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Online since: July 2014
Authors: Zheng Xia Zhang, Si Qiu Xu, Er Ning Zhou, Xiao Lin Huang, Jun Wang
In this paper, the complexity analysis method based on Jensen-Shannon Divergence was used to calculate the complexity of the idle states, the close eyes states and the count numbers states electroencephalogram.
The principle For time series x whose length is N, {x(i):1iN}, given time scale factorτ, the original time series x coarse graining [18] according to the following ways: (1jN/τ) (1) We denoted p1; p2 as two probability distribution of discrete random variables X while (1) stands for the KULLBACK direct difference I
The principle For time series x whose length is N, {x(i):1iN}, given time scale factorτ, the original time series x coarse graining [18] according to the following ways: (1jN/τ) (1) We denoted p1; p2 as two probability distribution of discrete random variables X while (1) stands for the KULLBACK direct difference I
Online since: January 2017
Authors: Qiang Luo, Qing Li Ren
Moreover, the magnesium hydroxide grains grow bigger as the preparation reaction time is increasing.
Acknowledgments This work was supported financially by the New Experimental Development of Xidian University of China, where the projects number is SY1469.
Acknowledgments This work was supported financially by the New Experimental Development of Xidian University of China, where the projects number is SY1469.
Online since: August 2013
Authors: Zi Lin Li, Jiang Xue, Hong Yi Ding, Yi Du
This paper proposes the following three aspect improvements by inspecting a large number of documents and information.
According to their role in the strengthening mechanism of steel, common alloying elements can be divided into: solid solution strengthening element(Mn, Si, Al, Cr, Ni, Mo, Cu); grain refinement element(Al, Nb, V, Ti, N); precipitation hardening element(Nb, V, Ti); and phase transformation strengthening element(Mn, Si, Mo).
According to their role in the strengthening mechanism of steel, common alloying elements can be divided into: solid solution strengthening element(Mn, Si, Al, Cr, Ni, Mo, Cu); grain refinement element(Al, Nb, V, Ti, N); precipitation hardening element(Nb, V, Ti); and phase transformation strengthening element(Mn, Si, Mo).
Online since: October 2013
Authors: Yu Guo Wang, Bin Lin, Yan Fei Diao, Li Jie Li
Experimental Device and Test Method
Experiments are taken on surface grinding machine HZ-63 with water-based coolants, the wheel used in the experimental investigation is a diamond grinding wheel with coarse grain of 100 and B 75.The test samples are zirconia ceramics and alumina ceramics with the size of 30mm×10mm×15mm.
Acknowledgement This project is supported by the National High Technology Research and Development Program of China (863 Program, 2013AA040103) and the National Science and Technology Major Project (under the contact number 2013ZX04006011-207).
Acknowledgement This project is supported by the National High Technology Research and Development Program of China (863 Program, 2013AA040103) and the National Science and Technology Major Project (under the contact number 2013ZX04006011-207).
Online since: February 2012
Authors: Wei Ling Yang, Zai Cheng Wang, Chun Lan Jiang
Fig 4 Configuration of flying-plate Fig5 Simulation model of flying-plate system
As the configuration of flying-plate is an axisymmetric structure, a quarter of the whole model is established in order to reduce number of grid and computing time.
Experimental Study on the Small Flyer Initiating Behavior of Fine-grained Explosives[J].
Experimental Study on the Small Flyer Initiating Behavior of Fine-grained Explosives[J].
Online since: September 2013
Authors: Zhong Ning Du, Xiao Lei Zhou
In the experiment, the paraffin and the corn grain with the diameter 3 mm are respectively used to simulate DRI, coke and lump coal.
Similarly, the blast volume of model is calculated by using the Froude number[12].
Similarly, the blast volume of model is calculated by using the Froude number[12].
Online since: June 2012
Authors: Ming Li Qin, Lin Zhang, Xuan Hui Qu, Ye Liu, Xin Bo He
The number density of the white phase was significantly reduced and the size is larger than that of the alloy without the addition of Ni, as indicated in Fig. 1b.
High volume fraction of γ´ precipitates, high population oxide dispersion and fine-grained microstructure are responsible for the increase of internal stress, leading to the propagation of cracks [14-15].
High volume fraction of γ´ precipitates, high population oxide dispersion and fine-grained microstructure are responsible for the increase of internal stress, leading to the propagation of cracks [14-15].
Online since: February 2023
Authors: Chin Hua Chia, Rafidah Abd Rahman, Noor Azlina Masdor
Colony forming unit (cfu/ml) values revealed that the number of viable cells decreased with high concentrations of ZnO-NP whereas minimal inhibition was observed at lower ZnO-NP concentrations.
At higher calcination temperatures, zinc and oxygen defects at grain boundaries causing merging of grains and resulting in increased crystal size and diffraction peak intensity.
Acknowledgements We thank Malaysia Toray Science Foundation for financial assistance through project number (18/G440).
At higher calcination temperatures, zinc and oxygen defects at grain boundaries causing merging of grains and resulting in increased crystal size and diffraction peak intensity.
Acknowledgements We thank Malaysia Toray Science Foundation for financial assistance through project number (18/G440).
Online since: December 2013
Authors: Quan Bing Yang
The test is finished if the rotation number of the test comes to 5000 revolutions or the abrasive depth of the specimen is over 1.5 mm, which these data are automatically recorded by meters.
With the increase in the cycle number, the difference in the ability of these materials to protect reinforcing steel from corrosion becomes bigger.
According to Chinese test method GB/T16925-1997, the abrasion depth of MPB mortar and concrete was 0.32 mm and 0.28 mm respectively after the rotation number of 5000.
Dead burnt MgO powder used here contains many coarse grains (a specific surface of <2000 cm2/g) and they possess very high abrasion resistance.
A lot of unhydrated MgO grains in the hardened MPB have a function of fine wearable aggregates, so the MPB materials have high abrasion resistance. 4.6 Strength loss It seems that there is one shortcoming for MPB materials stored in water for a long time [5].
With the increase in the cycle number, the difference in the ability of these materials to protect reinforcing steel from corrosion becomes bigger.
According to Chinese test method GB/T16925-1997, the abrasion depth of MPB mortar and concrete was 0.32 mm and 0.28 mm respectively after the rotation number of 5000.
Dead burnt MgO powder used here contains many coarse grains (a specific surface of <2000 cm2/g) and they possess very high abrasion resistance.
A lot of unhydrated MgO grains in the hardened MPB have a function of fine wearable aggregates, so the MPB materials have high abrasion resistance. 4.6 Strength loss It seems that there is one shortcoming for MPB materials stored in water for a long time [5].
Online since: September 2013
Authors: Yun Dong, Yong Cun Wang, Li Guo Lu, Wei Wang
To discovery the affection of the shearing surface on the direct shear strength, three different calculation methods of shear surface and its affection on the shear strength were put forward based on the new mathematical model and large number of experimental with improvement direct shear apparatus, the new calculation method makes the result more accuracy and closer to the really shear strength of the samples.
Development of New Testing Apparatus on Direct Shear Test for Coarse-grained Soils[J].Journal of Sichuan University(Engineering Science Edition), 2008,40(4):12-16,in Chinese
Development of New Testing Apparatus on Direct Shear Test for Coarse-grained Soils[J].Journal of Sichuan University(Engineering Science Edition), 2008,40(4):12-16,in Chinese