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China, jmzhu@nju.edu.cn 2 Department of Chemistry, Nanjing University.
Therefore, it is very necessary to develop new technique so as to organize nanoparticles into 3-D aggregates with ordered structures and regular shapes.
Otherwise, the second-order diffraction circles in above SAED indicate that this tetragonal-like shape object is a double-layer structure, which is composed of KCl crystal layer and aggregate-layer of ZnSnO3 nanocrystallines.
TEM image of the double-layer structure including KCl template substrate and ZnSnO3 aggregate layer, which can be confirmed by the second-order diffraction circles in the SAED pattern.

Mechanism Analysis of Induction-Type Coil Target for Velocity Measurement Xiong Xianfeng1, a, Kong Deren2, b, Ruan Xiaofeng2, c 1Xi’an Modern Chemistry Research Institute, Xi’an, China 2 Mechanical Engineering College, Nanjing University of Science and Technology, Nanjing, China azlangzl@163.com, bderenkong@hotmail.com, cxhruanxiaofeng@yahoo.com.cn Keywords: coil target, projectile velocity measurement, mechanism analysis Abstract.
When the projectile approaching or leaving the coil target, the magnetic flux through the coil changes, according to law of electromagnetic induction, the inductive electromotive force ‘e’ is (4) In the equation, ‘z’ is the distance between the projectile and the coil target; this equation describes the relationship between the inductive electromotive force and the distance, and also reveals the relationship between the inductive electromotive force and the structure parameters of the coil target.
Figure 2 Normalized curve of inductive electromotive force Table 1 List of λ -1.5 -1 -0.5 0 0.5 1 1.5 η -0.28 -0.62 -1.00 0 1.00 0.62 0.28 Analyzing figure 2 and table 1, we can get several properties below: (1)The relationship between inductive electromotive force and structure parameters of coil target is given by equation (4), which can be used as the basis for optimizing the design and manufacture of the coil target
This point is also called zero-crossing point of inductive electromotive force, and plays an important role, it can mark projectile's spatial position; further study indicates that the zero-crossing point of inductive electromotive force is not influenced by projectile deviating from the axis of coil target, and have no relation to structure parameter of coil target, so it is an ideal signal point

Direct formation of Zn-Al layered double hydroxide thin films intercalated with various organic anions through the sol-gel method with hot water treatment Naoko Yamaguchi a , Kiyoharu Tadanaga, and Masahiro Tatsumisago 1 Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan a naoko-y@chem.osakafu-u.ac.jp Keywords: layered double hydroxide, hot water treatment, immobilization, transparent, thin film, sol-gel Abstract.
Change of surface structure of Zn-Al LDH films treated with organic solutions was also investigated.
The nanocrystals precipitated on the film treated with distilled water (b) have hexagonal structure.
In all the systems, nanocrystals with hexagonal structure of LDH were formed on the films by immersion in hot water.

Introduction Hydrilla verticillata have the characteristic similar to other submersed normal aquatic plants, which had the vegetative propagative structures and a well-developed root system for carbohydrate storage make it different from other plants.
However, they have either monoecious or dioecious with both male and female flowers that can grow under almost all ranges of water chemistry conditions and its can be migrated rapidly in deep water even with the low light requirement.
H. verticillata was used application for modelling of biogas production from anaerobic digestion [1], studying the genetic structure of H. verticillata in eastern Asian [2].
Purcell, Genetic structure of Hydrilla verticillata L.f.

The Effect of Defect Disorder on the Electronic Structure of Rutile TiO2-x Faruque M.
Keywords: Electronic structure, titanium oxide, defect formation energies, nonstoichiometry Abstract.
The purpose of this work is to study the effect of bulk point defects on the electronic structure of rutile TiO2.
Introduction The electronic structure of point defects in oxide semiconductors has been extensively studied in order to establish the relationship between defect chemistry and semi-conducting properties.
Stoichiometric superstructure The 222abc××super cell (Ti16O32) is used as a stoichiometric TiO2 super-structure.

Study on Action Mechanism of Polyvinyl Alcohol Polymers in High Performance Cement-Based Composites Dong Lin 1, 2 ,a, Ziyun Wen 2,b 1 School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou ,China 510640 2 School of Material Science and Engineering, South China University of Technology, Guangzhou ,China 510640 alindong801＠126.com,bimzywen@scut.edu.cn Keywords: high performance cement-based composites, polyvinyl alcohol, strength, interface zone Abstract.
By using SEM and XRD, it is found that the interface zone structure is improved and so it was of high-density, low-porosity and high adhere-strength, and PVA polymers chemical action works in the course of cement hydration and hardening.
Therefore, being high performance material, its composition and structure is different from that of common cement based material.
It can be seen from the figure that there are a certain of Ca(OH)2 in layer obviously with big pores and the structure is obviously loose.
Mehta: Concrete: Structure, Properties and Materials, translated by Zhu Yongnian, Shen Wei, Press of Tongji University ,1991.

By using chemical methods, such as Polymeric Precursor Method, the organic impurities or extrinsic defects caused by doping play an important rule on the formation of precursor structure before the phase crystallization above 500 ºC.
The Rietveld refinement was performed by using DBWS software, version 9807 [14] starting with structural models of anatase and rutile in order to obtain refined structures, which were analyzed through the compilation of output data.
As consequence, rutile structure presents more crystalline (lower FWHM values), by contrary of anatase phase crystallinity, which remains next to presented by non-doped sample.
[13] ICSD - Inorganic Crystal Structure Database.
Wiedemann, Thermal Analysis, Volume 3: Organic and Macromolecular Chemistry, Ceramics, Earth Science, H.G.

Theoretical investigation on the electron transport through single alkandithiol molecules under different compression Jin Huan Yao1,2,a, Ning Li1, Jian Rong Xiao3 and Yan Wei Li1,2,b 1College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China 2Key laboratory of new processing technology for nonferrous metals and materials, Ministry of Education, Guilin University of Technology, Guilin 541004, China 3College of Science, Guilin University of Technology, Guilin 541004, China ayaojinhuan@126.com; blywhit@glite.edu.cn Keywords: Molecular electronics; Electron transport; Single molecule; Compression.
The mechanism of the effect of molecular compression on the electron transport behavior has been discussed in terms of electronic structures and transmission spectra.

The chemical structure of the polymer was confirmed by GPC, 1H-NMR and DSC measurements.
Introduction Controlled radical polymerization (CRP) technique has attracted recent scientific and industrial attention in the fields of polymer chemistry[1].

By scanning electron microscope (SEM) and energy disperse spectroscope (EDS) analysis, it was found that VC was the powerful heterogeneous nuclei, which prompted numerous nucleating, refined the structure grains and caused the serious crystallographic lattice distortion, so the hardness increased.
Cast steel is one of the most widely applied structure materials.
The micro structure at position 4 on isothermal curves of samples without vanadium microalloying and with 0.16wt.% vanadium microalloying were shown in Fig.4. the grain size of the former without microalloying was about 300μm in diameter, but the latter with 0.16wt.% vanadium was only 100~150μm in diameter, decreasing to one third to half.
Conlusions With vanadium microalloying for ZG270-500, VC was the powerful heterogeneous nuclei, which promoted numerous nucleating, refining the matrix structure.
Zhang: Metallurgical Physical Chemistry (Metallurgical Industry Publication, Beijing 2004), in Chinese