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Journal of Medicinal Chemistry, 2001. 44(22): p. 3572-3581
[5] Hellberg S., Sjostrom M., Skagerberg B., et al., peptide quantitative structure-activity relationships, a multivariate approach.
Journal of Medicinal Chemistry, 1987. 30(7): p. 1126-1135
Journal of Medicinal Chemistry, 1998. 41(14): p. 2481-2491
Nature, 1991. 351(6324): p. 290-296 [11] Saper M.A., Bjorkman P.J., and Wiley D.C., Refined structure of the human histocompatibility antigen HLA-A2 at 2.6A resolution.

Chitosan crosslinking the aldehyde or the anhydride with two functional groups, can change the original linear structure to network structure, which makes it not easy to dissolve in acid.
But more than 60min, with the reaction time increase, the degree of cross-linking increased, the structure of the product is denser, causing part of the active groups can not participate in the reaction, so the reaction is not completely.
Acknowledgements The authors greatly appreciate the financial supports of the National Natural Science Foundation of China (No.50874087 and No.50978212) and this study has also received more support from the key discipline of physical chemistry in metallurgy.
Gaffar, Safa M.El-Rafie and Khaled F.El-Tahlawy: Carbohydrate Polymers Vol. 56 (2004), p. 387-396 [7] Zhu Z.S., Yuan Y.C. and Chen B.N.: Chemical Bulletin Vol. 5 (2007), p. 388-391 [8] Feng C.G., Bai L.S. and Ren Q.S.: Spectra Vol. 24 (2004), p. 1315-1318 [9] Yuan Y.C., Chen B.N. and Wang R.X.: Polymer Materials Science and Engineering Vol. 1 (2004), p. 53-57 [10] Mochizuki A, Yoshi O.: Appl Polym Sci Vol. 12 (1989), p. 3375-3384 [11] Wang A.Q.: Chitin chemistry(Science Press, Beijing 2007)
[13] Zheng Z., Tang X.H., Ke C. and Wu X.M.: Jiangxi Science Vol. 3 (2008), p. 421-425 [14] Chi H., Yang W., Zhao H.D. and Wei Z.Y.: Liaoning Chemical Industry Vol. 10 (2009), p. 723-725 [15] Tzu-Yang Hsien, Gregory L Rorrer: Ind Eng Chem Res Vol. 9 (1997), p. 3631-3638 [16] Veeram Boddu, Krishnaish Abburi and Onatanl Talbott: Environ Sci Technol Vol. 19 (2003), p. 4449-4456 [17] Yuan Y.C., Shi G. and Chen B.N.: Ion exchange and adsorption Vol. 3 (2004), p. 223-230 [18] Gao H.B.: Organic Chemistry(Higher Education Press, Beijing 2003)

Hirsch (Edit.): Fullerenes and Related Structures, Springer-Verlag, (1999) p. 246
Fullerenes: Chemistry and Reactions.
Royal Society of Chemistry, (2007), p. 300
Fullerene-Based Materials: Structures and Properties.
Rietmeijer: Natural Fullerenes and Related Structures of Elemental Carbon.

Volegov3 1Institute for Metal Physics, Ural Division of RAS, 620219 Ekaterinburg, Russia; 2Institute for Solid State Chemistry, Ural Division of RAS, 620219 Ekaterinburg, Russia; 3Ural Federal University named after First President of Russia B.N.
The compounds crystallize in a disordered variant of the hexagonal Th2Ni17-type structure.
The structure of LuFe9.5-type is formed from the Th2Ni17–type one due to vacant positions in R-sublattice [2].
The Tm2Fe17-xMnx and Tm2Fe16, Tm2Fe17, Tm2Fe18, Tm2Fe19 compounds investigated crystallize in the hexagonal Th2Ni17–type structure.
The disordered variant of the Th2Ni17-type structure named as LuFe9.5-type in Ref. [2] was used for refinement of the structure parameters of the compounds.

The duplex structure of the oxide layer is readily distinguished.
From these observations, a duplex structure of the oxide layer is clearly established.
It consists on large scattered crystallites rich in Fe and having a NiFe2O4 structure forming the external layer, and a subjacent continuous and compact Cr-rich layer with a NiCr2O4 crystallographic structure.
Pieraggi, in : Proceedings of the International Conference on water Chemistry of Nuclear Reactor Systems, Operation Optimisation and New Developments, (2002)
Noel, in: Proceeding of international conference on water chemistry in nuclear power plants, Niigata (Japan), (1998)

The components, structure and spectroscopic properties were investigated.
Compositional and Structure Analysis Fig. 2 shows FTIR spectra of GO, rGO, BB, and BB-rGO.
For graphite, the sharp and intensive peak at 2θ = 26.4º indicated a highly organized crystal structure with the (002) interlayer spacing of 0.337 nm.
For GO, the peak at 2θ = 26.4º cannot be observed, and a new peak centered at 2θ = 9.3º, corresponding to the (002) interlayer spacing of 0.950 nm, might be due to high degree of exfoliation and disordered structure of GO.
Buzaneva, “Layer-by-Layer Assembly of Ultrathin Composite Films from Micron-Sized Graphite Oxide Sheets and Polycations,” Chemistry of Materials, vol. 11, no. 3, pp. 771-778, January 2010

It is stated that foam material with relatively uniform fine porous structure is obtained at foaming temperature of 950 оС.
While macrostructure of the samples obtained at 900 – 925 оС has dense crust with thickness more than 3 mm, and the samples obtained at 975 оС are deformed in consequence of vitrification and show random structure with the presence of large pores with size more than 5 mm.
Journal of Industrial and Engineering Chemistry 19 (2013) 1916 – 1925
Structure and strength of foam-glass-crystalline materials produced from a glass granulate.
Glass Physics and Chemistry 37 (2011) 371-377.

Visual examination of the structure of the obtained samples allows to draw the following conclusions: - the alloy’s structure consists of sintered together particles at low initial temperatures, - small droplets of NiAl are observed in the structure received at higher (~300°C) initial temperatures, - these droplets grow and connect to each other by bridges when the temperature grows up to 400°C, - the received after synthesis sample represents the ingot at temperatures above 400°C.
Differences in the structure of the reaction zone depending on the initial temperature were fixed in the result of analysis, which allow to explain the mechanism of interaction and the nature of the combustion front.
Li, Synthesis of porous Ni–Ti shape-memory alloys by self-propagating high-temperature synthesis: reaction mechanism and anisotropy in pore structure, Acta Mater, 48 (2000) 3895-3904
Lyakhov, Russian Journal of Physical Chemistry, B2 (2008) 77
Miyamoto, Chemistry of synthesis by combustion, translated from Japanese, Mir, Moscow, 2000.

Information about the structure of the sample was obtained from its Raman spectra (Type: Renishaw RM-1000 Raman spectrometer).
Based on these results, we feel that no significant changes about the structure of amorphous chalcogenide films occur after electron beam irradiation.
Due to intrinsic structure characteristics of chalcogenide glasses, there are many intrinsic electrons and holes within the non-crystal chalcogenide films.
Tao, et al.: Journal of Physics and Chemistry of Solids. 69(1) (2008), p. 97
Xiao, et al.: Journal of Physics and Chemistry of Solids. 68(2) (2007), p. 158

The results are discussed in terms of crystal structure, optical property and the chemical composition.
Crystal structure of undoped and Nb-doped TiO2 powders was determined using an XRD-6000 X-ray diffractometer (Shimadzu) with a Cu Kα radiation source (λ=1.5481Å, 40.0KV, 30.0mA).
Typical crystal structure of anatase TiO2 was observed, where the peaks can be indexed to the (101), (004), (200), (105), (204) crystal planes of body-centered tetragonal TiO2 (JCPDS #21-1272)[13].
Here, no impurities of Nb compounds can be detected, which indicates that Nb successfully occupies the Ti sites, with the crystal structure of anatase undestroyed.
Journal of Electroanalytical Chemistry. vol. 611, no. 1, pp. 67~79, 2007