Identical components are available for use in a piece of machinery. The number of components needed to operate the machine is a function of time and the lifetime of each component is described by a known probability distribution. Once a certain number of components have failed there will not be enough left o operate the machine. We find a strategy which for certain lifetime distributions delays...

We propose a new formal criterion for secure compilation, giving strong end-to-end security guarantees for software components written in unsafe, low-level languages with C-style undefined behavior. Our criterion is the first to model dynamic compromise in a system of mutually distrustful components running with least privilege. Each component is protected from all the others—in particular, fro...

This paper reports on an experiment in assembling a domain-speciic machine translation (MT) prototype system from oo-the-shelf components. The design goals of this experiment were to reuse existing components, to enable the use of machine-learning tools for parser specialization and for transfer lexicon extraction, and to make the transfer as powerful as possible.

Maturana and Varela (1980, p. 78f) provided the following definition of autopoiesis: “An autopoietic machine is a machine organized (defined as a unity) as a network of processes of production (transformation and destruction) of components that produces the components which: (i) through their interactions and transformations continuously regenerate and realize the network of processes (relation...

Nowadays, errors during the manufacturing process of high value components are not acceptable in driving industries such as energy and transportation. Sectors such as aerospace, automotive, shipbuilding, nuclear power, large science facilities or wind power need complex and accurate components that demand close measurements and fast feedback into their manufacturing processes. New measuring tec...

This paper reviews current developments in mechatronic systems for metal cutting and forming machine tools. The integration of mechatronic modules to the machine tool and their interaction with manufacturing processes are presented. Sample mechatronic components for precision positioning and compensation of static, dynamic and thermal errors are presented as examples. The effect of modular inte...

41 Abstract The capability to easily find useful components has become increasingly importance in software reuse field. Current researches on component retrieval are mostly limited to retrieve the component whose function is most close to the user requirement. However, in the process of component retrieval, we frequently face the problem that the individual component can’t completely meet user’...

Abstract The supply and processing of materials for highly stressed components are usually cost-intensive. Efforts to achieve cost resource efficiency lead more complex structures contours. Additive manufacturing steps component repair production offer significant economic advantages. Machining needs be coordinated with additive in a complementary way produce functional surfaces suitable the de...