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Aizawa1, a 1 Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, Japan 2 The Cambridge Centre for Medical Materials, Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, CB2 3QZ, United Kingdom a mamorua@isc.meiji.ac.jp Keywords: Hydroxyapatite, Apatite fiber, Silicon-containing apatite fiber, Homogeneous precipitation method, Scaffold, In vitro evaluation, Dissolution test Abstract.
The effect of Si substitution on the crystal structure of HAp was examined by determining the lattice constants.
It can be deduced that Si is incorporated in the HAp crystal structure from the lattice constant variation of 0.8Si-AFS.
The present good cell proliferation results may be due to the 3D structure of the AFS1000 and 0.8Si-AFS1000.

Phosphotungstic acid (PTA), which is a kind of polyoxometalates that consists of heteropolyanions PW12O403- with W-O octahedra as the basic structure unit, has received largely attentions in the past decades[2].
This unique structure exhibits extremely high proton mobility, while PW12O403- can stabilize cationic organic intermediates.
This study focused on the prototypical structure, namely ZIF-8, whose secondary building units are Zn6(MIM)6 and Zn4(MIM)4 rings, and each Zn(Ⅱ) ion is tetrahedrally coordinated by four nitrogen atoms from bridging MIM to furnish an infinite 3D frameworks[6].
Van Tendeloo, Journal of Materials Chemistry, 21 (2011) 1226

Meanwhile, the Table 1 shows clearly that the specific heat capacity of alloy sample declines slowly with the thermal cycle times increasing, but the decline range is small, due to the homogenization of alloy structure gradually, the increase of eutectic composition and the decrease of segregation, dislocation and vacancy, etc. defect in the process of cycle.
At the same time, the downward trend decreases gradually, this may be due to the decrease of disordering of the alloy structure and the decrease of the amount of defect with the cycle continuing.
But the crystal grain becomes thick and big, dendritic crystal and eutectic structure becomes distinct and the grain boundary amount decreases with the thermal cycle times increasing
Current status of heat transfer fluid researched for concentrating solar power, Guang Dong Chemistry. 38 (2011) 84-85

Highlights oxygen piping layout, factory overhead oxygen pipes and other overhead pipes and buildings, from the structures in the country has made ​​a clear specification states: oxygen pipes and combustible gases (such as acetylene, hydrogen, etc.) co-shelf laying, should be located on both sides of the bracket or below.
The particle element method has the computation accuracy of finite element method during the continuum phase and the computation capability of discrete element method during the non-continuum phase, could be used for strong nonlinear dynamics simulation of building structure collapse.
Model and method proposed in this paper, the study of the structure of a reference value in the seismic performance and failure mechanism of earthquake collapsed under.
Journal of Natural Gas Chemistry, 2010, 1

Hydroxyl group and phosphate group in PPVA acts as chelating site to interact with metal ions, leading to the formation of a closely packed three dimensional network structure.
Recent aluminum sources used was aluminum nitrate that produce various geometrical structure such as nanocrystal [6], nano spherical and nanoplate for coating [4], nanoparticle, nanowire, and nanoropes [12], nanoparticle [25, 28] and nanocoating [3].
Thermal properties Aluminum nitrate Aluminum hydroxide DSC T (˚C) T (˚C) Tg, - - 1st peak 30-250 (broad endothermic peak) 30-350 (broad endothermic peak) 2nd peak, Tm - - SDTA T (˚C) T (˚C) 1 30-250(broad endothermic peak) 30-350(broad endothermic peak) 2 285 350-550 (broad exothermic peak) 3 455 (exothermic peak) - 4 680 580(exothermic peak) 5 820 (exothermic peak) 910(exothermic peak) TGA T (˚C) Weight residue (%) T (˚C) Weight residue (%) 1st stage 30-280 21 30-300 32 2nd stage 280-450 9 - - 3rd stage 450-720 11 300-850 17 Final Weight residue 720-1000 59 850-1000 51 Conclusion From the XRD analysis, the effect of aluminum nitrate used in the AlPO4 synthesis shows a readily crystalline structure can be obtained.
Cho, “Roles of surface chemistry on safety and electrochemistry in lithium ion batteries,” Acc.

Metals are divided into groups with body-centered cubic (bcc), face-centered cubic (fcc) and hexagonal close packed (hcp) crystal structures.
Relationship between the vacancy formation energy Evexp for bbc, fcc, hcp crystal structure of metals and the viscosity parameter 0.49MΘDkBh-1νm and the self-diffusion parameter 79.4MΘDkBh-1Dm.
Relationship between the vacancy formation energy Evexp for bbc, fcc, hcp crystal structure of metals and the viscosity parameter 2.17νma-1(MRTm)0.5 and the self-diffusion parameter 332Dma-1(MRTm)0.5.
Earnshow: Chemistry of the elements (Butterworth-Heinemann, Oxford, 1998).

As for the explanation of the improved performance of our product, we believe that the attapulgite added to the cream can form internal crosslinking network structure and hydrophilic groups, which has a strong adsorption to water, thereby enhancing the moisture rate of the cream. 3.2.2 The influence of the affapulgite addition on hygroscopic and moisture performance Fig. 1 The influence of the affapulgite addition on hygroscopic and moisture performance Fig.1 shows the influence of the affapulgite addition on hygroscopic and moisture performance.
We believe that the grinding may destroy the porous structure of the attapulgite, reduce the void room inside the porous structure and consequently suppress the incorporation of the moisture.
Lee, et al.: Radiation Physics and Chemistry, 2004(71), p.485 [3] W.

Japanese scholars, for instance, got the Nylon-6/Montmorillonite nanoparticles composites by intercalation method [2]; CAS Chemistry got the high strength, light weight and thermal stability, also it got the enhanced Polymer-Layered Silicate Nanocomposites in 2D.
This phenomenon is the result of two mechanisms: (1) ultrasonic cavitations role ultrasonic cavitations role and the role of ultrasound in the liquid-solid phase system played effects, led to fierce collision between the liquid and solid elements, the impact of solid particles can make them cutting,and promote crystallization beam which not totally solution and the beam aggregates smashed rapidly,this can achieve the purpose[6] of spread further refinement (2) The role of silane-modified and mechanical agitation in polymerization The silane coupling agent chain of KH550 has organic functional groups Y and siloxane group SiOR, structure is: Y-R-Si ≡ (OR) 3,Y is compatibility and reactivity with PF, and formed a bond key structure.
The other side SiOR also can carry out reaction with the nano-palygorskite which has many OH groups formd stable key structure.

Effects of Phenolic Oligomer on the Dynamic Mechanical Properties of Nitrile Butadiene Rubber Chang Su1, a, Pan He1, b, Lihuan Xu1, c and Cheng Zhang1,* 1 State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, International Sci.
Oligomer such as phenolic resin (PF) was added to increase damping properties, and the Tg of the blends shift to higher temperature for the formation of crosslink between matrix and PF, but tan δ value decreased remarkably [8]. 4-methyl-pheno reaction products with dicyclopentadiene and isobutylene (MPDI) is also phenolic oligomer with the structure contains phenolic hydroxyl group may also form intermolecular force with matrix, which may be more stable with matrix because of the more intense interaction, unlike PF, tan δ value may increased with the addition of MPDI.
The structure of MPDI was described in Figure 1.
Figure 1 Chemical structure of MPDI Sample preparation NBR was first kneaded with an open two-roll mill for 5 minutes at 150 oC, then MPDI was added, all the hybrid ratios are weight ratio, and the mixture was compounded for another 10 minutes at the same temperature.

Temperature Correction for Ceramic Powder X-ray Diffraction at a Higher Temperature Da-Yong Lu 1, a, Wei Cheng 1,2, Peng-Yuan Chen 3 and Xiu-Yun Sun 1 1 Research Center for Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China 2 College of Chemistry, Northeast Normal University, Changchun 130024, China 3 Department of Applied Physics, Jilin Institute of Chemical Technology, Jilin 132022, China adylu@jlict.edu.cn Keywords: Powder X-ray diffraction at different temperatures; Temperature correction; Thermal relaxation; Differential scanning calorimetry; Raman spectroscopy; Electron paramagnetic resonance Abstract.
Introduction The powder X-ray diffraction (XRD) technique is usually used at room temperature for observation and identification on the crystal structure of materials.
A weak 305 cm-1 Raman swelling between 135 and 140 °C is associated with a weak lattice deformation caused by the existence of other impurities (such as Fe and Mn, etc) in the BaTiO3 lattice, rather than the average cubic structure observed by XRD.
Hirose, Dependence of the crystal structure on particle size in barium titanate, J.