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Online since: January 2015
Authors: Bolesław Machulec, Wojciech Bialik
Post-reaction gases, generated during the silica reduction process with carbon, contain significant amounts of energy.
For preparing the balance sheets has been used operational data from the 20 MVA furnace and the overall reaction of the silica reduction process.
Volatiles of reducers released during the charge heating contain significant amounts of hydrocarbons do not take part direct participation in the reduction process.
For the energy balance purpose, it is assumed that the reduction process (1) occurs at 1600°C and the produced alloy is cooled down to the ambient temperature.
The energy flux of the condensed substances has been determined based on the thermodynamic data as a sum of the chemical and physical energies [5], while the energy flux of post-reaction gas has been assumed as unknown quantity in the balance equation (2).
Online since: March 2010
Authors: Lan Hua Zhou, Fu Hong Zeng
The interaction of temperature and the amount of Na2CO3 have negative influences on the degree of reduction and metallization.
Introduction In the direct reduction of iron oxide mixed pellet, it was found [1-4] that the minor amount of alkali metal, e.g.
It is generally agreed [8-12] that the reduction of iron oxides by carbon occurs through the gaseous intermediates CO and CO2.
In the experiment, it is found that Na2CO3 as addictive into VTMCN pellet will improve the reduction degree and metallization.
[6] Li Yun Yan and Hu Chuan Rong: Test design and data processing (Beijing Chemic Industry Press Publications, China 2005
Online since: August 2014
Authors: Jose G. Sahaya Stalin, Christopher C. Seldev
When Error Detection Schemes were used, there is a reduction in the number of cloud distributed storage systems.
Data owners can use the cloud data center as if it is available local, without having to worry about its integrity.
If any failures occur in the data center, we can recover the data from the compensation of neighboring data centers.
As a result, cloud data center requires encrypted data for the protection from unauthorized users.
While decrypting the data, users can utilize the key after getting the permission from the owner of the data. 3.
Online since: August 2013
Authors: Yan Liu, Lin Shi, Si Yang Liang, Zhuang Zhi Han, Feng Ju
Measured data verifies the feasibility of this method, which provides useful references for engineering application and lays foundation for further noise reduction and muzzle velocity extrapolation.
So that, through the high-speed triggering technology accomplished by high speed triggering radar, the measurement system record the time when the projectile just leave the muzzle and consider it as zero time of data extrapolation.
Finally, the muzzle velocity of projectile is obtained by data extrapolation.
Measured data analysis According to the above method, this article analyzes an echo signal of high firing rate artillery projectile.
Through the theory analysis and measured data validation, it proves the feasibility of the proposed method and provides useful reference for engineering practice.
Online since: October 2014
Authors: Ying Mei Zhou, Ke Ying Cai
Azoxy compounds are prepared mostly by reduction of aromatic nitro compounds or oxidation aromatic anilines.
Azoxy compounds can be prepared by electrolytic reduction of nitro compounds[10].
Among the reduction methods, sodium borohydride reduction can be operated at room temperature easily, and the yield of azoxy compounds is high.
Reduction nitro compounds using sodium borohydride.
Table 3 Yields and corresponding MS data of azoxy compounds Entry Product Yield [%] MS(EI), m/z [%] 1 2a 85 198(M+, 22), 182(12), 169(21), 105(18), 91(25), 77(100) 2 2b 41 226(M+, 21), 211(60), 104(19), 91(100), 65(37) 3 2c 53 226(M+, 57), 119(18), 105(31), 91(100), 79(25), 65(42) 4 2d 48 254(M+, 34), 238(20), 197(15), 105(100), 91(32), 77(60) 5 2e 27 258(M+, 93), 242(33), 121(83), 107(100), 92(45), 77(55) 6 2f 87 266(M+, 7), 250(25), 139(33), 125(21), 111(100), 90(38) 7 2g 90 266(M+, 5), 250(11), 139(26), 125(6), 111(100), 75(33) Reusability of the catalyst.
Online since: October 2013
Authors: Dong Joo Kim, Ho Sang Ahn, Hye Jin Park, Ju Hyun Oh, Jin Chul Joo
Another method for reduction is a thermal treatment.
Nonetheless, thermal treatment has advantages in controlling of degree of reduction in terms of the amount of functional groups [7].
Reduction conditions were repeated as reported in other journals [6,8].
Gas sensing measurement: Gas sensing properties of each GO and rGO film were measured by the system consisting of Keithley 2400 sourcemeter, mass flow controller (MFC), MFC controller, nitrogen, oxygen, methanol gas cylinders and LabView based data acquisition computer (DAC).
It indicates the slight reduction of GO and have an agreement with XRD results in other studies [12].
Online since: May 2012
Authors: Yong Chun Cheng, Ping Jiang
Strength reduction method.
Strength reduction method Zienkiewicz in 1975 put forward the strength reduction method [7], the safety factor of slope stability was defined as the slope just reached the critical failure, the reduction degree of slope soil shear strength parameters.
(1) Strength reduction method assumes that the reduction coefficient of the whole slope soil has the same value, and the reduction coefficient is the slope stability safety coefficient when the slope reached critical.
Because the slope morphology cannot be described as specific data, its sensitivity cannot be calculated through the derivation.
Non-linear shear strength reduction technique in slope stability calculation.
Online since: July 2011
Authors: Wen Xue Tan, Xiao Rong Xu, Mei Sen Pan
In this algorithm, original high-dimension data is reduced by Sectional Least Squares method, and after reduction dimension, it is transferred into precision data as network input.
Case Experiment and Intermediate Data.
All of the above data are listed in Table 1 in detail.
Then a second Elman neural network is constructed , data of which from result of PCA analysis against samples and the input data of which from PCA reduction high-dimension, and forecast data listed in Table 2.At last, these instance samples are operated on SLS characteristic compression and reduction high-dimension, and they are transferred to new samples, from which the third Elman neural network is designed and predicts testing instances, result statistics presented in Table 2.
It is found that where there is an intensive relativity of inner elements in the set of characteristic variables, and reduction high-dimension of characteristic variables is effective on both decreasing data redundancy and eliminating temperance of repetitive-correlative data.
Online since: June 2016
Authors: Tobias Ortmaier, Julian Öltjen, Daniel Beckmann, Christian Hansen, Ilja Maurer, Jens Kotlarski
To simplify this process and significantly reduce the required expense, an integrated parameter and data management concept is proposed.
Furthermore, the data exchange between products, machines, and a higher level controller can reduce the relative costs of information.
Manually added data, which is already available during the commissioning process (e. g. design parameters and data sheet information) and further user input data that is commanded prior to or during operation.
(e. g. from data sheets) and generate parameter information of type 3.
Large amounts of process data from the field layer (e. g. from existing sensors in the servo drives) become available for superordinate analysis using Big Data, Data Mining and pattern recognition methods.
Online since: November 2010
Authors: Lian Qing Chen, Li Guo Gao, Kun Wang
Colligating the dimensionality reduction gray moment operator and the least square circle, the sub-pixel location of the inner circle centre was realized and the sub-pixel location precision was improved by applying the 3s iteration algorithm.
By the experimental data we can see the running time by the method of determining-circle-with-three-points is reduced two orders of magnitude compared with Hough transform.
Define an operator, when the operator is applied to the actual data, it will produce an ideal edge, the third-order gray moment of the two sequences of edge pixels is equal.
It shows that the dispersion of measurement data is smallest and higher precision.
The experimental data showed that the running time is greatly reduced, and it could provide the primary data for the sub-pixel location.
Showing 1231 to 1240 of 40694 items