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The sand with particle size of 0~0.6mm is used as the bed material.
Air was added as the gasifying medium at the bottom of the gasifier for fludizing the bed material.
The gas veolicity in the gasifier was very low(about 0.2~0.4 m/s), so it was hard to bring the high temperature bed material to the top area.
Progress in Energy and Combustion Science [J], 1999, 25: 55-116.J.
An approach for estimation contaminant release during utilization and disposal of municipal waste residues, Journal of Hazardous Materials, 1996, 47:43-45 [5] Takahiro Murakami and Guangwen Xu et al., Some process fundamentals of biomass gasification in dual fluidized bed, Fuel, 2007, vol.86(2), pp.44–255

These include the material thickness change, hardness change, tensile force fluctuation and rolling speed fluctuation, etc.
Aknowledgement This article is supported by Hebei Province natural science fund E2009000405 and E2010001163.
Simulation of effect of roll eccentricity on rolled material thickness[J] .
Advanced Materials Research, 2011, 143:148-151
Academic Journal of Beijing University of Science and Technology. 2005,27(6):728:731

Zemax has the capability to develop a large range of sources, and surfaces and objects of different geometry and materials with appropriate command and data input [20].
The material of the trough is declared as mirror.
Journal of Solar Energy Engineering, 2002. 124: p. 109-125
International Journal of Sustainable Energy, 2009. 29(1): p. 19-36
Journal of Solar Energy Engineering, 2009. 131(1): p. 011004-6

In addition to this although the real structure is not high, but the temperature is not high, in addition to the use of convection air, indoor use of the vent, and one point is the roof of the building materials the use of local rich a as the main materials, in about 3 bar laid on the upper part of the earth to achieve good heat insulation effect.
His buildings which reflect green reflected ecological, just use the so-called green paint, green building materials, green paint, the building will turn green?
In the first building materials changes, use of new energy-saving building materials, such as hollow brick and block instead of the traditional clay brick, this way to save land and energy Followed by the architectural design of the change, many modern designers to give a lot of attention and try to introduce will be green, indoor and outdoor environment to the communication and dialogue, the green into the roof top, solve construction hot problems and so on, to make greater progress.
Of course, indoor decoration materials without the use of toxic materials, but also in the normal standard are considered on the basis of, designers should also increase natural ventilation and lighting, reduce energy waste, design should be combined with the environment, the environment also should combine design.
Journal of architecture 2000

Ore-forming materials of gold placer Placer gold deposit is the result of exogenic geologicl process, its formation has experienced a complex metallogenic process. 
It is the premise condition of other factors, is there no source of ore-forming materials, the effect of other factors will disappear.
Indirect relationship: the formation provide ore-forming materials so that primary gold deposit or gold mineralized body occurrence, and that could provide materials for placer gold after weathering, erosion.
Direct relationship refers to the formation as geologic body which contain gold provide materials for the formation of placer gold metallogenic material. after physical, chemical weathering.
Journal of Mineralogy and Petrology,(2005),02:47-59

Extensive study has been carried out to develop microwave-absorbing materials with high efficiency and new absorption materials [4-6].
In the past, the spinel ferrites have been utilized as absorbing materials in various forms for many years.
Ni(NO3)2·6H2O, Co(NO3)2·6H2O, Fe(NO3)3·9H2O, and C6H8O7·H2O were used as raw materials.
. : Materials letters.
Abo El Ata: Journal of Magnetism and Magnetic Materials.

Since many of the pollutants are associated with suspended particulate materials in stormwater, SS (suspended solids) is of acknowledged importance in stormwater runoff treatment by BMPs (best management practices).
Materials and method Preparation of filter media.
On return to the laboratory, collected material was manually mixed and air-dried.
Aim: Journal of environmental engineering vol. 122, no. 1 (1996), p. 25~33 [6] S.
Lee: Material science forum vols. 510-511, (2006), p. 718~721.

Romeiko, Pipes from polymeric materials in the housing and utilities system, Textbook, Stroypolimer, Moscow, 2003
Muzia, Thermography in plastics welding processes assessment, Journal of Achievements in Materials and manufacturing Engineering, 1-2 (2010) 40-47
Misra, Microscopic aspects of surface deformation and fracture of high density polyethylene, Materials Science and Engineering. 1 (2004) 248-260
Vol'nov, Gas pipelines from polymeric materials, Zhurnal «Volga - XXI vek», Saratov, 2007
Indirect materials OP-7, ОР-10.

[15] De Angelis, F., Multifield potentials and derivation of extremum principles in rate plasticity, Materials Science Forum, Vol. 539-543, pp. 2625-2630, 2007
Journal for Multiscale Computational Engineering, Vol. 5, Issue 2, pp. 105-116, New York, 2007
[24] De Angelis, F., Computational aspects in the elasto/viscoplastic material behavior of solids, Advanced Materials Research, Vol. 567, pp. 192-199, 2012
[25] De Angelis, F., Numerical algorithms for J2 viscoplastic models, Advanced Materials Research, Vol. 567, pp. 267-274, 2012
[29] De Angelis, F., Cancellara, D., Implications due to different loading programs in inelastic materials, Advanced Materials Research, Vol. 422, pp. 726-733, 2012.

For vertical and bottom surfaces of concrete structures, paste organosilicon is the first choice as to full use the paste adsorption and non-flowing; little slope and the side should be better for liquid organosilicon. 2.3 Plot Trial Before large-scale construction, it’snecessaryto select 2 representative 1~5m2area forplot test.Amount of organosilicon is decidedaccording to concrete strength, materials, techniques and environment.
It is important to keep away with neoprene,asphaltenes and other possible corrosion-caused materials.Temperature for organosilicon painting is preferred between 5 ~ 45℃,and water content of concrete is less than 8%.It’simportant to make full use of the lowest tide periods,so as to extend the natural drying period before silanespraying. 3.3Dosage Control The amount of silane impregnation should meet the design requirements and plot trial.
[2] Tie-Jun Zhao:the Permeability of Concrete: Science Press,2006:1-4.In Chinese
[3] M.H.F.Medeiros,P.Helene.Construction and Building Materials,2009(23):1476-1484
[7] Nan-guoJin, Xian-yuJin,Jian-feiGuo.RelationshipModeling of Pore Structure and Strength of Concrete.Journal of Zhejiang University,2005,39(11):1680-1684.In Chinese