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Applied stress Sintering temperature Holding time Mean Grain diameter MPa K Min µm 50 773 12 45 Workpiece ZrO2－3Y Peak Current /A 4.67 Discharge duration /µs 16 Interval Time /µs 64 No Load Voltage /V 140 Servo Voltage /V 80 Fig. 1 Experimental schematic of machining system.
The number and size of pores became lower with increasing relative density, and very few pores could be detected for a relative density of 95%.
It was considered that the defects were caused by removal from the sintered grain.
It appeared that with positive polarity, the existence of surface pores was the main factor for the discharge generation, but a suitable pore number and size enhanced the activity of the removal phenomena for negative polarity.

It is clear that the temperature has a very large effect, namely with the reaction of temperature rising, the spread of solvent molecules in leaching solution speeds up and the stockpile energy of mineral grains increases, then the ability of damage or weakening of the chemical bonds of mineral enhances, and the number of molecules whose kinetic energy is equal to or greater than activation energy increased.
Fully mixing slurry would not only can avoid the settlement of magnetic particles, but also increase the relative motion among mineral grains and solution which heightens the copper extraction rate.
Table 3 Results of test at best conditions Test number 1 2 3 4 Leaching efficiency /% 87.69 87.20 87.00 87.74 Leaching residue grade/% 0.166 0.171 0.174 0.164 5.

The X-ray density of samples is calculated by following equation: (2) where, value of 8 or known as Z is the number of formula units in a unit cell for spinel ferrite, M the molecular mass of the sample, NA the Avogadro’s number and a3 volume of the cubic unit cell.
The deterioration of coercivity is due to the degradation of exchange interaction cause by extensive grain coarsening [12].
The grain size increases when the samples were sintered up to 1000°C.

As the hydrogen dilution ratio further increasing, the number of SiC particles gradually increase, while the introduction of carbon can suppress the thin film particles increase [12], the optical band-gap broadens because of the particles average diameter of thin films decrease.
When the number of hydrogen ions of the reaction gas increase, which increase the probability of the atoms collisions, chemical bond length will become larger than before because of the increase of hydrogen content ,free energy and surface mobility decline, thus all these factors leading to enhanced adsorption reaction and larger deposition rate [13].
Thin film becomes dense, and the grain size becomes smaller, but the deposition rate was lower at this time, which is related to the high-speed etching of H [14].
Zhai, et al: Influence of Hydrogen Flow on Grain size of Nano-crystalline SiC Films Grown by HFCVD Method.

However, wood also has a number of disadvantages.
The concept of integrating pultruded FRP and low-quality wood in the form of beams has been investigated by a number of researchers in the recent past.
In addition, the direction of fiber in FRP sheet was the same as that of wood grain in bonding sample.
G=τ/γ (1) G=∆τ/∆γ (2) ∆τ=τA-τB (3) ∆γ=γA-γB (4) where G is shear modulus; τ is shear stress; γ is shear strain; τmax is shear strength; A, B are points shown in Fig. 2(b). τ O γ τ O γ (a) (b) A B τmax τmax 35mm 30mm 10mm 5mm FRP 25mm Wood grain Wood (c) (b) 30mm 10mm 5mm Wood (a) Wood Results and Discussion Control Experiment.

Introduction China is in the world's two most active seismic zone, east near the central Pacific seismic belt, west and southwest near the an alpine Himalayan seismic belt the place, and is the world's number one of the earthquake.
The material of concrete and concrete mixing proportion The material of concrete Coarse aggregate: pebble stone, size 5~20mm, meet with Grain composition criterion of the aggregate ( GB/T 14685-2001 of China).
Fine aggregate: grain composition are in the zone II of sand (GB/T 14685-2001 of China); and Mx=2.3.
And the number of control sets was equivalent to that vibrated on the vibrating table.

The innovation of the paper is not from the current study of agricultural products futures that has very mature like price function point of view, but from a different approach—the perspective of the new modern logistics which based on the utility analysis of agricultural products futures studies. 1.Introduction China is one of the biggest agricultural countries in world, the production, circulation and price of agricultural products are crucial，which makes logistics of agricultural products playing an important role in national economic development.National document of "number one" in 2010 puts forward to "develop large market circulation of agricultural products , intensify efforts to construct commodities storage facilities of grain, cotton, oil, sugar and other agricultural products, improve cold chain logistics system of the fresh agricultural products , and support large agricultural enterprise invest and construct logistics facilities of agricultural products.Speed up
The production and consumption of agricultural products have dominant problems of obvious seasonal and shelf-life, and have special requirements for the flow of operation in reality, nevertheless agricultural products futures just solve those problems.In 2013, the central government issues the "number one file" on circulation of agricultural products again,which explicitly proposes to "strengthen the construction of agricultural product futures market,timely to add new agricultural commodities futures varieties,and cultivate the agricultural products price formation and trading center which is influential at home and abroad ".The rapid development of agricultural products futures requests the logistics of agricultural products to get good application.Surprisingly few people study agricultural products futures from the modern logistics of agricultural products.This paper which is dedicated to studying the utility analysis of modern logistics in agricultural futures,combine the agricultural
Guide farmers to enter the market, put farmers unite, realize the intensive, facility agriculture, large scale cultivation, standardized production, improve the quality of agricultural products, farmers will have strength to negotiate with the grain enterprises on purchase price.

Although a number of alternative catalysts have been developed, the copper-chromium oxide catalyst is still widely used in China because of their high efficient and low-cost [2].
↓ spent catalyst→ components →roast →leaching→filter →residue→filter→solution to leach ↓ ↓ lime→ removal of silicon residue ↓ ↓ CaSiO3 ←filter acid-soluble←nitric acid ↓ ↓ sodium chromate solution copper nitrate solution ↓ ↓ new catalyst ←make grain
The secondary solution was cooled at room temperature more than 12h, then thick and uniform sodium dichromate crystal particles can be separated, reducing the nucleation number.
soda ash concentration alkali solution ↓ ↓ spent catalyst→components →roast →leaching→filter →residue→filter→solution to leach ↓ sodium chromate solution copper nitrate solution ↓ ↓ new catalyst ←make grain ←roast ← separation ←components ↑ ammonia Fig.2 The recovery process

But current 110 incidents analysis systems only utilizes data of recent days, a large number of historical data are underutilized; Secondly, the data lack of logical organization and physical integration, which is not suitable to perform data analysis and data mining; Thirdly, current 110 incident reports was based on operational database, which is not very efficient.
Star schema consists of two parts[8]: one fact table, which containing a large number of data; dimension tables, a group attached tables, each dimension table corresponds to a dimension[9].
For relational model, the guidelines can be relaxed, because the data warehouse contains fine-grained data.
The grain of the fact table is one row for each 110 incident.

The major mineral in bentonite is the fine montmorillonite grains.
The average particle size of the bentonite is 3.051μm by laser diffractometry grain-size analysis.
Table 1 Properties of bentonite Specific gravity Average particle size [µm] BET surface area [m2/g] EGME surface area [m2/g] Plastic limit wp[%] Liquid limit wl[%] Plasticity index [%] 2.58 10 39.8 455.8 59 271.7 212.7 Table 2 Experimental program Sample number Void ratio at compaction Preparation method Water content at Preparation [%] Water content at Saturation [%] Dehydration method B1-1 2.37 Compacted, saturated 53.75 91.90 Freeze-drying B1-2 2.37 Compacted, saturated 53.75 91.90 Oven-drying B1-3 2.37 Compacted, saturated 53.75 91.90 Air-drying B2-1 1.99 Compacted, saturated 53.75 77.32 Freeze-drying B2-2 1.99 Compacted, saturated 53.75 77.32 Oven-drying B2-3 1.99 Compacted, saturated 53.75 77.32 Air-drying B3-1 1.60 Compacted, saturated 53.75 62.06 Freeze-drying B3-2 1.60 Compacted, saturated 53.75 62.06 Oven-drying B3-3 1.60 Compacted, saturated 53.75 62.06 Air-drying M-1 1.58 Compacted 47.74 - Freeze-drying M-2 1.58 Compacted 47.74 - Oven-drying M-3
The number of the large pore is the most in the saturated bentonite dried in oven-drying and the reason is maybe that the micro-fissures are produced between the weak connected aggregates due to the rapid change of the temperature in oven-drying.