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Online since: April 2014
Authors: W.Y. Chu, Fan Yan Meng, X.Q. Ma, Lie Jie Qiao, D. Li
The propagation of cracks along the grain boundaries (GBs) [17] and interaction between the microstructure and corrosion environment [18] in alloys have been studied.
The single crystal includes at total of 112665 atoms and the number of atoms of the twin crystal is 104668.
The twin boundary separate the sample into two parts: one part is the original grain orientation; the other part is the mirror image of this part in the (112) twin plane.
Online since: January 2013
Authors: Hong Chao Kou, Ruo Lin Li, Xiang Hong Liu, Ting Li Lu, Q. Li, Lian Zhou, Guang Sheng Xu
The cell numbers were equal in each well (5 × 104/ml) at the beginning of each experiment.
However, upon incubation of the cells with some of the discs their numbers sig-nificantly changed in time and this is reflected by changes in numbers of adhering cells as macrophages must adhere in order to survive in in vitro conditions.
As can be seen from the photos that hydroxyapatite distribution is more dispersive, where some of the original surface slices grain is visible, and some distribution is obvious on the porous titanium surface without precalcified.
The number of cells on all specimen are less than that of standard sample (Control) cell number, no matter the surface modified or not.
Cell numbers cultivated 7 days are obviously higher than that of the cell number cultivated 3 days.
Online since: May 2012
Authors: Meng Hua Xiao, Li Li Kong, Jun Wang, Sheng Shen Xie, Chun Xiao Fu, Shuan Gen Yu
Introduction Rice is the main grain crop of China, rice production in agricultural production occupies an important position.
The number of frost-free days is 220 per year.
The input vectors were farmland water level, submerging duration, air temperature, solar radiation, wind speed and air relative humidity values of each treatment at the specific moments, i.e., the network input layer unit number n = 6; the output vector was soil temperature of each treatment at specific moments, i.e., the output layer unit number m = 1.
The determination of the nodes number of hidden layer is referred to the calculating formula (2): (2) Where, n is for the notes number of input layer, m is for the nodes number of output layer, constant a =1~10.
For example, selecting input and output of 8 kinds of water level management at 6: 00 as training samples, the number of hidden layer nodes values were in [4, 13], in order to determine the optimal number of hidden layer nodes, it was separately trained neural network on the notes number from 4 to 13, taking the training error, error curve, the degree of smoothing, the convergence speed, and the number of nodes into consideration, the number of hidden layer nodes was selected 7 notes.
Online since: February 2015
Authors: Ming Xue Zhang, Bai Ze Kai, Lei Zhou
Through the study of a large number of core, logging, and logging data, on the basis of previous research (Nantun Formation is divided into two period which are the first member of Nantun Formation and the second member of Nantun Formation), combined with the characteristics of the seismic, the sedimentary facies of Wunan sub depression is researched.
The fan delta plain with a plurality of coarse to medium grained positive cycle is dominated, with small amount of fine sand to mud deposit, in sandstone the bottom scour and trough cross bedding could be observed usually.
Online since: November 2011
Authors: Man Li, Jing Yu Tong, Yu Bai, Dong Bo Tian, Bin Wang, Zhi Hao Wang
When the grain size and shape distribution are affirmed, the particles of different classes can be mixed by mixing machine.
Focused Beam Reflectance Measurement (FBRM) instrument can be highly sensitive and accurate measurement of particle size and particle number changes.
With the number / length / distribution can range from the distribution of precipitation designated to improve resolution.
Vacuum chamber subsystem could simulate vacuum, high and low temperature range environment of the moon, with the deuterium lamp in it which used to provide the UV light source; The turntable subsystem with the simulated lunar dust is used to provide carrying mechanism for lunar rover wheel; simulated lunar dust manufacture subsystem could manufacture simulated lunar dust for rover wheel terramechanics test; test subsystem could test the velocity, electricity charge, size and number of the lunar dust partial.
Online since: September 2014
Authors: Yan Hong Zhao, Hu Zhu Zhang
The number of each parallel mixture specimens was 13.
With the exception of lime and fly-ash stabilized coal gangue base, other pavement layer adopts the same material and thickness, and the surface layer adopts 5cm medium grained asphalt concrete.
Tab.8 Transverse crack observations of test road code number of crack average crack length/m average crack width /mm code number of crack average crack length/m average crack width /mm A1 6 5.89 4.95 A3 5 5.01 5.26 A2 5 4.76 4.15 A4 7 6.23 6.10 As can be seen from table 8, the results in transverse crack observations of test road are consistent with laboratory test results.
Online since: September 2013
Authors: Ting Huang, Wei Huang, Kun Song, Ming Jie Gao
Therefore, building the visualization display and analysis system, controlling the wind farm real-time running state and mining operation rules from a large number of historical data to specify the wind turbines operation strategy is of great significance.
The system stores fine-grained data of certain period, provides a part of query function and cleanses non-standard data, which gets ready for data warehouse/mart.
(iv) Unified configuration of the system security strategy Business integration platform can provide unified security strategy for the system, including allocation strategy of the online number of users, user waiting time, instance number in the component instance pool, user password and other security options, and can make configuration changes flexibly.
Online since: January 2014
Authors: Lei Tang, Yong Zhang, Xiao Hui Ying
This message contains detailed information about the number of DPT, GPS message, sensor message and so on.
As the server knows the number of sensors hosted on each node, the DPT only needs to send the raw data obtained by the sensors, in the correct order.
Because of the increasing of the node number due to the addition of a satellite communication and rescue system.
[2] Kezhong Liu, Ji Xiong, A Fine-grained Localization Scheme Using A Mobile Beacon Node for Wireless Sensor Networks(expand)[J].Journal of Information Processing Systems, Vol.6, No.6, Sep 2010, pp:147-162
Online since: September 2009
Authors: Bing Suo Pan, Zhan Yang, Kai Hua Yang
Table 2 Experimental scheme of matrix formula of iron-based matrix with high phosphorus Number x1 x2 x3 x4 x5 Fe-P(B) WC 663Cu Ni-Co Mn-Ti etc. 1 0.53 0.14 0.18 0.09 0.06 2 0.48 0.19 0.18 0.10 0.05 3 0.40 0.16 0.25 0.12 0.07 4 0.36 0.20 0.23 0.11 0.10 5 0.32 0.26 0.20 0.10 0.12 6 0.31 0.16 0.30 0.12 0.11 7 0.30 0.29 0.27 0.09 0.06 8 0.29 0.18 0.20 0.22 0.11 9 0.28 0.20 0.27 0.21 0.05 10 0.25 0.24 0.23 0.19 0.08 11 0.24 0.27 0.31 0.09 0.10 12 0.23 0.16 0.22 0.21 0.17 13 0.23 0.30 0.20 0.17 0.10 14 0.22 0.18 0.29 0.21 0.09 15 0.21 0.33 0.26 0.15 0.05 16 0.19 0.42 0.20 0.13 0.06 Table 1 Content range of composition Element Content range notes Fe-P (B) (x1) 0.18≤x1≤0.54 Fe-P, Fe-B alloy added with iron powder WC (x2) 0.14≤x2≤0.42 663-Cu (x3) 0.18≤x3≤0.32 Ni-Co (x4) 0.09≤x4≤0.22 The ratio of Ni to Co is 2 :1 Mn-Ti-Si etc.
Table 3 Testing results of matrix performances Testing number Hardness [HRB] Wear resistance [g] Testing number Hardness [HRB] Wear resistance [g] 1 110.96 0.10 9 97.38 0.15 2 112.82 0.09 10 95.08 0.20 3 107.08 0.12 11 99.63 0.21 4 105.47 0.13 12 96.80 0.15 5 104.97 0.11 13 98.71 0.14 6 100.16 0.14 14 98.32 0.16 7 102.72 0.16 15 97.10 0.17 8 96.47 0.19 16 93.10 0.24 Regression Analysis.
The rock formation which has strong abrasiveness is adamellite with biotite of medium-fine grain size, whose drillability is nine-grade.
Online since: December 2012
Authors: Gang Wu, Hai Wei Lu, Chen Jun Yang, Rui Ma, Dong Fei Zhang
And we can compare the two models in Table 1: Table 1: The similarity between two models Model Status Trigger Factor Event Sand Pile Model Angle changing Increase grains of sand Sand pile collapse CFF Model System components be impacted Inclement weather is continuing System components are damaged The components are damaged as the power law distribution characteristic in inclement weather.
(9) Where represents the failure probability of single component, is the number of components that can result in the loss of node load.
(10) Where represents the probability of the loss of node load, is the repairing time of faulty component, is the number of components that can result in the loss of node load.
(12) Where is the node load, is the probability of the loss of node load, is the number of the node load, is the power shutdown time of node load.
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