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Absorption and Emission Properties of Bismuth-doped Silicate Glass Bing Xu*1,a, Xiangjun Xu1,b, Houmei Dai2,c, Zhenwei Deng1,d and Xiangqun Lv1,e 1Wuhan Mechanical College, 42 Luoyu Road, Wuhan 430075, PR China 2Department of Applied Physics, Wuhan University of Science and Technology, 2 Huangjia Lake Road, Wuhan 430081, PR China ahustxub@gmail.com, bwhxuxj@163.com, cdhm_362260810@qq.com, dwhudzhw@gmail.com, ewuzhaojun@yeah.net Keywords: Absorption, Emission, Bismuth, Silicate glass Abstract: Single Bi-doped and M/Bi co-doped silicate glass (M=Al, Y, La) were prepared and broadband NIR emission were observed when the glass samples were pumped by 514 nm and 808 nm LD, respectively.
So people have been searching for novel materials with wide amplification bandwidth as the gain medium of fiber amplifiers.
Analytical pure reagents of SiO2, Al2O3, Y2O3, La2O3, CaCO3 and Bi2O3 were used as raw materials.
Qiu: Journal of the Optical Society of America B.

Namely that is based on bionic alteration form, bionic modified and functionality bionic of farming machinery parts to reduce resistance, and to change the stress distribution condition, reasonable to optimize the structure of components, reduce material consumption, light the parts and the whole weight of tillage machines, lower power consumption, or under the same dynamic conditions, increase machines or increase work range, eventually to improve work efficiency.
Because of obtuse apex, on the one hand it can reduce the stress concentration, to enhance the mechanical strength of biological materials compatible with environmental conditions, and improve the abrasive resistance of the soil.
,the displacement analysis and stress analysis diagrams are shown respectively in from figure 5 to figure 9, the 5 kinds of bionic blades using the same material, the same forces are applied on the contact area of sawtooth with straw.
Journal of Agricultural Mechanization Research,2006(5):10~13(in Chinese) [3] YUE Qin, LI Yan, LI Shu- ting, WANG Hong- tao.
AGRICULTURAL EQUIPMENT & VEHICLE ENGINEERING,2007,(5):10-12(in Chinese) [4] Ren luquan.The bionic research progress of ground mechanical stripping drag-reduction.Science in China(E),2008,Vol.38(9):1353-1362 (in Chinese) [5] LI Xiao-dong, MA Li-bin, XU Sheng-quan.

Introduction Large bridges will cause material degradation , structural members damage in the long-term use or under the action of great load of bridge structure [1].
Failure internal force regulations: ①Failure bending moment: It is expressed byand when rod element section is only under positive moment or negative moment;②Failure axial force: It is expressed byand when rod element section is only under tensiled or compressed.Sometime, and,and are not equal(as shown in Fig.2).The reason is asymmetry state on material type, geometry, stress and strain of engineering structure.
Therefore, in the future design, it is necessary to consider some structural material plasticity, which can give full play to the mechanical properties of structural material
Journal of Henan University (Natural Science, 2007, 37(5):533-539. in Chinese

Introduction As new reaction medium and functional materials, ionic liquid (IL) has caught great interests of scientists in chemistry, physics, material science, and biology in academia and industry field extensively[1,2].
When putted the gallium liquid into glass crucible, the gallium electrode was obtained.The aluminum reference electrode was an aluminum wire immersed in a 60.0/40.0 molar ratio AlCl3-BMIC melt that has been putted into treated empty calomel electrode, which can make the current through but block material exchange.
Carpenter: AIChE Journal Vol. 36 (1990), p. 1097

Dynamic Simulation of FCCU under Abnormal Condition Wende Tian1,2,a, Shanjun Mu1, Manman Jin2,b, Chunli Wang1 and Chuankun Li1 1State Key Laboratory of Chemicals Safety, Qingdao Safety Engineering Institute, SINOPEC, Qingdao, Shandong, China 2College of Chemical Engineering, Qingdao University of Science & Technology, Shandong Qingdao, China aemail: tianwd@qust.edu.cn, bemail:1024515524@qq.com Keywords: catalytic cracking; dynamic simulation; abnormal condition Abstract.
Most of the materials are hazardous chemical goods of group A, with high temperature and pressure’s chemical reactions [2].
Raw material oil input the storage tank by the pump, then through two heat exchanger, the temperature increased from 90 ℃ to 236 ℃.
Operated data and the corresponding material property data from Yanshan petrochemical are used to determine the kinetic parameters, the objective functions are the residuals of each component’s yield and measured values.
Development and parametric Design of Simulation System of Chemical Process[J].Journal of Lanzhou Jiaotong Univercity,2008 27(3) 71-73

·Material characteristic parameters.
Material stacking caused by unreasonable construction organization can also lead to larger error [5].
Acknowledgements This work was financially supported by Hebei Natural Science Foundation Project (E2012401044), and Tangshan Technology Bureau Project (111302015b).
[3] Shi Z Y, Law S.S, Zhang L M,Optimizing sensor placement for structure damage detection[J], Journal of Engrg Mech, ASCE, 2000,126(11):1165-1180
Smart Structures and Materials, San Diege, 2002:1690-5011

Isotope chemical exchange balance equation is given by (1) Material balance equation of component i in plate j is expressed as follows: (2) Chemical exchange reaction balance equation is expressed as follows: (3) Molar fraction additive equations are expressed as follows:, .Liquid phase molar fraction of component i can be calculated by liquid holdup in plate j as follows: (4) Total material balance equation from the top of column to plate j is expressed as follows: (5) Substituting Equation (5) into Equation (2) gives the evolution equation as follows: (6) When j = N, .
Dynamic variation of 10B component at column bottom Results and Discussion In the system, material balance and isotope balance are the main factors that can affect the columns operation, furthermore, the feed flow rate and components dominate the change of material balance, and the temperature of column affects the isotope balance.
Computers and Chemical Engineering , 2001,25: 603~612 [5] Ovejero G, van Grieken R., Simulation of multicomponent distillation using a nonequilibrium stage model., Separation Science and Technology, 1994, 29(14): 1805~1815 [6] Taylor R,Power M F, et al., European Federation of Chemical Engineering Publication Series, 1987, 62: B321~330 [7] Taylor R,Kooijman H A, Institution of Chemical Engineers Symposium Series, 1992, 1(l28): A145~152 [8] Kooijman, H A., Taylor R., Nonequilibrium model for dynamic simulation of tray distillation columns, AIChE, 1995, 41(8): 1852~1863 [9] Baur R., Comparison of equilibrium stage and nonequilibrium stage models for reactive distillation, Chemical Engineering Journal, 2000, 761(1): 33~4 [10] Agarwal S, Taylor R., Distillation column design calculations using a nonequilibrium model, Industrial & Engineering Chemistry Research, 1994, 33 (11): 2631~2638

Since viscosity-reducer is added into WMA, cementing material’s viscosity can be effectively reduced and thus to achieve the purpose of decreasing mixing and compaction temperature while guaranteeing mixture’s pavement performance.
Correlative research shows that when the compaction temperature is different, pavement performance of WMA is different, even if same materials are composed with same compaction method in making WMA.
Material Composition of WMA This paper selects 3 varieties of WMA to conduct a comparative study.
References [1] C.H.Cai, Y.D.Cao and J.Yan: Shanghai Construction Science & Technology, Vol. 6(2006), p. 30 (In Chinese) [2] F.Zuo, F.Ye: Journal of China & Foreign Highway, Vol. 27(2007), p. 164(In Chinese) [3] S.F.Xu, B.Yan and J.Ji: Highway, Vol. 7(2005), p. 195(In Chinese) [4] G.C.Hurley, B.D.

Acknowledgement This work was financially supported by the Shandong Provincial Natural Science Foundation ( Y2008F58 ).
Journal of Vibration and Shock.
[5] Gao Liyan, Continuum Method and Effect Analysis of Energy Dissipation System for High-rise Shear-wall Structure, Advanced Materials Research.
Vol.224 (2010), pp.170-174 (2011 International Conference on Green Building Technologies and Materials )

Research of special form for analysis properties in transmit channels of NDT system Hongwu Qin 1, a, Xiaoliwang1,b, Qinsheng Du 2, c 1 School of Electronic and Information Engineering, Changchun University, Changchun, China 2 School of Computer Science and Technology, Changchun University, Changchun, China a hongwuqin@yahoo.com.cn, b wxllb2002@sina.com, c duqsh@sina.com, Keywords: AE, AFC, transmit channels, spectral characteristics Abstract.
It is well-known that material AE is the process of producing elastic waves, provoked by local dynamic reconstruction of its structure.
It is important to give much attention to cracks formation and development as emergency situations and breakdowns at industrial facilities are commonly stipulated by formation and further development of cracks in material of the survey item.
Some aspects of acoustic emission signal processing [J].Journal of Materials Processing Technology.2001, 109:242～247