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Test material The experimental materials get from thickness of 150mm continuous casting slab of T700 produced by a hot rolled sheet plant, its chemical composition is shown in table1, processed into thermally simulated specimen of 6mm in diameter and 90mm in length.
Acknowledgment Project supported by the National Natural Science Foundation of China (Grant No. 51074062) and Supported by Educational Commission of Hebei Province, China(Grant No. 12212122D).
Zhou, et al: Microstructure and Property of 700MPa Grade Hot Rolled Dual Phase Steel, Journal of Iron and Steel Research. 2009 ,21(8): 24-27 [5].

Varistor characteristic analysis of the piezoresistive sensors Shi Yun-bo1,2,3,4,a, Li Xiang1, 2,3,4,b 1Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education，Taiyuan，030051，China 2National Key Laboratory for Electronic Measurement Technology (North University of China), Taiyuan，030051，China 3State Key Laboratory Cultivation Base of Dynamic Measurement (North University of China), Shanxi Province and Ministry of Education，Taiyuan，030051，China 4School of Instrument and Electronics, North University of China, Taiyuan，030051，China ay.b.shi@126.com, blixiang_0893@163.com (corresponding author) Keywords: piezoresistive sensor; varistor; Ansys; sensitivity Abstract.
Test principle of sensitivity The rate of material resistance is determined by (1) Where is the rate of resistivity.When the silicon crystal axis has a deviation with cubic crystal axes, the rate of resistance is expressed as (2) Where πl denotes longitudinal piezoresistance coefficient; πt denotes transverse piezoresistive coefficient; σl denotes longitudinal stress; σt denotes transversal stress[2]
Conclusion In order to improve the sensitivity of the sensor, the structure can be innovated and optimized,in addition to using high strain coefficient materials.In this paper, three different placement of varistor are designed, modeling and simulation are conducted by Ansys software, and the sensitive axial and transverse sensitivity are analysised and evaluated in Matlab software.The results show that the placement along with the direction parallel to the cantilever beam can inhibited the transverse sensitivity greatly, simultaneously the sensitivity of the sensitive axis is very high.
Journal of Tianjin University, 2005 (38): 901-903.

On the premise of all-round development of rural material civilization and spiritual civilization which are promoted by rural information , the study on the influence and promotion of rural information on rural life quality have become one of research focuses in the rural information technology.
The scale design of this study mainly reflected the following: [1] Information application is main measure of information technology in rural infrastructure; [2] Information service is main measure of information security organization; [3] Political factors reflect township social security, social justice and public safety and other basic security system from the perspective of institutional resources; [4] Economic factors reflect the local economic growth, economic structure and economic base from the perspective of local material; [5] Social factors reflect the local health, education and living conditions of the development from the perspective of local public resources supply; [6] Cultural factors reflect the local population profiles of leisure life and spiritual life from the perspective of spirit resource supply; [7] Environmental quality, including clean air, clean water, green and harmonious social relations
Acknowledgements Work described in this paper is supported by the National Social Science Foundation of China (No.09BSH008).
Journal of Intelligence. 2009(2):24-27

The reason is that the larger the branch diameter is, the smaller forming force is needed, and it’s easier for materials flow into branch in the branch direction.
The forming process of metal flow law tell us that branch place’s material mainly due to the ends of the filling material, small material between branches also flow into branch in the branch direction .
The reason is that the larger the fillet radius is, the smaller forming force is needed, and it’s easier for materials to flow into branch in the branch direction.
Acknowledgements The authors would like to thank the National Natural Science Foundation of China (Granted No.U0934006) for funding this research.
[6] Zhang, S: Journal of Materials Processing Technology, Vol 91(1999), p236-244

Most of the rural school buildings in Guanzhong area are architecturally constructed of masonry-concrete structure, and solid clay brick is used as the main wall materials.
However, all the school buildings have flat roofs, and the traditional local materials are abandoned in the construction, which reduces the local flavor and characteristics and adds inharmony to surrounding environment (Fig.4).
Energy-saving Strategy for Rural Schools in Guanzhong Area Obtaining Raw Material Locally and Using New Wall Materials.
Close the original south direction corridor of the classrooms, lay heat storage materials, and place plants in the corridor to form efficient sunshine rooms (Fig.5).
With quantities of people, feces, and organic garbage from agricultural and sideline products, the rural school has natural and rich advantages to set up biogas system with these abundant raw materials.

Outdoor Experimental Investigation of the Temperature Effect on the Performance of Different PV Modules Materials Maryam MEHDI1,a, Nabil AMMARI1,2,b, Ahmed ALAMI MERROUNI1,c*, Mohamed DAHMANI1,d, Aboubakr BENAZZOUZ2,e 1Materials science, New Energies and Applications research group, LPTPME Laboratory, Department of physics, Faculty of sciences, Mohammed 1st, University, 60000, Oujda, Morocco. 2Green Energy Park (IRESEN, UM6P), Route Régionale Kelaa Km 3, R206, Benguerir, Morocco.
This phenomenon consists of the creation of a potential difference at the junction of two semiconducting materials in response to electromagnetic radiation[3].
The crystalline silicon is characterized by an indirect bandgap with an energy of 1.12 eV which makes the absorption coefficient of this material lower than that of direct bandgap substances.
Materials and Methods Geographical location and climatic conditions.
International Journal of Renewable Energy Research (IJRER), 6(1), pp.306-314

Introduction A significant number of studies in materials science are devoted to the issues of structure and properties formation of the materials in the process of crystallization.
There are numerous papers among the conducted investigations that focus on the properties obtained by casting into moulds made of various materials, but, as a rule, no quantitative values of cooling rates are provided.
Martyushev, Alignment of the microstructure of castings from the heterophase lead bronzes, Advanced Materials Research. 880 (2014) 163 - 167  [3] N.V.
Petrenko, Effects of crystallization conditions on lead tin bronze properties, Advanced Materials Research.  880 (2014) 174 – 178 [4] N.V.
Semenkov, The possibility of casting surface alloying by nanopowders, Advanced Materials Research.  880 (2014) 272 - 275  [5] S.N.

Low-k materials often employ porous structure to reduce the value of k(dielectric constant).
However, along with the porosity becoming larger, Low-k material turns more fragile.
The major process of the planarization of copper interconnection layer, CMP, will destroy delicate Low-k material.
Acknowledgements This work was supported by National Natural Science Foundation of China (No. 90923025).
[4] Guo Dongming, Kang Renke, Su Jiangxiu, Jin Zhuji: Chinese Journal of Mechanical Engineering.

The material used should be available readily in market 3.
The operational cost for electrocoagulation system includes the price of materials, electrical cost, labor cost, maintenance and other fixed costs.
The major materials cost is generally depended on the type of the electrode used and the operating cost depends on electricity consumption.
The system is developed with available material and technology in Sarawak in which the materials used for fabrication should be cheap and readily available in any hardware store in Sarawak.
Wan Lili, Sarawak Peat Characteristics and Heat Treatment, UNIMAS e-Journal of Civil Engineering (2014)

The high cost of starting materials used for biodiesel production has been the major barrier, which has limited biodiesel prevalent applications.
An optimal operating condition for the production of biodiesel was established. 2 Materials and Methods The waste cooking oil was provided by the Junk sellers, in the University of Ilorin, Ilorin Kwara State, Nigeria.
The resulting black material was ground with a pestle and mortar, and screened with a sieve of 150 µm to have a uniform distribution of the biochar.
Vitra, Potential of used frying oil paving material: solution to environmental pollution problems, Environmental Science Pollution Resources. 24(2017)12220-12226 [16] N.
Balbaa, Production of biodiesel from waste vegetable oil via KM micromixer, Journal of chemistry. (2015) 1-9.