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In this work, the EPR spectra of the tetragonal and cubic BST ceramics were investigated to understand defect chemistry in BST.
Crystal structure was determined by MS Modeling (Accelry Inc.) and Cu Kα1 radiation (λ = 0.1540562 nm), as described elsewhere [7].
BS15T and BS20T show a tetragonal perovskite structure.
BS35T has a cubic structure (a = 3.9674 Å, V0 = 62.45 Å3), in good agreement with the result reported by Fu et al [4].
When the g-tensor is rhombic and the principal components are well separated the powder spectrum is more structured [18].

Catalytic Oxidation of Benzyl Alcohol to Benzaldehyde With Fe/Cu-cross-linked Montmorillonite Xueju Zhang, He Song, Xiangfeng Guo, Lihua Jia* College of Chemistry and Chemical Engineering, Qiqihar University, Heilongjiang Province, China jlh29@163.com Keywords: Fe/Cu-Cross-linked montmorillonite; benzyl alcohol; benzaldehyde; catalytic oxidation Abstract.
SEM photographs of Mont (a), Fe-PILC (b)and Fe/Cu-PILC (c) The Mont has a structure of abundant layers which could be found obviously from the SEM photographs (Fig. 2 (a)).
The original layered structures of montmorillonite were also found from the SEM images of Fe-PILC, Fe/Cu-PILC (Fig. 2 (b) and (c)), it means that the original layered structures of montmorillonite were retained after modification with Fe and Cu.
Conclusions Compared with the raw Mont, the Fe/Cu-cross-linked montmorillonite catalysts have better physicochemical properties and structure.

New Usage for Cyclotrimerization Reaction: a Facile Synthesis of 1,3,5-Triazine Derivatives Mi Ouyang1, Chun-hui Yu1, Ning-yu Zhang2, Qing-bao Song1, Jing-wei Sun1, Bin Hu1 and Cheng Zhang1, a 1State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, PR China, 310014 2Economics College, Shanghai University of Finance and Economics aczhang@zjut.edu.cn Keywords: 1,3,5-Triazine, Steric hindrance, Different peripherals, Electron-injection ability.
The oligomers with star-shaped molecules structure, avoiding the above intractable issue, are being widely used in optoelectronic materials [5].
Among the star-shaped molecules structure, 1,3,5-triazine (hereafter abbreviated as “triazine”) shows excellent optical and electrical properties due to the strong electron-injection ability and high symmetry [6, 7].
On the other hand, the asymmetric structure triazine derivatives with different peripherals are also successfully obtained, which have a potential application in multi-functional optoelectronic materials [7].
Compounds 2i-Me (i=p, m and o) had a similar structure with compounds 1i-Br (i=p, m and o) except the substitution of the bromine atom by methyl (-CH3) group.

Large-Area Self- assembled Monolayer of Silica Microspheres by Convective Assembly WANG Yue-hui Department of Chemistry and Biology, University of Electronic Science and Technology of China Zhongshan Institute, Zhong Shan，528402 email: wangzsedu@126.com Keywords: Self-assembly, silica microsphere, convective assembly, reactive ion etching Abstract.
Intorduction Well-ordered self-assembled mono-/multilayers of micro/nanoparticles attract growing interest for their applications in many fields [1-7], in which many practical devices required monolayers over large areas with ordered structures.
Seen from Fig.1, the self- assembled monolayer of silica microspheres are hexagonal in structure and looks sufficiently uniform and closely-packed.
We reported that the structure of the self-assembled monolayers and their spatial extent were significantly influenced by particle concentration in the suspension, dispersed suspension volume, solvent, coating plate speed, and wedge angle.[7]It's worth pointing out that silicon wafer coated SiN2 must be treated with ethanol before coating, and then immediately began to convective assembly process.
Controlled, rapid deposition of structured coatings from micro-and nanoparticle suspensions.

Due to the addition of Al2O3 contents a large number of oxygen ions are available in glass structure.
It has been observed that as Al2O3 is added to the glasses, packing fraction is able to achieve a higher value and generated a large number of oxygen ions in glass structure. 2.
Kishore, Effect of Bi2O3 content on the optical band gap, density and electrical conductivity of MO-Bi2O3-B2O3 (M = Ba, Sr) glasses, Materials Chemistry and Physics. 90 (2005) 83-89
Hernandez, Structure -property correlations in lead borate and borosilicate glasses correlations in lead borate and borosilicate glasses doped with aluminum oxide, J. 
Ghoshal, Band gap and polarizability of boro-tellurite glass: Influence of erbium ions, Journal of Molecular Structure 1072 (2014) 238-241.

Application of artificial neural network to forecast the tensile fatigue life of carbon material Xiaoling Liaoa , Wenfeng Xub , Zhiqiang Gaoc Chemistry and Environment Science Department, Chongqing University of Arts and Sciences, Chongqing 402160, China a zxc_228@163.com; b xwf_228@163.com; cgzq@cqwu.net Keywords: Artificial neural network, carbon materials, tensile fatigue life, forecast Abstract: Artificial neural network (ANN) is widely applied to the modeling of complex systems, which has become a common modeling method in the study of materials science.
Therefore, there is a need for monitoring the condition or health of a carbon material structure while the structure is in use, in order to minimize hazards.
So we may indirect monitor the evolution of structure damage for fatigued carbon materials composites by measuring the change of electrical resistivity.
The ANN is kinds of new information manage and account system, which has been developed by math abstracting, predigesting and imitating the structure and function of bio-nerve.

Spunlacing is a nonwoven process in which fibers in a web structure are mechanically entangled by high pressure water jets to form a uniform sheet or fabric and its multipurpose functions are consolidation, splitting and pattern structuring.
Spunlacing of all samples was performed on the hydroentangling unit at the pilot facilities of the Ji'an City Sanjiang Superfine fiber nonwoven Co., LTD with pressures ranging from 80 to 200 bars; Needlepunching is a nonwoven bonding technology in which fibers in a web structure are intertwined by needles.
(a) process in 90℃water (b) process in 160 ℃ oven Fig. 6 Cross section of segmented pie filament bundles after thermal treatment Summary Segmented pie spunbond will get lots of excellent properties, including soft handing, compact fiber structure, good barrier and filtration, etc., only if there is a good splitting effect of the filament in fabric.
Geller: Fibre Chemistry.

It can attain special component, structure and surface performance with a variety of physical, chemical, electrochemic, mechanical or electronic technology, and meet special requests of parts [5-6].
They basically are divided into three kinds: surface material structure change hardening, surface material component change hardening and surface material deposition hardening.
Surface material structure change hardening is a kind of metal microstructure process, which happens in hardening surface layer, but neither by pervading any elements for surface component change and nor by adding any materials for apparent surface size change.
In the course of hardening, the element different from base metal is infiltrated into base metal with solid diffusion, and change chemistry composition of surface layer.
It can bring compound and solid solution on parts surface different from metal base structure.

Ag Nanoparticle enhanced Photocatalytic Activity of Rutile TiO2 Films Prepared by Electrostatic Self-assembly Method Feng Pan, Junying Zhang * , Haiying Liu, Tianmin Wang and Weichang Hao Center of Materials Physics & Chemistry, Beijing University of Aeronautics and Astronautics, Beijing 10083, P.
As well known, TiO2 exists in nature with three distinct crystal structures, i.e. anatase, brookite and rutile.
An HL-II Scan probe microscope (SPM) was used to visualize the outermost surface structure of the films.
It indicated that TiO2 and Ag had the same opportunity to contact with the organic, just like the designed structure mentioned above.
Different crystal structure had different SDT. eg. 3 minutes was needed for the sample treated at 450 o C.

The Preparation and Properties of the Low Melting Point Microencapsulated Paraffin Insulation Mortar Jian Zhang1,a, Hua Yan1,b, Shulian Chen1,c, Xuemei Wang1, ZiDi Gu1 1Department of Chemistry and Material Engineering, Logistical Engineering University, Chongqing, 401311, China a125859194@qq.com, byanhuacq@sina.com, cchshul006@yahoo.com.cn Keywords: Microencapsulated paraffin; Insulation mortar; Phase change material; Building saving-energy Abstract.
Introduction The phase change material has been used as a valuable storage material for correcting the mismatch between the supply and demand of energy in building structure components as well as maintaining the indoor temperature close to the established comfortable limit effectively[1-3].
Using fiber can significantly improve the internal structure of insulated mortar, optimize its toughness and enhance its crack resistance.
Because both the construction performance and water-holding performance of the mortar are favorable, it is easy for the mortar to be daubed and bonded in the coarse surface of the building structure.
All of these advantages facilitate the application of thermal insulation mortar to building structures