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(Fig.2) Fig.1 Material Evolution (Source: Materials and Design by Mike Ashby and Kara Johnson. 2002) The auto industry uses a tremendous number of materials to build cars, including iron, copper, steel, petroleum and others.
In regards to formation texture can be divided into two groups for example – Natural texture such as wood and artificial texture such as wood grained Formica.

The Ref. steel and samples tempered at 200 °C had large number of small precipitates in the microstructure, which were presumably transition carbides formed during the first tempering stages.
Also, the carbides precipitated at the grain boundaries might be coarser for the conventionally tempered samples [8].

S235J0 is a non-alloyed, fine-grained, quality structural steel, statically and dynamically loaded.
Table 7 Technological parameters Parameter/ Number of welding Welding current Wire feed Gas flow [l.min-1] 3 5 8 8 4 5 7 7 It is based on the principle of the penetration of a penetrating substance infiltrating into the inspected material and a developer that reacts with penetrate and ensures their visibility.

Subjected to rapid solidification, solidification behaviors and microstructural formation of materials exhibit significantly different characteristics compared to those occurring in near equilibrium solidification, e.g. grain refinement, extension of solid solubility, metastable phase formation, and so on [5].
According to the negentropy model proposed by Spaepen [10], the σsl is expressed as (2) where ΔSf is entropy of fusion, Vm is molar volume of crystalline phase, NA is Avogadro’s number, T is temperature, and the factor α is dependent on the structure of crystal nucleus.

As Figure 7 shows, the spectral peaks of CO2 corresponds to the 2300~2400 cm-1 wave number, and the spectral peaks of H2O corresponds to the obvious peak groups on both sides around 1500 cm-1 and 3750 cm-1.
Comparing these two SEM images, the grain size of PM alloy is much finer than as-cast alloy.

Table 1 The evaluation index system of agricultural modernization in Liaoning Province Component Index Unit Agricultural input C1 X1 The proportion of the first industry practitioners to total employees % X2 The proportion of economic crops to total crop % X3 Fertilizing amount in unit cultivated land area Kg/ha X4 Effective irrigation coverage % Agricultural output C2 X5 Grain yield Kg/ha X6 Cultivated area per labor force Mu/person X7 Labor productivity Yuan/person X8 Land productivity Yuan/ha X9 The per capita net income of farmers Yuan Rural social development Level C3 X10 urbanization level % X11 Ratio of urban and rural income — X12 Engel's coefficient of farmers % Sustainable rural development level C4 X13 Rate of natural population growth % X14 Afforestation area accounts for the proportion of total % X15 Waste water emissions per unit of area 10000tons/ha Indicators standardization It usually requires standardization to the input matrix before the principal
(3) PCABP model in fitting data, of course, also showed the disadvantage widespread in BP network, that is still need to do the trial-and-error method many times to determine the number of network implicit layers and units.

However, the light energy utilization rate of sandblasting reflective materials is low, the surface spraying of sand grain presents a state of the unordered arrangement, which leads dead angle, and loses some or all of the light energy after multiple reflections in the sand.
It shown that the volume on the surface of the microstructure increased when the height of the microstructure became bigger with the same radius from figure (a), and the angle of their normal migration became bigger, so the light after reflection was more tend to round out, then the reflection properties increased. when the height of the microstructure remains unchanged, as shown in figure 5 (b), as the radius increased gradually, the number of microstructure can be arranged in the material surface was less, so the reflection properties would decrease; In addition, the light on the surface microstructure of normal direction draw closer with the increase of the radius to local normals of microstructure, material reflection performance was relatively lower.

The rigidity of the mineral filler grain reduces the volume shrinkage of the adhesive layer, which can eliminate internal stress and avoid transparent glue, short glue, reduce air bubbles and other defects.
However, the bonding strength of the plywood will be affected when a large number of holes or other defects between wood appear, because the adhesive layer contraction is increased as the glue increases excessively. 3.3 Effects of the different types of fillers on the adhesive bonding strength and the free formaldehyde content of the plywood Table1 Bonding strength and free formaldehyde content of the plywood with different fillers Filler Bonging strength (MPa)* Formaldehyde content (mg/L) Flour 1.738 4.6 Talc 0.539 4.4 Kaolin 1.11 3.67 Attapulgite 0.974 3.5 Modified attapulgite 1 0.925 3.0 Modified attapulgite 2 1.24 2.1 Modified attapulgite 3 1.26 2.6 Modified Mineral composite powder 1.502 1.6 *GB/T9846-2004 standard provisions the bonding strength of the grade 1 poplar plywood ≥0.7MPa.

Compared with as-prepared diamond film, it means the increase in the number of graphite micro domains and sp2-bonded cluster as a result of incorporation of Ti, which may be attributed to the formation of nanographite or nanocarbides.
Small and uniform grains can be observed in Fig.8(a) and the film thickness is about 1μm in Fig.8(b).

Introduction The fly ash are composed of silicon aluminum glass, microcrystalline mineral grains and not burn the carbon residue particles composition, the chemical composition by oxidation silicon and alumina primarily.
Present situation and development of comprehensive utilization of coal ash 2.1 The application of fly ash in engineering backfilling In recent years, with the rise of backfill fly ash greatly to reduce pressures of power plant in fly ash, and that many of the ash field use fixed number of year to extend, and to ensure the security and stability of power plant production.