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Introduction With the rapid development of industrialization, the incidence of pelvis fractures are more and more, the incidence of pelvis fracture is about 20-37 per 10 million, sacral fractures, which make up 20% to 30% of pelvis fractures[1] , seriously affect people’ lives.
Treated by surgery or non- surgical treatment, determined by two factors : the stability of the pelvis and the extent of involvement of the nervous system[3] .
Three-dimensional meshes for pelvis The material properties for the former three-dimensional FEA model of pelvis respectively were given, the material properties of pelvis is cortical bone and the internal fixation implants are titanium alloy.
Material properties of Models as shown in Table 1.
Table 1 Material properties used in the finite element model Young modulus(E,MPa) Poisson ratio Cortical bone 16700 0.3 Titanium alloy (Ti6Al4V) 105000 0.3 The boundary load and boundary condition consistent with the physiological conditions were used for all three-dimensional FEA model of pelvis.

On the basis of the study mentioned above, the formation mechanism and influencing factors of the landslide are deeply analyzed.
On the basis of the study mentioned above, the formation mechanism and influencing factors of the landslide are deeply analyzed.
Formation Mechanism Analysis Influence Factors.
The sliding zone is softening by the water of reservoir and the mechanical strength is reduced.
The landslide stability is affected seriously under the Three Gorges reservoir operation, which will seriously endanger people's lives and property safety.

Thus, the thermal properties of the AA7075, such as thermal conductivity and the coefficient of thermal expansion, are considered temperature-dependent.
Significant plastic deformation occurs in FSW due to the tool-workpiece interaction, essential for shaping the welded connection and affecting the weld's presence of defects.
Luan, Investigation of microstructures and fatigue properties of friction stir welded Al–Mg alloy, Materials Chemistry and Physics 98 (2006) 285-290
Prasad, Effect of Tool Rotational Speed on Mechanical Properties Of Aluminium Alloy 5083 Weldments in Friction Stir Welding, Materials Today: Proceedings 5 (2018) 18535-18543
Derazkola, Investigation of the Effects of Tool Positioning Factors on Peak Temperature in Dissimilar Friction Stir Welding of AA6061-T6 and AA7075-T6 Aluminum Alloys, Materials (2022)

These materials not only lead to reduction CO2, development of fresh and mechanical harden properties of concrete, but also utilize the industrial by-product which needs more landfill and waste disposal.
However, the presence of carbon influences fresh properties of concrete.
Bayasi, Effect of curing procedures on properties of silica fume concrete, Cem.
Pera, Pozzolanic properties of pulverized combustion bottom ash, Cem.
Sevinc, Effects of colemanite waste, coal bottom ash and fly ash on the properties of cement, Cem.

Lee and Kuo [12], studied the microstructural and mechanical properties in alloy 690 weldments.
Iwuoha [15], studied the influence of electrode coating on mechanical properties of structural steels.
Therefore, there is need to determine how the electrode covering affects the overall mechanical properties of ASS weldments.
Raj, (2002): Determination of Gradients in Mechanical Properties of 2.25Cr-1Mo Weldments Using Shear-Punch Tests.
Kuo, (1999): Microstructure and mechanical properties in alloy 690 weldments.

Furthermore, properties (e.g., a high surface-volume ratio, high mechanical resistance to wear, for and high thermal conductivity, etc.) are unavoidable for being a good braking material.
Properties of Stainless Steel at 20˚C [10].
These differences can be explained as a consequence of better mechanical properties of Ti-6Al-4V like strength-toughness combinations and stiffness as compared to Stainless-steel.
Since the thermal changes affect the physical properties of the disc significantly, if the analysis would have been performed without importing the thermal load the results for stress and deformation show significant decline.
Material used for the disc is one of the most crucial factors that affects the results.

Virgin aggregates properties.
Characterization of viscoelastic properties.
Determined viscoelastic properties of the material are introduced into the FE model.
Material properties.
Figure 9 shows the shift factors calculated with WLF at 15°C temperature for BBREF_5,3 and BBRAP_3,7.

A bioburden test method relying on mechanical agitation was established.
The medical device itself and its application will also affect the package design.
Loss of hydration during packaging and shelf-life causes changes in scaffold architecture and leaching of growth factors [16].
These were classified based on their macroscopic properties and labelled A - F Table 2).
Plikk, P., et al., Finalizing the properties of porous scaffolds of aliphatic polyesters through radiation sterilization.

For these applications, it is important to investigate the fabrication and physical properties of lithium ionic conductors.
The study of lithium ion-conducting inorganic oxides is particularly important because of their high chemical stability and mechanical strength.
Therefore, we believe that studying the physical properties of non-rare or less-rare earth materials is also important.
Although the data slightly depend on the sample and the error is slightly large, these results suggest that structure modulation of the Li2GexSi1-xO3 framework affects ionic conduction.
Fig. 8 The x dependence of pre-exponential factor in Eq. (3).

It plays an important role in defence, building, transportation and chemical industry in the form of resin and composite material[1] due to their low price, high mechanical strength, inflaming retarding, low smoke and self-extinguishing properties.
Many papers report on the reaction condition, influence factors, mechanism and modification of phenolic resin using alkali metal hydroxides, alkaline earth metal hydroxides, carbonates, ammonia and sodium hydroxide as catalyst.
Besides, reaction time has great effect on molecular weight and therefore influences the properties of phenolic resin.
In water, sodium hydroxide ionizes to a lot of hydroxyl ions and affects the reaction greatly.
Since para-position hydroxymethyl group is not affected by space and chemical effects of phenolic hydroxyl and benzyl alcohol, dehydration between para-position hydroxymethyl groups and the active para-hydrogen[6] on phenolic ring dominates, thus leading to para-para position linkage[8-9].