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The double-level optimal search algorithm It is the double-level optimal search method [5] that each group is divided into non-overlapped D groups after pre-sent data were divided into V groups and each group has V/D weighted coefficients that is +1or -1.
(4) The method is a kind of PTS algorithm [7], therefore redundancy information need to be introduced, if the redundant information is wrong, the entire group of data in the demodulation will be wrong and may increase the systematic error rate.
Research on Modified PTS Algorithm for PAPR Reduction in OFDM [J].
Multi-carrier PAP reduction method using sub-optimal PTS with threshold [J].
PAPR reduction of OFDM signal by using PTS with low computational complexity [J].

The reasons attributed to such drawbacks are the involvement of microbial catalysts for the bio-reduction reaction.
As shown in Figure 2, the absorbance band of MO at 500 nm can be ascribed to its azo bond; meanwhile, the band at 247 nm was possibly ascribed to sulfanilic acid, in line with the data reported [10].
Based on the data collected from UV-vis and HPLC-MS, it can be concluded that MO have been completely reduced to colorless amines in the cathode of an MFC.
Figure 3 shows the effect of a variation of pH on electrochemical reduction of MO.
Because protons should be involved in the reductive reaction, the increase in the concentration of protons would enhance the reduction of azo dyes.

As the decomposition level increases, the frequency division is getting smaller, but the amount of data constant decrease, time-domain resolution is on the decline.
Noise Reduction of the Failure Engine Audio Signal by Wavelet Packet The Denoising with wavelet packet is very similar to the idea of wavelet.
Figure 1 is the audio signal of a temperature sensor damaged, and noise reduction using wavelet packet transform of the four layers with db5 wavelet function, noise reduction as shown below: Figure.1 Effects of Wavelet packet Noise Reduction The noise reduction using Wavelet packet decomposition method is effective, which analyzes signal in detail through the high-frequency and low frequency, to restore and retain the useful signal part, played a good noise reduction effect.
[8] Marko et al.Automotive Control System Diagnostics Using Neural Nets for Rapid Pattern Classification of Large Data Sets.Processing of International Joint Conference on Neural Networks(ICJNN),NJ,Vol.II,1989:13-15.

Introduction Data mining is motivated for decision support problems faced by most business organizations and is described as an important field of research.
Association rules identify the set of items that are most often purchased with another set of items, is one of branch of data mining.
Algorithm test dataset, retail.dat(3.97M),comes from an anonymous Belgian retail store and contains the retail market basket data [7].
In order to be objective and equitable, each data is the average of 10 times test data.
Proceedings of ACM SIGMOD Conference on Management of Data, 1993 (SIGMOD'93), 207-216

The dynamics model obtains unit data from the modal reduction results, and the calculation results are the boundary conditions of the stress recovery calculation.
Data of the block unit and crankshaft unit are obtained from modal reduction calculation on them, while before connecting rod unit is simulated by beam element automatically via simulation software, the size and mass of the connecting rod should be inputted.
The boundary conditions used in the dynamics calculation are usually load data.
The measured indicator diagram data are chosen as load boundary conditions for dynamics simulation.
Figure 5 shows the stress development chart of the points that has the least safety coefficient in that 3 dangerous areas, and their data are shown in Table 2.

Simulation results will be compared with data obtained experimentally- obtained data.
The 3D geometry and the finite element discretization of the gearbox, having the technical data as described in table 1, are shown in Fig. 2.
Technical data of the gearbox Geometrical data Centre distance A= 125 [mm] Module mn= 4 [mm] Teeth number z1/ z2= 17/ 43 Tooth width b= 40 [mm] Helix angle β= 11 [°] Normal pressure angle α0= 20 [°] Addendum modification coefficients x1/ x2= 0,39876/ 0,34228 Performance data Maximum power P= 2,5 [kW] Nominal input speed n1= 1.500 [rpm] Loading steps (output torque) Mt2=22,0; 26,0; 29,5; 32,5; 35,5; 38,5 [Nm] Materials data Housing iron GJL-250 acc. to SR EN 1561 Pinion and gear case- hardening steel acc. to SR EN 10.084 Shaft steel for quenching and tempering (acc. to SR EN 10.083) As it is well known, one of the main sources of gear vibration is the variation of the tooth force along the length of engagement.
The flanges were mounted on the input -, respectively the output shaft of the gearbox; for the data acquisition, three MP 60 modules (two for torques and one for the speed) were used [5].
[3] Korka Z., Research on vibration reduction in operation of cylindrical gearboxes, Ph.D.

The results indicated a reduction in the void content when the percentage of waste glass increased to w/c ratios of 0.55 and 0.58.
The reduction of the void content reduced the concrete’s W/A and increased its specific gravity.
According to data from CEMPRE (a Brazilian business association dedicated to recycling), Brazil produces around 980,000 tons of glass packaging per year, using about 45% of recycled raw material in the form of shards.
The concrete composition prepared with the w/c ratio of 0.50 showed an increase in the void content from 5% to 20% of glass and a reduction in the void content from 0% to 5% of glass.
For w/c ratios of 0.55 and 0.58, the increase in waste glass content in place of fine aggregate led to a reduction in W/A due to the decrease in the void content, as indicated in Figure 2.

The amount of reduction of the detonation threshold depends on the geometry of the void.
For square voids, there exists a minimum size above which reduction of the detonation threshold occurs.
For voids with a small longitudinal dimension, there is no reduction of detonation threshold.
After removing these initiations from the data, the detonation threshold curve for L voids overlaps very well with the other two curves.
This causes a reduction of the detonation threshold of an energetic crystal containing a void.

The performance gasifier design will later be tested for performance and be used to measure data experimentally.
The postulated model is then derived to obtain an equation that will later be tested using data obtained from the experimental.
Experiments carried out to obtain data that is useful in determining the parameters of heat and mass transfer coefficients that are modeled in empirical equations.
The data that has been measured is used as a tool to validate the postulations that have been set.
The position of the thermocouple is placed at 4 heights to get temperature distribution data along the reactor height.

Based on the monthly datasets, including the number of traffic accidents, casualties and meteorological data, the relationship between the traffic accidents and meteorological conditions is studied.
Data and methodology 2.1 Meteorological data The monthly meteorological elements including relative humidity, atmospheric pressure, precipitation and visibility at Beijing observatory from Mar. 2007 to Feb. 2010 are taken in the study. 2.2 Traffic accident data The monthly traffic accident data are the numbers of traffic accident and casualty on BTT expressway from Mar. 2007 to Feb 2010.
The casualties increase with the reduction of surface pressure.
Based on the monthly datasets, including the number of traffic accidents, casualties and meteorological data, the relationship between the traffic accidents and meteorological condition is studied.
In addition, the correlation is much higher if the data in Oct. were deleted.