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The following topics are dealt with: rainfall forecast; GPS; sequence analysis; image coding; climate change; water environmental quality analysis; remote sensing; soil moisture estimation; optimization; evolutionary game model; Kalman filter; time series model; electrochemical heterogeneous catalytic process; video processing system; urban water management; geographic information system; fuzzy neural...
Spatial heterogeneity is the fundamental attribute of landscape and the reason for landscape elements generating matter flow and energy flow. On the basis of the distribution of aquatic vegetation landscape in Honghu Lake, we have carried out exploratory applied research on the method of landscape anisotropy. We determine the directions of anisotropy at a center-emanative and radioactive angle, and...
Wetland has great water regulating and storing functions (especially flooding). It is an important water catchment space. The four-lake region is the largest lake area in Jianghan plain, which accounts for one third of the total area. Among them, Changhu and Honghu Lake are the regulating lakes in upper reach and middle-lower reaches of Four-Lake Basin respectively. According to research and analysis,...
The paper employs the model of growth drag of resources during urbanization process with the neo-classic growth theory and relationship function between urbanization and economic growth, and takes Jiangxi province as an empirical case. The results show that the drags of water and land during urbanization process in Jiangxi province respectively are 0.006836528 and 0.129913984, and total drag reaches...
Enclosure is one of the most important measures used for soil and water conservation and has been implemented since the 1970s in Sichuan Basin, China. To understand the impact of enclosure on soil and water loss, soil loss and runoff were monitored in erosion plots on steep slopeland in a hilly area of the Sichuan Basin in the period 1983-2007 under three treatment regimens: enclosure, nonenclosure,...
Water vapor and its changes directly affected the weather. It is one of key factors about severe weather formation and evolution. Accurate, and timely rainfall forecast is also important factors which increased forecast accuracy of storms, floods and other disastrous weather. In this paper, it build models of the data for training and simulation based on neural network technology, and analyzed the...
Basidiomycetes white-rot fungi which can secrete several extracellular enzymes, in which lignin peroxidase plays a dominant role in lignin degradation. In the present study, some characters of the amino acid sequence of P. chrysosporium lignin peroxidase were predicted and analysed with the tools of bioinformatics. These results showed that the protein was composed of 19 kinds of amino acid; the theoretical...
Manganese peroxidase(MnP) was the most common lignin-modifying peroxidase produced by almost all wood-colonizing basidiomycetes causing white-rot and various soil-colonizing litter-decomposing fungi. MnP could be applied in biotechnological applications, removing of hazardous wastes or in certain organic syntheses. In the present study, some characters of the amino acid sequence of P.sordida manganese...
This paper proposes a new layered image coding algorithm combined the advantages of wavelet and ridgelet transformations. First of all, the origin image I smoothed by an improved anisotropic diffusion method, obtained an smooth image R1, then subtracted R1 from I and obtained an texture image R2. R1 encoded by the SPIHT algorithm based on DWT, and R2 encoded by a amending SPIHT based on ridgelet....
The temporal characteristics of local tropopause are derived from the routine radiosonde data obtained at Wuhan (30.5° N, 114° E)and Haikou ( 20°N, 114°E ) from 2000 to 2004. The annual variations of temperature, altitude and potential temperature of tropopause are compared with those over a tropical site. The tropopause height of both site reach maximum in summer and minimum in winter, but inverse...
The impact of climate change on stream flow in the Upper Mississippi River Basin (UMRB) is assessed by using a hydrologic model, the Soil and Water Assessment Tool (SWAT), coupled with the output from a regional climate model (RCM). The SWAT model was calibrated and validated against measured streamflow data using observed weather and watershed data. The potential impacts of climate change on water...
The groundwater is the main water resources of the industry, agriculture and drinking water in the Northwest China, with the development of the economy and society in Northwest China, the polluting hazard to the phreatic aquifer is becoming much serious, the protection and preservation of groundwater resources are compulsory, particularly in the arid semiarid region like the Northwest China. This...
By the analysis of the present water supply and extraction, hydrogeological condition, groundwater quality and contaminant site etc. this paper illustrates that the present management and protection of the Dawu water site is not well, the chemical contaminant pollution is acute especially. Then, analyzes the present groundwater problem and pollution reasons, brings up an effective protection measures...
In this paper, the notion of vector-valued multiresolution analysis is introduced. An approach for constructing biorthogonal vector-valued wavelet packs in higher dimensions is proposed and their properties are investigated by means of time frequency analysis method, matrix theory and operator theory. Three biorthogonality formulas concerning these wavelet packs are obtained. Finally, new Riesz bases...
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