The Gas-Engine Indicator-Diagram

Exploiting the Layout Engine to Assess Diagram Completions

A practicable approach to diagram completion is to first compute model completions on the abstract syntax level. These can be translated to corresponding diagram changes by the layout engine afterwards. Normally, several different model completions are possible though. One way to deal with this issue is to let the user choose among them explicitly, which is already helpful. However, such a choi...

A Graph Diagram engine for the Transformation-Driven Architecture

The transformation driven architecture (TDA) is a system building (in particular, tool building) approach that is based on model transformations, interface metamodels with corresponding engines, and event/command mechanism. This paper describes a metamodel and the corresponding engine for graph diagram presentations within TDA. The facilities of the metamodel and the engine include static diagr...

Titanium in the Gas Turbine Engine

Gas Turbine Engine Behavioral Modeling

This paper develops and validates a power flow behavioral model of a gas turbine engine with a gas generator and free power turbine. “Simple” mathematical expressions to describe the engine’s power flow are derived from an understanding of basic thermodynamic and mechanical interactions taking place within the engine. The engine behavioral model presented is suitable for developing a supervisor...

Respiratory gas exchange using a triaxial alveolar gas diagram.

A triaxial alveolar gas diagram to depict fractional concentration of oxygen, carbon dioxide and nitrogen is described, in which the R = 1 line is always implicit. Although it is not claimed that this representation leads to new insights into respiratory physiology, a method of plotting on a triaxial coordinate system has been found to be well suited to many applications when a direct display o...