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A single crystal of HoFe5Al7 (tetragonal ThMn12 structure) has been studied.
Introduction Intermetallic compounds RFe5Al7 (R – Sm-Lu, Y) crystallizing in the tetragonal ThMn12-type structure (space group I4/mmm) display interesting magnetic properties [1].
Conclusion Magnetic studies of a ferrimagnetic HoFe5Al7 (TC = 220 K, Tcomp = 65 K) single crystal with the tetragonal ThMn12-type structure have been performed.
Suski, The ThMn12-type compounds of rare earths and actinides: structure, magnetic and related properties, in: K.A.
Eyring (Eds.), Handbook on the Physics and Chemistry of Rare Earths, vol. 22, Elsevier, Amsterdam, 1996, p. 143-294

Results showed that the tensile storage modulus, tensile loss modulus, and tensile loss factor of the cured film were influenced by the addition of the lignin, which indicated that proper dosage of the lignin could change the micro-phase separation structure and improve the mechanical properties of the product.
The dynamic mechanical analysis would be of help to further understand the structure and properties of the cured films.
The trend of tensile strength probably ascribed to the three-dimensional structure of lignin and the lack of uniformity in lignin distribution.
The presence of the lignin with proper dosage could change the micro-phase separation structure of the cured films.
,Wu, X.J., Zhao, C.S. in:16th International Symposium on Wood, Fiber and Pulping Chemistry , edtied by China Light Industry Press ,Beijing (2011). in press

Research on Urbanization Development of Mountainous Area —Take in Yichang for Example Guiyuan Li 1,a , Feifei Yu 2,b, Jing Chen 3,c, Zhongyuan Duan 3,c 1School of Urban Design of Wuhan University, Wuhan, Hubei, China 2Art Academy of China Three Gorges University, Yichang ,Hubei ,China 3College of Chemistry and Life Science of China Three Gorges University, Yichang ,Hubei ,China 3College of Civil Engineering and Architecture of China Three Gorges University, Yichang ,Hubei, China algy@ctgu.edu.cn,b1283774@qq.com, c1034524091@QQ.com ,cduanzhong_yuan@126.com Keywords: mountainous urbanization, characteristics, industrial structure, population, resources, environment, sustainable development Abstract.
Urbanization brings changes in occupations, population, industrial structure, and also in the land and geographical structure.
All of this caused the adjustment of city structure and dynamic development trend.
Presant situation and development trend of urbanization,During the "Eleventh Five-Year" period, Yichang made some progress in urban structure, spatial distribution, and layout of industrial structure, and so on.
We also need to the develop technology in agriculture and industry by saving resources and protecting the environment to make sure the layout of the industrial structure and development are combined with regional population ,resources and environment[5].

Synthesis of poly [cyclotriphosphazene-co-(4, 4’-sulfonyldiphenol)] microspheres grafted by water-soluble chitosan Xiaoyan Zhanga*, Tongwei Hanb, Qi Zhanga, Jingbo Wua aSchool of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China bFaculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, 212013, China * Corresponding author: zhangxyan@ujs.edu.cn Keywords: Polymers; microstructure; inorganic-organic microspheres; water-soluble.
The morphology and structure of PZSMS-g-Cs were characterized by SEM and TEM.
Chemical structure The successful fabrication of PZSMS-g-Cs was confirmed by FT-IR.
In Fig.1 (a), the peaks observed at around 895 cm-1 correspond to C-H absorption, 1040 cm-1 correspond to C-O-C, 1154 cm-1 and 1390 cm-1 accord to C-N and 1664 cm-1 accord to N-H, which are all assigned to the saccharide structure.

Studies on Hydrolysis of P-nitrophenyl Picolinate by Usernsymmetrical Bis-Schiff Base Manganese Complexes with Aza-Crown Ether or Morpholino Pendants Zheng Xiang a, Jianzhang Li b*, Shengtian Huang c, Zhuzhu Yang d, Wei Hu e Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, School of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, 643000, P.
The effects of complex structures, reaction pH and reaction temperature on the rate of PNPP hydrolysis have been investigted.
The structures of unsymmetrical Schiff base manganese complexes are shown in Fig.
Fig. 1 Structures of unsymmetrical bis-Schiff base manganese complexes Results and discussion The pseudo-first-order-rate constants obtained for catalytic PNPP hydrolysis by Schiff base manganese complexes at 25 oC are shown in Table 1.

These structures are assembled/organized on insulating surfaces for integration of resistor based devices for the specific sensing of chemicals in gaseous as well as in liquid media.
Various top-down, bottom-up and hybrid fabrication routes of discontinuous palladium structures can be used for the fabrication of such resistor based sensing devices. 1-D, 2D, and 3-D structures can be achieved using appropriate material templating and self-organization methods constituting an appropriate case study for the evaluation of potential fabrication methods of nanogaps for sensing.
Analytical chemistry, 74, 1546, 2002

Infrared spectrum (IR) and ultraviolet spectrum (UV) in conjunction with nuclear magnetic resonance (NMR) had been performed to characterize its structure.
(2) Imidazoline Structure characterization of synthesis product SHIMADZU IR infrared spectrometer was used to determine infrared spectrum of the synthetic product.
Results and discussion Structure identification of synthesis product Infrared spectrum analysis Fig.1 shows infrared spectrum of synthesis product I9602.
[2] Xueyuan Zhang: CO2 Corrosion and Control (Chemistry Industry Publications, China 2000)

Properties of poly(4-hyderoxybenzoate) oligomer and its blends with poly(trimethylene terephthalate) Mingtao Runa, Xiaomin Hub, Meibo Sunc and Weitao Mad Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, Hebei, P.
Their chemical structure characterization and crystal morphology were investigated by using the fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance ( 1HNMR), and polarizing optical microscopy, respectively.
The molecular structure and crystal morphology of the PHBA and PTT/PHBA blends were investigated by using the FTIR, 1HNMR and POM respectively. 2.
Chemical reactions and molecular structures of PHBA oligomers were shown in Scheme 1.
Results and discussions 3.1 PHBA oligomer chemical structure analysis In the infrared spectrum, the carbonyl peak position is usually distinctly different between ester and carboxyl, which are assigned at 1750-1751 cm-1 and 1680-1690 cm-1 respectively.

Effect of Partial Oxidation Rubber on Hydrophilicity of Cement Composites Chi-Yao Chen1,a, Tzu-Hou Wang1,b and Maw-Tien Lee1,c* 1Department of Applied Chemistry, National Chiayi University, Chiayi City, Taiwan appicc1478@gmail.com, b test.a-123@yahoo.com.tw, c*mtlee@mail.ncyu.edu.tw Keywords: Cement Paste, Hydration, Crumb Rubber, Partial Oxidation Abstract.
SEM images also showed that such sample had very dense C-S-H structure.
It is found by area ratio and SEM that this hardened cement paste exhibits extremely dense C-S-H structure and is extremely tightly bonded to the rubber.
However, the cement paste added with rubber particles treated at 250 ° C has a finer structure as depicted in Fig. 3 and more calcium silicate hydrate (C-S-H) crystals.
The properly partially oxidized crumb rubber could enhance the hydration of cement and produced more fine C-S-H structure as depicted by the SEM images. 5.

The composition, phase structure, particle size, absorbance spectrum, and photocatalytic performance of samples were characterized by XRD, EDS, nano laser particle size analyzer, and UV-Vis spectrophotometer.
It can be concluded that the nano-structures of V/Fe co-doped TiO2 was not changed.
By this method, nano-TiO2 prepared was anatase structure, and its crystallinity was better.
Yin, Tailored visible-light driven anatase TiO2 photocatalysta based on controllable metal ion doping and ordered mesoporous structure, J.
Zhang, Enhanced photocatalytic activity for titanium dioxide by co-modification with copper and iron, Transtion Metal Chemistry 35 (2010) 933-938