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Online since: June 2010
Authors: Dian Bo Yang
The environmental impacts are
illustrated with many examples and concrete data.
From an industrial perspective, soil pollution can lead to various effects, such as reduction in the soil fertility, significantly reducing the crop production, imbalance in the plant and animal species and deposition of silt in the underwater deposits.
Both fires accidents reduction and mitigation of environmental damage during fire operation need more effort.
From an industrial perspective, soil pollution can lead to various effects, such as reduction in the soil fertility, significantly reducing the crop production, imbalance in the plant and animal species and deposition of silt in the underwater deposits.
Both fires accidents reduction and mitigation of environmental damage during fire operation need more effort.
Online since: December 2013
Authors: Ondrej Stevka, Vladimir Dekýš, Alzbeta Sapietova
In this paper is presented using FRF functions as a useful tool for the interpretation of measured data.
1.
Then the sub-tasks are addressed: reduction of potential sources of sound and vibration, modification of transfer paths and finally vibration and noise reduction of excitation parts.
Then the sub-tasks are addressed: reduction of potential sources of sound and vibration, modification of transfer paths and finally vibration and noise reduction of excitation parts.
Online since: August 2013
Authors: Pan Wang, Jian Min Wang, Chao Wei Shen, Wen Ting Jiang, Dong Li
The results indicate that, the reduction of ceramsite LWAC prism compressive strength is faster than that of cubic compressive strength.
After naturally cooling down to room temperature, there are different degrees of reduction happen for the cubic and prism compressive strength of ceramsite LWAC.
The curves of the cubic and prism compressive strength of ceramsite LWAC test blocks along with the heating temperature is obtained by fitting the test data results.
After naturally cooling down to room temperature, there are different degrees of reduction happen for the cubic and prism compressive strength of ceramsite LWAC.
The curves of the cubic and prism compressive strength of ceramsite LWAC test blocks along with the heating temperature is obtained by fitting the test data results.
Online since: February 2011
Authors: Qiang Zhang, Qiu Shuang Song, Shou Ju Li, Ying Tian
The results showed that: the inversion of multi-objective design method is feasible to design a new type of driving hard rock cutting efficiency of institutions to provide 9%, compared with 20% reduction in energy consumption, lower tool wear 55.2% for the rock tunnel excavation needs.
Inverse design and modern analysis and design are complementary. large amounts of data and information required by inversion design must be obtained through analysis and design.
New design of the hard rock tunneling Hearder efficiency increases by 9%, compared with 20% reduction in energy consumption.
Inverse design and modern analysis and design are complementary. large amounts of data and information required by inversion design must be obtained through analysis and design.
New design of the hard rock tunneling Hearder efficiency increases by 9%, compared with 20% reduction in energy consumption.
Online since: October 2011
Authors: Jun Lu, Chun Die Li, Liang Wang, Yu Lu Chen, Xin Hui Zhang
Through experiments and simulations, 6 variables including wind speed(WS), green ratio(GR), impervious ratio(IR), average surface temperature(AST) , shadow ratio(SR), H / W were chosen and summarized as factors by dimension reduction in factors analysis; further, the dominant variables and factors in different time were confirmed through multiple linear regression analysis of the factors/ variables and UII.
Fig.1 Line of mobile observation in residential Firstly, 6 variables including WS, GR, IR, AST, SR and H/ W of each measuring point were extracted quantitatively ; secondly, variables is deal with dimensionality reduction by factor analysis to be summarized as factors; Finally, regression analysis of the factors and variables between UII respectively are conducted to examine the significant degree of these independent variables influencing the UII.
This will lead to the reduction of correlation degree of regression analysis between factor and UII.
Conclusions By actual measurement and heat island analysis of one typical residential quarter in mountain city during two seasons, a new data processing method is put forward——factor analysis
Fig.1 Line of mobile observation in residential Firstly, 6 variables including WS, GR, IR, AST, SR and H/ W of each measuring point were extracted quantitatively ; secondly, variables is deal with dimensionality reduction by factor analysis to be summarized as factors; Finally, regression analysis of the factors and variables between UII respectively are conducted to examine the significant degree of these independent variables influencing the UII.
This will lead to the reduction of correlation degree of regression analysis between factor and UII.
Conclusions By actual measurement and heat island analysis of one typical residential quarter in mountain city during two seasons, a new data processing method is put forward——factor analysis
Online since: August 2011
Authors: Young Woo Park, Jae Hyun Yoo, Kyung Hyun Yoon, Eun Ju Yoo
When the two driving waveform, the W-shaped driving waveform seems to be effective in reducing the droplet volume, and achieves the reduction of volume by 30 percent.
It consists of one M-Jet connected to a fluid reservoir via a fluid inlet, a charge coupled device (CCD) camera, a strobe light emitting diode (LED) with a dedicated controller, a substrate on top of an automated XY stage, a Z-axis stage for distance adjust between nozzle and substrate, a data acquisition (DAQ) module connected to a PC with a control program.
When the two driving waveform, the W-shaped driving waveform seems to be effective in reducing the droplet volume, and achieves the reduction of volume by 30 percent.
The W-shaped driving waveform seems to be effective in reducing the droplet volume, and achieves the reduction of volume by 30 percent. 5.
It consists of one M-Jet connected to a fluid reservoir via a fluid inlet, a charge coupled device (CCD) camera, a strobe light emitting diode (LED) with a dedicated controller, a substrate on top of an automated XY stage, a Z-axis stage for distance adjust between nozzle and substrate, a data acquisition (DAQ) module connected to a PC with a control program.
When the two driving waveform, the W-shaped driving waveform seems to be effective in reducing the droplet volume, and achieves the reduction of volume by 30 percent.
The W-shaped driving waveform seems to be effective in reducing the droplet volume, and achieves the reduction of volume by 30 percent. 5.
Online since: August 2014
Authors: Maitri Kamonrattanapisut, Surangsee Dechjarern
The improvement in the reduction of thinning percentage was 22.35%.
Based on the data presented in Table 3, the main effect S/N response and plot were calculated.
The reduction in maximum thinning is 22.35% and the improvement in the reduction of minimum thickness is 12.33%, as shown in Table 7.
Based on the data presented in Table 3, the main effect S/N response and plot were calculated.
The reduction in maximum thinning is 22.35% and the improvement in the reduction of minimum thickness is 12.33%, as shown in Table 7.
Online since: August 2024
Authors: Gregor Pobegen, Magdalena Weger, Michel Bockstedte
The reduction of the threshold voltage is taken as an indicator for the amount
of released charges after each photon irradiation.
After each light exposure another transfer characteristic is measured to determine the reduction of trapped charges at the interface.
(III) In the data analysis we investigate the difference in the threshold voltage (defined as the gate voltage needed to reach a drain current of 5 pA) as a function of the photon energy.
When VG ≈0 V, the reduction of band bending at the interface shifts the trap levels above the Fermi level EF and by that enables trapped electrons to emit into the conduction band of 4H-SiC (see Fig. 1(b)).
After each light exposure another transfer characteristic is measured to determine the reduction of trapped charges at the interface.
(III) In the data analysis we investigate the difference in the threshold voltage (defined as the gate voltage needed to reach a drain current of 5 pA) as a function of the photon energy.
When VG ≈0 V, the reduction of band bending at the interface shifts the trap levels above the Fermi level EF and by that enables trapped electrons to emit into the conduction band of 4H-SiC (see Fig. 1(b)).
Online since: September 2013
Authors: Chuan Zhen Huang, Han Lian Liu, Jun Wang, Bin Zou, Guo Long Zhao, Hong Tao Zhu
Three kinds of in-situ growth TaC whiskers toughening Al2O3 matrix ceramic cutting tool materials were prepared by two steps, which were in-situ synthesis of TaC whiskers in Al2O3 matrix powder by carbothermal reduction process and hot pressing of the composites respectively.
The XRD peaks were identified by matching to the JCPDS-ICDD data cards.
It was seen from Fig. 2 that TaC was successfully synthesized in the Al2O3 matrix by the carbothermal reduction process: Ta2O5(s) + 7C(s) → 2TaC(s) + 5CO(g) (2) Except for TaC and Al2O3, no other phases were detected, indicating that a full conversion of reagents into products was achieved.
The TaC whiskers with a diameter of 0.1-0.5μm and an aspect ratio of 10-30 were in-situ synthesized in the Al2O3 matrix powder by the carbothermal reduction process.
The XRD peaks were identified by matching to the JCPDS-ICDD data cards.
It was seen from Fig. 2 that TaC was successfully synthesized in the Al2O3 matrix by the carbothermal reduction process: Ta2O5(s) + 7C(s) → 2TaC(s) + 5CO(g) (2) Except for TaC and Al2O3, no other phases were detected, indicating that a full conversion of reagents into products was achieved.
The TaC whiskers with a diameter of 0.1-0.5μm and an aspect ratio of 10-30 were in-situ synthesized in the Al2O3 matrix powder by the carbothermal reduction process.
Online since: February 2015
Authors: Stephan Thierry Dubas, Hathaichanok Tamiyakul, Warangkana Warisnoicharoen, Somboon Tanasupawat
In this study, the stable AgNPs capped with poly (4-styrenesulfonic acid-co-maleic acid) or PSSMA were successfully synthesized by using a chemical reduction method.
AgNPs (3.33 mM or 360 ppm Ag atom) were synthesized using a chemical reduction method.
From the results, it could be seen that PSSMA-AgNPs were more stable than PSSMA-free AgNPs in which the latter had lower particle surface charges and caused some aggregation as observed in TEM result (data not shown).
Guobiene, Analysis of silver nanoparticles produced by chemical reduction of silver salt solution, Mater.
AgNPs (3.33 mM or 360 ppm Ag atom) were synthesized using a chemical reduction method.
From the results, it could be seen that PSSMA-AgNPs were more stable than PSSMA-free AgNPs in which the latter had lower particle surface charges and caused some aggregation as observed in TEM result (data not shown).
Guobiene, Analysis of silver nanoparticles produced by chemical reduction of silver salt solution, Mater.