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Online since: January 2014
Authors: Yuan Pei Lan, Jun Wei Zhang, Heng Zhao
The detail rolling data is provided as table 1.
Through rolling reduction increases individually, smooth thin plates successfully achieved.
The relationship between thickness and rolling reduction from the first pass rolling to fourth pass rolling 1 2 3 4 Rolling reduction/% Specimen thickness /cm Rolling reduction /% Specimen thickness /cm Rolling reduction /% Specimen thickness /cm Rolling reduction /% Specimen thickness/cm 21 1.58 40 1.28 60.2 1.02 74 0.81 Sample Preparation for Metallography.
Combining former XRD (X-ray Diffraction) data, the surface of LA141 alloy mainly distributed with small globular precipitated MgLiAl2 particles.
According to the XRD (X-ray Diffraction) data, it is deduced that β-Mg and MgLiAl2 achieves excellent ductility from specimen 0°and specimen 45°.
Through rolling reduction increases individually, smooth thin plates successfully achieved.
The relationship between thickness and rolling reduction from the first pass rolling to fourth pass rolling 1 2 3 4 Rolling reduction/% Specimen thickness /cm Rolling reduction /% Specimen thickness /cm Rolling reduction /% Specimen thickness /cm Rolling reduction /% Specimen thickness/cm 21 1.58 40 1.28 60.2 1.02 74 0.81 Sample Preparation for Metallography.
Combining former XRD (X-ray Diffraction) data, the surface of LA141 alloy mainly distributed with small globular precipitated MgLiAl2 particles.
According to the XRD (X-ray Diffraction) data, it is deduced that β-Mg and MgLiAl2 achieves excellent ductility from specimen 0°and specimen 45°.
Online since: May 2017
Authors: Vasiliy Prokopenko, Gennadiy Pivnyak, Oleksandra Vagonova
Analysis of data about the size of modern agricultural enterprise in terms of the land area shows that in the process of land reform the area of agricultural farm land is decreasing, and soil fertility is deteriorating [1].
(4) Statistical data about the winter wheat cultivation on the reclaimed land of the Ordzhonikidze Mining and Processing Plant obtained from the DSAU, UAAS Land Management Institute, and the Nikopol district husbandry, allowed to derive the following equation: Pр = - 45+ 2,1Qр - 0,013 Qр2, c/ha; (5) Ср= 2922 -5,82Qр+ 0,63 Qр2, UAH/ha
(9) i=1 i=1 At the same time the agricultural enterprise will suffer damage because of the reduction of the undisturbed land area.
For the husbandries with diversified production in Dniprovsk region the following regression equation has been statistically determined (data on land areas Sl.a and the number of employees Np in 50 husbandries has been collected): Nр = -2Sl.a3*10-9 +3Sl.a2*10-5 - 0,076Sl.a +210, person
The reclamation level increase leads to the reduction of loss ratio of the land resources reproduction used by the mining and processing plant, in case when the growth in costs of the plant related to reclamation are covered by the cost cutting resulting from the reduction of compensation payments for the loss of agricultural production to the owner of these resources.
(4) Statistical data about the winter wheat cultivation on the reclaimed land of the Ordzhonikidze Mining and Processing Plant obtained from the DSAU, UAAS Land Management Institute, and the Nikopol district husbandry, allowed to derive the following equation: Pр = - 45+ 2,1Qр - 0,013 Qр2, c/ha; (5) Ср= 2922 -5,82Qр+ 0,63 Qр2, UAH/ha
(9) i=1 i=1 At the same time the agricultural enterprise will suffer damage because of the reduction of the undisturbed land area.
For the husbandries with diversified production in Dniprovsk region the following regression equation has been statistically determined (data on land areas Sl.a and the number of employees Np in 50 husbandries has been collected): Nр = -2Sl.a3*10-9 +3Sl.a2*10-5 - 0,076Sl.a +210, person
The reclamation level increase leads to the reduction of loss ratio of the land resources reproduction used by the mining and processing plant, in case when the growth in costs of the plant related to reclamation are covered by the cost cutting resulting from the reduction of compensation payments for the loss of agricultural production to the owner of these resources.
Online since: July 2013
Authors: Yong Gang Huo, Peng Xu, Su Fen Li, Feng Han
The other is that the unclassified data output accurately reflects the confidential data input.
The first one restricts the fully controlling to the monitoring process, the data acquisition and data processing, a variety of information run by system.
The user information data is able to be managed and maintained.
The system integrates data encryption algorithm and data preprocessing algorithm.
Department of Energy and the Defense Threat Reduction Agency.
The first one restricts the fully controlling to the monitoring process, the data acquisition and data processing, a variety of information run by system.
The user information data is able to be managed and maintained.
The system integrates data encryption algorithm and data preprocessing algorithm.
Department of Energy and the Defense Threat Reduction Agency.
Online since: October 2011
Authors: Li Xu, Gui Xue Bian, Jian Jun Hu
This motion leads to premature crack initiation and failure, causing reduction in fatigue life.
Here, m is an exponent fit from crack growth data at R values of −1, 0.1, 0.5, and 0.8 [5] and equals 0.7 for positive R and 0.28 for negative R.
Here B, P, Q, d, Kth, and Kc were constants fit to the crack growth data with values of −18.1, 3.71, 0.235, −0.0066, 4.21 MPa, and 66 MPa, respectively [5].
The crack growth rate da/dN data were in units of m/cycle. all of the analysis in this work was limited to mode I fracture mechanics
This would be a significant reduction in residual stress that the analysis did not support.
Here, m is an exponent fit from crack growth data at R values of −1, 0.1, 0.5, and 0.8 [5] and equals 0.7 for positive R and 0.28 for negative R.
Here B, P, Q, d, Kth, and Kc were constants fit to the crack growth data with values of −18.1, 3.71, 0.235, −0.0066, 4.21 MPa, and 66 MPa, respectively [5].
The crack growth rate da/dN data were in units of m/cycle. all of the analysis in this work was limited to mode I fracture mechanics
This would be a significant reduction in residual stress that the analysis did not support.
Online since: February 2013
Authors: Shu Min, Chun Yan Yang
Figure2, Access Graph and Justified Graph(source: Bafna2003)
As shown in Figure2, A reduction of the plans of the buildings to abstract maps known as “access graphs” depicts the topographical properties.
This reduction reveals a set of patterns that partially manifest the social presuppositions of a culture in a way that plans themselves do not immediately reveal.
These qualitative data can be got in many ways but hard to be analyzed with the quantitative “space configuration” values.
Thus, the qualitative data of spatial activities’ who, when, where, how and quantitative data of spatial configurations values may have comparable counterparts.
This reduction reveals a set of patterns that partially manifest the social presuppositions of a culture in a way that plans themselves do not immediately reveal.
These qualitative data can be got in many ways but hard to be analyzed with the quantitative “space configuration” values.
Thus, the qualitative data of spatial activities’ who, when, where, how and quantitative data of spatial configurations values may have comparable counterparts.
Online since: July 2014
Authors: Xiao Yan Li, Xiao Bao Chen
Wavelet denoising is a noise reduction method by transforming noisy data into the wavelet domain, applying thresholding in the wavelet domain.
It means that one has to decompose noisy data to the decomposition level j and estimate coefficients of noisy data at each level of decomposition (): scale=median()/0.6754 (2) /scale (3) Once the wavelet coefficients are normalized to the noise level j, the threshold level defined by equation (3) is used to select the WT coefficients.
We have presented a new, alternative algorithm for noise reduction in the neural activity signals using transform and level-dependent threshold estimator.
It means that one has to decompose noisy data to the decomposition level j and estimate coefficients of noisy data at each level of decomposition (): scale=median()/0.6754 (2) /scale (3) Once the wavelet coefficients are normalized to the noise level j, the threshold level defined by equation (3) is used to select the WT coefficients.
We have presented a new, alternative algorithm for noise reduction in the neural activity signals using transform and level-dependent threshold estimator.
Online since: July 2014
Authors: Zhi Chuan Liu, Li Wei Tang, Li Jun Cao
It is necessary to do some noise reduction pretreatment work for the signal.
Kalman filter is widely used as a dynamic data processing method[5], which is a recursive filtering method proposed by R.E.Kalman.
Kalman recursive equation can make new state estimation at any given moment, which along with new data can make the optimal estimation of next state.
Then it can achieve the purpose of noise reduction.
Process noise Q is determined by a large number of test data in the filtering process.
Kalman filter is widely used as a dynamic data processing method[5], which is a recursive filtering method proposed by R.E.Kalman.
Kalman recursive equation can make new state estimation at any given moment, which along with new data can make the optimal estimation of next state.
Then it can achieve the purpose of noise reduction.
Process noise Q is determined by a large number of test data in the filtering process.
Online since: August 2011
Authors: Tao Xu, Bin Yang
Although the each hydride has different characteristic, the processes in electrolysis could be divided into two different parts: Electrolytic oxidation (Eq. 1) and Electrolytic reduction (Eq. 2)
It was found after be injected La in catalyst that cathode not only had better oxygen reduction activities, but La also could reduce solubility of catalytic phase [3].And it was shown that multi-layer catalytic membrane electrode manufactured by alternate deposition had better catalytic activity and stability than these in single- layer membrane electrode [4].
Based on logarithmic change bottom formula, then Eq. (4) could be changed to Eq. (5): (5) Made use of Eq. (5), we took the data fitting and charting about the cathode hydrogen evolution polarization value in 10 samples respectively, △{TTP}9651 E was changed from -0.04V to -0.005V, and took the calculation of i0 in 10 samples respectively, and these results were shown in Tab. 2.
The data in Tab. 1 could be disposed and was shown in Fig 2.
So, via comprehensive comparison about these data, it would be found that A-1 sample had maximum i0, lower Ed, and best hydrogen evolution properties.
It was found after be injected La in catalyst that cathode not only had better oxygen reduction activities, but La also could reduce solubility of catalytic phase [3].And it was shown that multi-layer catalytic membrane electrode manufactured by alternate deposition had better catalytic activity and stability than these in single- layer membrane electrode [4].
Based on logarithmic change bottom formula, then Eq. (4) could be changed to Eq. (5): (5) Made use of Eq. (5), we took the data fitting and charting about the cathode hydrogen evolution polarization value in 10 samples respectively, △{TTP}9651 E was changed from -0.04V to -0.005V, and took the calculation of i0 in 10 samples respectively, and these results were shown in Tab. 2.
The data in Tab. 1 could be disposed and was shown in Fig 2.
So, via comprehensive comparison about these data, it would be found that A-1 sample had maximum i0, lower Ed, and best hydrogen evolution properties.
Online since: November 2013
Authors: Lu Quan Ren, Olivier Bareille, Mohamed Ichchou, Marie Annick Galland, Yong Hua Wang, Cheng Chun Zhang
At present, in the field of bionics, investigations on the noise reduction characteristics of owl body surface are mainly focused on its morphological features.
revealed that its special wing feathers had a significant impact on noise reduction capacity.
In the present study, bionic coupling modeling method is used to analyze the surface noise reduction mechanism based on the absorption characteristics of long-eared owl.
The experiment datas of micro-perforated membranes and model 4 are provided by Kang [17] D.H.
The results indicate that the calculation method of micro-perforated membrane and ITM agree reasonably well with the experimental data for the all the structures.
revealed that its special wing feathers had a significant impact on noise reduction capacity.
In the present study, bionic coupling modeling method is used to analyze the surface noise reduction mechanism based on the absorption characteristics of long-eared owl.
The experiment datas of micro-perforated membranes and model 4 are provided by Kang [17] D.H.
The results indicate that the calculation method of micro-perforated membrane and ITM agree reasonably well with the experimental data for the all the structures.
Online since: March 2013
Authors: Sheng Qian Ma, Man Hong Fan
It contains the circuit of gain control, data acquisition, potential instrument and program controlled voltage source.
Micro current detecting is a basic requirement for detecting voltage strictly unidirectional, namely the probe only generates oxidation or reduction.
MAX532 and ARM microprocessor compatible with SPI bus, the 24 bit serial to parallel shift register write 38 bit byte, under the control of software, the predetermined value by controller’s I/O port is sent to the D/A converter which is converted to corresponding analog output voltage. 3 Design of data acquisition circuit Fig.6 Data acquisition circuit In the micro current detecting circuit, AD620 instrumentation amplifier output voltage needs to be converted into digital quantity into the controller to handle.
Table2 is the use of electrolytic cell equivalent circuit was measured in a group of data, R7 =1M, R8 =10K, G = 1.
The system not only improves the acquisition speed and precision of experimental data, while avoiding the many defects of manual operation, and reducing the labor intensity under the condition of the long time experiment, but also reflects more sensitivity the relation of current voltage and wavelength of electrochemical cell from the experimental results, the system also has the advantages of high efficiency of analysis, great treatment to problems, and very good reliability.
Micro current detecting is a basic requirement for detecting voltage strictly unidirectional, namely the probe only generates oxidation or reduction.
MAX532 and ARM microprocessor compatible with SPI bus, the 24 bit serial to parallel shift register write 38 bit byte, under the control of software, the predetermined value by controller’s I/O port is sent to the D/A converter which is converted to corresponding analog output voltage. 3 Design of data acquisition circuit Fig.6 Data acquisition circuit In the micro current detecting circuit, AD620 instrumentation amplifier output voltage needs to be converted into digital quantity into the controller to handle.
Table2 is the use of electrolytic cell equivalent circuit was measured in a group of data, R7 =1M, R8 =10K, G = 1.
The system not only improves the acquisition speed and precision of experimental data, while avoiding the many defects of manual operation, and reducing the labor intensity under the condition of the long time experiment, but also reflects more sensitivity the relation of current voltage and wavelength of electrochemical cell from the experimental results, the system also has the advantages of high efficiency of analysis, great treatment to problems, and very good reliability.