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Online since: January 2012
Authors: Ying Jie Cai, Xiao Jun Yang, Dong Sheng Xia, Qing Fu Zeng
The degradation rate of X-3B was obtained from weighted linear least squares analysis of the experimental data, and accorded with the pseudo-first order kinetics equation.
Production of ∙OH radicals from H2O2 utilizing individual catalytic method is limited since ∙OH radicals are scavenged by the excess amount of H2O2 in solution, resulting in reduction of the degradation efficiency.
Production of ∙OH radicals from H2O2 utilizing individual catalytic method is limited since ∙OH radicals are scavenged by the excess amount of H2O2 in solution, resulting in reduction of the degradation efficiency.
Online since: July 2020
Authors: Wei Huang
The most effective isolation technology is to use rubber isolation bearing, but the change of the compression strain field of rubber material has no feasible law so far, and the properties of rubber material will directly affect the performance of the isolation bearing, resulting in the reduction of the isolation effect of buildings or structures.
In a large number of optical pictures taken by the camera, there are a lot of noise data, and there are still many optical black spots or bright spots.
If we can remove these interference factors such as noise data and bright and dark points, the data will be more effective.
In a large number of optical pictures taken by the camera, there are a lot of noise data, and there are still many optical black spots or bright spots.
If we can remove these interference factors such as noise data and bright and dark points, the data will be more effective.
Online since: December 2012
Authors: Shang Ming Shi, Xiao Xiong Wu, Pan Zhao, Liang Zhang, Hua Bin Wei, Xue Min Bai
The exploration and utilization of the Hot Dry Rock in the deep of the northern part of Songliao Basin is very important for the energy conservation and emission reductions and the sustainable development of Daqing Oilfield which heat consumption is very higher in oil production.
The oil field produced water is the hot water formed by underground water content of crude oil after de-oil processing, usually temperature for 35 to 42 ℃, is a special type of low-temperature geothermal resources[5].The data show that the Daqing Oilfield is at its later high water-cut period with the oil output water is rising from July 2006 to June 2007.
The data of gravity inversion indicates that the Songliao Basin is one of the thinnest basins in China.
Drilling temperature measurement data in the center of the basin indicates that geothermal gradient within 1000 ~ 2000m depth is 4.8 ℃/100m, when the depth increased to below 2500m depth, the gradient dropped to 3.0 °C/100m, this is mainly due to the increase of depth, the rock density, thermal conductivity and the decrease of porosity.
The oil field produced water is the hot water formed by underground water content of crude oil after de-oil processing, usually temperature for 35 to 42 ℃, is a special type of low-temperature geothermal resources[5].The data show that the Daqing Oilfield is at its later high water-cut period with the oil output water is rising from July 2006 to June 2007.
The data of gravity inversion indicates that the Songliao Basin is one of the thinnest basins in China.
Drilling temperature measurement data in the center of the basin indicates that geothermal gradient within 1000 ~ 2000m depth is 4.8 ℃/100m, when the depth increased to below 2500m depth, the gradient dropped to 3.0 °C/100m, this is mainly due to the increase of depth, the rock density, thermal conductivity and the decrease of porosity.
Online since: April 2011
Authors: Leandro Costa de Oliveira, Tsuzuki Marcos de Sales Guerra
The tools used were end mills, and its dimensions and cutting conditions considered data from the manufacturer.
In the example illustrated in Figure 4, we consider the use of the data described in Table 2, where values of rotations we have to meet very high cutting speed used, whose value was set at 190 m/min for all tools.
Example Table 2 – Cutting data used.
[mm/rot] feed/min [mm/min] 3 1 0,003 2 0,5 60478,9 0,009 544,31 3 2 0,010 4 1 30239,4 0,030 907,18 3 4 0,023 5 2 15119,7 0,069 1043,26 3 6 0,030 6 3 10079,8 0,090 907,18 3 8 0,038 10 4 7559,9 0,114 861,82 3 10 0,043 12 5 6047,9 0,129 780,18 3 16 0,065 17 8 3779,9 0,195 737,09 3 20 0,070 21 10 3023,9 0,210 635,03 With these data, we obtained the following values of the cutting path length, shown in Table 3, considering a depth of 5 mm.
Likewise, with the change machine in use, uses cutting data compatible with other equipment and determines this is a new situation.
In the example illustrated in Figure 4, we consider the use of the data described in Table 2, where values of rotations we have to meet very high cutting speed used, whose value was set at 190 m/min for all tools.
Example Table 2 – Cutting data used.
[mm/rot] feed/min [mm/min] 3 1 0,003 2 0,5 60478,9 0,009 544,31 3 2 0,010 4 1 30239,4 0,030 907,18 3 4 0,023 5 2 15119,7 0,069 1043,26 3 6 0,030 6 3 10079,8 0,090 907,18 3 8 0,038 10 4 7559,9 0,114 861,82 3 10 0,043 12 5 6047,9 0,129 780,18 3 16 0,065 17 8 3779,9 0,195 737,09 3 20 0,070 21 10 3023,9 0,210 635,03 With these data, we obtained the following values of the cutting path length, shown in Table 3, considering a depth of 5 mm.
Likewise, with the change machine in use, uses cutting data compatible with other equipment and determines this is a new situation.
Online since: August 2014
Authors: Wen Lin Wang, Xiao Yan Tang, Bin Liang, Yun Feng Liu
The Available Research Data.There are some related research data available in this study.
Data Collection and Statistics.
The survey data are shown in table 4.
Yapu village gained the highest value because its reduction in chemical fertilization and pesticides application, mainly due to technology utilization.
But in this study, the researchers observed its sophisticated changes, the index system needs to be improved or changed according to the following considerations: The index in this paper was established according to current agriculture policy, the achievements of ecological village construction and some data from research papers, they can be applied universally.
Data Collection and Statistics.
The survey data are shown in table 4.
Yapu village gained the highest value because its reduction in chemical fertilization and pesticides application, mainly due to technology utilization.
But in this study, the researchers observed its sophisticated changes, the index system needs to be improved or changed according to the following considerations: The index in this paper was established according to current agriculture policy, the achievements of ecological village construction and some data from research papers, they can be applied universally.
Online since: February 2016
Authors: Anna Laura Pisello, Federica Rosso, Franco Cotana, Veronica Lucia Castaldo, Cristina Piselli, Marco Ferrero
Additionally, they significantly contribute to the reduction of building energy demand for cooling during summertime, by improving both indoor air quality and thermal comfort conditions [3-5].
According to this study, such materials may be considered as common diffusive surfaces by introducing a reduction factor.
On the other hand, the use of phase change materials in reflective coatings leads to further reduction and delay of heat loads given their latent heat storage capability.
UNI EN ISO 13501 [55] classifies materials on a scale according to their fire reaction: from A1, which labels non combustible materials, to E and F, connotating poor behavior with fire or not available data.
(i) heating-cooling energy savings, (ii) global warming mitigation, and (iii) waste reduction, will be presented.
According to this study, such materials may be considered as common diffusive surfaces by introducing a reduction factor.
On the other hand, the use of phase change materials in reflective coatings leads to further reduction and delay of heat loads given their latent heat storage capability.
UNI EN ISO 13501 [55] classifies materials on a scale according to their fire reaction: from A1, which labels non combustible materials, to E and F, connotating poor behavior with fire or not available data.
(i) heating-cooling energy savings, (ii) global warming mitigation, and (iii) waste reduction, will be presented.
Online since: January 2017
Authors: Walairat Chandra-Ambhorn, Pichnipa Khownpurk, Wichitra Wongpromrat
The experimental data better correlated with pseudo-second order model.
Several methods such as oxidation or/and reduction, precipitation, solid/liquid separation, reverse osmosis, biological removal process and adsorption [12] have been developed to remove arsenic from contaminated water.
Kinetics Study Pseudo-first order and pseudo-second order models were applied to analyse adsorption data.
For the kinetics study, the experiment data correlated with pseudo-second order model.
Several methods such as oxidation or/and reduction, precipitation, solid/liquid separation, reverse osmosis, biological removal process and adsorption [12] have been developed to remove arsenic from contaminated water.
Kinetics Study Pseudo-first order and pseudo-second order models were applied to analyse adsorption data.
For the kinetics study, the experiment data correlated with pseudo-second order model.
Online since: August 2013
Authors: Jian Xin Yang, Chun Li Li, Rui Li
The functional tolerancing is now widely accepted by industry for contributing to a reduction of manufacturing costs while improving product quality, which can be represented by the ISO 1101 tolerance language [1].
To determine the displacement of each ending point along the analysis direction due to a junction between two parts, all the parts are assumed perfect, only the surfaces of the studied junction have defects related to the datum system of the toleranced part.
The primary plane of the bushing is directly in contact with the datum line of the fixed reference system.
(8) According to the localization datum precedence, the displacement of point Q1 is obtained.
To determine the displacement of each ending point along the analysis direction due to a junction between two parts, all the parts are assumed perfect, only the surfaces of the studied junction have defects related to the datum system of the toleranced part.
The primary plane of the bushing is directly in contact with the datum line of the fixed reference system.
(8) According to the localization datum precedence, the displacement of point Q1 is obtained.
Online since: December 2012
Authors: Chao Chen, Ding Huang, Kun Wang
On the average, the conversion of intrazonal grassland into cropland led soil organic carbon density (SOCD) decreased from 22.49 kg m-2 to 13.24 kg m-2, and soil total nitrogen density (STND) from 2.23 kg m-2 to 1.27 kg m-2; that is, the meadow conversion resulted in a 41-43% reduction of SOCD and STND in 0–60 cm soil depth over about 20 years.
Data analysis Each variable of the three plots was averaged for statistical analysis.
The decreasing soil quality was due to the enhanced decomposition of organic matter, erosion, as well as a reduction in C input [33,34].
Hence, the conversion of intrazonal grassland into cropland led to the reduction in soil quality in the Bashang area.
Data analysis Each variable of the three plots was averaged for statistical analysis.
The decreasing soil quality was due to the enhanced decomposition of organic matter, erosion, as well as a reduction in C input [33,34].
Hence, the conversion of intrazonal grassland into cropland led to the reduction in soil quality in the Bashang area.
Online since: January 2024
Authors: Danielle Ferreira dos Santos, Anna Cecília Moraes Martuchelli
The concept of recycling and reuse of these materials for use in civil construction can become an interesting solution for the reduction of urban solid waste that would be destined to the formation of large volumes in sanitary landfills.
The authors Mehta and Monteiro [44], discuss the reduction of concrete workability with the addition of any type of fiber, regardless of its type.
Table 2 provides data regarding the permeability test of the specimens when immersed in water.
Leung, An investigation on the performance enhancement and cost reduction of engineered cementitious composites developed with local PVA and PET fibers, Journal of Sustainable Cement-Based Materials. 30 (2022) 1277–1282
The authors Mehta and Monteiro [44], discuss the reduction of concrete workability with the addition of any type of fiber, regardless of its type.
Table 2 provides data regarding the permeability test of the specimens when immersed in water.
Leung, An investigation on the performance enhancement and cost reduction of engineered cementitious composites developed with local PVA and PET fibers, Journal of Sustainable Cement-Based Materials. 30 (2022) 1277–1282