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Online since: May 2011
Authors: Tie Bang Sun
Green construction technologies includes the reduction of noise and pollution, clean transportation, conforming to site environment, arranging construction activities in accordance with local climate, saving the consumption of water, electric and material, improve the construction quality, and so on.
Construction waste management takes advantage of opportunities for source reduction, materials reuse, and waste recycling.
We have some difficulties in the establishment of the cost model because of the absence of historical data and methodology.
Construction waste management takes advantage of opportunities for source reduction, materials reuse, and waste recycling.
We have some difficulties in the establishment of the cost model because of the absence of historical data and methodology.
Online since: December 2010
Authors: Tao Suo, Kui Xie, Feng Zhao, Yu Long Li
For face-centered cubic (FCC) metals the SRS usually increases with reduction in grain size while the body-centered cubic (BCC) metals show the opposite trend [1].
Thus, according to the above-described experimental data, we can draw a conclusion that the temperature sensitivity of copper will increase with reduction in grain size.
Thus, according to the above-described experimental data, we can draw a conclusion that the temperature sensitivity of copper will increase with reduction in grain size.
Online since: September 2014
Authors: Sergey Nikolaevich Grigoriev, Marina Volosova, Yury Andreevich Melnik, Natalia Cherkasova, Alina Gurkina
To ensure the accuracy of the collection of experimental data the process of face grinding was also implemented in the framework of the scheme with grinding wheel constantly pressing on ceramic insert processed surface.
Comparative studies of quality of the ceramic insert surface layer after the planetary grinding and the conventional face grinding revealed that with the help of planetary grinding significant reduction of residual stresses in the surface layer and reduction of processed surface roughness can be reached. 3.
Comparative studies of quality of the ceramic insert surface layer after the planetary grinding and the conventional face grinding revealed that with the help of planetary grinding significant reduction of residual stresses in the surface layer and reduction of processed surface roughness can be reached. 3.
Online since: March 2012
Authors: Bin Nong, Dong Mei Huang, Yao Li, Yan Ping Lei
From the data shown in table 1, we can see that the content of metal ions Mg2+, Mn2+, Fe3+, Zn2+, Cu2+ in unbleached pulps are reduced in varying degrees after sulfuric acid pretreatment, the removal efficiency is great.
Table 2 Effects of pretreatment on the quality of eucalyptus pulp pretreatment conditions brightness, %ISO increasing whiteness, %ISO hardness (K value) lowing rate of hardness, % viscosity, ml/g reduction rate of viscosity, % Un-pretreatment 42.02 - 9.89 - 844.3 - After A1 pretreatment 47.01 4.99 8.94 9.61 810.1 4.06 After A2 pretreatment 46.28 4.26 9.15 7.48 819.2 2.98 After A3 pretreatment 45.96 3.94 9.25 6.47 824.5 2.35 Notes: A1 1.0%H2SO4,A21.5%H2SO4;A32.0%H2SO4。
Table 3 The effects of acid pretreatment on photocatalysis bleaching pretreatment conditions brightness, %ISO increasing whiteness, %ISO hardness (K value) lowing rate of hardness, % viscosity, ml/g reduction rate of viscosity, % Un-pretreatment 84.69 42.67 3.16 68.05 670.9 20.52 After A1 pretreatment 81.13 39.11 3.69 62.69 570.5 32.43 After A2 pretreatment 82.34 40.32 2.95 70.17 579.9 31.31 After A3 pretreatment 82.00 39.98 3.10 68.66 570.0 32.49 Notes: A1 1.0%H2SO4,A21.5%H2SO4;A32.0%H2SO4。
Table 2 Effects of pretreatment on the quality of eucalyptus pulp pretreatment conditions brightness, %ISO increasing whiteness, %ISO hardness (K value) lowing rate of hardness, % viscosity, ml/g reduction rate of viscosity, % Un-pretreatment 42.02 - 9.89 - 844.3 - After A1 pretreatment 47.01 4.99 8.94 9.61 810.1 4.06 After A2 pretreatment 46.28 4.26 9.15 7.48 819.2 2.98 After A3 pretreatment 45.96 3.94 9.25 6.47 824.5 2.35 Notes: A1 1.0%H2SO4,A21.5%H2SO4;A32.0%H2SO4。
Table 3 The effects of acid pretreatment on photocatalysis bleaching pretreatment conditions brightness, %ISO increasing whiteness, %ISO hardness (K value) lowing rate of hardness, % viscosity, ml/g reduction rate of viscosity, % Un-pretreatment 84.69 42.67 3.16 68.05 670.9 20.52 After A1 pretreatment 81.13 39.11 3.69 62.69 570.5 32.43 After A2 pretreatment 82.34 40.32 2.95 70.17 579.9 31.31 After A3 pretreatment 82.00 39.98 3.10 68.66 570.0 32.49 Notes: A1 1.0%H2SO4,A21.5%H2SO4;A32.0%H2SO4。
Online since: September 2013
Authors: Thanarak Srisurat, Karn Pana-Suppamassadu, Sabaithip Tungkamani, Monrudee Phongaksorn, Thana Sornchamni, Phavanee Narataruksa
Introduction
According to the increasing demand for hydrogen in the petrochemical and chemical industries as a feedstock for a variety of processes such as methanol synthesis, Fisher–Tropsch synthesis, and as a reduction gas for the direct reduction of metal oxides, methane steam reforming (MSR) has been received many attentions worldwide especially for the reason of being the most widely adopted method to produce hydrogen [1].
The entire system was monitored and controlled in a fully-automated manner by Labview automation system (National Instrument, NI) equipped with the data acquisition hardware.
The entire system was monitored and controlled in a fully-automated manner by Labview automation system (National Instrument, NI) equipped with the data acquisition hardware.
Online since: July 2007
Authors: Gerhard Hirt, E. Maidagan, Markus Bambach, Joachim Zettler, P.P. Rodríguez
This will be achieved through
reduction of direct and indirect production costs and reduction of time to market, allowing for
innovative designs.
Set-up and first simulation results for the SCULPTOR process For the material, AA1050 sheets were assumed, and standard material data derived from tensile tests were taken to model the material behavior.
Set-up and first simulation results for the SCULPTOR process For the material, AA1050 sheets were assumed, and standard material data derived from tensile tests were taken to model the material behavior.
Online since: September 2014
Authors: Hao Li
Fig. 1 Pushover curve convert to capability curve
With the resistance curve of the bilinear equivalent SDOF system, the seismic displacement response of the structure is:
(2)
In which, Ry is the yield strength reduction factor; Tn is the elastic period of equivalent SDOF system; A is the maximum acceleration response of the SDOF system based on elastic response spectrum; μ is the ductility coefficient, which can be determined by simplified function of Ry - μ - Tn relationship.
Result of pushover analysis: ratio of yield strength to structure weight is 0.12; yield displacement is 260mm; ratio of ultimate strength to structure weight is 0.15; ultimate displacement is 480mm; stiffness hardening rate is 1%; equivalent period Tn is 2.98s; strength reduction factor Ry is 1.65 corresponding to the horizontal seismic coefficient of 0.1984.
In addition, in case of insufficient data, proposed reliability index can mix other type of uncertainty with randomness, which has certain significance for the engineering application of reliability theory.
Result of pushover analysis: ratio of yield strength to structure weight is 0.12; yield displacement is 260mm; ratio of ultimate strength to structure weight is 0.15; ultimate displacement is 480mm; stiffness hardening rate is 1%; equivalent period Tn is 2.98s; strength reduction factor Ry is 1.65 corresponding to the horizontal seismic coefficient of 0.1984.
In addition, in case of insufficient data, proposed reliability index can mix other type of uncertainty with randomness, which has certain significance for the engineering application of reliability theory.
Online since: December 2012
Authors: Shu Zhong Wang, Yu Zhen Wang, Guang Xin Yu, Hang Yu, Yan Meng Gong, Yang Guo, Dong Hai Xu
Data interpretation.
The dielectric constant of supercritical water increased with the increase of density [8], resulting in a reduction of solubility of organics in supercritical water.
To prove the accuracy of simulation, we check the steam enthalpy-entropy diagram since the pressure reduction process is an isenthalpic process.
The dielectric constant of supercritical water increased with the increase of density [8], resulting in a reduction of solubility of organics in supercritical water.
To prove the accuracy of simulation, we check the steam enthalpy-entropy diagram since the pressure reduction process is an isenthalpic process.
Online since: February 2015
Authors: Yang Wang, Jian Bing Liu, Xue Dong Zhang
., Ltd.
0.55
3.70
15
4.64
Data Time:2013-12-31
(2) The administrative jurisdiction of the energy enterprise group changes inversely with the risk each level confronts, which leads to the uncontrollable projects and value losses.
The internal audit of the energy enterprise group will also enter the emerging fields of social responsibility audit and energy-saving and emission-reduction audit
Internal audit department should strengthen the protection of social public interests, enhance the overall image of the enterprise through releasing social responsibility reports and carrying out audit activities such as energy saving and emission reduction.
The internal audit of the energy enterprise group will also enter the emerging fields of social responsibility audit and energy-saving and emission-reduction audit
Internal audit department should strengthen the protection of social public interests, enhance the overall image of the enterprise through releasing social responsibility reports and carrying out audit activities such as energy saving and emission reduction.
Online since: June 2014
Authors: Dang Tyu, Vladimir Korovkin
Foundation for the site, located in the marginal zone of the base, is a reduction of the normative values of the bed with a reallocation of its value in the elastic areas.
Reduction of the bending moment in the proposed method compared with the program " PLaxcis " due to the redistribution of pressure in the wall from its trough.
Data on authors Civil Engineering Institute, St.
Reduction of the bending moment in the proposed method compared with the program " PLaxcis " due to the redistribution of pressure in the wall from its trough.
Data on authors Civil Engineering Institute, St.