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With the rapid development of secondary fiber industry, more and more attention to the pollution discharge from its effluents and sludge were caused. The toxicity studies on coated white board effluents of secondary fiber were carried out by using optimized photo bacteria method. The results showed that the value of EC50 for acute toxicity in coated white board effluents, which were produced from...
Shrimp wastewater was studied by using photosynthetic bacteria sludge method. The results indicated that this method got better effects than single sludge or only photosynthetic bacteria treatment. The removal of the CODcr could reach 63%, the removal of the NH3-N could reach 92.5 %. Compared with conventional methods, it had easier operation, lower cost; and need not deal with the problem of sludge...
The main problem that watershed image segmentation facing is over segmentation. The paper that combines adaptive threshold decision and watersheds improves the traditional image segmentation technology. Firstly, applying the wavelet transform to get the detail and approximation information. Based on the gradient magnitudes of the approximation image at the coarsest resolution, an adaptive threshold...
Images are low definition captured from the camera under the condition of insufficient light, and it is difficult to identify or distinguish the content of the images. Based on Retinex theory, applying the enhance operations for these images can reduce the low definition effect caused by weak and dark sunlight. But it should be noted that Retinex method for these images would cause strong saturation...
Cellular automaton has long been become the main modeling tool for traffic flow simulation. But the related calculated vehicle velocities are not continuous. This would cause some difficulties for experimental checking. Imaginary slope algorithm based on the deflection curve of a built-in beam could reveal the smoothness of a real procedure validly. A traffic flow simulation model taking advantages...
In traffic flow procedures the inference of macro environment to vehicle powers shows a complicated behavior. To this end, it presents an imaginary slope based model for the purpose of car following modeling. The imaginary slope applied takes the shape of the deflection curve of a built-in beam. The up limits of car velocities are supposed to be related to the macro car density. A large scale simulation...
Traditionally, continuous car-following modeling method and cellular automaton method are the two most typical traffic modeling methods. Both of them have their limitations. The former has difficulties in parameter calibration and is short off in randomization, while the later can't reveal the basic continuance characteristic of vehicle speeds. And continuous vehicle speed is the basis of experimental...
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