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Considering the perturbation within a wide range of flight parameter (such as height, mach), and the strong uncertainty of aerodynamic and atmospheric parameter, a LPV(Linear Parameter-Varying) control method is studied for a RLV(Reusable Launch Vehicle) during reentry, which can make the controller designed envelope-oriented and obtain the self-scheduled ability. A standard LPV controller design...
The structure was introduced, status of parallel-type Electrostatic Fabric Filter were researched, and the factors influencing collection efficiency were analyzed in the paper. With software of Gambit which also meshed the calculating region, Three-dimensional structure model of the precipitator was established. And then the numerical simulation of the air distribution characteristic was carried on...
A strain of Citrobacter freundii with sulfate-reducing function was isolated from the sticky mud at the bottom of cooling tower in a power plant. Scanning electron microscopy (SEM) was applicated to observe the cell morphology in recycled water and the medium; the sizes of cells found in reclaimed water were slightly larger than in the medium. Growth curves showed that generation of the strain were...
Submarine hull consists of complicated spatial freeform surface. During the development of submarine design, the design of its body is the important factor which will decide whether this design is successful or not. But the design of complex curve and curve surface is the core in the CAD of submarine body. It is the key skill to speed up the localization and originality of imported equipment that...
Most existing researches on Coalmine Virtual Environment (CMVE) are mainly concentrated on the geometric presentation or real-time dynamics to create immersive experiences in virtual environment and little attention has been paid on system modeling methodology and formal specification of CMVE. Based on Multi-agent technology, a hierarchical architecture for CMVE was proposed, which consists of ??Hardware,...
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