This study aims at the automatic detection of the ocean eddies from Moderate Resolution Imaging Spectrometer (MODIS) L1B data in the China Seas. First, the sea surface temperature (SST) is estimated from MODIS Aqua/Terra L1B data using the nonlinear IMAPP algorithm. Based on the distribution of SST,...

This paper based on the monthly precipitation data of 9 surface meteorological stations in the Hengyang basin for 53 years (1960 to 2012), by using the methods of Morlet wavelet transform and Mexican hat wavelet analysis, the multi-time scales of precipitation of the Hengyang basin has analyzed. The...

In this paper, the effect of preparation conditions of the catalyst MIL-88A were investigated. The results shows that MIL-88A with the raw materials proportion of n (Fumaric acid/ Fecl3?6H2O)=1:1, the synthesis temperature of 85? and crystallization time of 2h, activation temperature of 100? and drying...

In this paper, the catalyst PTA@MIL-101-NH₂-Cl with various 2,5-dichloroterephthalic acid was synthesized. Based on this, the effect of the strong negative groups -Cl on the crystal structure, molecular structure and thermal stability of the catalyst was studied. It was found that the immobilization...

Due to the existence of runoff randomness, flood control operation of cascade reservoirs faces certain risk. In this paper, risk evaluation's index system for the objectives of cascade reservoirs is established. And based on the normal quantization of accidental error in flood prediction, a flood stochastic...

The threshold pressure gradient of CO₂ miscible flooding is very complex in the low permeability reservoir. And the short low permeability core experiments are adopted to study it in this paper. Studies show that the curve of pressure gradient and flow rate presents a concave distribution and the threshold...

Sustained-release and salt containing anticoagulation is a kind of admixture which can take the initiative to melt snow on the road. However, currently most of products on the market are foreign products, and few domestic products do not have a long-term effect. To enhance sustained-release and long-term...