Case Studies in The Hybrid Process Algebra Hypa
نویسندگان
چکیده
HyPA is an algebraic theory based on the classical process algebra Algebra of Communicating Processes (ACP) for the specification and analysis of hybrid systems. We have the idea that HyPA is also well suited for addressing various aspects of digital embedded systems including hardware, software and concurrency, as well as mixed-signal designs. To show that HyPA is useful for the specification and analysis of hybrid systems and that our idea is correct, we illustrate the use of HyPA with some case studies: a point-to-point communication , a thermostat, a positive-edge-triggered D flip flop, and a small part of a mixed-signal fuzzy controller.
منابع مشابه
Modeling an Impact Control Strategy Using Hypa
We analyze a control strategy for the pick-and-place module of a component mounting device. We use a combination of techniques from bondgraphtheory, systems theory, process algebra and differential algebra to achieve this, and we show how the hybrid process algebra HyPA aides us in combining these techniques and in using them on a common hybrid model of the device.
متن کاملLinearization of hybrid processes
We present an algorithm for the linearization of hybrid processes modeled in hybrid process algebra (HyPA) and prove its correctness. HyPA is a formalism that is suitable for the algebraic analysis of hybrid systems, i.e., systems with continuous (physical) as well as discrete (computational) components. Linearization is a useful first step in this analysis, because it reduces the complexity of...
متن کاملAction and Predicate Safety of Hybrid Processes
In this paper, we study two kinds of safety properties for hybrid processes, namely safety for actions and safety for predicates on model variables. We give an algebraic specification of these safety properties using the process algebra HyPA, and show how to reduce the question of safety of a linear process specification to the question of safety of its sub-processes. As an example, we study a ...
متن کاملCharacterization of Helicobacter pylori nickel metabolism accessory proteins needed for maturation of both urease and hydrogenase.
Previous studies demonstrated that two accessory proteins, HypA and HypB, play a role in nickel-dependent maturation of both hydrogenase and urease in Helicobacter pylori. Here, the two proteins were purified and characterized. HypA bound two Ni(2+) ions per dimer with positive cooperativity (Hill coefficient, approximately 2.0). The dissociation constants K(1) and K(2) for Ni(2+) were 58 and 1...
متن کاملRhizobium leguminosarum bv. viciae hypA gene is specifically expressed in pea (Pisum sativum) bacteroids and required for hydrogenase activity and processing.
Rhizobium leguminosarum bv. viciae strain UPM791 induces in symbiosis with peas the synthesis of a nickel-containing hydrogenase which recycles the hydrogen evolved by nitrogenase. The genes required for synthesis of this hydrogenase, hupSLCDEFGHIJKhypABFCDEX, are clustered in the symbiotic plasmid. Analysis of a hypA-deficient mutant showed that HypA is essential for symbiotic hydrogenase acti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- International Journal of Software Engineering and Knowledge Engineering
دوره 15 شماره
صفحات -
تاریخ انتشار 2005