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Online since: February 2014
Authors: Wan Haliza Abd Majid, Rehana Razali, Edy. Giri Rachman Putra, Abdul Aziz Mohamed, W.A.T. Wan Abdullah, Z.A. Ibrahim
The collected data were implemented with data reduction using Graphical Reduction and Analysis SANS Program (GRASP) and analyzed with analysis software (IGOR Analysis Pro 5.04.8).The produced ZnO nanostructure was characterized by powder X-ray diffraction (XRD, Philips, X'pert, Cu Kα).
Log-log plots of SANS data on ZnO powder prepared by solvothermal method at temperature of 150˚C for 18 hours.
Online since: August 2017
Authors: Antonio Ballester, Jesús Angel Muñoz, Felisa González, Laura Castro, M. Luisa Blázquez
The crystalline phases were identified using standard cards from the International Centre for Diffraction Data (ICDD, Newtown Square, Pennsylvania) Powder Diffraction File database.
The adsorption isotherm data are characteristic of each system and its analysis is crucial for understanding the adsorption mechanisms.
Lovley, Dissimilatory Fe(III) and Mn(IV) reduction, Microbiological Reviews 55 (1991) 259-287
Ballester, Bio-reduction of Fe(III) ores using three pure strains of Aeromonas hydrophila, Serratia fonticola and Clostridium celerecrescens and a natural consortium, Bioresour.
Data 45 (2000) 575-584
Online since: September 2017
Authors: A.K. Yakimov, Ye.N. Butusova, A.V. Tumanin
Material Specimens The average adhesion value of [N/5sm] The decrease of adhesion [%] Vinyplan 6580 Arctic «dry» 230 3 «soaked» 225 ORCA TECH 289 4588 «dry» 280 18 «soaked» 230 Prolonged soaking of the materials has different influence on the reduction of film adhesion.
However, such statistical data is needed to develop requirements for existing materials and materials under development as well as for estimation of their strength properties.
Table 2 shows data of strength tests of these specimens.
Data of strength tests.
The reduction in strength is about 30% compared to the new materials.
Online since: April 2014
Authors: Jia Wei Xiang, Hai Feng Gao, Yong Ying Jiang, Xiang Huan Cui
The present noise reduction methods, such as wavelet decomposition, empirical mode decomposition, acoustic emission technique, etc., achieved some effect but simultaneously lead to the reduction of fault signal.
Let noise intensity D=2.31, the data length L=4096 and sampling frequency is 10Hz.
During the experiment, the data acquired by an accelerometer mounted on the top of the bearing holder on left side.
As the sampling frequency is 25.6kHz, the experimental data should been preprocessed by scale transformation [11].
Online since: April 2014
Authors: Yang Xiao, Chong Du Cho
It was reported in 2010 that PEM fuel cell can reach ~60% electricity conversion efficiency and 80% energy co-generation (electrical and thermal ) efficiency with more than 90% reduction of carbon and pollution emissions [1].
Within an operating circle of the PEM fuel cell, the diffusion of reactants, the oxidation and reduction of reactants and the conduction of protons, they all take place in the membrane electrode assembly (MEA).
The same step is conducted to obtain the properties of electrode by using the re-modified parameter of nafion membrane as the input data.
The accuracy of the material definition must be verified by experimental data [6].
The stress-strain curve acquired from the model fit the experimental data well as shown in Fig 3.
Online since: May 2012
Authors: Ying Tan Yu, Fa Yun Li, Da Yuan Tang, Yong Xin Feng, Jian Wang, Cheng Hu, Yuan Zhang, Wei Hou
Data Sources and Research Methods.
The control unit zoning data mainly includes natural geographic data, water ecological environment data and social economic indicators.
Most of material data derived from the environmental monitoring data, the official statistical data and the 1: 50000 topographic data of China including county-level administrative boundaries, rivers, watershed boundaries, roads, railways and other factors.
ArcGIS software was used as the tools of data processing.
The main functions of this information system include attribute data management, graphic data maintenance, information query, spatial data analysis and graphical output.
Online since: January 2012
Authors: Meng Li
Decreasing dimension eigenvectors extracting is achieved from these 36 groups AR model data by PCA.
Table 1 shows the 6 groups 6 dimension samples data after PCA dimensions reduction.
These data are 12 groups in each state of rolling bearing: non-fault, outer race fault and outer race fault, we chose 2 to 8 sample data in it as training samples, all of these 36 groups data are chosen as testing samples.
The original 20 dimension data and the 6 dimension data which dimension are reduced by PCA are both sent to SVM classifier, and the classification accuracy is compared.
Compare the classification accuracy results of original 20 dimension data and the reduced 6 dimension data, there is no clear difference between these two kinds data.
Online since: May 2012
Authors: Tian Sheng Li, Su Li, Jing Jing Zhou
If the proportion is not appropriate, it will affect seriously the performance and emissions of engines, then does not meet the goal of energy saving and emission reduction.
High latent heat of vaporization and low Cetane Number of ethanol make temperature of cylinder decrease, fuel ignitability get worse, lead to emission SOF of the HC and PM increased, but NOx emission reductions.
To ensure the reliability of data, the 13-mode test cycle mixed fuels did two times, and take the average data.
As the ethanol properties increased in the ethanol-diesel fuels, the fuel consumption rates increasing; The rated power and maximum torque of the engine gradually decreased, but reduction of the maximum torque is smaller; the brake specific emissions of CO decrease, while HC, NOx and PM increase with the ethanol content in the blend fuel but the increments of the NOx and PM emissions are not so obvious as NOx emission
Online since: September 2011
Authors: Da Yong Li, Ying Hong Peng, Ding Tang, Qing Qing Zhang
With the reduction of the channel diameter, welding conditions, such as height of the welding chamber, are worse than that of tubes with large channels (diameters of 3~5 mm).
For welded specimen, reduction of the elongation is much larger than the other two factors, which means the welded position are not suitable for the secondary forming process.
The yielding strength ratio of the webs between the channels is 0.76 according to data fitting of the test data.
(2) For welded specimen, reduction of the elongation is much larger than the other two factors.
Online since: July 2011
Authors: Kang Tao, Li Xin Xue, Xin Yu Fan, Hong Fang Zhu, Liang Xu, Juan Li
Research results pointed out that MMT performed well in cone calorimeter tests, especially in peak heat release reduction.
The results of all samples are shown in Figure 1, and the data summarized from the curves is listed in Table 2.
Table 2 HRR and THR data of PP composites Samples Time to ignition (s) PHRR(KW/m2) THR(MJ/m2) PP-1 70 415.64 99.6 PP-2 21 160.65(-61.35%) 94.2(-5.42%) PP-3 42 149.75(-63.97%) 69.5(-30.22%) PP-6 37 157.94(-62.00%) 55.1(-44.7%) Fig.1 is the HRR curves (a) and THR curves (b) of PP composite samples.
In addition, 3 wt% Na-MMT and 3 wt% MA-MMT caused 2.62% and 0.65% reduction of PHRR compared to PP-2, respectively.
In fact, the organic content doesn’t only affect the PHRR reduction but change the shape of HRR curves.
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