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Experimental section 2.1 Materials The PLA used in this paper were natureworks Biopolymer 3001D with basic physical properties listed in table 1.
All of the materials were dried at 50°C for 24h.
High-speed Mixer SHR-10A Zhangjiagang Yili Machinery Co., Ltd Electronic universal testing machine CMT5105 Shenzhen Measurement Technology Co., Ltd Impact testing machine XJ-300A Wuzhong Materials Tester Co., Ltd Contact angle meter SL2008 Shanghai Solon information Co., Ltd Result and discussion 3.1 Contact angles of PLA, POE and POE-g-MAH The contact angles of PLA, POE and POE-g-MAH with water were shown in fig. 1.
Journal of Applied Polymer Science Vol. 103 No. 3(2007), 1382-1388
Journal of Applied Polymer Science Vol. 81 No. 5(2001), 1277-1285

Study on Processing Properties of Epoxy Resin System in VARI Chenhui Zhao, Guangcheng Zhang, Weimin Sun and Aihua Shi Department of Applied Chemistry, School of Natural and Applied Science, Northwestern Polytechnical University, Xi’an,710129,P.R.China zhaohui18201@163.net, zhangguc@nwpu.edu.cn, outcast191@163.com and Shiaihua2000@126.com.
As a low cost moulding technology, VARI is widely used to produce advanced composite materials.
The resin is injected through either a single or multiple inlet ports (depending on the part size and shape),then transferred into the preform by a pressure gradient (induced by the vacuum pressure), and gravity and capillary effects; (c) curing of the impregnated perform[5,6].Because VARI process is usually used to produce the large-scale composite structures such as ships, refrigerated containers and bridge deck[7], a large amount usage of raw material usage, complex and time-consuming process make it necessary to study in-depth on resin used in VARI.
Experimental Materials.
Vol. 19 ( 1998), p. 818 [7] Li Xinhua,　Zhu Yingdan,　Wang Jihui,　Gao Guoqiang: Journal of WuHan University of Technology (in Chinese), Vol. 24(2002), p. 1 [8] Liu Zhuofeng , Xiao Jiayu, Zeng Jingcheng, Jiang Dazhi, Liu Jun:Journal of National University of defense technology (in Chinese), Vol. 30(2008), p. 20

These porous substances attract substantial interest among researchers in chemistry, chemical engineering, and materials science to find novel porous stuff with improved properties and applications.
Nanoporous Materials for the Onboard Storage of Natural Gas.
Applications of nanocomposite materials in drug delivery.
Materials, 15, 7591
Caglar, (2020) Fabrication and characterization of green synthesized ZnO nanoparticle-based dye-sensitized solar cell, Journal of Science: Advanced Materials and Devices, 5, 185 – 191

Research on Improved Clustering Algorithm on Web Usage Mining based on Scientific Analysis of Web Materials Bin Li1,a, Jin Yang1,b*, Caiming Liu1, Jiandong Zhang1, Yan Zhang2 1 Laboratory of Intelligent Information Processing and Application, Leshan Normal University, Leshan Sichuan, China 2 School of Computer Science, Leshan Normal University, Leshan Sichuan, China a zishan818@163.com, b* jinnyang@163.com *Corresponding author Key words: User Clustering Algorithm; Web Usage Mining; Generalized Hamming Distance Abstract.
It means that the new algorithms have good practicability and expansibility Acknowledgment This work is supported by the National Natural Science Foundation of China (Grant No.61003310), the Research Fund of Sichuan Provincial Education Department (Grant No. 10ZC106) and the Scientific Research Fund of Leshan Normal University (Grant No.
You, “Mining the page Clustering Based on the Content of Web Pages and the Site Topology,” Journal of Software, Vol. 13-3(2002), p. 467-469
Shen, “An Efficient And Multi-Purpose Algorithm For Mining Web Logs,” Journal of Computer Research & Development, Vol. 38-3(2001), p. 328-333

The use of pre-stressed technology, making the total cross section of the concrete is always compressed state (no tension zone), while the GFRP bars and the strand is always in tension, and through hierarchical prestressed GFRP bars tensile stress remains under control status, you can give full play to the advantage of material, making the material properties into full play, for material savings, lower costs of practical significance.
References [1] Xueyi Yu: submitted to Journal of Construction Technology. 2011, 40(S1): 218-220
[5] Hui Peng: submitted to Journal of China Municipal Engineering. 2008, 4:60-62
[6] Yiheng Ge, Kejiong Ye and Lisheng Chen: submitted to Journal of Shanghai Construction Science & Technology. 2010, 2: 50-52
GCCSEE 2013 [9] Guoshu Shen: submitted to Journal of Zhuzhou Institute of Technology.2006,6:90-93 [10] Chonghu Jiang: submitted to Journal of Highway and Automotive.2008, 2:133-135

(5) Although the drying materials are not flowing, by controlling the flowing of secondary steam, the drying materials can be regarded as flowing.
Hot fresh vapor enters the first drying room to heat the solid materials in it, meantime secondary steam discharged from the first drying room enters the second drying room to heat the solid materials there.
The drying materials are not flowing, after drying material of the i effect drying dried by the secondary steam of the i-1 effect drying room produced, it is regarded as i+1 effect drying.
International Journal of Heat and Mass Transfer.
Journal of food Engineering.

Luo: Journal of Mountain Science.
Gater: Journal of Archaeological Science.
Huo: Advanced Materials Research.
Huang: Journal of Mountain Science.
Li: Journal of Yunnan Normal University (Humanities and Social science).

Relative density of sintered materials rise and pore size reduce with increasing of cold isostatic pressing.
Therefore, one of the present studies of Si3N4-based ceramics is sintered with nitrogen pressure with more additives which will affect the mechanical properties of materials at high temperature [4-5].
Cold isostatic pressing – normal press sintering 1700 0 99 1800 40 59 Hot press sintering 1600 52 47 1650 60 39 Microstructure of sintered materials.
Fig.5 shows the pore microstructure of sintered materials.
Vol. 475-479 (2004), p. 2987 [7] Luo J T and Liu R P: Journal of Wuhan University of Technology—Materials Science.

Materials and methods Raw material and equipment Acid soluble collagen (ASC) and pepsin soluble collagen (PSC) of Amiurus nebulosus skin Ubbolohde viscometer (inner diameter 0.6 ~ 0.7mm), 76-1A Digital display glass constant temperature water-bath trough, DELTA 320 pH meter, Cronometro.
[4] Youru Huang, Yufei Hua, Aiyong Qiu: Journal of Cereals & Oils, (4): pp. 18-21, (2005)
[9] Lili Chen, Li Zhao, and Hua Liu: Advanced Materials Research, Vols: 236-238, pp. 2926-2934, (2011)
Journal of the Society of Leather Technologists and Chemists, 90: pp. 23–28, (2006)
[12] Fengping Ding: Chinese Journal of Biochemical Pharmaceutics, (4): pp. 51- 52, (1990)

This paper mainly pays attention to the machining efficiency, which is related to material removal rate (MRR).
The workpiece material is RT 6002.
So it is required that all users can query properties of machine tool, cutter, workpiece material and milling parameters.
Acknowledgement The author acknowledge the financial support of Jiangsu Provincial Postdoctoral Science foundation funded project, China (0802025B) Reference [1] X.
Kishawy: International Journal of Machine Tools & Manufacture Vol. 42 (2002), p.595 [4] C.