A wavelet-based optical flow analysis (wOFA) method for processing background-oriented schlieren (BOS) images is presented and demonstrated on synthetic experimental data. Optical inherently well suited to BOS, because the background pattern lighting conditions are specified controlled by user can be chosen play strengths of processing. Analysis BOS data show that a two-dimensional sinusoidal p...

Data-flow-based testing is a well-established approach to program testing. Much object-oriented code is written as libraries; hence data-flow-based testing of object-oriented libraries is of great importance. However, finding def-use relationships in libraries written in object-oriented languages (e.g., Java and C++) is difficult because of unknown aliasing between parameters, unknown concrete ...

Mentat is an object-oriented parallel processing system developed at the University of Virginia which has been ported to a variety of MIMD architectures. The computation model employed by Mentat is macro data-flow (MDF), a medium grain, scalable, data-driven computation model that supports both high degrees of parallelism and the object-oriented paradigm. A key aspect of the model is that it ca...

Distributed applications are modeled in an object-based model like CORBA [1]. Here, the system is a collection of objects. The objects are manipulated only through operations supported by themselves. The purpose-oriented model [2] is proposed where an access rule shows for what each subject s manipulates an object o by an operation t of o so as to keep the information flow legal. The purpose of...