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Introduction Nanoparticles reinforced polymers attract more and more attentions due to their unique properties resulting from the nano-scale structures.
The CNTs (multi-walled carbon nanotube, purity 95 wt%, diameter 10–30 nm) synthesized by chemical vapor deposition was purchased from Chengdu Organic Chemistry Co.
The synthesis and structure of nanocrystalline materials produced by mechanical attrition: a review.
Alumina-filled polystyrene microand nanocomposites prepared by melt mixing with and without latex precompounding: structure and properties.

A novel chemical image sensor applied the principles of optical chemistry and micro-fabrication technology is developed to detect the ion concentrations in the solution qualitatively and quantitatively by He Huiqi[1].
Structure of optical fiber sensor array The structure of optical fiber sensor array is shown as Fig.1.The spectral signals of sensor sensitive to A, B, C and D ions are collected by spectrometer and transferred to PC.
（1） Fig.1 The structure of optical fiber sensor array In this article ,n is valued as 4 corresponding to four ions, peak height normalized of A,B,C and D ions a1，a2 , a3 and a4 are valued as 0.9,0.85 ,0.8 and 0.95，peak position b1,b2 ,b3and b4 are valued as 300nm,400nm,500nm and 600nm, peak width c1,c2 ,c3 and c4 are valued as 100nm respectively.

Introduction Microcapsule has many physical properties, measuring characteristic parameters of microcapsule is mainly: shape and structure, particle size and size distribution, content of the core material and composition, capsule wall thickness, wall core ratio, storage stability, core material release behavior, etc.
The main factors mainly are emulsifying conditions, polymer reaction temperature, chemical structure of wall material, emulsifier, the structure of the preparation container, etc.
Analytical chemistry, 1998, 70(1): 111-116 [2] Ki-jeong Hong.

Preparation of titanium dioxide nanotube arrays and photocatalytic degradation of methyl orange Yingcao Xu1,2,a, Hong You1,b 1State Key Laboratory of Urban Water Resource and Environment, School of municipal & environmental engineering, Harbin Institute of Technology, Harbin 150090, China 2Applied chemistry department, School of sciences, Northeast Agriculture University, Harbin, 150030, China axuyingcao@aliyun.com, byouhong@hit.edu.cn Keywords: TiO2 nanotube array, photocatalyst, methyl orange.
Since 2001, Grime[1] found that nano-titanium dioxide tubes which has a neat tubular morphology, for its good adsorption capacity, high surface area and unique structure, gradually, it is attracted people's attention.
TiO2 nanotubes prepared by anodic oxidation Has the advantage of well-distributed and neatly-arranged nanotubes structure, combined with a solid titanium conductive substrate, and simple preparation methods[4-5].
Because the unique tubular structure of TiO2 nanotube arrays can provide a one-way channel in transfer of photoinduced electron, so TiO2 nanotubes Has the advantage of excellent photocatalytic properties and photoelectric conversion efficiency [6].

The Study on Chloride Corrosion of Concrete Containing Admixture Mineral Meili Zhao1, a, Aixiang Li 2,b, Lintong Wang3,c, Yunfa Chen4,d 1,3,4Department of chemistry and chemical Engnieering of Weifang University,Weifang,Shandong 261061, P.R.
The chloride ions penetrated to the concrete-steel surface and built up gradually,then reached the cirtical concentration.The chloride ions damaged the surface of the steel then led the severe steel corrosion[1].So the concrete structure was severely damaged.
Conclusion According the before three methods test for the chloride resistances ，we found that the chloride resistances concretes with admixture mineral were more better than the benchmark concretes.We concluded that the admixture mineral could improve the chloride resistances of the concretes.The activity of the admixture mineral and these particles filling the hole had improved the inner structure of the concretes.
The more dense structure,it could get the more better performance.

Synthesis and Properties of A New Unsymmetrical Diarylethene Bearing Benzothiophene and Thiophene Rings Shuhong Jing, Shouzhi Pu* and Congbin Fan Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science and Technology Normal University Nanchang 330013, P.
During the reversible photoisomerization, some physical properties of photochromic compounds, such as absorption spectra, fluorescence emission, conjugation, electron conductivity, electrochemical properties, magnetic properties, coordination properties, dipole interaction, refractive index, dielectric constant and geomet-rical structure may be tuned by light. [1,2] Photocyclization involving 6π electrons can proceed only from the antiparallel conformer of open-isomers, while the parallel conformer is photochemically inactive according to Woodward– Hoffman rules.
This electrocyclisation, induced by UV irradiation, transforms the open (o)isomer into a strongly conjugated closed (c) structure while the back reaction is driven by visible light.
The structure of 1o was characterized by 1H NMR.1H NMR (400 MHz, CDCl3, ppm): δ 1.93(s, 3H, -CH3), 2.29 (s, 3H, -CH3), 2.28 (s, 1H, hydroxy-H), 4.69 (d, 2H, -CH2-), 7.17 (s, 1H, thiophene-H), 7.25-7.34 (m, 4H, benzene-H), 7.40,7.42 (d, 2H, J = 8.0 Hz, benzothiophene -H), 7.56,7.58 (d, 1H, J = 8.0 Hz, -H), 7.73,7.75 (d, 1H, J = 8.0 Hz, benzothiophene -H).

XRD measurement shows that all the films are anatase crystal structure.
(2) XRD measurement shows that all the films are anatase crystal structure when films were calcined at 773K for 1h
The Journal of Physical Chemistry.C,117(2013)25586–25595
Hydrothermal synthesis of different TiO2 nanostructures: structure, growth and gas sensor properties[J].

The structure of the adaptive filter The filter frequency of the adaptive filters is automatically adapted to the change of the input signal.
The adaptive filters have the structure of FIR and IIR, which have the ability of self regulation and tracking signal.
In practical application, we commonly used FIR filter and the general structure of adaptive filter as shown in figure 1[6].
[3] Zhao Hongyi, “Digital Signal Processing and Its MATLAB Realization , The chemistry industrial publisher, vol. 2, Beijing, 2002，pp.210-248 [4] Qi Haibing, “A design method of adaptive filters based on LMS”, vol. 23, Information Technology, August 2006, pp.23-27

Tab. 2 Water vapor permeability of the packaging material Stucture Oxygen permeability [mL/m2·24h] Water vpor permeability [mL/m2·24h] Stucture Oxygen permeability [mL/m2·24h] Water vpor permeability [mL/m2·24h] PAN 25 82 PC 50 24 PVDC 25 1 PS 25 120 PA6 (BO) 15 250 PE(ρ=0.92g/cm3) 25 19 PA66 25 607 PE(ρ=0.935g/cm3) 25 11 PET (BO) 12 55 PE(ρ=0.955g/cm3) 25 5 PU 25 850 PP 20 15 Improvement of the Packaging Barrier Property Composite multilayer structure packaging is one of the most important technologies to improve the barrier property.
Of course, different part of the structure calls for different requirement.
Different monomer molecular structure of various plastics, different degrees of polymerization, different type and quantity of additives, could cause different performances.
[2] Cristina Bach, Xavier Dauchy, Isabelle Severin, Jean-François Munoz, Serge Etienne, Marie-Christine, Effect of temperature on the release of intentionally and non-intentionally added substances from polyethylene terephthalate (PET) bottles into water:Chemical analysis and potential toxicity, Food Chemistry 139 (2013) 672–680

Traditional PID control has a simple structure and good steady performance, but it is difficult to achieve high-precision and high-performance control.
Overview of 6PUS-UPU parallel manipulator 6PUS-UPU parallel manipulator is a self-developed 5-DOF parallel mechanism and it has large stiffness weigh ratio, simple structure, low moving mass and good dynamic performance.
The structure of 6-PUS/UPU parallel manipulator is shown in Fig. 1, including the fixed platform, the moving platform and the connected branches.
Pedret: Industrial and Engineering Chemistry Research, Vol.50(2011), p.11170