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Online since: July 2012
Authors: Ting Bo Zhou, Zhi Yu Han, Zheng Chen, Biao Du, Yun Liu
The ECU of engine was based on calibration data and the test bed without post-treatment devices.
With fuel properties, injection timing and pre-injection quantity respectively changed, in-cylinder pressure and emissions data were measured.
At the same injection timing, it can be found that the benefit of using butanol addition for the reduction of soot emissions is obvious.
The more the proportion of butanol in the blends is, the greater the overall reduction of soot emissions can be obtained.
With oxygenated addition, the oxygen atoms could enter rich fuel region and consume soot precursors through the formation of hydroxyl radicals, combined with the latent heat of vaporization of butanol is higher than diesel and the ignition delay of the combustion prolonged, result in reduction of soot emission.
With fuel properties, injection timing and pre-injection quantity respectively changed, in-cylinder pressure and emissions data were measured.
At the same injection timing, it can be found that the benefit of using butanol addition for the reduction of soot emissions is obvious.
The more the proportion of butanol in the blends is, the greater the overall reduction of soot emissions can be obtained.
With oxygenated addition, the oxygen atoms could enter rich fuel region and consume soot precursors through the formation of hydroxyl radicals, combined with the latent heat of vaporization of butanol is higher than diesel and the ignition delay of the combustion prolonged, result in reduction of soot 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.
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: September 2003
Authors: Fabrizio Roccaforte, Lucia Calcagno, Paolo Musumeci, Francesco La Via, Filippo Giannazzo, Vito Raineri, Marco Mauceri, Sebania Libertino, Edoardo Zanetti
This level causes the increase in the net electron concentration, leading to the
formation of the ohmic contact on n-type SiC through the reduction of the depletion layer width.
A possible explanation of the formation of ohmic contact can be a reduction of the SBH with increasing annealing temperature.
From these data a small increase of the SBH can be observed with increasing temperature, that cannot explain the Schottky-Ohmic transition.
Literature data [8,9] related the formation of ohmic contact in Ni/SiC to the metal reaction and to the carbon redistribution during the reaction.
Therefore, the effective tunnelling barrier height for the transport of electrons decreases as conseguence of the reduction of depletion layer width, leading to the formation of ohmic contact.
A possible explanation of the formation of ohmic contact can be a reduction of the SBH with increasing annealing temperature.
From these data a small increase of the SBH can be observed with increasing temperature, that cannot explain the Schottky-Ohmic transition.
Literature data [8,9] related the formation of ohmic contact in Ni/SiC to the metal reaction and to the carbon redistribution during the reaction.
Therefore, the effective tunnelling barrier height for the transport of electrons decreases as conseguence of the reduction of depletion layer width, leading to the formation of ohmic contact.
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.
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.
Online since: March 2015
Authors: Biao Ma, Yu Yan, Chang Song Zheng, Yong Liu
Therein, Principal Component Analysis (PCA) was widely used in data mining on machinery wear and life prediction [4].
However, solutions for outliers of spectral nonlinearity data have not been proposed.
KPCA, maps the data space to the high dimensional space through nonlinear mapping.
Statistical methods for reliability data [M].
An application of DPCA to oil data for CBM modeling [J].
However, solutions for outliers of spectral nonlinearity data have not been proposed.
KPCA, maps the data space to the high dimensional space through nonlinear mapping.
Statistical methods for reliability data [M].
An application of DPCA to oil data for CBM modeling [J].
Online since: October 2007
Authors: Helmut Weiss, Yuri Suchorski, Jochen Gottfriedsen, Rafal Wrobel, Bartosz Strzelczyk
High-resolution spectra (pass energy 10 eV, step size 0.1-0.2 eV)
were recorded at room temperature with a hemispherical energy analyzer (PHOIBOS 150, SPECS)
with simultaneous photo-electron detection on 9 channels and fast data acquisition times (0.5 s per
data point) with a satisfactory signal-to-noise ratio.
In this work the effective oxidation state of Ce in cerium calixarene complexes by correlation of the XPS data for the studied samples 1 and 2 with those for reference samples CeO2-x with a known oxidation state was obtained.
In order to avoid X-ray induced damage of the CeO2 sample, the X-rays were applied in a "gentle" way by limiting the operation power (< 180 W) of the monochromatic X-ray source, which, in addition, was switched on only during the data acquisition.
Chem. (2006) submitted [24] Crystallographic data for the structure of (1) have been deposited with the Cambridge Crystallographic Data Centre as a supplementary publication 271677
[25] Crystallographic data for the structure of (2) have been deposited with the Cambridge Crystallographic Data Centre as a supplementary publication 616674
In this work the effective oxidation state of Ce in cerium calixarene complexes by correlation of the XPS data for the studied samples 1 and 2 with those for reference samples CeO2-x with a known oxidation state was obtained.
In order to avoid X-ray induced damage of the CeO2 sample, the X-rays were applied in a "gentle" way by limiting the operation power (< 180 W) of the monochromatic X-ray source, which, in addition, was switched on only during the data acquisition.
Chem. (2006) submitted [24] Crystallographic data for the structure of (1) have been deposited with the Cambridge Crystallographic Data Centre as a supplementary publication 271677
[25] Crystallographic data for the structure of (2) have been deposited with the Cambridge Crystallographic Data Centre as a supplementary publication 616674
Online since: August 2014
Authors: C. Christopher Seldev, N. Albert Singh, G.R. Gnana King
Thus the data compression becomes unavoidable.
Electronic document images are often a mixture of data types, such as text, background, and foreground.
In the absence of data compression algorithms, it is surely impossible to transmit a large volume of data over the up to date bandwidth-constrained networks in real time [5].
The compound image compression performance mainly depends on the segmentation outcome Regions of similar data types are grouped together in the segmentation process.
nCUI Wei and WU Siliang; “An Improved LZW Data Compression Algorithm and VLSI Implementation”; Chinese Journals Of Electronics Vol.17, No.2,( 2008)
Electronic document images are often a mixture of data types, such as text, background, and foreground.
In the absence of data compression algorithms, it is surely impossible to transmit a large volume of data over the up to date bandwidth-constrained networks in real time [5].
The compound image compression performance mainly depends on the segmentation outcome Regions of similar data types are grouped together in the segmentation process.
nCUI Wei and WU Siliang; “An Improved LZW Data Compression Algorithm and VLSI Implementation”; Chinese Journals Of Electronics Vol.17, No.2,( 2008)
Online since: January 2014
Authors: Qi Hui Li
The control method based on the data-driven is a new control algorithm born in recent years[6].
The reduction of rules is great.
Through data processing and fuzzy clustering algorithm, the collected data are divided into five fuzzy states from low to high.
Using the nearest neighbor clustering to deal with the data roughly, and then finding out the data clustering center, and the data clustering membership matrix by using FCM.
Tsimring: Data-based control trajectory planning for nonlinear systems [J].
The reduction of rules is great.
Through data processing and fuzzy clustering algorithm, the collected data are divided into five fuzzy states from low to high.
Using the nearest neighbor clustering to deal with the data roughly, and then finding out the data clustering center, and the data clustering membership matrix by using FCM.
Tsimring: Data-based control trajectory planning for nonlinear systems [J].
Online since: November 2019
Authors: Mikhail S. Chepchurov, Nikolay S. Lubimyi, Vladimir P. Voronenko, Daniel R. Adeniyi
Abstract: The use of metal-polymers in the manufacture of mold-forming parts allows for the significant reduction in price and time used in manufacturing of parts.
Using data on the thermal conductivity of metal-polymers in calculations of the cooling system of molds allows calculating the optimal cycle of obtaining the product.
Thus, in [4] is presented data on the duration of extrusion of a characteristic product, in this it is given that a complete cycle of obtaining a product by injection molding is 40 seconds.
The calculated data for the thermal conductivity λ is summarized in the table.
To process the experimental data the authors used the SciLab package which provides convenient functions for processing data arrays and their graphical interpretations [15], [16].
Using data on the thermal conductivity of metal-polymers in calculations of the cooling system of molds allows calculating the optimal cycle of obtaining the product.
Thus, in [4] is presented data on the duration of extrusion of a characteristic product, in this it is given that a complete cycle of obtaining a product by injection molding is 40 seconds.
The calculated data for the thermal conductivity λ is summarized in the table.
To process the experimental data the authors used the SciLab package which provides convenient functions for processing data arrays and their graphical interpretations [15], [16].
Online since: September 2015
Authors: Azlin Fazlina Osman, Abdulkader M. Alakrach, Tew Wei Hong
However, compounding by twin screw extruder caused more severe reduction in tensile toughness of the EVA containing 5 wt% organo-MMT, after this material was exposed to oxidative agent, 37°C.
The preliminary biostability and biocompatiility data of this nanocomposite system have been discussed in our recent publication [2].
As observed in the tensile properties data, the melt compounded EVA incorporating organo-MMT by Brabender internal mixer achieved the best performance at low filler loading (1wt%).
Comparison of toughness values between EVA and EVA nanocomposites with 5wt% organo-MMT produced from the twin screw extruder and internal mixer (Brabender plasticoder) However, Fig. 3 suggests that the melt compounded EVA containing 5wt% organo-MMT by twin screw extruder resulted in more severe reduction in tensile toughness upon oxidative exposure, 37°C as compared to Brabender compounded counterpart.
The preliminary biostability and biocompatiility data of this nanocomposite system have been discussed in our recent publication [2].
As observed in the tensile properties data, the melt compounded EVA incorporating organo-MMT by Brabender internal mixer achieved the best performance at low filler loading (1wt%).
Comparison of toughness values between EVA and EVA nanocomposites with 5wt% organo-MMT produced from the twin screw extruder and internal mixer (Brabender plasticoder) However, Fig. 3 suggests that the melt compounded EVA containing 5wt% organo-MMT by twin screw extruder resulted in more severe reduction in tensile toughness upon oxidative exposure, 37°C as compared to Brabender compounded counterpart.