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Rock material has a size effect, that make the classic design of wellbore stability model can not be directly applied to design the mud density of slimhole, therefore it needs to take into the size of the borehole effects on wellbore stability.
Analysis of borehole collapse cycling time for shale .Journal of China University of Petroleum (Edition of Natural Science), 2007, 31(1):63-67
Journal of the University of Petroleum, China(Edition of Natural Science),1993,17(4):27-29
Chinese Journal of Rock Mechanics and Engineering, China, 1998, 17(6):611~614
Experimental and theoretical study of size effect of rock material.

Experimental Procedure Materials Used.
The materials used are shown in Table 1.
Materials used.
Wu, J.and Shen: Effect of the length of the side chains of comb-like copolymer dispersants on dispersion and rheological properties of concentrated cement suspensions, Journal of Colloid and Interface Science 2009; 336: 2624-633, 2009 [10] A.
Ohta: The Trend of Air Entraining and High Range Water Reducing Agent, Journal of the Society of Materials Science, Japan, Vol.43, No.491, pp.919-929, 1994(Japanese)

Introduction The chalcogenide are one of the most widely known families of amorphous and polycrystalline materials and have been studied extensively over the past few decades because of their interesting fundamental properties and wide commercial applications.
Experimental details The bulk materials were prepared by means of the melt quench technique, from Sn, Sb and Se with high purity (99.999%).
The weighed materials were placed into cleaned evacuated (10-5 torr) silica tube, which was put in a furnace.
Othman: Journal of Physics and Chemistry of Solids Vol. 69 (2008), p. 2514. ].
The dispersion plays an important role in the research for optical materials, because it is a significant factor in optical communication and in designing devices for spectral dispersion.

Study of Frost Resistance of 50 Years Concrete Exposed to Saline Areas ZHANG DeChenga, LV YanPingb, YE ZhengMaoc School of Materials Science and Engineering, University of Jinan, China, 250022, amse_zhangdc@ujn.edu.cn, byanping358@163.com, cmse_yezm@163.com Keywords: concrete; frost resistance; high performance superfine mineral powder Abstract.
Materials The cement used was P.O. 42.5 cement.
Conclusions (1) The tested concrete, which was prepared using the selected materials according to the environmental conditions, has excellent workability and mechanical performance
Acknowledgements This work was financed by National Natural Science Foundation of China (51272092).
Vol. 32 (2002), p.615-621 In Chinese [4] Jinyu Li, Wenyu Xu, Jianguo Cao, Li Lin and Yushi Guan: Journal of Hydraulic Engineering Vol. 1 (1999), p. 41-49 In Chinese [5] Naiqian Feng and Feng Xing, in: Durability of Concrete and Concrete Structure, edited by Jungao Xue, China Machine Press, Beijing (2009) In Chinese [6] Quanlin Niu, Naiqian Feng and Jing Yang: Journal of the Chinese Ceramic Society Vol. 32-1 (2004), p. 102-106 In Chinese [7] Zhongwei Wu: Architecture Technology Vol. 30-3 (1999), p. 160-163 In Chinese [8] Ganghua Pan, Honggen Qin, Wei Sun and Jinshan Zhang: Journal of Building Materials Vol. 5-1 (2002), p. 37-41 In Chinese

Nowadays, the composite materials are often used in engineering applications.
Bermejo: Procedia Materials Science Vol. 3 (2014), p. 2071
Nahlik, Mechanics of Composites Materials Vol. 49 (2013), p. 475
Majer: Key Engineering Materials Vol. 525-526 (2012), p. 173
Hutar: Key Engineering Materials, Vol. 488-489 (2012), p. 484

They also must have good shielding properties to reduce the intensity of the electrostatic fields generated under the garment [13] and anti-static properties to not generate electric charge when come in contact with other materials [14].
If the composite structure is made from materials with different resistivity (conductive-dissipative, conductive-insulating, dissipative-insulating) then the surface covered by the measurement electrodes has a strong influence on the measurement results.
Although the knitted structure is composite and made from two materials with different resistivity, the surface (fabric’s exterior) is unicomposite and is suitable for surface resistivity investigations.
Dixon: Textile Research Journal vol. 71 (2001), p. 732
Valiene: Materials Science vol. 14 (2008), p. 157

Sometimes the Casson fluid model is stated to fit rheological data better than general viscoplastic models for several materials [1, 2].
Journal of Physics IOP: Conference Series. 14,168–79(2005)
Alexandria Engineering Journal 55.2 (2016) 1595-1606
Alexandria Engineering Journal: 524577–582(2013)
International Journal of Engineering Science.34, 10, 1145–1156(1996)

CFRP reinforced has the following advantages, (1) strength is high and tensile strength is about 10-15 times as strong as the plain bars, (2) the corrosion resistance and durability of the structure can be improved by reinforcement, (3) deadweight is light, without increasing gravity of the structure and section size, good flexibility, easy to cut out, (4) the construction is simple, without major construction agencies and working materials, easy to operate, and the economy is good.
Acknowledgements This work was financially supported by HuBei Natural Science Foundation (2009CDB095) and Fundamental Research Funds for the Central Universities (2010-IV-062).
[2] Guohui Liu: Journal of Highway and Transportation Research and Development(Application Technology) (2007) (In Chinese)
[3] Xiaoyan Sun and Xijing Mo: Journal of Chongqing Jiaotong University(Natural Science). (2008) (In Chinese)
[4] Baichun He, Zhirong Shen and Haijun Yao: Journal of Highway and Transportation Research and Development. (2006) (In Chinese)

Materials and methods Test materials and equipment.
References [1] Yanqi Liu, Jiugao Yu, Xiuping Sun: submitted to Journal of Chinese food (2004), in Chinese
Delcour: submitted to Journal of Cereal Science (2010)
[4] Jeannette Nuessli, Jean Luc Putaux, Patricia Le Bail , Alain Buléon: submitted to International Journal of Biological Macromolecules(2003)
[5] International Journal of Biological Macromolecules: submitted to starch/starke (1995).

Exposed-aggregate Cement Concrete and Raw Materials Basic Principle of EACCP EACCP is a new-type cement concrete pavement.
Fig. 1 Surface Condition of Exposed-cement Concrete Properties of Raw Materials In this paper, the strength grade of cement is adopted as 42.5R.
Zhang: Journal of Chang'an University (Natural Science Edition), Vol. 22 (2002) No. 1, p. 24-27
Shi: China Journal of Highway and Transport Vol. 17. (2004) No.4, p. 17-20
Shi: Journal of Chang'an University (Natural Science Edition) Vol. 24.