information on life cycle concepts and descriptions of the purposes and outcomes of representative life cycle stages. It also illustrates the use of a life cycle model for systems in the context of ISO/IEC 15288 and provides a corresponding illustration of the use of a life cycle model for software in the context of ISO/IEC 12207. ISO/IEC TR 24748-1:2010 additionally...
Aspect-oriented software development has focused on the software life cycle's implementation phase: developers identify and capture aspects mainly in code. But aspects are evident earlier in the life cycle, such as during requirements engineering and architecture design. Early aspects are concerns that crosscut an artifact's dominant decomposition or base modules derived from the dominant separation-of-concerns...
New models of conventional and single-wafer, cluster-based fabs running 0.35 micron logic flows have been developed based almost entirely on existing equipment technology. The cluster-based fabs are an embodiment of an alternative approach to semiconductor manufacturing, which is referred to as adaptable manufacturing systems (ASMs). Relative to conventional fabs, AMSs seek to balance throughput time...
In integrated manufacturing systems, quality of cooperation between men and machines, maintenance and evolutivity of command installations depend partly on quality of communications inside enterprise. Given the automation complexity of today's factories, one needs powerful methods and tools enabling one to have a global and complete communication view at the different stages of communication life...
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