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At present, both at home and abroad, the research to improve the corrosion resistance in sea water of Fe3Al mainly through the addition of alloying elements, heat treatment, and refined grains.
Fig.1 Changes in bacteria numbers in Fig.2 pH value changes of the microbial the process of immersion culture medium At the beginning of culturing, the medium pH value is about 7.24, as is shown in Fig. 2, and changed with the growth and the metabolism of microbial.
After that the number of bacterial maintained at a certain counts, pH values are relatively stable.

In 1997, they developed a "reinforced concrete structure, Ningbo, concrete mixing with sand rust inhibitor prepared a number of provisions."
process should be careful to prevent sample loss . 3, again adding to the container with water and repeat the operation to the visual clean water container up. 1.1.2 Analysis of test results Table 1 Determination of sea sand in the clay content data Clay content /% a b c d Average Dilute the sand (on) 0.046 0.053 0.42 0.59 0.05 Dilute the sand (below) 0.185 0.172 0.164 0.179 0.175 Not dilute the sand (on) 0.74 0.78 0.62 0.86 0.75 Not dilute sand (below) 0.95 0.92 0.96 0.89 0.93 Data from the table1 and change can be seen that two points, first is a pile of sand with either dilute or not dilute, the lower the amount of sand clay is much larger than the upper sand clay content, analysis of the reasons is due to sea Sand moisture content during the time of stacking large,The second point is not dilute the amount of sea sand in the mud far greater than the diluted sea sand clay content analysis that the sand washed in fresh water during the process of desalination of sea sand in a large number
Analysis, although some fine sand in the shell powder desalination process would be washed away with fresh water, but the sand grains in the shell film is generally more dominant in terms of quality, so the sand content in the data on the performance of shell for the differences small.

Both of the cut surfaces were polished by diamond lapping films with decreasing diamond grain from 15 to 0.05 µm.
Journal Title and Volume Number (to be inserted by the publisher) 3 2.
We suggest that their presence can be reduced if a high ramp rate up to 1300 °C is performed in order to decrease the number of stable complex nucleated at low temperature.

The schist is characteristically foliated, meaning the individual mineral grains split off easily into flakes or slabs.
Calculation results of strength and deformation parameters Specimen Numbers Uniaxial compressive strength (MPa) Elastic modulus (GPa) Deformation modulus (GPa) Poisson's ratio test condition 4-3-1 133.6 52.06 37.86 0.112 natural 4-5-1 135 63.77 37.02 0.224 4-5-3 128.8 59.11 33.65 0.158 4-9-2 113.2 49.6 32.25 0.18 4-10-1 121.5 41.05 18.89 0.222 4-10-3 126 35.62 22.43 0.223 4-3 101.3 44.08 35.85 0.232 saturated 4-3-2 89.4 35.98 21.13 0.151 4-6 90.9 39.76 23.73 0.186 4-7-3 88.9 40.81 28.05 0.253 4-8 79.8 40.35 23.45 0.142 4-10 106.1 33.55 20.91 0.278 Results of triaxial compression test Complete stress-strain curve The complete stress-strain curve obtained by triaxial compression test is presented in figure 5.
Calculation results of strength parameters Specimen Numbers Minimum principal stress (MPa) Principal stress difference (MPa) Maximum principal stress (MPa) C (MPa) Φ (°) test condition 4-10-1 0 121.5 121.5 16.39 64.8 natural 4-7 2 206.3 208.3 4-10-2 4 220.0 224.0 4-9-3 6 292.8 298.8 4-9-1 8 279.6 287.6 4-8 0 79.8 79.8 7.51 62.7 saturated 4-8-3 2 81.6 83.6 4-8-1 4 132.6 136.6 4-8-2 6 132.4 138.4 4-5-2 8 183.1 191.1 Analysis test results Basic mechanical properties The results of uniaxial compression test show that the average uniaxial compressive strength of schist under natural condition is 126.35MPa while the value reduces to 92.73MPa under saturated condition (as is shown in table 1).

Nowadays a considerable number of large reservoirs have been subjected to varying degrees of waterlogging [2].
On both sides of the reservoir and its banks are sprinkled with a large number of villages and farmlands [3].
(a)NO.1 (b)NO.2 (c)NO.3 (d)NO.4 Figure 3 Moisture characteristic curve of fine grained soil Soil is saturated when Sr﹥80%, then converse the volumetric water content.

It was shown that the higher sintering temperature of SE gives the lower number of reaction sites at the triple-phase boundary (TPB) among gas, YSZ and NiO and brings about low catalytic activity to the heterogeneous gas-phase NO2 decomposition reaction.
The lower number of reaction sites and the lower gas-phase catalytic activity were reported to be responsible for highNO2 sensitivity when the sintering temperature of SE was high.
Fig. 4 shows the representative SEM images for the surfaces of the fabricated NOx sensor (a) surface of NiO electrode, (b) ZrO2,(c) cross-section between NiO and ZrO2, (d) Pt electrode, It is clearly seen that NiO sensing electrode is composed of well-defined NiO grains and porous structure.SEM observations also revealed that there is no interaction between the NiO powder and YSZ plate even after sintering at 1400 ◦C. the interface between the NiO-SE and YSZ is assumed to be chemically stable and composed of NiO and YSZ without the formation of any secondary phases.

Results and discussion XRD and EDS analysis Fig.1 shows the X-ray diffraction patterns of the bare Zn nanocrystallines, all of the diffraction peaks can be identified as Zn (JCPDS card number 00-004-0831).
All of the diffraction peaks are in good agreement with the data of hexagonal-phase ZnS(JCPDS card number 00-012-0688).
The obtained value is larger than relevant literature [24], this may be caused by quantum effect [25], and also by crystallization, grain size, and the stress and impurities on the films.

However, when the temperature is above 1200°C, the strength of quartz fiber is lost because of the grain growth, which limits its wider application [8-9].
The flow resistance in the impregnation process increases with the increase of the number of impregnation and the decrease of the pore size.
It can be seen that a large number of fibers are pulled out of the matrix, which can play a significant toughening effect and improve the mechanical properties of the materials.

In recent years, the increase in the average age of the population has lead to the growth in the number of surgical procedures, including hip and knee replacements, whereas as the human body ages, the joints become more prone to illness.
The Ti-25Nb-10Zr-8Ta alloys presents a higher content of β phase compared to Ti-21Nb-6Zr-15Ta, where the intensity and number of α’’ peaks are significant.
The Ti-25Nb-10Zr-8Ta and Ti-25Nb-10Zr-8Ta are classified as near β-alloys, presenting similar microstructures, characterized by the presence of β-grains, which contain lamellar structures specific to α” phase.

North temperate continental monsoon climate Forest, grain Tonghua More than 2/3 of the area is mountainous, basin topography humid continental climate Forest, drugs, mineral 4.1.3 City Syntax The space integration shows different features in evolution of the empirical urban space axis and their intricate miniature structure reflects the richness and diversity of texture space.
The four cities are surrounded by rivers, and the main hydrographic features are showed below: 4.2.2 Hydrographic Feature Analysis The four cities are connected by roads, and the main traffic features are showed below: 4.2.3 Roads Elements framework analysis Table 4 Traffic Feature Table 3 Hydrographic Feature City The pattern of urban roads Number of Highways Tonghua four horizontal and one vertical 2- Huadian a one-hour economic circle of Jilin and Changchun two-hour economic circle 2 Dunhua four vertical three horizontal and a ring 1 Jiaohe seven vertical and six horizontal, both inside and outside the ring 2 City rivers The cities was divided into several parts River naviga- tion capacity Tonghua Hunjiang 4 Good Huadian Baishan Lake, Hongshi Lake, Songhua Lake 2 General Dunhua One River and 17 Creeks, Mudanjiang 3 Good Jiaohe Most rivers are of the Songhua river system, a small number of rivers of Mudanjiang river system. 3 Good 4.3 Urban Spatial