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All powder materials were synthesized using a sol-gel method.
All the powder materials were synthesized using a sol-gel method as previously reported by our research group [8-10].
Traversa, Materials challenges toward proton-conducting oxide fuel cells: a critical review.
ACS applied materials & interfaces, 2016. 8(14): p. 9097-9103
Journal of Sol-Gel Science and Technology, 2016. 80(2): p. 259-266.

Roberto Frias, s/n; 4200-465 Porto, Portugal abarreira@fe.up.pt, bsarafreitas@fe.up.pt, cvpfreita@fe.up.pt, djdelgado@fe.up.pt Keywords: Micro-Cracks, Infrared Thermography, Building Materials, Façades.
However, there are still some applications which are not yet completely explored like the detection of micro-cracks on façade coating materials.
Most material pathologies are related with temperature action.
Despite this studied applications there are still some potentialities for this technology, especially to façades, which are not yet completely explored, such as, the detection of degradation on coating materials in façades – especially micro-cracks.
Rao: The Indian Concrete Journal Vol. 85 (2008), p. 41 [9] C.

Journal of hunan university, 2008,8 (8): 55-58
The integration of nanoscale porous silicon light emitters: materials science, properties, and integration with electronic circuitry [J].
Journal of Luminescence. 2009, 80(1-4): 53–64
Material Science & Processing, Appl.A, [J].2004:(2): 279-292
Journal of functional materials and devices,[J].2002.8(3):293-296 [10] Hong, M.H., Park, C.S., Seo, W.S., Lim, Y.S., Lee, J.K. and Park, H.H. (2013) Thermoelectric properties of Al-doped mesoporous ZnO thin films.

Along with the research, fractal theory has been widely applied on physics,chemistry,biology, astronomy, material science, computer graphics, economics and Philosophy and so on[2-6].
Building Science Vol. 21(5) (2005), p.21-25
Polymer Materials Science and Engineering Vol. 23(6)(2007),p. 113-116
Journal of China University of Mining & Technology Vol. 33(1) (2004), p.19-25
Journal of China University of Mining & Technology Vol. 35(4) (2006), p.478-482

The braking force between the brake disc and the brake pad is equal to the tension of controlled material at that time.
When the disturbance tension increases, the controlled material holds up the adjustment wheel.
It results in that the speed of material reel unwinding turns faster, and the tension is reduced.
Journal of Zhejiang Institute of Science and Technology. 17(2000) 99-102
Journal of Hebei University of Science and Technology. 25(2004) 51-54

Displacement load and boundary condition are applied to these laminates expressed as follows: （6） Materials properties of M40J/Ag80 unidirectional laminate are shown in Table 2.
Table 2 Materials properties of M40J/Ag80 unidirectional laminate Elastic constant Value Strength Value 21000MPa 1310MPa 8400MPa 1020MPa 4780MPa 22.9MPa 3280MPa 132MPa 0.3 58.3MPa 0.28 20MPa Simulation results analysis.
Engblom: Composites Science and Technology Vol.28(1987),p. 87~102 [4] Z.
Hashin: ASME Journal of Applied Mechanics Vol.47(1980),p. 329~334P
Gerald: International Journal of Damage Mechanics Vol.3(1994): 194~211 [7] F.

Such robot will use compliance of the material in order to handle soft materials or move in a very limited space and change gaits more easily.
The use of rigid materials for structural elements and actuators will limit the ability of the robot to adapt to the surrounding environment.
In recent years, the soft materials have been attempted for various applications like rehabilitation, prosthetic arm/hand, medical robotics etc.
Elango et al. [4] investigated different soft materials for their suitability in soft robot fingers.
[5] Dipayon Roy, Nicholas Weltels, Gerald E.Loeb: Journal of Applied Polymer Science, Vol. 127 (2013), pp. 4624-4633

is the pressure between wheel and arresting material.
The pressure will be different if contact material is different.
Science and Technology about Safe Production of China, 2012, 8(7):127-132
Runway Safety Areas Engineered Materials Arresting Systems[R]. 2005
Journal of Civil Aviation University of China, 2009,27(2):10-13

Kimoto, Materials Science and Engeneering R 20, 125 (1997). ].
Capano, Journal of Applied Physics 98, 114907 (2005). ].
Kimoto, Journal of Applied Physics, 75, 850 (1994). ].
Crippa, Materials Science Forum Vols. 740-742, 229 (2013). ] to reduce the step-bunching of the surface.
Acknowledgements This work was partially supported from ENIAC JOINT UNDERTAKING SUB-PROGRAMME SP8 – Equipment & Materials for Nanoelectronics ENIAC JU-2009-1 - LASTPOWER Project.

The porous materials are more and more popular throughout the world.
However most of the resent researches focus on the porous materials applying to horizontal plane.
Building Science, 2012, 28(2): 42-45.
Journal of Harbin Institute of Technology, 2006, 13(Sup): 53-56
New Building materials, 2011, (7): 30-33,37.