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Dewatering of the tailings to produce “dry tailings” for stacking is now being used as an alternative by a number of companies [1], and has already gained well economic and social benefits not only in the gold leaching tailings [2], but also in the other types of tailings such as coal, iron, copper, aluminum and phosphate mines [3,4,5].
Since the pressure filter accepts a wide range of particle size, concentration and viscosity, it is an essential and flexible equipment to treat the fine grains in the tailings.

Figure 4 shows a dark-field TEM image taken from a C15 grain.
For Laves phase, on the other hand, the ideal ratio of the constituent atom radii for the closest packing is 1.225 [15], and the enthalpies of formation for a number of Laves phases show the maximum at the ideal ratio [16], suggesting the Fig. 3 SEM micrographs of an Ir-20Pt-15.5Y annealed at 2073 K for 72 h.

There have been a number of techniques for refining at high strains, and among them equal channel angular processing (ECAP), accumulative roll bonding (ARB) and friction stir processing (FSP) attracted a lot of research interests worldwide [2].
However this refinement process does not continue endlessly because of some sort of annihilation of boundaries, which restricts the rate of grain refinement at high strains [1].

As we all know, the size of grain could effect the formation of crystal.
Acknowledgements This work is supported by Shanghai Leading Academic Discipline Project (Project Number: J51504) and Foundation of Shanghai Institute of Technology (No.YJ2011-30).

Introduction Fertilizer application, which is the best way to increase crop yields, plays an important role in national grain safety [1, 2].
Richie put forward the “Crop-environment resources information system”, and a recommended amount of nitrogen in corns and wheat based on a number of climates, crop varieties, physiological characteristics, balance in moisture and nutrients [7, 9].

In the direct contact test, the material to be tested or its extraction contacts directly with culturing cells, after a period of time, the numbers, morphology, metabolism or function of the culturing cells were evaluated.
Many approaches have been introduced to control the pore size of a porous ceramic, such as the selection of raw materials, control of grain distribution, addition of additives that form opening space in ceramic and so on.

For many glasses and amorphous materials, α is given by[9]: α(ω) =B ( ℏ ω- Eopt)n / ℏ ω (3) where the constant B is a measure of the disorder of the material, Eopt is the optical energy gap and n is a number which characterizes the optical absorption process.
As the Fe content Fv increases in the examined composition, the surface area at the interface between the granular grains and matrix materials increases.

Biological resources include agricultural products (grain, beans, oil, vegetables, fruits and pork, etc.), livestock products (beef, lamb, poultry, eggs, milk, wool, etc.), forest products (timber, fruit, dried fruit, etc.) and aquatic products (fish, etc.).
Various energy consumption will be converted to fossil energy land through the global average energy footprint and conversion factor [2].The the average global energy footprint and conversion factors of main energy are as follows: Table1 Average global energy footprint and conversion factors[3] Number Item EEci（GJ/hm2） Ti（GJ/t） 1 Coal 55 20.934 2 Coke 55 28.470 3 Crude 93 41.868 4 Gasoline 93 43.124 5 Diesel fuel 93 42.705 6 LPG 71 50.2 7 Natural gas 93 16.33 8 Heat＊ 1000 29.344 9 Electricity＊＊ 1000 11.84 Note:＊unit 1;＊＊unit GJ/104kWh Calculation of Ecological Carrying Capacity.

As the volume fraction of solid particles is less than 10% to 12%, numerical simulation can be carried by Discrete Phase Model, furthermore, the model itself has the abrasion formula: (9) where,is the projected area of solid particles to the wall, is the velocity of solid particles relative to the wall, b is the exponent of velocity, is the function of incident angle, is the function of solid particles’ diameter, is the mass flow rate of solid particles, is the number of solid particles.
Fig. 3 Contours of pressure Fig. 4 Contours of velocity Fig. 5 Particle tracks Fig. 6 Distribution of erosion The trajectory of the solid particles can be seen from Fig 5, in horizontal pipelines, because of gravity, some particles accumulate to the bottom of the pipe and cause slight wear near the entrance of the elbow in horizontal pipe, the solid particles get maximum concentration near the exit of elbow, and a “no solid grain area” [6] appears inside of the elbow, which means substantially zero concentration of particles here.

Through the symbol, implication, harmonics, table number, text, and the comprehensive application of artistic to express the happiness of life, joy, peace, win promotion and get rich, fertility and riches.
Giving a person with overall and comfortable feelings; by using different grain appearance size, depth, thickness, form, various textiles link together, formed the silk home textile decoration style’s changing and unity.