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Online since: November 2010
Authors: Yan Gang He, Xiao Cun Xu, Yan Min Wang
Therefore, the workpiece is assumed as the rigid-plasticity material.
The test is conducted with a material testing machine.
Acknowledgement Supported by the Science and Technology Department of Heilongjiang Province (GC02A408).
Xiang: The International Journal of Advanced Manufacturing Technology, Vol. 22 (2003), pp. 387-395
Lin: Advanced Materials Research, Vol. 97-101 (2010), pp. 1883-1886
Online since: December 2012
Authors: Li Mei Wu, Yan Rong Wang, Yong Zhao Li, Fei Yang
Introduction With the progress of modern science and technology, the gear is also developing towards the direction of high-speed, heavy-duty and light-weight.
(2) Set up the material properties: Each group of material properties has a material reference number in ANSYS, an analysis can have the own number of material properties, and software identifies material properties by this reference.
Beijing University of Science and Technology Scientific Journal, 2006, 28(12):1167-1173.
Online since: January 2013
Authors: Hai Rong Tang, Xue Zhi Zhou, Hui Juan Yan, Xin Ming Wang, Feng Hua Yang, Ying Qiang Guan
Box 1048, Beijing 102205, China 2 Beijing National Laboratories for Molecular Sciences (BNLMS) axzzhou2011@sina.com, bhrtang@sina.com, email, c yanhj@iccas.ac.cn, dxmwang_2011@sina.com, eyangfh2005@sina.com, fhuaxuedan10@tom.comemail Keywords: adsorption, nitrogen (N2), carbon dioxide (CO2), physic-sorption, chemi-sorption List the Abstract.
In this way produced such materials as HCP, hardened cement mortars (HCM) and concrete; HCP was the material produced when added water into cement, the main products of cement hydration are Ca(OH)2 and some colloidal products such as tobermorite gel and various Al3+, Fe3+and SO42-containing phases [1].
Experimental Section Materials.
Acknowledgements This work is financially supported by the NSFC project (no. 21203246) and Beijing National Laboratory for Molecular Sciences (BNLMS).
Nano-structural changes of C-S-H in hardened cement paste during drying at 50 0C, Journal of advanced concrete technology.2007, 5 (3):313-323
Online since: October 2013
Authors: Jun Jian Li, Yi Yin, Zu Lun Lin, Kang Cheng Qi, Xiao Ju Wang, Gui Chuan Cao, Jian Ting Xiao
Cubic-shaped Al-doping MgO Powders Used in PDPs Jian-ting XIAO1,a, Jun-jian LI1,b, Yi YIN1,c, Zu-lun LIN1,d, Kang-cheng QI1,e, Xiao-ju WANG1,f and Gui-chuan CAO1,g 1University of Electronic Science and Technology of China, China axjt425@163.com, bjjli@uestc.edu.cn, cyinyi@uestc.edu.cn, dzllin@uestc.edu.cn, ekcqi@uestc.edu.cn, fxjwang@uestc.edu.cn, ggchcao@uestc.edu.cn Keywords: MgO powders, Al-doping, Cubic-shaped, PDP.
A second solution is to choose proper component materials which can reduce the required voltage for discharging, and which will then be compatible with integrated circuits [3,4].
As a result of cheap materials and environmental friendly technologies, the method is a good choice.
[3] Rakhwan Kim, Younghyun Kim and Jong-wan Pank, Electrical properties of evaporated MgO-TiO2 protective layer for AC PDP, Journal of Material Science 36 (2001) 1469-1473
Online since: October 2013
Authors: Qiang Li, Ying Gao, Juan Wei, Xing Chun Yang
Simulation of Air Distribution on Inlet Section of Wet-ESP Ying Gao1,2,a, Juan Wei3, Xingchun Yang1, Qiang Li1, 4,b 1 College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China 2 Hebei Key Laboratory of Material Near-net Forming Technology, Shijiazhuang, Hebei 050000, China 3 Department of mechanical engineering, Xingtai Technician College, Xingtai, Hebei 054001, China 4 College of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China agaoyingch@sina.com, bliqiang@hebust.edu.cn Keywords: Electrostatic precipitator;Air distribution;Numerical simulation;Two-phase flow;Air inlet Abstract.
Inlet material was air, air densityρ=1.225 Kg/m3, viscosity coefficient μ=1.76×10-5 Kg/m·s.
The smaller angles would increase the length of inlet section and enlarge the volume of equipment, which would lead to more materials wasting.
Journal of Electrostatics, 2005, 63(5): 423-443 [2] F.
Online since: August 2013
Authors: Yan Liu, Yong Lai, Zhi Gang Luo
Table 1 Mix proportions of concrete Number The raw material content (kg/m3) Early age Late age Cracking Cement Fine aggregate Coarse aggregate Water Fly ash Water reducer W/C ratio AC1 BC1 CC1 360 733 1099 168 40 2.8 0.42 AC2 BC2 CC2 320 733 1099 168 80 2.4 0.42 AC3 BC3 CC3 280 733 1099 168 120 2.0 0.42 AC4 BC4 CC4 360 733 1099 168 40 2.8 0.42 AC5 BC5 CC5 320 733 1099 168 80 2.4 0.42 AC6 BC6 CC6 280 733 1099 168 120 2.0 0.42 The effect of fly ash on early shrinkage of commercial concrete Figure 1 and Figure 2 show the shrinkage curves of concrete with fly ash from initial setting time to 72h.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (Grant Nos. 51208018), Science and Technology Project of CAAC (MHRD201225) and Beijing Nova Program (Z121110002512090).
Plastic Shrinkage Cracking in Concrete Materials Influence of Fly Ash and Fibers.
ACI Materials Journal.2001, 98 (6):485-464
Online since: September 2008
Authors: Mircea Ignat, George Zarnescu
In table 1 are presented the dimensions and the material of the guide mark of this manipulator.
Science 190: 377-379 [2] Schűler, D., Frankel, R.
Models and applications in the electromechanical nanoactuation", Romanian Journal of Physics, (2004) 9-10:835- 847 [5] M.
Cojocaru, "Experimental aspects and magnetic characterization of magnetospirillum gryphiswaldense", Proceedings of The 4th National Conference New Research trends in material science, ARM 4, september 2005, vol.I, pp.433-441 [6] P.H.A.Aragao, M.Simoes ,"Chaotic of magnetotactic bacteria " , Chaos,Solitons and Fractals 11 (2000),923-928
[13] M.Ignat,G.Zarnescu, S.Soltan,I.Ardelean,C.Moisescu, J.of Optoelectronics and Advanced materials,vol9,no.4,april 2007,pp.1169- 1171
Online since: July 2011
Authors: Lin Lin Liu, Shi Chao Fan, Xiu Juan Li, Hao Li, Wen Feng Fan, Jian Qiao Li
Ranges of the lunar soil in different depth Depth [cm] Cohesion c [kPa] Internal friction angle φ[deg] Bulk density [g/cm3] Range Average Range Average 0~15 0.44~0.62 0.52 41~43 42 1.45~1.55 0~30 0.74~1.1 0.9 44~47 46 1.53~1.63 30~60 2.4~3.8 3 52~55 54 1.69~1.79 0~60 1.3~1.9 48~51 1.61~1.71 Regolith refers to the material on the lunar surface with the loose granular structure [1, 2].
Materials and method The lunar soil simulant used for the experiments.
Acknowledge The research was supported by National Natural Science Foundation of China (No. 50875107), the National High Technology Research and Development Program of China (No. 2010AA101401-3), and Graduate Innovation Fund of Jilin University (No. 450091102354).
[3] Ziyuan Ouyang, Introduction to Lunar Science[M].
[4] Zou Meng, Li Jianqiao,Zhang Jinhuan, et al, the Tractive Ability of the Lunar Rover on Different Materials, Jilin University Journals, 2010
Online since: September 2013
Authors: Yao Zhong Zhang, Zi Fu Li, Xuan Liu
Energy Balance Analysis on the Slow Pyrolysis Process of Cattle Manure Xuan Liu1, a, Zifu Li1,b and Yaozhong Zhang1,c 1University of Science and Technology Beijing, Beijing 100083, PR China austb_liu@foxmail.com, bzifulee@aliyun.com,czhangyaozhong6858@163.com Keywords: Cow manure, slow pyrolysis, energy balance Abstract.
Pyrolysis is a thermochemical decomposition of organic material at elevated temperatures without the participation of oxygen, or with very limited air [1].
A typical pyrolysis process chart for manure processing is shown in figure 1, as the fresh manure normally has high moisture, a pre-treatment process to dry the raw material is needed.
When the Qgas=Qin-NRS the input material moisture is 36.63%, and when the Qgas=Qin-VRS, the input material moisture is 48.18%, which is 11.55% higher than the former.
Journal of the Science of Food and Agriculture. 92 (2012) 490-495
Online since: December 2012
Authors: Han Yang, Xiang Hong Zhang, Xian Da Xie, Ying Ze Wang
Materials and Methods Water Treatment Technology.
Material for Water Treatment External Pressure Type Ultra Filtration Membrane.
External pressure type hollow fiber ultra filtration membrane is made of hydrophilic alloy PVC material, the filter aperture on membrane surface is 0.01 micron, the inner diameter of membrane is 1mm, and outer diameter is 1.6mm(Picture 1).
Activated carbon is currently an adsorption filter material with favorable performance and commonly seen on the market, which possesses dual-attribute of physical adsorption and chemical adsorption, it can adsorb micro molecule organic matter, residual chlorine and heavy metal, reduce the chromaticity, stink and odor of directly drinking water and improve the taste.
Reference [1] Hongmei Shen,Liyun Y U, Zhenliang Xu;Hydrophilic study of PVDF hollow fiber UF membrane modifyed by TiO2 sol; Membrane Science and Technology,2009.06 [2] J iang Shaojie,Feng Haixiang ,Che Tengteng; Influence of dosing powdered activated carbon in front-end filter on effluent turbidity;Water Technology 2011.02 [3] Zhang Pengfeng1,Yang Yingjie,Zhang Wenchao,Chang Jiang;Study on the Influence of Reclaimed Wastewater UV disinfection by GAC Enhanced sand Filtration; Water & Wastewater Engineering, 2011.02 [4] Zhibin Qian,Wei Shen,Ye Jiang;Study on Micro-wave ultraviolet disinfection technology Water Prospect; Automation & Instrumentation, 2011.01 [5] Fei Yuan, Modified Ultrafiltration Research Progress in China and Abroad, Guangzhou Chemical Industry,2011.12 [6] Hester JF, Mayes AM.Design and performance of foul-resistant acrylonitrile and polysulphone Journal of Membrane Science,1996,111poly (vinylidene fluoride)membranes prepared in a single-step by (2):193-215; [7