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the example-based method for generating realistic, controllable human models was presented. Users are assisted in automatically generating modifying an example body data by controlling the parameters provided. The examples from the Poser and 3D Max is preprocessed as templates. The modeling method learns from these examples the correlation between the parameters and the body geometry. After this learning...
With the aim for the resistance mechanism of tobacco to Bemisia tabaci, we determined the chlorophyll content of tobacco leaves, the chemical components and amino acid content in fresh or cured tobacco leaves, and analyzed the correlations between resistance of tobacco to Bemisia tabaci and chemical components of tobacco leaves. Results show that significantly negative correlation occurs between the...
A novel low-power 2–1–1 cascade sigma delta (SD) modulator with single-bit quantizers for multi-standard wireless radio receivers is proposed in the paper. In order to reduce the power dissipation, the multirate technique is introduced. The multirate modulator decreases the sampling frequency of the 1st stage integrators which primarily determine the power consumption of the total modulator. The resolution...
A novel low-power multi-rate sigma delta modulator is proposed, which is capable to support a wide range of wireless communication standards. The modulator is based on the 2–2 cascade single-bit architecture for good stability and linearity. The multi-rate technique is adopted to decrease the sampling frequency of the 1st stage integrators of the sigma delta modulator to reduce the power dissipation...
A new low power multimode switched-capacitor sigma delta modulator (SDM) architecture for wireless communication receivers is proposed in the paper. The proposed modulator uses a cascade 2-1-1 topology with single-bit quantizer for stability and inherent linear. The double-sampling SDM and multirate SDM are incorporated together to reduce the slewrate of the operational amplifier (OPAMP) and power...
This paper demonstrates that isotope methods can provide independent insight into the recharge mechanisms and estimate relative contributions from multiple sources. Isotopic data from groundwater throughout the Northern Henan Plain were used together with classical hydrogeological information to study the sources of recharge, to locate recharge area and to understand recharge mechanism. The tracer...
The cores of sustainable development strategy are the sustainable development of social economy and the sustainable utilization of resources. Based on the reproducible natural environment of the survival and development of mankind, the essential target of ecological construction is to reach the sustainable and harmonious development of mankind, society and nature. Industrial ecology is the realistic...
In E-business age, Customer Relationship Management (CRM) has become a key factor in business success. Recent interest in relationship management and relationship marketing has led many firms to consider how to improve customer retention rates. In this paper, authors studied the characteristics of CRM system based on the environment of E-business, and supplied the solution of CRM system in E-business...
Using tetra butyl titanate as raw material, the Cs+, Ag+,Fe3+-doped and Ag+, Fe3+ co-doping contents nano-titanium dioxide (TiO2) film were prepared on a transparent glass slide by the sol-gel technique. The thin film samples were characterized by ultraviolet-visible (UV-Vis) spectrophotometer and X-ray diffraction. The effects of Cs+, Ag+,Fe3+-doped and Ag+, Fe3+ co doping dopant on absorption spectra...
College student is in the formation period of world view, view of life and sense of worth, they are very vulnerable to the surrounding environment with their strong volatility thinking; therefore, moral education in colleges is a very complicated system. Only with strengthening and stressing moral education can university place its students into useful talents in a comprehensive and harmonious development...
Financial problems of rural areas are always under great attention. We have been thinking about how to promote agricultural modernization and accelerate construction of new socialist rural areas. Therefore, this paper analyzes and researches overall design and advantages of rural areas stored value card system by analyzing stored value card system, the current credit situation of rural residents and...
A 2–2 cascade multirate sigma delta modulator targeting for GSM/ Bluetooth/ GPS/ WCDMA/ WLAN/ WiMAX application is designed in this paper. According to the needs of the customers and desired Quality of Service, the proposed modulator should be a power and area efficient reconfigurable sigma delta modulator with variable bandwidth and dynamic range. The multirate technique is introduced in the modulator...
Collapse accident frequently occurs at tunnel export. In order to reveal the mechanism of this kind of tunnel collapse, three-dimensional elastic-plastic calculation model is established according to Maanshan mountain tunnel. Thick soft overburden, untimly support and rainwater infiltration are considered as the main influencing factors of the tunnel collapse. Its special geological condition is determinative...
Sol-gel dip-coating technique was adopted to prepare TiO2/AC in ethanol solution while tetrabutyl titanate was considered as precursor in the presence of glacial acetic acid as hydrolysis inhibitor. The effects of key operation parameters such as toluene initial concentration, dosage, light intensity as well as reusing times of pholocatalyst on photocatalysis efficiency were investigated. The results...
Ultra-Wideband (UWB) communication system provides high accurate localization due to the high multi-path resolution capacity and large bandwidth of a UWB signal. Time Difference of Arrival(TDOA) technique provides very good accuracy, which is suitable for applying to UWB communication and localization systems. Estimating the target location from TDOA measurements is not an easy task since it is dealing...
Through the analysis of the electromagnetic properties for the rotor coil of turbine generator, we obtained the main magnetic field variation characteristics for the rotor winding and put forward the short circuit fault between rotor inter-turns causing the potential difference and circulation between the parallel branches of generation stator winding spectral method was applied on the spectrum analysis...
The sensitivity of sensitive equipment to voltage sags depends on the characteristics of voltage sag on the power supply site and the voltage tolerance of equipment. It is multi-uncertain including stochastic and fuzzy. Cloud model is used to present the sensitivity of equipment in this paper. The direct normal cloud generator was used to translate the qualitative distribution of VTC into quantitative...
To meet the power customer's satisfaction is the essential responsibility of the utilities. Considering the property of customer's satisfaction degree, an analytical interval assessment method of voltage sag frequency is proposed. The customer satisfaction degree is presented by an interval data corresponding to the voltage tolerance of tested equipment installed at the customer side. Based on the...
There is complex uncertainty involved in evaluation of equipment sensitivity to voltage sags, and that makes it difficult for the point-valued assessment method to evaluate the impact of voltage sags on the sensitive equipment, especially in the case of small sample size. Considering the multi-valued nature of equipment status during the voltage sags, the voltage tolerance level of sensitive equipment...
In this paper, we use the combination of energy method and Fourier analysis to obtain the optimal time decay of the Boltzmann equation with frictional force towards equilibrium. Precisely speaking, we decompose the equation into macroscopic and microscopic partitions and perform the energy estimation. Then, we construct a special solution operator to a linearized equation without source term and use...
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