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Synthesis And Characterization of Bioactive Sol – Gel Glass: A Preliminary Study Dan Nicolae Ungureanu1, a, Nicolae Angelescu1, b, Adrian Catangiu1, c, Elena Valentina Stoian1, d, Cristiana Zizi Rizescu1, e, Daniela Avram1, f Department of Materials Engineering, Mechatronics and Robotics,Valahia University fromTargoviste, Bd.
In the last decade interest regarding these materials was increased steadily.
It was found that the bioactivity of sol–gel derived bioactive glass is better than that of the melt-derived material [2, 3].
Doostmohammadi, Bioactive Glass Nanopowder for the Treatment of Oral Bone Defects, Journal of Dentistry, Tehran University of Medical Sciences Vol. 4 (2007), p.115.

For a certain wavelength of the sun radiation, the infrared emission from the material surface is proportional to the absorbed energy.
Materials and Methods Commercially pure aluminum sheets with 0.5 mm of thickness supplied by Alcoa, Brazil, were used as substrates for the distinct selective copper oxide coating layers.
Novas: Journal of Cleaner Production Vol. 148 (2017), p. 545
Callister, D.G Rethwisch: Materials Science and Engineering: An Introduction.

Hybrid processes can be very easy to handle and very efficient to grow nanostructured materials.
Conclusion The complexity of the materials deposited by hybrid processes can be regarded as an advantage since we wish to create new materials with original structures and properties.
Then, we are far from being able to describe thoroughly these processes despite materials with new properties can be grown in thin film.
Brunold: Solar Energy Materials and Solar Cells Vol. 69 (2001) p. 271-284 [15] Y.
Belmonte: accepted in Applied Surface Science

The most common photoconductive materials are Si and GaAs., and are generally intrinsic and semi-insulated with high electrical resistivity above 10 4/Ωcm for Si and 107/Ωcm for GaAs.
The switcher’s state converts from blocking to conducting, which finished in the range of picosecond even subpicosecond in connection with materials’ property parameters, pulse wavelength, pulse width, pulse power, etc.
Improved characteristics of a terahertz set-up built with an emitter and a detector made on proton-bombarded GaAs photoconductive materials.
Semiconductor Science and Technology, 2006, 21(3):283-293
Journal of Applied Physics, 2001,90(12): 5915 - 5923 [11] Naftaly, Mira; Miles, Robert E.

It must also be noted that elemental determination of the compounds was restricted by the limited materials data base available to the Highscope software.
Joens, A Comparison of Techniques for Processing Powder Metal Injection Molded 17-4 PH Materials. 2008
German, R., Conceptual Optimization of Titanium Powder Injection Molding, in Advances in Powder Metallurgy & Particulate Materials, M.
Critical Reviews in Solid State and Materials Sciences, 2010. 35: p. 43
Journal of Applied Physics, 1965. 36(2): p. 462-468

Analytical model The analytical model based on material is usually fiber section model.
The accuracy of a fiber section model is almost entirely depended on the ability of constitutive material models to represent the overall inelastic behavior of the member.
Acknowledgements This work was financially supported by Basic Scientific Research Business Expenses of Gansu Higher Education and Gansu Construction Science and Technology Key Project (JK2009-22).
Wang: China Civil Engineering Journal.
Mohle: Journal of Structural Engineering.

Multi-ribbed composite wall structure system proposed by Xi' an University of Architecture and Technology has ecological and shock absorption features, adapts to China's national conditions, meets requirements on energy-saving and wall materials innovation.
Table 1 Basic parameter of test specimen Specimen Identifier Influence factors Section width b(mm) FD-11 Section width of frame beam and column 70 FD-12 50 FD-13 40 IFD-11 Infilled material strength and elasticity modulus of frame beam and column section 80 IFD-12 70 IFD-13 60 IFD-14 50 IFD-15 40 The production process of FD series is: reinforcement banding assembling formwork pouring concrete.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50878021 and 50908188).
Later Stiffness of Infilled Frames, Journal of the Structural Division, ASCE, December , 1962, pp.183-199 [2] Roger D.
Bennett: In-Plane Behavior of Structural Clay Tile Infilled Frames, Journal of Structural Engineering, June 1999，pp.590-599 [3] Yue YF.(2004).

For a design of heat exchangers the factor such as heat transfer coefficient, friction, and pressure drop, temperature withstanding ability, material selection, flow analysis, thermal analysis and many more parameters has to be considered.
Conference on Modeling, Optimization and Computing, Procedia Engineering 38 (2012) 685-690 [3] R.Pachaiyappan, R.Gopinath, Dr.S.Gopalkannan, Processing Techniques of a Silicon Carbide Heat Exchanger and Its Capable Properties- A Review, Applied Mechanics and Materials Vol. 787 (2015) pp 513-517 [4] I.Kocioglu, Ahmet Cansiz, Mansour Nasiri Khalaji, Experimental investigation for optimization of design parameters in a rectangular duct with plate-fin heat exchanger by Taguchi method, Applied Thermal Engineering 50 (2013) 604-613 [5] J.M.Reneaume, Optimization of plate fin heat exchangers-a continuous formulation, Institution of Chemical Engineers Trans IChemE, Vol 78, Part A, September 2000 [6] Bayram Sahin, A Taguchi approach for determination of optimum design parameters for a heat exchanger having circular-cross sectional pin fins, Heat Mass Transfer (2007) 43:493–502 [7] Seong Won Hwang, Dong Hwan Kim, June Kee Min and Ji Hwan Jeong1(2012), “CFD analysis of fin tube heat exchanger
with a pair of delta winglet vortex generators”, Journal of Mechanical Science and Technology Vol. 26 (9), pp 2949-2958 [8] Takeuchi Y, Park C, Noborio K, Yamamoto Y, konishi S “ Heat transfer in SiC compact heat exchanger”, Fusion engineering and designs, vol. 85 (2010) pp 1266-1270 [9] Jainender Dewatwal Design of compact plate-fin heat exchanger a thesis NIT Rourrkela [10] Chi-Chuan Wang, Kuan-Yu Chi (2000), “Heat transfer and friction characteristics of plain fin-and-tube heat exchangers, part I: new experimental data”, Int.
Heat and Fluid Flow 18: 530-537, 1997 [13] Jiin-Yuh Jang, Ling-Fang Hsu, Jin-Sheng Leu, Optimization of the span angle and location of vortex generators in a plate-fin and tube heat exchanger, International Journal of Heat and Mass Transfer 67 (2013) 432–444 [14] Jiangfeng Guo, Xiulan Huai, Optimization design of heat exchanger in an irreversible regenerative Brayton cycle system, Applied Thermal Engineering 58 (2013) 77-84.

Experimental Procedures Material Used.
Angel: Journal of Iron and Steel Institute, Vol. 177 (1954), p. 165
Shimizu: International Journal of Applied Electromagnetics and Mechanics, Vol. 15 (2002), p. 309
Iwasaki: Proc. of IUTAM Symposium on Mesoscopic Dynamics of Fracture Process and Materials Strength (H.
Nakasone: Proc. of International Conference on Computational & Experimental Engineering and Sciences (2005), p. 1434

Meanwhile, SKD-11 (JIS) (90 x 60 mm and 10 mm) with 55HRC hardness was used as the workpiece material.
A jig was prepared help set and clamp the workpiece material during drilling operations.
This is related to the heat generated on the drill, dynamic behavior, and material removal rate that occurred during drilling operation [4, 6].
Del Toro, A classic solution for the control of a high-performance drilling process, International Journal of Machine Tools and Manufacture. 47 (15) (2007) 2290-2297
Mohamad, Surface roughness optimization in drilling process using Response Surface Method (RSM), Journal Technology (Sciences & Engineering). 66:3 (2014) 29–35.