Search results

Results and Discussion Initial hydration of cement is accompanied by a number of complex reactions and microstructural changes due to the formation of hydration products.
As the paste sets it becomes gradually more solid-like with prevailing elastic behavior; thus the value of the phase angle (°) decreases to single-digit numbers.
Scrivener, Microstructural development of early age hydration shells around cement grains, Cem Concr Res 40 (2010) 4–13

Human factors reflect in the nearly 30 years of coal mining, people has never demonstrated urban development and urban ecosystems planning, living area were constructed arbitrarily and confusedly, ecological living environment completely accords to nature, and there is no scientific and planning co-ordination. 1.2 The piling up of solid waste and environmental pollution The solid waste produced in the coal mining coal gangue heap of emissions is the main source of environmental pollution, according to incomplete statistics, the number of coal gangue mountain has reached more than 1600, more than 4.5 billion tons, covers an area of 15000 acres, and increasing at the rate of 150 to 200 million tons per year.
Finally, we should make efforts to improve the legal system and regulatory mechanisms based on the existing conditions of coal resources cities to achieve sustainable development strategy of living environment in coal resources cities radically. 3.2 Control the industrial development direction of coal resources cities In coal resources cities of our country, there are not only large state-owned coal mines, as well as a large number of coal enterprises.
Such as using the slope of subsidence area for renovation at first, converting loblolly into puddles aquarium, planting or planting crops on the slope, establishing breeding industry, feeding mills, etc., making it complete food chain engineering systems, followed by recovering green planting, rehabilitating grass and implementing ecological restoration in a certain range of living , strengthening plant habitat construction, finally transforming coal gangue into electricity power or milling the grain for brick making which would turn waste into treasure, it can not only utilize the waste but also save energy, greatly reducing the occupation of arable land and mitigating air pollution effectively.

The whole space of the large supermarket is divided into ten independent areas: Fruits & Vegetables Area, Grains & Cereals Area, Bath Items Area, Beverages Area, Brand Zone Area, Snacks Area, Bulk Stationery Area, Frozen Goods Area, Hygiene Products Area and Commodity Area.
Table.1 Areas table Row Description Type Constraint ftype Area Number char(10) primary key fname Area name char(30) not null x_p X-coordinate int not null y_p Y-coordinate int not null Fig.4 The basic idea of software design Fig.5 The software flow chart of target area prompt Real-time Location of Customers.
In POLL mode, the response is returned to the requestor’s address. 0x0000 – 0xFFFF 9 Report Endpoint 10 Minimum Reference Nodes to use to calculate Location. 1 - 16 Table 4 Blind node find response command Byte Index Description Value 0 Status 0: Successful; 1: Not enough Reference Node responding. 1 & 2 Blind Node’s calculated X position Bits 15-2: whole meters; Bits 1-0: 0.25 meters. 3 & 4 Blind Node’s calculated Y position Bits 15-2: whole meters; Bits 1-0: 0.25 meters. 5 Number of Reference Nodes used The value is 0-8. 6 & 7 Closest (based on RSSI) Reference Node’s short address 0x0000-0xFFFA, 0xFFFE is invalid. 8 & 9 Closest Reference Node’s X position Bits 15-2: whole meters; Bits 1-0: 0.25 meters. 10 & 11 Closest Reference Node’s Y position Bits 15-2: whole meters; Bits 1-0: 0.25 meters. 12 Closest Reference Node’s RSSI Fig.7 is location engine operation [7].

Proper supplementary irrigation could enlarge leaf area of plants, improve leaf blade grain filling rate, and increase crop transpiration and soil evaporation ratio, relieve adverse effects on crop growth and development due to soil moisture deficiency[5].
The average annual temperature is 7.2°C, the average temperature in the crop growth period is 20.2℃, the number of the ≥10℃ accumulated temperature days is l69d, the effective accumulated temperature is 3298.3°C.
The number of frost-free days is 144d, the amount of annual radiation is 579.8 kJ·cm-2, the physiological radiation is 284.3 kJ·cm-2, the annual sunshine hours are 2865.5h and the growth period sunshine hours are 1 295.8 h.

EDEM is discrete element software that has the ability to model entire boundary value problems directly with a large number of particles.
Lu, M. [8] put forward the spherical particles stacking method, such as the cumulative clouds ten goals of the shape of the grain, and a tetrahedron eight goals in the round state of particles.
And we reduced the length of the sleeper to one half of the original, and reduced the number of tamping pines the corresponding.

From the principle of hard and brittle materials grinding, the increase of spindle speed means that the decrease of depth of cut taken by a cutting grain, and thus more ductile flow and less brittle fracture in the grinding process.
According to the principle of tribology, the increase of normal force Diamond wheel Air pressure n Workpiece Mica Foil thermocouple Clamping fixture Dewe-3010 Digital Power Meter Workpiece Diamond wheel Air pressure n Nozzle Water Diamond wheel Air pressure n Nozzle Water Workpiece Diamond wheel Air pressure n Lubricant oil Workpiece Journal Title and Volume Number (to be inserted by the publisher) 385 should lead to serious friction in the contact zone.
� � � � Fig.6 Thermal model for theoretical analysis r1 r2 r0 dx’ x’ A B 0 z � = � � q(x’)dx’ z x r1 2q workpiece wheel heat flux r2 n workpiece Journal Title and Volume Number (to be inserted by the publisher) 387 Theoretical Analysis of the Grinding Temperature and Energy Partition.

This coupling between thermal, mechanical and physicochemical properties plays a significant role in an increasing number of applications (systems of infra-red detection, optical switches containing superconductors, developments processes of the multi-layer components...).
This agglomeration of islands has been attributed to a change in the surface structure by surface diffusion, which results in the migration of particles between grains and promotes the formation of larger islands at the cost of smaller ones.
The quality of the interface for heat transfer purpose is attributed to the changes observed in the chemical composition like the number of bonds created in this zone supporting a very fine porosity and a better mechanical anchoring.

.%) (Table 1, 2) is related with growth of number of free carriers because of increased content of dissolved tin in solid solution In2O3:Sn.
With increasing both number of ITO film layers and coating thickness, crystallite sizes increase.
However, the largest crystal grains 100-200 nm are formed on the substrates treated with acetic acid.

The postion of sensors Double diaphragm pressure cell Pore pressure gauge Serial Number Postion Serial Number Postion 1-2 Bottom of medium fine sand 4 2-8 Bottom of medium fine sand 4 2-5 Top of medium fine sand 4 2-9 25cm above the bottom silty clay3 3-3 Top of silty clay 3 2-7 33cm above the bottom silty clay 3 4-2 Top of medium fine sand 2 5-9 43.46cm above the bottom silty clay 1 5-1 Top of silty clay 1 5-5 50.92cm above the bottom silty clay 1 Displacement meter Displacement meter 2-6 Medium fine sand 4 5-2 Silty caly1 3-8 Silty caly 3 4-9 Medium fine sand 2 3.
Initial physical parameter of soil layer Indicator Silty clay Medium-fine sand Specific gravity of solids 2.7024 2.675 Mass density(g/cm3） 1.789 1.360 Water content(%) 41.14 Plastic limit 18.6 Liquid limit 31.16 Plasticity index 11.56 Fig3.Grain size distribution curve of medium-fine sand The Stress and Deformation of Each Soil Layer Fig .4 Soil stress in Clay layer1 and sand layer2 1.

The formation of ambiguous interfaces can significantly degrade the optical performance of the DBRs and limit the number of pairs for stacking the mirrors.
No apparent voids or any large grain structures were found in the ITO bilayers, suggesting that Mie and Rayleigh scatterings could be neglected and the layers could be treated as homogeneous films with uniform refractive indices.
As expected, the sheet resistance of the DBRs decreased with increasing number of the period of the DBR structures.