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Temperature vegetation dryness index (TVDI) is widely used for its physical significance. In this study, using the historical MODIS data, we consider Henan Province, a large grain province in Central China, an example for constructing feature space and calculating TVDI. Multi- and single-group image approaches are then compared, and the applicability of the TVDI in Henan Province is analyzed through...
The space fault tree (SFT) is a theoretical and technical framework. The SFT measures the reliability with fault probability, and analyzes the relationship between system reliability and influencing factors. The system fault data is different from the general monitoring data, which has the uncertainty. The existing characteristic function is difficult to express the uncertainty of fault data. To this...
Pathway-based drug discovery overcomes the disadvantages of the “one drug-one target” method, which aims to find the effective drugs to act on single targets. The current method “iPaD” identities the drug-pathway association pairs by taking the lasso-type penalty on the drug-pathway association matrix. In order to enhance the robustness of the methods and be more effective to find the novel drug-pathway...
The roller compacted concrete gravity dam is poured by thin layers and there are many horizontal layer surfaces and joint surfaces in the dam. The shear strength of these surfaces is obviously lower than that of the RCC concrete. These horizontal layer surfaces and joint surface are the key positions affecting the strength, stability and seepage of the dam. The height of the most RCC gravity dams...
The slope of a hydropower station in the Yellow River has been dumping since the reservoir impounded in 2009. The cumulative deformation of the slope for five years is about 40m, which has posed a serious threat to the safety of the power plant. In this paper, the discontinuous deformation analysis program considering rheology deformation of structural surface is developed based on the Burgers model...
Statistically relating vegetation index to yield is a common wheat yield estimation method. In this paper, we investigate the relationship between a variety of spectral vegetation indices and yield factors for spring wheat in a semi-arid, rain-fed, agricultural region under different meteorological conditions on the basis of relevant ground observations. We also analyze the yield estimation factor...
The commonly applied triangular method was used to estimate regional evapotranspiration(ET). Based on the parameters of land surface, the applicability of NDVI-land surface temperature(NDVI-LST) and NDVI-albedo triangular methods were validated using the landsat7 data and the Heihe Watershed Allied Telemetry Experimental Research(HiWATER) observed data. Considering the affecting of soil moisture and...
Environmental Fluid Dynamics Code (EFDC) was applied to study the large shallow lake Poyang, which is formed in a three dimensional hydrodynamic frame of Navier-Stokes equations including solving equations of coupled turbulent kinetic energy and turbulent scale, and especially suitable for shallow water study. The numerical scheme of the model is spatial finite difference method in a three time-level,...
This paper presents a new approach for identifying birds automatically from their sounds, which first converts the bird songs into spectrograms and then extracts texture features from this visual time-frequency representation. The approach is inspired by the finding that spectrograms of different birds present distinct textures and can be easily distinguished from one another. In particular, we perform...
With the rapid development of satellite navigation systems, BOC (Binary Offset Carrier) is one of the most critical and most common modulation mode and will become the mainstream in the Satellite navigation signal modulation. Through the mechanism of the BOC signal, it mentioned a method named Square Frequency Doubling Method to detect carrier frequency of BOC modulation signal. The subcarrier frequency...
The study on tourism competitiveness of cities in Guangxi has both theoretical and practical significance. With construction of index evaluation system and application of grey relational synthetic evaluation, assessment and comparison on tourism competitiveness of cities in Guangxi has been conducted. The research shows that tourism competitiveness of cities in Guangxi is imbalanced in ‘four groups’...
Tourism competitiveness of south-central urban agglomeration of Liaoning province is a complex system of chaotic. Its numerous elements and subsystems exist in different ways which compose the competitiveness of urban tourism. By constructing the evaluation index system of urban tourism competitiveness and through using the method of grey relational synthetic evaluation, we rank the five elements...
In this paper, a fuzzy logic call admission control (CAC) mechanism is proposed for an integrated UMTS-WLAN network. This paper grounds a novel dynamic CAC algorithm on a class--based CAC method. It uses fuzzy logic theory to generate the optimal quantity of the channel thresholds so as to assign radio resource efficiently and guarantee the Quality-of-Service (QoS) requirement. The new fuzzy logic...
Under the background of global new energy development, Expo 2010 Shanghai provided thinking ways to solve encountered problems, mainly concerning three trends. The first is about distributed new energy development, and three ways were advocated to deal with difficulties: optimizing the irrational new energy structure depending on local resources, strengthening social support by enhancing public participation,...
Based on the theory of saturated-unsaturated unsteady seepage of porous media and finite element method, it simulates seepage field of naban earth-rock dam with core under the action of rainfall infiltration and reservoir water level drawdown, including nine calculation conditions with different rainfall intensity, rainfall duration and reservoir water level decrease. Then based on the seepage field,...
MPC lotion is a kind of colloid solution extracted from several materials of Chinese herb medicines. The anti-human papilloma virus (HPV) activity of MPC lotion on Condyloma Acuminatum (CA) patients was investigated. In treated group, the verrucae of the CA patients were wiped out with a sterile cotton tip applicator dipped with MPC lotion and were put in the vagina as suppository once a day, for...
With the rapid development of science and technology, information has become an important part of daily life. For enterprises, it plays an important role that make use of information effectively. From the perspective of information storage, combined with a popular topic of cloud computing, this paper focuses onthe importance of cloud storage. The theory and framework of cloud storage which is distinguished...
A drastic change will happen on seepage field of earth-rock dam in heavy rains, which may cause seepage damage and instability. So it has important significance to correctly analyze the change rule of seepage field of earth-rock dam in heavy rains, and rationally evaluate the safety of earth-rock dam during rainstorm period. Based on porous media and unsaturated transient seepage theory, this paper...
Urban Competitiveness of Liaoning Central and Southern Cities is a complex multi-level system, which has subsystems made up of a number of factors. These subsystems affect the competitiveness of cities together. The study finds that Liaoning central and southern urban competitiveness shows three regions differences in non-equilibrium distribution by constructing competitiveness evaluation system and...
To research Urban Competitiveness of Liaoning Central and Southern cities has great theoretical and practical significance. By constructing competitiveness evaluation system and using the gray comprehensive evaluation to compare urban competitiveness of Liaoning Central and Southern Cities, it can be found that in seven key factors, the order of affecting results from strong to weak is: City services,...
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