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Study on direct acid leaching vanadium without grinding and roasting from clay vanadium ore in Hunan HE Weia, YE Guohuab*, TONG Xiongc Faculty of Land Resources and Engineering, Kunming University of Science and Technology, Kunming 650093, China awodedaxuehpu@126.com, bghye581@yahoo.com.cn, Cxiongtong2000@yahoo.com Corresponding author: YE Guohua E-mail: ghye581@yahoo.com.cn Key words: clay vanadium ore; direct acid leaching; vanadium extraction; leaching rate Abstract：A new technology of direct acid leaching vanadium without grinding and roasting was put forward, and the effects of leaching factors including dosage of sulfuric acid, type and dosage of assistant leaching agent, leaching time and temperature, liquid-solid ratio on the vanadium leaching rate were systematically investigated.
Aiming at the properties of clay vanadium ore and shortages of the existing vanadium extraction technologies, a new technology for extracting vanadium by acid leaching without grinding and roasting was put forward in this paper, and the effects of factors on leaching rate of vanadium were investigated in detail to provide a benefit to scientific research work of vanadium extraction and exploitation of clay vanadium ore. 1 Experimental 1.1 Materials The raw sample was taken from the Mayang District in Hunan Province of China, and the raw ore properties analysis and leaching experimental study was carried out after the raw sample was crushed into particles of size of -2mm.

A Flush-mounted Resonant Ice detection sensor with High Sensitivity Qiang Shi1, a, Junbo Wang1, b, Deyong Chen1, c and Yanlong Shang1, d 1 State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, No. 19 Beisihuanxi Road, Beijing, China. 100190 ashq_victory@163.com, bjbwang@mail.ie.ac.cn, cdychen@mail.ie.ac.cn, dShangyanlong09@mails.gucas.ac.cn Keywords: Ice sensor; Flush-mounted; Ice detection; Piezoelectric resonator; High sensitivity Abstract.
Olson, Elements of Acoustical Engineering, D.
Timoshenko, Mechanics of Materials.

Materials and Methods Study area.
Acknowledgements This study was supported by the National Key Technology R & D Program (Grant No. 2011BAC09B07-2).
Zhao,Ecological Engineering.

Materials and methods Microorganism strains and culture conditions Gluconacetobacter hansenii strain CGMCC1671 and Saccharomyces cerevisiae strain CGMCC1670 were isolated from traditional Kombucha, and identified in this lab and conserved as CGMCC1671 and CGMCC1670 respectively in China General Microbiological Culture Collection Center.
Results Single factor test a b c Figure 1a shows that medium volume was one of the key parameters determining the BC yield.
Khan, et al: Korean Journal of Chemical Engineering Vol. 26(2009), p. 1689-1692 [14] Y.

System Analysis and Design of Gripping Device for Wafer Transfer Robot Peng Zhang1, a, Xianwen Zhuang1, b, Lina Hao1, c, Hongtao Liu1, d 1School of Mechanical Engineering and Automation, Northeastern University, China a z.pyj@163.com, b wonderdsr@163.com, c neuhaolina@163.com, dlht6059198@163.com Keywords: IC manufacture, Wafer transfer robot, End effectors, Edge gripping devices Abstract.
Wafer transfer robots are key facilities of IC manufature equipment which are used to transfer and position wafers between working procedures.
To avoid damage and pollution during contact, designers should choose local contact method and materials that release fewer particles.

Conceptual Design, Thrust Test, and Finite Element Analysis of a Tip-jet Rotor using a Small Turbo-jet Engine Nam Seo Goo 1, a, Hoon Cheol Park1,b and Kwang Joon Yoon1,c 1 Department of Aerospace Engineering, Artificial Muscle Research Center, Konkuk University 1 Hwayang-dong, Kwangjin-gu, Seoul 143-701, Republic of Korea a nsgoo@konkuk.ac.kr, bhcpark@konkuk.ac.kr, ckjyoon@konkuk.ac.kr Keywords: Tip-jet rotor, Anti-torque, Finite element analysis Abstract.
For the isotropic material, the von Mises stress is considered and the directional stress for the composite material.
Key design parameters for the duct system are found and tested for an optimally performing power system.

The flavor property of soft cheese fermented by two stains of Streptococcus thermophilus and made of reconstituted milk Yanhua Li, Lanwei Zhanga, Weijun Wang, Lili Zhang, Xue Han, Yuehua Jiao School of Food Science and Engineering, Harbin Institute of Technology, Harbin 150090, P R China awilkinghigh@yahoo.com.cn Keywords: Streptococcus thermophilus, Soft Cheese, Volatiles, Reconstituted Milk.
Materials and methods Pasteurized reconstituted milk.
Acknowledgements The work was financially supported by Key Projects in the National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (No. 2006BAD04A06).

Kummel1,2,a 1 Materials Science and Engineering Department University of California, San Diego 9500 Gilman Drive La Jolla, CA 92093, USA 2 Department of Chemistry and Biochemistry University of California, San Diego, San Diego 9500 Gilman Drive La Jolla, CA 92093, USA 3 Department of Physics Texas State University, 601 University Drive  San Marcos, TX 78666, USA a akummel@ucsd.edu Keywords: InGaAs (110) surface, atomic hydrogen, native oxide removal, scanning tunneling microscopy Introduction A major obstacle facing III-V semiconductor based metal oxide semiconductor field effect transistors (MOSFETs) is the large density of trap states that exist at the semiconductor/oxide interface.[1] These trap states can pin the Fermi level preventing the MOSFET from acting as a switch in logic devices.
[2] Hasegawa, H., et al., Surface passivation of III–V semiconductors for future CMOS devices—Past research, present status and key issues for future.

Evaluation of Pulsed Laser Deposited Li4Ti5O12 Thin Film Anodes by CV and EIS Jianqiu Deng1,2,a, Zhouguang Lu3,b, Chiyuen Chung3,c, Zhongmin Wang1,2,d and Huaiying Zhou1,2,e 1Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China 2School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China 3Department of Physics & Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China ajqdeng@guet.edu.cn, bzglucsu@gmail.com, cappchung@cityu.edu.hk, dzmwang@guet.edu.cn, ezhy@guet.edu.cn Keywords: Rechargeable lithium ion batteries, Lithium titanate, Thin film electrode, Cyclic voltammetry.
It is frequently used in the electrochemical characterization of the reversibility/irreversibility, ion diffusion kinetics and cycleability of active materials.
Zhou, Preparation and rate capability of Li4Ti5O12 hollow-sphere anode material, J.
Perfetti, et al., High-resolution in-situ structural measurements of the Li4/3Ti5/3O4 "Zero-Strain" insertion material, J.
Chen, Spinel Li4Ti5O12 as a reversible anode material down to 0 V, J.

Applications of Photonic Crystals in Solar Cells Yu Hao1, a, XiaoHong Sun1,b, LiuDi Jiang2,c ,Xu Zhang1,d,GaoLiang Wang1,e 1Henan Key Laboratory of Laser and Opto-electric Information Technology, Zhengzhou University, Henan, 450052, China 2Engineering Sciences, Faculty of Engineering and the Environments, University of Southampton, SO17 1BJ, United Kingdom ahao66699@126.com,biexhsun@zzu.edu.cn ,cL.Jiang@soton.ac.uk,diexuzhang@zzu.edu.cn ewanggaoliang1314@126.com Keywords: photonic crystals,solar cells, absorption,conversion efficiency.
A Photonic Crystal (PC) is a periodic arrangement of dielectric or metallic materials with a lattice constant comparable to the wavelength of an electromagnetic wave.
An One-dimensional photonic crystal has dielectric constant that periodically changes in one direction of the space.One-dimensional photonic crystal usually consists of one or two materials with different dielectric constants.The thickness of each material has to fulfill a certain law.
The materials for PC reflectors in solar cell have no absorption of the incident light.We can also make the absorption layer have a photonic crystal structure.Different from reflectors, the materials for PC absorbers have a good ability to absorb and convert the sunlight,such as Si ,a-Si.
PCs made of specific materials have been introduced into solar cells,they act as reflectors,absorbers,and window layers.Using band gap effect of PCs and the strong scattering of light ,photons propagation path could be prolong, their life time will be extended,too.This structure can greatly increase the absorption of the solar cells within a specific band of light which lead to an enhancement of the over all conversion efficiency.