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A Study on Novel Gas Atomization Device for Preparing Ultra Fine Metal Powder Xinan Dang a, Lili Wangb and Lijun Yangc Department of Mechano-Electronics Engineering, Shaanxi University of Science & Technology, Shaanxi Xian 710021, China adangxa@sust.edu.cn, bwang0905005@163.com, cyanglijun@sust.edu.cn Keywords: Metal powder; Gas atomization; Two fluids atomization device; Particle size Abstract.
Introduction As a new type of raw materials, metal micro-particles or powder has been widely used in metallurgy, materials, agriculture, mining, construction, chemical industry, mechanical industry and many other industries.
Acknowledgements This study was supported by Natural Science Foundation of Shaanxi China (2005E212).
Preparation and Application Technology of Ultrafine Structure (China Petrochemical Press, Beijing China, 2001) In Chinese [2] Liangxi Yu, Maiqun Zhao, Weifeng Zhang et al .Development and Application of Materials (2003) In Chinese [3] Gang Chen, Zhenhua Chen, Hongge Yan, et al.
The Chinese Journal of Nonferrous Metals (2001) In Chinese [4] Allimant, M.P.

Introduction Aluminum alloys are the prime structural material used in aircraft industry.
The starting materials are 99.999% pure Al, 99.99% pure Zn and 99% pure Ca supplied by Alfa-Aesar.
Morris, A new superplastic aluminum sheet alloy, Material Science and Engineering, Vol. 43, Issue 1 1980, pp. 85-92
Dengyun, Microstructure and mechanical properties of Mg–Al based alloy with calcium and rare earth additions, Materials Science and Engineering, Vol. 356, Issue 1-7, 2003, pp 1-7
Terasaki, Crystal structures and phase stability in pseudobinary CaAl2-xZnx, Journal of Solid State Chemistry, Vol. 179, Issue 8, 2006, pp. 2690–2697

Study on optimal circulation dynamic system and feasibility analysis for a solar biogas digester You Zhanga, Changsheng Pengb,* and Fengmin Lic The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China azhangyou417@163.com, bcspeng@ouc.edu.cn, clfm01@ouc.edu.cn * Corresponding author.
During the biogas production, fermenting materials will be transformed into biogas manure, which is a new way for harmless and resourceful realization.
Materials and methods Experimental working ambient.
Due to the biogas digester using the same fermenting materials and the microorganism living in the same growth environment, the biological heat of anaerobic fermentation was the same.
Xu: Agricultural Mechanization Research, Vol. 32 (2010), p. 170-172 [3] Lei Wu: Journal of Gansu Science, Vol. 21 (2009), p. 146-149 [4] A.P.

Investigating the use of nanoscale bilayers assembly on stainless steel plate to improve evaporation Shen-Chun Wu1, a, Dawn Wang2, b, Hsih-Shing Li1, c, Sin-Jie Lin1, d, Chao-Tsai Hsu1, e, Yau-Ming Chen3, f 1 Department of Aviation Mechanical Engineering, China University of Science and Technology, Taipei City, Taiwan, R.O.C. 2 Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, U.S.A. 3 Department of Mechanical Engineering, National Taiwan University, Taipei City, Taiwan, R.O.C.
Acknowledgements The authors would like to thank the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No.
[3] Mitzi, D.B., "Thin-film deposition of organic-inorganic hybrid materials," Chemistry of Materials, Vol. 13, pp. 3283-3298, 2001
Journal.
Advanced Materials Research, Vol. 750, pp. 2104-2107, 2013.

Fabrication of Arrays of Zinc Oxide Micro/Nano Pillars in Aqueous Solution under an External Electric Current Gangqiang Yang1, 2, 3, a, Xiaoping Zou1, 2, 3, b, Xiangmin Meng3, Gongqing Teng1,2 Corresponding to Xiaoping Zou (xpzou2005@gmail.com) 1 Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, China 2 Ministry-of-Education Key Laboratory for Modern Measurement and Control Technology, Beijing 100101, China 3 Key Laboratory of Photochemical Conversion and Optoelectronic Materials, TIPC, CAS, Beijing 100080, China a yanggangqiang08@gmail.com, bxpzou2005@gmail.com Keywords: ZnO; nanopillars; solution route; external electric current Abstract.
Among these methods, solution chemical route has become a promising option for large-scale production of 1D nano-/microscale materials due to its simple, fast, and less expensive advantages [6].
KF200907, the Program of Key Laboratory of Photochemical Conversion and Optoelectronic Materials, TIPC, CAS and the Scientific Creative Platform Foundation of Beijing Municipal Commission of Education under Grant No.
Science Vol. 271 (1996), p. 933 [2] Y.
Guo: Journal of Crystal Growth Vol. 299 (2007), p. 184

In addition, the material properties in the modal analysis must be linear, isotropic, so such linear features as elastic modulus and density of a material must be specified, and the nonlinear material properties must be neglected.
(3) Definition of material properties: the material properties of each part of ball screws linear guide feed unit are as follows: elastic modulus, Poisson's ratio, density, material damping
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (51205235) , the National Natural Science Foundation of China (51075246) and "High-end CNC machine tools and equipment manufacturing base" the National Key Scientific and Technological Project of China(2012 ZX04002013) .
Chinese Journal of mechanical engineering, 2010, 46(1), pp.92-99.

In the literature of material science we are not aware of the synthesis and characterization of SAP with polyacrylic acid/XG/bentonite where the entire polymerization process was carried out in a complete aqueous environment.Therefore, we paid attention to the synthesis and characterization of polymeric superabsorbents by introducing XG and bentonite in polyacrylic acid solution through chemical crosslinking by a polymerization technique using N,N’-methylenebisacrylamide as a crosslinker and ammonium persulfate as an initiator in a complete aqueous environment.
Materials and Methods Synthesis of Polyacrylic Acid/XG/ Bentonite superabsorbent Polymer Acrylic acid (AA, analytical grade) was commercially purchased from Dongfang Chemical Plant, Beijing, China.
The dried material was pulverized into particles and screened through a 200-mesh screen.
Acknowledgements This project was supported by the Nature Science Fundation of Hebei Province, China (# D2007000695).
[J] International Journal of Polymeric Materials, 60:1015-1025

Filter material is the core part of biofilter[1]~[3].
The material of filter is stainless steel.
Filter material is zeolite.
Filter material is quartz sand + activated carbon.
Filter material is zeolite + activated carbon.

Kim, Continuous Casting and Rolling for Aluminum Alloy Wire and Rod, Materials Science Forum, 638-642(2010)255-260
Jabłoński, Effect of Iron Addition to Aluminium on the Structure and Properties of Wires Used for Electrical Purposes, Materials Science Forum, 690(2011)459-462
Gold, Solidification Conditions and Microstructure in Continuously Cast Aluminum, Journal of Metals, 34(1982)28–34
[10] Toshio Haga, Kohei Tuchitani, Hisaki Warari, Shinichi Nishida, Casting of Bar Using a Twin Wheel Caster, Key Engineering Materials, 831(2020)46-51.

The properties of these materials were summarized in Table 1.
This maximum was 1.75 times smaller than the limit of Al-6061 material (280MPa).
Acknowledgements This work was supported by Project HNQT/SPĐP/12.19 of Ministry of Science and Technology Vietnam.
Calculation of Wing Flutter by a Coupled Fluid-Structure Method, Journal of Aircraft, Vol.38 (2001), No.2, p.334-342, https://doi.org/10.2514/2.2766 [6] D.
Applied Mechanics and Materials, Vol. 889 (2019), p. 425–433. https://doi.org/10.4028/www.scientific.net/amm.889.425