Search results

Experimental study of the thermal insulation property of sedum linear roof module in real weather condition in Guangzhou, China Wang Zhangyuan1,a, Qiu Feng1, Yang Wansheng1,2 1School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China; 2State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China azwang@gdut.edu.cn Keywords: green roof module; thermal insulation; comparative study Abstract.
Substrates used on roofs have primarily been based on natural soil mixes or recycled materials [3].
The aims of the tests are to obtain the thermal insulation properties of the four modules, which will provide solid experimental results for the use of the green modules in practical engineering projects and be especially useful for industrial purposes, as well as for design, city planning and research applications at green roof sites.
The testing was operated at the Outdoor Testing Field, Structural Laboratory, School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, China from 1st July to 5th September 2012.
Emilsson: Ecological Engineering Vol. 33 (2008), p. 265

From the sighure ,exports above(that is vertical, horizontal life cycle) build jointly a research framework of environment sectors and ecological problems to process industry-related resources, this study can be said PISEA key point, understand the cross-coupling of two lives cycle compound derived from the environment, making PISEA study more in-depth research, thorough, complete and systems.
No doubt, PISEA study involved longitudinal and transverse cross-coupling studies of life cycle, the basic theoretical foundation for the subject of environmental science, environmental science, but here is the process industrial development through the process of the link system and a set of relationships and social sciences, engineering sciences so integrated and applied PISEA, we can say that any support related disciplines study are effectiveness in PISEA.
In the relevant process, people's views or proposals will be subject to all relevant factors, such as the level of environmental engineering technology, solve real environmental problems underlying technical feasibility, environmental values’identity,and so on.
“System engineering”, Beijing: tsinghua university press, 2004, pp.114-115
“Preparation of engineering materials, metallurgy and scientific”,Beijing: science press, 2006, pp. 273-374

Reducing Tool Wear in CNC End Milling Operation using Progressive Feed Rate K.S.BADRINATHAN1,a*, L.KARUNAMOORTHY2,b 1Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Sriperumbudur – 602 117.
India. 2Department of Mechanical Engineering, College of Engineering Guindy, Anna University, Chennai - 600 025.
a badrinathan@hotmail.com, b karun@annauniv.edu Key words: End milling, Progressive feed rate, Tool wear, Design of Experiments (DOE), ANOVA Abstract - This study focuses on the effect of cutting parameters on the tool wear in a CNC end milling operation.
Krain et al. [6] in their experimental work evaluated the effect of feed rate, radial depth of cut, tool material and tool geometry on the tool life and tool wear during end milling of Inconel 718.
This instant acceleration creates high cutting forces and large material removal rate which in turn leads to the increased tool wear.

Realization CNC Controller Enable Machine Condition Monitoring Architecture Based on STEP-NC Data Model Firman Ridwan1,2,a and Xun Xu1,b 1Department of Mechanical Engineering, University of Auckland, New Zealand 2Department of Mechanical Engineering, Andalas University, Indonesia afrid003@aucklanduni.ac.nz, bx.xu@auckland.ac.nz Keywords: STEP-NC controller, Canonical Machine Command, Feed-rate Optimization Abstract.
This proved that the system is able to respond according to different workpiece material and spindle speed.
The key feature of the proposed NC program executor is the ability to perform adaptive feed-rate optimization by keeping a constant load within the machine tool’s capability.

Optimization and Application of Composite Index Method for Evaluation of Rock Burst Rating Zhang Jiayong1,2,a, Luo Xinrong1, Guo Liwen2 and Gong Xuemin2 1Faculty Safety Engineering China University of Mining and Technology, Xuzhou Jiangsu 221116 China 2College of Resources and Environment Hebei Polytechnic University, Tangshan Hebei 063009 China azjy815@163.com Keywords: Composite Index Method, Rock Burst, Weight, Analytic Hierarchy Process, Risk Index Abstract.
The most unstable coal bed is the material structural characteristics of the burst.
Therefore, to analyze the factors statistically, using the system engineering theory to find the influence degree of the factors in the process of the rock burst, then to obtain all factors’ weight based on the analytic hierarchy process, the product of the weight and the corresponding real index is the risk index and determined by every factor on the burst.
The financial support provided by the Projects of Science & Technology Pillar Program in Hebei province (09275617) and Projects of Tangshan Key Laboratory (06360301-6), for this work is gratefully acknowledged.

Box 718-35, Mianyang 621907, Sichuan, China 2China Academy of Engineering Physics, P.
Box 919-71, Mianyang 621900, Sichuan, China achinapuzhenchao@126.com, bwangqingfu@caep.ac.cn, cshuaimb@sina.com, dlangdingmu@ceap.ac.cn Key words: Depleted uranium; 40Cr Steel; Galvanic corrosion Abstract.
Acknowledgements Support of this work by Chinese Academy of Engineering Physics Science and Technology Development Foundation (Grant NO.2010A0301014) is gratefully acknowledged.
"Corrosion and Control of Material".

Quadruple-arc Gear Design, Digital Processing and Carrying Capacity Test ZhongYi Ren School Of Mechanical engineering, NingXia University, yinchuan,750021, PR China rzy025@sina.com Key words: QssXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXuadruple-arc gear, Digital Processing, Tooth curve Abstract: Both the industrial sector and the academic study is the single-arc and double-arc gear at present, that is, tooth profile curve are composed by one or two arc.
Soviet engineer Novikov change transverse tooth profile to arc of arc gear in 1954, And gain a Soviet Union patent（USSR,Pat.No.109113,1956).
Tests show that arc gear carrying capacity is three to four times higher than involute gear in the same material and same size[1,2].
Transmit processing code to the CNC machine tools, and use the ball nose mill processe gear tooth surface, CAM software used in this article is CAXA Manufacturing Engineer 2008, CNC machine tools is a Swiss MIKRON 4-Axis vertical machining center, the tool is ball nose mill which buy from UNIONTOOL, as show in Fig2.

Regalbuto2, b 1Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Institute of Urban Construction, Tianjin 300384, China 2Department of Chemical Engineering, University of Illinois at Chicago, 810 S Clinton Street, Chicago, IL 60607, USA ajimliu@tjuci.edu.cn, bjrr@uic.edu Keywords: Oxide, pH, Adsorption, EXAFS, Electric double layer.
EXAFS Analysis EXAFS measurements were performed at the Advanced Photon Source (APS) at Argonne National Laboratory (Argonne, IL, USA) on the undulator beamline of the Material Research Collaborative Access Team (MRCAT).
Acknowledgements The support of the former CTS division of the Engineering Directorate of the National Science Foundation of U.S. is gratefully acknowledged.

Low loss hybrid dielectric-metal-dielectric waveguides for sub-micron mode confinement and efficient directional coupling Mo Yang1, a and Jincheng Song2,b 1 Department of Mechanical Engineering, North China Institute of Aerospace Engineering, LangFang, Hebei, 065000, China 2 The First Metrology and Measurement Institute of CASC, Beijing, 100076, China ayangmo101@163.com, bajin2008@tom.com Keywords: Low loss, Confinement, Waveguides and Directional Couplers Abstract.
The high-index dielectric material is assumed to be GaAs, whose refractive index is taken as 3.5.
We then investigate some of the key parameter effects on properties of the long-range hybrid mode.

Measuring Surface Uniformity in Chemical Mechanical Polishing Jae-won Baik1, a and Chang-wook Kang2, b 1 Department of Industrial Engineering, Hanyang University, Korea 2 Department of Information and Industrial Engineering, Hanyang University, Korea a liv26@hanyang.ac.kr, bcwkang57@hanyang.ac.kr Keywords: Chemical mechanical polishing , Non-uniformity, Geometric mean, Arithmetic mean Abstract.
CMP combines chemical action with mechanical abrasion to achieve selective removal of material through polishing.
The non-uniformity of wafer-scale thickness is a key metric for controlling a CMP process and gauging the quality of the outgoing product.