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Online since: February 2014
Authors: Qi Zhou, Yue Wen, Ning Ding, Li Han
The kinetics showed the AO7 reduction rate can be greatly improved by the addition of sulfate and RF, thus it is possible to speed up the start-up of AO7 reduction system under appropriate condition.
For this reason, oxidation following reduction of the –N=N– is favored for the degradation of azo dye, with reduction being the rate-limiting step of the overall process.
The balance between AO7 and SA (data not shown) indicating that the reduction plays a major role in the AO7 decolourising process.
Data shown in Fig. 2 indicated that the absence and presence of RF made no big difference, while the existence of sulfate can greatly influence the variation of the electron donor.
The kinetics of AO7 reduction.
Online since: September 2013
Authors: Wen Yi Yao, Zhan Bin Li, Da Chuan Ran, Quan Hua Luo
To make up for a lack of past studies, based on the autoptical data in Dali river, a tributary river that has the most dams and reservoirs in He-Long region, analysis and studies were carried out on sediment reduction effects by soil retaining dams with different allocation proportion in this paper.
Sediment reduction by different types of dams is given in Table 1 [9].
In August 1994, the sediment transport was 100 million ton annually because of heavy rainstorm, on August 10, 1994, the daily sediment transport was 33.8 million ton, the annual sediment transport modulus is 25700t/km2; the annual flood sediment transport would be 118.7 million ton by restoring sediment reduction with slope surface measures, accounting for 48.1% and 57.1% of the annual sediment transport of 208 million ton by Wuding river that year, being the maximum value in the observed data series.
The maximum sediment reduction capability (sediment reduction capability) of different types of soil retaining dams correlates closely with flood season rainfall.
Within the sediment reduction capability of soil retaining dam, the sediment reduction increase with more rainfall and more incoming sediment in the flood season, having the feature of “the more incoming sediment is, the more sediment reduction will be”.
Online since: August 2013
Authors: Li Feng Cao, Xiao Peng Xie, Jian Hao Zeng, Heng Huang
It provides basis and reference for the optimization of drag reduction for the vans.
The pressure and velocity analysis Body surface pressure is an important data to characterize the performance of the car.
Taking the van without a dome as a comparative object, by analyzing the data of the measured wind resistance, the changes of wind resistance before and after the installation of different types of domes may come to a conclusion.
To minimize the test error of wind resistance on van model, for the same model, continuous test three times to take the average, and take it as the data of wind resistance this type of van model suffers.
When the wind speed is 40m/s, the maximum drag reduction rate reaches to 16.9737%.
Online since: January 2020
Authors: A.G. Orlov, Grigory A. Orlov
Some data about TPA-80, including 8-cage continuous and 24-cage reduction mills, have been published earlier [13].
Statistical Data Processing To improve the technological rolling modes to reduce the thick ends length, further analysis and processing of factual data on the pipes wall thickness ends was performed.
Thick ends sizes after reduction mill were defined based on factual data.
The shape and size of thinned ends were determined from factual data.
Bibliographic data: 2003-03-04
Online since: December 2013
Authors: Ning Ling Wang, De Gang Chen, Yong Ping Yang
These methods deal with the whole data set rather than selected some samples randomly and aim to dig correlation among data rather than causality, thus they can be believed taking philosophy of big data analytics.
Big data analytics not only emphasis the huge volume of data but also imply that the collected data set covers almost the whole population.
On the other hand, big data analytics abandon the exact formulation of causality and forecasting with the correlation among data.
Big data analytics employ different philosophy with methods of the existing data mining to deal with data and has been applied to many areas successfully.
The huge volume and complexity of collected data from thermal power units strongly motivate us to mine them by employing idea of big data analytics.
Online since: August 2014
Authors: Ju Qing Lou, Pei De Sun, Ping Zheng, Dong Ye Yang, Mao Xin Guo
The model fitted quite well with the collected data, suggesting that the model was applicable.
So it is greatly necessary to develop new technologies for the reduction and disposal of waste sludge.
Data processing and model evaluation Nonlinear fitting analysis and significance test were done using SPSS17.0, Origin 7.0 and 1st Opt software.
Fig.3 The uptake and release curve for TOC: a, the uptake curve; b, the release curve Fig.4 The uptake and release curve for TN: a, the uptake curve; b, the release curve Fig.5 The uptake and release curve for TP: a, the uptake curve; b, the release curve Non-linear fitting method and related equations (3) and (4) were applied to the experimental data.
Based on data given above, the specific release rate of pollutants by Tubificidae in dry weight could be calculated.
Online since: May 2011
Authors: Tu Gen Feng, Kun Yong Zhang
Stability criterion The shear strength indexes are c and φ, Fk is the strength reduction factor.
Based on such a criterion for evaluating the instability, it is convenient to compare the calculated displacement with infield-measured data, which is helpful to monitor the development of safety of the slope and make engineering judgment based on in field measured displacement data.
At each load step, the calculated data could be output as required, such as the deformed mesh, displacement and stress of elements and nodes, stress and deformation contour map.
“Slope Stability Analysis by Strength Reduction”.
“Slope Stability Analysis by Strength Reduction”.
Online since: March 2015
Authors: Shuang Wang
Analysis on Efficiency Evaluation of Regional Energy-saving and Emission-reduction Based on DEA Model Shuang Wang Economics and Management College, Dalian University, Dalian, 116600, China wshuang1021@sina.com Keywords: Energy-saving and emission-reduction; DEA; Evaluation index system Abstract.
Introduction The concept of "energy-saving and emission reduction" was first proposed in "Eleven-Five" program and made energy-saving and emission reduction work closely together.
CICA in Canada has listed energy-saving and emission-reduction and audit evaluation in different industry, in which multiple aspects of energy-saving and emission-reduction and audit evaluation indicators was included in utilities, manufacturing, and traffic industry etc.
The Brief Review of Evaluation Method  Data envelopment analysis, DEA has developed into a kind of non-parametric frontier efficiency analysis method on the basis of the relative efficiency evaluation by A.Charnes and W.W.Copper scholars etc. this method is often used in input and output system of the production and living for management, decision-making and efficiency and benefit evaluation, etc, at present which has become a widely used and effective analysis tool in the field of management science and system engineering.
It mainly uses the linear programming method, on the basis on the original sample data are divided into input index and output index, gets to evaluate effectively to decision making units(DMU), for the purpose is to reflect whether the DMU can  achieve the decision-making results of “spending as little as possible, to get maximum benefit”.
Online since: January 2012
Authors: Xue Long Hu, Lin Chen
In OFDM data is transmitted simultaneously through multiple frequency bands, the effects of multipath delay spread can be minimized.
OFDM has been proposed for many radio systems such as the next generation mobile communication, wireless LAN, digital audio/video broadcasting, and high-speed cellular data.
The Papr in Ofdm Systems In OFDM systems, the baseband time domain signal consisting of N subcarriers may be written as , (1) Where is the subcarrier spacing, NT denotes the useful data block period.
Partial Transmit Sequences (PTS).In the PTS approach, the input data block is partitioned into V non-overlapping subblocks, which are combined to minimize the PAPR [4].
However, for both schemes, to recover the data, the receiver must to know which vector had actually been used.
Online since: January 2013
Authors: Yu Feng Wang, Li Guo Sun, Dong Mei Zhao, Xiao Jian Cao, Mei Qing Zheng, Dong Yu Zhao
Reduction of GO by TGA.
In order to ensure the reduction of GO by TGA, hydrochloride reduction of GO was carried out to compare the quality of TGA to that of the hydrochloride reduced GO.
This is attributable to the partial reduction of GO to graphene.
These XPS data suggest that the oxygen-containing functional groups have been partially removed restoring majority of the conjugated graphene network after reduction.
Cheng, The reduction of graphene oxide, Carbon 50(2012)3210-3228
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