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The reason may be resulted from the increase of the mole number of thiourea, which increased the concentration of H2S (because CS(NH2)2 hydrolyses to give H2S ), as a result, the excess H2S reacted with MoO2 to produce MoS2, reducing the impurity and improving the product purity.
The possible reason is that the concentration of reactants in the solution was getting higher with increasing the mole number of thiourea.
Because of high solution concentration, grains continue to grow and finally form the uniform flower-microspheres. 1μm 1μm 1μm Fig.4 SEM images of the different products prepared by changing the mole ratio of Mo to S in the system using NH2OH·HCl as reductant.
Therefore, the number of bubbles is less in the system of H2C2O4 than that in the system of NH2OH·HCl.

The Manufacture And Maintenance Of Test Piece Count and metage the quantity of every materials,according to the mix proportion.put sand,cement,and rubber into agitator in proper order,stir in 60 seconds,then blend the water with water reducer,latex,tributyl phosphate,ethylene glycol slowly,stir in 30 seconds together,put break stone into agitator last,stir in 120 seconds,after that,pour out the mixture and test slumps.water and other additive should be mixed well-distributed by velocity mixing,the slumps barrel should be wash clearly,stuff one third of the slumps barrel when stuffing every time,in test.Test Piece for experiment is normal,adopt the method of stirring and jolt ramming by machine.according to (GB/T50081-2002)[5],after stuff the model,vibration close-grained to form concrete,take Test Piece into maintaining box, and then the form was removed after 24 hours, immediately moved then into the conservation
Fund 1 Liaoning Province Department of education project (Project Name: rubber modified cement concrete pavement performance study; the project number: L2012424); 2 Liaoning natural fund project (Project Name: road rubber modified experimental study; performance of concrete cement project number: 2013020087); 3 Shenyang Science and Technology Project (project Name: Crumb Rubber modified cement Concrete Pavement Performance application Technology); 4 in Liaoning province innovation teams in Higher Education Project (Project Name: environmental geotechnical engineering; project number: LT2012021).

This paper focus on the velocity with the number of 5m/s, 10m/s, 15m/s, 20m/s and 25m/s, and also considers different diameter of particles, shown in Tab. 1.
This thesis deals with the separation efficiency under different particles concentration with the number of 1%, 3%, 5% and 7% under the same flow rate.
Tab. 4 shows the simulation calculation number of total efficiency and separation efficiency under different particle concentrations, which has been drawn into Fig. 5 for visual understanding.
High separation efficiency can be obtained through the increase of processing volume, but the energy consumption is too large and some negative effects can be formed accompanied with grain crushing or wall abrasion when the volume reaches a certain extent.

Additionally, the ionic radius of lanthanides decreases with the increase of their atomic number [11].
The values of Z = +3 and coordination number CN = 6 are typical for most of the studied elements.
Subsequently, the variations of Tg found in the current study may be related to changes of the glass structure at elevated temperatures rather than to a change in coordination number.
Satet: Influence of Grain Boundary Properties on Microstructure Development and Mechanical Behavior of Silicon Nitride Ceramics (PhD Thesis, IKM 038, University of Karlsruhe (TH), Karlsruhe, Germany, 2003)

The surface quality produced in surface grinding is influenced by various parameters such as [3], [4]: i. wheel parameters – abrasives, grain size, grade, structure, binder, shape and dimension; ii. workpiece parameters – fracture mode, mechanical properties and chemical composition; iii. process parameters – wheel speed, depth of cut, table speed and dressing condition; iv. machine parameters - static and dynamic characteristics, spindle system and table system.
Table 1 Grinding Parameters And Their Levels Symbols Controlled Parameters Level 1 Level 2 Level 3 D Depth of cut[mm] 0.05 0.10* 0.15 F Feed rate [mm] 0.2 0.3* 0.4 Dd Dressing depth of cut [mm] 0.01 0.02* 0.03 * : initial parameters Experimentation Table 2 Response Entered In The Design Layout Factor 1 Factor 2 Factor 3 Response 1 Run D F Dd Ra [mm] [mm] [mm] [μm] 1 0.1 0.4 0.03 0.19 2 0.15 0.4 0.02 0.23 3 0.1 0.3 0.02 0.16 4 0.1 0.2 0.03 0.16 5 0.15 0.3 0.03 0.22 6 0.1 0.3 0.02 0.16 7 0.1 0.4 0.01 0.18 8 0.1 0.2 0.01 0.13 9 0.05 0.2 0.02 0.21 10 0.1 0.3 0.02 0.16 11 0.1 0.3 0.02 0.14 12 0.05 0.3 0.03 0.2 13 0.05 0.3 0.01 0.2 14 0.1 0.3 0.02 0.16 15 0.15 0.2 0.02 0.21 16 0.05 0.4 0.02 0.19 17 0.15 0.3 0.01 0.21 The total numbers of experiments were selected as seventeen.
The number of centre blocks was selected as 5, to increase the efficiency of the optimum parameters.
The response surface methodology gives good results with minimum number of experiments.

Large number of defects in the form of coarse inter-agglomerates pores and microcracks, which strongly affect the mechanical parameters.
Acknowledgement The author would like to acknowledge the support from the Fundamental Research Grant Scheme (FRGS) under a grant number of FRGS/2/2014/SG06/UNIMAP/02/8 from the Ministry of Education Malaysia and ADTEC Taiping Institute.
Matsuo, Stochastic analysis on coordination number distribution of particles during powder compaction, Adv.
Burggraaf, Powder preparation and compaction behaviour of fine-grained Y-TZP, J. of Mater.

Results and Discussion According to the analysis of electron microscopy data, increase the coating formation current density is proportional to grown thickness, as well as the increase in the porosity of the coating (Figure 1, Table 1), where i is coating current density, d is thickness, P is porosity, is average pore size, σ is \surface pore density (number of pores per mm2 of the surface).
i [mA/mm2] d [μm] P [%] [μm] σ [mm-2] 2.03 24 4.4 4.2 794 3.41 33 5.5 4.8 759 5.17 44 8.6 7.3 513 Thus, when the coating formation current density increases, the number of pores decreases, and the porosity of the coating increases, due to an increase in the average pore size.
This could be explained by increasing the number of strong discharges during PEO with increasing of formation current density.
Sharkeev et.al, Biocomposites on base of calcium-phosphate coatings, nanostructural and ultra-fined grained bionert metals, Tomsk, 2014

The as-prepared composite pellets were characterized and the results showed that the collagen fibrils acted as bridges to connect the adjacent calcium sulfate grains, especially when there was a high mass loading of collagen, which effectively depressed the rapid degradation of the pellets and improved compressive strength, and the optimal strength reached 17.2 MPa with 6 mg/mL collagen solution.
The number of the osteoblasts on the pellets surface gradually increased as time was prolonged, and the differences were more obviously between the pure CaSO4 and composite pellets.

A number of studies have shown that the squeeze casting process refines grains and eliminates porosity, and makes it suitable for producing premium quality castings [8,11,13,15].
As stated earlier, squeeze casting further enhances the strength due to the absence of micro-porosity, better interfacial bond between matrix and reinforcement, and grain refinement [19].

Reservoir rocks consist primarily of fine-medium grained feldspar-quartz sandstone or lithic quartz-sandstone.
Main lithology is fine grained quartz sandstone.
Tab. 1 A west fault block of Yuyang group water sensitivity test evaluation sensitivity evaluation well number Well depth(m) horizon permeability×10-3μm2 Kf 10-3μm2 Kw 10-3μm2 Kw/Kf conclusions simulate freshwater water sensitivity degree ES8 3515.77—3515.98 k2y4 2.54 0.99 0.99 1 weak water sensitivity 2.11 0.96 1.03 1.07 weak water sensitivity ES10 3355.85 k2y3 2.12 0.23 0.06 0.26 strong water sensitivity 3357.98 0.333 0.0102 0.0038 0.373 medium to high water sensitivity 3366.45 0.05 0.0044 0.0018 0.409 medium to high water sensitivity 3367.36 0.078 0.039 0.0014 0.359 medium to high water sensitivity The results by water sensitivity test and mineral analysis show that a compound fault block reservoir is rich in sensitive minerals: illite/montmorillonite, shale and iron shale, calcite, dolomite, clay minerals of all types.