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Online since: February 2011
Authors: Yi Ding, Hui Li Gong
The precipitation data, NDWI data, and NDVI data in Da Hinggan Ling during June 2010 are selected and analyzed according to the forest fire disaster happened in this area.
NDVI value Figure 3 shows the comparison of vegetation index data.
Secondly, the NDVI values of southwest Da Hinggan Ling in July have obvious reduction than in June.
Summary MODIS data are freely and easily available.
AQUA Earth Observing System satellite data policy, the main technical indicators and data sharing issues Localization,[J] REMOTE SENSING INFORMATION, 2002 (6) : 38~42
NDVI value Figure 3 shows the comparison of vegetation index data.
Secondly, the NDVI values of southwest Da Hinggan Ling in July have obvious reduction than in June.
Summary MODIS data are freely and easily available.
AQUA Earth Observing System satellite data policy, the main technical indicators and data sharing issues Localization,[J] REMOTE SENSING INFORMATION, 2002 (6) : 38~42
Online since: June 2018
Authors: Anatoliy Golovchenko, Yuliya Pazynich, Michał Potempa
The problem of radial distribution control for burden material as based on the data of radial gas distribution consists in the significant delay of control actions caused by stepwise formation of the proper structure of burden column as the determining factor for gas flow formation process.
This is supported by experimental data obtained from the researches of physical models of throat and on the operating blast furnaces by means of monitoring instruments for surface texture and column structure of burden.
The monitoring of burden surface was carried out on 24-hour basis according to two mutually perpendicular diameters of the throat with automated recording of the most useful data.
The information about the axes of point position for units 1 and 2 is provided by angular sensors 6, 7 and is transmitted to the computing unit 8, the latter determines the incompatibility level for axes of point of the units in the plane to provide its automatic minimization by means of monitoring system 3, it also determines and registers the position data for the checked burden surface.
The algorithm consists in automated search of maximum correlation conditions for two proper arrays of data from the scanners created for one or some geometric profiles of the burden surface.
This is supported by experimental data obtained from the researches of physical models of throat and on the operating blast furnaces by means of monitoring instruments for surface texture and column structure of burden.
The monitoring of burden surface was carried out on 24-hour basis according to two mutually perpendicular diameters of the throat with automated recording of the most useful data.
The information about the axes of point position for units 1 and 2 is provided by angular sensors 6, 7 and is transmitted to the computing unit 8, the latter determines the incompatibility level for axes of point of the units in the plane to provide its automatic minimization by means of monitoring system 3, it also determines and registers the position data for the checked burden surface.
The algorithm consists in automated search of maximum correlation conditions for two proper arrays of data from the scanners created for one or some geometric profiles of the burden surface.
Online since: July 2019
Authors: Salvo Coffa, Francesco La Via, Alberto Campione, Nicolo Piluso, Simona Lorenti, Andrea Severino, Giuseppe Arena
Horizontal reactor with rotating holder is mainly used for 6 inches mass production, leading to an effective cost reduction.
The data are showed as a function of substrates position within the ingot (ID).
A reduction (~5%) of SFs is detected.
Moreover, a significant reduction (40%) of morphological defects (particles, micropits, carrots) is observed.
The epitaxy grown with HGRc shows a significant reduction of morphological defects.
The data are showed as a function of substrates position within the ingot (ID).
A reduction (~5%) of SFs is detected.
Moreover, a significant reduction (40%) of morphological defects (particles, micropits, carrots) is observed.
The epitaxy grown with HGRc shows a significant reduction of morphological defects.
Online since: November 2014
Authors: Zhi Fang Zhu, Jian Zhong Zhu, Jian Biao Chen, Liang Chen, Min Ji
Preparation of a Magnetic, Hydrophilic and Bacteria Attachable Ceramsite and Its Application in Wastewater Treatment
Zhi-Fang ZHU1,a, Jian-Zhong ZHU1,b,*, Liang CHEN2,c, Jian-Biao CHEN3,d
and Min JI1,e
1Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
2Qinhuai River Adm, Nanjing,Jiangsu210010, Peoples R China
3Nantong Hydrographic Office Nantong,Jiangsu226000, China
a873710641@qq.com, bzhuhhai2010@hhu.edu.cn, c987203352 @qq.com, d924901400@qq.com, e942548695@qq.com
*Corresponding author
Keywords: water retention, void fraction, magnetic powder, organic reduction rate
Abstract.
And the performance of the modified ceramsite in the contact aeration bioreactors was compared with the packing which without magnetic powder, polyvinyl alcohol and amylum showed that the modified ceramsitethe had obviously advantages in terms of time it took for the reactors to attain the stable treatment, organic reduction rate and water retention.
Summary The present data has demonstrated that the optimal percentage, cement 15g, lime 8g, gypsum 2g, amylum 2g, expanded perlite 10g, polyvinyl alcohol 3g, magnetic powder 7g, sodium bicarbonate 5g, fly ash 45g and binder 10g respectively, can be used as components for production of the novel biological ceramsite with desired physical properties, the physical parametres were 49.72% for the void fraction, 21.96% for water retention.
And the performance of the modified ceramsite in the contact aeration bioreactors was compared with the packing which without magnetic powder, polyvinyl alcohol and amylum showed that the modified ceramsitethe had obviously advantages in terms of time it took for the reactors to attain the stable treatment, organic reduction rate and water retention.
Summary The present data has demonstrated that the optimal percentage, cement 15g, lime 8g, gypsum 2g, amylum 2g, expanded perlite 10g, polyvinyl alcohol 3g, magnetic powder 7g, sodium bicarbonate 5g, fly ash 45g and binder 10g respectively, can be used as components for production of the novel biological ceramsite with desired physical properties, the physical parametres were 49.72% for the void fraction, 21.96% for water retention.
Online since: November 2013
Authors: Jaroslaw Piątkowski
The following parameters were determined: tensile strength (Rm), yield strength (R0.2), elongation (A5), and reduction of area after specimen fracture (Z).
Average values of the reduction of area after specimen fracture (Z) and of elongation (A5), plotted in function of the technological variant selected, are shown in Figure 3.
Data on the mechanical and thermal loads under which pistons are operating show that piston crown must withstand the stresses of approximately 80 MPa at the moment of the maximum load application.
These data indicate that overheating the alloy to a temperature of 920oC and holding at this temperature for 30 minutes (SP) as well as a combined process of overheating and modification with phosphorus (SPM) result in the smallest drop of the yield strength R0.2 at elevated temperatures (42%).
On the other hand, a growing tendency has been observed in the reduction of area and unit elongation after fracture (both at ambient temperature and at the of 250°C).
Average values of the reduction of area after specimen fracture (Z) and of elongation (A5), plotted in function of the technological variant selected, are shown in Figure 3.
Data on the mechanical and thermal loads under which pistons are operating show that piston crown must withstand the stresses of approximately 80 MPa at the moment of the maximum load application.
These data indicate that overheating the alloy to a temperature of 920oC and holding at this temperature for 30 minutes (SP) as well as a combined process of overheating and modification with phosphorus (SPM) result in the smallest drop of the yield strength R0.2 at elevated temperatures (42%).
On the other hand, a growing tendency has been observed in the reduction of area and unit elongation after fracture (both at ambient temperature and at the of 250°C).
Online since: March 2006
Authors: Hong Wei Ma, Zai Bin Cheng, Jianyun Chen, Zhi Hua Wang
Modal vibration test data ,such as stuctural natural frequencies and mode shapes ,can characterize
the state of the structure[1]and using them to determine global defects has been investigated[2,3].
If the linear analytical model were an exact match to the experimental data, the predicted frequency changes given by Eq.4 would be identical to the measured changes
So,we only consider the split mode with the lower frequency as it undergoes a greater frequency reduction, and, hence, is more sensitive to damage.
The damage will be introduced by subjecting a specific element to a homogeneous 25% reduction in the elastic moduli for the shell model.
It is found that the proposed approach gives good predictions of the absolute stiffness reduction with maximum errors less than 8%.
If the linear analytical model were an exact match to the experimental data, the predicted frequency changes given by Eq.4 would be identical to the measured changes
So,we only consider the split mode with the lower frequency as it undergoes a greater frequency reduction, and, hence, is more sensitive to damage.
The damage will be introduced by subjecting a specific element to a homogeneous 25% reduction in the elastic moduli for the shell model.
It is found that the proposed approach gives good predictions of the absolute stiffness reduction with maximum errors less than 8%.
Online since: September 2014
Authors: Geun Min Choi
The basic requirements for a future integration device are minimum feature size reduction with device integration and high-speed operation with sufficient cell capacitance.
Furthermore, the amount of air exhaust from the wet system is drastically reduced, resulting in a reduction of clean air production volume.
Both in line data and final yield improvement data (0.3 to 0.5% yield up) validates the effectiveness of this cleaning step (Figure 1).
Especially, the reduction of its etch rate is critical as the film thickness decreases.
Figure 4 compares the dependence of metal particles removal efficiency with a high oxidation-reduction potential(ORP) value.
Furthermore, the amount of air exhaust from the wet system is drastically reduced, resulting in a reduction of clean air production volume.
Both in line data and final yield improvement data (0.3 to 0.5% yield up) validates the effectiveness of this cleaning step (Figure 1).
Especially, the reduction of its etch rate is critical as the film thickness decreases.
Figure 4 compares the dependence of metal particles removal efficiency with a high oxidation-reduction potential(ORP) value.
Online since: July 2014
Authors: Hong Yu Shao, Nan Zhao
Principal component analysis algorithm is widely applied in solving a large number of dimension reduction problems for high-dimensional data in fields such as image identification and comprehensive evaluation due to its clear conception and simple application.
The PCA based on covariance matrix and correlation coefficient matrix is very sensitive to abnormal values so that the data structure is distorted.
In data analysis, one or several abnormal values can make the data structure distorted.
The PCA based on covariance matrix and correlation coefficient matrix is very sensitive to abnormal values so that the data structure is distorted.
In data analysis, one or several abnormal values can make the data structure distorted.
Online since: July 2019
Authors: Pongsakorn Leetrakul, Komgrit Lawanwong
From the experimental results, decreasing of bending moment by bottom pushing-up resulted in the springback reduction.
Fig. 3 shows the comparison of the calculated results of springback angles by calculating from the Y-U and IH model with the corresponding experimental data in conventional U-bending process for various pressure pad; F2.
From this result, it can be seen that the Y–U model agree well with the experimental data to descript the springback angles than IH model.
Fig. 7 shows the springback summarizes of experimental data for 780G and 980Y obtained from experiments under the constant clamping force of 2 kN with various x distances.
(a) summarizes the experimental data of 780Y (b) summarizes the experimental data of 980G Fig. 7.
Fig. 3 shows the comparison of the calculated results of springback angles by calculating from the Y-U and IH model with the corresponding experimental data in conventional U-bending process for various pressure pad; F2.
From this result, it can be seen that the Y–U model agree well with the experimental data to descript the springback angles than IH model.
Fig. 7 shows the springback summarizes of experimental data for 780G and 980Y obtained from experiments under the constant clamping force of 2 kN with various x distances.
(a) summarizes the experimental data of 780Y (b) summarizes the experimental data of 980G Fig. 7.
Online since: June 2019
Authors: Rostislav Drochytka, Vit Černý, Jana Húšťavová
It was found that influence of aeration of calcium silicate composite causes reduction of compressive strength by roughly 85%.
Figure 3 Compressive strength of composites and AAC The values were first analyzed as an integrated data set.
It is interesting that 30% replacement of each of the raw materials caused the most marked reduction of compressive strength of AAC compared to composite, the drop was by about 88%.
Decrease of intensity of tobermorite or reduction of development of crystallization of this mineral in expanded structure is relatively surprising.
It was found that after expansion of AAC, the reduction of strengths compared to non-expanded composite is almost constant.
Figure 3 Compressive strength of composites and AAC The values were first analyzed as an integrated data set.
It is interesting that 30% replacement of each of the raw materials caused the most marked reduction of compressive strength of AAC compared to composite, the drop was by about 88%.
Decrease of intensity of tobermorite or reduction of development of crystallization of this mineral in expanded structure is relatively surprising.
It was found that after expansion of AAC, the reduction of strengths compared to non-expanded composite is almost constant.