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Interfaces rather than components carry component-based software architectures. This follows directly from the design of component interfaces and contractual obligations before the implementation of components. We suggest separating component interfaces and component services such as protocol checking, synchronization, parallelization and caching into dedicated components which we call connectors...
We are concerned with the design of programming languages that support the paradigm of component-oriented programming. Languages based on the accepted idea of combining modular and object-oriented concepts fail to provide adequate support. We argue that messages should be separated from methods to address this shortcoming. We introduce the concept of stand-alone messages, give examples for its utility,...
In outdoor environments, there is a variety of different types of ground surfaces. If some of them are slippery or bumpy, for example, the ground surface itself is a possible hazard for an autonomous mobile vehicle traversing the surface. Therefore, it is beneficial if the vehicle is able to estimate, which terrain it is currently traversing. Using this estimation, the vehicle can adapt its driving...
It is proposed to report on the progress made since my 1974 Whitehead Memorial Lecture on the extraordinary dielectric properties of biological materials. It will be remembered that from very general considerations it can be concluded that large polarizable molecules are expected to possess metastable states with very high electric dipole moment. The conditions to which this transition is subjected...
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