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Briefly Discussing on Red Clay in Highway Subgrade Filling Treatment Method Hanwen Deng a, Zhaohui Liub and Sheng Lic College of Traffic and Transport Engineering, Changsha University of Science and Engineering, Changsha, Hunan, 410076, China a 846941110@qq.com, b Zh2309471@yahoo.com.cn, c 9719560@qq.cn Keywords: Road engineering, Red clay, Subgrade, Compaction degree, Design theory.
The red clay is a special kind of subgrade filling materials, has the high moisture content, high liquid limit, high plasticity, high porosity, and other special project properties, and in subgrade construction of medium voltage quite hard.
The red clay is a special kind of subgrade filling materials, its main characteristic is natural water content is higher (generally greater than the best moisture content), high liquid limit, high plasticity, the settlement of subgrade deformation is stable, deformation, a long time in subgrade construction of medium voltage quite hard.
Before the red clay processing measures are: by adding gravel can improve the red clay of liquid limit and plastic index and CBR value; chemical improvement (mixed with lime, cement admixture) can effectively reduce the water content, improving strength, and at the same time, can reduce plastic index, increase the water stability; take the red clay filling the water closed, outsourcing materials for the water stability good low liquid limit soil.
Acknowledgement It is a project supported by the National Natural Science Fundation of China (51038002).

MAV (Micro Air Vehicle) can be used for many applications such as the investigation of inhospitable environments, regions contaminated by nuclear pollution or hazardous material and other inaccessible areas.
Acknowledgement This paper is funded by scientific research fund of Nanjing University of Information Science & Technology.
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There are 20 papers accepted in the Advanced Materials Research Supplementary of EC2SH2012 out of 78 submissions.
The glyceroxide material was nicely characterized with XRD, NMR, and FTIR.
Zhang and us reviewed the new development in the extraction methods of chitin/chitosan from raw materials, as well as their applications in wastewater treatment.
We believe the work is interesting for readers of the journal.
Ajun Wan, EC2SH2012 General Co-chair Yixiang Shi, General Secretary, EC2SH2012 Organizing Committee Programme Committee Pu Peng, SINOPEC Guochuan Yin, Huazhong University of Science and Technology Ming-Lai Fu, Institute of Urban Environment, Chinese Academy of Sciences Junfeng Niu, Beijing Normal University Meirong Su, Beijing Normal University Maofa Ge, Institute of Chemistry, Chinese Academy of Sciences Chaoping Cen, South China Institute of Environmental Science Yixiang Shi, Chinese Center for Resource Comprehensive utilization Technology Zhidan Liu, China Agricultural University Yuan Zhang, Chinese Research Academy of Environmental Sciences Guilin Han, Institute of Geochemistry, Chinese Academy of Sciences Ping Zheng, Harbin Institute of Technology Sheng Zhang, Case Western Reserve University Shicheng Zhang, Fudan University Jian Chai, Xi'an Jiaotong University Zhanfang Ma, Capital Normal University Shifeng Wang, Shanghai Jiaotong University

One of the greatest emergency situations that can occur in road tunnels is represented by fire, involving all conditions relating to the nature and density of combustible materials existing, smoke, toxic gases and the combustion debris from firefighting and action in order to minimize the negative consequences of it.
Conclusions The article reveales the importance of using sprinklers, without the effects of a fire event occuring in a road tunnel would be more severe for users, material and environment.
Subhajit, Impact of tunnels in environment, in International Journal of Engineering Trends and Technology (IJETT) Volume 4, Issue 8 (2013) 2-3
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Lea, Fires in tunnels, The Royal Society Mathematical, Physical & Engineering Sciences. 12 (2009) 7-8

The film material is HTV-968 high temperature molding silica gel.
Chinese Journal of Medical Instrumentation.
IEEE Sensors Journal.
Chinese Journal of Sensors and Actuators.
Chinese Journal of Sensors and Actuators.

Experimental investigations were conducted on a laboratory scale biofilter, containing mixture of compost and polystyrene inert particles as the filter materials.
Materials and methods Organisms and culture medium Mixed culture microorganisms, obtained from a sewage treatment plant in Petrochina Liaoyang Petrochemical Company was continuously acclimated to DCM as the carbon source with a special synthetic medium in a 250 mL flask.
Filter materials The packing material for the bed consisted of a mixture (60:40 v/v) of sieved compost (4 mm and 10mm size granules, 1:1 ratio) and limestone particles(4 mm size) and polystyrene inert particles (4 mm size).
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To solve these problems, a material removal model whose removal rate model can change with the profile of the workpiece is proposed in this paper.
In that way, the material removal in finishing area is homogeneous and the simply trajectory planning can get better surface quality when continuous finishing.
Conclusions In this paper, a material removal model is proposed.
Acknowledgment This research was financially supported by the National Natural Science Foundation of China (No. 51075371), Scientific Research Foundation Dr. of Zhejiang Normal University, and Youth Fund of Zhejiang Normal University (KJ20100018).
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Such materials are used in aviation and space technology, chemical engineering, as well as in the creation of individual armor and other areas.
These materials include nanocomposites based on alumina modified with carbon nanotubes.
To obtain ceramocomposites with low porosity, it should have the raw materials with an average particle size not exceeding 1.5-2 microns.
Obadele and T.langa: International Journal of Materials, Mechanics and Manufacturing Vol. 6 (2018), p. 360
Ramakokovhu, Materials & Design Vol. 128 (2017), p. 119

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According to the manual of the stress intensity factor [[] Manual of the stress intensity factor. edtied by Science Press, Beijing, (1993), p. 68 ], the form coefficient has the value of 1.12