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Fig.1 Geological map of the Alxa region Data and Methods The research materials of the Badain Jaran Desert lakes include image data ETM+ (Enhanced Thematic Mapper Plus), the GDEM data, 1:50000 paper topographic map, geological map and the geomorphological map (provided by Alxa Desert World Geopark Authority), Google Earth data, and geological surveys in the field.
Li: Journal of Desert Research, Vol. 32 (2012) No.4, p.1163-1168
Panizza.: Chinese Science Bulletin, Vol. 46(supplement 1) (2001), p.4-5
Ha: Journal of Desert Research, Vol.19 (1999) No.3, p.13-16
Cheng: Journal of Changchun University of Science and Technology, Vol. 29 (1999) No.4, p.324-329

Material and Methods Study area.
Zhang, Analysis of spatial characteristics of soil erosion in mountain areas of northwestern Yunnan based on GIS and RUSLE, Journal of Mountain Science. 25(2007) 548-556.
Burch, Physical Basis of the Length-Slope Factor in the Universal Soil Loss Equation, Soil Science Society of America Journal. 50 (1986) 1294-1298
Zachar, Soil Erosion—Development in Soil Science VEDA Publication, Bratislava, 1982.
House of the Slovak Academy of Sciences

Management Science vol.6 (1959), p.80-91
Transportation Science vol.45 (2011), p.364-380
Processing of the Second International Conferences on Intelligent Processing and Manufacturing of Materials, 1999, p. 1109-1113
European Journal of Operational Research, vol.59 (1993), p.345-358
Journal of Jiangnan University (Nature Science Edition) vol.12 (2012), p.677-681.

The structure adopts wood structural materials which are produced by modern wood production technology.
The main component materials of these structures are clay brick, cement and steel.
Compare with the above three structure materials, wood absorb carbon dioxide and release oxygen in the growth process, the growth process of wood can purify air.
In fact, the combustion of wooden structure is not directly related to the combustion of building materials.
Chinese Science, E Series: Technological Science, Vol.39 No.5, p.874-877. (2009)

Heah1, h 1Centre of Excellence Geopolymer System Research, School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), 01000, P.O.
Introduction Geopolymers are a type of cross-linked long chain inorganic materials between tetrahedral AlO4 and SiO4 unit which built in three dimensional framework structure.
Methodology Materials.
Second International Conference on Sustainable Construction Materials and Technologies, (2010) June 28-30; Universita Politecnica delle Marche, Ancona, Italy
Suhong: Journal of Wuhan University of Technology Vol. 23 (2008), p. 326

Intelligent Parameters Identification of Radar Echoes in Yunnan Province Na Zhao 2,3,b, #, Jian Wang 1,a,*,#, Peng Li2,c, Zuo Jiang2,d, Zhongwen Xie2,e and Qi Mo 2,f 1 College of Information Engineering and Automation, Computer Technology Application Key Laboratory of Yunnan Province, Kunming, Kunming University of Science and Technology, China 2 Yunnan University, Kunming, China 3 Key Laboratory in Software Engineering of Yunnan Province, Yunnan University, Kunming, China aobcs2002@163.com, bzhaonayx@126.com, clipeng@ynu.edu.cn, djiangzuoyx@163.com, exiezw56@126.com, fmoqiyueyang@163.com *Corresponding author, E-mail address: obcs2002@163.com #These authors contributed equally to this work.
Acknowledgment This work has been supported by the National Science Foundation of China under Grant No. 61379032, 61262024, 61364024, by the Science Foundation of Yunnan Province, China under Grant No. 2010CD026, 2011FB036, 2012FB119, 2012FD005, by the Science Foundation of Yunnan Province Education Department of China under Grant No. 2012Y250, by the Science Foundation of Key Laboratory in Software Engineering of Yunnan Province under Grant No. 2011SE05, 2012SE308, 2012SE309, 2012SE401.
Information Technology Journal[J].
Applied Mechanics and Materials, v 55-57, p 1370-1375, 2011
Applied Mechanics and Materials, v 55-57, p 1376-1381, 2011.

The structural use of wood has increased steadily in recent times, including a renewed interest in the use of timber as a bridge material.
The percentage is very small in the construction industry whose demand of material is huge, especially in the field of large-span spatial engineering structural materials with high additional value.
The main material used is Douglas fir.
“Modern Timber Bridgse and Their Structure Types”, Journal of Architecture and Civil Engineering, Vol. 30, No. 1, 2011, pp. 83-91
“Development, Application and Prospects of Glulam Structures”, Journal of Nanjing University of Technology (Natural Science Edition), Vol. 33, No. 5, 2011, pp. 105-110

Material and methods Sample preparation and pre-treatments.
Journal of the Environmental Engineering Division. 103(1977) 815-828
Journal of Fudan University (Natural Science). 50(2011) 556-562.
Journal of Hazardous Materials. 154(2008) 1120-1126
Journal of Systems Science and Systems Engineering. 13 (2004)1-35

the abrasive wear resistance, allowing the establishment of a hierarchy in view of selecting materials for specific applications.
Materials and procedures Ductile iron with the chemical composition indicated in table 1 was used in these experiments as the base metal and a WC powder with 6 micrometer of average diameter was used as the main material to be inserted.
The tests on inserted materials show that the respective weight loss rate is the same (2.0x10 -4 g per revolution), whatever the quality of the surface finish imposed to the test piece, lower than the one obtained for the non inserted material (3.0x10 -4 g per revolution).
Shimizu: International Journal of Cast Metals Research, vol. 16, no. 1-3 (2003) p. 345-350 [2] L.
Sá: Materials Science Forum, vol. 455-456 (2004), p. 267-270 [3] N.

The inefficient material in ESO usually refers to the material whose efficiency is lower than a certain proportion of the maximum efficiency of all the material in the structure.
In other words, It also refers to the material that meets Eq.(1).
If no material meets Eq.(1), optimization must increase the rejection rate according to Eq.(2), until the inefficient material can be found under the new standard.
Journal of Structural Engineering, 2005, 131(3):,p.369～379 [5] A.
Dhingra: Optimization of truss topology using tabu search, International Journal for Numerical Methods in Engineering, 1995, 38(23), p. 4035～4052 [11] Y.M.