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Then, regression analysis method is applied for data processing to the total deformation and different positions of axial, radial deformation about the model.
The purpose of regression analysis is to analyze and fit experimental data, get the regression equation, estimate or predict the value of the dependent variables on the basis of a given independent value of the variables.
Then, apply regression analysis method for data processing to the total deformation and different positions of axial, radial deformation about the model, from which the following observations are obtained: (1) Compared with the influence between two factors and the pressurized deformation, the pressured displacement would be increased with the increase of groove width when the diameter of shaft and sleeve thickness is constant; the pressured displacement would increase with the increase of groove width when the diameter of shaft and contact length is constant.
[5] Frederic Lanoue, Aurelian Vadean, Bernard Sanschagrin: Fretting fatigue strength reduction factor for interference fits.

The data at three special angles of RCS of the nine cars are given as Tale 1.
What’s more, RCS data change regularly with the body angles, and the changes are obvious.
The RCS data of A,B,SUV approach close, so we sort them into a type, called Ⅱranged from 20 to 32.The RCS data of minibus, light truck approach close, so we sort them into a type ,called Ⅲ ranged from 32 to 40.
Table 2 RCS data ranges of four car types [] vehicle type cars RCS trend RCS data range Ⅰ A0 increase by degrees [10,20） Ⅱ A,B,SUV [20,32） Ⅲ minibus, light truck [32,40） Ⅳ medium bus, motor bus, heavy truck [40,60） About the RCS data ranges, there must be something to add.
Moreover, if the RCS data of a car are boundary data, we acquiesce in that the car belongs to the next type to ensure safety.

Optical information processing systems have been widely applied, this paper studies the calculation of the amount of a reduction in the use of genetic algorithms to increase the diversity of the sample algorithm to reduce problems caused by the sample dilution with a resampling method, combined with the finite field resampling, resampling constitute a finite field of genetic algorithms.
Figure.2 DSP devices for optical information processing Completion signal processor and an external interface, the level adaptation, the data format conversion.
Central control system receives various control signals and transmission data, and converts it to a digital signal processing module adapted to receive the signal level of the data format, the transmission to the digital signal processing module.

Principal component analysis can achieve the complex multivariate dimension reduction.
Thereby it will simplify the variables, simplify the overall understanding of the data and may explore the implied structural factors that affect the changes of the enterprise data.
Because of the original data’s format, type, etc, the principal component analysis incorporates the continuity of the main data.
Meanwhile, due to the differences between the data units and the different dimensions, original data values’ Z-scores are used as a new variable to participate in the principal component analysis.
Participation variables as follows (for easy understanding, and also to simplify the data, some companies’ data are adopted only for the year 2010; while some companies individual indicator data have missed, so we use the average value of the index as an alternative).

Network communication unit use the TCP / IP protocol to complete the network data exchange.
CS8900A I / O space mode 8-bit data bus and STC89C54 P0 port connection, the address bus 4, two control lines.
Set the effective I / O status to the address bus and control lines are set low, data can be 8-bit data bus transfer.
Data transmission, the CS8900A can directly drive the light-emitting diodes, to alert the network connection or data transfer situation.
Initialization is completed; the data transmission can be by calling the other functions.

The study identifies the optimal UV wavelength for operation and measures device programming efficiency and data retention.
However, most optoelectronic devices are unable to retain data once the light source is turned off, which affects data persistence and reliability, requiring integration with non-volatile memory.
As shown in Figure 6 and 7, the device demonstrates distinct current responses and data retention under UVA, UVB, and UVC exposure, confirming the wavelength-dependent performance.
Data retention time of the device under UVA, UVB, and UVC exposure.
Tauc plot analysis of PI films with increasing ODPA content, revealing a progressive reduction in the energy gap (ODPA 1.6g ; ODPA 1.8g ; ODPA 2g).

Finally the data are analysed to find appropriate damage metrics.
Data acquisition.
Fig. 3: Measuring system for data acquisition Signal Processing The most challenging task during the development of a health monitoring system is to extract the desired information out of the huge amount of acquired data.
In the approach of this project the first step to reduce the amount of data is the calculation of the frequency spectra from the captured time series data.
Damage Diagnosis After the calculation of amplitude and phase of the transfer function, a further data reduction and interpretation is essential.

A training sample is a set of input and output data.
It converts data into data between 0 ~ 1.
Set of sample data is ，define as，，and the normalization processing calculation formula is：。
After training the actual data should be carried out in accordance with the same formula transformation, as the input of the network.
Output data also should undertake reduction calculation and restore the actual value.

In noise reduction, the goal can be to eliminate audible noise that is regularly repeating or periodic in nature, such as engine or motor noise.
There are at least four buses in its chips: bus of program data, bus of program address, bus of data and bus of data address.
This kind of separate system, data memory and dual independent bus makes it possible to obtain instruction word from program memory and operand from data memory, which enables instructions and operand not to interfere with each other during a machine cycle.Some DSP chips even have other buses so that more functions have been accomplished in monocycle.
Especially, when continuous multiplication and addition is needed in designed algorithms, the superiority of this structure can be fully embodied. 2.4 I/O interface structure DSP which has flexible I/O interface, in-chip I/O management and optimized instruction set to fulfill high-speed and paralleled data algorithms can use flexibly program of C and assembly languages.In this way, the capacity of addressing, data input and output and parallel processing has been improved greatly.
By fitting the data rate to the phone line's capacity, an ADSL adaptive rate modem can provide the best performance possible from every residential or business telephone line.

S-curves are most often applied for analyzing past data in order to disclose new trends and for proving known ones.
The Loglet lab software package allows users to perform Loglet analysis on any suitable time-series data set.
Using Loglet lab software and patent publications data, logistic fits are produced for man-made board technologies [6].
Patent data were input into Loglet Lab software to generate logistic growth curves.
Mogee: International Patent Data for Technology Analysis and Planning (Lehigh University, USA, 2004)