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Hydraulic supply system modeling and simulation has become a critical mean for the civil aircraft hydraulic system design and analysis. Based on AMESim software, hydraulic supply system simulation model was built. And then the whole hydraulic system design process has been simulating analyzed, including system structure and scheme design, hydraulic system and equipments' parameter distribution, and...
The essence of the simulation system that focuses on the information is described in detail and the scheme of building an information-focused model system-of-systems framework is presented. The information-focused entity model framework and information sharing framework based on service oriented architecture are realized by modeling the generation, processing, transmission and use of information....
The air is purified under high voltage and high frequency complex electric fields. The results show that the half time TH will drop while the initial concentration N0 of the aerosol particles reduces indoor, under the joint action of high voltage and high frequency complex electric fields and the filter. The half time TH is reduced when they work together. But there is a obviously delay between the...
Recent years, the application of multi-baseline DInSAR was primarily possible in the case of slow ground movements. In this paper, the application of Beijing-Tianjin intercity railway roadbed deformation monitoring based on multi-baselines DInSAR is present. To enable this, the advanced network algorithm is adapted for pixels linking. Our study is based on 15 ALOS PALSAR images during one-year period...
A mathematical and physical model of the aerosol coagulation under the joint action of high voltage and high frequency complex electric fields is developed and solution of the half time TH is obtained. At the same time, a set of experimental device is built to verify the theoretical model. The results show that the half time TH will drop while the initial concentration of the aerosol particles reduce...
The indoor air quality of lecture room in the university located in Xi'an city centre was assessed. The primary aim was to obtain correlations between the air distribution and pollutants. It was found that air distribution had important effect on the IAQ, and rational air distribution has played an important part in pollutants dispersion and attenuation. The visual air-flow field of lecture room was...
Frazil ice evolution can result in serious ice damage. Ice damage is a danger to the operation of hydropower station. A 3-D Eulerian multiphase model incorporating the high Reynolds number k-epsiv turbulence model is developed to analyze the formation and evolution of Frazil ice. Frazil ice evolution in the diversion channel of one hydropower station is used as a case. It is concluded that the ice...
PS-DInSAR technique fusing multi-metadata and its basic flow are expounded considering limitations of conventional D-InSAR in atmospheric delay and space-time decoherence. It is held that multi-metadata helps to weaken the influence of systematic error and improve the surveying precision and model steadiness of PS-DInSAR. Tianjing City is surveyed in PS-DInSAR fusing ENVISAT ASAR from 2003 to 2007,...
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