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Online since: May 2014
Authors: Li Jun Zhu, Dao Hong Xia, Ai Fen Li, Xiao Hui Jing, Shou Long Wang
The viscosity reduction rate can truly reflect the actual viscosity reduction ratio.
As can be seen from the data in Fig. 2 (left), when the kerosene diluents was added, effect on the viscosity is very large, increasing as the proportion of kerosene, the viscosity decreased from 11 to about 2 Pa.s.
The viscosity reduction plays a role on the heavy oil.
This method can truly reflect the real viscosity reduction rate.
If the method gets promotion, so other researchers can compare the data, to know optimization molecules structure and to explore the polymer structure-activity relationship.
Online since: August 2013
Authors: You Long Yang, Xing Jia Tang, Xiu Fang Zhang
However, in data analysis and preprocessing tasks, one is often confronted with the problem of selecting features from very high dimensional data.
The experiment was tested on three benchmark data sets.
Experiments and Results In order to evaluate our proposed method, we performed experiments on three benchmark data sets: Emotions data set, Scene data set and Yeast data set.
Mining multi-label data.
In: Data mining and knowledge discovery handbook.
Online since: September 2013
Authors: Ming Rong Zhang, Yong Liu, Ming Hui Liang, Xiao Wei Wen, Zhang Wei Fan
Compared with the carburetor fuel supply system, it has practical significance to energy saving and emissions reduction. 2.
Principle of energy saving and emissions reduction What matters most for Motorcycle engine’s emissions and fuel economy are the uniformity of mixture.
(1) Surface effect As data shows, the sum surface area of 1 gram superfine particles can be as high as 100 square meters.
Analysis of experimental data The research object of this article is DAYANG motorcycle engine DY156FMI, its emission standards is China Standard II; the measuring instrument is NHA - 500 exhaust-gas analyzer; the measuring method is double idle speed method and real-time data measurement method[2] [3].
Sampling a certain range of measuring data , then processing the 4 set of data with method of mean value method ,namely: rotational speed, density of HC, CO, CO2 and NOx are averaged.The compared air figure as shown from fig. 3 to fig.6: Fig.3 Comparison chart of HC concentration Fig.4 Comparison chart of CO concentration Fig.5 Comparison chart of CO2 concentration Fig.6 Comparison chart of NOX concentration From comparing figure , the new system has changed little for NOx emissions ; but the average density of HC and CO emissions are obviously lower than the original carburetor; the CO2 emissions is higher than the original carburetor.
Online since: September 2013
Authors: D. Sattianadan, E. Rekha, M. Sudhakaran
MAXIMUM LOSS REDUCTION AND VOLTAGE PROFILE IMPROVEMENT WITH PLACEMENT OF HYBRID SOLAR-WIND SYSTEM E.
Abstract: Distributed generators(DG) are much beneficial in reducing the losses effectively compared to other methods of loss reduction.
Test results indicate that PSO method can obtain better results on loss reduction and voltage profile improvement than the simple heuristic search method on the IEEE33-bus and IEEE 90-bus radial distribution systems.
Thomos Ackermann et al[1] .The benefits of distributed generation can be classified into Technical benefits(reduction in line loss, improvement in voltage profile, system reliability), Economic benefits(lower operating costs, enhanced productivity), Environmental benefits(reduced emissions of pollutant, encouragement to renewable energy based generation).
PSO algorithm related with DG: Step 1: Input line and bus data, and bus voltage limits.
Online since: October 2014
Authors: Xue Mei Cai, Qian Neng Zhou, Jing Mei Wang, Bao Ying Wang
From 300K up to 1000K, the predicted thermal properties are compared with experimental data.
The results are compared with experimental data and good agreements are achieved.
Considering the errors of the thermal conductivity measurements and the data reads from Ref. [12], the theory applied in this work can be considered believable.
The theoretical reduction of thermal conductivity due to oxygen defects is shown in Fig.4.
But as temperature increases, the reduction of thermal conductivity becomes smaller.
Online since: May 2007
Authors: Lian Zhou, C.F. Liu, Shao Kai Chen, Ping Xiang Zhang
This texture was much intensive in the tape at 99% thickness reduction than in the tape at 87% thickness reduction.
Texture fraction data corresponding to 1, 3, 4, 5 hours annealing are shown in Fig.3a.
The absence of data at 2 hours is owing to the failure EBSD experiment of this sample.
The absence of data for 1 hour is also because of the unsuccessful EBSD experiment of this sample.
Fig.5 {111} pole figures of as-rolled tapes in 87% total reduction (a) and 99% total reduction (b).
Online since: November 2012
Authors: Adekunle Oloyede, Naren Kumar, Vladis Kosse
Cycloidal drives are widely used in today’s industries for drives where large reduction ratios are required.
One of the axes of the accelerometer orientated in the tangential direction was plugged into a data collection and analysis device – Labquest (Vernier Software & Technology, USA) to capture tangential acceleration of the pulley.
Thus, when the weight was dropped, the system response would trigger data collection automatically.
Table 1: Comparison of calculated natural frequency from measured data with that of FFT Input torque [Nm] Calculated Frequency [Hz] FFT frequency [Hz] 0.5Tn 28.82 27.34 1Tn 24.39 25.39 1.5Tn 20.41 25.39 Discussion and Conclusion At high input torque loads, the components of the drive are subjected to high contact forces and hence the overall torsional stiffness increases.
Logger Pro data-collection software (http://www.vernier.com).
Online since: May 2014
Authors: Hao Yan Guo, Yuan Zhi Cheng, Da Zheng Wang, Jia Cheng Xu
When the data are linearly inseparable, a non-linear kernel that maps the data into the feature space non-linearly can handle the data better than the linear kernels.
The computer assisted screening dataset for lung cancer is a large data set.
The data set has 53,200 training data points and 81,260 testing data points, each record has 24 attributes.
Fig. 3(b) shows “training time” vs “training data size”.
On the basis of this framework,it is more suitable for classification of large data sets.
Online since: October 2023
Authors: Ping Wang, Shu Guang Dong, Zhong Chao Zhao, Yu Fu
Nevertheless, they suffered from sluggish kinetics of the oxygen reduction reaction (ORR).
In addition, a weak peak from the (1(_)11) plane of copper oxides was observed at about 35.5o in the XRD data, suggesting that part of the copper has not been completely reduced and a very small amount of copper oxides exists.
The earlier the oxygen reduction peak appears, the higher the electrocatalytic activity of the material.
Methanol is oxidized at the anode concomitant with oxygen reduction at the cathode.
Sun, FePt nanoparticles assembled on graphene as enhanced catalyst for oxygen reduction reaction, J.
Online since: November 2024
Authors: Hong Hu Zeng, Jin Han Tan, Jin Chung Sin, Sze Mun Lam
The photocatalytic Cr(VI) reduction were performed under visible light irradiation.
Clearly, Cr(VI) reduction efficacy was 5.1% under visible light irradiation in the absence of photocatalyst, revealing the negligible role of self-photolysis on Cr(VI) reduction.
Furthermore, to make a measurable comparison of photocatalytic performance, the experimental data were fitted into first-order kinetic ln(Ct/Co) = kt and shown in Fig. 2b.
(a) Photocatalytic Cr(VI) reduction and (b) the corresponding kinetic analysis.
(c) Recyclability performance for Cr(VI) reduction.
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