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After roadbed soil sliming, base course's crushed stone and so on is easy to fall into or is pushed in foundation bedding soil and forms the saccate structure.
Chemistry improvement methods Using chemical methods to improve expansive soil, it includes the following methods[6].
Simultaneously, the organic chemistry grouting material is one kind of non-toxic, tasteless, odourless liquid.
After chemistry solution is firmly adsorbed by earth, it will not drained and not create the environment pollution.
Using jet grouting, directional jet grouting or sprinkler irrigation, the grout under high pressure form not only the pulpous state structure, but also may form the lime or soil cement coagulation bodies which have certain structure and shape, or forms the boards and piles composite anti-slide body which can adapt to the bigger distortion. 3).

A green chemistry process can be achieved through a mechanochemistry approach [29,56].
The basic structure of a dendrimer, (modified with permission from [42]).
In mechanical chemistry, chemical reactions are initiated by mechanical force.
As a result, it's critical to comprehend the chemistry that underpins dendrimer design.
, Structure. 4 (1996) 885–889

The quantum chemistry calculation study on the title compound has been performed by quantum chemical method in SVWN5/6-31G** level.
They have been found to possess widespread usage in several fields, such as biochemistry and medical chemistry[1-5].
In this paper, we report the crystal structure, thermogravimetric analysis and fluorescence of 8-Dimethylaminomethyl-7-hydroxy-chromen-2-one.The quantum chemistry calculation study on the complex has been performed.
Pybus, “The Chemistry of Fragrances,” Eds.
SHELXS-97, Program for the Solution of Crystal Structure.

On the purpose of enhancing comprehensive experimental skills of the students, integrating the theories they learned in classes with practice, making students comprehending relevant knowledge of organic chemistry, analytical chemistry, natural pharmaceutical chemistry and pharmaceutical analysis, the sense of scientific innovation and changing waste into valuable was trained.
The comprehensive experiments are combined with the teachers' scientific research in order to enhance students’ understanding of organic chemistry, analytical chemistry, natural pharmaceutical chemistry, pharmaceutical analysis, pharmacology and other relevant basic theories, which enables students master the experimental operation skills, and cultivate the ability to analyze and solve problems.
The students are inspired that the waste could not only be used, but also bring social and economic benefits Scientific literacy Series of operations of the extract, identification and determination of the effective parts of traditional Chinese medicine enable students not only to combine pharmaceutical analysis with related pharmaceutics, natural pharmaceutical chemistry and other disciplines, but also to get close to scientific research.
Epilogue Owning to limited class hours, the completion situation of extraction was not supervised, purity test, TLC and structure identification were not done in the experiment.

Specially, the chemistry reaction is expounded.
Then the curing mechanism relates colloid chemistry, structure mechanics, and soil chemistry.
Secondly, the new resultant from chemistry reactions can enhance the interlinkage of soil granule.
Chemistry Reaction.
Some may also generate the expansion of material to fill the pores between the network structure to improve the soil pore structure [5], to improve soil strength.

Because the extended-nano space is a space to bridge isolated molecules and normal bulk fluid, new solution chemistry can be expected.
In the bulk phase, the water molecules have an ordinary liquid structure and freely translate and rotate.
In the adsorption phase, the water has an ice-like structure in which both translation and rotation are inhibited.
While this is still the assumption, we are trying to clarify the microscopic water structure by developing extended-nano X-ray diffractometry.
Kitamori: Extended-Nano Fluidic Systems for Chemistry and Biotechnology (Imperial College Press, UK, 2012)

In an industrial context, we have chosen to use a SC1 chemistry in a spin etch single wafer tool.
The processes have been developed with a fresh chemistry approach to determine etch rate and selectivity.
� �� �� �� �� ��� ��������������� VSDFH�>—P@ < LH OG �>� @ � Figure 9: Yield on leakage versus space between copper lines in combs structures
In these conditions, chemistry recirculation cannot be implementing and a fresh chemistry approach seems to be the best solution.
Finally, the morphologic study and electrical results allowed us to optimize and control this process, in relation to yield with combs structure leakage and via resistance.

This paper studied the change of glass phase splitting structure in Na2O-CaO- Al2O3-B2O3 -SiO2-TiO2 system.
Selected heat treatment temperature respectively be 700˚C, 750˚C, 800˚C and 850˚C,then kep warm for 6h.Then chemistry leaching (90˚C,2MHCl,96h) to except the rich boron.
Carrying on the NMR test at the different temperature heat treatment on the sample The selection (has not leached after test specimen after chemistry) .All NMR test completes on the Infinity solid nuclear magnetic resonance spectrometer, 27Al MAS the NMR pulse gap is 3s,11B MAS the NMR pulse gap is 2s.Front the selection after the different temperature heat treatment, chemistry leaches and chemistry leaches after test specimen under the KYKY-2800B scanning electron microscope, carries on the power spectrum to test and to observe the test specimen appearance.And has determined the test specimen crystallization condition as well as chemistry leaches in process weightlessness rate.
In Phase Splitting Structure Chemical Composition Distribution.
Phase Splitting Glass Structure.

From Supramolecular Chirogenic Systems towards Prospective Functional Materials Borovkov Victor Department of Applied Chemistry, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Japan Metek Kitamura Co., Ltd., 1 Warada-cho, Kamitoba, Minami-ku, Kyoto 601-8133, Japan victrb@chem.eng.osaka-u.ac.jp Keywords: Supramolecular chemistry, functional materials, chirality, asymmetric catalysis, thin films, nanoparticles, porphyrinoids Abstract.
The phenomenon of supramolecular chirality, which is a smart combination of supramolecular chemistry and chiral science, is demonstrated with one of the most representative structural motifs amongst existing chirogenic systems, which is based upon the ethane-bridged bis-porphyrinoids.
The specific mechanism of chirality sensing involves noncovalent interactions between 1 and various chiral compounds leading to formation of a unidirectional screw structure in the extended anti conformation of 1.
Fig. 1 Structure and syn-anti conformational switching of 1 upon interaction with external guests (L).

Zhang:Journal of Electroanalytical Chemistry Vol.628(2009),p.73
Jullen: Chemistry of Materials Vol.20(2008),p.462
Danvirutai: Industrial & Engineering Chemistry Research Vol.46(2007),p.9071
Hwang: Journal of Materials Chemistry Vol.14(2004),p. 2690
Lei:Journal of Physics and Chemistry of SolidsVol.72(2011),p.831