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The search for alternative piezoelectric materials is now being focused on alkali noibates, modified bismuth titanates, etc.
Among these materials, similar to (Na1/2Bi1/2)TiO3-based materials have the perovskite structure, and these materials show excellent properties such as relatively high piezoelectric properties.
Recent electromechanical studies [8] demonstrated that Ba(SnxTi1-x)O3 [abbreviated as BST] is basically suitable as environmental-friendly materials for electromechanical sensor and actuator applications.
Acknowledgement The author would like to acknowledge the financial support of the National Science Council (under contract NSC-99-2215-E-232-002) of the Republic of China.
[8] Chun-Huy Wang: Japanese Journal of the Applied Society, Vol.48, (2009), p. 041403

With the composite development of spatial configuration and function of the arcade, it puts forward new requirements of materials and structures.
For the modern building materials applications such as steel or glass, and the introductions of structure system such as cable, film and inflatable, it enriches the morphological characteristics of the arcade building and reflects strong sense of times.
The use of Local Material.
In addition, local materials are usually used in conjunction with colors, such as red, orange and other vivid hues, which are extensively applied to detail treatment of the arcade commercial street to highlight lively atmosphere and popularity.
Day, New urbanism and the challenges of designing for diversity, Journal of Planning Education and Research, 23 (2003) 83-95

(3) lack of data on the basis of equipment, spare parts ledger control and management of unified science, mainly have the following questions: encoding rules is unreasonable, not standardized, are not uniform.
The combination of the three main complete equipment assets, production materials procurement process.
Reported according to the device materials use unit spare parts and materials requirements planning, inventory and spare parts, materials consumption of spare parts procurement plan, procurement plan according to the spare parts and materials to determine the manufacturer of the goods, signed a contract, acceptance of storage, inventory management, financial settlement, complete the whole process.
Digital Technical Journal,2008,7(1):7-22.

Fig. 1 Simplified Lamp Model The materials and the parameters of the components are shown in Table 1.
The magnitude of the heat conduction coefficient shows the conduction capacity of the material.
Table 1 Materials and Parameters of the Components Material Parameter Thermal Conduction [w/m.℃] Specific Heat [J/kg.℃] Density [kg/m³] Aluminum 237 897 2700 Copper 401 390 8960 PCB 1.6-2.2 890 2700 6063 Aluminum Alloy 201 900 2700 Silicon 125-150 700 2340 The luminous efficiency of the LED is about 15%-20%, the rest energy transforms into thermal energy.
Suppose all the materials are isotropic and combined well.
Velraj: International Journal of the Computer, the Internet and Management, Vol. 16 (2008) No.3, p1.

Introduction Along with the development of grinding technologies, many new materials appear on the market, which special properties and applications result from their higher fineness.
One of these materials is microfine cement obtained as a product of ultrafine grinding of cement clinker, gypsum and special additives.
Materials and Methods Three commercial cements were used in this research: CEM I 42.5N cement produced by Russian manufacturer (OPC), microfine cement 1 (MFC-1) and microfine cement 2 (MFC-2).
Early-age properties of cement-based materials.
I: Influence of cement fineness (2008) Journal of Materials in Civil Engineering, 20 (7), pp. 502-508

Materials and Methods The raw materials used for bio-oil were larch powders which were pyrolyzed at 450℃ in a vacuum stirring reactor, the product we obtained is a dark viscous liquid and its pH is 2.8, water content is 45%.
Acknowledgement The authors would like to be grateful for the support of 2012 Beijing Natural Science Foundation “Research of heat and mass transfer in biomass particle during flash pyrolysis” (NO.3122026).
International Journal of Chemical Reactor Engineering, 2009, 7: A51
Resole resin products derived from fractionated organic and aqueous condensates made by fast-pyrolysis of biomass materials: U.S.
Advanced Materials Research, 2011, 306: 1532-1536

Influence of welding parameters on residual stress in 9% Ni steel for low temperature service Chunyan Yan1, a, Wushen Li2,b and Shiwu Bai3,c 1College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, China 2School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China 3Petroleum-Gas Pipeline Research Institute of China, Langfang 065000, China ayanchunyan1982@126.com, bliwushen@163.com, cbsw845@163.com Keywords: 9% Ni steel; multilayer welding; numerical simulation; welding parameters Abstract.
The composition of the material used in the present study are given in Table 1.
The von Mises stress is often used to predict yielding of materials under any loading condition.
[3] Avery R E, Parsons D.Welding Journal Vol. 74 (1995), p. 45-50
In: The International Conference on the Joining of Materials, Denmark, 1997

Fig.1 Finite element model of the composite rubber suspension The Basic Theory of Constitutive Relation for Rubber Materials The rubber materials are highly nonlinear elastic, and its stress and stress-strain relations are more complex.
No matter how the material model of the rubber is defined, the analyzing on rubber material need appropriate material parameters.
The elastic modulus of rubber material is one of the basic parameters, and it has association with the hardness, temperature and shape of the rubber.
It must be noted here that the effect of the rubber shape should be taken into consideration in finite element analysis, and the effect of the rubber temperature on material parameters can be neglected in the process of design process.
Nonlinear viscoelastic model for one dimensional response of elastomeric bushings[J].International Journal of Mechanical Sciences,1998, 40(12,):1295-1305

Introduction Piezoelectric ceramics are one kind of important functional materials and widely used in electronic, optical, thermal, acoustical fields.
The impedance values and resonance frequency of piezoelectric materials could be obtained by the apparatus.
The latter is to read free capacitance of piezoelectric materials, so as to set the boundary of piezoelectric body in a free state.
The values are close to each other becasue they belong to the same material.
Journal of Micromechanics and Microengineering, vol.20 (2010) 115019 [4] M.

Microstructure and Tensile Properties of Oxide Dispersion Strengthened Molybdenum Alloys prepared by different doping process Yuanjun SUN, Guojun ZHANGa,Chao ZUO, Jianfeng WEI and Jun SUN State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P.
Refractory Metals & Hard Materials Vol.18 (2000), p. 205 [3] R.
Refractory Metals & Hard Materials Vol.17(1999), p. 405 [5] B.
Cockeram: Metallurgical and Materials Transactions Vol.33A (2002), p.3685 [6] T.
Sun, et al.: Advanced Engineering Materials, Vol.6 (2004), p.943 [8] A.