Eines der Hauptziele des Applied Research Branch in der Numerical Aerodynamic Simulation (NAS) Systems Division am NASA Ames Research Center ist die beschleunigte Einfiihrung von parallelen Hochleistungsrechnern in ein produktionsorientiertes Rechenzentrum. In dieser Arbeit werden die Zielrichtungen des NAS Projekts in Bezug auf Parallelrechner dargestellt. Weiterhin werden die Erfahrungen mit ...

Aiming at region connection calculus (RCC) can only roughly represent spatial topological relations, and have difficulty in representing the distance, direction and so on. Therefore, based on RCC theory, Region Extension and Shrinking Calculus are proposed, and then a formalized metrization method using region as a basic unit is introduced. Based on RESC theory, taking the advantage such as app...

Qualitative constraint calculi are representation formalisms that allow for efficient reasoning about spatial and temporal information. Many of the calculi discussed in the field of Qualitative Spatial and Temporal Reasoning can be defined as combinations of other, simpler and more compact formalisms. On the other hand, existing calculi can be combined to a new formalism in which one can repres...

The objective of this study involves the optimise process of a sorting machine for spherical fruits, which are currently manually classified with a low level of efficiency in Iran. An instrumentation system is modelled and fabricated for the development of a fruit sorting machine. Mechanical components and control system are assembled on a chassis for fruit transferring and classifying. A gravi...

Current, data-driven applications have become more dynamic in nature, with the need to respond to events generated from distributed sources or to react to information extracted from incoming data streams. Event processing and stream processing have traditionally developed as two separate areas of research. Event processing has its roots in research with active rule processing (Widom and Ceri, 1...

LYMPHATIC DRAINAGE of the heart has received little attention in the past but its potential importance has been recognized recently by several investigators.1-5 Review of studies of cardiac lymphatics4' 6 shows that many details of the anatomy of the system are still unknown, largely because of limitations of the technics of investigation. The small size and delicate structure of peripheral lym...

large panel precast structures are analyzed based on the connection rigidity. however, the connections undergo nonlinear and inelastic response, when subjected to seismic loads. thus, to study the actual behavior of structure, the connection nonlinearity should be implemented in the joints. in this paper, three conventional connection types are modeled based on the envelope of their cyclic resp...