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Analysis of the measured data thanks to LMS TestLab has revealed an emergence of vibration harmonics around 2000rpm, for a vibration frequency of 400Hz.
These control loops are fixed and must not be disturbed by the controller that will be dedicated to reduction of vibrations.
Mininger, "Réduction des vibrations des machines à réluctance variable à l'aide d'actionneur piézoélectriques," 2005. [6] D.
Hameyer, "Active reduction of audible noise exciting radial force-density waves in induction motors," in Electric Machines and Drives Conference (IEMDC), 2011 IEEE International, 2011
Favennec, "Active reduction of vibrations in synchronous motors," in Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE, 2013

A form of achieving this reduction is by using mills.
The determination of the present phases, the crystallization degree and the size of the crystallites for the prepared alumina samples were determined through the diffraction data.
Sample Code Median Diameter (µm) Time Milling (min) Al.NM 23.3 - Al.01 20.9 15 Al.02 15.5 30 Al.03 14.7 45 Al.04 10.5 60 Confronting the values from Table 3, it is observed a reduction in the median diameter of the agglomerate, from 10.3% for sample Al.01, 33.5% for sample Al.02, 36.9% for sample Al.03 and 54.9% for sample Al.04, when a rotation speed is fixed at 400 rpm and different milling time lengths.
Thus, it is observed that the milling time is directly proportional to the reduction of the agglomerate median diameter of alumina, in other words, increasing the time duration of the milling will also increase the percentage of reduction of the median diameter.
The milling with time length of 60 minutes obtained the most significant reduction, of 16.8%, of the average crystallite size in comparison with the other studied samples, which lead also to a more significant reduction, of 54.9%, of the average agglomerate size when compared to the other studied samples.

Compared to existing prestressed concrete structures, the UHPC structure has disadvantages including its unknown structural behavior, lack of sufficient experimental data, and high material cost, making it difficult to expand its application.3) The structure, which reduces its height and weight using the 150MPa compression strength of UHPC, has various design advantages compared to HPC structures that have 40-50 MPa compression strength.
In the case of the F1 beam with the 1% steel fiber volume fraction, the F1S1 beam which has no ductility reinforcement bars showed the 8.4% reduction of the load carrying capacity after the peak load.
The behavior of F1.5 and F2 beams, in which the steel fiber volume fraction was 1.5% and 2%, showed the 5.4-12.8% reduction of the load carrying capacity compared to the peak load according to the types of bundle of re-bar for ductility.
If the UHPC beam has a ductile behavior that reduction of load carrying capacity after peak load is smaller than 15% of maximum load, the UHPC beam should have at least 0.7% fiber volume fraction ratio and the types of 3×3, 4×4, and 4×5 reinforcement bars for ductility.
The experimental results show that the UHPC girder which has at least 0.7% steel fiber volume fraction ratio and the minimum 1.6% reinforcement ratio of small diameter rebar for ductility has an ductile behavior that reduction of load carrying capacity after peak load is smaller than 15% of maximum load.

The statistical data was analyzed at confidence level of 95% and significance level of α = 0.05.
Table 8 shows the statistical data for mean, standard deviation and margin of error for the inhibition efficiency data of CA and AI inhibitor compound at values above 70% inhibition.
The standard deviation presents the extent of difference between the inhibition efficiency data. 
The standard deviation data for both compounds were generally higher.
Data for mean, standard deviation and margin of error for the inhibition efficiency data showed the degree of variation between the inhibition efficiency values.

MES system is researched in domestic[2], the intelligent real-time control management system is very rare, the intelligent real-time control system is a networked application management system with data collection, field control, wireless data transmission and data processing, the data analysis is obtained.
Overall design and key technology of system In the overall design of the system, the Internet of things technology is used for the network design, the manufacturing intelligent management system has the functions such as data collection, field control, wireless data transmission and data processing and analysis.
The real-time and reliability of data are ensured to achieve energy-saving emission reduction and improve the design efficiency of production management[3].
The technology has the advantages of low power consumption, data transmission to establish routing features automatically, solve the problem of traditional network of high cost, poor versatility, it can greatly reduces the system cost, and it can be very convenient to add the module reduction.
Conclusions Based on the Internet of things technology, the manufacturing intelligent management system is designed, and it is a real time processing and intelligent system with data collection, field control, wireless data transmission and data processing and analysis.

An ideal wind shield is required to create the greatest wind reduction over the longest shelter distance[7].
Both wind reduction and effective shelter distance are related to porosity.
Hence there should be a shield porosity that provides the optimal shelter effect by balancing the reduction in wind speed (pressure) with the effects on the shelter distance caused by the changes in turbulence and other factors.
The testing results revealed that the effects of the porous shape are negligible, because the discrepancies between the data for round and square shapes are irrelevant.
Norio, "Effects of windbreak width in wind direction on wind velocity reduction," Forstry Research, vol. 20(3), pp. 199-204, 2009

By using the data of certain factory, the limited value of original bending curvature radius is 63m. therefore, the 63m original bending curvature radius of 60kg/m heavy rail is taken as the study object.
The straightening machine is a 9-roller horizontal straightening device made by SMS, the basic parameter is: diameter D=1200mm, roller pitch t=1600mm, quantity of roller n=9, barrel length of roller L=300mm,straightening velocity =2400mm/s.The current reduction regulation (straightening reduction) of the straightening machine is described as following , the reduction of top straightening roller2# is 19.2mm, the reduction of top straightening roller 4# is 19.2mm, the reduction of top straightening roller 6# is 7.9mm and the reduction of top straightening roller 8# is 3.5mm.

Mode 98BII computer electrochemical analysis system (Tianjin Branch of chemical electronic high-tech Co., Ltd.) was used to determine the CV data.
A pair of peak of oxidation-reduction (0.367 V/0.194 V) appears in the course of the initial deposition.
But the corresponding reduction peak is not clear.
Here the first pair of oxidation-reduction peak corresponds to the single-electron redox process and the followed pair of oxidation-reduction peak is attributed to a further oxidation process of one-electron.
There is no oxidation-reduction peak in the negative potential, but a pair of redox peaks appears in the positive potential area.

The ARB process was repeated up to six cycles, amounting to a total thickness reduction of 98.4%.
Fig.1(b) shows the misorientation distribution obtained from the EBSD data.
Here, M (in tension) is calculated to be 3.19 from the EBSD orientation data for the present sample.
Compared with the experimentally determined 0.2% offset stress, 96.8 MPa, it is clear that the calculated stress using the EBSD data is too low.
However, good agreement is obtained when applying the TEM data.

Fig. 3 Arrangement of measuring points Fig. 4 Experimental modal testing system The 32 points are incited by the hammer in the model experiment and experiment data acquisition is completed.
Through the observation of each measurement point on the response of Bode diagram, the superimposing data of each measuring point is shown in Fig. 5.
Fig. 5 The superimposing data of each measuring point（BODE） The frequency response functions of 32 hammer points were measured in the modal experiment.
The results can provide a useful reference for vibration and noise reduction of the electronic button-sewing machine
Industrial sewing machine vibration and noise reduction technology[D].