نتایج جستجو برای: dynamic adaptation
تعداد نتایج: 542139 فیلتر نتایج به سال:
We consider the variety of Dynamic Relation Algebras V DRA We show that the monoid of an algebra in this variety determines dynamic negation uniquely
In this paper, we analyze the quality of a large class of simple dynamic resource allocation (DRA) strategies which we name priority planning. Their aim is to control an undesired diffusion process by distributing resources to the contagious nodes of the network according to a predefined priority-order. In our analysis, we reduce the DRA problem to the linear arrangement of the nodes of the net...
This paper describes approaches for dynamic software adaptation using runtime models of the software architecture. Software adaptation patterns consist of interaction models and state machine models that are used during dynamic software adaptation. Software adaptation and recovery concerns are off-loaded from components by incorporating them into connectors, which are responsible for dynamicall...
The radiation characteristics of hemispherical DRA elements mounted on or embedded in a hollow circular cylindrical ground structure are investigated. The performance of the DRA array which operates at about 1.8 Ghz, is studied. Factors influencing the array performance, such as the number of elements and element spacing are explained. The perforated dielectric technique is used to design the a...
A major application of dynamic adaptation is the development of safe and reliable embedded systems. In contrast to classical redundancy approaches dynamic adaptation can react much more flexible to different kinds of errors including changes in the environment. Moreover dynamic adaptation can usually be realized much more cost-efficient than classical redundancy or faulttolerance mechanisms. Us...
I/O libraries such as PANDA and DRA use blocked layouts for efficient access to disk-resident multi-dimensional arrays, with the shape of the blocks being chosen to match the expected access pattern of the array. Sometimes, different applications, or different phases of the same application, have very different access patterns for an array. In such situations, an array’s blocked layout represen...
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