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Any faults can seriously affect the production system.
Faults in induction motors can be categorized into two types: mechanical and electrical.
Induction motors have a highly symmetrical electrical system due to the rotating magnetic field, so any type of disturbance will alter its symmetrical properties [8].
Both methods assume that each class comes from a multi-variate Gaussian distribution and use the statistical properties of the data, such as variance, covariance, and mean, to establish the classifier.
Finally, discriminant analysis assumes certain data distribution properties, which could limit its effectiveness if applied to datasets with different characteristics or highly non-linear fault patterns.

Principal factors of influence.
By these contrast tests, he concluded that the process was not really affected by these two factors.
Principal influence factors.
Separation method and product properties.
He also studied the properties of solid, liquid and gas fractions.

（a）Rolling Stones and collapse caused road damage in Beichuan County （b）Landslide buried a road in Beichuan County Fig.4 Damage of road Water, oil, gas supply system In Wenchuan earthquake, due to hit power failures, damage of electrical and mechanical equipment, building (structures) damage, damage to pipelines, water supply hit most cities can not be normal.
Rescuers braved aftershocks, the danger of flying stone cave, 14 to reach all affected counties, 15 have reached all affected villages and towns.
The affected areas are not disaster-related outbreaks of infectious diseases and public health emergencies.
Timely implementation of the schools of the disaster, business recovery capacity to reassure the public, three months after the earthquake, all the affected schools will resume classes, 93% of the affected enterprises to resume production, 93% of commercial outlets resumed operations.
Sufficiency of technology The reason why such a huge loss of life and property caused by earthquake, in addition to the strong earthquakes and other objective factors, to some extent also reflects the backwardness of the Chinese economy, science and technology level is not high and the people in the face of natural disasters, less able to help themselves.

Introduction RC structures deteriorate over time, as a result of exposure to the environment, variations in loading, degradation of material properties and other factors.
It applies generalised principal components analysis of the measured time domain vibration response of the slab, which allows the reduction of the measured discretised time vectors and possesses certain optimal properties.
Unfortunately there is sufficient evidence to underpin the fact that most damage types and scenarios in RC structures do not affect the modal frequencies or affect them insignificantly [1,7].
The generalised PCA approach was proved to have the following optimal properties: it (1) maximises the distance between any two vectors from different classes in the same time (2) minimising the distance between any two vectors from the same class [2,3].
Orlando, Florida,1999 [5] I.Trendafilova, W.Heylen, Mechanical Systems and Signal Processing vol.17 No4 (2003) p. 825

The effect of additive on crystal morphology can be observed in the variation of crystal habit as well as variation in their physical and chemical properties [3].
The change of crystal morphology also can also affect the downstream processing and formulation of final crystal products [4].
Examination of atomic interaction based on the visible hydrogen bond network for (011) face demonstrated that glycine molecule disrupted the hydrogen bond network, hence affecting both the columbic and van der Waals interaction.
The Attachment Energy as a Habit Controlling Factor I.
Physicochemical Properties of Zwitterionic L- and DL-Alanine Crystals from Their Experimental and Theoretical Charge Densities.

Cr7C3 is widely used as a reinforcing phase for its outstanding properties including high hardness, high wear-resisting properties, good anti-oxidation and anti-corrosion14-16.
Properties measurements.
The “ball-on-disk” UMT-2 tribo-meter (CETR, USA) was applied to investigate the dry friction and wear properties of the cladding coating.
Both kinetics and thermodynamics factors affected the formation priority of various phases21.
[5] Yang Y, Zhang D and Wei Y, Microstructure and wear properties of TiCN/Ti coatings on titanium alloy by laser cladding [J], Surf.

Temperature dependences of the optical properties in such a type of the solar concentrators and PV properties of the cells in passive heat dissipation conditions are under consideration.
Indeed, the I-V curve fill factors FF were in the range of 85÷86% at local concentration ratios of about 5000x (see below).
It is seen from the curves for the focal distance of F=85 mm that the choice of the rated temperature for determining n affects significantly the efficiency at lens operational temperature.
Also, it can decrease due to too high local light concentration and, hence, decrease in the fill factor FF of the I-V curve.
Just this amount of luminescent photons can affect the PV parameters of a cell.

Factors, levels and ranges, along with response variables are set up
Table 1 shows factors, levels fixed for them and their designations.
Factors, levels and designations.
Factors and levels.
Properties – applications – potential, Mat.

Through data analysis, study the response of tourism interference on soil physical and chemical properties.
The research work carried out for the prairie tourist area is less, while the grassland ecological environment is very fragile and tourism interference becomes important factors.
Case study area should be able to cover most of the properties of tourist area in the same type, which can choose to study as the research object to statements common properties in the area.
Soil mechanical composition is not selected to study the changes of its physical properties in this paper.
The interference degree varied from near and far, but little change of its chemical properties.

It should be noted that, the research work is extensive and covers different aspects such as laser scanning strategies, mechanical properties, and powder nature, among others.
Many researchers have presented correlations between parameters with microstructure or mechanical properties, such as Yadollahi et al. [15].
The complex thermo kinetics of the process is influenced by the process parameters and thermo physical properties of the material.
They found that the most significant factors for the process could be classified in this order: Powder thickness, scanning strategy, linear energy density and hatching distance.
Seely, Effects of process time interval and heat treatment on the mechanical and microstructural properties of direct laser deposited 316L stainless steel, Materials Science and Engineering: A. 644 , 171–183. (2015) [16] K.