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First, the grid computing model to calculate the data is divided into a number of “small pieces”, and calculates the "small piece" of software is usually a pre-programmed screen saver, and then the computer can be different nodes according to their capacity to download one or multiple data segments, and this screen saver.
Five components of the hourglass structure according to the distance and sharing of resources will be functions scattered in five different levels, from bottom to top are: structural layer, link layer, resource layer, collective layer and application layer, the more the lower The more close to the physical shared resources; and the number of different parts of the agreement is different, for the most part of the core, upper layer protocol to be able to achieve the mapping to the core protocol, while achieving other key agreement protocol to lower the mapping, so the formation of the core protocol of the agreement hierarchy bottlenecks in five-story structure, the resource layer and link layer together constitute the core.
This view that scheduling is a more specific level that is fine-grained scheduling.

The weighted average (Co) is defi{TTP}-1279 ned as: (2) Where Ck is the carbon content of sampling point, k is the number of sampling point and n is the sampling point count.
Table 2 Process parameters of billet samples, results of chemical content analysis and etch test for macrostructure Sample number 1 2 3 4 5 6 7 Casting speed /m·min-1 1.74 1.74 1.74 1.74 1.71 1.80 1.85 Superheat /°C 15 30 28 30 30 30 30 Water consumption rate /L·kg-1 0.49 0.49 0.49 0.72 0.72 0.72 0.72 Central carbon Segregation ratio 1.04 1.27 1.17 1.16 1.34 1.13 1.15 Central porosity 0.5 1.5 2 1 1.5 1 1.5 Central pipe 0.5 1 1 1 0.5 0.5 2 Results and Discussions The Effect of Superheat on Central Defect of SWRH82B Billet.
However, when casting speed is increased from 1.80m·min-1 to 1.85m·min-1, it will lead to the decrease of residence time of billet in mould and solidification rate of liquid steel, as well as the increase of liquid core length and generation time of central equiaxed grain zone, which is helpful to promote growth of columnar crystal zone.

The specimens in dimensions of 0.9 × 8 × 25 mm3 were cut from the bulk with an average grain of 2.5μm.
(1) where g0 is the surface energy without adsorption, g(t¥) the surface energy of the adsorbed sample after saturation sorption, n the total number of surface sites per unit area, k a constant, N=6.023´1023, R=8.314 J/mol·K, [HL] the activity of hydrogen.
For the sorption of molecular hydrogen or water steam, q=K[HL]/(1+K[HL])=(kP)1/2/[1+(kP)1/2], where θ is the fractional number of surface sites that are covered by adsorbed species, P is the pressure, k is also a constant.

With the rapid development of economy and the deepening of China's western development, a large number of railways, roads and pipes of transporting oil, gas and water are built.
These tunnels safety is related to both its own geological characteristics and many various kinds of natural factors, such as earthquakes and environmental vibration caused by volcanic eruption and explosion. “5.12 Wenchuan” earthquake caused a large number of tunnels collapse, rail and road traffic disruption, destroying water conservancy and hydroelectric engineering facilities and so on, bringing a huge economic loose to the country and people’s life and properties.
Its stress-strain characteristic is influenced by the grain size, structure characteristics, stress history and drainage condition, etc.

A large number of advantages can be obtained when applying it to hydraulic concrete for protection.
After a certain number of cycles, polyurea coating mechanical strength appeared different degree of declining, mainly due to the coating internal structure that achieved certain close-grained degree and the hydrogen bonding and crosslinking degree were basically completed.

Under the influence of the triaxial stress state, the grain of the metal refines and the strength increases, accompanied with work hardening.
a)cupping model b)calculation results Fig. 3 Cupping model and calculation results of can body 1-punch 2-blank holder 3-blank 4-die In the ABAQUS models of cupping process and ironing process, the material of the can body was Al3104 H19; the element type was linear reduced-integration element CAX4R, which could be used to simulate the large strain in the ironing process of the sidewall, and the total number of elements was 1950.
The moulds were regarded as rigid bodies; the element type was linear rigid element; the number of the cupping model was 215 and that of ironing model was 314.

in the preparation of high performance, high functionality of the concrete material, and its role more important than cement in the concrete [1]. aminosulphonic acid-based Superplasticizer(ASP) with high water reducing rate control concrete slump loss characteristics, improving concrete workability and durability, is the most promising new superplasticizer [2] Experiment 1.1 The experimental materials Superplasticizer: aminosulphonic acid-based Superplasticizer(ASP),(self – made); naphthalene superplasticizer (FDN),( Anhui ); Table.l Physical-chemistry properties of the product of ASP Exterior Density /(g·cm-3) Cl- Content /％ Total alkali content /％ pH Solid content /% Brown red transparent liquid 1.13 0.05 3.50 11.0 34.0 Cement: Benxi Gongyuan cement plant P·O 42.5 Cement; Benxi jiaotong cement plant P·O 42.5 Cement; Shenyang Jidong P·O 42.5 Cement;Changbai cement plant P•O 52.5 Cement; Changbai cement plant P•O 42.5 Cement;Sand:coarse sand, density 2650kg/m3; limestone gravel, grain
Table.7 The composition of fresh concrete and its harding performance Number ASP (％) Water- Ce- ment ratio Out machine water reducing rate (％) Setting time(min) The amount of change at every hour Compressive strength(MPa) Slump (mm) Gas content (％) The initial setting The final setting Slump (mm) Gas content (％) R3 R7 R28 A12 0 0.70 186 1.8 0 7:46 10:48 11.3 19.6 27.1 A13 1.7 0.52 225 2.7 25.7 9:38 11:35 195 2.3 21.5/190 33.7/172 42.4/157 Table.8 The mechanical properties of fresh concrete Number Splitting tensile strength(MPa) Flexural strength(MPa) Axial compressive strength(MPa) Elastic modulus(×104) ImperviousP10 Seepage height(mm) Slow freezing 50 times Loss of strength (％) Shrinkage values (×10－6) A12 2.85 4.80 20.4 3.16 133 20 283 A13 2.99／105 5.31／110 33.5／116 3.65／116 16 15 304／107 Table 7 and Table 8 shows that，the ASP has significantly slump holding action，fresh concrete performance and compressive strength, shrinkage and other properties are in line with

Firstly, the number of the tailings dam is huge.
It is showed that the number of dam-break is maximum (57%).
Analysis of fine grain of tailings dams and stability[M].

Although the wear resistance of samples, for example, from steels with 0.7-0.8% C with the structure of sorbitol tempering, is 55-70% of the level provided by samples of steel 110G13L [1] when tested on a fixed abrasive [1], a lower cost, manufacturing and environmental problems can be solved in a number of cases with the use of pearlite steel.
Thus, using the steels of the pearlitic and ledeburite classes 150HNML and H12ML it was shown that, as a result of quenching from the normal temperature (850 °C), the microstructure of fine-grained martensite with excess carbides provides high hardness (61 НRC), but the maximum abrasion wear resistance is achieved after high-temperature hardening of steel (1100 ÷ 1175 °C), which forms a martensitic-carbide structure with metastable austenite in the amount of 15-25% and high friction hardening ability [4, 5].
However, the use of pearlitic steels allows one to achieve a lower cost and to solve techno-engineering and ecology issues in a number of cases.

Characteristic features of complex electrolytes have been the subject of research of a number of authors [6-8].
Predominant formation of three-dimensional embryos on polished titanium cathode and additive in the electrolyte of polyacrylamide corresponds to the largest share nanosized fraction in the granulometric composition and reduced number of oxygen in the resulting powders. 2.
Rashchi, Recovery of ultra fine grained silver and copper from PC board scraps, Separation and Purification Technology. 92(2012) 36–42