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Effect Factors on the Preparation of Polystyrene Microspheres by Emulsifier-free Emulsion Polymerization Qiao WANG, Jinliang LI, Aiping FU, Hongliang LI * Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Laboratory of New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, Qingdao University, Qingdao 266071, China.
Herein, we studied the effects of different preparation conditions, such as the concentration of PS monomer and the potassium peroxydisulfate initiator on the formation of monodisperse PS spheres. 2．Experimental Section Materials.
We also thank the Scientific Research Foundation of Department of Science and Technology of Shandong Province for financial support (ZR2010BM024).
Zheng, Study of emulsifier-free emulsion polymerization method fabricating polystyrene microsphere, Guangxi Journal of Light Industry, 2 (2007) 99-108
Sun, Study of styrene growth mechanism in emulsifier-free emulsion polymerization, Journal of Henan University (Natural Science), 2 (1994) 24-32.

This work is also supported by the National Natural Science Foundation of China (No. 50775067).
Liu: Key Engineering Materials, Vol. 455 (2011), p.427
Journal of Alloys and Compounds, 2008, 459 (1/2): 548-552
Liu and Z.Li: Journal of Functional Materials, Vol. 19 (2012) No.43, 2657-2665 (In Chinese)
Ma: Materials for Mechanical Engineering, Vol. 33 (2009) No.1, p.33-36 (In Chinese).

Study on the SiC-Al Co-continuous Phase Composites Guojian Jiang1,a, Liuliu Ding1,2,b, Yunying Liu3,c, Wei Xiong1,d, Yangsheng Ni1,e, Xiumin Yao4,f, Jiayue Xu1,g and Wenjun Li2,h 1Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China 2Tongji University, 1239 Siping Road, Shanghai 200092, China 3Shanghai Jiaotong University, 1954 Huashan Road, Shanghai 200030, China 4Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Dingxi Road, Shanghai 200050, China aguojianjiang@sit.edu.cn, bdingliuliu1988@126.com, cliuyunying@sjtu.edu.cn, dxiong1990@vip.qq.com, eniyangsheng0609@126.com, fxmyao@mail.sic.ac.cn, gxujiayue@sit.edu.cn, hwjli@tongji.edu.cn Keywords: SiC-Al, Co-continuous phase, Pressureless infiltration, Wettability.
C4 materials have aroused extensive interesting worldly owing to their special structure and properties [1-4].
Acknowledgements This work was supported by a grant of the Science-Technology Research and Development Plan of the National Railway Ministry of China (2010J010-E), the Science and Technology Commission Foundation of Shanghai City (10520501200) and the Key Disciplines of Shanghai City (J51504).
Breslin, Co-continuous composite materials for friction and braking applications, Journal of the Minerals Metals and Materials Society 58 (2006) 87- 92
[5] Junping Yao, Weiwei Wang, Bin Yang, Dry friction and wear properties of aluminum matrix composites reinforced with 3D-network ceramics, The Chinese Journal of Nonferrous Metals 14 (2004) 766-771.

Introduction In reliability test and failure detection of materials, the complete data of samples are difficult to obtain and how to deal with the incomplete data is a hot issue [1].
Most data acquired from reliability test of materials, including censored data and grouped data, are incomplete and the distribution type is often unknown.
For example, when people study the mean lifetime of some insulating materials in a given temperature, they only know the lifetime is over 500 hours; thus they set time points for monitoring in the test, and the number of failure samples in each time interval could be obtained, but the accurate failure time of each sample is unknown.
The results of the data indicate that the K-S test based on survival ratio method is fairly effective in the medium sized sample and deserves popularization in practical application of material testing and failure detection of materials.
of University of Science and Technology of China. (2009) [12] Bruce W.

Hydrolysis efficiency is generally low if we directly used cellulase for the fiber structure of natural raw materials is complex.
Ultrasound assisted dilute acid - alkali pretreatment not only fficiently destroy the fiber structure of raw materials but also reduce the dose and intensity of acid and alkaline.
Li: Chinese Journal of Biotechnology, Vol. 26(7), 2010, p.966 [6] M.
Bao: Chinese Agricultural Science Bulletin, Vol. 26(9) , 2010, p.346 [11] Tuopai Jilin Agricultural Development Co., Ltd.: http://bh64.baihang.com.cn/cn/gsgk.htm [12] Y.
Dai and L.Lu: Journal of Microbiology.

Materials and Methods Overview the study area.
Beijing: Science Press, 1988:124-139 (In Chinese)
Science,1966,37(3):11-15
Crop Science,1963,3(5):11-18
[11] Yongheng Zhu, Zongying Wang: Journal of anhui normal university (natural science edition), 2001,24(1):60-62 (In Chinese)

(b) Cavity in working-out section may lose pressure of drilling mechanism and leak its liquid to deviate the drilling place, or the drilling bit and tool could be damaged by left materials in working-out section when drilling through the area.
References [1] WANG Zhi jian, Considering and researching of drilling technology in mine rescue, Journal of Safety Science and Technology, 1 (2011)5-9 [2] LI Hu-sheng,LIU Tie-min, Reflection of the chinese disaster emergency preparedness system based on the analysis of the“3,28”Wangjia ling coal mine flood ing accident rescue , Journal of Safety Science and Technology, 06 (2010)5-12 [3] ZHAO Pu-sheng, HU Jun-fen, Status Analysis on Rescue Technology and Equipment for Personnel in Difficult in Underground Mine, Coal Science and Technology,37 (2009)38-41 [4] Lihu-sheng, LIU Tie-min, The research progresses and key scientific problems on emergency preparedness system , Journal of Safety Science and Technology, 6 (2009)5-10 [5] LIU Shao-tang and HU Li-xin, Attention to Application of Laser Range Finder in Field Events, Proceedings of First Joint International Pre-Olympic Conference Of Sports Science And Sports Engineering,Vol.2,World academic press, (2008)344-348 [6] LIU Shao-tang,
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Introduction Identified as one of major industrial materials, BPA is the common name of 4,4-isopropyllidenediphenol, 2,2-(4,4-dihydroxydiphenyl) propane, also named as 2,2-bis(4-hydroxyphenyl) propane.
Environ Science Health, 2006, 24(6): 225–255
Science of the Total Environment, 2004, 333(1-3): 185-193
Journal of Environmental Science and Health, 2005, 40(4): 265-187
Environment Science, 2001, 27(5): 315–320

Journal of Materials Processing Technology, v. 115, p. 2-8, 2008
Materials Science and Engineering A, v. 426, p. 250-262, 2006
Materials Science and Engineering A, v. 506, p. 157 – 164, abr. 2009
Materials Science and Technology, v. 21, p. 133 – 140, jan. 2005
International Journal of Materials Research. 2002/03, 208-211.

But there are also a small number of ware, with sophisticated materials, fine workmanship, high practical function and good aesthetic function, even can be used as an arts to trade.
But the sophisticated processing technology in informational era brings a wealth of materials and superior process techniques to Hakka crafts.
To ecological succeed Hakka arts and crafts, create Hakka crafts, needs to mainly take the renewable and recyclable natural materials as raw materials, and try all best to reduce the process.
Journal of Gannan Normal University.
Journal of Jiangxi Science and Technology Normal University.