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Sketch of excavation and support of profile 2-2 Model parameters and load conditions In the finite element method, the rock mass of the intake slope is simulated as an elastoplastic body, and the Mohr-Coulomb criterion is chosen for its effective describing the characteristics of geotechnical materials.
Reference [1] Yuchuan Shi, Wenkai Feng, Hanchao Liu, Chunhong Zhou, Zhigang Shan: Journal of Southwest Jiaotong University, 2004, 39(5):609-613 [2] Chenghu Wang, Manchao He, Qiliang Guo: Rock and Soil Mechanics, 2007,28(Supp):581-585 [3] Zhiping Liu, Xiufeng He, Shuhui Zhang: Shuili Xuebao, 2009, 40(6):709-715 [4] Jianlin Li, Jie Liu, Lehua Wang: Chinese Journal of Geotechnical Engineering, 2007, 29(9):1289-1295 [5] HydroChina Chengdu Engineering Corporation: Feasibility study report on jinpinghydropower station at Yalung river.(2003)
[6] HydroChina Chengdu Engineering Corporation: Study on high slope stability and support technology in hydropower engineering at deep-cutting valley.(2007) [7] Xiaolong Tan, Weiya Xu, Dawen Liu, Dewen Cai: Shuili Xuebao, 2010, 41(3):294-299 [8] Xiaolong Tan, Weiya Xu, Guilan Liang, Yongdong Meng, Jinlong Zhang: Rock and Soil Mechanics, 2010, 31(5):1633-1637, 1650 [9] Yinren Zheng, Shangyi Zhao, Luyu Zhang: Engineering Sciences, 2002, 4(10):57-61
[10] Shangyi Zhao, Yinren Zheng, Weidong Deng: Chinese journal of rock mechanics and engineering, 2003, 22(2):254-260.

After debris flow passes through piedmont outlet, the gully of Lijiagou doesn’t restrict flow, and debris flow moves in a dispersed manner and hydrodynamic power decreases, the solid material is deposited on the accumulation area.
In case of heavy rain, loose solid material runs with water flow to form a high-speed and destructive debris flow, resulting in significant economic losses and personal injury on the county.
Journal of Chengdu University of Technology(Science & Technology Edition), 2006, 33(2): 162-167
Journal of Seismology, 2004,24(1): 41-45
The Chinese Journal of Geological Hazard and Control, 2008, 19(2): 27-31

This paper supposes a perforated T-shaped steel dampers uses T-shaped steel for the material.
With the improvement of science and technology and people's living standard, the ability of prevent earthquake disasters has been improved, the structure of the damping control technology has get more and more researchers’ attention both at home and abroad due to its characteristic of economy applicable energy consumption, simple structure, convenient maintenance, and the better damping effect. so the technology has become an effective method to dissipate earthquake energy.
T -type mild steel damper is made ​​from steel Q235, wide-flange steel model T200 × 204 × 12, a length of 300mm, for the Fig.1: Fig.1 Schematic diagram of T with perforation types This damper choose the force in the plane , since the greater stiffness of the steel and prone to shear yield to dissipate energy under the form of force , in order to overcome the deficiencies of damper in the form of the plate force , we choose openings in the plate plane to achieve the purpose of multi -point yield at the same time.Material constitutive relation uses ideal elastic-plastic material model , the relevant parameters in Table 1.In the Table 1, is yield stress, is ultimate strength, E is modulus of elasticity, is yield strain and is ultimate strain.
Journal of Harbin Institute of Technology. 2008(In Chinese)

This material can be prepared as thin membrane [6] which is considered suitable for periodontal application.
Materials and Methods Preparation of Carbonate Apatite Membranes.
Surface topography influences interaction between material and environment, such as with cells and proteins [9].
Angle between liquid-solid intersection line and liquid-air was noted as q angle and measured to determine materials surface wettability.
Mirkovic, Antibiotics in the management of periodontal disease, Scientific Journal of the Faculty of Medicine in Nis 27(2) (2010) 85-92

This paper uses an all-polymeric pressure bar to achieves a closer impedance match between the pressure bar and the specimen materials.
The features of rubber materials are low strength, low wave propagation velocity and low mechanical impedance.
These mechanical characteristics of rubber materials provide the damping capacities of severe vibration and shock loadings.
We used a polymeric pressure bar set-up for the SHPB to test soft materials.
Kim: Journal of Materials Science Letters Vol. 19 (2000), p. 1805-1808

It is certain to decrease the tensile strength and elongation of material.
[4] HU Hai-ming, Development of research on ZA27 alloy-A review, Materials Review. 12(1998) 17-20
Li, Effects of Mg and RE additions on the semi-solid microstructure of a zinc alloy ZA27, Science and Technology of Advanced Materials. 4 (2004) 495-502
Asahuri, Globular structure of ZA27 alloy by thermomechanical and semi-solid treatment, Material Science and Engineering.
[13] CLEGG A, Squeeze casting-A new process technology for engineer, Foundry Trade Journal. 166(1993) 484-485

Semi-solid Deformation of Al-Fe Alloy Prepared by Electromagnetic Stirring LIU Bo1, 2, a, YUAN Xiaoguang1, b, HUANG Hongjun1, ZHANG Shaohua1 1 School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110178, China. 2 School of Naval Architecture and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316000, China.
The industrially pure elemental Al (99.7%), Fe (99.5%), Mn (99.7%), and Cu (99.95%) were used as starting materials to make into Al-20wt.
Then these raw materials were remelted in an electrical resistance furnace, and covered the approximately 1.2wt.% of mixed salt mainly composing of K2TiF6, KBF4, Na2ZrF6, KCl, NaCl.
At low temperature (610℃) deformation, it requires higher stress to be caused by moving the microstructure of semi-solid materials.
International Materials Reviews. 47(2) (2002), p. 49 [4]O.

Experimental Materials.
Both materials show characteristic loading and unloading paths for elastomeric materials with highly non-linear curves and a clear hysteresis loop.
Materials & Design Vol. 156 (2018): pp. 514–527. https://doi.org/10.1016/j.matdes.2018.07.020
Chinese Journal of Polymer Science Vol. 40 No. 5 (2022): pp. 504–514. https://doi.org/10.1007/s10118-022-2692-6
Journal of the Vacuum Society of Japan Vol. 60 No. 12 (2017): pp. 502–506. https://doi.org/10.3131/jvsj2.60.502

Study on Byproducts Recycling in Eco-industrial Parks Xiaolong Gao1,a*,Ruiqing Li2,b,Ran Li3,c 1Institute of Recycling Economy,Beijing University of Technology ,Beijing,100124,China 2 College of Materials Science and Engineering, Beijing University of Technology,Beijing,100124, China 3The School of Economics, Nankai University ,Tianjin,300457,China a*gaoxl@emails.bjut.edu.cn,blirui.qing@163.com,cliran1988cool@126.com Keywords: eco-industrial parks(EIPs), byproducts recycling, ecological correlation degree among enterprises, rate of byproducts recycling Abstract: Eco-industrial parks represent the future direction of the development of industrial system.
The lever analysis forwarded by Professor Statty in 1970s has been applied to analyzing the assessment index system of EIPs[3].Material flow analysis ,the method of the metabolic conversion of material resources in economic activity, focused on quantitative research of total substance in the integrated economic and environmental system.
Allied scholars have found specific framework of state of the substance in the economic system by material flow analysis[4].
Industrial symbiosis is a subset of industrial ecology, with a particular focus on material and energy recycling.
References [1]Xiaomei Sun,Zhaojie Cui,Liulei Zhu:China population,resources and environment.Vol.20(2010, p.123(In Chinese) [2]Tao Peng,Linjun Li, Hongfang Lu: Ecology and Environmental sciences.Vol.19(2010), p.1611(In Chinese) [3] Jun Wang, Siyu Yue, Qi Qiao: Research of environmental sciences.Vol.21(2008), p.175(In Chinese) [4] Yicheng Ye, Lihua Ke, Deyu Huang:Beijing:Metallurgical industry press.(2006), p.43(In Chinese) [5] Tiejun Dai, Zhongwu Lu: China environmental science.Vol.26(2006), p.632(In Chinese) [6] Information on http://en.wikipedia.org/wiki/Industrial_symbiosis [7]Information on http://www.inbicon.com [8]Andersen,M:Resource Efficiency,Green Week,Brussels(2011) [9]Jacobsen,N.B:Journal of Industrial Ecology.Vol.10(2006), p.239 [10]Information on http://www.novonordisk.com [11]Information on http://www.symbiosis.dk

From Fig.11 and 12, we can see stray current decreases versus the soil resistivity or insulating material resistivity when the others parameters are fixed, i.e. improve the soil resistivity or insulating material resistivity can decrease stray current corrosion to the buried metallic pipeline.
[4] Nestor Perez, Electrochemistry and Corrosion Science, (New York, America: Kluwer Academic Publishers, 2004), p.260-261
Zakowski, A new time–frequency detection method of stray current field interference on metal structures, Corrosion Science, 46 (2004) : p.1061–1070
[8] Beggs J, Fitzerald JH, Stray current testing on gas distribution piping following start-up of a new light rail transit line, Materials performance, 44 (2005): p. 22-25
Castellote, Feasibility of determining corrosion rates by means of stray current-induced polarization, Journal of Applied Electrochemistry, 38 (2008); p. 1466-1476