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In military operation or emergency response situations, very frequently a commander will need to assemble and dynamically manage Community of Interest (COI) mobile groups to achieve a critical mission assigned despite failure, disconnection or compromise of COI members. We combine the designs of COI hierarchical management for scalability and reconfigurability with COI dynamic trust management for...
An Internet of Things (IoT) system connects a large amount of tags, sensors, and smart devices often with mobility to facilitate information sharing, enabling a variety of attractive applications. On the one hand, the service oriented architecture (SOA) can provide connectivity and interoperability among heterogeneous IoT devices in the physical network. On the other hand, IoT devices are virtually...
We propose to combine social trust derived from social networks with quality-of-service (QoS) trust derived from communication networks to obtain a composite trust metric as a basis for evaluating trust of mobile nodes in mobile ad hoc network (MANET) environments. We develop a novel model-based approach to identify the best protocol setting under which trust bias is minimized, that is, the peer-to-peer...
The design of cell formation of a cellular manufacturing system (CMS) is a combinatorial optimization problem. Cellular manufacturing can reduce the material handling costs and increase the efficiency of the system. Because of uncertainties in production life circle, there are many changes in demand of the products. But former cell formation methods ignore this situation. And product life cycles are...
In this paper, numerical simulation of three- dimensional flow field of a vertical-type liquid- continuous impinging stream reactor (VLISR) was carried out by FLUENT software, its fluid movement regulation was studied, and the distributions of pressure and velocity were analyzed. This method is convenient and easy with a reliable result compared to engineering practice. In addition, the change of...
PSO Algorithm can search the extreme point of the complex objective function more effectively in contrast to tradition optimization algorithm. Based on PSO algorithm and geometric implication of the reliability index, a global optimal method is put forward to calculate the reliability index. In recently years, multi-pile composite foundation is widely used. The classification and the computation methods...
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