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Online since: August 2020
Authors: Piyarat Trikittiwong, Jedsada Maliwong
The synthesized catalyst was utilized for reduction of nitrobenzene.
Introduction Reduction of nitrobenzene is an important in the industrial process.
Table 1 Data from XRD and BET method.
Table 2 Effect of Na-clay, Al-PILC and Pd/Al-PILC on the reactivity for the reduction of nitrobenzene.
Choudary, Reduction of nitroaromatics with a new heterogenised MCM–silylamine palladium (II) catalyst, J.
Online since: July 2014
Authors: Yu E Lin, Xing Zhu Liang
In recent years, a variety of manifold-based learning dimensionality reduction techniques have been proposed, which attempt to project the original data into a lower dimensional feature space by preserving the local neighborhood structure.
But, when the data is distributed in a nonlinear way, LDA may fail to discover essential data structures.
LPP can preserve the intrinsic geometry of data and yield an explicit linear mapping suitable for training and testing samples.
In order construct the objective function using labeled and unlabeled data, we give total-scatter matrix and the local scatter matrix , respectively.
As a result, OSMFA is more effective and efficient in face recognition.Experiments on face data show that the proposed algorithm has more discriminative power in comparison with SDA, MFA and ODLPP.
Online since: May 2012
Authors: Dong Wang, Kai Huang, Shu Xia Yu, Ya Juan Yu, Xiang Wang
Relevant data shows that the water environmental capacity of Lake Dianchi has overloaded seriously.
There are two kinds of strategies for ANPS reduction: (a) management strategies; and (b) engineering strategies.
Collect data from literatures, Land Bureau, EPA and other depts.
Conduct statistical analysis of the data and get land use types and areas and pollution coefficients from some departments; Step 3.
Work out the possible strategies of pollution reduction; Step 5.
Online since: July 2014
Authors: Chi Man Pun, Cong Lin
A novel adaptive image feature reduction approach for object tracking using vectorized texture feature is proposed in this paper.
The dimension reduction has advantages of reducing the computational cost in classification stage. 3) An adaptive learning rate was proposed to handle drifts caused by long term occlusion.
The definition is given as follows: (1) where The is given by least square loss which measures how much the training data is different from an assumed distribution.
(Fig.1 shows how the dimension reduction affects the image quality) is the labeled sign denoting which class the belongs to.
The 15% reduction rate is almost the highest that we could restore the image without noticeable visual quality loss.
Online since: September 2013
Authors: Xiao Chun Wang, Jin Shi, You Jian Jia, Feng Shi
Four distinct classes of pure metal catalysts have been identified for CO2 reduction[10].
The standard potentials for CO2 reduction can be calculated from the thermodynamic data, and is shown as follows[14]: Nevertheless, CO2 reduction does not take place easily, and the actual electrolysis potentials for CO2 reduction are much more negative in most cases than the standard potentials.
They used silver cathode as the catalyst for the reduction of CO2 to CO.
Anodic half-reaction provides the protons for CO2 reduction at the cathode.
Armstrong, Reduction Potential of the CO2·- Radical Anion in Aqueous Solutions, J.
Online since: August 2013
Authors: Yong Jian Guo
The test data of bolt stress shows that the internal stress in slope is tensile stress. 5m depth bolt stress changed very small, and 1m depth bolt data where has the maximum stress changed more clearly.
The test data of Dayu expressway project test verified the bedded rock slope was safe to operate.
The result of the project stress monitoring data shows that the existence of structure planes were the most important factor that affect the stability of rock slope,and this location should be emphasis to monitoring.
Test data of blot stress Acknowledgements This work was financially supported by Major State Basic Research Development Program of China (“973” Program, No. 2011CB013800).
LIAN, Stability analysis of excavation by strength reduction FEM: Chinese Journal of Geotechnical Engineering, vol.23, pp.407-409 , (2001) (In Chinese)
Online since: February 2013
Authors: Andrey N. Dmitriev, Galina Yu. Vitkina, Yu.A. Chesnokov
Kinetics of iron oxides reduction in a blast furnace The mechanism of reduction of iron oxides in a blast furnace is shortly characterized on the basis of data [4, 11].
The essence of the method consists in reduction of test by carbon monoxide under the set temperature conditions and definition of extent of reduction by results of the chemical analysis of the initial and reduction test or loss of mass of oxygen at reduction.
Such design of a reactionary glass allows to avoid a stream limited mode at rather small expenses of gas and to neglect internal diffusion resistance when processing experimental data [10].
Then it is necessary to construct the schedule of dependence of the actual extent of the reduction calculated by results of measurement of loss of mass of reduction test from reduction time.
Reduction Kinetics of IronOre Materials by Gases.
Online since: September 2014
Authors: Gui Rong Li, Hong Ming Wang, Lei Cao, Yang Li, Xiao Jian Fan, Wei Wen Chen
Based on the direct reduction alloying theory, experiments on chromium molybdenum alloy prepared through the direct reduction and alloying reactions between the high-carbon ferrochrome and molybdenum oxide were conducted in a laboratory scale.
The critical factors that would impact the reduction rate of molybdenum oxide and the yield rate of molybdenum were analyzed.
As a result, the method of direct reduction alloying through oxidized ores has gained more and more attentions [2-3].
Table 1 Chemical composition of molybdenum oxide(wt.%) Mo CaO SiO2 Fe S P 52.97 3.51 12.49 2.93 0.14 0.03 Table 2 Chemical composition of high-carbon ferrochrome(wt.%) Grade Cr C SiO2 S P Fe FeCr55C10.0 56.11 8.79 1.83 0.07 0.033 Rest Table 3 Experiment design and data statistics Number FeCr55C10.0/g molybdenum oxide /g Temperature /℃ CaO/g SiO2/g 1 300.35 52.90 1500 11.34 6.50 2 300.11 53.20 1550 11.09 6.11 3 299.76 53.11 1600 11.05 6.23 4 300.58 30.90 1600 11.22 6.48 5 200.12 52.92 1600 11.04 6.26 6 299.70 74.75 1600 11.06 6.33 7 300.45 53.15 1600 - - 8 299.84 53.10 1600 14.15 3.89 9 300.24 52.72 1600 11.17 6.10 10 300.17 53.14 1600 11.28 6.23 The reduction experiments were carried out in a graphite tube resistance furnace, which power is 50kW and the size of the operational zone is Φ160×200mm.
The reduction rate of molybdenum oxide is completely higher than 90%.
Online since: September 2013
Authors: Zhen Kai Wan, Lin Jia, Gui Ling Zhang
Data gateway, completing data collection, storage, forwarding, protocol conversion and other functions, plays an important role in energy management system.
Introduction At present,energy-saving and emission reduction is the theme of times.
Data gateway, completing data collection, storage, forwarding, protocol conversion, and other important functions, plays a major role in energy management system.
Remote management module is responsible for the remote gateway configuration, management strategy configuration, data error handling strategy configuration, and local access data configuration, etc; Control module is responsible for data collection, equipment management, data processing, data storage, management rules and formulation; Protocol conversion module is responsible for data format conversion and communication protocol conversion.
Data acquisition tables, which save the gathered data and energy meter nodes information.
Online since: January 2011
Authors: He Wang, Xue Li, Qi Ming Ju
Utilize rough sets for reduction of fuzzy control rules and fuzzy control system for real time data processing of drilling capacity, drilling moment and spindle motor current under MATLAB platform.
Meanwhile, rough sets rule can effectively analyze and process large amount of empirical data and discover hidden knowledge as well as reveal the potential law.
Its main idea is to remove redundant data from the original datasheet by reduction method while keeping the classification and decision making capability of the original decision table unchanged and obtain a reduction from which decision law can be extracted.
According to the above data, take another 40 drill bits, divided into four groups with 10 drill bits in each group.
Therefore, utilizing rough sets theory to conduct reduction for fuzzy controller from data sample can decrease fuzzy controller laws significantly and simplify fuzzy controller structure.
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