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Abstract: Numerous geosciences applications need denser and more accurate Digital Elevation Model data. Photogrammetry, as the main method of producing DEM, sometimes loses its feasibility in the textureless area or in the case where no aerial photography with highly spatial resolution is available. Under this circumstance, interpolation methods are often utilized to generate denser DEM map. However,...
Vehicle energy-saving is important to relieve source shortage and protect environment. This article mainly discusses the control of parallel hydraulic hybrid heavy vehicle (PHHHV), which uses hydraulic components to recycle the brake energy. Through analyzing the two power sources and two brake systems in the PHHHVs, the control rules have been brought out. By logic threshold value control strategy,...
Evaluation method of service quality of restaurant is studied in this paper. Based on SERVQUAL, Evaluation system for restaurant is established. And empirical study is done for a restaurant in Mianyang,china. Service quality of the restaurant is evaluated by the restaurant's service quality evaluation method based on SERVQUAL. Then according to current service quality level of the restaurant, quality...
This paper focuses on the numerical investigation of arc plasma behavior during the arc motion and splitting process in a low-voltage quenching chamber. The 3-D mathematical model of air arc plasma considering the ferromagnetic splitter plate is built based on the magnetic hydrodynamics theory. The effect of the plasma sheath region, which is not in a state of local thermal equilibrium, is considered...
Plate-fin heat exchanger has been widely used in chemical, mechanical and electronic engineering etc. The optimal design of PFHE is an important method to improve the performance of PFHE. According to the engineering requirements, the minimum weight, higher heat efficiency and reasonable pressure loss are set as optimal objectives of PFHE, which is termed as multi-objective optimal problem. To implement...
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