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The first non-beta release of the Weather Research and Forecast (WRF) modeling system in May, 2004 represented a key milestone in the effort to design and implement a fully-functioning, next-generation modeling system for the atmospheric research and operational NWP user communities. With efficiency, portability, maintainability, and extensibility as(More)
This paper presents three experiments to explore the feasibility of location-based voice messaging. We first compared three methods for collecting synthetic speech messages located in a room, namely PIN code entry, barcode scanning and automatic detection with a Bluetooth antenna. In addition to being very reliable, Bluetooth detection was significantly(More)
In this paper, we propose a process calculus, Context-aware System Calculus (CSC), in order to describe context-aware systems that can maintain context models and carry out some operations, including requesting context-aware services, according to the context rules. Besides, a context-aware system can also communicate with other systems or receive context(More)
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