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Introduction During the last two decades a significant number of experiments on beams reinforced with stirrups made from FRP composite materials were conducted.
Fig. 1 Dimensions and the placement of the reinforcement of the beam B1 Because of the narrow inner dimensions of the FRP gratings mesh (27 x 27 mm) a concrete mixture with the maximum aggregate grain size of 8 mm was used.
Test Number of ACI 2006 JSCE 1997 CAN/CSA 2009 experiments Vtest/Vu Vtest/Vu Vtest/Vu This study (with shear reinforcement) 9 1.71 2.18 1.49 Results from literature 27 1.70 2.13 1.62 Conclusion The use of FRP grating with glass fibers as a shear reinforcement significantly increased the shear strength of tested beams.

In the unit code: I, II, III or IV – series number; the last sign in the brackets – specimen number; 2.Under the line – quantity and diameter of the reinforcing bars; below the line – total area of the reinforcing bars, mm2.
Here it could be useful to implement prior impregnation of the CFRP bars with epoxy compound with a further coating of the bars surface with abrasive materials, for example, with a quartz sand of different grain-size distribution.

A large number of linear, rod-like, spherical inclusions (as big as a grain) were found in the inner ring, two linear inclusions (about 2000μm) in 15 × 15mm range.
Overall, the measured results were basically consistent with the theoretical analysis. 4. 3 Microstructure characteristics Metallographic examination showed there were a large number of inclusions in the inner ring of the stuffing box.

NPS is also suitable for the quantitative description of the noise frequency and number of the prints.
The maximum number K of segments available depends on the N value of ROI, and this in turns depends on the measured area.
Thompson, Quantification of banding, streaking and grain in flat field images, In Proceeding of IS&T PICS Conference (2002), p. 79 [3] C-M.

The secondary pores distribution formed by the molding process or crystal grain defects, will greatly affect the diffusion and mass transfer of adsorbate, to some extent determines the adsorption performance and service life of 5A zeolite.
Fig. 3 Micrompore distribution of 5A zeolite Fig.4 Pore number fraction (>10nm) of 5A zeolite Table 1 Pore volume, diameter and specific surface area of 5A molecular sieves Pore structure parameters A-1 A-2 A-3 <2nm BET surface area, [m²/g] 438.508 530.023 585.336 Pore volume, [cm3/g] 0.171 0.205 0.243 >10nm BET surface area, [m²/g] 7.953 1.754 1.321 Pore volume, [cm3/g] 0.323 0.319 0.173 Porosity, [%] 35.850 35.360 26.190 The information of secondary pores of 5A zeolite was measured by mercury (Poremaster GT-60).
Compared to A-2, A-1 has a higher diffusion time constant, because the secondary pores of A-2 are larger and fewer in numbers, less diffusion channels.

Due to increasing number of process parameters, a special design of L9 orthogonal array (OA) is used to reduce the large number of experiment.
Due to heat treatment at 400°C, Ni–P nodules gradually grow in size, which results into coarse grained structure of the composite coating.

Introduction It has been found that the boron can improve the grain boundary strength of iron at low temperatures and increase the creep rupture life and ductility of austenitic steels and nickel alloys at high temperatures [1].
Thus there would be a number of borides in the cast stainless steel with boron contents higher than 2 %, leading to a poor thermal deformation ability of the alloy, although Cr and Ni in the alloy are reported to enhance the solubility of boron by enlarging the lattice size.
However, a number of massive structures can also be observed besides the dendritic borides and matrix in Fig. 1(b).

With the deepening of understanding of sand liquefaction.Engineering practice of vibration on the estimation of the probability of getting more important.In various ways,but Because of differences conditions,Different methods gets the conclusion may be inconsistent.Any method should be combined with the actual engineering.Data display,Commonly used in engineering method: Wave velocity method, critical void ratio method, vibration and stability of density method, standard blasting settlement method.Static cone penetration test method.Critical vibration acceleration method.Critical standard penetration number method,Liquefaction shear stress method, comprehensive index method and statistical method.
Fig. 4 A tangshan earthquake liquefaction spray take sand phenomenon Although the number of liquefaction of sandy soil will bring huge losses, but not all, of the liquid to take immediate measures to deal with, because some liquefied and won't endanger buildings.
Table 2 Saturated Sand Liquefaction prevention measures Saturated sand liquefaction prevention measures and the corresponding description Nature Measure Method Description Principle Total elimination Deep base The depth of the underside of the foundation under the liquefied soil Increases based puzzle set depth, and a corresponding increase in foundation sand liquefaction resistance Encryption Encryption method using vibro compaction sand pile, direct vibration the tantric and explosions encryption foundation reinforcement Change Liquefied Liquefied Foundation Dynamic Compaction 8 ~ 40 T 8 ~ 40 M at the free-fall drop hammer to lay a solid foundation Reduce soil compression to improve liquefaction conditions Vibroflotation The loose sand grains rearrange dense vibration hole to fill in the aggregate Increase foundation density and relative density, improve the anti-liquefaction performance Dig-for Liquefied soil dredged and non-liquefied soil replacement Remove liquefied origin Partially

This theoretical process presents great difficulty to the large number of variables involved, likewise effects such as temperature, high deformation rates, etc.
on the computer, thus reducing the number of prototypes to manufacture and consequently final part cost.
For forged parts students must create an optimum design for part manufacture, likewise design of the necessary tools, and then calculate aspects like burr dimensions, forge pressure, internal material stresses or final grain orientation of part after deformation.

Instruction Laser shock processing (LSP) is a promising surface treatment technique and has been shown to be effective in improving the fatigue properties of a number of metals and alloys.
And residual stress was found to have a significance dependence on the coating grain result to the different effect of LSP.
Tab 2.Surface stress in 6061-T651 at three different coatings in LSP Sample number Coatings Laser power density �GW/cm2� Surface maximum stress�MPa� Sample 1 Without coating 3.31 +89.7 Sample 2 Aluminum foil 3.31 -224.9 Sample 3 Black paint 3.31 -280.1 Sample 4 Silica acid paint 3.31 -320.0 Moreover, if the coating material is correctly chosen, the stresses transmitted to the substrate target can be increased due to mismatch impedance effect.