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Multiple Imputation for Missing Data in Life Cycle Inventory Yu LIU, Xianzheng GONG, ZhiHong WANG, Wei LIU, Zuoren NIE* School of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China zrnie@bjut.edu.cn Keywords：life cycle assessment; multiple imputation; missing data Abstract.
Introduction Life cycle assessment is a compilation and evaluation of the inputs, outputs and the potential environmental impacts of a product system throughout its life cycle including consecutive and interlinked stages of a product system from raw material acquisition or generation of natural resources to final disposal [1].
Acknowledgement This work was financially supported by the National Natural Science Foundation of China (NSFC, Project No.50525413), National 863 Project (2007AA03Z432), National 973 Project (2007CB613206) and National Key Technology R&D Program (No.2006BAE04B09 and No.2006BAF02A23).
Journal of Clinical Epidemiology. 2006, 59: 1087-1091
Journal of Clinical Epidemiology. 2002, 55: 184-191 [13] Robins JM, Wang N.

These examples consist in a rectangular plates subjected to in-plane external loads, material and geometrical parameters which are considered as random variables.
In the last ten years there has been an increasing trend for analyzing structures using probabilistic information of loads, geometry, material properties, and boundary conditions.
The Flexural Vibration of Welded Rectangular Plates”, Journal of Sound and Vibration. 1981; 75(2): pp. 163-178
Journal of Engineering Mechanics-ASCE. 1979; Vol.1095; No. 4; pp. 661-676
Thèse de Doctorat, Institut National des Sciences Appliquées de Rouen, France. 2006

The leachate from semi-aerobic landfills contains a high concentration of organic materials which indicates the potential of methane gas generation in the leachate collection pond [8].
Concurrently, leachate samples were analyzed for Chemical Oxygen Demand (COD) in order to ascertain the amount of organic materials contained in the leachate which has the potential of methane gas generation.
With mean COD values of the leachate in the leachate pond this high, it indicates the presence of organic materials in the leachate which also indicates the potential of methane gas generation in the leachate pond.
Lelli, Gas emission into the atmosphere from controlled landfills: an example from Legoli landfill (Tuscany, Italy), Environmental Science and Pollution Research. 17 (2010) 1197–206 [4] O.
Muhammad, Leachate characterization in semi-aerobic and anaerobic sanitary landfills: A comparative study, Journal of Environmental Management. 91 (2010) 2608-2614 [10] Q.

Experiment 1.1 Raw material and mixing proportion of concrete Using both P.
The Shanghai Huawang company's Mighty 100 high efficiency water reducing agent, recommended dosage 0.7 to 1.2% of the total weight for the gelled material.
Simultaneously, sodium chloride of 3% of the total gelled material quality was added to each of the concrete to introduce the chloride ion.
ACI Materials Journal, 2006, 103(4): 243~250 [5] J.Bennett, T.J.
ACI Structure Journal, 1999, 156(1)149 -158 [11] J.C.

At last, influence factors of pipe conditions, such as flow rate, pipe material and other hydraulic conditions, were also researched [5,6].
balance equation for the reaction is represented as: aA+bB=pP （5） Wherein A represents chlorine; B represents the set of all reactive substances; P represents the set of all reaction material; a, b, p represents the stoichiometric coefficients.
Acknowledgements This work was financially supported by the National Natural Science Foundation (51278026).
Journal of water resources planning and management, 2003, 129(1):78-81 [10] Paula V, Sergio Y C, Dalia L.
Journal of Water Supply: Research and Technology-AQUA, 2004, 53(7):453-467 [11] Wable O., Dumoutier N.

Whereas, the disadvantages of LTCC technologies are will influence more of fabrication process are not mature and much process development is still on-going and for both the integral passive components and the materials themselves, the RF characteristic data are not possible available.
The dielectric selected is ceramic materials (Zn, Mg) TiO3.
Homolka, “Application of the LTCC Technology for the Fabrication of the RF 3D Inductor,” Romanian Journal of Information Science and Technology, vol. 11 no. 8, pp. 193-202, September. 2008
Fu, “Microstrip Cross-coupled Trisection Bandpass Filters Fabricated on High Dielectric Constant Ceramic Substrates,” IEEE International Conference Electronic Materials and Packaging, pp. 1-4, December. 2006 [21] I.
Yun, “Compact LPF using asymmetrical microstrip step discontinuity for harmonic suppression,” IET Journals & Magazines, Electronics s Letters, vol. 41, no. 16, pp. 41 – 42, September. 2005

The quality standards study of Hedyotis diffusa Yulian Xu1, a, Song Xiang2,d, Pu Guo1,b , Lin Niu1,c , Yunlan Li* and Qingshan Li* 1 School of Pharmaceutical Science, Shanxi Medical University, 56 Xinjian South Road,Taiyuan 030001, Shanxi, China 2 The Second Affiliated Hospital, Shanxi Medical University, 382 Wuyi Road,Taiyuan 030001, Shanxi, China axuyulian080614@163.com, bguopusxmu@163.com, c413066939@qq.com, dsongxiangeryuan@163.com *Authors to whom correspondence should be addressed; E-Mails: liyunlanrr @163.com(Y.L.); qingshanl@yahoo.com (Q.L.); Tel.:+86-351-4690-322 (Q.L.); Fax: +86-351-4690-114 (Y.L.) 1 These authors contributed equally to the present work.
Instruments, Plant Materials, Chemicals and Reagents The thin-layer plates of silica gel G was obtained from Qingdao Haiyang Chemical Co.Ltd.
Acknowledgements Financial supports from the National Natural Science Foundation of China (No. 30973603), Program for the Top Science and Technology Innovation Teams of Higher Learning Institutions of Shanxi Province, the Program for the Top Young and Middle-aged Innovative Talents of Higher Learning Institutions of Shanxi Province, the Start Fund of Shanxi Medical University, Dr. 08.
Foundation of Young academic leader in Shanxi Province, Shanxi Province Foundation for overseas returners (No.2010-54) and preferred project supported by the science and technology activities(No.201368), graduate outstanding innovation project in Shanxi province (20133076), program for science and technology development - social development plan of Shanxi Province (20130313021-9), are gratefully acknowledged..
Ezrin dephoshorylation/downregulation contributes to ursolicacid-mediated cell death in human leukemia cells, Blood Cancer Journal, 2013,3:1-10.

Materials and methods Sample Collection Samples were collected with sediment sampler from Yitong river source, Xinlicheng reservoir and urban parts, including total 13 samples.
Acknowledgements This research was financially supported by the National Natural Science Foundation of China (No.41071160) and National Natural Science Foundation of China(NO.31071862) .
Chinese Science Abstracts, 2001 ,7 (9)：1166-1167(In Chinese) [6] Xiaoxia LV, Jinming SONG.
Advances in Marine Science , 2003 , 21 (2)：174-180(In Chinese) [7] Gahoon L B , Nearhoof J E , Tilton CL.
Journal of Jilin Agricultural University,2001,23(3):72-77(In Chinese) [15] Dangling HUA, Yiping ZHANG.Studies on soil organic–mineral complex under different fertilization [J].

The Optimization System Design and Experimental Study of Process Parameters Based on LabVIEW Wenhui Yuea, Xuehua Chenb, Xiaojun Wangc, Jianxin Wengd and Ziqiang Hane Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Xiangtan, Hunan, 411201, China ajwc1999178@126.com, bxuehuachen111@163.com, cwxiaojun521@126.com, d510062729@qq.com, e727262822@qq.com Keywords: LabVIEW, Response surface methodolody, Process parameters, Surface roughness, Optimization design Abstract.
The milling process conditions are the workpiece material: 45 steel, blank dimension: 10 mm × 60 mm × 80 mm, machine tool: KVC800M four coordinates vertical processing center, cutter: cemented carbide general vertical milling cutter, whose diameter is 12 mm and spiral angle is 45°.
According to the cutters, workpiece material and bearing capacity of the machine tool used in the test, the machining parameters' value range as follows, back cutting depth ap: 0.05 ~ 0.35 mm, spindle speed n: 1800 r/min ~ 2700 r/min, feed vf : 250 mm/min ~ 600 mm/min, cutting width ae: 1 ~ 2.5 mm.
Acknowledgements This work is financially supported by National Natural Science Foundation of China (51075142), Science and Technology Project of Hunan Provincial Education Department (11C0531) ,The Key Project of Science Provinces and Cities Combined Fund of Hunan Province (11JJ8005) and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province.
Dong: Journal of Mechanical Engineering, Vol.47 (2011) No.3, pp.174-178.

Introduction Since the random fluctuation of external loading on structure and the intrinsic non-uniformity of structural material, quality and ethnics, different capabilities are shown for the same kind of structures at the same service case.
As a modern branch of science and technology, the active reliability-based design for predetermined life of structure may find a wide application.
Acknowledgement This research was supported by the National Natural Science Foundation of China (No. 50135010) References [1] Z.T.
Tong: Literature review on aircraft structural risk and reliability analysis (Aeronautical and Maritime Research Laboratory, Defence Science and Technology Organisation, Australia, 2001) [6] Z.T.
Gao: Chinese Journal of mechanical engineering Vol. 34(1) (1999), p.103 (in Chinese)