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However, the collagen fibers as a natural biological polymer materials, has good mechanical properties and a large number of active groups such as carboxyl, amidogen and guanidine [2].
Program of experiments of preparation Experiment number Chrome-tanned collagen fiber (g) Polyurethane (MP-812) (g) Dimethyl formamide DMF(g) NO.1 0 5 10 NO.2 0.4 5 10 NO.3 0.8 5 10 NO.4 1.2 5 10 NO.5 1.6 5 10 NO.6 2.0 5 10 NO.7 2.4 5 10 In accordance to the program of experiments in Tab.1, a certain amount of DMF, PU and Chrome-tanned collagen fibers were mixed, bubbles in mixture were removed under vacuum.
Fig.1 and Fig.2 indicated that both of the films have dense grain and smooth surface, and can see the pore diameter less than 50μm, and distribution of pore is evenly.

Doug Hooton [2], the method involved preparation of thin sections of the concrete and point counting to obtain the number of unhydrated FA grains, then there are compared to a set of calibration standard sections.
The analytical results are examined by the application of a simultaneous equation mathematical approach to resolve the content of the individual components; this method has been successfully used by a number of UK laboratories and provides another possibility of resolving the composition of concrete, however, this method can only be used in situations where the chemical composition of original materials in concrete is known.

The grain size distribution is shown in figure 2.
Reflection targets were attached onto the wall facing units at a number of pre selected locations.
Typical records of lateral wall displacements measured at a number of selected survey targets attached onto the wall facing are plotted in Figure 5.

Introduction For improving the emergency handling capabilities, a large number of emergency command information systems have been built in China recently.
Accordingly, larger-grained command business service will be formed to meet more advanced command business needs of command force.
The redundancy based reliability model described with cycle flow As it is shown in Figure 4, g is cycle number and this structure can be seen as cascading g sequence flow structure.

China is a large agricultural country and a great quantity of maize are produced every year, which is one of the China's three major varieties of grain production.
When the temperature is below 500 ˚C, with the increase of activation temperature, the activation reaction speed becomes faster, and then a large number of micropores are formed.
Table 3 Results of orthogonal experiments Number Activator concentration /％ Activation temperature /˚C Impregnation ratio Iodine value /mg·g-1 1 45 450 2.5:1 685.26 2 45 500 2.7:1 781.39 3 45 550 3:1 751.45 4 50 450 2.7:1 767.92 5 50 500 3:1 832.13 6 50 550 2.5:1 783.97 7 55 450 3:1 800.02 8 55 500 2.5:1 775.94 9 55 550 2.7:1 751.86 Table 4 Results of range analysis Level Activator concentration/％ Activation temperature /˚C Impregnation ratio K1 2 218.10 2 253.20 2 245.17 K2 2 384.02 2 389.47 2 301.17 K3 2 327.83 2 287.28 2 383.60 k1 739.37 751.07 748.39 k2 794.67 796.49 767.06 k3 775.94 762.43 794.53 R 55.31 45.42 46.14 In terms of the range analysis of test results listed in Table 4, it can be obtained that: the impact of activation temperature on the activation effect is the greatest, impregnation ratio takes the second place, and activator concentration the least; suitable parameters of activation process: activator concentration is 50%, activation temperature 500˚C, impregnation

Introduction Textile-reinforced concrete (TRC) is a new composite material consisting of fine-grained concrete and high performance filament yarns made of alkali-resistant glass or carbon [1].
The roving is a bundle of a huge number of filaments that can act as a tensile reinforcement in the brittle concrete.
Given its potential applications, it is no surprise that there have been a large number of research initiatives aimed at evaluating its performance [2-9], and the formula for the normal section bearing capacity of carbon TRC beam [1, 8].

In addition to that CuO material exhibits a number of favorable properties as low cost, nontoxic and easy formation.
Their properties are influenced by size, orientation of the crystallites and the grain boundary characteristics.
CuO and Si XRD results were matched by JCPDS reference card number (45-0937) and (27-1402) respectively.

However, the long residence time, severe grain growth of diffusion bonding can lead to properties reduction of mechanical parts[2].
Since a high-temperature tensile strain is a relatively slow process, this simulation is used in the shell element, in order to ensure the normal operation of this simulation while ensuring the accuracy and efficiency of the simulation, the number of values ​​in the model simulation is uniform mesh.
The number of numerical simulation in the weld and the base material of various material property values [3] as shown in Table 1.

Great renewable wastes left after rice production have long been a concern for many researchers all over the world as the source of fibrous materials and a number of chemicals.
The main mineral component of rice production waste (husk, straw), as distinct from other grain crops, is amorphous silica.
IR-spectrum of amorphous silica from rice husk (numbers as per Table 1) Conclusion It was found out that from the black liquor produced from pulping of rice husk may be obtained amorphous silica dioxide of various quality.

The effects of point defect (impurity cluster) and surface defect (grain boundary) have been studied [4-6].
Molecular dynamic analysis In molecular dynamic simulation the motion of a large number of atoms is described by Newton's law: t m i 2 ii ∂ ∂ == r af (1) where f is the force on the atom, m the mass, a the acceleration, r the position of the atom, t the time and i represents the ith atom.
The force fi is calculated by the differentiating the potential function (E), namely i N 21 i ),,,(E r rrr f ∂ ∂ −= L (2) where N is the number of the atoms.