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Online since: May 2011
Authors: Xian Mai Chen, Xia Xin Tao, Gao Hang Cui, Fu Tong Wang
Based on a lot of inspected track irregularity data, the reference [2] proposed a set of general track spectra of Chinese main railway lines (ChinaRLS).
All the time series simulated track vertical profile irregularities are shown in Fig.3 by box and whisker plot, in which the height of every group represents the numerical range of the data, and the “boxes” represent the 25th through the 75th percentile and the horizontal line inside the box is the median value (or the 50th percentile).
According to Fig.5, the sequence of the rates of wheel load reduction of locomotive is the 200km/h of ChinaRLS < the 120km/h of ChinaRLS < the 160km/h of ChinaRLS < the 6th of AmericaRLS.
The sequence of rates of wheel load reduction of vehicle is the 200km/h of ChinaRLS < the 160km/h of ChinaRLS, while the values of the rates of wheel load reduction caused by the 120km/h and the 6th are 1, which are beyond the limits of derailment.
If those abnormal data are excluded, the order of size of the wheel-rail interaction forces of vehicle is similar to locomotive.
All the time series simulated track vertical profile irregularities are shown in Fig.3 by box and whisker plot, in which the height of every group represents the numerical range of the data, and the “boxes” represent the 25th through the 75th percentile and the horizontal line inside the box is the median value (or the 50th percentile).
According to Fig.5, the sequence of the rates of wheel load reduction of locomotive is the 200km/h of ChinaRLS < the 120km/h of ChinaRLS < the 160km/h of ChinaRLS < the 6th of AmericaRLS.
The sequence of rates of wheel load reduction of vehicle is the 200km/h of ChinaRLS < the 160km/h of ChinaRLS, while the values of the rates of wheel load reduction caused by the 120km/h and the 6th are 1, which are beyond the limits of derailment.
If those abnormal data are excluded, the order of size of the wheel-rail interaction forces of vehicle is similar to locomotive.
Online since: March 2013
Authors: Xue Min Huang, Shu Lai Wen, Quan Sheng Wang, Xiu Chen Zhao, Ying Liu
Introduction
In recent years the synthesis of ultrafine magnetic cobalt particles has received increasing attention due to their unique physicochemical properties, which makes them desirable in many technological applications, such as magnetic fluids, catalysis, and absorbing material including high-density data information storage [1,2].
Cobalt particles can be synthesized using various techniques, such as hydrogen reduction [3], thermal decomposition [4], microemulsion methods [5], polyol method [6], and chemical reduction of cobalt salts by hydrazine hydrate [7].
The chemical reduction of cobalt salts by hydrazine hydrate is considered to be the most widely used method.
In this paper, we employ the chemical reduction of cobalt salts by hydrazine hydrate in different solvents, such as ethylene glycol and ethanol.
Hwang, et al., Preparation of cobalt nanoparticles by hydrogen reduction of cobalt chloride in the gas phase, Materials Research Bulletin. 39 (2004) 63-70
Cobalt particles can be synthesized using various techniques, such as hydrogen reduction [3], thermal decomposition [4], microemulsion methods [5], polyol method [6], and chemical reduction of cobalt salts by hydrazine hydrate [7].
The chemical reduction of cobalt salts by hydrazine hydrate is considered to be the most widely used method.
In this paper, we employ the chemical reduction of cobalt salts by hydrazine hydrate in different solvents, such as ethylene glycol and ethanol.
Hwang, et al., Preparation of cobalt nanoparticles by hydrogen reduction of cobalt chloride in the gas phase, Materials Research Bulletin. 39 (2004) 63-70
Online since: October 2011
Authors: Dong Mei Mu, Dao Li Huang, Wei Liu, Ji Hao
Based on user behavior analysis, using the information of data warehouse will be a reasonable quantification of qualitative indicators, draw the user a variety of potential semantic behavior, and user clustering and dimension reduction, the establishment of a recommendation based on user behavior analysis model .
Data Mining.
Data Warehousing and Data Mining for Telecommunications[M]ARTECH HOUSE,1997
Principles of Data Mining [M].
Data Preprocessing and Dimension Optimization in Data Mining [J].
Data Mining.
Data Warehousing and Data Mining for Telecommunications[M]ARTECH HOUSE,1997
Principles of Data Mining [M].
Data Preprocessing and Dimension Optimization in Data Mining [J].
Online since: December 2025
Authors: Abubaker A. Sharif, Ibrahim A. Amar
Data were collected over a 2θ range of 5° to 100°.
The resulting data reliably demonstrate that La₀.₃Sr₀.₇Ti₀.₈Fe₀.₂O₃-δ (LSTF) and the LSTF–CGDC composite retain their cubic perovskite and fluorite crystal structures under relevant operating conditions.
Taken together, these literature precedents and thermal-atmosphere XRD data strongly suggest that the catalysts retain their integrity during ammonia synthesis.
The data highlight significant challenges in electrochemical nitrogen reduction, particularly due to the HER, which competes with ammonia synthesis and reduces Faradaic efficiency.
Li, Recent progress in electrocatalytic nitrogen reduction.
The resulting data reliably demonstrate that La₀.₃Sr₀.₇Ti₀.₈Fe₀.₂O₃-δ (LSTF) and the LSTF–CGDC composite retain their cubic perovskite and fluorite crystal structures under relevant operating conditions.
Taken together, these literature precedents and thermal-atmosphere XRD data strongly suggest that the catalysts retain their integrity during ammonia synthesis.
The data highlight significant challenges in electrochemical nitrogen reduction, particularly due to the HER, which competes with ammonia synthesis and reduces Faradaic efficiency.
Li, Recent progress in electrocatalytic nitrogen reduction.
Online since: October 2011
Authors: Jian Rong Tang, Xu Dong Gao, Xiao Fang Wu
The CDM produces Certified Emission Reductions (CERs) and the JI produces Emission Reduction Units (ERUs).
Table 2 View of Project-based Market in 2005-2007 2005 2006 2007 Treading System Volume Turnover Volume Turnover Volume Turnover CDM: Primary market 341 2,417 537 5,804 551 7,426 CDM: Secondary market 10 221 25 445 240 5,451 JI 11 68 16 141 41 499 Other emission reduction obligations 20 187 33 146 42 265 Note: The data unit is million tones.
Allocating according to the historical gas emissions data is a commonly used method.
For the choosing of historical data, we can choose the representative year as well as the average gas emission data over the past few years in the calculation.
For the choosing of historical data, we can choose the representative year as well as the average gas emission data over the past few years in the calculation.
Table 2 View of Project-based Market in 2005-2007 2005 2006 2007 Treading System Volume Turnover Volume Turnover Volume Turnover CDM: Primary market 341 2,417 537 5,804 551 7,426 CDM: Secondary market 10 221 25 445 240 5,451 JI 11 68 16 141 41 499 Other emission reduction obligations 20 187 33 146 42 265 Note: The data unit is million tones.
Allocating according to the historical gas emissions data is a commonly used method.
For the choosing of historical data, we can choose the representative year as well as the average gas emission data over the past few years in the calculation.
For the choosing of historical data, we can choose the representative year as well as the average gas emission data over the past few years in the calculation.
Online since: May 2012
Authors: Wan Li Chao, Chang An Zheng, Bin Huang
The data is shown in Figure 2.
What’s more, the data in fig.2(c) is similar with the fig. 2(b), because the limitation of the permeability coefficient.
The temperature and humility data are recorded when the laboratory temperature is dropped to design temperature.
In this experiment, the data of every sensor is recorded.
According to the experiment results, the data of first three monitoring points is obviously influenced by air temperature.
What’s more, the data in fig.2(c) is similar with the fig. 2(b), because the limitation of the permeability coefficient.
The temperature and humility data are recorded when the laboratory temperature is dropped to design temperature.
In this experiment, the data of every sensor is recorded.
According to the experiment results, the data of first three monitoring points is obviously influenced by air temperature.
Online since: June 2013
Authors: Guo Jin Tan, Yong Chun Cheng, Yu Ping Shi
Related research data show that the ambient temperature can affect the natural frequencies of the continuous box-girder bridges.
Hoon Sohn presented a linear adaptive model to distinguish the changes of the bridge’s natural frequencies caused by the temperature and other factors, and verified the validity of the method based on the data of AlAMOSA gorge bridge[5].Ni Yi-qing used support vector machine to establish the relation model between modal frequency and the temperature[6,7].
According to the related research results, the change of temperature can change the concrete’s elastic modulus.The reduction factor has something to do with the rate of temperature change, which increases with the rate and causes more obvious reduction effects.
However, the change rate of the daily temperature difference field is generally below 10℃/h, and the general value of reduction factor under the daily temperature is 0.08.
The numerical analysis results show that the sunshine temperature filed exert certain influence on the natural frequencies of the continuous box-girder bridge, however, the influence extent is weaker than the influence of the elasticity modulus reduction.
Hoon Sohn presented a linear adaptive model to distinguish the changes of the bridge’s natural frequencies caused by the temperature and other factors, and verified the validity of the method based on the data of AlAMOSA gorge bridge[5].Ni Yi-qing used support vector machine to establish the relation model between modal frequency and the temperature[6,7].
According to the related research results, the change of temperature can change the concrete’s elastic modulus.The reduction factor has something to do with the rate of temperature change, which increases with the rate and causes more obvious reduction effects.
However, the change rate of the daily temperature difference field is generally below 10℃/h, and the general value of reduction factor under the daily temperature is 0.08.
The numerical analysis results show that the sunshine temperature filed exert certain influence on the natural frequencies of the continuous box-girder bridge, however, the influence extent is weaker than the influence of the elasticity modulus reduction.
Online since: June 2014
Authors: Xi Lei Huang, Mao Xiang Yi, Lin Wang, Hua Guo Liang
Literature [3] proposes a data compressionscheme based on mixed compatible data blocks.
Howeverbecause of the different range between test data blocks, it hasto be decompressed separately for each core, significantly increasing the cost.
But it needs a signal-control device,which not only increases hardware overhead, but also needs additional memory to control the test data of each core to scan in.
By test set sharing, it can effectively reduce the amount of test data and test application time, so as to achieve the purpose of reducing test cost.
[8] Chunlei Mei, Maoxiang Yiand Zhifei Shen: Decreasing SoC Test Power Dissipation and Test Data Volume Based on Pattern Recombination, International Joint Conference of IEEE.(2011)
Howeverbecause of the different range between test data blocks, it hasto be decompressed separately for each core, significantly increasing the cost.
But it needs a signal-control device,which not only increases hardware overhead, but also needs additional memory to control the test data of each core to scan in.
By test set sharing, it can effectively reduce the amount of test data and test application time, so as to achieve the purpose of reducing test cost.
[8] Chunlei Mei, Maoxiang Yiand Zhifei Shen: Decreasing SoC Test Power Dissipation and Test Data Volume Based on Pattern Recombination, International Joint Conference of IEEE.(2011)
Online since: December 2013
Authors: Tsair Rong Chen, Wen Chin Lin
Carbon reduction is not only aimed to save the Earth but also create a direct way to decrease personal and national loss in finance.
Every government starts to regulate more severe economic policies in carbon reduction.
Additionally, we must pay close attention to the items of carbon reduction and the stability of long-term energy supply.
National greenhouse gas reduction goals in 2020.
However, there is an inconsistent conclusion in the literature with different estimation procedures and data.
Every government starts to regulate more severe economic policies in carbon reduction.
Additionally, we must pay close attention to the items of carbon reduction and the stability of long-term energy supply.
National greenhouse gas reduction goals in 2020.
However, there is an inconsistent conclusion in the literature with different estimation procedures and data.
Online since: October 2019
Authors: Ashot Tamrazyan, Makhmud Kharun
It is shown that the relative deformations at the apex of the compression diagram depend mainly on the relative level of lateral reduction and concrete strength.
Introduction If for conventional centrally and eccentrically compressed elements, as well as with indirect reinforcement, there is a large number of experimental and theoretical studies, then for bent elements the amount of research is relatively little, the published data are fragmentary and do not allow to fully describe the mechanism of operation and destruction [1-3].
The experimental data of more than 300 centrally compressed samples, reinforced with indirect reinforcement meshes, were processed.
The dependence (5) for relative deformations is assumed by analogy with the work [10] (with recalculation to the Russian norms), in which a large number of experimental data was analyzed for concrete samples with a strength of 20-110 MPa
According to the results of processing the experimental data for more than 300 samples of centrally compressed reinforced concrete prisms, the best convergence of the stress at the end of the ascending branch, calculated from the proposed expressions (4) compared with SP 63.13330.2012 in most of the considered ranges, was confirmed.
Introduction If for conventional centrally and eccentrically compressed elements, as well as with indirect reinforcement, there is a large number of experimental and theoretical studies, then for bent elements the amount of research is relatively little, the published data are fragmentary and do not allow to fully describe the mechanism of operation and destruction [1-3].
The experimental data of more than 300 centrally compressed samples, reinforced with indirect reinforcement meshes, were processed.
The dependence (5) for relative deformations is assumed by analogy with the work [10] (with recalculation to the Russian norms), in which a large number of experimental data was analyzed for concrete samples with a strength of 20-110 MPa
According to the results of processing the experimental data for more than 300 samples of centrally compressed reinforced concrete prisms, the best convergence of the stress at the end of the ascending branch, calculated from the proposed expressions (4) compared with SP 63.13330.2012 in most of the considered ranges, was confirmed.