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While, the effect of Na2O on microwave properties of CBS glass-ceramics was not widely investigated.
Also, the physical properties of the optimized addition such as dielectric properties, thermal properties and mechanical properties were also evaluated.
However, the liquid phase has obvious effects on the sintering properties, but the dielectric properties also appear to be affected.
This meets the requirements of factors is suitable for using in LTCC substrates fabrication.
The behavior of dielectric constant is similar to that of the bulk density, indicating that microstructure is the important factor influencing the dielectric properties of the samples.

In addition to mechanical loads, aerospace technology is also affected by thermal loads, which can affect not only the mechanical integrity of the satellite, but also the operation of its equipment.
Physical-thermal properties of carbon fabric.
These parameters for the construction of Plain, Twill and Satin weaving structures were the same because carbon fiber properties for different weaving were also the same in our study.
S., Evaluation of forming properties of fabrics from carbon, glass, and organic fibers Polymer Science.
Investigation of the influence of the fabric structure on the kinetics of its impregnation process in the production of carbon fiber parts Physics of fibrous materials, Structure, Properties, High-tech technologies and materials (SMARTEX) - No.5 (2018) 11 – 15

The hexagonal metallic materials such as magnesium and titanium alloys, which have many advantages of low density, high specific strength, thermal properties, damping capacity, fatigue properties and machinability, provide great potential to reduce weight and replace the commonly used structural materials [1-3].
Hexagonal materials are generally characterized by highly anisotropic mechanical properties due to the pronounced texture that develops after deformation processing.
This is reasonable that the schmid factors for different deformation modes depend on the corresponding specific crystal orientation under the identical applied stress tensor.
The plate texture basically affects the subsequent production process and the resulting mechanical properties.
By comparison, increasing the friction coefficient is an efficient means for weakening the basal texture and improving the forming properties.

Various parameters that affect the machining processes were identified and a consensus was reached regarding its values.
Introduction Titanium and its alloys has played a significant role in the field of aerospace, energy, chemical and bio-medics due to its high strength to weight ratio and exceptional mechanical and chemical properties.
Feed four factors considered for the experiment.
For a 4 factor 3 level experiment more than 80 experiment have to be carried out leading to a very huge expenditure and waste of time.
Ghani ,International Journal of Mechanical and Materials Engineering (IJMME), Vol. 4 (2009), No. 2, 191-196 [2] X.Yang, C.R.

However, the excellent mechanical properties can be disturbed by the local heating during fusion welding, producing poor impact toughness in the weld metal and heat-affected zone (HAZ).
The mechanical properties of SM570-TMC and E81-Ni1 are presented in Table 2.
Chemical composition and mechanical properties of parent metal SM570-TMC were measured from experimental material, while the E81-Ni1 wire properties were as received.
It may affect to degrade the mechanical properties.
Wang, Effect of heat input and M-A constituent on microstructure evolution and mechanical properties of the heat-affected zone in low carbon steel, Journal of Wuhan University of Technology-Mater.

Introduction Fatigue failure is the dominant failure phenomena in various mechanical components that are subjected to cyclic loading even at below yielding stress.
The mechanical properties are: 449 MPa tensile strength, 283 MPa lower-yield strength, and 69% reduction of area.
The position of stop-hole affects slightly on the fatigue crack growth behavior.
Therefore, applying the stop-hole was not affect on the improvement of the fatigue life of the specimen with narrow width.
The stress concentration factor, Kt and stress intensity factor, KI was calculated to analyze the effect of stop-holes on fatigue crack growth behavior.

Introduction With the rapid development in the field of radio astronomy in China,the better electrical properties of the antenna is under construction.
During parameters of large diameter antenna’s electrical performance,gain reduction factor(efficiency) and gain are important and they have close relationship with sensitivity and resolution[1].So as high reliability and precision antenna must ensure that such parameters are always in the optimal state.Large-diameter antenna’s efficiency and gain always be reduced by a variety of factors,where the deformation of the antenna structure is a more direct factor.
Antenna parameters about electrical properties 1) Efficiency The efficiency of large-diameter reflector antenna is an important parameter to measure the electrical performance of the antenna,and it can be shown like this: (1) Where Aeff,0 is the maximum effective area of the antenna,Ag represents the geometric area of the antenna.Gravity deformation which is caused by elevation change will reduce accuracy of antenna’s main panel and then affect the electrical properties of antenna[5].The geometric area of antenna can not be changed,so if efficiency reduces,maximum effective area of main panel will reduce.
Through the analysis of model geometry and stress state,combining with unit libraries and their properties of ANSYS,after simplification the surface of the central body will be composed of different shapes,which can be replaced by shell unit Shell63,brace of antenna and bracket of feed can be replaced by beam unit Beam4.Materials of units are all replaced by steel.
After finishing building model,type of unit, the correspondence between the name and number of the antenna 25 m are shown in Table 1.Material and properties is shown in Table 2.

The fillet diameter, the inner cone angle, the length of mixing tube of the nozzle greatly affect the field of two-phase flow.
In addition, the volume concentration of each phase, the grain grit, the physical property (density, viscosity etc), and the relative velocity between two phases changed in a broad range.
The model is divided by the triangle cell, the previous experiments indicate the factors which affect the field of two phase flow are the cone angle, the fillet diameter and the length of mixing tube.
The simulation results also indicate that the cone angle in the nozzle affects the tension of the swirl, and the smaller of the cone angle the easer of the flowing.
The simulation results indicate that the fillet diameter, the inner cone angle, mixing tube of the nozzle greatly affect the field of two-phase flow.

Steels with bainitic microstructures and retained austenite can own these properties.
The chemical composition and the technology have an impact on the development of these processes, which in turn greatly change the microstructure and the mechanical properties.
After deformation, the main factor, which affects the microstructure and mechanical properties, is the accelerated cooling rate during the phase transformation.
Simulation of hot rolling The experimental simulation of the rough rolling, finish rolling with subsequent thermo-mechanical treatment were realized on the Gleeble HDS-V40 thermo-mechanical simulator by means of the plane strain compression test.
The effect of the finish temperature of the accelerated cooling on the microstructure and mechanical properties has been already studied and reported in [8–10].

Influence Factors Analysis During the deep foundation pit excavation, the soil mass will be changed to initiative pressure state from the original static pressure state, which will arouse soil deformation.
The main influence factors affecting the stratum movement are as follows: soil upward raise, displacement of the maintaining wall, underground water, correlation factors of the stratum moving.
Above all, the uncertain factors of underground project must be considered.
Conclusion (1) The main factors that influenced subsidence of building around the pit include ground water running off, the soil disturbance caused by drilling and base form of buildings, etc
Wang nuarrtang, Monitoring technology in mechanical deformation of protected construction in deep foundation ditch.