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The Quantitative Structure Activity Relationship (QSAR) was used to correlate eleven physical and chemical properties (GTCi, Vc, BP, MP, Hf, Tc, Pc, MW, MV, logKOW and logKOC) with toxicity of polycyclic aromatic hydrocarbons (PAHs).
QSAR (Quantitative Structure Activity Relation-ships) was used to model molecular activity from chemical structure and properties [4].
MW, MV, logKOW, logKOC were collected from CRC Handbook of chemistry and physics.
Research on Biotoxicity and Quantitative Structure-Activity Relationships of Heavy Metals and Polycyclic Aromatic Hydrocarbons in Soil to Photobacterium Phosphoreum [D].

At the Institute of Lightweight Structures, extensive investigations are carried out into material development and optimization of the associated process technology.
At the Institute of Lightweight Structures, extensive investigations are carried out into material development and optimization of the associated process technology.
Fig. 1: “Hybrid coupling sleeve” The research results were developed at the Institute of Lightweight Structures at Chemnitz University of Technology in cooperation with Schönborner Armaturen GmbH as part of the KNVB research network with funds from the Federal Ministry of Food and Agriculture (Bundesministerium für Ernährung und Landwirtschaft - BMEL).
The comparison provides information on the influence of the process structure (addition points), the type of fibre semi-finished product and the parameters during compounding.
[3] Zhang, Y. et al.: Mechanical and thermal properties of basalt fibre reinforced poly(butylene succinate) composites; Materials chemistry and Physics 2012, 133, 84-849

Nanoparticles and nano-structures of copper have various utilities in the field of photocatalytic and sensor applications.
They observed the maximum photocurrent density of 2.6 mA/cm2 at 0.95 V/SCE in the hetero-structure of Ti-Fe2O3/Cu2O [7].
Sharma et. al. observed the CuO-TiO2 nano-composite structure exhibits moderate absorbance in UV-Visible range [8].
They have found that the pyramid structure of CuO phase thin film shows highest sensitivity [9].
Md Shakaff, Procedia Chemistry Vol. 20 (2016), pp.45-51 [10] S.

Fabrication and Micro-structure Characterization of Al2O3/Ni-P Composites with Interpenetrating Phases J.
This factor varies between 0 and 1 for a completely dispersed to a fully agglomerated structure.
It is equal to 1 when one phase is fully surrounded by the other and 0 for fully interpenetrated structures.
Fabrication of the interpenetrating structure in this way at temperatures higher than 870 o C is impossible.
However, the level of continuity in the investigated structure varied.

Preparation and Characterization of N-Octyl Pyridine Tetrafluoroborate Peng Tian1,a*, Yanhong Kang1,a, Liyan Liu1,a, Jie Lu2,b 1College of Chemistry and Life Science, Shenyang Normal University, Shenyang 110034, China 2Laboratory Centre, Shenyang Normal University, Shenyang 110034, China aemail: tianpenglnu@sina.com, bemail: whlie64@yahoo.com.cn Keywords: OP-BF4; room temperature ionic liquids; preparation; characterization Abstract: Ionic liquids combine a set of proper ties like non-flammability, non-volatility, high ionic density and intrinsically high ionic conductivity; they also behave as good solvents for various chemical and electrochemical processes.
The halogenated hydrocarbon and pyridine are used in the preparation of room temperature ionic liquid intermediates bromided N-octyl pyridine OPB, and the intermediate infrared spectrometer are used in chemical structure characterization, so it is determined that the product is the room temperature ionic intermediates OPB.
Infrared spectrometer for the structure characterization is used, it is proved that OP-BF4 room temperature ionic liquid has been gotten.
The halogenated hydrocarbon and pyridine are used in the preparation of room temperature ionic liquid intermediates bromided N-octyl pyridine OPB, and the intermediate infrared spectrometer are used in chemical structure characterization, so it is determined that the product is the room temperature ionic intermediates OPB.
Infrared spectrometer for the structure characterization is used, it is proved that OP-BF4 room temperature ionic liquid has been gotten.

Surface Modification of Polyester Fibers by Encasing Sucrose Ester and Grafting Soybean Protein Suhua Gao1,a, Guangxian Zhang1,b*, Fengxiu Zhang2,c 1 College of textiles and garments, Southwest University, China 2 School of chemistry and chemical engineering, Southwest University, China a3965536@qq.com,bzgx656472@sina.com, czhangfx656472@sina.com * Corresponding author Tel.:+0 86 02368251681; fax:+086 02368251228 .E-mail address: zgx656472@sina.com.
Surface morphology and structure of the fabric were studied by SEM,FT-IR,XRD,DSC.
The results showed that the surface of polyester fiber was covered by SE and soybean protein overlay film, the encased sugar ester and grafted soybean protein fiber had little change on structure, and the proper grafting temperature was 100˚C, time 30min.
Structure analyses.
This showed the structures of the three kind polyester fibers didn’t change. ..

Fig. 1 shows the cell structure of PU foam.
Fig. 1: Fundamental concept of Polyurethane foam cell structure (SEM x200) [4].
The types of FR actions depend on the types of phosphorus compound, the chemical structure of the polymer and the fire exposure condition.
To perform as a considerably functional FR, nitrogen FR needs a good chemistry between the polymer material and nitrogen itself, which is one of the major drawbacks of its application [20].
Clay also shows rich interrelation chemistry and can be easily organically modified for polymer application.

The morphology and structure of the coatings were analysed using scanning electron microscopy (SEM) and X-ray diffraction (XRD).
The main orientation of the structure of Ti, TiN and TiCrN deposits is very strong according to the plans (200).
Shukla et al [15] reported that the preferred orientation of the Ti and TiN films structure is (200) planes.
Yan, Comparison of tribological and electrochemical properties of TiN, CrN, TiAlN and a-C:H coatings in simulated body fluid, Materials Chemistry and Physics 158 (2015) 74-81 [9] S.
Fathi, Corrosion and tribocorrosion behavior of Ti/TiN PVD coating on 316L stainless steel substrate in Ringer's solution, Materials Chemistry and Physics 148 (2014) 614-623 [17] W.Y.

In order to use such theory and to analyze how the cracked soils effect on retaining structure, we developed an elastoplastic finite element program.
It involved lots of subjects, such as physics, chemistry, mechanics, mathematics, materials science, engineering science and so on.
During pit excavation, tensile stress zones will develop in the ground surface behind the retaining structure.
To some extent, the existence of these fissures may affect the deformation and earth pressure of the retaining structure.
The cracks that occur in the ground surface behind the retaining structure are usually mode I or a combination of mode I and II.

Synthesis and Characterization of a Novel Cationic Type Asphalt Emulsifier Laishun Shia, Jingjing Chen, Meijie Sun, Ying Wang, Shujie Lin, Yifan Zhang School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250061, China aemail: LSHUNSH@sdu.edu.cn Keywords: Nonyl Phenol; Asphalt; Emulsifier; Cationic; Synthesis Abstract.
The structure of the emulsifier was identified by FTIR.
The chemical structure of the product was characterized by FTIR.
Therefore, the FTIR spectrum agrees with the chemical structure of the product.
Gemini Cationic Surfactants: Synthesis and Influence of Chemical Structure on the Surface Activity[J].