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Types of Hidden Safety Trouble for Existing Buildings in Shanghai and Solving Measures Yan Xiaoli School of Management studies Shanghai Univ. of Engineering Science, Shanghai, China Keywords:Types of Hidden Safety Trouble; Existing Buildings; Solving Measure Abstract—In a city like Shanghai, where large sum of existing buildings with lots of existed hidden safety trouble exists, the need to identify and solve the safety problem of the existing Buildings to ensure the safety of the citizens’ lives and properties has become a vital task.
For they have lasted longtime and the materials and structure have been aging, the ability of carrying capacity has decreased largely.
While the aseismatic abilities of the buildings in the suburb area are much worse than in the key areas.
Some existing buildings have mosaic, granite and bricks as the external wall and after long last-time, these materials become flexible and will fall down once suffered from some outside force, which is very dangerous.
This method can reduce the manpower, material resources and financial resources and improve the work efficiency, c) Carry out the investigation work with Shanghai’s annual typhoon flood control, anti-snow and antifreeze work F.

Self-assembly of flower-like CeO2 microspheres via a template-free synthetic approach and its use as support in enhanced CO and benzene oxidation activity Jinfeng Chen1,a,, Huan Yi2,b 1School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, PR China 2Xi'an Center of Geological Survey, Xi’an 710054, PR China achenjinfeng@whut.edu.cn, bjoy200299@163.com Keywords: ceria, microsphere, self-assembly, CO and benzene oxidation, porous structure Abstract.
Recently, micro and nanostructured CeO2 materials have generated a lot of interest due to their unique physical and chemical properties.
Porous flower-like CeO2 microsphere prepared by a novel hydrothermal method via graft copolymerization reaction was proved a promising support material for catalysts used in steam reforming ethanol for producing H2 [11].
The isotherm of the Au/CeO2-f and Au/CeO2-p is of typical Ⅳ classification and exhibits clear H3-type hysteresis loop, which is characteristic of mesoporous materials.
In this work, the precursor concentration plays a key role in the synthesis of ceria microspheres.

PDMS remains one of the most popular materials used to fabricate micro- and nanofluidic structures [15].
It is relatively inexpensive, easily and quickly molded, nontoxic, and transparent PDMS in combination with high-resolution lithography are capable to fulfill the needs for a material allowing the observation of single molecules inside nanochannels.
Thus, we used a new material, hard PDMS [16]; which is glass like and has a Young’s Modulus three times greater than the soft one.
PDMS from DowCorning Corporation (Sylgard 184) has been chosen as a soft mold material.
These studies in microchannels are of importance from the physics as well as from the engineering perspective, because cognition of the Brownian dynamics of constrained and confined molecules is likewise critical for the device design.

TiO2 (0.18-μm grain size) is an anatase material (Ishihara Sangyou Co.).
Tanaka, Key Engineering Materials, 291-292 (2005) 343
Tanaka, Advanced Materials Research, 76-78 (2009) 337

Multi-parameter Linear Regression Analysis About the Experimental Results of Pervious Concrete Strength Xixi He1, a 1Beijing University of Civil Engineering and Architecture, Beijing, 100044, China a68322510@sina.com Keywords: Pervious concrete strength, Porosity, Size, Aggregate size, Linear regression Abstract.
Each group of test concrete water-cement ratio W/C is 0.35, and the cement is drilling license P.O425 produced by New Building Materials Co., Ltd in Sanhe Yanjiao.
Acknowledgment The authors would like to thank the Beijing key Laboratory of Green building and Energy Efficient Technology for the financial support of this project.
Several factors impacting on the performance of porous pervious concrete, Journal of Building Materials, October 2005.
(Journal of Building Material, Vol.8, No.5, Oct., 2005).

Advances in Fusion Welding Technique of Austenitic Stainless Steels Kuang-Hung Tseng a and Hsiang-Lin Sung b Department of Materials Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan atkh@mail.npust.edu.tw, bM9845001@mail.npust.edu.tw Key words: Fusion welding, activated flux, stainless steel, arc column.
TIG practice is often used for metal material welding and produces a clean and smooth weld.
The potential disadvantages of TIG practice lie in the limited thickness of workpiece which can be welded in single-pass operation, the poor tolerance to some material compositions (cast-to-cast variations), and the low manufacturing productivity [1-3].
Conclusions A detailed experiment is conducted to investigate the effect of FeO, FeS, and FeF2 fluxes on weld morphology and ferrite structure when using an autogenous TIG process, without the addition of filler material, to weld stainless steel 316L plates.

Effect of Annealing Temperature on the Transformation Temperature and Texture of Ni47Ti44Nb9 Cold-rolled Plate Zhaowei Feng1, a, Xujun Mi2, b, Jiangbo Wang1, c, Zhishan Yuan1, d and Jin Zhou1, e 1Grikin Advanced Materials Co.
,Ltd, Beijing 102200, China 2State Key Laboratory for Fabrication&Processing of Nonferrous Metals,General Research Institute for Nonferrous Metals, Beijing 100088, China afzw@grikin.com, bmxj@grinm.com, cwangjiangbo@grikin.com, dyzs@grikin.com, ezhoujin@grikin.com Keywords: Ni47Ti44Nb9 Shape Memory Alloy, Cold-rolled Plate, Annealing, Transformation Temperature, Texture Abstract.
Hot-rolled plates were used as a starting material to make cold-rolled plates, with cold rolling reduction (CW) of 0, 9, 18, 24 and 35%, respectively.
The strong {111}<112> texture can form in annealing of Ni47Ti44Nb9 secondary cold-rolled plate, so higher shape memory strain are achieved in all directions of plate meeting demand of engineering applications.
References [1] Zuyao Xu, Bohong Jiang, Dazhi Yang, LianchengZhao, Jinfang Guo, Daocheng Pan, Chaoying Xie, Wei Cai, Xunqi Zhang and Yue Huang: Shape Memory Materials (Shang Hai Jiao Tong University Press, Shanghai 2000), p. 85 (in Chinese) [2] J.V.

Effect of Ferrite/Austenite Phase Transformation on 475˚C Embrittlement in Duplex Stainless Steel Weld Kazuyoshi Saida1,a*, Shotaro Yamashita1,b and Hiroyuki Hirata1,c 1Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan asaida@mapse.eng.osaka-u.ac.jp, bsyamashita@mapse.eng.osaka-u.ac.jp, ch-hirata@ mapse.eng.osaka-u.ac.jp Keywords: Duplex stainless steel, 475˚C embrittlement, Ferrite/austenite phase transformation, Computer simulation, Phase decomposition Abstract.
Materials and Experimental Procedures ATable 1.
Fig.6 shows the TEM microstructure, diffraction pattern and key diagram.
The material constants and numerical values used for calculation are shown in previous report [5].

Fractal Modeling Research in Permeability of Camellia and Bancoul nut Cakes under Cold-press Xiaocong Ren1,a, Xiao Zheng1,b, *, Ge Chen1,c ,Zhixian Sun1,d 1Institute of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430023, P.
It is an intrinsic property of material [1].
According to equation .2, the actual length of seepage pores, Lt(λ), is another key factor impacting pore fluid flow rate in the Hagen-Poiseuille equation [4].
The materials were purchased from farmers market.
One reason is that vegetable oil materials have the viscous-elastic-plastic feature [10].

The vast majority of cycles within a typical helicopter fatigue spectrum exist at a few key frequencies, namely the frequencies and harmonics of the main and tail rotor.
The aim of this program is to determine the effect of spectrum truncation on Crack Growth (CG) and Crack Initiation (CI) in 7075-T7351 aluminum alloy, which is a material that is widely used in Black Hawk airframe.
[3] ‘ASTM E 1049–85 (Reapproved 1997) Standard Practices for Cycle Counting in Fatigue Analysis’, American Society For Testing and Materials, 2004
E. (1999), ‘Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue’, 2nd Edition, Prentice-Hall