Towards an analysis of shear suspension flows using radial basis functions

In this paper, radial basis functions are utilised for numerical prediction of the bulk properties of particulate suspensions under simple shear conditions. The suspending fluid is Newtonian and the suspended particles are rigid. Results obtained are compared well with those based on finite elements in the literature

A Cautionary Note Regarding the Data Integrity Capacity of Certain Secure Systems

The need to provide standard commercial-grade productivity applications as the general purpose user interface to high-assurance data processing environments is ompelling, and has resulted in proposals for several different types of \trusted" systems. We characterize some of these systems as a class of architecture. We discuss the general integrity property that systems can only be trusted to manage moldable data whose integrity is at or below that of their interface components. One effect of this property is that in terms of integrity these hybrid-security systems are only applicable to processing environments where the integrity of data is consistent with that of low-assurance software. Several examples are provided of hybrid-security systems subject to these limitations.Approved for public release; distribution is unlimited