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Human motion capture data, which are used to animate animation characters, have been widely used in many areas. To satisfy the high-precision requirement, human motion data are captured with a high frequency (120 frames/s) by a high-precision capture system. However, the high frequency and nonlinear structure make the storage, retrieval, and browsing of motion data challenging problems, which can...
Routing table size and route length are two key metrics for evaluating a routing scheme, and there is an obvious tradeoff between them, i.e. the space-stretch tradeoff. The generic shortest-path routing takes an extreme position by only optimizing the route length, hence the routing table size grows linearly with the network size. Compact routing refers to design of routing schemes with optimized...
A three-layer structural product information model is put forward. The information interaction of each layer is researched. In data layer, model-driven mapping method is adopted. The bidirectional data mapping mechanism is set up between XML and database using JavaBean object as the middleware. In logic layer, the paper uses product structure tree to take organization and management on components...
The aerodynamic characteristics of the BWB-UAV were simulated numerically based on the high performance computing cluster system. The effects on the aerodynamic characteristics of the whole aircraft made by the BWB were investigated. The longitudinal/lateral characteristics of BWB and the conventional tailless sweep wing had been compared. The results showed that BWB configuration had the better longitudinal...
In recent years, various types of ad hoc routing protocols have been studied in the mobile ad hoc networks. Specifically, the clustering hierarchical routing algorithms have been developed to increase the system performance. Hierarchical structure has inevitably brought some drawbacks, maintaining the hierarchical structure needs more complicated cluster heads selection algorithm, which may result...
In this article, a novel 0.2 THz imaging system is presented. It is made up of Gunn oscillator, dual mode antenna, off-axis reflector antenna and Schottky diode detector. It has many merits such as: small-size, low-cost, low-power-supply, and room-temperature-operational compared to the THz-time domain spectrometer (THz-TDS) which has a large-size, is expensive, and has strict requirements to working...
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