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The lubrication properties of microbial cells and their biopolymers Marvin Redetzky1,a, Andreas Rabenstein2,b, Benedikt Seidel1,c and Ekkard Brinksmeier1,d 1 Foundation Institute of Materials Science, ECO-Centrum, Badgasteiner Straße 3, 28359 Bremen, Germany 2 Bremen Institute for Material Testing, Department of Microbiology, Paul-Feller-Straße 1, 28199 Bremen, Germany a redetzky@iwt-bremen.de, b rabenstein@mpa-bremen.de, c seidel@iwt-bremen.de, d brinksmeier@iwt-bremen.de Keywords: Lubrication, tribology, microorganisms Abstract.
Furthermore MWF have to fulfill secondary requirements like e.g. an ecological- and material compatibility, anti-foaming properties and a corrosion inhibition.
To overcome these limitations the development of an environmentally friendly and resource-saving MWF on a microbial basis is currently investigated at the Foundation Institute of Materials Science (IWT) in Bremen.
F.: Causes of Skin-Sores and Boils Among Metal Workers: An Investigation by the Houghton Research Staff, British Journal of Dermatology, 33/8-9, 1921, pp. 306 - 307
C.: A Study of the Nature, Growth and Control of Bacteria in Cutting Compounds, Journal of Bacteriology, 1941, pp. 373 - 386

Other studies used either different objective functions (tool wear rate, material removal rate or tool lifetime) or other materials than we used (EN24 alloy steel) [6].
The dt value indicates the depth of material to be removed.
The machining is developed at “Compa” S.A Sibiu from a preform of Steel Material type 1.2581.
Mechanical Engineering Letters, Szent István University, Technical-Scientific Journal of the Mechanical Engineering Faculty. 2 (2009) 139-145
Radovanovic, Using genetic algorithms for optimization of turning machining process, Journal of Engineering Studies and Research. 19 (2013) 47-55

Experimental Procedure Materials and methods. 0.5%, 1%, 2% and 4% molar ratios Ce doped ZnO nano-structures were prepared by hydrothermal technique using Zinc nitrate hexahydrate (Zn(NO3)2•6H2O) as substrate, cerium nitrate hexahydrate (Ce(NO3)2•6H2O) as dopant.
The general morphologies of Ce-doped ZnO nano-materials were analyzed by FESEM.
Wang, et al, Synthesis and characterization of Co-doped ZnO powder and its photocatalytic activity, Journal of Ceramics 38 (2017) 548-552
Koodali, Tuning of the crystallite and particle sizes of ZnOnanocrystalline materials in solvothermal synthesis and their photocatalytic activity for dye degradation, J.
Ibrahim, et al, Highly efficient photocatalyst based on Ce doped ZnO nanorods: Controllable synthesis and enhanced photocatalytic activity, Chemical Engineering Journal 229 (2013) 225-233

Road, Tainan Science-based Industrial Park Hsin-shi, Tainan County, 74147, Taiwan, R.O.C. 3 Department of Materials Engineering, National PingTung University of Science & Technology.
Yamaguchi, Solar Energy Materials & Solar Cells, Vol. 74 (2002), p. 289
Du, Journal of Crystal Growth, Vol. 260 (2004), p. 102
Aberle, Journal of Crystal Growth, Vol. 242 (2002), p. 270
Brown, Materials Letters, Vol. 60 (2006), p.1379

Table 2 Material properties Material variety Poisson's ratio Elastic modulus（MPa） Tensile strength（MPa） Thickness（mm） C30 concrete 0.2 13585 1.43 bar 0.3 2E5 300 CFRP 0.25 2.345E5 3450 0.13 Finite Element Analysis Results Crack Development and Failure Mode Fig.2 shows the cracks development process of four joint models.
References [1] Tsinghua University:Earthquake Damage Investigation and Reconstruction Building Analysis Report(China Architecture &BuildingPress，China 2008) [2] Qiaoling Xian, Chuanliang Jiang ,Fulin Zhou:Journal of Building Structures.28(2007).
In Chinese [6] Yaping Peng,Tiecheng Wang,Yumin Zhang,Yao Xu:Journal of Harbin Institute of Technology. 39(2007),p.1960-1973.
In Chinese [8] Bu Wang, Pu Wang: Sichuan Building Science. 2(2007), p. 113-117.
In Chinese [9] Jianjing Jiang: Nonlinear Finite Element Analysis on Reinforced Concrete Structure(Shaanxi Science and Technology Press ,China 1994)

The C/C composite materials cost not only can be reduced, but also the isotropic products can be prepared by molding process, and the products can be used as friction materials and thermal conductivity materials.
Song et al: Functional Materials, Vol.33, 5(2002), p.473-476
Chi et al: New Carbon Materials, Vol.14, 3(1999), p.36-42
Li et al: Aerospace Materials and Technology, 6(2004), p.11-15
Cao et al: Journal of CUMT, Vol.37, 1(2008), p.57-61

The general theory of coherent radiation for synchrotron and bremsstrahlung radiation, when radiation is generated directly by charged particles, but not by the material of a target, was developed long ago.
However, there is no general model of coherent radiation for such polarization radiation as transition, diffraction and other types of radiation, when the radiation is generated by the material of a target polarized by the electromagnetic field of relativistic particles.
In this paper, we suggest the simplified algorithm for construction of form factors for different types of polarization radiation of relativistic electrons in the material of a target.
Acknowledgements This work was supported by the State Task of Ministry of Education and Science of Russian Federation № 2456 References [1] T.
Flesher, Synchrotron radiation of charges distributed in space, Russian Physics Journal. 36 1 (1993) 18-20 [17]W.

The pH value of bio-oil is very low and contains undesirable solid materials which cause erosion and blocking to the mechanical engines and energy applications [12].
This problem can be mitigated by using more resistant materials such as stainless steels, silicon carbide coatings and fluorinated polyethylene in the engines and turbines.
Bridgwater, submitted to Thermal Science, vol. 8, pp. pp. 21-49, (2004)
Overend, submitted to Journal of Analytical and Applied Pyrolysis, vol. 6, pp. 95-135, (1984)
Fernandez-Akarregi, submitted to Journal of Biobased Materials and Bioenergy, vol. 6, pp. 193-203, (2012)

Effects of Long-term Aging Treatment on Stress Rupture Properties of FGH95 Ni-base Superalloy Sugui Tian1, a, Guangliang Xie1, b, Jun Xie1, c and Xiaoming Zhou2,d 1School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China 2Beijing Institute of Aeronautical Materials, Beijing 100095, China atiansugui2003@163.com, bxie450408111@126.com, cxie1004@yahoo.com.cn Keywords: FGH95 alloy, Long term aging, Microstructure, Stress Rupture Property.
[3] S.G.Tian, Y.Liu, X.M.Zhou, Z.G.Zhao, et al., Creep behaviors of FGH95 powder Ni-base superalloy, Chinese Journal of Aeronautics, 22 (2009) 444-448
[10] J.B.Zhou, D.G.Li, C.X.Cui, Effect of long time aging heat treatment on γ¢ phase shape of nickel-base superalloy, Journal of Mater.
[11] S.W.Guo, Y.S.Zhang, K.F.Tong, et al., Kinetic study on the growth of precipitated γ¢ phase during long time aging in GH4169 superalloy, Journal of Northeastern University, 24(2003) 576-579
[12] J.B.Zhou, C.X.Cui, D.G.Li, Carbide precipitating behavior of Ni-based superalloy by long time aging heat treatment, Material and Heat Treatment, 35 (2006) 33-37

As the heat-treated materials traveling between a feed roll and wind-up roll or materials manufactured by extrusion, cooling of metallic sheets or electronic chips, glass-fiber and paper production.
Ismail, MHD boundary layer flow and heat transfer of nanofluids over a nonlinear stretching sheet: A numerical study, J. of Magnetism and Magnetic Materials, 374(2015) 569-576
Wongwises, Experimental and numerical investigation of nanofluids heat transfer characteristics for application in solar heat exchangers, International Journal of Heat and Mass Transfer, 92 (2016) 1041-1052
Shehzad, Magnetohydrodynamic nanofluid convection in a porous enclosure considering heat flux boundary condition, International Journal of Heat and Mass Transfer, 106 (2017) 1261-1269
Proulx, Modeling of convective turbulent heat transfer of water-based Al2O3 nanofluids in an uniformly heated pipe, Che Engg Science, 176 (2018) 205-219