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Construction of massive infrastructure in offshore environments necessitates the use of appropriate corrosion resistant materials such as “stainless steels”.
A proper understanding of the corrosion properties of these materials of construction is vital to allow facilities to be designed with sufficient lifetime to provide the required service and avoid any potential for environmental impact which may arise from premature failure in these maritime locations.
This is a complex environment, susceptible to corrosion, and it is difficult to make corrosion predictions due to the continual change in parameters such as temperature and dissolved salt concentration, which are key determinants of the corrosion behavior.
Johansson, The Potential of Integrating Wind Power with Offshore Oil and Gas Platforms, Wind Engineering, 34 (2010) 125-137
Kelly et al, Electrochemical Techniques in Corrosion Science and Engineering, Marcel Dekker, Inc., New York, 2003, chapter 7

Materials and methods 2.1.
The PCR products were cloned into the vector pGEM-T (Promega) and sequenced using an automatic ABI 377 sequencer (Perkin Elmer Applied Biosystems, Forster City, CA, USA) by Shanghai Sangon Biological Engineering Technology and Services Co., Ltd.
Fig. 5 Escherichia coli strains engineered to accumulate β-carotene (A), δ-carotene (B) and ε-carotene (C), were cotransformed with the AaCCD1 constructs.
Weiping Zhu (Hunan Agricultural University, Changsha, China) for providing plant material.
This work is supported by National Science Foundation of China (No. 30700058) and Scientific Research Fund of Hunau Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop (No. 2009011).

Enhanced column bioleaching of copper sulfides by forced aeration Mingqing Huanga, Yiming Wangb*, Shenghua Yinc, Aixiang Wud School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, P.
From then on, forced aerations have been applied in series of bioleaching practices worldwide and regarded as a key technology to enhance the bacterial leaching of sulfides[7-9].
Materials and methods Mineralogy.
When the aeration rates are higher than 60 L/h, Cu leaching rates increase dramatically on day 4~20.These phenomenon attributes to mineralogy of the raw materials.
Sandström, Acidic sulphate leaching of chalcopyrite concentrates in presence of pyrite, Minerals Engineering. 24 (2011) 381-386.

Isolation, Identification and Characterization of heterotrophic nitrifying bacteria from surface water Zhang Duoying1, 2,a, Li Weiguang1,3,b, Qin Wen1,c , and Huang Xiaofei1,d 1 School of Municipal and Environmental Engineering, Harbin Institute of Technology, 73 Huanghe Road, Harbin, Heilongjiang 150090, PR China 2 Department of Food Science and Environmental Engineering, East University of Heilongjiang, 331 Xuefu Road, Harbin, Heilongjiang 150086, PR China 3 State Key Laboratory of Urban Water Resource and Environment, Harbin, Heilongjiang 150090, PR China aduo0314@163.com bhitlwg@126.com, cqinwenshehe@126.com d hxf7777@126.com Keywords: ammonium, heterotrophic nitrifying, bacteria, surface water Abstract.
Materials and Methods Materials and culture solution.

Enzyme-catalyzed synthesis of microalgae-derived biodiesel using a chemically modified immobilized lipase Chunhua Yin 1,a, Na Miao1,b, Shouli Yuan1,c, Xue Dong 1,d, Hai Yan1,e 1Department of Biological Science and Engineering, School of Chemical and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China achyin@sina.com, belizamiaozi@163.com, cyuanshouli123@163.com, ddxzcg521@163.com,ehaiyan@ustb.edu.cn Keywords: Lipase, Biodiesel, Modification, Microalgae.
Materials and methods Materials.
Acknowledgements This work was financially supported by the State Key Development Program for Basic Research of China (2007CB714304) and science and technology innovation foundation for the university or college students.

Clean Oxidation of Cyclohexanone to Adipic Acid Catalyzed by Ammonium Phosphomolybdate with Dawson structure under microwave irradiation Cao Xiaohua1,2,a, Ren Jie1,b, Xu Changlong2,c, Xie Baohua2,d, Sun Desi2,e 1College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou Zhejiang 310014, China 2College of Chmeical and Environmental Ehgineering, Jiujiang University, Jiujiang Jiangxi 332005, China a caoxiaohua@tom.com, b Renjie.R@263.net, c xch139@163.com, djjxbh@yahoo.com.cn, essddss15@163.com Key Words: (NH4)6P2Mo18O62; adipic acid; cyclohexanone; hydrogen peroxide; microwave irradiation Abstract: Ammonium Phosphomolybdate with Dawson structure was prepared by hydrothermal synthesis and characted by means of FT-IR, UV-Vis,XRD and SEM.
Experimental Materials and apparatus.
[14] CAO Xiaohua,REN Jie,XIE Baohua,et al.Clear oxidation of octadecanol to octadecanoic acid with H2O2 using (NH4)3P2Mo18O62 as catalyst[J].Chemical Industry and Engineering Progress, 2010, 29(1):58-61, in Chinese

Acknowledgement The work was supported by the grant from the Special Scientific Project for Forestry Public Industry of State Ministry of Science and Technology of China (No.200904023 and No.201304603) and the grant from the Key Project of Science and Technology Development Plan of Changsha city, China (No.
Kang, et al: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 370 (1-3) (2010), p. 58 [3] S.H.
Lu: Industrial and Engineering Chemistry Research, Vol. 43 (13) (2004), p. 3336 [8] D.H.
Wu, et al: Advanced Materials Research, Vol. 418-420 (2012) p. 693 [25] X.F.
Zhou, et al: Advanced Materials Research, Vol. 554-556 (2012), p. 191

Effect of recycled coarse aggregate on recycled concrete properties and study of optimum mixture ratio Hailong Ning1,2 a, Wenfeng Zhao1, b, Jian Liu1,c , Shaopeng Jiao1,d , Yixin Wang1e 1 School of Mechanics and Civil Engineering, China University of Mining and Technology Beijing 100083, China 2Organization Department of CPC Mentougou District Committee, Beijing102300,China anhl2008@sina.com, bzhaodilinu@163.com, cliujianluckly@163.com, djsp252075725@163.com, ewangyixin920701@163.com Key words: recycled coarse aggregate, water-cement ratio, mixture ratio, recycled concrete, physico-mechanical properties.
Introduction At present, the technique of recycled concrete is the subject which every country cares about together and becomes one of the hottest spots and frontierest problems in engineering and academia[1-5].Recycled concrete is the concrete which takes abandoned concrete debris removed from the old buildings as coarse aggregate and mixes with cement mortar.
As the research and application being in-depth, recycled concrete has been applied to more and more structures as a common kind of building material.
Table1 Optimum mixture ratio of recycled concrete Number Amount of material Concrete Coal ash Silica fume Water Water-reducing admixture Sand Recycled coarse aggregate 1 320（65%） 105 (20%) 45 (9%) 150 5(1%) 650 0% 2 320（65%） 105 (20%) 45 (9%) 150 5(1%) 650 25% 3 320（65%） 105 (20%) 45 (9%) 150 5(1%) 650 60% Table2 The recycled concrete strength of 7 days and 28 days Number Concrete age 7d 28d Compressive strength Tensile strength Compressive strength Tensile strength 1 39.6 2.70 60 3.02 2 37.7 2.58 62.8 3.41 3 38.9 2.65 65.6 3.60 The table shows that the recycled concrete strength of 7 days is slightly lower than that of conventional concrete.
Table5 Finial optimum mixture ratio of recycled concrete Number Amount of material Concrete Coal ash Silica fume Water Water- reducing admixture Recycled coarse aggregate Slumps 6 32 （55%） 150(25%) 50(10%) 155 5(1%) 0% 10.5 7 32 （55%） 150(25%) 50(10%) 155 5(1%) 60% 9.5 Table6 The recycled concrete strength of 7 days and 28 days with finial optimum mixture ratio Number Concrete age 7d 28d Compressive strength Tensile strength Compressive strength Tensile strength 6 44.6 3.15 70.2 4.86 7 43.2 3.06 74.6 4.95 Analysis of the test results： (1) The results show that the slump of recycled concrete (9.5cm) is lower than that of conventional concrete (10.5cm), but it’s still qualified.

Wu6 1School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, New South Wales 2522, Australia 2Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, New South Wales 2232, Australia 3Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501, Japan 4Electron Microscope Unit, University of New South Wales, New South Wales 2052, Australia 5State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China 6Baosteel Research Institute, Baoshan Iron & Steel Co., Ltd, Shanghai 201900, China agd577@uowmail.edu.au, bhongtao@uow.edu.au, cktieu@uow.edu.au Keywords: Hot rolling, high speed steel, work roll, thermal stress Abstract Hot strip rolling process is one of the most promising industrial processes to fabricate finished or semi-finished bulk products.

Materials and Methods A.
LBH-Q09158）; The National Key Technology R&D Program of China (No. 2007BAD87B03); Innovative Team Foundation of Northeast Agricultural University (CXT003-1-3) in China.
Tong, R, S, Tian, “Study on combination and ultraviolet mutation of PVA-degrading strains,” Chinese Journal of Environmental Engineering, Vol. 4, No.7, pp.1669-1674, July 2010
Yee Tam, “Using orthogonal design to determine optimal conditions for biodegradation of phenanthrene in mangrove sediment slurry,” Journal of Hazardous Materials, Vol.176,pp. 666–671, 2010 [12] J.X.Wang, X.H Zhang, W.H.Mu, H.Zhang,“Bioremediation of chlorimuron-ethyl contaminated soil by strain 2N3,”Chinese Journal of Pesticide Science, Vol.12, no.1, pp.49-53, 2010
Lin, “Biodegradation of phenolic wastewater in a fixed biofilm reactor,” Biochemical Engineering Journal Vol.27, no. 2, pp. 95–103, December 2005