This paper studies a time-varying coefficient predictive regression model, which takes account of the endogeneity and nearly integrated and integrated state variables. A local linear approach is used to estimate the time-varying coefficients. The asymptotic distributions of these estimates are established for α-mixing time series and the uniform convergence with a rate is also investigated. Fur...

In this paper, we develop a feature comparison method for the Chinese-chess object by using the features comparison based on input image and database. Features are generated by calculating the distance between the contour of the character and the centre of the chess object. In this paper, the noise filter, object extraction, normalization, feature calculation (FC) and maximum energy slop (MES) ...

..4bstract—A novel ultrabroad-band amplifier configuration suitable for GaAs FET’s has been developed. The developed amplifier circuit operates as a capacitor-resistor ( C–R ) coupled mnpfifier circuit in the lowfrequency range in which IS21 I for the GaAs FET’s is constant. It also operates as a lossless impedance matching circuit in the microwave frequency range in which IS21 I for the GaAs F...

The potable water declined after the global climate crisis. Due to warming. River levels have also decreased. Moreover, so much has become dependent on from wells. Which are often salty. Purifying this requires many fossil fuels that cause damage environment. Therefore, researchers turned renewable energy sources, including solar energy. In paper, we designed and made a distiller, single sink w...

The regional research is conducted on the mechanical properties and performance of loess in slop northern Shaanxi Province, China. On precondition conforming to related technical regulations, equipment was purchased or selfdesigned machined conduct large-scale in-situ direct shear test participatory a high slope Through multiple field tests red soils four-level platform side engineering tunnel,...

introduction: leptin is a hormone resulting from the obesity gene which could be important in the pathogenesis of the insulin. only limited data concerning the interaction of insulin, glucose tolerance and free leptin are available and no data exist on the potential influence of free vs. bound circulating leptin. we, therefore, studied percentage of free to total leptin in diabetic patients. ma...