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Boron-silicon-containing arylacetylene polymer (PBSA) was synthesized through polycondensation reaction among diacetylenebenzene Grignard reagent, boron trichloride and dimethyldichlorosilane, and its structure was characterized by Infrared spectroscopy (FT-IR), Nuclear Magnetic Resonance spectroscopy (13C-NMR).
Synthesis of boron-silicon-containing arylacetylene polymer The structure of PBSA was confirmed by FTIR and 13C NMR spectroscopy, as shown in Fig. 1 and 2.
As shown in Fig. 6 the crystallisation behavior of ceramics derived from PBSA at temperature up to 1450°C,the sharp peaks (2θ=24.6°，2θ=35.8 and 2θ=43.4°，2θ=60.0°，2θ=71.4°) indicated the crystal structures were formed in the ceramic products.
Kakigano, Thermosetting Mechanism Study of Poly [(phenylsilylene) ethynylene-1, 3-phenyleneethynylene] by Solid-state NMR Spectroscopy and Computational Chemistry”.

The area of laser-structured was 2mm×15mm.
Fig. 9 shows that laser structured titanium alloy could improve joint strength greatly compared to non-structured metal.
Mercurio: Composite Structures, Vol. 88 (2009) No.3, pp.333-341
Fink: Composite Structures, Vol. 83 (2008) No.4, pp.368-380
Umaña: Journal of Solid State Chemistry, Vol.18 (1976) No.4, pp.363–368

The findings show that the optimized geometry structure obtained is slightly different with that of measurement data.
Computational Methodology In this present work, all quantum chemistry DFT calculations were performed using Quantum Espresso and Gaussian 09 package programs [10, 11].
Moreover, with employing Gaussian 09 package program, the structure of single C9H7Cl2N5 molecule was selected as host environment as shown in Fig. 2.
Palmer, Structure of methanol solvate: 2,3-Diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine-methanol, 1 novel anticonvulsant drug, Acta Cryst.
Row, Crystal structures and physicochemical properties of four new Lamotrigine multicomponent forms, Cryst.

[a] Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany [b] Inorganic Chemistry Department, Facility of Chemistry, Moscow State University, 119899, GSP3, Moscow, Russia [c] University of Bayreuth, Laboratory of Crystallography, Universitätsstrasse 30, D-95440 Bayreuth, Germany *E-mail: r.dinnebier@fkf.mpg.de Abstract A set of macros for the powerful least squares and global optimization program TOPAS has been written in order to create a user friendly interface to the maximum entropy method (MEM) program BayMem.
In this method, the structure model is iteratively improved by replacing the values of the calculated structure factors (Fcalc) from Rietveld refinement by the corresponding values of the observed structure factors Fobs obtained from MEM calculations.
No structure refinement of peroxide-containing apatite was found in the literature.
for Sr5(PO4)3OH structure containing 10% of peroxide.
Structure Determination from Powder Diffraction Data.

Kim 2 1 L.Ya.Karpov Institute of Physical Chemistry, Vorontsovo pole, 10, 105064, Moscow, Russia 2 Korea Institute of Energy Research, 71-2 Jang-dong Yooseong, Daejeon, Republic of Korea a E-mail: politova@cc.nifhi.ac.ru, bE-mail:jssung@kier.re.kr Keywords: perovskite, mixed ionic-electronic conductivity, oxygen permeability Abstract.
The structure, microstructure, electric transport and oxygen permeation properties of (La,Sr)(Ga,Mg,Fe)O3-δ ceramics with perovskite or brownmillerite structures have been studied.
The perovskite-type structures provide good conditions for oxygen ion transport.
Results and discussion The X-ray diffraction patterns confirmed the formation of pure perovskite structure solid solutions I (Fig.1).
The monoclinic structure with the unit cell parameters a=7.811, b=5.508, c=5.51 A, and space group I2/a was revealed at room temperature.

Effect of Water Chemical Corrosion on Strength and Cracking Characteristics of Rocks- A Review Xia-Ting Feng1,2, Shaojun Li1, and Sili Chen2 1 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, P R China 2 Northeastern University, Shenyang 110004, P R China Keywords: Chemical corrosion, Granite, Sandstone, Tensile strength, Compressive strength, Cracking characteristics ABSTRACT Study of effect of water chemistry corrosion on strength and cracking characters of rocks is an important aspect to improve long-term stability of rock engineering and increase efficiency of geothermal and petroleum developing.
Acoustic emission behaviors of microfracturing process of rocks under chemical corrosion have temporal fractal structures [10] and can be described by neural network models [11-14].

The TiO2 films prepared by this method had various structures: particulate-flat structure and sphere-flat structure.
Among these structures, spherical structure of TiO2 films are generally used for light harvesting because of their large surface area and high surface permeability [4].
The TiO2 with horizontal orientation of substrate shows double layer of sphere-flat structure and TiO2 with vertical orientation shows double layer of particulate-flat structure.
TiO2 film with horizontal orientation shows double layer of sphere-flat structure and TiO2 with vertical orientation shows double layer of particulate-flat structure.
The Royal Society of Chemistry 2012

Structure reliability is affected by corrosion under both static and dynamic actions.
In particular, wrought iron alloys were widely used in the past for metal structures.
However, the most used approaches can be grouped in two families: the first level models, founded on laws of physics and chemistry, that interpret the phenomenon starting from the parameters upon are based on and the second level models, obtained from observation and interpolation of experimental data, opportunely examined from a statistical point of view.
Codes give guidelines to calculate the corrosion depth for metal structures.
Landolfo, Time–Dependent Corrosion Wastage Model for Wrought Iron Structures.

Pure cubic fluorite structure YSZ was achieved by both micrograined and nanograined YSZ sintered at 1200°C and 1500°C.
Thus, the unwanted phase transformations can be prevented through doping of ytrria (Y2O3) that stabilizes the crystal structure of zirconia and increases the oxygen vacancies, therefore improving the ionic conductivity [7,8,9, 10].
Summary Commercial N-YSZ and M-YSZ with pure cubic fluorite structure were successfully sintered at 1200°C and 1500°C.
Feng, The effect of powder grain size on the microstructure and electrical properties of 8 mol%Y2O3-stabilized ZrO2, Royal Society of Chemistry Adv., 7 (2017), 39153-39159
Cervera, Structure and conductivity of NiO/YSZ composite prepared via modified glycine-nitrate process at varying sintering temperatures, Ceramics International Journal 43 (2017) 16174-16177.

Synthesis and Characterization of SnS Flake-like Microcrystals with a Microwave Hydrothermal Processing Zhang Pei-peia, Huang Jian-fengb, Cao Li-yunc and Wu Jian-pengd Key Laboratory of Auxiliary Chemistry & Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi’an Shaanxi, 710021, China azhangpei.comp@yahoo.com.cn, bhuangjf@sust.edu.cn (corresponding author), ccly408@163.com, dwujianpeng@sust.edu.cn Keywords: SnS microcrystals; Microwave hydrothermal; Flake-like; Optical properties Abstract.
Results show that the SnS powders present a herzenbergite-type orthorhombic structure and free of secondary phases.
Importantly, tin sulfide is a layered semiconductor with orthorhombic structure, and SnS exhibits both the p- and n-type conduction depending on the concentration of tin.
Fig.2 (a) is a typical FE-SEM image of the product, which displays a flower-like structure.
Absorption at 360 nm is probably related to self-assembly SnS flower-like structure assembled by nanoflakes, while absorption at 780 nm may be caused by the sulfur vacancy defects in the SnS crystal.