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Key words: Geo-accumulation Index, Enrichment Factor, Source Apportionment, Integrated Dust, Comparative Study Abstract.
From the view of contamination levels, the pollution results of Mo, Ba, ,Na, Mg, K are same，indicating that the two methods are similar to a certain extent, other the enrichment factor in the degree of pollution of the other elements is greater than the geo-accumulation index of the degree of pollution, this is because the source of these elements is not the only one, for example, the source of Ca generally come from construction dust and road dust, meanwhile two dust are difficult to settle to the soil because the huge amount of urban engineering and traffic, lead that the degree of pollution of enrichment factor are more serious than geo-accumulation.
Journal of Hazardous Materials.2010,173:384–392

Mawby1,2,l 1School of Engineering, The University of Warwick, UK 2IMB-CNM-CSIC, Barcelona, Catalunya, SPAIN 3IMM-CNR, sezione di Catania, ITALY 4Anvil Semiconductors Ltd, Coventry, UK am.r.jennings@warwick.ac.uk, b amador.perez@imb-cnm.csic.es, c andrea.severino@imm.cnr.it, dpeterjward@anvil-semi.co.uk, ea.bashir@warwick.ac.uk, fcraig.fisher@warwick.ac.uk, gstephen.m.thomas@warwick.ac.uk, hp.m.gammon@warwick.ac.uk, ibenedict.donnellan@warwick.ac.uk, jh.rong@warwick.ac.uk, kd.p.hamilton@warwick.ac.uk, lp.a.mawby@warwick.ac.uk Keywords: 3C-SiC, MOS, Wafer Bonding, Wafer Bow Abstract.
Introduction Silicon carbide (SiC) is a promising material for medium to high voltage (>1000V) power electronics applications.
To realize a high quality wafer bond between the Si (111) and poly-SiC carrier wafers is a key objective when attempting to grow 3C-SiC layers above such a structure.
For a viable wafer bonding process to be realized, the exact nature of this material was analyzed by x-ray diffraction (XRD).

Research on the Sustainable Development Evaluation of Resource-based Cities Yu-Chen Song1,a, Wei He1,b, Xiaobing Li1,cand Yan Han1 1Center for Inner Mongolia Industry Informationization and Innovation, Department of Mining Information System, Laboratory for Data Engineering, Inner Mongolia University of Science and Technology, Inner Mongolia, Baotou, 014010, China asongyuchen@imust.edu.cn, bsxakhw@126.com, civbing@163.com Keywords: Resource-based City, Sustainable Development, Principal Component Analysis Abstract.
The environmental quality is the key element of the sustainable development ability.
[2] Yuchen Song, JinKe Liu: Advanced Materials Research (Trans Tech Publications, Switzerland 2012)

Introduction The design of the thermal protection system (TPS) is a key technology for the high speed vehicle.
Such as film cooling [1], transpiration [2], mechanical spike [3], thermoelectric materials [4], new techniques were used into the thermal protection system.
[4] Xiao-yi Han, Jun Wang, Effect of Mach number on thermoelectric performance of SiC ceramics nose-tip for supersonic vehicles, Applied Thermal Engineering, 62(2014) 141-147

Optical Diagnosis of Atmospheric Pressure Gas-Liquid Diffuse Discharge Excited by Nanosecond Pulse Voltage Ya-bo Wei 1,2, Li Zhang 2, Peng-Chao Jiang2, Shuai Zhang2, De-Zheng Yang2,a 1 School of Electrical and Information Engineering, Pingdingshan University, Pingdingshan 4670100, China 2 Key Lab of Materials Modification (Dalian University of Technology), Ministry of Education, Dalian 116024, China a yangdz@dlut.edu.cn Keywords: Nanosecond pulse; diffuse discharge; gas-liquid discharge; emission spectra; gas temperature Abstract.

The simulation and experimental analysis of hydrodynamic focusing effect inside a rectangular microchannel Shuaijie Feng1, a, Xinqun Shi1,b , Jing Zeng1 , Yan Peng1,c and Mei Liu1, 2,d * 1 The School of Mechatronics Engineering and Automation, Shanghai University 200072, China 2 State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 ,China ashfz4418259@163.com, b915868345@qq.com, cpengyan@shu.edu.cn, d mliu@shu.edu.cn Keywords: Three-dimensional hydrodynamic focusing; micro-fluidic chip; COMSOL Abstract: This paper models the hydrodynamic focusing performance of a micro-fluidic chip with rectangular cross-sections, and the relationships between the aspect ratio, flow rate ratio of sheath flows to the sample flow, and dimensions and position of the focused sample flow are obtained.
Introduction Hydrodynamic focusing is a widely applied micro-fluidic technology, which can be used for materials fabrication, such as micro-particles or droplets [1, 2], hollow or composite fibers [3], or for selective deposition of protein [4] or nanowires [5], and can also be used as flow cytometry [6] or micro-mixers [7].

The Effect of Roller Profile Modification on Roller Bearing Performance Liqin Wanga , Zhenhuan Ye b and Le Guc Harbin Institute of Technology, No.92 West Da-Zhi Street, Nan Gang district, Harbin, China alqwang@hit.edu.cn, byezhenhuan@yahoo.cn, cgule@hit.edu.cn Key words: High-speed roller bearing; Roller profile modification; Load distribution Abstract According to roller profile modification method, several commonly used modified rollers were selected into the bearing dynamic analysis combined with dynamic model of bearing.
Bearing PV value (pressure multiply slide velocity) will cause a lot of heat, which has a greater damage to lubricating oil film and bearing materials, on the condition of heavy load and high speed.
Lubrication Engineering: Vol. 34(2009), p. 50-53 [6] Y.S.

Hydraulic Transmission and Control Technology Based on Energy-Saving Zhuxin Zhang1,a, Liang Li2,b 1Changchun Institute of Technology, Jilin Changchun 130012, China 2College of Mechanical Science and Engineering, Jilin University, Jilin Changchun 130025, China azzx-cc@163.com, bliliang@163.com Keywords: Permanent magnet servo motors, direct drive volume control, electro-hydraulic servo control system, volumetric speed control, energy conservation, symmetry Abstract.
Obviously, the overflowing and the throttling are the keys to control the system’s energy loss, mainly realizing the system’s speed control.
In actual, this process reflects the second principle of the systematic, which is the highest principle of the five principles, which are the utilization efficiency of space, time, materials, energy and information of the whole system tends to be the highest in the premise of ensuring the realization of the function the environment allows the system to achieve.

Introduction Silicon Carbide (SiC) epitaxial growth has been a key process technology in the development of SiC power devices.
References [1] Malhan et al., Microelectronic Engineering 83, (2006) pp. 107-111
[4] Takeuchi et al., Materials Science Forum 527-529 (2006) pp. 251-254.

Fishbone analysis: contribution factors to pressed green density Each of the listed factors noted in Fig.3 was ranked: The material used was obtained from the same cast tape for all the samples.
This is an indication of a day by day 'controlled' state Shift of the samples Taper of Stack PRESSED GREEN DENSITY Temperature Humidity Composition Area Temperature CONFIGURATION ENVIRONMENT EQUIPMENT Load MEASURING MATERIAL Moisture Weight Thickness Mean chart "day by day" 4.40 4.60 4.80 5.00 5.20 1 3 5 7 9 11 14 16 18 20 samples green dansity [g/cm 3 ] A) Range chart "day by day" 0.00 0.20 0.40 1 3 5 7 9 11 14 16 18 20 samples sample range [g/cm 3 ] B) Figure 4.
Soc. (2003): in press [9] L.Mortara, A.Navarro, R.W.Whatmore and J.R.Alcock: Key Process Engineering (2003): in press [10] M.R.