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Firstly, from cutting device analysis, summarized as follows:(1) noise reduction screen on the noise reduction effective is obvious, and disadvantage is high cost, complicated when disassembling saw blade; (2) set the damping attenuation materials on the surface inside the shield, such as felt, rubber, etc, and disadvantage is damping layer is easy to be scratched or contaminated.
Journal of Forestry Machinery, 1985, 4~5
Influence of slots and filling viscoelastic materials on vibration of circular saw[J].
Journal of Engineering Design, 2010 (5) : 355-359
Ph.D dissertation, university of science and technology in Beijing, 1994:36 ~ 59.

Specialcrack tip elements can be used at the ends of the contours, known as quarter-point elements from BEM-modeling cracks in elastic materials.
[2] Davi, G. & Milazzo, A., "Multidomain boundary integral formulation for piezoelectric materials fracture mechanics", International Journal of Solids and Structures, vol. 38, pp. 7065-7078, 2001
[3] Khutoryansky, N., Sosa, H. & Zu, W., "Approximate Green's functions and a boundary element method for electro-elastic analyses of active materials", Computers & Structures, vol. 66, pp. 289-299, 1998
Computational Material Science, vol. 13, pp. 67-80, 1998
[5] Pak, Y.E., "Linear electro-elastic fracture mechanics of piezoelectric materials", International Journal of Fracture, vol. 54, pp. 79-100, 1992

Journal of Southeast University (Natural Science Edition).
World Academy of Science, Engineering and Technology.
Journal of Structural Engineering.
Key Engineering Materials Vols (2006), p 959-962
Journal of Structural Engineering.

This paper presents the multilevel method basic theory and its material progress which is used in water lubricated plastic alloy bearing’s elastohydrodynamic lubrication(EHL) numerical calculation.
Acknowledgement This work was financially supported by the Science Foundation of Fujian Provincial Education Department (JA09179).
ASME Journal of Tribology, 1989, 108(4)：551～556 [5] W.
Science Publication China，1988，P189～204 [6] Yang Peiran .Ansys of the Fluid Lubrication .Denfense Industry Publication China，1998, P60～71

Kabeel et al. [3] presented a detailed review of solar still enhancement strategies, focusing on phase change materials and reflective surfaces as key factors in improving distillation productivity.
In 2003, Fath et al [9] identified the potential for optimization in solar desalination systems through design modifications, such as multi-effect distillation and the use of advanced materials.
Al-Hinai et al. [21] found that the double-effect solar stills showed higher productivity compared to single-effect designs, particularly when optimized for temperature gradients and cover materials.
Kalogirou, Seawater desalination using renewable energy sources, Progress in Energy and Combustion Science, 31(3) (2005) 242-281
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 44 (5) (2022) 214.

This is primarily due to the fact that the holding can create closed technological chain from raw material up to the manufacture of the final product and deliver it to the consumer.
Particularities of organizational architecture are defined by resource-intensiveness including labor, energy and raw materials.
Khan, Structure, Corporate Strategy and the Overall Effectiveness of the Organisation, Abasyn Journal of Social Sciences. 5-2 (2012) 1-13
Shimshack, Economic Perspectives on Corporate Social Responsibility, Journal of Economic Literature. 50:1 (2012) 51-84
Lin, Corporate Social Responsibility in China: Window Dressing or Structural Change, Berkeley Journal of International Law. 28-1 (2010) 64-100

Preparation of CuO/γ-Al2O3 Catalysts by Impregnationin Supercritical CO2 Li-min LI *1,a ，San-kui XU 1,2,b, Xiao-dong WANG 1,c, Nan-nan GUO 1,d, Yun-lai SU 1,e ，Peng ZHANG 1,f 1 Department of Chemistry, Zhengzhou University, Zhengzhou 450001, China 2 College of Material Engineering, Henan University of Technology, Zhengzhou 450007, China alilm@zzu.edu.cn, bSankui_xu@haut.edu.cn, cwangxdisapig@yahco.com.cn, dgnwn2005@126.com ,eYunlaisu@zzu.edu.cn,fzhangpeng586@126.com Keywords: CuO/γ-Al2O3；supercritical impregnation；catalyst preparation；catalysis degradation Abstract: CuO/γ-Al2O3 catalysts were prepared by supercritical CO2 (SC-CO2) impregnation method.
Srivastava, N .Perkas:Ultrasonics Sonochemistry Vol.10(2003), p.1 [3] C.Erkey: The Journal of Supercritical Fluids Vol.47(2009), p.517 [4] O .Sawai, Y.Oshima: Journal of Materials Science Vol.43(2008),p.2293 [5] C.Erkey: The Journal of Supercritical Fluids Vol.17(2000)，p.59 [6] Jianxia Jiao, Limin Li, Xiaofang Liu, Shuling Wang and Qun Xu: Chinese Journal of Applied Chemistry Vol.25(2008),p.1281(In Chinese) [7] Zhenyu Sun, Zhimin Liu, Buxing Han, YongWang, Jimin Du, Zailai Xie and Guojun Han:Adv.Mater, Vol.17(2005),p.928 [8] Xiaodong Yang, Mai He, Ping Fang, Sanmei Xiao and Mengfei Luo:Chinese Journal of Rare Metals Vol.30（2006),p.339 (In Chinese)

Introduction With the improvement of people's living standard, as well as growing awareness of prevention bacteria, it is important to use antibacterial materials  in medical, food processing, public facilities [1-3]. 
But it isn’t used for antibacterial materials yet and its antibacterial properties have not been researched. 
Materials and Experiments Materials.
References [1] S.H.Stelzig, C.Menneking, M.S.Hoffmann, et al: European Polymer Journal. 47(2011), p.662 [2] J.Drelich, B.Li, P.Bowen, et al: Applied Surface Science. 257 (2011), p.9435 [3] H.L.Li , C.C.Shih , Z.W.Ching , M.H.Jing, L.G.Keng: Applied Surface Science. 257 (2011), p.7375 [4] W.M.Zhang: Advanced Materials Industry. 7(2009), p.32 (in Chinese) [5] L.Y.Gao, X.D.Wang, C.B.Wang: Special steels, Vol.23(3)(2002), p. 32-34 (in Chinese) [6] Information on http://www.people.com.cn [7] Information on http:// www.baosteel.com [8] Information on http://todaysteel.com [9] Information on http://tg.mysteel.com [10]  L.Nan, Y.Q.Liu, W.C.Yang, et al: Acta metallurgica Sinica.
Vol.40 (3)(2004), p.314 (in Chinese) [12] Z.X.Zhang, G.Lin, Z.Xu: Transactions of Materials and Heat Treatment.

However, with the development of modern technology science, the demand of quartz glass increased unceasingly, natural crystal resources were facing exhaustion, and could not satisfy the demand of modern high-tech development, which encouraged people to use ordinary quartz mine alternative crystal as quartz glass mineral raw materials.
Experimental Rough Materials.
At the same time, the first level crystal being used as high-grade quartz glass raw materials, is because of its low content of impurity and gas-liquid inclusions.
Earth-Science Reviews, 2009, 97( 1-4): 184-214
[3] Zhang Shi-xuan, Studis of Eliminating the Gas- Liquid Wrapped Matter in Quartz[J].Journal of Jinzhou Normal College (Natural Science Edition):2002, 23(3): 13-14

The Shape and Size Effect of the Diatom Frustule Addition on the Compression Behavior of an Epoxy Doğuş ZEREN1,a, Kutsal KESICI2,b, Atakan SUKATAR2,c and Mustafa GÜDEN3,d 1Department of Materials Science and Engineering and 3Department of Mechanical Engineering, İzmir Institute of Technology, Urla, İzmir, Turkey 2Department of Biology, Ege University, Bornova, İzmir, Turkey adoguszeren@iyte.edu.tr, bkutsalkesici@gmail.com, catakan.sukatar@ege.edu.tr, dmustafaguden@iyte.edu.tr Keywords: Polymeric composites, diatom, frustule, deformation and fracture, compression Abstract.
Materials and Method The isolation of the Achnanthes Taeniata frustules and the following diatom culturing processes were given in details elsewhere [16].
Buehler, "Influence of geometry on mechanical properties of bio-inspired silica-based hierarchical materials," Bioinspir Biomim, vol. 7, p. 036024, Sep 2012
Buehler, "Hierarchical Silica Nanostructures Inspired by Diatom Algae Yield Superior Deformability, Toughness, and Strength," Metallurgical and Materials Transactions A, vol. 42, pp. 3889-3897, December 01 2011
Güden, "The increased compression strength of an epoxy resin with the addition of heat-treated natural nano-structured diatom frustules," Journal of Composite Materials, vol. 51, pp. 1681-1691, 2017