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GNR/Z composite powder produced by mechanical grinding is porous, like an aggregated chain structure.
Ghosh et al. [8-10] studied the effects of grinding on the particle size distribution and structure of powders obtained from waste rubber as well as the effects of different powders on the physical properties of rubber vulcanizates.
Improvement in physical properties can be attained by reduction of particle size of the powder and modification of particle surface chemistry to make it compatible with the material matrix.
Fig. 1a shows the GNR/Z composite powder to be porous, like an aggregated chain structure wherein the aggregates exist in clusters of irregular shape.
Future studies should focus on the modification of GNR/Z composite powder surface chemistry to make it compatible with the material matrix.

Leak before break(LBB) is an important analysis method for insuring the structure safety and reliability of nuclear reactor.
Introduction To guarantee reliability of structure, double-ended guillotine break(DEGB) of head conduit is usually regarded as design standard accident before 80s of last century[1].
Using LBB in the design of conduit and pressure vessel can not only ensure reactor security but also leave out some unnecessary establishment which can simplify reactor structure and reduce constructing expenses[4].
Journal of Physics and Chemistry of Solids, Vol(61),2000,p,1895
Molecular Dynamics Modeling of the Interface between Surface Functionalized Graphitic Structures and Calcium–Silicate–Hydrate: Interaction Energies, Structure, and Dynamics.

The structures, morphology of the thin films were characterized by X-ray diffraction and field emission scanning electron microscope, respectively.
The (006)-oriented thin film corresponds to the rhombohedral crystal structure of Bi2Te3 and Bi2Se3.
It indicates that the thin films have the same structure as that of the bulk Bi2(Te0.95Se0.05)3 alloy.
Semiconductor compounds of Bi2Te3 and Bi2Se3 have rhombohedral crystal structure and antistructure defects.
Foucaran: Materials Chemistry and Physics Vol. 62 (2000), p. 179 [7] Feng Xiao, Carlos Hangarter, Bongyoung Yoo, Youngwoo Rheem, Kyu-Hwan Lee and Nosang V.

All calcined ZnO powders exhibited a hexagonal wurtzite structure.
The crystalline structure of the samples was observed using X-ray powder diffraction method (XRD, X’Pert, MPD, Philips) with CuKa radiation.
Fig. 1 XRD patterns of ZnO powders prepared at different Rs All calcined ZnO powders exhibited a hexagonal wurtzite structure (JCPDS 36-1451) without any secondary phase.
This is because of the difference in their cell wall structures [3].
The ZnO powders calcined at 600oC in air for 1 h exhibited a hexagonal wurtzite structure with a high crystallinity.

In contrast, crystals in ionized water had smooth surfaces and grew in layered structures.
At higher levels of dilution, crystals grown in both distilled and ionized water developed from crystallites into a single-body structure and approached the higher energy form of straight edge hexagonals.
[2] Chaplin, Martin (2013), Hydrogen Bonding in Water, Water Structure and Science, London South Bank University
[3] Chaplin, Martin (2013), The Icosahedral (H2O)280 Water Clusters , Water Structure and Science , London South Bank University
Ives (2007), The silica hypothesis for homeopathy, physical chemistry

Thin-film diode structure is MgAl/PbPc/Cu if lead phthalocyanine is taken as organic semiconductor gas-sensing material with methods such as vacuum thermal evaporation or magnetron sputtering.
Phthalocyanine complexes have the characteristics of big ring conjugate structure [7].
Device Structure and Fabrication The thin-film diode in this article is consisted of MgAl/PbPc/Cu, the structure is shown in figure 1.
Using OLED multiple coating system to make vertical structure MgAl/PbPc/Cu organic thin-film diode, Cu and MgAl using magnetron sputtering deposition, sputtering time is about 20 seconds.
Gas absorbed by PbPc can be divided into oxidizing gases (like O2 or Cl2) and reducing gases (like NH3 or CO) when considered in chemistry theoretical knowledge of oxidation reduction view, oxidizing gases is called electron acceptor, reducing gases is electron donor.

They are characterized by framework structures with uniform pore and channel systems.
The excess oxygen in the alumina molecules gives the framework of a negative charge which can balance by trapping positively charged ions (cations) in cages of the structure [1 – 2].
Moreover, zeolite also can be known as micro porous crystalline solids with well structure from a large family of aluminosilicates which have been studied by mineralogists for more than 200 years [3].
Lastly, this commercial synthetic zeolite have a crystalline structure well with the phase name are known already and have nine major peaks of 2θ.
[9] MahdiFathizadeh, AbdolrezaAroujalian, synthesis and characterization of nano particle crystal of NaX zeolite, International Journal of Industrial Chemistry. 2 (2011) pp. 140 – 143

The structure-property relationship in oxide glasses: a thermodynamic approach Natalia M.
Wright2,c 1 Institute of Silicate Chemistry of the Russian Academy of Sciences, Nab.
a natalia@isc.nw.ru, bbashakhm@isc.nw.ru, ca.c.wright@reading.ac.uk Keywords: oxide glasses, thermodynamic modelling, chemical structure, structure-property relationship Abstract.
The experimentally observed changes in the structure of sodium silicate glasses shown in Fig. 2b can also be explained using the concept of the chemical structure.
Hence, the concept of the chemical structure of glasses also enables the intermediate-range order in their structure to be described.

Structure Characterization of Polymer/ Oriented Graphite Nanosheet Composite by Electric Field-Inducement * Hongyan Zhang and Haiquan Wang Chemistry and Chemical Engineering College Weifang University, Weifang, Shandong Province, China island_maritime@hotmail.com Keywords: Polymer composites; Graphite nanosheet; Electric field-induced orientation; Nanocomposites.
Fig.3(b) and Fig.4(c) shows the structures of horizontally orientated graphite flakes and many dotted lines, respectively, which demonstrates the orientation of graphite flakes through polarization.

Development of Multisubstituted Apatites for Bone Reconstruction Elena Landi1,a , Simone Sprio1,b , Monica Sandri 1,c , Anna Tampieri1,d , Luca Bertinetti2e , Gianmario Martra 2,f 1 Institute of Science and Technology for Ceramics, ISTEC-CNR, via Granarolo 64, 48018 Faenza Italy 2 Department of Chemistry IFM and NIS Center of Excellence, University of Turin, Via P.
The entering of silicon in the HA structure progressively reduces its crystallinity, as also carbonate ions do.
Silicate and carbonate ions can enter simultaneously into the HA structure, in biological-like amounts, although they compete for the occupation of the phosphate site.
The powder crystallinity strongly decreases when Si enters into the structure: the peaks sharpness decreases with increasing silicon amounts and the peaks are less resolved.
The FTIR spectra of the Si-multisubstituted powder show the typical signals related to the PO4 modes, structural OH, H2O and B-CO3; two additional bands are also detected, in the range 490-505 and 890-895 cm-1, whose occurrence should be ascribed to modifications of the apatite structure induced by Si [6].