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The high piezoelectricity and high mechanical quality factor thin films are very important for the fabrications of micro devices.
The Pb(Zrx,Ti1-x)O3(PZT) thin films own high piezoelectricity, however, its mechanical quality factor is small.
The PZT thin films doped with PMnN own high piezoelectricity and high mechanical quality factor, however, the dielectric property is also important parameters for the applications in the micro devices, and so research on the dielectric property of PMnN-PZT thin films is the key point.
The research on dielectric property are also made, and the results show that the doping of PMnN into PZT causes the larger dielectric constants, however, the effects doesn’t affect the combined property of thin films if the doping ratio is smaller 6 mol percent.
In conclusion, the 6% doping ratio is the proper doping ratio, and the PMnN-PZT thin films own proper dielectric constant, besides, the 0.06PMnN-0.94PZT(52/48) films own potentially high mechanical quality factors, and these films are expected to be used in the actual applications such as ferroelectric devices, piezoelectric devices and MEMS.

The buckling of the laminated rubber-metal spring could be affected by the size of central hole, thickness and number of metal plates, the material properties of rubber, manufacturing errors and many more.
The properties of materials used in the numerical analysis are shown in Table 2.
Material properties used in the Finite Element model.
This is because of the steel material properties itself that is tough and not easy to deform.
Joseph, Mechanical Properties of Natural Rubber Latex Coagulated by a Novel Coagulant-Yeast, IJAEST, 8.2, (2011) 177–178

Based on the study of unsaturated mechanical experiment, the soil shear strength model formula can be proposed , and the changing rule of unsaturated soil mechanical properties be investigated for the typical levee soil of the Yellow River.
Introduction Affecting by the climate condition in the Yellow River drainage area, the levee soil are in the state of dry for a long time.
Unsaturated soil in the non-flood season appears great strength, less deformation properties.
According to the characteristics and physical and mechanical properties of Yellow River levee soil, the soil specimens are chosen from Shandong Dongping section of Yellow River dike.
[2] Biship A W, et al: Factors controlling the shear strenth of partly saturated coheslve soil.

The proposed relationships are based on the numerical results coming from an extensive parametric analysis performed by means of FE code ABAQUS for different materials, which gain insight into the influence of all the geometrical and mechanical parameters affecting the ultimate behaviour.
Successively, by means of monovariate and multivariate non linear regression analyses, empirical relationships are provided in order to predict the rotation capacity of RHS aluminium alloy beams starting from their geometrical and mechanical properties.
In particular, both monovariate and multivariate non linear regression analyses have been carried out leading to relationships for predicting the rotation capacity of RHS aluminium alloy beams starting from geometrical and mechanical properties.
The relationships are based on the numerical results obtained by means of FE code ABAQUS through an extensive parametric analysis for different materials and different geometrical properties [22]-[23].
‘‘Factors affecting the rotation capacity of plastically designed members.’’

In recent years, there has been an interest in the development of TiAl intermetallics because of their unique properties such as low density, good stiffness, high elevated-temperature strength, and excellent oxidation resistance.
All the materials were assumed as uniform and isotropy in this work, and the materials properties used in this calculation are listed in Ref. [9].
The effects of temperature change on the materials properties (elastic modulus, thermal expansion coefficient, poisson ratio, work hardening and yielding strength) were taken into accounted.
From this we deem that the most important factor affecting performance of joint is the distribution characterization of residual stress in the minute area adjacent to bond-line of the base material with smaller coefficient of thermal expansion and interface brittleness phase, so the distribution of stresses in this area should be concerned on when analyzing the residual stresses of joints.
Literatures show that the most important factors affecting distribution characterization of residual stresses are mechanical and physical performance of materials, namely, α, E, σ0.2, and w. α is thermal expansion coefficient of materials, it is the most important factor to bring residual stresses of joint in diffusion bonding of dissimilar materials.

Study of Mechanical and Flammability Properties of Polypropylene /Microcrystalline Cellulose Composites Filled with Nano-sized Aluminium Hydroxide (ATH) Particles N.
The mechanical properties of PP/MCC composites were characterized by tensile and impact tests while the flame properties were evaluated by UL-94 and oxygen index tests.
This problem would cause agglomeration of filler which normally lead to low mechanical properties of the polymer composite [6].
It is also noted the coupling agent did also affect the LOI and burning rate’s results; both flame retardancy properties are higher in samples with MAPP.
Mechanical and flame retardancy results also showed the effectiveness of MAPP coupling agent in improving both properties.

According to GB/T12941-2008 and GB/T 2679.7-2006, the mechanical properties of the material meet the relevant standards.
Tab.1 The factors and levels of orthogonal tests 1.2.3 Testing methods and properties (1) Tensile strength test method of GB/T 12941-2008"Paper and cardboard Determination of tensile strength" to test [1] .
Various factors of impact pierce strength against the primary and secondary: Starch dosage(A)→PVA concentration(B)→Hot-pressing Temperature(C).The best combination of test: A2B3C2. 2.2.1 PVA concentration on the mechanics properties of materials PVA concentration on the mechanics properties of materials.
PVA on bonding effect, mechanical properties of materials with PVA concentration changes as shown in figure 2, 3.
(5) Hot-pressing temperature on mechanical properties of the material.

HAp ceramics have attracted the interest because their bioactive and biocompatible properties.
Tenhuisen et al [4] and Durucan et al [5] investigated the factors influencing the kinetics of calcium deficient hydroxyapatite, CDHAp, which formed from the hydrolysis of α-TCP in an aqueous system.
The preparation and the mechanical properties of α-tricalcium phosphate/gelatin gel composite have been studied by a number of authors but HAp formation was sluggish.
The molecular weight of gelatin had no effect on the rate of HAp formation, it may, however, influence mechanical properties.
Collagen processing is the key factor affecting HAp formation.

The mechanical characteristics and electric properties of Al2O3/Cu composites sheet and hot-extruded rod were examined.
Results and Discussion Factors for Internal Oxidation in Cu-Al Alloy Sheet.
Mechanical Characteristics and Electric Properties.
Hardness is regarded as one indicator for judging mechanical working properties and also as a physical parameter indicating the ability of resisting local plastic deformation.
(2) There are three factors affecting internal oxidation of Cu-Al alloy sheet: holding-time, internal oxidation temperature and thickness of the Cu-Al alloy sheet.

Dynamical mechanical behavior of concrete with high temperature is affected by not only the strain rate effect, but also the high temperature weakening effect, and the strain rate hardening effect is coupled with high temperature weakening effect, but the latter has greater influence.
Study on high-temperature mechanical properties of concrete shows that compressive strength has obvious temperature weakening effect, namely, the strength recedes with temperature rising [7,8].
Meanwhile, to facilitate analysis of material physical properties, in allusion to the intercoupling strain rate hardening effect and temperature softening effect, two mutually independent influence factors are set, with and KT respectively employed to denote, thus stress-strain curves of concrete can be uniformly expressed as: (1) Where E0 denotes the he initial elastic modulus of material,denotes the damage quantity, and 0 ≤ D ≤ 1, it is obvious that non-linear behaviors of stress-strain curves are described completely with damage quantity, while the strain rate hardening effect and temperature softening effect are described withand KT.
(a) T=220℃, (b) T=350℃, (c) T=400℃, (d) T=600℃, Fig. 4 Comparison between own experimental results and model equation Conclusions (1) According to SPHB tests of concrete under different temperatures and various loading conditions, then high-temperature dynamical behavior of stress and strain is obtained, based on damage factors, concrete failure evolution is described, the intercoupling strain rate hardening effect and temperature weakening effect are simply set as mutually independent factors, then uniform expression of concrete stress-strain curve is established
(Advances in Mechanics.2006.36(3):389-405) [4] Jia Bin, Tao Junlin, Li Zhengliang,Wang Ruheng, Zhang Yu: Effects of temperature and strain rate on dynamic properties of concrete.