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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.

Upon entering the narrow pores, the raw material experiences the resistance of diffusion, which restricts the access of the reagents to the interior of the grain.
W., Multi-scale catalyst design, Chemical Engineering Science, 2007, 62, 3502 [9] Bensetiti, Z., Schweich, D. and Abreu, C.A.M., The sensitivity of the catalyst effectiveness factor to pore size distribution, Braz.
C. and Iglesia, E., Monte Carlo simulations of surface and gas phase diffusion in complex porous structure, Chemical Engineering Science, 2003, 58, 4605 [12] Haynes, H.
Eng., 1988, 30[4], 563 [13] Koci, P., Stepanek, F., Kobicek, M. and Marek, M., Modelling of micro/nano-scale concentration and temperature gradients in porous supported catalysts, Chemical Engineering Science, 2007, 62, 5380 [14] Szczygiel J., Diffusion and kinetics of reaction over bidispersive reforming catalyst, Computers and Chemistry, 2000, 24, 203 [15] Szczygiel, J., Diffusion in bidispersive grain of a reforming catalyst, Computers and Chemistry, 1999, 23[2], 121 [16] Szczygiel, J., Enhancement of reforming efficiency by optimizing porous structure of reforming catalyst: Theoretical consideration, Fuel, 2006, 85[10], 1579 [17] Sahin, E., Dogu, T. and Mortezaoglu, K., Thermal effects on effectiveness of catalyst having bidisperse pore size distributions, Chemical Engineering Journal, 2003, 93[2], 143 [18] Gheorghiu, S. and Coppens, M.
O., Optimal bimodal pore network for heterogeneous catalysis, AIChE, Journal, 2004, 50[4], 812 [19] Parachayawarakorn, S., Prakotmak, P. and Soponronnarit, S., Effects of pore size distribution and pore-architecture assembly on drying characteristics of pore networks, International Journal of Heat and Mass Transfer, 2008, 51[1-2], 344 Key to Symbols R = gas constant T = temperature M = molecular weight dp = pore diameter Dkn = Knudsen diffusivity coefficient Knd = Knudsen number KB = Boltzmann constant P = pressure Dm = molecular diffusivity coefficient Dtr(r) = transitional diffusion coefficient Deff = effective diffusivity coefficient Ds = diffusivity coefficient of a single pore D * = diffusivity for a group of pores Dws = Wakao-Smith diffusivity coefficient DM = macropore diffusivity coefficient Dµ = micropore diffusivity coefficient r = pore radius f(r) = normal pore size distribution f(β) = constriction factor fb(r)

In order to manufacture a workpiece fulfilling specified requirements with the lowest possible weight, it is crucial to be able to work with a variety of materials and to combine them accordingly.
The production of profiles based on hybrid materials demonstrates such an approach.
Therefore, the material flow plays an important role.
Sonderband 37, 2005, pp. 131-136 [8] Kleiner, M.; Schomäcker, M.; Schikorra, M.; Klaus, A.: Herstellung verbundverstärkter Aluminiumprofile für ultraleichte Tragwerke durch Strangpressen, Materialwissenschaft und Werkstofftechnik 35 No.7, 2004, pp. 431-439 [9] Tillmann, W.; Vogli, E; Weidenmann, K.; Fleck, C.: Reinforced lightweight composite materials.
Materials Science and Technology, Vol. 19, July 2003, pp. 837-846

A number of different piezoelectric materials exist in numerous forms, either naturally occurring such as single crystal quartz, or synthesised materials such as man-made piezoceramics (e.g. lead zirconate titanate (PZT)).
Selection of the most appropriate material for a particular application depends not only on power output and efficiency, but consideration of the costs of both raw materials and manufacturing process.
This has led to the popularity of piezoceramic materials which are used in this work as these prove less challenging and expensive to synthesis compared to alternative, higher power density piezo-materials [6].
Inman, Comparison of piezoelectric energy harvesting devices for recharging batteries, Journal of Intelligent Material Systems and Structures, 16 (2005) 799-807
Greaves, Harvesting vibration energy for structural health monitoring in aircraft, Key Engineering Materials , 413-414 (2009) 439-446.

Some Aspects about Adsorption of Polymer on Cement Grain Shiyun ZHONG1,a, Dongdong HAN2,b and Jinmei LI3,c 1Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China 2School of Materials Science and Engineering, Tongji University, Shanghai 201804, China 3Sinoma Research Institute, Sinoma International Engineering Co.
For example polycarboxylate ether-based superplasticizers (PCEs, negative charged) are strongly adsorbed by positively charged materials while poorly adsorbed by negatively charged materials [8].
Noticed that negative charged PCEs will be also, though poorly, adsorbed negatively charged materials [8], and again the poly(ethylene-co-vinyl acetate) (EVA) particles are obviously deposit on the C3S surface at first minutes after mixing as observed under soft X-ray microscopy [11], although both EVA particle and C3S grain are believed to have negative charge.
Materials Research Society Symposium Proceedings, 289(1993) 199-204
Plank, Interaction of cement model systems with superplasticizers investigated by atomic force microscopy, zeta potential, and adsorption measurements, Journal of Colloid and Interface Science 347 (2010) 15–24

Citation & Copyright (to be inserted by the publisher ) Dynamic Damage Behavior During Cooling Process of Ceramic Coatings Satoshi Nishinoiri1, Kei Nozawa1 and Manabu Enoki1 1 Department of Materials Engineering, The University Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
The material loses its thermal barrier function when the delamination of the coating layer occurs.
Also, it is difficult to evaluate the energy release rate analytically when the crack exists between two different materials.
Journal Title and Volume Number (to be inserted by the publisher) about 30-300 µm were detected until the delamination of coating.
Acknowledgement The present research is supported in part by a Grant for 21st Century COE Program “Human-Friendly Materials based on Chemistry” from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.

Materials Residual stress measurements were performed on a fractured four-point bending fatigue sample.
Tarrant, Influence of heat treatment processes on fatigue performance of particle reinforced aluminium alloys, Materials Science and Technology. 18 (2002) 1453-1457
Part 1 - Measurement techniques, Materials Science and Technology. 17 (2001) 355-365
Prime, Cross-sectional mapping of residual stresses by measuring the surface contour after a cut, Journal of Engineering Materials and Technology. 123 (2001) 162-168
Standard test method for plane-strain fracture toughness of metallic materials, in: 1991 Annual Book of ASTM Standards , pp. 485-51

Effect of Valley Beater Refining on Tensile Properties of Molded Pulps from Rice Straws Ruethaichanok Prasertpong1,a, Phattharasaya Rattanawongkun1,2,b, Nattaya Tawichai1,2,c, Uraiwan Intatha1,2,d and Nattakan Soykeabkaew1,2,e* 1School of Science, Mae Fah Luang University, 333 M.1 Thasud, 57100, Thailand 2Center of Innovative Materials for Sustainability (iMatS), Mae Fah Luang University, 333 M.1 Thasud, 57100, Thailand a6031112013@lamduan.mfu.ac.th, bphattharasaya.rat12@lamduan.mfu.ac.th, cnattaya.taw@mfu.ac.th, duraiwan.int@mfu.ac.th, e*nattakan@mfu.ac.th Keywords: Freeness, Refining, Rice straw, Molded pulp, Tensile properties, Valley beater Abstract.
Experimental Materials.
Moreover, other abundant local agricultural wastes such as banana stem and pineapple leaf were also intent to investigate as raw materials for pulp extraction and then refine to optimize properties of each pulp.
Acknowledgement The authors would like to thank for the financial support from the internal Global Challenge Research Fund (GCRF), Queen Mary University of London, UK and Center of Innovative Materials for Sustainability (iMatS), Mae Fah Luang University (MFU), Thailand.
Somboon: Kasetsart Journal–Natural Science Vol. 45 (2011), p. 883-890

Among the materials for PENGs, ZnO shows exceptional piezoelectric properties because of its asymmetric polar crystal structures and easy fabrication on desired substrate.
Materials and Methods Materials Zinc acetate dihydrate (Zn(CH3COO)2.2H2O), zinc nitrate hexahydrate (Zn(NO3)2.6H2O), hexamethylenetetramine ((CH2)6N4), ethanol and acetone were all of analytical reagent grade and purchased from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China).
Palneedi, Comprehensive biocompatibility of nontoxic and high-output flexible energy harvester using lead-free piezoceramic thin film, APL Materials 5 (2017) 074102
Ryu, Research Update: Nanogenerators for self-powered autonomous wireless sensors, APL Materials 5 (2017) 073803
Song, Piezoelectric nanogenerators based on zinc oxide nanowire arrays, Science. 5771 (2006) 242-246