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Online since: February 2013
Authors: Ping Wang, Wan Shui Wu, Bang Zhu Zhu
Some suggestions on CO2 emissions reduction in Guangdong are given based on the analysis.
Section 2 describes the data and LMDI model.
Data and Methodology Data.
All data used in this study are shown in Fig.1, obtained from the Guangdong Statistics Yearbook (1981, 1986 to 2011)[18].
Therefore, energy intensity powerfully contributes to the reduction of CO2 emissions growth.
Section 2 describes the data and LMDI model.
Data and Methodology Data.
All data used in this study are shown in Fig.1, obtained from the Guangdong Statistics Yearbook (1981, 1986 to 2011)[18].
Therefore, energy intensity powerfully contributes to the reduction of CO2 emissions growth.
Online since: December 2014
Authors: Lourival Marin Mendes, Stefânia Lima Oliveira, Rafael Farinassi Mendes, Ticyane Pereira Freire
The products subjected to these treatments were weathered for 40 days, and climatological data were monitored daily.
The specimens were exposed to weathering for 40 days and the climatological data were monitored daily.
Statistical analysis of data.
Reductions of MOE and MOR to −81.2 and −71.4% were obtained, respectively.
For MOR, the reductions were 37% after three cycles of aging and 49% after 6 cycles of aging.
The specimens were exposed to weathering for 40 days and the climatological data were monitored daily.
Statistical analysis of data.
Reductions of MOE and MOR to −81.2 and −71.4% were obtained, respectively.
For MOR, the reductions were 37% after three cycles of aging and 49% after 6 cycles of aging.
Online since: August 2011
Authors: Heng Tian, Ji Hui Wang, Yun Dong Ji, Yan Zi Yin, Xu Feng Hao, Jiu Xiao Sun
And Optical Fiber (OF) with 245μm exhibit about 23.5% reduction.
Rong-mei Liu et al [6] made OF embedded parallel with the direction of the reinforcing fibers (0°), and observed that the tensile strength of CFRPs at [0/-45/45/90/OF/90/45/-45/0]s exhibited a maximum reduction (nearly 7%) as compared to the sample without OF.
Jensen et al [7] have investigated the reduction in compressive properties caused by the incorporation of OF in a graphite/bismaleimide matrix.
In the laminate of [03, 902, 0] s, a strength reduction of 70% and a stiffness reduction of 20% were observed during compressive testing.
And the average of group is gotten from every valid data of specimens.
Rong-mei Liu et al [6] made OF embedded parallel with the direction of the reinforcing fibers (0°), and observed that the tensile strength of CFRPs at [0/-45/45/90/OF/90/45/-45/0]s exhibited a maximum reduction (nearly 7%) as compared to the sample without OF.
Jensen et al [7] have investigated the reduction in compressive properties caused by the incorporation of OF in a graphite/bismaleimide matrix.
In the laminate of [03, 902, 0] s, a strength reduction of 70% and a stiffness reduction of 20% were observed during compressive testing.
And the average of group is gotten from every valid data of specimens.
Mechanochemical Phenomena during Fine Comminution of Clay Minerals for Ceramic Bricks and Roof-Tiles
Online since: September 2010
Authors: László A. Gömze
The laboratory experiments made by author had shown
an intensive reduction of specific surface volume at the beginning of grinding, further relatively
slow growth and reduction of BET and Langmuir surfaces were observed.
In the ceramic facing-brick and roof-tile industry the reduction of particle sizes is one of the most energy-intensive technological processes not only because of the used equipment and physico-mechanical properties of milled materials, but of the mechanochemical phenomena taking place during fine comminution.
Data collection times were of 2 seconds per steps.
The phases were determined by Search/Match method using powder diffraction data base file PDF2.
After 60 minutes the specific surface reduction diminished considerable and after 120 minutes of comminution there were no remarkable changes in specific surfaces.
In the ceramic facing-brick and roof-tile industry the reduction of particle sizes is one of the most energy-intensive technological processes not only because of the used equipment and physico-mechanical properties of milled materials, but of the mechanochemical phenomena taking place during fine comminution.
Data collection times were of 2 seconds per steps.
The phases were determined by Search/Match method using powder diffraction data base file PDF2.
After 60 minutes the specific surface reduction diminished considerable and after 120 minutes of comminution there were no remarkable changes in specific surfaces.
Online since: January 2014
Authors: Tie Jun Wu, Zhi Qing Wu
Reverse engineering mainly includes data collection, data processing, model reconstruction.
The preprocess of the point cloud mainly includes eliminating abnormal data, data sampling, data smoothing, filtering and noise reduction, multi-view cloud split, point cloud data filtering, redundant data merging, feature extraction, data compaction, point cloud blocking, and so on.
Such much data is a test for data operation.
The next data encapsulation can arrange the point cloud data uniformly.
The new data file can be opened in Ug.
The preprocess of the point cloud mainly includes eliminating abnormal data, data sampling, data smoothing, filtering and noise reduction, multi-view cloud split, point cloud data filtering, redundant data merging, feature extraction, data compaction, point cloud blocking, and so on.
Such much data is a test for data operation.
The next data encapsulation can arrange the point cloud data uniformly.
The new data file can be opened in Ug.
Online since: December 2011
Authors: Chang Jian Zhi, Xiao Zhong Du, Xiao Ping Zhang, Rui Ren
Lack of new breakthrough in technical theory, researchers mainly focused on intelligent control [3-6], which relied on large production data and the application is limited to a certain degree.
This kind of methods, which applies self-learning function to control rolling process, relies on large production data and analytic models have not been established.
The value of Φ can be calculated by Eq. 4 according to the data of different products collected from production site.
Test data are listed in Table 3.
Table 3 Test data when target crown adjustment value is -0. 020mm (steel grade Q235B, inlet thickness 30. 230mm, target thickness 3.500mm) Stand No. 1 2 3 4 5 6 outlet thickness after adjusting rolling regulations h1[mm] 18.266 10.585 6.691 4.956 4.074 3.536 rolling force P[KN] 18842 17774 16378 12036 9420 7207 variation of rolling force [KN] -834 -723 -656 variation of crown [mm] -0.019 After adjusting the reduction of each stand by the combined gauge and shape control scheme, the variation of strip crown of last stand is basically eliminated while exit gauge remains constant.
This kind of methods, which applies self-learning function to control rolling process, relies on large production data and analytic models have not been established.
The value of Φ can be calculated by Eq. 4 according to the data of different products collected from production site.
Test data are listed in Table 3.
Table 3 Test data when target crown adjustment value is -0. 020mm (steel grade Q235B, inlet thickness 30. 230mm, target thickness 3.500mm) Stand No. 1 2 3 4 5 6 outlet thickness after adjusting rolling regulations h1[mm] 18.266 10.585 6.691 4.956 4.074 3.536 rolling force P[KN] 18842 17774 16378 12036 9420 7207 variation of rolling force [KN] -834 -723 -656 variation of crown [mm] -0.019 After adjusting the reduction of each stand by the combined gauge and shape control scheme, the variation of strip crown of last stand is basically eliminated while exit gauge remains constant.
Online since: August 2013
Authors: Xue Fang Bao
Survey data shows that, for daily life, the ideal indoor noise level shall not be higher than 40dB(A), and 55dB(A) or higher noise level may bring about complaints; ideal noise level for sleeping is 30dB(A) or less.
Moreover, low sound reduction is found within the range of medium frequency.
Its measured sound reduction-frequency characteristic curve is shown in Fig. 1.
Fig. 2 GRC sound insulation - frequency characteristic curve In addition to field measurement results, the sound reduction testing data of lightweight boards produced by some China-based manufacturers has failed to measure up to sound insulation standards.
Furthermore,the measured weighted sound reduction (Rw) of 100mm-thick fiber-reinforced partition board from a certain company limited of new building materials with a surface density of 42.5 kg/m2 is 37.5dB; its sound insulation - frequency curve is shown in Fig. 3.It is observed from above-noted test data that the weighted sound reduction of single-layer walls with one-tier structure made from single material is generally lower than 40dB. 3.
Moreover, low sound reduction is found within the range of medium frequency.
Its measured sound reduction-frequency characteristic curve is shown in Fig. 1.
Fig. 2 GRC sound insulation - frequency characteristic curve In addition to field measurement results, the sound reduction testing data of lightweight boards produced by some China-based manufacturers has failed to measure up to sound insulation standards.
Furthermore,the measured weighted sound reduction (Rw) of 100mm-thick fiber-reinforced partition board from a certain company limited of new building materials with a surface density of 42.5 kg/m2 is 37.5dB; its sound insulation - frequency curve is shown in Fig. 3.It is observed from above-noted test data that the weighted sound reduction of single-layer walls with one-tier structure made from single material is generally lower than 40dB. 3.
Online since: February 2013
Authors: Ping Yu Wan, Jie Miao, Yong Mei Chen
Gyenge’s group[13] studied influence of surfactants on the electro-reduction of O2 to H2O2, in which they found that cationic surfactant increased the rate of O2 reduction to H2O2 and reduced the O2 diffusion coefficient towards the electrode surface.
Based on these datas, the energy consumption for the production of 1 ton water with 5mg/L H2O2 was calculated (Table.1).
As for the data of No.1-5 in Table.1, as flow rate increased, the produced H2O2 concentration decreased, while the current efficency increased more dramatically due to the further reduction of H2O2 was avoided by leaving the cell quickly.
For the data of No. 6-10, the concentration of H2O2 increased as the aeration rate, in other words, the concentration of O2 was increased.
For the data of No. 11-15, as the current density increased, both of the 2-electron-reduction and 4-electron-reduction of O2 were inhanced, resulted in the concentration of H2O2 increased while the current effiency decreased more markedly.
Based on these datas, the energy consumption for the production of 1 ton water with 5mg/L H2O2 was calculated (Table.1).
As for the data of No.1-5 in Table.1, as flow rate increased, the produced H2O2 concentration decreased, while the current efficency increased more dramatically due to the further reduction of H2O2 was avoided by leaving the cell quickly.
For the data of No. 6-10, the concentration of H2O2 increased as the aeration rate, in other words, the concentration of O2 was increased.
For the data of No. 11-15, as the current density increased, both of the 2-electron-reduction and 4-electron-reduction of O2 were inhanced, resulted in the concentration of H2O2 increased while the current effiency decreased more markedly.
Online since: June 2025
Authors: Péter Zoltán Kovács, Attila Baksa, Marwen Habbachi
Given the importance of the thinning in the ISF process and the limited data on the influence of the process parameters, this study aims to investigate the impact of the step depth ∆z and the feed rate F on the thickness varia- tion during the SPIF of pure aluminum alloy Al1050.
It can be observed that increasing the step size leads to a greater thickness reduction.
The numerical results demonstrated a good level of agreement with the experimental data when comparing the wall thickness distribution across the defined three main regions.
A greater thickness reduction occurred where stretching is the primary deformation mechanism, and this effect became more pronounced as the step size increased. 3.
Numerical and experimental investigation of the effect of strength of aluminum 6061 alloy on thickness reduction in single-point incremental forming.
It can be observed that increasing the step size leads to a greater thickness reduction.
The numerical results demonstrated a good level of agreement with the experimental data when comparing the wall thickness distribution across the defined three main regions.
A greater thickness reduction occurred where stretching is the primary deformation mechanism, and this effect became more pronounced as the step size increased. 3.
Numerical and experimental investigation of the effect of strength of aluminum 6061 alloy on thickness reduction in single-point incremental forming.
Online since: February 2012
Authors: Hossein Baderestani, Heshmat Amirzadeh, Javad Banavi
The simultaneous production of water and oil causes lots of negative effects on the reservoir performance such as significant reduction in oil recovery, corrosion, the cost of oil and water separation, environmental pollutions, and etc.
Additionally, since it is not well-matched with its observation data, by the use of SimOpt software, a reasonable match between the simulated and observed data were achieved.
After achieving a reasonable match between the observed and simulated data in SimOpt, by the use of ECLIPSE 100 software various scenarios are investigated.
This event results in a significant reduction of oil relative permeability and an increase in water-relative permeability, which finally decreases the reservoir recovery factor [2].
According to the geological data, this reservoir contains three faults, which divide the reservoir into four parts but one equilibrium region because of the transmissibility of the faults, and there are 12 production wells (Fig. 1).
Additionally, since it is not well-matched with its observation data, by the use of SimOpt software, a reasonable match between the simulated and observed data were achieved.
After achieving a reasonable match between the observed and simulated data in SimOpt, by the use of ECLIPSE 100 software various scenarios are investigated.
This event results in a significant reduction of oil relative permeability and an increase in water-relative permeability, which finally decreases the reservoir recovery factor [2].
According to the geological data, this reservoir contains three faults, which divide the reservoir into four parts but one equilibrium region because of the transmissibility of the faults, and there are 12 production wells (Fig. 1).