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Lubrication mechanism of inner impeller wheel has been analyzed; the entrance of the impeller diameter, number of leaves and leaf shape and other parameter has been calculated also.
Abrasive grain layer 4.
Vane number.
According to Mechanical Design Handbook, selected D0=65mm, so vane inlet angle is 90°.The impeller vane number z has a greater impact to airflow performance of cavity pressure.
(a) three-dimensional (b) practicality Fig.6 Impeller picture Conclusions A new wheel base with inner lubrication and cooling structure is designed in this paper, the mainly parameter conclude: the inner room diameter of impeller wheel is 140mm, vane impeller diameter is 120mm, the average diameter of entrance vane 60mm, the width of vane inlet is 20mm, outlet width is 10mm, the vane number of the impeller cavity is 18 at last these parameter may be complete the impeller wheel pressurized lubricating solid lubricant inside the mobility needs.

However, this is one of the most complicated alloys due to the precipitation of a large number of second phase particles.
However, they have unattractive fracture behavior due to the inhomogeneous nature of slip resulting from precipitates in matrix and grain boundary precipitates.
At elevated temperatures of 315-370℃, θ’ phase became dominant and eventually equilibrium θ phases can be found in the matrix and grain boundaries.

Because of this significance, simulated models have been created to map the grain structure evolution [5] and to attempt to optimize the orientation of the grain structure [6].
The manipulation of the grain structure could allow for specific mechanical properties to be achieved.
As a new technology, little research has been conducted on how grain structure influences the structural integrity of DMLM products.
Optical microscopy (OM) is able to create two-dimensional images at 1000x magnification which can create images of the overall grain structure.
The difference in mechanical properties was the result of an increased number of pores in the DLD samples.

Introduction The intensification of the surface hardening technologies of machine components promotes a number of relevant studies in the field.
A large amount of dispersed structures ~0.5 µm in size is observed inside grains.
According to optical images, large martensite laths with the eutectic carbide network are located along the grain boundaries.
At low values of energy parameters of the pulsed laser beam (mode 1), the mean hardness number in the reflow zone varies between ~860–880 MPa, i.e. it corresponds to that of M2 HSS state after hard facing (Fig. 9a).With the increasing power pulse and pulse duration, the weld pool grows, and the hardness number reaches 900–960 MPa in the center of the weld spot, i.e. 10% higher than the mean hardness number of M2 HSS (Fig. 9b–j).
The formation of large martensite laths reduces the mean hardness number by 10% as compared to that of M2 HSS state after hard facing.

Coarse grained lepidolite is easily hand-sorted; however, the fine lepidolite particle should be recovered by flotation with suitable collectors.
Except for Li-bearing brines, a large number of lithium mineral lie in Sichuan, Xinjiang, Jiangxi and Henan province.
In general, it is easy to obtain lepidolite from tantalum-niobium mine because of its characteristics of coarse grain.
Table 3Particle size distribution (grinding time=1min) Mesh number Rough minerals Fraction Li2O <200 32.51% 1.16% 160-200 11.34% 1.17% 120-160 11.59% 1.16% 80-120 19.78% 1.37% 40-80 12.81% 1.16% >40 11.93% 1.17% From table 3, lithium oxide content has no difference in different mesh number.

The visual difference between the starting AC and I-AC is that the grain size of the starting AC (4~8 mm) was dramatically reduced into fine powdery I-AC (Figure 1a).
After ball-milling, obvious size reduction from the large grain size (Fig. 1a) of the starting AC into the small size (Fig. 1b, < 1 µm) of I-AC was observed.
The Koutecky-Levich equation was used to analyze the number of the electron transfer.
The electron transfer numbers (n) for the starting AC, Pt/C and I-AC at -0.6 V were calculated to be 2.7, 4.0 and 4.0, respectively (Fig. 4a).
The electron transfer number at -0.6 V, (b) The current-time (j-t) chronoamperometric response at -0.3 V (vs Ag/AgCl) at a rotation rate of 2000 rpm related the addition of 3M MeOH Summary By taking advantages of ball-milling that is known as simple, cheap and eco-friendly process, activated charcoal (AC) could be chemically modified to yield iodinated AC (I-AC) at the same time.

The specimen aging at 773 K for 24 h has homogenized microstructure and no residual intermetallic compounds at the grain boundaries. 100μm (a) 20μm (b) Fig.2 Microstructures of the Mg-8.8%Hg-8%Ga alloy: (a) cast; and (b) solid solution Fig.3 Energy spectrum analysis of grain boundary of cast Mg-8.8%Hg-8%Ga alloy Fig.4 shows the TEM images of the Mg-8.8%Hg-8%Ga alloys after different aging treatments.
From figs.4 (b-f), it can be observed that the number density of the dispersed precipitates increased when the aging time increased from 2 h to 96 h and also increased when the aging temperature increased from 423 K to 523 K.
The number densities of the dispersed Mg21Ga5Hg3 precipitates increased when the aging time increased to 96 h in the Mg-8.8%Hg-8%Ga alloys aged at 473 K.
The size and number density of the dispersed Mg21Ga5Hg3 increased when the aging temperature increased from 423 K to 523 K in the Mg-8.8%Hg-8%Ga alloys aged for 8 h.

Combined with the morphological and biochemical character,The stain DX1 was identified as Bacillus cereus. 1 Introduction Organophosphorus was the main pesticide increasing grain yield and relaxing human growth at home and abroad.
According to the world agricultural organization, grain yield of world would reduce by 35%[1].But pesticides had different toxicity and caused environmental pollution and ecologica l damage.
GGGAAAAGGGCGGGTGCTATACATGCAGTCGAGCGAATGGATTAAGAGCTTGCTCTTATGAAGTTAGCGGCGGACGGGTGAGTAACACGTGGGTAACCTGCCCATAAGACTGGGATAACTCCGGGAAACCGGGGCTAATACCGGATAACATTTTGAACCGCATGGTTCGAAATTGAAAGGCGGCTTCGGCTGTCACTTATGGATGGACCCGCGTCGCATTAGCTAGTTGGTGAGGTAACGGCTCACCAAGGCAACGATGCGTAGCCGACCTGAGAGGGTGATCGGCCACACTGGGACTGAGACACGGCCCAGACTCCTACGGGAGGCAGCAGTAGGGAATCTTCCGCAATGGACGAAAGTCTGACGGAGCAACGCCGCGTGAGTGATGAAGGCTTTCGGGTCGTAAAACTCTGTTGTTAGGGAAGAACAAGTGCTAGTTGAATAAGCTGGCACCTTGACGGTACCTAACCAGAAAGCCACGGCTAACTACGTGCCAGCAGCCGCGGTAATACGTAGGTGGCAAGCGTTATCCGGAATTATTGGGCGTAAAGCGCGCGCAGGTGGTTTCTTAAGTCTGATGTGAAAGCCCACGGCTCAACCGTGGAGGGTCATTGGAAACTGGGAGACTTGAGTGCAGAAGAGGAAAGTGGAATTCCATGTGTAGCGGTGAAATGCGTAGAGATATGGAGGAACACCAGTGGCGAAGGCGACTTTCTGGTCTGTAACTGACACTGAGGCGCGAAAGCGTGGGGAGCAAACAGGATTAGATACCCTGGTAGTCCACGCCGTAAACGATGAGTGCTAAGTGTTAGAGGGTTTCCGCCCTTTAGTGCTGAAGTTAACGCATTAAGCACTCCGCCTGGGGAGTACGGCCGCAAGGCTGAAACTCAAAGGAATTGACGGGGGCCCGCACAAGCGGTGGAGCATGTGGTTTAATTCGAAGCAACGCGAAGAACCTTACCAGGTCTTGACATCCTCTGACAACCCTAGAGATAGGGCTTCTCCTTCGGGAGCAGAGTGACAGGTGTGCATGGTTGTCGTCAGCTCGTGTCGTGAGATGT 3.3 Structure of phylogenetic tree of strainDX1 Table4.1 GenBank aceession Number
Accession Numbers of the optioned species for constructing phylogenetic tree were listed in table1.
Fig2 Phylogenetic tree of strain DX1 4 Discussion At present,16S rDNA amplification sequence is widely used for heredity and identify of microbe.Sequence 16S rDNA of a large number of microorganism has been detected and coded in the GeneBank which becomes important reference system[4].Phylogenetic tree also becomes effective measure as microbial identification owing to these advantages of accuracy,efficiency and sensitiveness[5].

The top view of Ni films indicates that metal Ni films exhibits nonocrystalline consisting of 20-30 nm grains.
The SEM image reveals that the NiO films have a microstructure of colummar grains normal to the substrate.
Fig. 3 shows the variations in Vset and Vreset of the sample with the number of switching cycles, respectively.
Typical unipolar switching characteristics of of Pt/NiO/Pt device, the current compliances are Pt/NiO/Pt structures with the number of 5 mA for set.
Variations in Vset/Vsetave, Vreset/Vresetave of Pt/NiO/Pt structures with the number of switching cycles.

When coated with Zn, the grain on the surface of the films occurs.
Table 1 Antibacterial activity of Zn coated HDPE films Sample films E. coli S. aureus Mean number of colony [CFU/ml] Antibacterial rate[%] Mean number of colony[CFU/ml] Antibacterial rate[%] control 7.2×106 － 1.63×107 － Zn-Ⅰ 8.8×103 99.2 0 100 Zn-Ⅱ 2.95×103 100 0 100 Zn-Ⅲ 2.6×103 100 0 100 The mode of action of the biocides of metallic ions can be interpreted on the basis of each elementary process described as follows.
After deposited a metal coating by vacuum evaporation technology, the coating with uniform grain may shadow the defects of the substrate films and decrease the number of the pinhole and flaw largely, consequently leading to the decline of the permeation to oxygen and water vapor of the metal coated plastic films [10].