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With the sintering temperature, the sintered body was investigated with shrinkage, crystal phases, thermal properties, and mechanical properties.
The residual glass affects disadvantages in LTCC with low strength and poor microwave properties [2-6].
With the sintering temperature, the sintered body was investigated with shrinkage, crystal phases, thermal properties, and mechanical properties.
The porosity is closely related to the mechanical properties.
The results suggest that improving the mechanical properties may lower the porosity and optimal crystal phase.

Tab. 1 The frequency of Natural earthquake Magnitude (ML) 0＜ML≤1.0 1.0＜ML≤2.0 2.0＜ML≤3.0 3.0＜ML≤4.0 In total earthquakes 37 241 37 3 318 Compared to the case 11.64% 75.79% 11.64% 0.93% 100% Within the continental plate tectonic deformation and seismicity in the study, focal depth is the study of tectonic activity and tectonic deformation and mechanical properties and mechanical behavior.
Long ditch meiyukou coal mine, coal mine well as part of the body of the tectonic plates, is also affected by the plate tectonic collision compression, cause the regional crustal stress and the redistribution of energy in the body, the elastic deformation energy accumulation over ground bearing capacity, the shell when the external force caused by energy released will be associated with the occurrence of disasters such as earthquakes.
When gathering energy engineering areas affected by mining engineering activities, undermining the balance system will cause the release of energy, the energy will cause mine dynamic disasters.
Because is not affected by the interference of human activities, natural earthquake activity is the most true objective of tectonic activity and the change of stress field.
(4) power mine disasters not only affected by the tectonic activity and the change of stress field, and the thickness of the roof strata characteristics, big mining stress field caused by mining depth and preventive measures, natural earthquake activity results only reflect the tectonic activity and the change of stress field of law, its only for mine power disaster prediction, prevention and control to provide the reference, cannot ignore other factors and human disturbance factors.

The influence factors are roughly divided into natural factors and mining technical factors.
The selection of roadway stability classification indexes should follow the principles as below: (1) Importance: when choosing indexes, the more important factors should be considered while the factors with less affect ignored, and the importance of each index must on the same level
However, the roadway has complex geological conditions, affected by so many factors that rock joints and fissures, hydrological factors cannot be taken into account with single physical and mechanical index, thus the surrounding rock stability could not be accurately reflected.
But in most kinds of the classification with comprehensive indexes method, the indexes focus on several main influence factors that not all the influence factors can be reflected, also, some factors decided by experience would affect the surrounding rock stability judgment.
The above analysis illustrates that many factors influence the surrounding rock stability, and each one represents a certain property, therefore, choosing main factors as the stability classification indexes is essential for evaluating the surrounding rock stability comprehensively.

A study on machinability performance of silicon carbide paticulate reinforced metal matrix composite R.Ganesh , R.Satyaprakash, M.Prakash and K.Chandrasekaran Department of Mechanical Engineering, R.M.K Engineering College, Kavaraipettai, Tamilnadu, India 601 206.
Introduction The important factor that prevents the manufacturers from using MMCs is the difficulty in machining these materials [1, 2].
However, MMCs have outstanding properties such as high specific strength, high specific modulus, low ductility, high wear resistance, high thermal conductivity and low thermal expansion, because of the existence of hard ceramic reinforcement in their structure, they are difficult to machine [3].
The testing conditions, material properties and sintering temperature influences the surface roughness of the hole in a significant manner.
Reilly, Factors affecting the machinability of an Al/SiC metal matrix composite.

Analysed data of crack growth and threshold conditions are a basis for an application of damage tolerance philosophy, which is in case of pressure vessels quite a complicated task due to several reasons: combination of high cycle and low cycle loading with overloading cycles and a very large number of affecting factors as regards corrosion environments like load frequency, waveform, strain rate hold time, environmental parameters - solution composition, corrosion potential, etc. [1,2].
Mechanical properties were: strength 634 MPa, yield stress 507 MPa, ductility 22 %, reduction area 68 %, notch toughness 210 J/cm 2.
The dependence of U-ratio on the actual stress intensity factor range ∆K related to the FCG diagram is shown in Fig.1. 1.E-10 1.E-09 1.E-08 1.E-07 1.E-06 1.E-05 1.00 10.00 100.00 Delta K / Delta Keff (MPa m1/2) da / dN (m/cycle) Delta K (air) Delta Ke ff (air) y = -1.123E-09x6 + 2.812E-07x5 - 2.770E-05x4 + 1.374E-03x3 - 3.619E-02x2 + 4.810E-01x - 1.567E+00 0.2 0.4 0.6 0.8 1 1.2 5 10 15 20 25 30 35 40 Delta K (MPa m1/2) U = Keff / K K/Keff (air-extrapolated) K/Keff (air-measured) Fig.1: FCG in pressure vessel steel in air, R=0.1 evaluated as dependence of both both ∆K and ∆Keff Fractographical analyses were carried out to explain the crack closure growth in the nearthreshold region.
Oung: Factors Affecting the Crack Growth Rates of Reactor Pressure Vessel Steels under Simulated Boiling Water Reactor Conditions.

Fig. 1 Underground proppant Fig. 2 Finite element model Material Properties.
Material properties are shown in Table 1.
Table 1 Material Properties Elastic modulus /GPa Poisson's ratio Proppant 200 0.28 Tight Sandstone 50 0.3 Fig. 3 Load and Constraint Model Load and Mesh.
[8] Qi M H , Wu X X, Shi R Y, et, al .Effects of Pore Size on the Mechanical Properties of HGM [J].
Study on the factors affecting proppant embedment [J].

Vehicle collision avoidance radar should have good anti-interference ability.Since the road conditions of freeway are complicated, anti-collision radar is exposed to ambient reflections, other vehicle electromagnetic interferences and many other factors.
In fact, because of the laser ranging is easy to be influenced by the weather, a laser transmitting and receiving mirror cleanliness, is a measure of the vehicle and the obstacle itself surface roughness, pollution and vehicle vibration and other factors, so that the laser radar detection range precision and the degree of accuracy are difficult to guarantee .
Ultrasonic ranging.Ultrasonic (of a frequency above 20kHz mechanical wave) as a special acoustic, acoustic transmission has the same basic physical properties -- reflection, refraction, interference and so on.
But affected by weather condition influence of ultrasonic ranging, short detection range, mainly used for reversing anti-collision system.
In this respect, comparing to the laser, ultrasound, infrared distance measurement has obvious advantages, not because of the weather factors influencing the stability range. 2) Strong ability to adapt to the environment Millimeter wave radar penetrating ability is very strong, its location accuracy affected by rain, snow, fog, and the sun and other weather conditions and the noise, pollution and other environmental factors is small, it can ensure the vehicle in any weather under normal operation.

The understanding of mechanical properties under magnetic field is very important for their application to vibration power generation devices.
ν[110] ν[001] -2.53 3.53 Table 5 Poisson’s ratios for mechanical loading.
They are compared to the mechanical ones.
It was found that volume strain and oriented ratio of initial magnetic domain are additional factor for magnetostriction.
Furthermore, it was found that the magnetostriction of [110] was also affected by elasticity.

They are used to obtain appropriate properties of adaptive structures.
The study [8] also concluded that the cantilever beam with such local treatment exhibits greater sensitive than the full treatment with regards to the natural frequencies and loss factors.
In following considerations it is assumed that homogenous magnetic field of strength H will be affecting on the chosen part of the beam.
Three-layered beam with MR fluid and magnetic field affecting on the part of the beam are schematically presented in Fig. 2.
Rao: Mechanical Vibrations (2011) [17] J.

Effect of liner laser irradiation on bending properties of thin high carbon steel plate was investigated in this study.
Most of steel parts are made from steel with uniform mechanical properties generally.
Bending properties by three points bending test were evaluated by the comparison with as-receive state.
Flexural load-deflection curve. 3 point bending test was carried out in order to evaluate bending properties of linear laser irradiated thin high carbon steel plate.
Ratio of depth of laser-transformed zone and thickness of steel plate d/h affected bending property.