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Hygric Properties of HPC with Natural Pozzolana KOŤÁTKOVÁ Jaroslava1,a *, ČÁCHOVÁ Monika2,b, KOŇÁKOVÁ Dana2,c, VEJMELKOVÁ Eva2,d 1Czech Technical University in Prague, Faculty of Civil Engineering, Experimental Centre, Thakurova 7, 166 26, Praha 6 Dejvice, Czech Republic 2Czech Technical University in Prague, Faculty of Civil Engineering, Department of Materials Engineering and Chemistry, Thákurova 7, 166 29 Prague 6, Czech Republic ajaroslava.kotakova@fsv.cvut.cz, bmonika.cachova@fsv.cvut.cz, cdana.konakova@fsv.cvut.cz deva.vejmelkova@fsv.cvut.cz Keywords: High-performance concrete, natural zeolite, open porosity, water vapour diffusion coefficient, water vapour diffusion resistance factor, absorption coefficient.
Permeable material enable the water or the moisture, which can also be the bearers of other harmful substances, to get deeply inside its structure.

Ene Institute of Physical Chemistry "Ilie Murgulescu" of Romanian Academy, Splaiul Independentei 202, sector 6, Bucharest, Romania iuliab40@yahoo.com Keywords: vitroceramic composition, surface preparation, biovitroceramic coatings on titanium, microhardness tests.
A gradual change thus takes place from the metal surface to the vitroceramic structure.

There are many sharpening methods such as lapping, ion beam sputtering, thermal chemistry polishing, plasma polishing, oxide etching and laser erosion, etc.
To simulate the lapping process under room-temperature conditions, the diamond atoms were arranged in a perfect diamond cubic structure with the lattice parameters equal to their equilibrium values at an ambient temperature of 293K.

It is accepted that the combination of two different band structure semiconductors could promote the photoinduced electrons-holes separation, which would lead to a great increase of the photocatalytic activity [7-9].
L561 [7] H.Cui, K.Dwight, S.Soled, A.Wold, J.Solid State Chemistry.

Cholesterol-imprinted Receptor Using Chitosan Derivative as the Precursor Huaimin Guan1,2, a, Yuejin Tong 2,3*, b, Jinhua Zheng3,c and Xiang Li3,d 1 College of Materials Science and Engineering, Fujian Normal University, Fuzhou 350007, China 2 Fujian Key Laboratory of Polymer Materials, Fuzhou 350007, China 3 College of Chemistry and Chemical Engineering, Fujian Normal University, Fuzhou 350007, China a Email: guanhmt@yahoo.com.cn, b Email: tongyuejin@yahoo.com.cn, c Email: 563269234@qq.com, d Email: 495827427@qq.com * Correspondence to: Yuejin Tong; e-mail: tongyuejin@yahoo.com.cn Keywords: Molecular imprinting, O-Acyl chitosan, Cholesterol receptor, Hydrogen-bonding formation Abstract.
On the other hand, biological macromolecules such as polysaccharides are unique in terms of their well-defined molecular structure and functional groups along their macromolecular chains, which can be utilized for both covalent and non-covalent interactions.

HLC, expressed by recombinant Escherichia coli BL21 containing human-like collagen cDNA, is water-soluble and has a tri-helix structure [1].The advantages of HLC such as low immunogenicity, easily modifiable and no virus risk have made it to be a novel biomedical material used as hemostatic material, a novel scaffolding biomaterial for artificial bones, skin tissues and vascular tissues etc. [2].
[6] Fan, D.D., Duan, M.R., Mi, Y., Song, J.R., Xi, J.F., Wang, D.W., Wang, G.Z., Journal of Industrial and Engineering Chemistry (China), Vol .53(2002), p.752-754, (In Chinese)

Introduction The steel type and chemistry are important for extending the lifetime of steel structures [1].

Effects of Electrical Characters on Electrical Fatigue Behavior in PLZT Ferroelectric Ceramics Zhiwu Chen 1, Zhenya Lu 1, Xuming Chen 1, Ying Zhang 2 and Xuan Cheng 3 1 Collage of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China 2 Department of Materials Science and Engineering, Xiamen University, Xiamen 361005, China 3 Department of Chemistry, Xiamen University, Xiamen 361005, China Keywords: Electrical characters, Electrical fatigue, Ferroelectric ceramics.
The samples were identified as a tetragonal perovskite structure via X-ray diffraction.

PLGA (polylactide/polyglycolide =4: 1) was a gift from Chemistry Institute, Chengdu branch of Chinese Science Institute, in which pores diameters range from 200 to 250μm, porosity were over 90%, percentage of open area were 98-99%.
BMSCs/HA/TCP group at 8 th week: Most of the dense fiber connective tissue had calcified into laminate bone, some parts of new formed bone had bone marrow structure.

The adsorption capacity of inorganic materials is related to its surface area, pore structure and surface chemistry.