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Abstract: Polyimide is often used as a sacrificial layer material to make floating structure.
Introduction Bi-material microcantilever arrays based on optical readout infrared thermal deformation imaging technology[1].
Production of infrared focal plane array FPA (Focal Plane Array) which consists of bi-material micro-cantilever structure is the core technology of the whole system.
Polyimide is a high molecular material with heat resistance, corrosion resistance, good chemical stability, etc.
S., Preparation and characterization of polyimide/mesoporous silica hybrid nanocomposites based on water-soluble poly(amic acid) ammonium salt, European Polymer Journal, 2009, 45(1): 19-29.

With the promising development of graphene-based polymer composites on a nano-scale, a nanohybrid material, which combine the properties with the unique features of graphene oxide and polymer materials, could be formed [10].
Experiment Materials and Reagents Graphene oxide (GO) solution was synthesized from an acid treated graphite (SIGMA 282863-25G) using the modified Hummer’s method.
Abdiyss, "Preparation and characterization of high efficiency ion-exchange crosslinked acrylic fibers.," Journal of Applied Polymer Science, 2006
Han, "Ultrathin Graphene Nanofiltration Membrane for Water Purification," Advanced Functional Materials, vol. 23, no. 29, pp. 3693-3700, 2013
Gao, "Filtration and transport of heavy metals in graphene oxide enabled sand columns," Chemical Engineering Journal, 2014

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)

F. 3 Russian Academy of Science, Institute of Metallurgy, Leninsky Prozpekt 49, Moscow, Russian Federation.
There, the optical - elastic constant of the material 01 is experimentally determined by submitting the zone where the pure flexion conditions are fulfilled for a piece of optically active material to a flexion in four points with aid of the following relationship: max 1 2 0 2 K m Cd            (4) Where: K - stress in the analyzed contour; m - value of the length wave number that applies in the difference of the two polarized light components' path; 0C - optical constant of the material; d - model thickness;- wave length of the polarized light used.
Coefficient 0 od Cd     - optical-elastic constant of the material.
RLMM, LatinAmerican Journal of Metallurgy and Materials, (2009), V.29.
Utkin: Journal of Applied Mechanics and Technical Physics 50 (2009), p. 99.

Therefore, the plasmid profiles can provide basic materials for epidemiological investigation on chicken Escherichia coli at molecular level. 1.
Materials and Methods 2.1 Strains A total of 38 strains of chicken E. coli were isolated from dead or sick chickens in large-scale chicken farms in Baoding City (13 strains respectively numbered BD1, BD2, BD3…BD13), Qinhuangdao City (13 strains respectively numbered QHD1, QHD2, QHD3…QHD13) and Beijing City (12 strains respectively numbered BJ1, BJ2, BJ3…BJ13).
Cheng: Journal of Sichuan Agricultural University, Vol. 8-3(1990), p.229 [6] S.
Li: Journl of Guangxi Agricultural and Biological Science, Vol. 12-4(1993),p.79 [7] Y.

ZHU1, a (1State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing 210008, China) axbzhu@163.com Key words: ITZ; Toughness; Numerical simulation; Concrete; Styrene-acrylic emulsion; Fracture energy Abstract.
Besides, the chemical bonds in concrete are mainly covalent bond and ionic bond, whose bond energy is very high and with definite directionality as well, resulting concrete materials can store large amount of potential energy even with small deformation.
Material Models.
References [1] CHEN Hui-su, SUN Wei, Stroeven Piet: Journal of Building Materials Vol.8 (2005), p. 51 [2] MINDESS S.
(Materials Research Society, Pittsburgh 1988) [3] Victor C.