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Carbon fiber, having good mechanical, electrical, magnetic and thermal properties, is a kind of excellent modification component for cement-based composites.
Electrical properties of the composites do not from simple mixing effect, but the jointing effect.
The electrical properties of the composites reflect situ characteristics of component materials.
As a jointing effect, the electrical properties of the composites will be affected by many factors, such as microscopic heterogeneity, fabrication process and some other random factors[5-7].
Conductive mechanism of cement matrix Electrical properties of cement matrix.

González et al. [21] also reported that the modulus of elasticity is the most affected property.
Experimental Program Materials properties.
To explain the decrease in the various mechanical properties of BWC, SEM observations on both concrete mixtures B0 and B100 were performed.
It also highlights that BWA porosity, mechanical properties and volume fraction govern in a large way the BWC elastic modulus and mechanical strengths.
Cachim, Mechanical properties of brick aggregate concrete, Construction and Building Materials, 23 (2009) 1292–1297

Physical properties test by x-ray diffraction (XRD) and fourier transform infrared (FTIR) shows highly crystalline of CNF which indicates improvements the mechanical properties of PVA/CNF nanocomposite film.
The aspect ratio is the ratio between the size of length (L) and diameter (D) of the CNF which is an important factor to mechanical properties of CNF as reinforcement in matrix.
The unhomogeneous of the CNF in PVA will result non-optimum mechanical properties of PVA/CNF nanocomposite film.
That causes the mechanical properties of PVA / CNF nanocomposite films was increased.
Kurniawan, Influence of polyvinyl alcohol molecular weight on the electrospun nanofiber mechanical properties, procedia Manufacturing 2 (2015): 568-572

As one of the major factors comprising phagocyte transmigration, previous studies hypothesized that histamine might play an important role in the recruitment of inflammatory cells to implants [2].
However, the numerical solutions failed to symbolically show the direct relationship between the models parameters and could not also provide good and continuous insights into the significance of various process parameters affecting the phenomena.
Porous substrates and angiogenic growth factors can stimulate formation of microvessels, which, to some extent, can maintain analyte delivery to implanted sensors.
It is probably also necessary for other growth factors to act upon immature vessels to mature the fragile microvessels into more robust vessels.
As one of the major factors comprising phagocyte transmigration, previous studies hypothesized that histamine might play an important role in the recruitment of inflammatory cells to implants.

Dimensional analysis was utilized to identify the scaling variables affecting the stresses.
Introduction For technological application, depositing protective coatings onto the surface of a load-bearing substrate has been widely used to enhance certain mechanical properties [1].
The objective of this paper is to find what and how parameters affect interfacial stresses and thus possible coating debonding.
The tempered LQZs will experience phase transformation and hence result in volumetric shrinkage, the degree of which depends on many factors, for example, carbon content, temperature, etc.
Guo, Practical Handbook of Thermophysical Properties, Chinese Agricultural Press, Beijing (1986) (in Chinese).

Such properties may include excellent ductility and strength properties, wear resistance, corrosion resistance, thermal stability, etc.
In a two-component alloy system, solubility can be determined by the Hume-Rothery rule, which states that the lattice structure, atomic size difference, chemical valence, and electron structure of the two constituents are the main influencing factors.
This is related to the size, shape, distribution of the phases and their properties.
Mechanical Alloying.
Lin, Electrical, magnetic and Hall properties of AlxCoCrFeNi high-entropy alloys, J.

However, the slide-guide dynamic friction properties were found to vary with external load, speed, and running time, thus affecting motion precision [1].
Such connection joints form weak links between components and greatly affect the overall stiffness and mechanical characteristics of the assembled structure [2].
Besides, the contact stiffness of a sliding surface is the function of interface pressure distribution, which was verified to be an important factor affecting the contact stiffness and the machining performance [5].
Kh represents the Hertz constant and is determined from the contact geometries and material properties of the contact bodies [7,8].
Sliding interface The contact properties of the elastic interface layer such as Turcite-B in the sliding guide system can be modeled by the following exponential relationship [1] (3) where dn is normal deformation (mm), Pn is normal pressure (N/mm2), Cn is coefficient of normal contact flexibility, and m is coefficient of non-linearity of deformations.

,Beijing,100013, China 2Coal Mining and Design Branch, China Coal Research Institute, Beijing, 100013, China alvhuawen2005@126.com Key words: coal mine;soft rock chamber; bolt-grouting support; surrounding rock control; strata behaviors Abstract: The soft rock stratum, possessing the characteristics of poor anchorage and large deformation, is frequently encountered in underground coal excavation where stability of the whole mining structure is always affected by the soft rock.
Problem formation Surrounding rock of chamber in ShiTanJing coal mine possesses the characteristics of poor anchorage and large deformation, the primary factors that significantly affect the utilization of chamber in coal mining.
Rock mechanical properties are key parameters in surrounding rock support design of chamber.
Thickness [m] Rock type RQD Elasticity modulus [Gpa] Poisson ration Uniaxial compressive strength[MPa] Cohesion [MPa] Internal frictional angle [°] 1.7 Carbon mudstone 30 24.8 0.27 32.34 9.87 29.63 7.8 Mudstone 30 15.2 0.30 25.91 7.55 27.2 5.0 Coal 0 － － 10.31 － － 2 Carbon mudstone 0 － － 21.32 － － Table 1 Main parameters of surrounding rock The rock softening property is also investigated due to the fact that coupling of rock deformation and water flow is frequently encountered in coal mining.

The dynamic shear rheometer (DSR) was used to measure viscoelastic properties of asphalt mastic.
Introduction The quality of mastics, mixed with asphalt binder and fillers, influences the overall properties of asphalt mixture.
In other hands, effective elastic material properties can be directly converted to viscoelastic properties using the correspondence principle on the basis of the Laplace transform and Carson transform [6].
A mechanical mixer was used to blend the fillers and asphalt binder at 160°C.
Interaction capability of asphalt and aggregate is a crucial factor to affect the engineering performance of asphalt mixtures [4].

Some data indicate that the presence of Weld mechanical properties of ABS products may have about the loss of 10%—30%，PMMA, PS and other products about the loss of more than 30%.
Influential factors of the weld line The functional structure of plastic products.
There are many factors such as various types of inserts, holes, grooves structures, which will produce flow branches.
As a consequence, the weld strength will be affected seriously.
Moreover, vertical gate in Fig. 3 weld lines not only affects the appearance, but also affects the strength of the product.