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Effect of Sr on the Microstructure and Properties of Hypereutectic Al-20 wt% Si Alloy Xiaosong Li 1. a, Anhui Cai 1. b, Gang Liu 2. c, Yong Zhou 1. d and Jijie Zeng 1. e 1School of Mechanical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, China 2State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China asongxli89@163.com, bcah1970@sohu.com, chbnplg@163.com, dquanzhou@21cn.com, ejijiezeng@163.com Keywords: Al-20 wt% Si alloy, strontium modification, mechanical properties, microstructure Abstract.
The raw materials were charged into a graphite crucible, then placed into a resistance furnace to be adequately melted at 950 ℃.
Huang: Materials Science.
Jia, Q.C Li: Aeronautical Materials.

Synthesis of nanostructured absorber materials is of great technological interest because photovoltaic devices employing nanostructures display higher values of energy conversion efficiency compared to conventional thin-film devices.
In both approaches, in order to obtain CZTSe nanostructures, a sacrificial template was necessary, implying material and time consumption.
We have found that not only current waveform controls morphology of nanostructures, but a key role has also supporting electrolyte.
Lincot, Cu(In, Ga)Se2 microcells: High efficiency and low material consumption, J Renewable Sustainable Energy 5 (1023) 011202
Sunseri, Electrodeposition and photo-electrochemical behavior of CIGS thin films and nanowire arrays for solar cell, Chemical Engineering Transactions, 32 (2013) 343-348

Effects of Radio-Frequency Power and Deposition Pressure on Structures and Properties of Silicon-Rich Silicon Nitride Thin Films Sun Jiaxina, Zhou Bingqingb*, Gu Xinc Key Laboratory of Physics and Chemistry for Functional Material, College of Physics and Electron Information, Inner Mongolia Normal University, Huhhot 010022, China a2637255253@qq.com, bzhoubq@imnu.edu.cn, c1558910050@qq.com Keywords: plasma enhanced chemical vapor deposition, silicon-rich silicon nitride film, RF power, deposition pressure, microstructure.
The substrate material was N-type silicon wafer (double-polished) and Corning 7059 glass wafer.
It can be seen from the diagram that the optical band gap width of the two sample groups were both between 2.0-2.5eV, which indicated that the deposited samples were silicon-rich silicon nitride thin film materials.
PECVD in-situ growth of Silicon quantum dots in silicon nitride from silane and nitrogen, J.Materials Science and Engineering B. 159-160(2009)77-79

Reduction of CO2 emissions at firing of binders type Portland cement Marcela Fridrichová1,a, Jan Gemrich2,b, Jana Stachová1,c and Radek Magrla1,d 1Brno University of Technology, Faculty of Civil Engineering, 602 00 Brno, Veveří 95, Czech Republic 2Výzkumný ústav maltovin Praha s.r.o., Praha 5-Radotín 153 00, Na Cikánce 20, Czech Republic afridrichova.m@fce.vutbr.cz, b gemrich@vumo.cz, cstachova.j@fce.vutbr.cz, dmagrla.r@fce.vutbr.cz Key words: Portland clinker, Portland cement, clinker minerals, hydration process, fluidized bed ash, fluidized fly ash, emission CO2 Abstract: Presented article deals with burn of raw admixtures with low content of carbon component for Portland cement burn.
Because the firing of Portland clinker is realized at higher temperatures, the constitution of raw mixture samples was designed by calculation from chemical composition of entrance materials to chosen values of single modules, resp. levels of carbonation by lime: Sample S1: triple-component from bed ash, limestone and Fe-correction; pbw of components: bed ash: gypsum: Fe-correction= 1:1,65:0,0005; phase composition according to Bogue: 64 % C3S, 18 % C2S, 8 % C3A and 7 % C4AF.
From done adjustments it has resulted that for sufficient kinetics of creation all clinker materials including the most important mineral alite, 3CaO.SiO2, it is necessary to add at least that amount of thermal energy, which meets modes 1400oC /5 hours, resp. 1450oC /3 hours with optimum 1450oC/ 5 hours in conditions of laboratory firing in superkanthal furnace.
Initiate differences in literature documented and confirmed mentioned fact about selective grinding of clinker materials.

Selection of Building External Windows in Different Climatic Zones Based on LCA Chunzhi Zhao1,2,3,a, Quan Jiang1,2,3,b, Ping Zhao3,c and Liping Ma1,2,3,d 1China Building Material Test & Certification Group Co., Ltd., Beijing, 100024, China 2National Key Lab for Green Building Materials, Beijing, 100024, China 3China Building Material Academy, Beijing, 100024, China achunzhizhao-1980@163.com, bjq@ctc.ac.cn, cczzhao@ctc.ac.cn, dmlp@ctc.ac.cn Keywords: Building external windows, Life cycle assessment, Different climatic zones, Selection.
Based on the LCA method, this article studies the environmental impacts like energy consumption and carbon emission etc. of three energy-saving windows with the largest market occupancy including bridge-cut-off aluminum alloy windows, un-plasticized polyvinyl chloride (PVC-U) windows and aluminum-wood composite windows to establish data bases for carbon emissions and life cycle environmental impacts of these three energy-saving doors and windows, so as to provide fundamental data for the establishment of LCA data base and the green building evaluation of localized external windows in China, method and data supports for green building materials and green building research, and push the development of green building materials and green buildings.
The window system boundary demarcated in this article includes the resource exploitation, the production of raw and accessory materials (aluminum sections, glass, PVC, timbers, thermal barrier strips, brackets, silicone sealants, rubber strips and kirsites), the transport of raw materials, the energy (power) production and the product production, namely from the "bassinet" to the "gate".
(3) If highway is adopted as the transport manner, the transport distance is calculated from the origin of raw materials purchased by the enterprise
Acknowledgements This work is supported by the project fund of " Research and Application of Life Cycle Assessment Technology to the Building Materials for Building Engineering in Typical Regions" of the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period (No.:2011BAJ04B06) References [1] Ming Qinghua etc., “The choice of energy saving doors and windows in different climate environment” [J], Doors and Windows, 2010, No.4 ,54-57

Due to the leading position of the European car industry and the large scale battery technology as a key factor, attractive market opportunities arise.
This starts with the material preparation, which includes mixing anode and cathode material with binder and other additives in order to set the desired particle properties of the active material (e.g. particle size distribution, morphology etc.).
General differences in stacking and winding methods are specifiable regarding the material handling.
The FMEA has a long tradition in engineering science as a bottom-up approach to identify and assess potential failures of components and products as well as processes.
In production scale, an optimum utilization of material is pursued, so that the algorithm provides a first evidence for material utilization.

Institute of Bio-inspired Structure and Surface Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2.
Conservation Institute of Dunhuang Academy, Dunhuang 736200, China; ameeahji@nuaa.edu.cn, bwwanfu@yahoo.com.cn, c316827569@qq.com, dwfs803@126.com Corresponding author: Ai-hong JI E-mail: meeahji@nuaa.edu.cn Keywords: insect, locomotion, adhesion, mural, claw Abstract: Adhesion of insects on murals is one of key factors leading to the biological diseases of wall paintings in cave temples.
Fig. 1 (a) Locomotion behavior of the insect Apopestes spectrum (Esper) on the murals in cave 54, Mogao grottoes based on video techniques; (b) Insect Apopestes spectrum (Esper) 2 Material and method In the study of animal caused diseases at cultural heritage sites, the high speed observing system was introduced firstly by our research team to monitor locomotion behavior of the insect Apopestes spectrum (Esper) on the wall paitings in caves of Mogao grottoes (Fig. 1a), and the gait information of the insect was extracted from collected images.
Zhang, Friction design of animal’s driving pads and its bionics (in Chinese), Chinese Mechanical Engineering. 16(2005),, 1454–1457

Research on mining method of submarine natural gas hydrates based on a double-channel lift pump Yicong Zeng1, 2, a, Hailiang Xu1, b, Wanrong Wu 1, c and Bo Wu1, d 1 School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China 2 School of Electronic Information Engineering, Changsha Social Work College, Changsha 410004, China azengyicong@yahoo.com.cn, bcsuxhliang @yahoo.com.cn, ccsuwwrong @yahoo.com.cn, dcsuwubo @yahoo.com.cn Keywords: Mining method, Submarine natural gas hydrates, Double-channel lift pump, Deep sea.
Acknowledgements We express our gratitude to State Key Laboratory of High Performance Complex Manufacturing of Central South University for providing research condition and thanks to all members who help our field studies.
[5] Ricaurte and Marvin：Industrial and Engineering Chemistry Research, Vol. 51(2012) No.7, p. 3157
Youdif and E D Sloan: SPE Reservoir Engineering, Vol. 6(1991), p. 452
Lang, et al: Advanced Materials Research, Vol. 433-440(2012), p. 215

Study on energy distribution of single-hole blasting vibration signal based on wavelet packet transform Dongtao Li1, a, Lixin Xu1, b, Yuanyuan Sun2, c, Qiurui Jia2, d and Jinglong Yan1, e 1School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China 2Department of operation command, Aviation University of Air Force, Changchun, 130022, China adong-tao-2008@163.com, blxxu@bit.edu.cn, cyuanyuansun@126.com, djiaqiurui@yahoo.com eyanjinglong@263.net Keywords: Blasting vibration, Energy distribution, Wavelet packet, Band energy, Single-hole blasting.
Therefore, the key is to select the optimal basis from various wavelet bases according to the requirements of the signal analysis.
Due to the natural frequency of the building is generally in the range of 0~10Hz, in the actual engineering blasting, great importance must be attached to the buildings (structure) distant from the explosion source, in order to avoid the formation of resonance.
In Chinese [5] Shi X Z, Chen S R: Soil Dynamics and Earthquake Engineering Vol. 31 (2011), p. 1054 [6] Kim D S, Lee J S: Soil Dynamics and Earthquake Engineering.
Vol. 19 (2000) p. 115 [7] Li D T, Yan J L, Zhang L: Applied Mechanics and Materials Vol. 170-173 (2012), p.1414 [8] Shi X Z, Lin D N, Chen S R: Explosion and Shock Waves Vol. 29 (2009) p. 401.

PHASE FIELD CALCULATIONS WITH CVM FREE ENERGY WITHIN SQUARE APPROXIMATION Tetsuo MOHRI1, a, Nao FUJIHASHI1,b and Ying CHEN 2,c 1 Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University Kita-13 Nishi-8, Kita-ku Sapporo 060-8628, JAPAN 2 Department of Quantum Engineering and System Science, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan a tmohri@eng.hokudai.ac.jp, cying@q.t.u-tokyo.ac.jp Keywords: Cluster Variation Method, Phase Field Method, ordered domain, square approximation Abstract.
The key to the method is the capability of incorporating wide range of atomic correlations which play essential roles in the accurate determination of transition temperature and the order of the transition.