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Heavy metal ion in raw materials brings lots of negative effects on pulping [4, 5], it is necessary to remove or reduce metal ions such as Mn2+, Fe2+ and Cu2+.
Experimental Materials and Methods Experimental materials and chemicals The pulping raw materials was Bamboo which was cut to 20~30mm long and stored more than two years.
Niu, in: Journal of the Hebei Academy of Sciences, In Chinese.
Shen, in: Journal of Chinese Society for Corrosion and Protection, In Chinese.
X.Gao, in: the 2nd International Conference on Chemical Engineering and Advanced Materials, July 13-15, 2012, Guangzhou, In Chinese. (2012), p.3331 [8] S.

The availability of raw materials can be guaranteed throughout the year because it comes from renewable materials.
CaO catalysts can be synthesized by heating or calcining materials containing CaCO3.
The presence of FFA that is high enough in raw materials can inhibit the transesterification reaction process.
ARPN Journal of Engineering and Applied Sciences. 11(1): 634-638
ARPN Journal of Engineering and Applied Sciences. 12(17): 5104-5108

Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] P.G.
The hybrid can be used as electrochemical materials.
While it is not reported that organic-inorganic perovskite hybrids were used as electrochemical materials.
Dimitrakopoulos, “Organic-inorganic hybrid materials as semiconducting channels in thin-film field-effect transistors”, Science, vol. 286. no. 5441, pp. 945 – 947, 1999.

Materials and Methods 2.1.
Zheng, ‘Experimental investigation of clinching CFRP/aluminum alloy sheet with prepreg sandwich structure’, Journal of Materials Processing Technology, vol. 277, p. 116422, Mar. 2020, doi: 10.1016/j.jmatprotec.2019.116422
Di Ilio, ‘Damage analysis in mechanical clinching: Experimental and numerical study’, Journal of Materials Processing Technology, vol. 230, pp. 109–120, Apr. 2016, doi: 10.1016/j.jmatprotec.2015.11.013
Kato, ‘Joining of high strength steel and aluminium alloy sheets by mechanical clinching with dies for control of metal flow’, Journal of Materials Processing Technology, vol. 212, no. 4, pp. 884–889, Apr. 2012, doi: 10.1016/j.jmatprotec.2011.11.015
American Society for Testing and Materials, pp. 625–630

Part III: control system implementation, Journal of Sound and Vibration, 274, 2004, 215 – 232 [6] P.
Gawronski, Actuator and sensor placement for structural testing and control, Journal of Sound and Vibration, 208 (1), 1997, 101 – 109
AIAA journal 30 (11), 1992, 2613 – 2617
[11] Caresta M, Active control of sound radiated by a submarine in bending vibration, Journal of Sound and Vibration 2011; 330(4):615-624
Tadeusiewicz, Place and role of intelligent systems in computer science, Computer Methods in Materials Science 10 (4), 2010, 193 – 206

The cyclic extrusion compression method is also used to produce bulk materials by powder consolidation.
Alexandrov, Bulk Nanostructured Materials From Severe Plastic Deformation, Progres in Mat.
Islamgaliev, Nanostructured materials from severe plastic deformation, NanoStructred Materials, Vol. 12 (1999), pp. 35-40
Skiba, Structure and properties of copper deformed by severe plastic deformation methods, Journal of Achievements in Materials and Manufacturing Engineering, Vol. 44/1 (2011), p. 50-56
Skiba, AgSnBi powder consolidated by composite mode of deformation, Journal of Achievements in Materials and Manufacturing Engineering, Vol. 39/2 (2010), p. 161-167.

Materials and Methods Preparation of SBFs.
Katagiri, Journal of Biomedical Materials Research 39 (1998) 536-538 [9] T.
Yao, Key Engineering Materials 396-398 (2009) 519-522 [12] S.
Yao, Key Engineering Materials 587 (2014) 160-164 [13] T.
Yao, Key Engeneering Materials 631 (2015) 326-331 [14] M.

Corrosion Behavior Research of Fe3Al Intrrmetallic Compound in H2S/CO2 Environment Binwang 1, a, Jianghu Bai 1,b , Dongmei Zhou 1,c , Zhongying Jiang1,d , Zhen Yang1,e, Junling Zhang1,f 1 College of Materials Science and Engineering,Southwest Petroleum University, Chengdu 610500,China awangbincn89@163.com,bwenzhushiji@163.com,czdmjiayouzaza@yahoo.com.cn, d635487678@qq.com, eyangzhen0431@163.com, f1015656736@qq.com Keywords: Fe3Al;H2S/CO2; Corrosion; High Temperature And High Pressure.
Introduction In recent years, the high temperature and high pressure (HTHP)of H2S/CO2 corrosion is growing concerned as a number of high containing H2S/CO2 oil and gas field development and deep wells drilling[1-2].The key to permanently control the H2S/CO2 corrosion is the materials[3].
(In Chinese) [4] Guoliang Chen,li Junping.Order INTERMETALLIC STRUCTURAL MATERIALS.Beijing：Metallurgical Industry Publishing House,1999,1 (In Chinese) [5] N S Stoloff.Iron aluminides: present status and future prospects.
Materials Sciencean dengineering,1998,A258:1 [6] Jing Li,, Yansheng Yin, Hongtao Ma.
Corrosion Science 45,2003,2769-2786

The technology of composite materials for the aerospace industry has been developed rapidly in recent years.
It is of considerable importance for using composite materials as aerospace structures materials in order to reduce the weight of aerospace structures and improve performance.
Advanced composite materials have been widely applied in the aerospace field. [1,2] Cross beam structures of launch vehicle accelerating stage have traditionally adopt metal materials.
Due to the superior performance of ACM, the design for cross beam structures using advanced composite materials is proposed in this paper.
[8] Chen xiangbao,Handbook of Polymer Matrix Composites, Chemical Industry Press,,2004.05 [9] HAN Xu, LEI Lei, YUAN Wei, WANG Tao, WANG Zhi-jin: Optimization of the Composit Hat-stiffened Panel Based on Equivalent Model, Journal of Materials Engineering, 2009-S2-041.

Fig.6 The local split position Fig.7 Physical graph of local segmentation position The porous materials whose average porosity is 2 µ without processed and the average porosity is 5 µ with initial grinding are selected to divided into 10mm × 10mm × 10mm small cube with EDM.
Therefore, milling and initial grinding make the distributed of porous materials permeability very unevenly.
Acknowledge This work is supported by the National Natural Science Foundation of China (No.51205285).
This work is supported by the National Science and Technology Major Project (2011ZX04016-011) References [1] Kwan Y B P, Corbett J: Wear Vol.222 (1998), p. 69 [2] J.H.
Sheinberg: Machine and Tooling Vol.31(1960), p. 24 [5] Mori H, Yab H, Shibayama T: Journal of Basic Engineering Vol.87 (1965), p. 622