Taking the cross-section of an expressway as an example,the modified gray prediction model GM(1,1) was established by using the measured data of overloading.
Firstly the paper analyses the safety characteristic of the high-grade highway. Based on the gray characteristics of traffic safety system,a gray evaluation method is put forward.
Fengdian cutting slope, which is on the Sichuan segment of the expressway from Shanghai to Chengdu, is 78.5m high. The slope consists of mudstone and sandstone.
Sorption of heavy metal (copper and strontium) ions by the meadow chernozem and grey forest soils differing in the content of organic substance was described using the Langmuir equation.
The fungal-bacterial ratio in the soils of natural ecosystems (0-5 cm, without litter) was 4.3, 2.2, 1.5, and 1.5 for tundra soil, virgin chernozem, coniferous (soddy-podzolic soil), and larch (grey forest soil) forests, respectively.
The lower layers of soddy-podzolic (5-10 cm) and grey forest (48-58 cm) soils showed a decrease in the fungal and increase in the bacterial component in the total SIR.
This method is different from classical algorithms in which the gray differential values of the mutual vertical direction are combined into one gradient value.
A real-time image-tracking algorithm is proposed, which gives small weights to pixels farther from the object center and uses the quantized image gray scales as a template.
Thirdly, based on gray cognate analyses of factors affecting runoff and sediment production in sloping land, the factors of stand canopy density and herb and litter biomass were the most significant ones, whose gray incidence degree exceeded 0.6.
The captured images are processed by an algorithm on the basis of the analysis of gray characteristics of the root gap to get the offsetting information between torch and root gap centerline.
On the basis of twenty years paint exposure, the practicable ways for increasing weatherability of the outdoor structural steelwork paints are brought up.
Using the grey system control theory, this paper makes an analysis on the variety of the annual amount of port passenger transport. With the help of the grey information prediction theory, this paper also analyzes the existing annual amount of passenger transport in Shanghai Port, a mathematical model of which is set up on the basis of data processing of the annual amount time.
Based on the gray theory which is recently developing in China, this paper has predicted road freight volume. A road freight volume prediction model is established for a countrg.