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Due to the uncertainty of geological structure, the specificity of the underground environment as well as other factors, the quality and performance of supporting structure are often difficult to satisfy the design requirements, which not only seriously affects the normal construction and operation of mines but also has the potential threat to the safety of underground production.
But in the actual investigation of roadway supports, due to the uncertainty of geological structures, the specificity of the underground environment as well as other factors, the quality and performance of supporting structure are often difficult to detect accurately, and there often exist some potential defects that do not satisfy the design requirements, which not only seriously affects the normal construction and production of mines but also has the potential threat to the safety of underground production [1].
Finally, compression test was performed on cured core samples in accordance with Standard for Test Method of Mechanical Properties on Ordinary Concrete [6].
Conductivity affects the penetrating depth of electromagnetic impulse.
Objects or areas with different electrical properties will reflect the impulse differently, and appear as anomalies [11].

The experiment results indicate that sticking sand on epoxy resin-impregnated textile and reduced cover thickness are helpful to improve the mechanical performance of the component; the textile with 10mm×10mm mesh size is superior than that with 20mm×20mm mesh size regardless of in the respect of enhancing the bearing capacity of the TRC or in the respect of controlling matrix cracking; the novel method of adding U-shape iron hook not only can improve the bonding performance between the textile and the concrete, but also can enhance the shearing capacity of the concrete..
The mechanical behavior of TRC members is intensively associated with the interface bond behavior between the fiber and the matrix, which is influenced by the property of matrix and the fabric geometrical characteristics which relate to the type of knitting, mesh size, the type of fiber and textile surface treatment methods.
(a) 20mm×20mm Textile (b) 10mm×10mm Textile (left: before impregnated, right: after impregnated by epoxy resin and covered with sand ) Fig.1 Geometry of hybrid textiles Table 1 Properties of hybrid fabric Reinforcement Tensile strength(MPa) Modulus of elasticity (GPa) Ultimate strain (%) Titer of single Roving(Tex) Density (g/cm3) T700S 4660 231 2.0 801 1.78 E-glass 3200 65 4.5 600 2.58 Fine grained concrete.
For the TRC, the fine grained concrete were specifically chosen, whose mix and properties were shown in Literature [8].
Fig.7 Comparison of specimens with or Fig.8 Failure photo of the specimen with no without U-shaped iron hook U-shaped iron hook Conclusions The structure form of the textile, the cover thickness to the textile and the bond between the textile and the concrete are the important factors in affecting the mechanical performance of the thin-walled TRC competent

It is shown that a mechanical joining of aluminum and glass is possible.
The limiting factor is the strength of the glass, which is breaking during the tensile tests.
Only the aluminum sheet is affected by the shock wave pressure.
Because the glass substrate is the limiting factor of this connection during the tensile tests.
Otto, AT-Fachverlag, Stuttgart, p. 557-562 [14] Radziemski, L.J., Cremers, D., Niemczyk, T.M. (1985), Measurement of the properties of a CO2 laser induced air-plasma by double floating probe and spectroscopic techniques, Spectrochimica Acta Part B Atomic Spectroscopy 40, 517-525

In transportation industry such as aerospace environment, the material has to present damage tolerance corresponding at least to the standard 2024-T3 material properties.
It can be even so noticed that Krs in 6056-T78 is higher than in the both other materials; it is in accordance with the tensile properties.
The curves are even more comparable between the factors studied with CCT specimens.
Both heat treatments conditions as-welded and post-welded, applied to material 6056-T78, showed the comparable crack propagation, even if post-welded treatment is recommended in term of mechanical properties.
[7] Lafly A-L, Alléhaux D, Marie F, Dalle Donne C, Döker H: " Impact of Friction Stir Welding Techniaues on microstructure changes and mechanical properties", 58th Annual Assembly and International Conference of International Institute of Welding (IIW), Prague, 10-15 July 2005

The mechanical and soldering properties are also similar to that of it.
The formation of solid solution can fine the microstructure of Bi and enhance the mechanical properties of the solder.
Mechanical and Soldering Properties The stress load of welding point in practical application mainly comes from shearing force, so the shear strength is one of the important mechanical factors of solders.
Meanwhile, Bi dispersedly distributes on the base frame of solders and reinforces the mechanical properties of solders, therefore the shear strength increases.
Therefore, the solder can be handled in wave soldering and reflow process without quite apparent change both in microstructure and mechanical or soldering properties

When the nitrogen content is 0.28%, the optimum mechanical properties of 06Cr19Ni10 steel are obtained.
It can be seen from the figure that N significantly affects the room temperature impact properties.
Tested steel tensile properties at room temperature.
Plastic flow behavior and its relationship to tensile mechanical properties of high nitrogen nickel-free austenitic stainless steel[J].
The effect of the solution treatment onto the microstructure and mechanical properties of MAG pulsed welded joints from X2CrNiMoN22-5-3 duplex stainless steels[J].

The investigations show that the components fabricated by laser cladding process have better mechanical properties than that of the conventional manufacturing technology.
It is also aimed at understanding relations between the main laser cladding parameters and characteristics of cladding components and obtaining the superior properties.
We select the credibility more than 85 percent of the factors as important factors.
Three factors and three levels test was selected.
The results indicate that: the mechanical properties of components fabricated by laser cladding prototyping have been improved by the laser cladding rapid manufacturing.

Cooling rate might affect the quality of crystallization, but below 5℃/min had no difference.
For this aim, we identified the adequate operating condition for high-quality materials and studied the influence of the individual factors on the quality of slags and the quality improvement process.
Therefore, the crystallization process is proved to enhance the mechanical properties of slag.
According to the rise in the temperature for crystallization, the number of particles on precipitate tends to rise, which will tremendously contribute to the high-quality mechanical properties of slag due to structure solidification, particle strengthening, or cracking deflection. 2.
It would be economic to manufacture crystalline slag with more rapid cooling rate as possible in the suitable range for properties. 4.

Recent studies on cellulose extraction showed cellulose production of OFEFB is affected by various factors including pre-treatment of EFB [14, 15].
Among these factors, bleaching is a strong factor in determining the physical and mechanical properties of extracting cellulose.
This improves the mechanical properties of the cellulose fibre [21].
Other factors such as the origins of OPEFB and hydrolysis conditions also contribute to the yield of cellulose [22, 23].
Sulaiman, The properties of the washed empty fruit bunches of oil palm, J.

The mechanism that affect fire's erosion on concrete is different from usual conditions, and it deserves further study on both erosion mechanism, influence factors, chloride erosion prevention measures, and the Calcium Silicate Hydrate decomposition under high temperature, which can be of significant meaning in concrete structure damage evaluation and effective structure maintenance and reinforcement after fire.
Fire is one of the potential factors that damage the building.
Once caught on fire, building's material properties deteriorate badly, structural performances decrease fast, and tremendous economic losses would be caused.
And a lot of researches have been carried out on material mechanical properties, residual strength and various structural failure modes under fire high temperature.
And the inner bond force in concrete mainly originate from C-S-H gel, whose decomposition will decrease the bond force, and further arouse the decrease of mechanical properties of concrete.