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Online since: November 2011
Authors: Hui Huang, Bu Ming Chen, Zhong Cheng Guo
The scanning potential range is 0V ~ +1.6 V (vs SCE) (the potential range is between hydrogen evolution potential and the deposition potential of a large number of O2) at a scan rate is 50mV•s-1. q* can be obtained  through the measured CV curves of different  PbO2 electrodes which is integrated in Table 3.
Futhermore, from the figure 2, it shows that the electrode 2# is fine grain size, large surface area, so the catalytic activity of this electrode is very good.
Online since: January 2014
Authors: Hui Lin Wang, Ping Kuan Zhang, Wang Lu Sun
The grain size of the abrasive should be larger in the possible, which could increase the cubic of the vacuole in the grinding-driller, convenient for chip reception.
Even for the organization of the grinding-driller, the number of the abrasive should be produced to increase the space of chip reception under the condition of taking shape of grinding-drill.
Online since: February 2013
Authors: Ai Xue Sha, Xing Wu Li, Li Jun Huang, Qing Rui Wang
The reason is that with increasing in deformation, metal atomic kinetic energy increases, and amplitude of atomic thermal vibration also increases, making displacement activity and slip system increase, so as to improve deformation compatibility between crystal grains.
While with increasing in strain rate, deformation time of unit strain reduces, and the number and the speed of dislocation movement increase, which makes the chance of dislocation crisscross and the density of balancing dislocation increase, so as to raise critical shear stress.
Online since: January 2017
Authors: Fazeera Ujin, Kamran Shavarebi Ali, Zarina Yasmin Hanur Harith
Introduction A large number of solid waste materials generated in industrialised nations nowadays which not only directly in the home, but indirectly from factories as well.
It is believed that at this ratio, the microstructre of the concrete is stronger because the grains are binded closer which improve its density.
Online since: July 2020
Authors: Putu Hadi Setyarini, Purnomo Purnomo, Dwi Hadi Sulistyarini, Aski Asfia
Hardness number of NBR with various fillers From the data above it can be seen that each alloy gives a different effect.
Increasing hardness is caused by the presence of an optimum amount of reinforcing filler, which will increase the hardness, wherein the strengthening effect of the filler is determined by particle size, surface condition, shape, grain fineness and even distribution.
Online since: June 2008
Authors: Reinhard Pippan, Richard Stock, Anton Hohenwarter
In the last decades a variety of studies have shown that severe plastic deformation (SPD) is capable of producing materials with remarkable physical and mechanical properties due to a strong grain refinement [3,4].
(1) Here r is the radius, tm is the average thickness calculated of the thicknesses before and after deformation and n is the number of rotations.
Online since: June 2012
Authors: Da Feng Gao, Peng Fei Li, Lei Wang
Table 2 Wood material attributes Elastic Modulus(MP) Poisson's Ratio Shear Modulus(MP) Longitudinal Radial, tangential Arrange grain shear, radial cross-section String section, Radial section Tangential, longitudinal Longitudinal, radial Radial, tangential 9702 1955 0.106 0.352 0.520 609 971 218 Model 2: corresponding reinforced concrete structure finite element of model The coordinate value of model 2 exactly the same with that of model 1.
(a)time-acceleration interval curve of model 1 (b)time-acceleration interval curve of model 2 (Taft wave 70Gal) (Taft wave 70Gal) (c)time-acceleration interval curve of model 1 (d)time-acceleration interval curve of model 2 (El-Centro wave 220Gal) (El-Centro wave 220Gal) (e)time-acceleration interval curve of model (f)time-acceleration interval curve of model 2 (Lanzhou artificial wave 400Gal) (Lanzhou artificial wave 400Gal) Fig.5 Time-acceleration interval curve Table 4 Peak acceleration and Peak displacement position Node number Displacement(cm) Acceleration(Gal) Model 1 Model 2 Model 1 Model 2 Model 1 Magnification factor Model 2 Magnification factor Taft(70Gal) Column feet 1053 1017 0.426 ─— 58.03 0.829 ─— ─— Column top 1092 1056 2.475 0.867 39.08 0.656 467.8 6.683 roof 8055 7771 2.544 0.971 34.51 0.909 529.6 1.132 El-Centro(220Gal) Column feet 1053 1017 1.381 ─— 200.6 0.912 ─— ─—
Online since: September 2012
Authors: Jin Bao Li, Hui Juan Xiu, Mei Yun Zhang, Xin Ping Li
If the cellulose concentration of the casting solution keeps no change, the higher content of high DP cellulose, the less cellulose molecules number is, the slimmer chances of the celluloses collision and hydrogen bonds forming will become, the less initial micro aggregates and final cellulose aggregates will be formed.
This is due to the more irregular arrangement of cellulose molecules that cause insufficient growth of the grain during the course of solidification [5].
Online since: March 2004
Authors: Seung Boo Jung, Ji Hun Oh, S.G. Kim, Yong Hyeon Shin, H.J. Kim
And also in order to be properly applied to acoustic wave devices, polycrystalline ZnO thin films must meet two requirements; c-axis orientation parallel to the plane of the substrate and a columnar structure with void-free grain boundaries.
Film growth rate can exactly controlled films thickness because growth rate is not sensitive to process condition for example time, volume of source and flux but proportional to source supply cycle numbers.
Online since: December 2012
Authors: Xue Min Zhang, Hua Bei Nie
“Native XML database” is used to manage the large number of XML data, and obtains recognition and strong supporting of industry, the relational products and models are published constantly.
This method is based on the fine grained storage of element, which provides 100% character of “return access”.
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