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Functionally gradient materials Gear design more flexible, if 20 CrMnTiH hardness and wear-resisting performance does not meet the requirements,we can replace the materials meet the requirements.
Summary through the performance analysis of the functionally gradient materials Gear and the elemental heat treatment gear, verified the feasibility of functionally gradient materials applied in gear.
Ada-ptive Slicing of Heterogeneous Solid Mod-els for Layered Manufacturing.Journal of Material Processing & Manufacturin Science,1999,7(4):324-342 [4] R.Balendra,Net-Shape Forming Stateof the Art,Journal of Materials Proc-essing Technology, 2001, 115(2): 172–179
Journal of machinery engineer. 2008, 5:74-76
Journal of mechanical transmission, 2005, 29 (2) : 10 to 13

Journal of the European Ceramic Socitey, 27 (2007)831–836
Materials Review. 2003,(12):63-65.
Composite material science,1987,13(8):257-264
[24] Liu XJ,Li TS.Polymer.Materials Science And Engineering.2000,16(1):74-76
[27] Deng JX, Zhang H, Wu Z, Liu AH.International Journal of Refractory Metals and Hard Materials,2011

Analysis of Material Management in the Construction Site Ping Li Editorial Office of Journal of Jiujiang University, Jiujiang JiangXi 332005 497287500@qq.com Keywords: Construction preparation; Construction process; Construction materials; Management Abstract.
Prepare pre-construction ( 1 ) After a construction task commitment , materials, staff should carefully read drawings, design specifications and other related documents , to understand engineering properties of the materials used and quality requirements , and the materials used to make plans according to the drawings , according to the construction schedule the materials used to make a step by step plan
Use , bills of materials used in the course of its management, is crucial, as planned orders, acceptance of orders, journal , at the end of the database table , a single storage , warehouse ledger and warehouse , picking quota single , working materials requisitioned orders, requisition , tools requisitioned cards, leasing contracts, return orders, refunding , etc., in the effective use of these notes , not only tedious work principled, but also the realization of materials management can be retrospective , standardized management of the whole project to play a facilitating role.
After the end of the project , materials, staff should be on-site materials inventory , cleaning, doing inventory table , and some of the good state of the material , equipment is identified , the last batch Return Material pool , fill refunding orders, and with the total library librarian handover procedures , the construction process to collate notes , numbers , materials Division sent your records.
References [1] Meng Zhiliang, Li Hongbin, Chengya Peng Building Materials [M] Beijing: Science Press, 2001

Liu: submitted to Journal of Advanced Materials Research. 239-242 (2011) 3310-3313
Lu: submitted to Journal of Advanced Materials Research. 250-253 (2011) 405-408
Chen: submitted to Journal of Key Engineering Materials. 629-630 (2015) 494-503
Othman: submitted to Journal of Applied Mechanics and Materials. 389 (2013) 36-39
Achal: submitted to Journal of Advanced Materials Research. 1090 (2015) 96-100

Phenol Degradation in the System of H2O2/Porous Tourmaline Composite Materials Can Lia, Yan Dingb*, Junping Meng and Lifang Zhao Institute of Power Source & Ecomaterials Science, Hebei University of Technology, Tianjin, 300130, China alicancl@126.com, bdingyan@hebut.edu.cn* Keywords: tourmaline, porous materials, composite materials, degradation Abstract.
Wang, et al.: Journal of Functional Materials.
Lu: Journal of the Chinese Ceramic Society.
Liu: Journal of Hazardous Materials.
Rodriguez, et al.: Journal of Hazardous Materials.

Watson: Journal of Nuclear Materials Vol. 258-263 (1998), p. 329
Elio: Journal of Nuclear Materials Vol. 258-263 (1998), p. 74
Slattery: Journal of Nuclear Materials Vol. 258-263 (1998), p. 308
Vieider: Journal of Nuclear Materials Vol. 258-263 (1998), p. 160
Zhang: Journal of Materials Science Vol. 40 (2005), p. 2105

The Effect of Explosive Material on the Formation of Explosively Formed Penetrator Qinshu Miao1,2, a, Xiaoming Wang1,b, Wenbin Li1,c, Weibing Li1, d, Yu Zheng1,e 1ZNDY of Ministerial Key Laboratory Nanjing University of Science and Technology, Nanjing 210094, China 2 Unit 63961 of PLA, Beijing 100012, China amqslxf@163.com, bwangxm@mail.njust.edu.cn, cacnet@mail.njust.edu.cn, dnjustlwb@163.com, ezhengyu9989@yahoo.com.cn Key words: Explosive Material; Explosively Formed Penetrator(EFP); Material Character; Numerical Simulation Abstract: In order to research the effect of explosive material on the formation of EFP, this paper studies the effect of five different explosive materials, PETN, SEP, TNT, PE4BOOSTER and 8701, on forming EFP, using ANSYS/LS-DYNA simulation software.
Five explosive materials form typical explosively formed penetrator, from PETN to 8701, the length of penetrator head long rod gradually become longer apparently, velocity and length to diameter ratio are increased. 
The EFP formed influence factors are density, detonation velocity, detonation pressure, explosion heat of explosive materials, the following are the analysis of each EFP formed influence factor of different explosive materials, the influence law of EFP formed that depend on explosives material parameters which obtain explosive density, detonation velocity and detonation pressure is researched.
From the analysis that the EFP formed influence on detonation pressure of different explosive materials, the fitting curve that EFP velocity and length to diameter ratio with detonation pressure is obtained.
References [1] Jiang Houman, Zhang Ruoqi, Zhang Shouqi: Journal of Ballistics Vol. 10(1998), p. 25-28 [2] Wu Jun, Liu Jingbo, Du Yixin: International Journal of Impact Engineering Vol. 34(2007), p. 1147-1162 [3] Li Weibing, Wang Xiaoming, Li Wenbin: International Journal of Impact Engineering Vol. 37(2010), p. 414-424 [4] Song Meili, Wang Xiaoming, Li Wenbin, Zheng Yu: INITL T0RS&PYROTECHNICS (2009), p. 16-19 [5] Li Weibing, Wang Xiaoming, Li Wenbin: Journal of Ballistics Vol. 21(2009), p. 19-23 [6] Lin Jiajian: University Of Science And Tecnology Of China (2009)

Meanwhile the explosion suppression effects of absorbing materials were studied tentatively in explosion chamber which can simulate mine gas explosion.
In order to compare the absorption effects of different aqueous materials, the same flow and same spray time should be set in every experiment.
Then methane absorption experiments were carried out using different materials and pure water.
Xu: Journal of North China Institute of Science and Technology Vol.5 (2) (2003), p. 5 [2] C.L.
Jiang: Social Science Journal of Xiangtan Polytechnic University Vol.14 (3) (1999), p. 1 [3] B.S.

Often, multifunctional materials are also called all-purpose materials due to their versatile use.
Sasmal, Evaluation of mechanical characteristics of nano modified epoxy basedpolymers using molecular dynamics, Computational materials science, 96 (2015) 146-158
Aytekin, Modification of bitumen-based roof covering material by glass reinforced polyester recyclate, Journal of material cycles and waste management, 17 (2015) 583-589
Pilon, Thermal conductivity of cementitious composites containing microencapsulated phase change materials, International journal of heat and mass transfer, 104 (2017) 71-82
Balachandra, Polymer nanocomposites processed via self-assembly through introduction of nanoparticles, nanosheets, and nanofibers, Journal of materials science, 52 (4) (2017)

Study on Virtual Material Method for Dynamic Features Analysis of Crank Connecting Rod Mechanism Shen Li1, a, Yunguang Bai1,b, Jianxiao Liu2,c, Shusen Zhao3,d and Huiqun Yuan4,e 1School of mechanical Engineering & Automation, Northeastern University, Shenyang, China 2China South Industries Group Corporation guided Air Ammuition Research and Development Center, Changsha, China 3Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China 4College of sciences, Northeastern University, Shenyang, China aemail: shli@mail.neu.edu.cn, bemail: byg031400@126.com, cemail: neu_ljx0731@163.com, demail: zhaoshusen@semi.ac.cn, eemail: yuan_hq@163.com Key words: Anisotropic virtual material method; Virtual material method; ANSYS; Dynamic features Abstract.
Assuming the virtual materials meet linear elastic material relationship in all directions in order to reduce the calculation parameters.
Journal of North China Institute of Technology, 2005, 26 (2): 107-110
Journal of Materials Processing Technology, 2011, 211(3): 467-474
Journal of Chongqing University of Science and Technology (Natural Sciences Edition), 2010, 12(3): 164-167.