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In the micro analysis of combustion products of aluminum nanopowder mixture and simple substances we can observe porous structures.
Koidzumi, Chemistry of incineration synthesis, Mir, Мoscow, 1998

Photochromism Properties of a New Unsymmetrical Diarylethene Bearing a Benzene Unit Panpan Ren, Renjie Wang and Shouzhi Pu* Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.
The structure of diarylethene 1O was confirmed by 1H NMR. 1H NMR (CDCl3, 400 MHz, TMS): δ (ppm):1.94 (s, 3H), 2.17 (s, 3H), 4.01-4.11 (m, 4H), 6.01 (s, 1H), 7.15 (s, 1H), 7.33 (s, 1H), 7.46-7.53 (m, 4H).

Table 1 Powder materials used in the development Name The original application The median grain size of particles Electronic Oxide 40 Fe3O4 - use in chemistry 10 µm W 40.29 addition of packaging welding electrodes metallurgy - molding containers of welding electrodes 150 μm SOMALOY TM500 composite materials for magnetic circuits Electrical - pressing pressure to 800 MPa - parts of magnetic circuits 100 μm For the conditions set out in the introduction were considered the following assumptions: § All three materials commonly exhibit loss of 2-10 W/kg and low volume models are irrelevant for the verification principle
The model structure is expected between the layers (Fig. 2) are the air gap width lair in the direction of magnetic flux and equation (3) allows the central space to provide, if known, or we can measure, the effective permeability of the material.

However, it is suitable on low and intermediate temperature, as high temperature for long period of time can coarsening the grain, weakening the structure.
Vilar, XRD, XPS and SEM characterisation of Cu–NbC nanocomposite produced by mechanical alloying, Materials Chemistry and Physics, 109 (2008), 174–180.

School of Chemistry and Molecular Engineering, Zhengzhou University, Kexue Road 100, Zhengzhou, 450001, PR China 2.
Introduction Dyes usually have a synthetic origin and complex aromatic molecular structures which make them more stable and more difficult to biodegrade.

Li, Characterization of amorphous and nanocrystalline carbon films, Materials Chemistry and Physics, 96 (2006) 253-277
Glass, Analysis of the composite structures id diamond thin films by Raman spectroscopy, Physical Review, 41 (6) (1990) 3738-3745

A simple method of synthesis of graphene oxide-silicon nanoparticle composite as potential anode material for lithium ion batteries Aswathi R1,a and Sandhya K Y1,b* 1Department of Chemistry, Indian Institute of Space Science and Technology, Thiruvananthapuram-695 547, Kerala, India aaswathinair560@gmail.com, bkysandh@yahoo.com Keywords: graphene-silicon, anode material, lithium ion batteries Abstract.
Liu, Hollow core–shell structured porous Si–C nanocomposites for Li-ion battery anodes, J.

No changes in crystal structure are observed in the samples.
Acknowledgments This work was financially supported by the Leading Academic Discipline Project of Shanghai Municipal Education Commission (J50102); State Key Laboratory of Electrical Insulation and Power Equipment (EIPE11204); State Key Laboratory of Inorganic Synthesis and Preparative Chemistry of Jilin University (2011-22); Natural Science Foundation of Jiangsu Province (BK2011243; BK2008224); Research Foundation of Jiangsu University (11JDG084); Technology Research and Development Program of Changshu(CG201005) and Universities Natural Science Research Project of Jiangsu Province (10KJD430002).

Synthesis of Octyl acrylate (A) Result and discussion Characterization of Monomers.The structure of monomer was characterized with FT-IR and 1H NMR.
Fine chemical,Vol.5(1997) [11] Huang Jiqing,Meng Weidong,Fengling Qin.Journal of Fluorine Chemistry,Vol.128(2007), p.1469-1477(in Chinese).

From the XRD studies, it is observed that the LPP and Nb doped LPP crystals retain the monoclinic structure and the calculated lattice parameter values are comparable with the reported values of LPP.
Physics and Chemistry of Solid, 69 (2008) 2634-2638