Search results

There have a lot of amino and hydroxyl in the structure of chitosan which provide it excellent adsorption to anion after cross-linking modification[6,7].
Acknowledgements The authors greatly appreciate the financial supports of the National Natural Foundation of China(No. 50874087 and No. 50978212) and express their sincere gratitude to the Key Subject of Physical Chemistry of Metallurgy of Xi’an University of Architecture and Technology.

Slope deformation monitoring methods Monitoring Project Monitoring technique Monitoring instruments Surface deformation monitoring Geodetic measurements, GPS, RS method, close range photogrammetry, laser holography, laser speckle method, Theodolite, Level, Total Station, GPS, strain gauge subterranean deformation monitoring Inclinometer method, test stitch Inclinometer, displacement meter Groundwater monitoring Pore water pressure, water chemistry analysis Pore water pressure meter Stress monitoring Stress monitoring Stress sensor, stress boxes Surface deformation monitoring is the commonly used method to monitor the slope, but the traditional methods of observation is labor intensive, can not be continuous monitoring or automated monitoring.
Monitoring points antenna amplifier GPS Sharing GPS Receiver WL AN database server Control center GPS Base station Monitoring Report Data calculated antenna antenna antenna amplifier Fig.1 Multi-antenna GPS Network monitoring system structure Key Technologies Automatic Control Technology.

Chemical Exploitation of Agricultural Residues as Novel Materials for Industrial Use Xiao-Feng Sun, Guang-zheng Wang Department of Chemistry Northwestern Polytechnical University Xi’an, China xf001sn@hotmail.com, luodemanyy@126.com Keywords: Cellulose, hemicellulose, cosmetics, natural sorbents Abstract.
Scheme for isolation of hemicellulose by alkaline peroxide that an increase in concentration of either acetic acid or formic acid resulted in an increment of hemicelluloses and lignin released, but did not lead to substantial changes in the macromolecular structure of hemicelluloses, except for a partial acetylation and degradation of the polymers.

SQS is a kind of saponin, whose chemical structure is similar to those of ginseng saponin and other saponins [3-6].
Ran: Chinese Journal of Synthetic Chemistry Vol.5 (2008), p. 611

Vorster1,d and Jian Liu1,3,e 1 Dept of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, England 2 Current address: Dept of Mechanical Engineering, Imperial College, Exhibition Road, London SW7 2AZ, England 3 Current address: Department of Chemistry, South Road, Durham DH1 3LE, England a alexander.korsunsky@eng.ox.ac.uk, bshu.zhang@eng.ox.ac.uk, cd.dini@imperial.ac.uk, d willem.vorster@eng.ox.ac.uk, ejian.liu@durham.ac.uk Keywords: energy-dispersive X-ray diffraction, laboratory X-ray diffraction, lattice parameter, strain, stress analysis Abstract.
In practice the setup described here may be particularly advantageous for plate of shell-like structures that may have complex shapes, e.g. casings, forgings, etc.

The cofferdam area which is in between the tanks inside LNG ship was taken as 5oC in order to satisfy minimum allowable design temperature of the shell structure material.
Industrial & Engineering Chemistry Research.

Preparation and Performance Research of the PBC / PLA Biodegradable Film Xiaohua Gu1,a, Baoyun Xu2,b, Peng Zeng3,c, Xiwei Zhang4,d, Xijun Liu 1College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China aemail: gxh219@yahoo.cn, bemail:810878063@qq.com Keywords: poly (butylene carbonate) (PBC), compatibility.
vibration of methylene peaks the wave number is 2966.17 cm-1 on behalf of the C=O stretching vibration peaks of the key of the wave number is 1748.47 cm-1 on behalf of the C-O-C key stretching vibration peak of the wave number are 1266.29 cm-1, 1098.75 cm-1 and 1029.28 cm-1 and indicating the existence of ester base, on behalf of the bending vibration of methylene peaks of the wave number is 1470.60 cm-1.For PLA, on behalf of the hydrogen bonding of wave number is 3484.89 cm-1 stretching vibration peak, on behalf of the C H stretching vibration peak of wave number are 2997.07 cm-1and 2948.00 cm-1. on behalf of the C = O stretching vibration peaks of the key of wave number is 1758.53 cm-1 on behalf of the C-O-C key stretching vibration peak the wave number are 1188.79 cm-1, 1115.49 cm-1and 1045.79 cm-1, indicating the existence of ester base. on behalf of the CH3 bending vibration peak the wave number is 1453.34 cm-1.From the above analysis we can know the PBC and the PLA have the similar structure

Fig. 8 IR spectrum of heterobimetallic Fig. 9 Structure of MgAl2(OBun)6(OCCH3CHCOCH3)2 magnesium aluminate n-butaxide with acetylacetone Alkoxide hydrolysis polycondensation and the mechanism of colloidal particles formation Condensation polymerization always goes hand in hand with hydrolysis of metal alkoxide.
(in Chinese) [9] Xuechen Duan, Xiangpin Yang and Xiangwei Wu: Rare Metals and Cemented Carbides Vol. (2001), p. 41 [10] Hongwen Hu, in: Organic Chemistry, edited by Higher Education Press, Beijing, (2006).

This demonstrated that some properties of TiO2 are very sensitive towards its structure.
Lei, Preparation of an Ag–TiO2 photocatalyst coated on activated carbon by MOCVD, Materials Chemistry and Physics 91 (2005) 73–79

Among the power plant equipments, the condensing system with a complicated structure is prone to meet faults, so condition monitoring of the condenser in power plant is always an important research topic.
Computers and Applied Chemistry, 2006, 23(4): 303-306.