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Materials and Methods Sampling Samples were collected from the farmland in different directions of the livestock farms within the range from 500to 80meters. 8~10 samples were collected from the farmland around each farm as shown in Fig 1.
Journal of Agro-Environmental Science, 2005, 24 (Sup) ： 216-318
Journal of Agro-Environment Science, 2010,29(5):942-947 [7] CUI De-jie, ZHANG Yu- long.
Chinese Journal of Soil Science, Vol. 35, No. 3.Jun. , 2004 [8] Wang Hui, Dong Yuanhua,et.
Heavy Metal Contamination of Urban Soils in China: State and Prospect [J] Chinese Journal of Soil Science, Vol .39,No.5.Oct . ,2008 [10] LI X D.

Flashover Condition Analysis on Passenger Carriage Fire by Using Swallowtail Catastrophe Theory Bing LEI 1, a , Guangze DAI 2, Qingyuan WANG3 1 School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China 2 School of Materials Science & Engineering, Southwest Jiaotong University, Chengdu, 610031, P.
Journal of Thermal Science and Technology, 2006, 5(1):69~74 (in Chinese ) [2] CHEN Ai-ping, J.Francis.
Testing products and materials for their contribution to flashover in rooms[J].
Fire and Materials, 1981, 5(3):103~111 [6] Quintiere J.
Journal of XI'AN University of Science and Technology, 2005, 25(4):452~460 (in Chinese) [10] Weng Wenguo, Fan Weicheng.

The objective functions of the mathematic model are energy consumption, materials consumption, environment impact.
Case study Contributing the low utilization ratio of materials and high environmental emission, the operation mode needs to be improved in the physical production of the disconnecting valve.
Chinese Journal of Mechanical Engineering. 2008.4; 44 (4): 41-46
Journal of East China University of Science and Technology (Natural Science Edition). 2008.4; 34 (2): 273-277
Computer Science. 2007.5; 34 (5): 213-214

The zeolite ZSM-5, one of the most important catalyst materials, possesses high surface area, shape-selective catalyzing performance and unique surface acidity [10,11].
The spinel structure is stable and can be used for high-temperature refractory materials [19].
Sueiras: Chemistry of Materials Vol. 12 (2000), p. 331 [19] A.
Sasaki: Materials Letters Vol. 61 (2007), p. 4743 [21] R.
Huber: Science Vol. 330 (2010), p. 1222

Materials and Methods Materials.
The commercial-grade Multi-walled carbon nanotubes (Shanghai Aladdin Bio-Chem Technology Co., LTD) were used as filler materials.
The morphology of the nanocomposite materials were investigated by a FEI Quanta 200 Scanning Electron Microscope (SEM) at 20 kV.
Hart, Science, 339, 535 (2013)
Park, Journal of Thermoplastic Composite Materials (2014)

Therefore, ferromagnetic materials Fx Fy A B Fig.2 Scheme of magnetic field distribution and magnetic force acting an a MAG must be properly choosen.
Therefore, electric pure iron is choosen as flexible magnetic materials with the relative magnetic conductivity μ r equals to 200000.
(the diameter of some heavy crank shaft, ball cast iron as materials, the relative magnetic conductivity equals to 200.)
Jain: The International Journal for Manufacturing Science & Production.
Yan: Key Engineering Materials.

Design Restriction Now designs of multi-bar Raschel lace are restricted by conditions of use and materials.
Use of metallic, glass, segment dyed yarn and other materials tend to make lace stronger color layering effects and visual beauty.
So the selection of materials must consider properties of materials fully.
Design methods need to apply rationally according to the lace design process, performance techniques, use of materials and so on.
References [1] Gaoming Jiang: Design and process of modern warp knitting product (China Textile Press, China 2002) (In Chinese) [2] Guohong Xin and Gaoming Jiang: Journal of Textile Research, Vol. 31 (1) (2010), p. 53 (In Chinese) [3] Ying Xu and Gaoming Jiang:Shanghai Textile Science and Technology, Vol. 24 (11) (2006), p. 45 (In Chinese) [4] Lu Han and Hui’e Liang: Chinese Clothing, Vol. 8 (2008), p. 62-64 (In Chinese) [5] Ying Xu and Gaoming Jiang:Shanghai Textile Science and Technology, Vol. 24 (11) (2006), p. 46-47 (In Chinese) [6] Jing Yu and Gaoming Jiang: Journal of Textile Research, Vol. 32 (8) (2011), p. 51 (In Chinese) [7] Nanjing University of Arts: Lace design (Beijing Light Industry Press, China 1978) (In Chinese) [8] Guohong Xin and Gaoming Jiang: Journal of Textile Research, Vol. 31 (1) (2010), p.55 (In Chinese) [9] Yan Zhang: Progress in Textile Science & Technology, Vol. 1 (2010), p. 97 (In Chinese) [10] Chengyifu: History of western dyeing patterns.

For example, its power generation of triangular piezoelectric vibrator has been 3.3 times of rectangular piezoelectric vibrator in the same volume of piezoelectric materials.
The designed cylindrical piezoelectric vibrator size is Φ80mm*Φ20mm*15mm, its material kind is PZT-5H and its material density is 7.6*.
Journal of vibration and shock: Vol.29 (2010), pp.177-180
Journal of the European ceramic society: Vol.24 (2004), pp.319-323
Nanjing: Nanjing University of Science and Technology, 2012.

Material, reagents and instruments Leaves of Wedelia trilobata (L.)
Huang: Chinese Journal of Pathophysiology.
Chi:Food Science.Vol.34,no.7(2013), p.289-292.
Li, C.Y.Zhao, C.X.Wang, C.Y.Wang, C.X.Wang:Journal of Textile Research.
Huang: Science and Technology of Food Industry.

Relationship between sequence length and thermal properties of poly (ethylene terephthalate-co-4, 4’-bibenzoate) (PETBB) Jianming Jiang1,a, Junming Dai1,2,b, Shenglin Yang1,c, Guang Li1,d 1College of Material Science and Engineering, Donghua University, Shanghai 201620, China 2Sinopec Yizheng Chemical Fiber Company Limited a jmjiang@dhu.edu.cn, bdaijm.yzhx@sinopec.com, cslyang@dhu.edu.cn, dlig@dhu.edu.cn Keywords: Copolyest, Sequence length, Crystallization, Thermal property, Abstract.
Experimental Materials The raw materials used in this work include terephthalic acid (TPA), 4,4'- bibenzoic acid (BBA), ethylene glycol (EG), they are all commercially available with purity of AR.
Journal of Polymer Science: Part B: Polymer Physics 2004; 42:4255-4271 [3] R.M.Chou, C.C.Chang, T.L.Yu, Crystallization kinetics of poly(1,4-butylene-co-ethylene terephthalate), Polymer International, 2001,50:213-221 [4] Ma H., Uchida T., Collard D.
Journal of Applied Polymer Science, 93, 1793-1803 (2004) [6] Liu R.
Journal of polymer Science Part B: Polymer Physics, 41, 289-307 (2003) [7] Matsuda H, Asakura T, Nagasaka B, Sato K, Relationship between sequence distribution and thermal properties of the transesterfication product between poly(ethylene terephthalate) and poly(butylenes terephthalate), Macromolecules, 2004, 37, 4651-4657.