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Rural Domestic Sewage Treatment Technology Evaluation Based on Analytic Hierarchy Process Method Xunfeng Xia1, a, Beidou Xi1,b and Mingxin Wang2,c 1 China Environmental Science Research Institute, Beijing, 100012, China 2 College of Environmental and Safety Engineering, Changzhou University, Changzhou, Jiangsu 213164, China axiaxunfengg@sina.com, bxibeidou@263.com, cwmxcau@163.com Keywords: Rural sewage; Technology evaluation; Index system; Analytic Hierarchy Process Abstract.
Introduction In the past decades, China's environmental protection work focuses on the urban environment and control of key pollution sources.
Based on the above analysis, according to “Rural Sewage Treatment Technical Guidelines for Southeast China (Trial)”, “Rural Sewage Treatment Technology and Engineering Examples in Jiangsu Province” and research literatures on rural sewage treatment technology in southern Jiangsu [7-10], the following four options were promoted: (1) Technology option 1 (T1): Anaerobic Filter - Lagoon - Plant Ecology Drainage Treatment System.
By the siphon effect of distribution pipes and capillary material, the domestic sewage was evenly distributed in the artificial soil with good water and air permeability prepared according to the site soil properties.

Study on Magnetic Field Distribution in the Container of Magnetic Barrel Finishing Machine Y.Zhang 1,a , M.Yoshioka 2,b, S.Hira 3,c 1 Graduate School of Engineering, University of Yamanashi, Japan 2,3 Faculty of Engineering, University of Yamanashi, Japan a zy605625@hotmail.co.jp, byoshioka@yamanashi.ac.jp, chira@yamanashi.ac.jp Keywords: magnetic barrel finishing, media, magnet block, magnet disk, magnetic field distribution, magnetic field, polishing, polishing ability Abstract.
Media used in magnetic barrel machines are made from ferromagnetic material such as carbon steel or stainless steel.
Vol.63, No.3 (1997), p.399 (in Japanese) [4] Y.Zhang, M.Yoshioka and S.Hira: Key Eng.

Design and Production of Pearl fiber Imitating Silk Shirt Fabric Qin Ma a, Jinzhong Zhu b and Wenlin Zou c Department of Textile Engineering, Henan Institute of Engineering, Zhengzhou 450007, P.
Raw material choice Considering the pearl fiber bear's low intensity and high softness, we choose to blend the pearl fiber with cotton to improve its durability and stiff-resistance.
Acknowledgements This work was financially supported by the Henan province in 2010 key scientific research project "pearl anti-creasing clothing research" (102102210017).

Numerical Analysis of Wheel Cornering Test Incorporating the Stamping Effects Zhanguang Zheng1, a *, Jiaxiang Wang2,b and Xiyong Xu2,c 1 College of Mechanical Engineering, Guangxi University, Nanning 530004, PR China 2 Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, Nanning 530004, PR China a zhenglight@126.com, b 694969240@qq.com, czzg75527@gxu.edu.cn Keywords: Mapping algorithm; Database modification; Car steel wheel; residual stress; uneven thickness Abstract.
Due to the large deformations of the blank geometry during sheet forming process, the plastic strain occurs in material, and complex contact is involved among blank, die and punch.
Yang, A concurrent engineering approach to integrate forming effects into structure design and analysis of stamped parts, SAE.Technical paper, 880916

Siddhartha Engineering College, Krishna (Dist), Andhra Pradesh, India, PIN: 520 007 2Department of Mechanical Engineering, P.
Lebelo et al. [13, 14] analyzed the heat transfer in a stockpile of reactive materials designed in a rectangular slab by assuming a two-step exothermic chemical reaction and the heat loss to the surrounding environment is by radiation.
Makinde, Numerical investigation of CO2 emission and thermal stability of a convective and radiative stockpile of reactive material in a cylindrical pipe, Advances in Mechanical Engineering, 7 (2015), 1-11
Moloi, Transient heat analysis in a two-step radiative combustible slab, Key Engineering Materials, 872 (2021), 15-19
Kumar, Radiation and non-uniform heat sink/source effects on 2D MHD flow of CNTs-H2O nanofluid over a flat porous plate, Multidiscipline Modeling in Materials and Structures, 16 (2020), 791-809

Pekguleryuz: Journal of Materials.
Advanced Materials-SAMPE.
Vol.35(2003), p.32 [12] M.Pekguleryuz and A.A Kaya: Advanced Engineering Materials.
No.100(1992), p.353 [19] J.Bai, Y.S.Sun and S.Xun: Materials Science and Engineering A.
Wang: Materials Letters.

Function-oriented Design and Verification of Point-contact Tooth Surfaces of Spiral bevel and Hypoid gears with the Generated Gear Wu Xuncheng a, Li Cong b College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China a wuxuncheng@yahoo.com.cn, blicong@ae.buaa.edu.cn Keywords: Spiral bevel gear, Hypoid gear, Generated gear, Point-contact tooth surface, Function-oriented design, Verification Abstract.
Acknowledgement This research is supported by the Key Technology Development Project of Shanghai Municipal Education Commission（09ZZ191）and 085 Project in Shanghai（JZ0901）.
References [1] Litvin F L, Gutman Y: ASME Journal of Mechanical Design, Vo1.103(1981) , p.114 [2] Dong Xuezhu: Journal of Beijing Agricultural Engineering University， Vo1.10（1990）, p.16 [3] Tian Xingbin, Fang Zongde: Journal of Aerospace Power， Vo1.15（2000）, p.75 Table 3 Verified results No. 1 2 3 1 )2( 1 dd ϕs (mm.rad 1− ) -17.578 -17.361 -16.840 1 )2( 2 dd ϕs (mm.rad 1− ) 0.0 0.0 0.0 121 dd ϕi (rad 1− ) -0.004 -0.004 -0.004 [4] Wu Xuncheng, Mao Shimin, Wu Xutang: Chinese Journal of Mechanical Engineering， Vo1.36 （2000）, p.70 [5] Su Zhijian, Wu Xutang, Mao Shimin, et al: Journal of Xi'an Jiaotong University， Vo1.39（2005 ）, p.17 [6] Wu Xuncheng, Chen Zhiheng, Hu Ning: Chinese Journal of Mechanical Engineering， Vo1.41 （2005）, p.97 [7] Cao Xuemei, Fang Zongde, Zhang Jinliang, et al: Chinese Journal of Mechanical Engineering， Vo1.43（2007）, p.155 [8] Cao Xuemei, Fang Zongde, Xu Hao, et al: Chinese Journal of Mechanical Engineering， Vo1.44 （2008）
, p.209 [9] Wu Xuncheng, Li Cong, Zhang Ruoping, et al: Advanced Materials Research， Vo1.44-46 （2008）, p.495 [10] Zeng Tao: Design and machining of spiral bevel gears.
Press of Harbin Institute of Technology （1989） [11] Wu Xuncheng, Hu Ning, Chen Zhiheng: Chinese Journal of Mechanical Engineering， Vo1.41 （2005）, p.81

These materials usually have better mechanical performance (including hardness).
The high-energy milling processes involve the comminution of bulk materials.
Kieback, “Interfacial design of Cu-based composites prepared by powder metallurgy for heat sink applications”, Journal of Materials Science and Engineering A, 475 (2008) 39-44 [6] L.
Hill (Editor), “Nanostructure Control of Materials”, Woodhead Publishing and Maney Publishing on behalf of The Institute of Materials, Minerals & Mining CRC Press Boca Raton Boston New York Washington, DC Woodhead Publishing Limited, Cambridge England, 2006
Zhang, “Processing of Cu-Al2O3 metal matrix nanocomposite materials by using high energy ball milling”, Materials Science and Engineering A, 286 (2000) 152-156

The photodetector in the system uses photodiode manufactured by 5 mm Ge material.
Ambient gas absorption, optical fiber materials intrinsic absorption, impurity absorption, scattering losses and the lens transmittance limit can also cause transmission loss.
[2] Yuxin Yun, Xiaoxiao Zhao and Weigen Chen: High Voltage Engineering, Vol. 35, No. 9 (2009), p. 2156-2162.
[9] Ju Tang, Min Fan and Yingjun Qiu: High Voltage Engineering, Vol. 38, No. 11 (2012), p. 2919-2926.
[12] Yaogai Hu, Xiaoxing Zhang and Zhen Wang: High Voltage Engineering, Vol. 37, No. 5 (2011), p. 1166-1171.

Therefore deep-sea engineering equipments' construction has been a new growth point of profit in the shipbuilding industry, and been an opportunity for market development.
What's more, it wastes material, causing a great impact on the hull blocks and the intensity increase of the construction staff [7].
The technology not only saves materials, improves qualities but also reduces the construction period of the project.
Conclusion The technique of hull construction accuracy control is a key technology in modern shipbuilding.
Tian: Journal Of Harbin Engineering University Vol. 28(2007), p. 723 [9] L.S.