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Online since: December 2012
Authors: Yun Rong Luo, Yi Guo, Qingyuan Wang
The number of cycles to failure for each specimen was recorded as the fatigue life.
The recorded peak and valley stress values at various numbers of cycles were used to calculate corresponding mean stresses in this study.
The cavitations may origin from the nucleation of voids at second phase particles or grain boundary ledges [15].
The recorded peak and valley stress values at various numbers of cycles were used to calculate corresponding mean stresses in this study.
The cavitations may origin from the nucleation of voids at second phase particles or grain boundary ledges [15].
Online since: January 2014
Authors: Rui Chen, Shi Gong Long
This protocol is described below:
A→KDC:A,B,
KDC→A:
A→B:
B→A:
A→B:
Above the protocol,is a disposable random number which is generated by A,is a disposable random number which is generated by B,is the shared key between A and KDC,is the shared key between B and KDC.
Modular safety checking for fine-grained concurrency [J].
Modular safety checking for fine-grained concurrency [J].
Online since: January 2014
Authors: Ji Qi, Guan Gran Sun, Chen Niu, Bin Zhao, Naisen Yu
By comparing the results with V2O5 standard JCPDS card (PDF ID number 41-1426) of XRD data documents, there were no impurity peaks to be found in the diffraction pattern.
By comparing the results with standard JCPDS card (PDF ID number 43-1051) of XRD data documents, the product sample was a match to monoclinic phase group C2/m with lattice constants a = 5.743Å , b = 4.517Å, and c = 5.375Å.
Scanning electron microscope (SEM) results showed that the grain size distribution of the VO2 nanocrystal is mainly in rod-like and block-like as seen in Fig. 3.
By comparing the results with standard JCPDS card (PDF ID number 43-1051) of XRD data documents, the product sample was a match to monoclinic phase group C2/m with lattice constants a = 5.743Å , b = 4.517Å, and c = 5.375Å.
Scanning electron microscope (SEM) results showed that the grain size distribution of the VO2 nanocrystal is mainly in rod-like and block-like as seen in Fig. 3.
Online since: February 2014
Authors: Jin Huan Zhang, Hong Li Zhang
(4)
Where, The symbols of Nd is the number of dynamic and effective grinding in grinding zone; The symbols of is the average tangential grinding force in TUAG; The symbols of is the average normal grinding force in TUAG.
The grains of CBN grinding wheel are 140#, the density is 100% and the diameter is Ø50 mm.
Tabel 1 Test factors and levels Test number Grinding wheel speed n/(r·min-1) Workpiece speed vw/(mm·min-1) Grinding depth ap/mm 1 3000 150 0.005 2 4500 200 0.010 3 6000 350 0.015 4 7500 400 0.020 Analysis of Experiment Results.
The grains of CBN grinding wheel are 140#, the density is 100% and the diameter is Ø50 mm.
Tabel 1 Test factors and levels Test number Grinding wheel speed n/(r·min-1) Workpiece speed vw/(mm·min-1) Grinding depth ap/mm 1 3000 150 0.005 2 4500 200 0.010 3 6000 350 0.015 4 7500 400 0.020 Analysis of Experiment Results.
Online since: February 2014
Authors: Miao Wu, Xue Di Hao, Fu Yan Lv, Zheng Meng Xia, Jie Gao
Introduction
High concentrations and viscous solid wastes refer to solid-liquid two-phase wastes or byproducts with high solid content, viscosity, and fine grain size, which are produced in industry and municipal sewage treatment processes.
Suspensions are also prevalent in a number of natural settings such as debris flow, lava flow, and flood waves carrying extremely high concentration of sediments [2].
Apparent wall slip of particles is one such phenomenon and this has attracted large number of studies [3][4].
Suspensions are also prevalent in a number of natural settings such as debris flow, lava flow, and flood waves carrying extremely high concentration of sediments [2].
Apparent wall slip of particles is one such phenomenon and this has attracted large number of studies [3][4].
Online since: February 2016
Authors: Olga V. Rozhneva, Olga V. Shefer, Vitaliy V. Loskutov
Research
At single-frequency polarization laser sensing four (the number of parameters of the Stokes vector) detection channels may be used simultaneously.
Theory, measurements, and application, Academic press, International standard book number: 0-12-498660-9, California, USA, 2000
Witt, Size and shape of ice grains in the mesopause region, Int.
Theory, measurements, and application, Academic press, International standard book number: 0-12-498660-9, California, USA, 2000
Witt, Size and shape of ice grains in the mesopause region, Int.
Online since: March 2004
Authors: Long Chen Duan, X.Y. Liu, Fu Ling Tang, Xiao Liang Shi
Fig.1 reveals that rare-earth element lanthanum can make the crystal grain of matrix small and
spherical, and decrease impurity contents in the matrix, while matrixes with too much or less Journal Title and Volume Number (to be inserted by the publisher) 99
lanthanum will contain excessive impurity.
Therefore it is reasonable to choose the number 2-matrix formula of 15 percent binder, while is doping 0.5 percent lanthanum in weight, as the matrix of diamond enhanced rare-earth & iron-rich carbide tungsten composite button.
Therefore it is reasonable to choose the number 2-matrix formula of 15 percent binder, while is doping 0.5 percent lanthanum in weight, as the matrix of diamond enhanced rare-earth & iron-rich carbide tungsten composite button.
Online since: September 2013
Authors: Qi Ling Luo, Bi Qin Dong, Wu Jian Long, Wei Lun Wang
Based on the theory of granularity, a variety of grain size of material mixed proportionally, so that gaps between particles with different particle size of granular were filled to achieve higher accumulated efficiency, resulting in concrete mixture with excellent workability and mechanical properties.
By definition, two is the number of levels of each factor investigated; four is the number of factors investigated.
By definition, two is the number of levels of each factor investigated; four is the number of factors investigated.
Online since: December 2014
Authors: Jing Nie, Shou Zhi Yi
The anode surface coating must have tiny crackle with complex microstructure like tiny pores and grain boundary, which makes actually active electrode surface far exceed surface calculated mathematically.
Based on this, we can calculate the number of active sites with equation (3)
Then we can get the amount of active sites, which is 0.0793 C/cm2, according to equation (3), and this number is the cyclic voltammograms power of the DSA electrode used in the experiment.
Based on this, we can calculate the number of active sites with equation (3)
Then we can get the amount of active sites, which is 0.0793 C/cm2, according to equation (3), and this number is the cyclic voltammograms power of the DSA electrode used in the experiment.
Online since: January 2013
Authors: Hui Chen, Guo Qing Gou, Yan Liu, Ming Jing Tu
Table 1 Powder characteristics
Feedstock powder Feedstock size/μm WC grain size
Nanostructured WC-12Co 5~45 50-500nm
The Q235 (GB/T 700-2006) was used as substrate.
It can be seen from (Fig.3 (i) (j)) that a large number of erosion pits were produced and a lot of WC particles is about to be pulled out.
In the 25-30min range, the coating has been basically worn out, exposing a large number of the base surface.
It can be seen from (Fig.3 (i) (j)) that a large number of erosion pits were produced and a lot of WC particles is about to be pulled out.
In the 25-30min range, the coating has been basically worn out, exposing a large number of the base surface.