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Radon, which can come into human body through human respiration, widely disperses in the adipose tissue, nervous system, reticuloendothelial system and blood, and it can break the structure of DAN and lead to cancer.
Green Chemistry and Architecture[J].
Fundamental Chemistry[M].Higher Education Press, 2004: 278,322

There are several observations that the grain boundary structure is influenced by the chemistry of additives, e.g., clean grain boundaries without an amorphous intergranular film (IGF) were observed in the SiC sintered with Sc2O3-AlN, crystallized boundaries were observed in the SiC sintered with Lu2O3-AlN and grain boundaries with an amorphous IGF were observed in the SiC sintered with Y2O3-AlN [6,7]..
Thus, the interfacial debonding for toughening and softening of the boundary phase at high temperatures were influenced by the chemistry of sintering additives.

Furthermore the structure parameters and chemical reactions are defined in the catalytic converter module[9].
College Chemistry,2000,15(6):49-5016
Industrial & engineering chemistry research, 1998, 37(6): 2341-2349

Fig.1 shows the connections for single oscillator and the structure of an open chain of coupled oscillators.
Reference [1] C. von der Malsburg, The correlation theory of brain function, Max-Planck-Institute for Biophysical Chemistry, Internal Rep.81-2 (1981) [2] R.M.Haralick and L.G.Shapiro,in: Image segmentation techniques, Comput.Graph.Image Process.
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Conductivity of different blends at 1kHz However, increasing irradiation dose lowered the conductivity of all blends films revealed the mobility of ions were distracted by the arrangement and changes in chemical structures of the polymer molecules during irradiation process.
In Chemistry, Biochemistry and Biology.
Silva: Radiation Physics and Chemistry 76:1708-1710 (2007)

Fourier transform infrared (FTIR) spectroscopy and attenuated total reflection (ATR) technology are effective determination methods for structure and content of components[1].
Wilson, “Fourier Transform mid-infrared spectroscopy for food analysis,” Trends in Analyical Chemistry, Sep. 1990, pp.127-131
Ren, “Joint optimization of Savitzky-Golay smoothing models and partial least squares factors for near-infrared spectroscopic analysis of serum glucose,” Chinese Joumal of Analytical Chemistry, vol. 38, no. 3, 2010, pp. 342-346.

The above flexible films with three-layer (OSF3) or four-layer (OSF4) structure were prepared by dry lamination.
Fennema (Ed.), Food chemistry, New York: Marcel Dekker 1985)
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Metal oxide catalysts Compared to zeolite catalysts, metal oxide catalysts have better thermal stability and hydrothermal stability so as to get the attention of people, but the single metal oxide catalysts are unstable at high temperatures,and the catalytic activity are low.The catalytic activity of composite metal oxides can be improved if we take some measures such as stabilization of some active components, structure control and adjustment.
[J].Journal of Fuel Chemistry and Technology, 2011,39(10):782-786.
[J].Jouenal of Fuel Chemistry and Technology,2011, 39(4):300-306.

The x-ray diffraction (XRD) patterns were obtained with a Bruker D 8 Advance instrument to determine bulk crystalline structure of the catalyst by using Cu Kα radiation (1.5406 Å) at 40 kV and 40 mA.
Akaratiwa: Chemistry Letters Vol. 29 (2000), p. 986 [19] J.D.F.
Rich: Journal of Applied Chemistry Vol. 2 (1952), p. 681 [20] K.

Azo dyes are the most versatile class of dye, but have complex molecule structure, difficult degradation properties under natural conditions and are not easily removed from water by conventional wastewater treatment systems [2].
Acknowledgements This work was supported by the National Science & Technology Program of China (grant no.50978208) and a grant from Natural Science Foundation of Hubei Province of China (Project 2009CDA022) and Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering (YR2010010).
Kiwi, Photobleaching and Mineralization of Orange II by Oxone and Metal-Ions Involving Fenton-Like Chemistry under Visible Light, J.