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Adsorption ability of chromium in wastewater by purified diatomite as the adsorbent material was studied.
There are many studies on using bentonite, rectorite and their modified materials to deal with industrial chromium-containing wastewater [11,12].
As a kind of porous material, the diatomite has abundant resources in our country.
[3] Gan Yu and Yafang Bao: Yunnan Environmental Science.
[8] Xu Yan and Yafeng Li: Journal of Liaoning chemical industry, Vol. 39(2010) p.143-146, in Chinese

Cd1-xMnxS belongs to a group of materials known as mixed crystals.
Magnetism and Magnetic Materials 169, 289 (1997) [3] N.
NedeljkoviS, Materials Science Forum 413, 17 (2003) [5] Y.
Lett. 22, 780 (1969) [15] Raman scattering in Materials Science, Ed.
Merlin, Springer Series in Materials Science (2000) [16] A.G.

The flow and head of the vibration pump were deduced and then the correlation between the pump characteristics and material and construction were analyzed.
In order to ensure the normal work of the pump, the maximum working stress must be less than the allowable material stress.
The tensile resistance of nitrile rubber (reinforced vulcanized rubber) is 15 ~ 30Mpa, =15/2.2=6.828Mpa means allowable stress, n is the safety factor, the plastic material, n = 1.5-2.2, here n equals 2.2, equals 15Mpa, Pressure of working surface is ，=3.0379510-4 m2, F=110794.85103=549.87N =1.81Mpa F is the force produced by electromagnetic actuator mechanism; S is the area of working surface.
Vol. 31, No7 (2003), p. 124 [3] Sang Yimeng: Zhen Jiang, Jiangsu University (2007) [4] Sun Mingli, Hu Renxi and Cui Hairong: ANSYS10.0 Electromagnetics Finite Element Analysis Tutorial Example (Machinery Industry Publications, China 2007) [5] Hsien-Tsung Chang, Chia-Yen Lee, Chih-Yung Wen etal: Microelectronics Journal.
Vol.22(2008), pp.374-389 [7] Wen Bangchun: Design of Machines and Mechanisms (Machinery Industry Publications, China 2010) [8] Li Yinshan: Maple Material Mechanics (Machinery Industry Publications, China 2008) [9] Zhu Junhua, Zhan Changsong: Reciprocating Pump (Machinery Industry Publications, China 1992) [10] Xiong Youde: Strength of Materials (Materials Science Publications, China 2009)

Mangrove wetland's function of purifying water has gradually declined.(3) Material Production: The material production of the estuarine wetland of Shenzhen River and Xinzhou River mainly embodied in Gei Wai fishpond depression, off-shore tidal flat, mangrove forest and the waters.
The biological, habitat and ecological system diversity of the wetland provide education and scientific research with objects, materials and test base.
Acknowledgements This work was financially supported by the 2009 Guangdong water resources science and technology plan projects Foundation (2009-07),National Natural Science Foundation of China (No. 41301285) and National Key Technology Support Program(NO.2012BAC06B03).
[5]Xiaoxing Zheng, Hao Zhang, and Rongxiang Wang: Journal of Fudan University (Natural Science), vol. 45, No.6, 2006, pp. 732-737 (in Chinese)
[10]Cunli Liu: Journal Of Nanjing Xiaozhuang University, No.6, 2009, pp.95-100 (in Chinese).

[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.

Introduction Functionally graded materials (FGMs) are new versions of composite materials within which the composition of two material phases varies with varying microstructure and non-uniform distribution of the reinforcement phases.
This variation across the cross-section of the material distinguishes FGMs from conventional composite materials ensuing in unique physical properties [1-2].
This FGM concept was proposed by the Japanese researchers in 1982 as materials for superior thermal stress relaxation.
Kawasaki, R.Watanabe, Thermal fracture behavior of metal/ceramic functionally graded materials, Engg.
[9] Zhaowei Zhong, Nguyen Phu Hung, Grinding of alumina/aluminum composites, Journal of Materials Processing Technology 123 (2002) 13-17

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.

D.Chen,W.Pirini,M.Ozilgen:Chemical Engineering Science. 2001,40(4): 311～320
[5] I.M.Abdulagatov,S.N.Emirov,T.A.Tsomaaeva,Kh.A Gairbekov:Journal of Physics and Chemistry of Solids.2000,61(5): 779～787
[8] Jianjun Hu,Shengqiang Shen,Tingzhou Lei:Henan Science.2007 (25):258～262, in Chinese
[9] Tao Lu,Shengqiang Shen:Journal of Engineering Thermophysics.2003 (24):100～102, in Chinese
A.G.Langrish,R.B.Keey:Chemical Engineering Science.2000 (55):3585～3598.