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Online since: September 2003
Authors: Anita Lloyd Spetz, Susan Savage, J. Cerdà, Mike Andersson, H. Svenningstorp, R. Soltis, D. Moldin, M. Löfdahl, M. Einehag, M. Persson, H. Wingbrant, P. Salomonsson, P. Ljung, M. Mattsson, J.H. Visser, S.G. Ejakov, D. Kubinski, Lars Unéus
In this way NH3 sensors with low cross sensitivity to NOx have been demonstrated as potential sensors for control of selective catalytic reduction (SCR) of NOx by urea injection into diesel exhausts.
During Selective Catalytic Reduction of diesel exhausts, NOx is reduced by NH3 in the catalytic converter.
To the right in the figure the data from the sensors has been evaluated using PCA (principal component analysis).
This is a chemometric method that may be used for extracting information from a multivariate data set.
All data points are projected onto a plane spanned by the two orthogonal vectors, called principle components or PCs, pointing in the two directions of highest variance among the data [8].
Online since: September 2013
Authors: Feng Qi, Yong Zuo, Yang Li
The alcohol content will significant reductions 7.5v/v, 3.2v/v as the addition of SO2 increasing that it is restrain the growth of yeast.
The alcohol content will significant reductions 7.9 v/v, 3.0 v/v.
The results of response surface experiment According to the results of single factor experiment, analysis experiment in four factors three levels of response surface by means of BBD (Box-Behnken Design) and Design-Expert software[8-10], and regression fit the data for three times.
Experimental Design and Data Processing(Second Edition).
[10] GEP Box.W G.Hunter.Statistics for experiments: an introduction to design,data analysis and model building.New Nork:Wiley,1990
Online since: December 2012
Authors: Jing Wang, Ling Yun Lang, Rong Fang Song
Here it takes 0.8 as strength reduction factors for both short piles and soil between them.
The testing data show that, the characteristic value of the vertical compressive bearing capacity of a single CFG pile is 583kN, which meets the design requirement; the characteristic value of the bearing capacity of composite foundation of a single CFG pile is 544kPa, which also meets the design condition; the site liquefaction within the depth of 20m is basically eliminated.
Fig. 3 Q-s curve of a single CFG pile Fig. 4 p-s curve of CFG single pile composite foundation Comparison of Actually Measured Settlement Data with the Theoretically Calculated Results Throughout external wall of the whole building, 16 observation points are distributed evenly.
The settlement data of them are basically uniform.
The actually measured data are shown in Table 4, smin is the minimum accumulated settlement, smin is maximum value and sAVG is average settlement.
Online since: June 2014
Authors: Jia Chun Lu, Ping Huang, Zhi Chao Liu
Fig. 1 XRD patterns of pyrocarbons Fig. 2 XRD patterns of pyrocarbon fluorides The characteristic data of the pyrocarbons and their fluorinated derivative are given in Table 1.
But the discharge potential of other samples from carbon with Tg>1600℃ have a slight decline during the process of electrochemical reduction and the average voltage is evidently lower.
The data of electrochemical tests (at 0.01C discharge rate) were listed in Table 2.
On the other hand, according to the data of IR spectra, more >CF2 groups were formed with Tg decreasing.
The >CF2 group is inactive for electrochemical reduction [9], suggesting that the loss of specific capacity of sample could be attributed to over-fluorinated groups formed at surface of samples.
Online since: May 2014
Authors: Elisabeth Massoni, François Bay, Anne Claire Jeanson, Gilles Avrillaud, Gilles Mazars, Nicolas Jacques, Michel Arrigoni, Jean Paul Cuq-Lelandais
The material data are then used to design a real electro-hydroforming operation.
The predictive quality of the simulations depends on the model representativeness and on the input data accuracy.
Even if more data are necessary to plot the whole forming limit curve, it is clear that the forming limits are increased with high strain-rate conditions.
These results contribute to validate the multiphysical simulations, as well as the material characterization in terms of constitutive behavior and formability. 38% thickness reduction Figure 6: 3D simulation of electro-hydroforming – contours of thickness reduction Figure 7: Experimental failure with the initially flat bottom – Al5657 Figure 8: Experimental forming with the initially flat bottom – Al1050 Conclusion A characterization method based on an electromagnetic tube expansion test has been developed and applied to aluminum 1050 and 5657.
A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures, Proceedings of the 7th international symposium on ballistics, Hague, Netherlands, pp.541-547, 1983
Online since: September 2015
Authors: Bernard Nacke, Yuliya Pleshivtseva, Anton Popov
Second, it allows dramatical reduction for the number of calls of field analysis modules and objective function evaluations.
Common material data (relative permeability and electric resistivity) for standard aluminum have been used.
Rapoport, Joint optimization of interrelated thermophysical processes in metal working systems based on system quality criteria, Optoelectronics, Instrumentation and Data Processing. 49(6) (2013) 527-535
Rapoport, Algorithmically precise method of parametric optimization in boundary-value optimal control problems for distributed parameter systems, Optoelectronics, Instrumentation and Data Processing. 45, 5 (2009) 464-471
Pleshivtseva, Optimal control of nonlinear objects of thermophysics engineering, Optoelectronics, Instrumentation and Data Processing. 48, 5 (2012) 429-437
Online since: April 2014
Authors: Chin Tsan Wang
The electrons moving to the cathode from the electrode through the external circuit and the hydrogen ions entering the cathode through the PEM will have a reduction reaction with oxygen at the cathode and finally produce water.
To increase the reducing ability of the cathode plate, the electrical performance of the integrated system can be improved in the following ways: (1) enlarging the reaction area of the plate [9] (2) increasing the dissolved oxygen concentration of cathode by using Pt catalyst (3) using a potassium ferricyanide (K3[Fe(CN)6]) solution to reduce the reduction potential [2, 8].
Fig. 3 The double fined-type cathode plate in this experiment Experimental method and data collection In the SMFCs, two experimental parts were processed.
The Data Acquisition System 5020, Jiehan, Taiwan was used for the data collection.
It was linked to the external resistance of the microbial fuel cell (about 3000Ω) and connected to the computer through a RS232 terminal to record data once per minute.
Online since: August 2013
Authors: Shu Xuan Liang, Yun Xiao Wang, Zhe Qin
The data indicated that the concentration of Mn in Lake Baiyangdian was over these standards. 2.2 Spatial and temporal distribution of Mn in sediments The concentration of Mn in sediments at the five sites ranged from 144.95 to 1317.04 mg∙kg-1 (Fig. 3).
Therefore, the data indicated that the average concentration of Mn in sediments was within this range.
In water body, Mn transforms between the overlying water and sediments through reduction, oxidation, diffusion and deposition.
The monitoring data showed that the pH of the water body in March was higher than that in other times of the year.
The reduction and oxidation of organic carbon can influence the concentration of Mn.
Online since: September 2013
Authors: Abdul Waris, Fiber Monado, Zaki Su’ud, Menik Ariani, Khairul Basar, Hiroshi Sekimoto
At the beginning of the calculation, the data for the power density level is the result of assumptions and then done calculations using this data.
The result are eight energy group macroscopic cross section data to be used in two dimensional R-Z geometry multi groups diffusion calculation in CITATION-SRAC module.
The conversion rasio value decreases slowly after the midle of life until the end of life also due to reduction of fertile material inventory.
This correlated with a reduction of U-238 that produced Pu-239 during burn-up.
Tsuchihashi: SRAC2006: A Comprehensive Neutronic Calculation Code System, JAEA-Data/Code 2007-004, Reactor Physics Group, Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency (2007).
Online since: July 2014
Authors: Hong Liang Guo, He Long Yu
We need to have a large number correlation characteristics as the input raw data, on the basis of this, a large number of trainings are taken, and the data features are extracted, finally, the data characteristics correlation processing is completed.
The cloud storage security model of information data is divided into four parts, including the CSP user authorization center, cloud storage server, GPS information data owners and data user.
(1) The authorization center of user information data.
(2) The data information owner.
(3) The data users.
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