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Online since: February 2007
Authors: Tian Min Wang, Feng Pan, Hai Ying Liu, Wei Chang Hao, Jun Ying Zhang
Ag nano-particles were deposited on the surface of TiO2 self-assembled films by photo-reduction of Ag + solution.
Electrons trapped on the metal would be effectively transferred to perform the reduction reaction with O2 and the holes could participate in the oxidation reaction to their best abilities, and hence the high photo-catalytic efficiency of rutile may be realized.
X-ray diffraction (XRD) data of the films were obtained by Cu Kα line from a Rigaku D/max-2200pc X-ray diffractometer.
Online since: December 2012
Authors: Cui Hong Ma, Wei Qiang Zhang
Based on Atomic Spectrometry for the Determination of Titanium Element in Molten Steel Cuihong Maa, Weiqiang Zhangb 46 West Xinhua Road, Tangshan 063009, P.R.CHINA aemail: mch208@sina.com, bemail: 363527279@qq.com Keywords: atomic emission spectrometry; qualitative analysis; titanium; spectral data Abstract.
Experiments A grating spectrometer Omni-λ300 ( Zolix );0.1nm of Resolution; a data acquisition system for type DCS300P ( Zolix ); photomultiplier tube for the type of PMTH-S1-CR131; a HVC1800 high-voltage regulated power supply; A medium frequency induction furnace and its control cabinet.
Fig.2 The spectrum line collected from Liquid steel The experimental data processing Figure 2 spectrum of the noise reduction processing, Selection of wavelet denoising method for denoising, then qualitative analysis.
Using compact orthogonal wavelet db5 of Daubechies, wavelet on the signal to 5 layers decomposition, get figure 3 Fig.3 Denoised signals of liquid steel After noise filtering, output spectral information data, denoising spectral data and elemental spectrum table in the titanium atom emission line wavelength values ​​were compared, we can find four stronger titanium atomic emission lines, as shown in Table 1.
Online since: May 2014
Authors: Yuri Estrin, Saurabh Nene, Bhagwati Prasad Kashyap, Nityanand Prabhu, T. Al-Samman
This is attributed to the fact that, Li being very small in size, interacts easily with dislocations by the overall reduction in the axial c/a ratio.
They are consistent with literature data [10-13].
Our data for as-rolled condition compare favorably with these results in terms of strength.
As shown in Fig. 3, the data fit a straight line yielding k = 1.7 mm2/min.
While the data for Mg-4Li do not support a parabolic grain growth law, it is obvious from this comparison that the addition of calcium has a very significant inhibiting effect on grain growth.
Online since: October 2014
Authors: Sinead Devery, Clement Higginbotham, Luke Geever, John Killion, Laura Grehan
Promising cytotoxicity data was obtained during direct and indirect contact exposure of composite hydrogels to pre-osteoblast (MC3T3-E1) cells.
The increase in swelling correlates with a reduction in mechanical strength from compression measurements in the corresponding section.
Data is presented as the mean of five independent experiments ± SEM. 3.2 Compression measurement Although hydrogels possess many attractive features for biomedical applications, their major drawback is the limited use under weight-bearing conditions [17].
Data is presented as the mean of five independent experiments (± SEM). (* denotes a significant difference from the control *= p<0.05). 3.3 Biocompatibility testing Among the cytotoxicity tests, extract dilution and direct contact methods are recommended by the ISO guidelines.
Dose dependent reductions in MC3T3-E1 cell viability were also observed following exposure to maleic PVA aqueous solution.
Online since: October 2013
Authors: Lian Shun Zhang, Chao Guo, Bao Quan Wang
The spectrums after preprocessing also contain a large amount of data.
The principal component analysis reduced the data dimension and made it easier to do the further analysis.
Hence, the two principal components did not loss the key information of the spectrums and the spectral analysis was simplified for the reduction of the amount of the data.
After preprocessing of the spectral data, the principal component analysis was applied to reduce the dimensions of the data, and obtained the principal component value, the Eigen value, the variance contribution and the accumulative variance contribution.
The principal component analysis reduced the data dimension and made it easier to do the further analysis.
Online since: January 2016
Authors: A. Rashid A. Aziz, Isa Mohd Tan, Mohammed Yahaya Khan, Z.A. Abdul Karim
Water in diesel emulsion droplet was suspended on a thermocouple above the hot plate and the evolution of micro explosion was recorded with a high speed camera synchronized with temperature data logger.
Introduction Water in diesel emulsion (WiDE), when used as fuel in diesel engine results in NOX reduction supplemented with a large reduction of PM and soot emission [1].
The micro explosion phenomenon was studied by capturing series of images of the event and by data logging the corresponding temperatures.
PC for data acquisition and Image processing.
Online since: October 2011
Authors: Hai Tao Wang, Bin Wang, Heng Li, Zhen Wen Xu
This class contains statistical methods designed for analyzing high-dimensional data using low-dimensional projections [4].
In 1936, Fisher’s linear discriminant analysis on IRIS data is the essence of projection pursuit clustering method.
Switze applied the technology to have a classification of fossil data, and this form the early projection pursuit clustering ideas [5].
Referring to the Statistical Yearbook, we select 19 factors nearly 16 years of statistical data as a sample.
Conclusions The existing problem of serious multi-collinearity in Predictive factors are complicated and interactive, Partial Least-Square Regression have advantage in data structure reduction, in this study, we extract two independent components to solve the collinearity of independent variable factors, and through dimension reduction to Solve the Non-Linear Problem.
Online since: May 2011
Authors: Jing Hui Tao, Shu Ting Liang, Wei Ming Gong, Chun Liang Wu
There is no adequate accumulated on-site test data, especially the on stress test, so the application of RPCF in high-rise buildings is restricted to a certain degree.
Based upon the test and test data, this article analyzes and discusses the load-carrying characteristic and bearing mechanism of RPCF of high-rise buildings.
Fig. 3 indicates the ratio of settlement of soil among piles under equipollent load to undisturbed soil reduction.
In view of good soil condition in this test, the reduction coefficient should be properly lowered in general.
The figure shows that the fit curve is in good agreement with the measured data.
Online since: December 2013
Authors: Ting Pu, Wei Qiang Liu, Zhen Hua Liao, Cong Wei Lv, Hong Sheng Gu
Experimental data was judged via angle, displacement and moment.
Then, we used a sensor data acquisition system based on the USB6211 data acquisition card to realize the rapid collection and display of angle, displacement and moment data.
Data and statistical analysis.
Concerning 2-ACDF, fusion caused reduction of ROM at C23 and increase of ROM at C7-T1 in most mechanical modes.
After 1-TDR, instrumented level (C45) had a biggest reduction of 25.16% in RB.
Online since: June 2013
Authors: Zhong Nian Li, Lei Zhou
If the input variable is the k-dimensional vector, after PFA of dimensionality reduction processing, the output vector is the n-dimensional vector ,here n﹤k.
When this system is operating, it will gather all the output of the sensors and the coiling machine fault signal, then output to the specified breakdown data interim area, then carries on the transformation to these data by the Haar wavelet, then extracts the characteristic data from the transformed data, carries on the PFA to all extraction's characteristic data, reduces the dimension of these characteristic data, after finally sends the dimensionalit reduction data to the compact-type morletwavelet neural network carry on training.
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