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The aerodynamics characteristics of sedan model were researched by simulation, the drag coefficient and the aerodynamic characteristics around model were achieved with analysis of velocity and pressure distribution. Based on results, the below transition radius of rear-view mirror, the angle of back window and trunk lid and back trunk were optimized. The drag coefficients were reduced. The conclusions...
A new family of porous crystals was prepared by combining 1H‐1,2,3‐triazole and divalent metal ions (Mg, Mn, Fe, Co, Cu, and Zn) to give six isostructural metal‐triazolates (termed MET‐1 to 6). These materials are prepared as microcrystalline powders, which give intense X‐ray diffraction lines. Without previous knowledge of the expected structure, it was possible to apply the newly developed charge‐flipping...
In this paper, the activated sludge which taken from the oxidation ditch of the sewage treatment plant was domesticated for 40d with simulated cooking fumes, and 4 strains of dominant microbes were gained after screened twice, named as ZH-01, HL-03, XJ-021 and BD-55, degradation rates to pollutants from cooking fumes was determined as 60.95%, 68.81%, 65.22%, 74.57% respectively. 4 strains of dominant...
In order to overcome the limitation of the classical wavelet transform, an adaptive wavelet transform denoising method was proposed which uses the correlation between samples to detect features of signal. On the basis of the lifting scheme wavelet transform, several sets of predictors and updaters are prepared in the transform. Local features of the signal on each level were examined by using the...
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