The SNE special issues on Object-oriented and Structural-dynamic Modelling and Simulation emphasize recent developments in languages and tools for object-oriented modelling of complex systems and on approaches, languages, and tools for structural-dynamic systems. Computer aided modelling and simulation of complex systems, using components from multiple application domains, have in recent years ...

Pipes are widely used in many industrial and mechanical applications and devices. Although there are many different constructions according to the specific application and device, these can show helical pattern, such as spiral pipes, wire-reinforced pipes/shells, spring-suspension, and so on. Theoretical modelling of wave propagation provides a prediction about the dynamic behavior, and it is f...

The efficiency of knowledge sharing and learning is the key to obtain sustainable development for the knowledge-intensive industry. However, current application of enterprise knowledge repository can hardly adapt to the personalized retrieval with semantic expansion and can not support the dynamic mechanism of knowledge sharing. This paper focuses on an integrated framework and operating proces...

Modelling with objects at a concrete level is attractive as a supplement to modelling with classes. The former is known as dynamic modelling and the latter as static modelling. This paper is about a language for describing dynamic models. The language is de ned at an abstract level, thus allowing us to concentratelevel, thus allowing us to concentrate on the underlying conceptual issues rather ...

Worldwide, conservation agencies employ rangers to protect conservation areas from poachers. However, agencies lack the manpower to have rangers effectively patrol these vast areas frequently. While past work has modeled poachers’ behavior so as to aid rangers in planning future patrols, those models’ predictions were not validated by extensive field tests. In this paper, we present a hybrid sp...