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Research on leakage fault diagnosis and its simulation for control valve of mixed gas Yuerong Zhang1,2,a，Yong Wang1,b 1 School of Mechanical Engineering，Shandong University，Jinan 250061 2 Chemistry and Biology College，Yantai University，Yantai 264005 a zyr_blue@163.com, bmeywang@sdu.edu.cn Keywords: Control valve, Leakage, Fault diagnosis, Simulation Abstract.
Fig. 1 Structures of the valve Introduction In the Cycle Power Generation Project of mixed gas，control valves regulate pressure pulsation avoiding breakdown of the power unit.
Augment of structure size results in breaking leak tightness for increasing flow to improve the lower calorific value [[]W.S.

Preparation of Nano-fibrous poly(L-lactic acid) scaffold with hierarchical pores Wang Xuejun1, a, Lou Tao1,b and Song Guojun1,c 1 College of Chemistry, Chemical Engineering & Environmental Science, Qingdao University, Qingdao 266071, China awangxjlt@yahoo.com.cn, btaolou72@yahoo.com.cn, csongguojunqdu@126.com Keywords: PLLA; nano-fibrous; scaffold; hierarchical; pore size.
The collagen structures, referred to as extracellular matrix, vary in size from 50-500 nm as fiber bundles [3, 4].
Fig. 1(e) shows the structure of the equal mixture of 4 different salt size which is evenly distributed in the scaffold.

The Research of Angle Measurement between Cone and Support Rods Located at ICF Target Xiaojie Xu a Xiyan Dong b School of Physics & and Chemistry Henan Polytechnic University, Jiaozuo, 454000, China axuxiaojie2002@hpu.edu.cn b dongxiyan0720@hpu.edu.cn Keywords: Cone target measurement, Projection method, Edge detection Abstract: Aiming at the installation location measuring requirement of cone rod located at some kind of laser target for inertial confinement fusion, a non-contact five-coordinate measuring machine is exploited and built.
Its size, structure and chemical composition have a direct impact on the absorption and coupling of laser, as well as the uniformity and symmetry of implosion fusion during the course of shooting the laser target.
In the following sections, we introduce several issues including the measurement principle of projection method and the overall structure of experiment platform.

The Occurrence Modes of Tantalum-Niobium Tailing Mine in Jiangxi Province Yue-Long LIU1,a and Jia LIU2,b 1School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China; 2 Department of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang330099, China ae-mail: lylgyx@163.com, be-mail:704604371@qq.com Keywords: Tantalum-Niobium; Tailing mine; Lepidolite;Granite.
X-ray powder diffraction (XRD) analysis was performed using a D/MAX2550VB/PC X-Ray diffractometer (Shimadzu) using Cu Ka radiation at 40kV and 40mA for the crystal structure determination of tailing mine, XRD patterns were recorded using Cu Ka radiation (λ=0.15478nm) in the 2θrange from 100 to 800 with a step size of 0.020 and a scan speed of 2-40/min,the XRD patterns for rough tantalum-niobium tailing mine is shown in Fig. 3.
The 2M2 form is a transited or a mixed structure.

Flame Retardancy of Lanthanum Phosphinate in Combination with intumescen flame-retardant in polypropylene Cong Liu a School of Chemistry and Environment, South China Normal University, Guangzhou China aliucong_011@163.com Keywords: Flame retardancy; polypropylene (PP); Intumescent; Metal phosphinate Abstract.
Results and discussion 3.1 Characterization of LaPi Fig. 1, FTIR spectra of phenylphosphinic Fig. 2, Chemical structure of LaPi acid(a) and LaPi(b) LaPi was synthesized by using lanthanum salt and phenylphosphinic acid as raw materials.
The chemical structure of LaPi showed in Fig.2. 3.2 Thermogravimetric analysis (TGA) TGA can serve as a useful indicator of polymer decomposition and flammability behaviour[6].

Synthesis of Nanocrystalline FeVO4 and Its Visible-light Photocatalytic Activity Yi Tonga, Peisong Tangb Department of Chemistry, Huzhou Teachers College, Huzhou 313000, P.R.
The FeVO4 with a typical ABO4-type structure has many application fields, such as luminescent, piezoelectric and ferroelectric materials because it was found to bear a much narrow band gap and showed efficient visible-light photocatalytic activity.
Ymamamoto: Hydrothermal Synthesis, Crystal Structure,and Magnetic Properties of FeVO4.

Biofilm Formation on NiTi Surface by Different Strains of Sulphate Reducing Bacteria (Desulfovibrio desulfuricans) Beata Cwalina1,a*, Weronika Dec1,b*, Wojciech Simka2,c, Joanna Michalska3,d and Marzena Jaworska-Kik4 1Environmental Biotechnology Department, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland 2Department of Inorganic, Analytical Chemistry and Electrochemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland 3Institute of Materials Science, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland 4Departament of Biopharmacy, Medical University of Silesia, Division of Pharmacy, Narcyzów 1, 41-200 Sosnowiec, Poland a*beata.cwalina@polsl.pl, b*weronika.dec@polsl.pl, cwojciech.simka@polsl.pl, djoanna.k.michalska@polsl.pl Keywords: biofilm; sulphate reducing bacteria; Desulfovibrio desulfuricans; NiTi alloy.
Different structures of biofilm were observed depending on bacterial strains (due to their various metabolic activity) and character of alloy surface (grinded, electropolished).
Different structures of biofilm were observed depending on bacterial strains (due to their various metabolic activity) and character of alloy surface (grinded, electropolished).

Earlier studies showed that char formation during degradation is an important aspect of the fire retardancy of polymers [6], which depend on the polymer structure.
Experimental Materials Poly(hexamethylene adipamide) (PA 66), in granules, and melamine polyphosphate (MpolyP), used as flame retardant, were supplied by DSM (for chemical structures see Fig. 1).
Warrington: Thermal Analysis- Techniques & Applications (Royal Society of Chemistry, Cambridge 1992).

Physical method includes crushing method and structure method.
Zhen Shuiling, Super-fine Crushing, Chinese Structure Industry Press, Beijing, 1999 [6].
Xiong Rengeng and You Xiaozeng, Mechanical Chemistry and Its Application, Huaxue Tongbao, 1995, 4, pp7

Introduction Wood is a nature polymeric material with a complicated structure [1], which is used in broad field.
In Fig. 1(b), all visible peaks can be attributed to the calcite crystal structure, it is proved that has only one single-phase calcite in the CaCO3-wood composite, and about peaks of wood not appeared.
Fig. 2 FTIR spectroscopy is one tool that can be used to determine changes in chemistry at the composite materials surface after mineralization, Peaks that appear on the spectra can be assigned to functional groups present at the composite surface.