ADVANCED SFR DESIGN CONCEPTS AND R&D ACTIVITIES

Draft material for 3 rd edition of Distributed Systems – Concepts and Design

Advanced Design Concepts for Open Distributed Systems Development

Experience with the engineering of large scale open distributed systems has shown that their design should be specified at several well defined levels of abstractions, where each level aims at satishing specific user, architectural and implementation purposes. Therefore designers should dispose of a comprehensive design methodology, which allows them to conceive a specification at a certain abs...

Scientific Visualization: Advanced Concepts

The display of surfaces and solids has usually been restricted to the domain of scientific visualization; however, little work has been done on the visualization of surfaces and solids of dimensionality higher than three or four. Indeed, most high-dimensional visualization focuses on the display of data points. However, the ability to effectively model and visualize higher dimensional objects s...

Advanced Civilian Aeronautical Concepts

Paper discusses alternatives to currently deployed systems which could provide revolutionary improvements in metrics applicable to civilian aeronautics. Specific missions addressed include subsonic transports, supersonic transports and personal aircraft. These alternative systems and concepts are enabled by recent and envisaged advancements in electronics, communications, computing and “Designe...

RD-flatness and RD-injectivity

It is proved that every commutative ring whose RD-injective modules are Σ-RD-injective is the product of a pure semi-simple ring and a finite ring. A complete characterization of commutative rings for which each artinian (respectively simple) module is RD-injective, is given. These results can be obtained by using the properties of RD-flat modules and RD-coflat modules which are respectively th...