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Although the corresponding low-order model can be gotten by the model reduction method, the accuracy would be reduced accordingly, and finally it will lead to a great difference between the results of the analysis and the actual conditions, keeping the accuracy requirements hard to be achieved[4, 5].
With feedback data of grating ruler as output system, combined ball screw feed system characteristics and control requirements, choosing good quality second-order dynamic model as a reference model ,using Narendra program MRAS is built by testing the system until the adjustable reference model achieves matching with reference model, finally deduce the second-order model of ball screw feed system.

., estimated the diverting in food waste treatment could cause reduction rate of GHG emission increasing from 12.26% to 29.11% for year 2020 [2].
Two sets of thermocouple type K was used to record the temperature data during combustion.

So diesel exhaust after-treatment technologies are the focal points for the reduction of exhausted pollutant from diesel engines.
According to the data of the Structure Commission of the International Zeolite Association, the space group of LTA zeolite is Pm-3m; Cell parameters are: a = 1.228nm, b =1.228nm, c = 1.228nm, α = β =γ = 90°; and Channel system is: <100> 8 4.1 x 4.1*** (3-dimensional).

Data on pesticide use on tropical pumpkin is not available for china, but the situation is probably similar.
While this study supports the suggestion that reduction of disease in this farming system is largely physical in nature, it also underscores the need for extended analyses of the interactions of soil ecology and plant disease.

Due to using electrical growth of family, enterprises and power equipments, the oil in lots of transformers has excess temperature because of overload, what’s more, it will lead to the oil in transformers insulation decline, oil flow electrification and transformer coil aging, even make transformers fire and explode. [1]Against the background of energy saving and emission reduction, reducing transformers’ oil temperature becomes an issue which has a great deal of social effect.
To prove the validity of this model, a set of experimental data from a experimental platform which simulates S11-4000/35 is compared to the model date.

The tensile strength was calculated and data was analyzed statistically based on the Weibull method.
The fibres tested with a 100 mm gauge length showed an improvement of 35% with 50% probability of failure, compared to uncoated fibres, a clear indication of the reduction in notch sensitivity.

Since we used a large dilution ratio (HMDS/H2 ≈ 10-4) this may come from the strong effect of carbon reduction by hydrogen.
In opposition with literature data, the growth temperature could not be reduced significantly when using HMDS.

Introduction Some authors have reported the reduction of defect density in SiC epilayers grown on porous SiC substrates (PSC) by using the combinations of different methods including x-ray topography, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) [1,2].
The inference is in the agreement with the data reported in [5] where it was shown that the pore formation strongly depended on the defect structure of the initial bulk material: for the samples with the dislocations non-uniformly distributed both throughout the bulk and along the surface of a sample, the pore size, porosity, and porous layer thickness exhibited dramatic changes.

As the size of a tool decreases, the sharpness of the tool cannot be improved proportionally due to limitations in the tool fabrication processes and reduction in the structural strength of the tool [3].
Experimental data for down-milling were obtained from Bao and Tansel [1].

The reduction of tube thickness is caused by fretting wear, which may threaten the safety of components [3].
After the tests, the depth profile of wear scar of the tube was recorded by using surface profile meter and these data were used for estimating approximate wear volume.