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Higher education courses are increasingly created as student organized collections of interrelated modules. At the same time, frequent change of subject matter and knowledge in its background must be handled. Above and other factors created and recognized a need for efficient computer based course management. Conventional computer aided teaching methods are(More)
—Success in engineering activities mostly depends on success in transfer of human intent into product. Recently, product development applies product model as medium to describe product information in product data base. While modeling gives a great chance for the description of engineer's intent, current information based product models are not capable of(More)
This paper presents and utilises a coupled Eulerian photochemical reaction–transport model and a detailed ozone dry-deposition model for the investigation of ozone fluxes over Hungary. The reaction–diffusion–advection equations relating to ozone formation, transport and deposition are solved on an unstructured triangular grid using the SPRINT2D code. The(More)
Product model based engineering long history of which started with computer aided design, manufacturing, and engineering (CAD/CAM/CAE) solutions recently utilizes product model which represents product as a system. In this new generation of product model, parts and units of product are modeled on the physical level as formerly. However, this level is(More)
A main drawback for currently applied engineering modeling is that large models in the industry with so many unorganized inside and outside relations are hard to survey and understand by engineers at definition of new contributions. The authors developed a new concept and methodology to improve current product modeling by an extension to new content based(More)
During the past decade, engineering moved into virtual spaces in the leading industries and product model became a medium between communicating engineers. This change motivated the authors of this paper to make a development on currently prevailing product representations where human intent, engineering objective are not included in product models. Lack of(More)
Advancements in engineering modeling have changed work of engineers during the last two decades. Sophisticated descriptions store information about shape oriented engineering objects and their relationships. Boundary representations of form features constitute shape models. Rules and checks have replaced simple data form of shape model entity attributes.(More)