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According to Miner's linear cumulative damage theory, the criterion for fatigue failure of materials is that [2]: (1) Where, D is the damage degree, is the action times under stress, and is the cycle number under action of stress.
The distribution of is only related to material properties, but not to structural force condition.
Fisher, Fatigue and fractures of steel girders: submitted to Journal of Bridge Engineering (2004)
Fracture mechanics approach based fatigue reliability assessment on steel bridges: submitted to Science Technology and Engineering (2008)
Schultz, Measurement and analysis of distortion-induced fatigue in multigirder steel bridges: submitted to Journal of Bridge Engineering (2003)

It reflects the overall quality of medical materials[2].
Material and Methods 2.1 Instrument, Samples and Reagents Nicolet 6700 Fourier transform near infrared spectrometer (Thermo), Agilent 1200 high performance liquid chromato graphy (Agilent), balance with 0.0001 accuracy (METTLER), Agilent ZORBAX SB-C18 chromatographic analytical column (250 mm×4.6 mm, 5 μm), 85 batches of Forsythiae Fructus were harvested in Luoyang from July to September, 2012.
Chinese Journal of Traditional Medical Science and Technology, Mar. 2001, pp. 89
China Journal of Chinese Materia Medica, Apr. 2012, pp. 1066-1071

Unfortunately, the structure of the doped material is unstable and therefore susceptible to loss of conductivity [7,8].
Nunes: Journal of the Brazilian Chemical Society Vol. 23 (3) (2012), p. 377
Oliveira: Journal of Brazilian Chemical Society Vol. 18 (1) (2007), p. 143
Oliveira: Material Research Vol. 10(2) (2007), p. 205
Fatas: Corrosion Science Vol. 47 (3) (2005), p. 649

Mehedi Hassan5,e 1,2,3,4,5 Department of Aeronautical Engineering, Military Institute of Science and Technology, Mirpur Cantonment, Dhaka-1216, Bangladesh.
(5) This calculation of aerodynamic property lift is used to simulate the wing loading on the wing surfaces using isotropic materials in design.
Now-a-days advance aluminum are mostly used in wing construction although composite materials are the first choice due to tremendous mechanical load bearing capacity, light weight, high thermal and corrosive resistance.
Abid-Aun, Optimization of Light Weight Aircraft Wing Structure, in: Journal of Engineering and Development, Vol. 12, No. 1, (March-2008)
Patil, Aeroelastic Analysis of Composite Wings, in 37th Structures, Structural Dynamics and Materials Conference, Salt Lake City, Utah, April 15-17, 1996.

Finite Element Analysis of the Heat Transfer Problems of PCMs Yi Zhang a, Bin Huang b and Dongxu Li c College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, China azynjut@163.com, bguaniu_hb@163.com, cdongxuli@njut.edu.cn Keywords: PCMs phase change gypsum board, Heat transfer performance, Simulation analysis.
The simulation results showed that the heat transfer rate of composite PCMs(phase change materials) is higher than the PCMs, the mixture of diatomite improved the heat transfer performance of PCMs.
Materials and sample preparation Lauric acid(LA), Chemical Pure, Sinopharm Chemical Reagent Co., Ltd.
Qarnia, Numerical analysis of the thermal behaviour of a shell-and-tube heat storage unit using phase change materials, Applied Mathematical Modelling, 33 (2009) 2132-2144
Tan, Study on preparation and thermal property of binary fatty acid and the binary fatty acids/diatomite composite phase change materials, Applied Energy 88 (2011) 1606-1612

Materials Letters Vol. 60(12) (2006), p. 1538-1541 [3] T.B.
Journal of Alloys and Compounds Vol. 389(1-2) (2005), p. 169-176 [4] H.F.
Materials Letters Vol. 60(12) (2006), p. 1538-1541 [5] Y.
Materials Letters Vol. 59(2-3) (2005), p. 370-375 [7] R.M.
Transactions of materials and heattreatment Vol. 29(1) (2008), p. 137-140 [8] A.

But a good combination of damping and mechanical properties is important for structural metallic materials.
Materials Sci.
Zasadzinski, and et: Materials Chemistry and Physics Vol. 81 (2003), p. 528 [7] J.W.
Peng: Materials Science and Engineering A Vol. 252 (1998), p. 212 [8] H.S.
Yeh: Materials Science and Engineering A Vol. 277 (2000), p. 25 [9] J.

a Fund Project: Planning Study of Social Sciences, Shandong Province, China (Grant No.: 09CJGZ09).
The instruments are mainly confined to the materials consumed in production, consumption of fuel and power, the final quantity of output product and by-product.
Tab. 1 Main appearance circumstance of C4 No Instrument No Item Describe 1 A_FIQ102 Naphtha C4 Material 2 A_FIQ101 C4 Material 3 A_FIQ357 Fuel Gas Fuel 4 B_FIQ1011 Fresh Water Power 5 B_FIQ1012 Instrument Air Power 6 B_FIQ1001 LP Steam Power 7 B_FIQ1021 Nitrogen Power 8 B_FIQ138 Liquefied C4 Fuel Gas By-product 9 FICQ141 Extraction Butadiene Product 10 FIQ308 Ether MTBE Product 11 FICQ362 Butylene-1 Product Cost Items The cost elements of C4 device are listed in separate rows according to raw materials, auxiliary materials, fuel, power, labor costs, and manufacturing costs.
Dynamic data collection.Dynamic data collection function automatically obtains basic team cost data from DCS equipments, including consumption of the main raw materials, auxiliary materials and fuel and power.
Currently, the system is operating normally, and it has received good results in improving work efficiency, reducing wastage of raw materials, and real-time cost controlling, etc..

Cyclodextrines have also been used as precursor materials for the development of films and powders in chemical vapor reactors [3].
Additionally, magnetic composite materials containing powders mostly maghemite γ-Fe2O3 or magnetite Fe3O4 have potential technological applications due to their use in development of new materials for ferrofluid technology [4], water pollutant treatment [5] and biomedical applications such as targeted drug delivery [6] and hyperthermia in cancer treatment [7].
Conclusions Suspension polymerization is a novel method of manufacturing magnetic composite materials.
Hristoforou for helpful discussions concerning magnetism and magnetic materials.
Hristoforou, IEEE Sensors Journal, 6, (2006) 721-736

Materials and Design, 133(2003) 203-206
Materials and Design 30(2009) 323–9
Materials and Design, 29(2008) 2023–6
Material Science and Engineering A, 502 (2009) 99–106
Indian Journal of Science and Technology(2010).