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Introduction One of the challenges of modern aerospace engineering is the search for lightweight and strong materials that can withstand the effect of the high temperatures and stresses.
Elastic constants are important parameters of the material response to applied macroscopic stresses.
Ishida, Science. 7 (2006) 90 – 91
Ardell, Metallurgical and Materials Transactions A. 30A (1999) 2403 – 2408
Migas, Journal of Alloys and Compounds, 750 (2018) 741 – 749

Study on magnetic chitosan microparticles for rapid removal of heavy metals Xiaoxia Lei 1,2, Lin Tang 1,2,*, Guangming Zeng 1,2, Mengshi Wu 1,2, Yaoyu Zhou, 1,2 Ya Pang 1,2, Yuanyuan Liu 1,2, Zhen Li 1,2, Guide Yang1,2 1College of Environmental Science and Engineering, Hunan University, Changsha 410082, China. 2Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China tanglin@hnu.edu.cn (corresponding author) Keywords: magnetic chitosan; adsorption; heavy metal; remove Abstract: The magnetic chitosan microparticles were prepared by microemulsion method and raid removal of Cd(Ⅱ) and Pb(Ⅱ).
Various adsorbents are developed to effectively remove heavy metal ions from waste water, such as nonpolar activated carbon[3], clays [4,5], zeolite[6], and agricultural waste materials as potential adsorbents [7,8].
The proposed adsorbents have the advantages of rapid adsorption rate and separate velocity and would become favorable materials to remove heavy metal in waste water.
Acknowledgments The study was financially supported by the Fundamental Research Funds for the Central Universities, Hunan University, Foundation for the Author of Excellent Doctoral Dissertation of Hunan Province, and the National Natural Science Foundation of China (50608029, 50808073, 51039001).
Machida, Journal of Hazardous Materials 180 (2010) 552–560 [4] O.

MCM-41 will find wide applications as potential solid acid and novel catalytic materials [1-8].
Souza: Studies in Surface Science and Catalysis Vol. 141 (2002), pp. 531-536
Sastre: Microporous and Mesoporous Materials Vol. 44-45 (2001), pp. 295-302
Jacobs: Journal of Catalysis Vol. 263, issue 1 (2009), pp. 75-82
Yu: Molecular Sieve and Chemistry of Porous Materials, Science Press (Beijing), pp.135-137, 2004 (in Chinese)

In the fields of preparing micro/nanofibers, nanowires, nanotubes, nanorods and nanoporous solid materials, most of the reports have focused on the ionic self-assembly, self-metallization, soft lithography, microcontact printing, colloid crystal assistant capillary, laser assistant immediacy incused and Longmuir-Blodgett (L-B) film [3-11].
There forth, adding all kinds of Porphyrin into polymer produce function materials which have many optical, electricity, and magnetism properties may have the tremendous potential applications include nonlinear optics, catalysts, sensors, actuators, molecular sieves, and therapeutics [18].
Experimental 2.1 Materials and instruments.
Adams: Science.
Wasielewski: Journal of porphyrins & phthalocyanines.

For ensuring the soda-lime material removal in ductile mode, the cutting depths were all 1µm [3] in tests.
This result resembled the experimental results [4-6] of tool wear in diamond cutting brittle material as silicon.
Acknowledgements This work is partly supported by the National Natural Science Foundation of China (NSFC) (Grant No.50775057).
Lee: International Journal of Machine Tools and Manufacture Vol. 41(6) (2001), p. 852 [3] M.
Li: Materials Science Forum Vol. 626-627 (2009), p. 50 [4] M.

Assessment System of Green Building in Chongqing Zhen Wen1, a, Jin Wen2,b 1Chongqing Real Estate College, Chongqing, China 2Chongqing University of Science & Technology, Chongqing, China awenzhen87@gmail.com, bwenjincq@gmail.com Keywords: green-building sustainability environment construction Abstract.
Fuller was concerned about how to combine human development goal, needs, globe resource and science technology; came up with the full use limit of material resources in building design idea.
Sustainable construction is sustainability practice in building industry, the main aim of which is to participate in production, development, plan, design, construction and maintenance departments; include building materials manufacturer and supplier.
They are makeup of final assessment index system. 2.1 Build index system Table 1 Content and code of assessment index Energy light energy use natural light intelligent shade wind energy natural ventilation heat energy heat insulation cooling and heat insulation solar energy generate electricity Water site water unified plan rainwater collection use resurgent water deal with recycling Materials raw material collection environment pollution mineral resources multipurpose use production-manufacturing energy consumption resource consumption environment pollution use functionality clean Construction safe waste process recycle environment effects of waste process Ecosystem restoration soil soil restoration water water restoration vegetation vegetation restoration 2.2 Ensure weighing Analyze international green building assessment system and combine current relation result in Chongqing that ensures index, factor and sub-factor.
Journal of Liaoning Technical University (2000) [2] Cooper, I 'Inadequate grounds for a 'design-led' approach to urban design'.

This results in mechanically not so stronger foamed ceramic materials.
New Building Materials. 5 (2005) 58-59.
New Building Materials. 35 (2008) 80-82.
Journal of the European Ceramic Society. 18 (1998) 1339~1350
Shanghai:East China University of Science and Technology(2012).

The increasing use of new materials with varying thicknesses within the automotive industry creates high demands on joining elements such as staking fasteners.
The simulation based on the non-linear Finite-element-Method (FEM) is a frequently used method within the field of computer sciences and engineering and has a high potential as an alternative verification and development method.
The material properties are shown in Table 1.
With it the quality of new geometry variants or materials could be determined without the need for cost extensive and time extensive experimental investigations.
References [1] Gerdstam J., Licentiate Thesis from Royal Institute of Technology, Stockholm (2006) [2] Pacaro R., Hanssen A.G., Langseth M, Aalberg A., Journal of Materials Processing Technology 171 (1) 2006, pp. 10-20 [3] Richard Bergner Holding GmbH & Co.

Chemical composition of the substrate materials.
Xu: Materials Science and Engineering A, vol. 352, (2003) p. 55-63 [2] C.
Martin: Materials Science and Engineering, vol. 234-236, (1997), p. 731-734, [3] D.
Coddet: Materials and Design, vol. 24, (2003), p. 309–313
Martin: Materials Science and Engineering A, vol. 246, (1998), p. 11–24 [19] J.

It has been applied to the study of the defect structure in solids since almost 30 years, and is presently used in many fields of materials science, from building materials (for instance, cement [2] and polymers [3–5] to semiconductor-based systems for the information technology [6]).
To understand how PAS works for the analysis of metal alloys, one needs to know a few details regarding the interaction of positrons with metallic materials.
When a sufficient load is applied to a metal or other structural material, it will cause the material to change shape.
[13] Troeger, L.P. and Starke, E.A., “Microstructural and Mechanical Characterization of a Superplastic 6xxx Aluminum Alloy”, Materials Science and Engineering, A277, 102-113, 2000
Journal of materials processing technology 135 (2003) 83-90