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Study on the Preparation and Micro Structure of the Mg Containing Porous HA with Ultra-Fine Grain Xingyi LI1,2,a，Xiangcai MENG2，Guoquan LIU 1，Shidan YUAN 2,b 1 College of Materials Science and Engineering, Beijing University of Science and Technology,Beijing, China 100083 2 College of Materials Science and Engineering, Jiamusi University,Heilongjiang, China 154007 a jmsdxlxy@163.com, biambetter23@163.com Key words：：：： Chemical Precipitation, Hydroxyapatite, Magnesium Abstract.
The paper deals with the preparation and micro structure of the Mg containing porous HA with ultra-fine grain.
It is clear that grain size of nano HA powder prepared by chemistry precipitation method is 50nm whereas over 1µm of pure HA treated at high temperature of 1200℃, but grain size of hydroxyapatite in porous HA still maintained at the nanometer level at 1200℃, which indicated that the magnesium was not only a good hole creator, but also played the role of impediment crystal growth function.

Two kinds of proton exchange membranes (PEMs) containing POSS are designed and prepared, one is sulfonated poly(ether ether ketone) (SPEEK)/bisphenol S diglycidyl ether (DEBS)/POSS hybrids with the semi-interpenetrating polymer networks (IPNs) structure and the other is sulfonated polyimides (SPI)/POSS hybrids with cross-link structure.
IPNs should be more contributed to improve the proton conductivities of PEMs than cross-link structure.
Manufacturing Nafion membranes is, however, particularly expensive and the constraining chemistry of fluorine is going against the requirement for environmental protection.
With comparison between SPEEK/DEBS/POSS and SPI/POSS, it could be found that IPNs structure should be more contributed to improve the proton conductivities of hybrids than cross-link structure.
The proton conductivity of the membrane is sencitive to its micro-morphology in nano-scale; the semi-interpenetrating polymer networks (IPNs) structure should be more contributed to improve the proton conductivities of hybrids than cross-link structure.

Structure and Phase Composition of Ceramics Made of Powder Obtained by Chemical Dispersion of V95 Alloy Dmitriy A.
The periodicity of the structures and parallel columnar crystals should be also noted.
The periodicity of the structures and parallel columnar crystals should be also noted.
Omarov, The structure and phase composition of a new ceramic material, New Refractories. 12 (2012) 31-35
Malkova, Synthesis and progress of powders in the MgO – Al2O3 system obtained by the sol-gel method, Advances in Chemistry and Chemical Technology. 8(56) (2005) 36-40

Depending on the alloy chemistry and amount of time spent at a temperature above Tx (in the nose region of the curve), there could be (i) complete glassy structure, (ii) partial glassy structure or (iii) complete crystalline structure (no glass).
A step by step method is described aimed at the design of new nucleates by understanding the basic crystal structure and chemistry of evolving ductile phase.
Ma, Atomic-level structure and structure–property relationship in metallic glasses.
Materials Chemistry and Physics, 2011. 129(1): p. 547-552
Materials Chemistry and Physics, 2005. 93(1): p. 174-177

N is the cycles matching with the fatigue limit of a structure or material.
Verification on the improved shoe structure.
Under this method, a fatigue evaluation has been conducted on the shoe structure.
The fatigue life of the original structure has been showed accurately.
[5] Xingui Liu: Contact Shoe Arm Analysis Report (Metals & Chemistry Research Institute, China Academy of Railway Sciences, China 2009)

Ltd, China, its molecular structure formula is shown in Fig.1; MeTHPA as an anhydride curing agent was purchased from RuGao curing manufactory, Jiangsu province China; nmSiO2 (average grain diameter 305nm, ratio surface area 16020m2/g) treated with silane coupling agent was purchased from Zhejiang Hongsheng Material Technology Co.
Fig.1 Molecular structure formula of the epoxy resin Synthesis of nanocomposite The nanocomposites have been synthesised by the following procedures: The liquid epoxy resin (E44, bisphenol-A type) were placed in a beaker, and different loadings (0, 1, 5, 7 phr (parts per hundred of epoxy resin)) of nmSiO2 were added to the melted resin on 40, stirred the reaction mixture vigorously with a magnetic stirrer.
Pinnavaia: submitted to Chemistry of Materials (1995) [5] I.J.
Wei: submitted to Chemistry of Materials (2001) [7] Y.

Performance of the self-breathing air direct methanol fuel cell with modified poly (vinylidene fluoride) grafted onto a blended polystyrene sulfonated acid (m-PVDF-g-PSSA) Membranes Guibao GUO 1,a, Ruihua Jie 1,b and Shengli AN 2c* 1School of Chemistry and Chemistry Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, Inner Mongolia, P.R.
Tentative molecular structure of m-PVDF-g-PSSA membrane Fig.1.
Structure formulas of the polymers used are depicted in Fig. 2.

On the Feasibility of Applying Electric Field to Increase Oil Recovery in Old Oil Field Chunhong Nie College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, China,163318 chunhongnie@126.com Keywords: electric field, improve oil recovery rate, high and stable yield Abstract.
Rock skeleton inherently has natural electric field in reservoir porous medium in which liquid solid interface exists double layer structure, so that the liquid in porous media produces flow potential when it flows.
In the oil-water two-phase fluid flow, when crude oil and water containing dissolved salts stimulated by direct current field, the cation of movable sub-layer in double-layer structure will move to the cathode by taking away water molecules.
China (project No. 21376049) and Provincial Key Laboratory of Oil ＆Gas Chemical Technology, College of Chemistry ＆ Chemical Engineering, Northeast Petroleum University, China.

Yanb Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming 650031, PR China zhaojishou@163.coma, yanli5901@126.comb Keywords: Palladium, Pressure Cyanide, Dissolution Kinetics Abstract.
The investigation of the CN- species adsorbed on transition metals is significant as a basis for its chemistry fundamental interest of large-scale industrial processes such as the synthesis of HCN and in the context of catalytic automotive converters.
During dissolution like the reaction of gold, atoms may leave the crystal structure and enter the electrolyte along various pathways: (d)→(a); (d) →(c) →(a), or(d) →(c) →(b) →(a).The slow kinetics observed for Palladium dissolution and its response to activation suggests similar processes may be rate limiting.
(2) The dissolution mechanism involves the structure and bonding mechanism of cyanide adsorbed on palladium atom, cyanide and oxygen concentration.

R. of China 2 Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P.
Results and discussion Synthesis and characterization of monomer and copolyimides Scheme 1 Synthesis of monomer As scheme 1 shown, the DMAPB monomer was synthesized through two steps and the structure was confirmed by 1H NMR(Fig. 1), FT-IR, and elemental analysis.
The chemical structure of sulfonated polyimide was confirmed by FT-IR spectroscopy.
Sabharwal, Radiation Physics and Chemistry Vol. 80 (2011), p. 803 [13] V.