AutoTutor and the Generalized Intelligent Framework for Tutoring (GIFT) are two separate projects that have independently recognized the need for greater interoperability and modularity between intelligent tutoring systems. To this end, both projects are moving toward service-oriented delivery of tutoring. A project is currently underway to integrate AutoTutor and GIFT. This paper describes the...

The use of a modular technique in modeling for assembly can improve design efficiency and reduce the cost of product development. This paper presents an approach to an assembly model that was built using modular interface geometries. This paper proposes a novel, hybrid modular design strategy instead of the traditional, top-down design process. The curve-joint method is used as a simplified pro...

Integration of increasingly complex systems on a chip augments the need of system-level methods for specification and design. In the earliest phases of the design process important design decisions can be taken on the basis of a fast exploration of the design space. This paper describes an abstract modeling approach towards system-level design-space exploration which is formal and flexible. It ...

Computer support for conceptual design of building structures is still ineffective, mainly because existing structural engineering applications fail to recognize that structural design and architectural design are highly interdependent processes. This paper describes a computer representation called StAr structure-architecture , aimed to act as a common basis for collaboration between architect...

this research uses computational modeling to explore another method to increase diesel engine performance while maintaining low pollutant emission levels. previous studies have shown that injection-rate profiles and injector configurations play important roles on the performance and emissions of particulate and nox in di diesel engines. since the most important engine design parameters, includi...