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In 20th century and in early 21st century, there were some massive earthquakes happened in China. Rapid and accurate estimation and assessment of casualties caused by earthquake is essential basis for government and administrators to initialize the appropriate level of emergent plan. In this paper, a casualty prediction system for earthquake based on geographic information system has been developed...
Statechart has been utilized as a visual formalism for the modeling of complex systems. It illuminates the features on describing properties of causality and concurrency. This paper focuses on the use of statecharts to model the preemption of emergency vehicles system. The advantage of the proposed approach is the clear presentation of traffic lights' behaviors in terms of conditions and events that...
The electromechanical transient model of direct-drive wind farm is built through the reasonable simplification of electromagnetic transient model and its engineering application is realized through power system analysis software package (PSASP) user-defined (UD) model widely used in china. The transient characteristics of direct-drive wind farm connecting to power grid are acquired by combining theory...
A semi-automatic 3D roof reconstruction method is proposed in this paper. It consists of two components: automatic recognition of 2D plane drawings and interactively ldquopullingrdquo or ldquopushingrdquo the recognized results. Only a limited number of reconstruction operations are needed to generate various types of 3D roofs, making the method efficient.
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