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The spontaneous phase transformation of the unstable phase II to the stable phase I of isotactic polybutene – 1 can be affected by several factors (temperature, pressure, mechanical deformation, environments, nucleation agents or presence of –CH2- groups in polymer chains or in blends).
The resulting polymer has a high molecular weight, which contributes to excellent physical, mechanical and chemical properties (such as creep and cracks resistance, good mechanical properties and excellent elastic recovery, resistance to many chemicals; physical, environmental stress cracking effects and high temperatures).
Influence of Crystal Polymorphism on the Three-Phase Structure and on the Thermal Properties of Isotactic Poly(1-butene).
The effect of some physical factors on the phase structure of isotatic polybutene-1, Materials Structure. 2015, 22(3), 21-25
In: Electronic Properties of Materials.

Sensitivity of each factor affecting shear strength is evaluated.
The composite wall composed of light-weight infill block with appropriate strength in MRSS makes full use of mechanical properties of the blocks beyond its traditional function of space division.
Fig. 2 Significance analysis on influence factors of wall Out\Inp FCC FTC FTQ BC HC BQ HQ FY AS VV 0.205 0.515 0.812 0.099 0.080 0.082 0.073 0.141 0.054 Conclusion: Ultimate shear bearing capacity of multi-ribbed composite wall varies with failure process and is impacted by many complex factors.
Based on experimental investigation and mechanical analysis, the shear resistant expression of wall is suggested to represent contributions of main factors and reflect natural mechanism of shear resistance of wall.
Significance analysis on main factors influencing shear capacity of wall shows that infill block is the most notable factor for its great changeability in tensile strength.

To explore slag glass micro composition and structure of its active role, The slag micro-structure was analyzed from the structure levels, and then the factors affecting the activity of slag was evaluated.
The Influencing Factors of Slag Activity.
Many factors are influencing the potential activity of slag.
(2) Chemical composition The chemical composition of slag is a essential factor affecting the slag’s hydration activity, but it cannot fully and accurately express the slag’s hydration activity.
Some engineering properties of slag concrete as influenced by mix proportioning and curing.

In order to improve the life of seal products, the mechanical properties, elasticity and oil resistance, and the wear and antifriction properties of materials must be considered.
In many cases, the rubber material through its surface and surface properties to participate in the work.
The modification by changing the surface properties of the rubber can meet the specific purpose or to give the rubber some special properties based on that it does not affect the substrate nature of the rubber.
This paper tests the friction properties of the sample under the conditions of dry friction and water lubrication.
[5] Slusarki L, Bielinsli D M, Affrossman S: Surface modification of elastomers to improve their tribological properties.

In high strength concrete a proper binder content is one of the important factors to have a high compressive strength.
The properties of coarse aggregate such as: water absorption, shape, aggregate strength, and surface texture, play a role in the effect of HSC mechanical properties.
Properties of coarse aggregate.
Maslehuddin, “Effect of coarse aggregate quality on the mechanical properties of high strength concrete,” Constr.
Zhang, “Effect of coarse aggregate type on mechanical properties of high-performance concrete,” Cem.

Introduction Rock mass in-situ stress field is affected by several factors, among which the effect of the structural plane is quite significant and also quite difficult to precisely evaluate, using numerical method to analyze this problem is necessary and feasible.
Considering the complexity of the mechanical properties of the structural plane, it is generally simplified in numerical model, usually adopting rigid or linear deformation model[3,5], but the linear deformation model could not precisely reflect its actual physical and mechanical properties, several non-linear deformation structural plane have been proposed, among which the Barton-Bandis hyperbolic model is widely used[6,7].
Fig.7 shows the distribution of stress concentration factor of the maximum principal stress in the affected zone.
Actual structural plane deformation is non-linear, deformation stiffness is related to the physical and mechanical properties of the structural plane, and vary with the load, the BB hyperbolic model could well reflect the actual deformation process of the structural plane under load.
Effect of Physical and Mechanical Properties of Rocks on Stress Field in Vicinity of Fractures [J].

Liquid damper are used for partial suppression of impact energy, reducing longitudinal tensile and compressive forces affecting the structure of the vehicle.
A study was made of the mechanical properties of transverse samples cut from hot-rolled bars of several batches.
Subsequently, the modes providing the primary measure were checked by the level of mechanical properties in the body of the barrel.
Table 5 shows the results of the assessment of the mechanical properties of the casings processed according to modes A and B.
When analyzing the effect of holding time on the hardenability of steels with excess nitrogen, two factors should be considered.

The mechanical properties of high-Cr white cast iron are affected by the structure and appearance of carbides as well as the degree of bonding at the carbide-substrate interface [1,2,3,4].
The rate of solidification determines the size and distribution of carbides[5], which influence the mechanical properties of the cast alloy.
Too low or too high carbon content will produce hypoeutectic and hypereutectic cast iron, respectively, with large variations in mechanical properties, in particular, toughness.
The effects of fluid convection during casting on the mechanical properties and microstructure of the solidified iron were explored.
Factors such as gravity and direction of thermal convection will affect the solidification of fluid in these three zones, producing cast iron with different features and properties.

(a),(c): with mechanical grinding; (b),(d)without mechanical grinding.
Fig. 6 Effect of NaHCO3 aqueous solutions concentration on the particle size, UV shielding property factors, (a) particle size; (b) UVA/Vis factor ; (c) UVB/Vis factor.
Figure 6 summarized the effect of sodium hydrogen carbonate concentration on the final CeO2 particle size and UV shielding property factors.
It was also confirmed that the particle size had a great affect on the UV shielding properties of the thin film consisted of the plate-like ceria particles.
Especially, the products showed excellent multifunctional properties such as excellent UV-shielding property as well as excellent comfort.

In this study, we conducted the experiments to reveal how anisotropic properties of polymetric materials affect to the deformation behaviors near the crack-tip under equal and unequal biaxial stress conditions.
Figure 2 and Table 1 show the shapes, dimensions and optical properties of the specimens.
We examined how the isotropic and anisotropic properties of the polycarbonate materials affect differently on the crack-tip under equal biaxial stress by using photoelasticity and the caustic method.
We examined how the isotropic and anisotropic properties of Fig. 9.
Conclusions The stress intensity factors, KI, KII of polycarbonate band plates with isotropic and anisotropic properties under equal and unequal biaxial stress conditions were found by photoelasticity and the caustic method, and compared.