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Online since: September 2013
Authors: Xiao Chun Wang, Jin Shi, You Jian Jia, Feng Shi
Four distinct classes of pure metal catalysts have been identified for CO2 reduction[10].
The standard potentials for CO2 reduction can be calculated from the thermodynamic data, and is shown as follows[14]: Nevertheless, CO2 reduction does not take place easily, and the actual electrolysis potentials for CO2 reduction are much more negative in most cases than the standard potentials.
They used silver cathode as the catalyst for the reduction of CO2 to CO.
Anodic half-reaction provides the protons for CO2 reduction at the cathode.
Armstrong, Reduction Potential of the CO2·- Radical Anion in Aqueous Solutions, J.
The standard potentials for CO2 reduction can be calculated from the thermodynamic data, and is shown as follows[14]: Nevertheless, CO2 reduction does not take place easily, and the actual electrolysis potentials for CO2 reduction are much more negative in most cases than the standard potentials.
They used silver cathode as the catalyst for the reduction of CO2 to CO.
Anodic half-reaction provides the protons for CO2 reduction at the cathode.
Armstrong, Reduction Potential of the CO2·- Radical Anion in Aqueous Solutions, J.
Online since: November 2011
Authors: Jie Qin, Xun Xue, Jun Deng
Then CO2 emission is calculated in the RHF—EAF flow for treating V-Ti magnetite according to data from the pilot plant in Pangang Group.
Based on the data from design and real production the text calculated the quantum of CO2 emissions.
According to these data above we can calculate the ratio of blast furnace gas and coke oven gas and the result is that among the gas mixture blast furnace gas accounts for 60% ,of course the rest is coke oven gas.
The carbon content of metallized pellets is about 5% and the carbon content in the hot metal is around 2%.According to the mass balance calculation we can get the data of CO2 emissions to produce one ton hot metal.
The calculation is based on the energy consumption which is different from the calculation of the RHF-EAF process and all of the data come from the real production.
Based on the data from design and real production the text calculated the quantum of CO2 emissions.
According to these data above we can calculate the ratio of blast furnace gas and coke oven gas and the result is that among the gas mixture blast furnace gas accounts for 60% ,of course the rest is coke oven gas.
The carbon content of metallized pellets is about 5% and the carbon content in the hot metal is around 2%.According to the mass balance calculation we can get the data of CO2 emissions to produce one ton hot metal.
The calculation is based on the energy consumption which is different from the calculation of the RHF-EAF process and all of the data come from the real production.
Online since: October 2011
Authors: Qi Qi, Xiao Rong Cui, Zhan Jun Li
Present state of dust reduction in blasting demolition
According to related data from scientific research, effective measures against blasting dust are still not found at present.
The effect of dust reduction is good
The effect of dust reduction is satisfactory
The effect of dust reduction is very good.
Obviously, dust reduction by foaming is better than dust reduction by watering.
The effect of dust reduction is good
The effect of dust reduction is satisfactory
The effect of dust reduction is very good.
Obviously, dust reduction by foaming is better than dust reduction by watering.
Online since: January 2011
Authors: He Wang, Xue Li, Qi Ming Ju
Utilize rough sets for reduction of fuzzy control rules and fuzzy control system for real time data processing of drilling capacity, drilling moment and spindle motor current under MATLAB platform.
Meanwhile, rough sets rule can effectively analyze and process large amount of empirical data and discover hidden knowledge as well as reveal the potential law.
Its main idea is to remove redundant data from the original datasheet by reduction method while keeping the classification and decision making capability of the original decision table unchanged and obtain a reduction from which decision law can be extracted.
According to the above data, take another 40 drill bits, divided into four groups with 10 drill bits in each group.
Therefore, utilizing rough sets theory to conduct reduction for fuzzy controller from data sample can decrease fuzzy controller laws significantly and simplify fuzzy controller structure.
Meanwhile, rough sets rule can effectively analyze and process large amount of empirical data and discover hidden knowledge as well as reveal the potential law.
Its main idea is to remove redundant data from the original datasheet by reduction method while keeping the classification and decision making capability of the original decision table unchanged and obtain a reduction from which decision law can be extracted.
According to the above data, take another 40 drill bits, divided into four groups with 10 drill bits in each group.
Therefore, utilizing rough sets theory to conduct reduction for fuzzy controller from data sample can decrease fuzzy controller laws significantly and simplify fuzzy controller structure.
Online since: July 2007
Authors: Daniel Kupka, Olli H. Tuovinen, Mark Dopson
Sulfur Oxidation and Coupled Iron Reduction at Low Temperatures
Daniel Kupka1,a, Mark Dopson
2,b
and Olli H.
Tuovinen3,c 1 Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 043 53 Košice, Slovakia 2 Department of Molecular Biology, Umeå University, SE-901 87 Umeå, Sweden 3 Department of Microbiology, Ohio State University, 484 West 12th Avenue, Columbus, Ohio 432104 a dankup@saske.sk, bmark.dopson@molbiol.umu.se, c tuovinen.1@osu.edu Keywords: Acidithiobacillus ferrooxidans, psychrotrophic, iron, sulfur, oxidation, reduction jarosite, schwertmannite.
Upon sulfur oxidation, sulfate formation was associated with a decrease in the pH, and the concentration of Fe 3+ decreased because of its concurrent reduction to Fe 2+ in elemental sulfur media.
The data indicated that the Fe 3+/Fe 2+ redox pair could compete with the O2/H2O couple as an alternative acceptor of electrons from the bacterial sulfur oxidation.
Tuovinen3,c 1 Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 043 53 Košice, Slovakia 2 Department of Molecular Biology, Umeå University, SE-901 87 Umeå, Sweden 3 Department of Microbiology, Ohio State University, 484 West 12th Avenue, Columbus, Ohio 432104 a dankup@saske.sk, bmark.dopson@molbiol.umu.se, c tuovinen.1@osu.edu Keywords: Acidithiobacillus ferrooxidans, psychrotrophic, iron, sulfur, oxidation, reduction jarosite, schwertmannite.
Upon sulfur oxidation, sulfate formation was associated with a decrease in the pH, and the concentration of Fe 3+ decreased because of its concurrent reduction to Fe 2+ in elemental sulfur media.
The data indicated that the Fe 3+/Fe 2+ redox pair could compete with the O2/H2O couple as an alternative acceptor of electrons from the bacterial sulfur oxidation.
Online since: February 2014
Authors: Wen Yan Chai, Xiu Rong Li, Ya Li Liu
Compared with some other methods applied in data parallelism that can parallelize reduction operations on a force-array, our method achieves high performance especially when the simulation system is characterized by irregular geometry or by inhomogeneous atom densities.
Newton’s third law brings loop-carried data dependences in the force-computing loop.
Some strategies can be used to remove possible data dependence on force-array of MD simulations, which can be applied in data parallelism [6-7].
But too many blocks incur worse data locality.
The kind of data structure simplifies the communication between producer and consumer.
Newton’s third law brings loop-carried data dependences in the force-computing loop.
Some strategies can be used to remove possible data dependence on force-array of MD simulations, which can be applied in data parallelism [6-7].
But too many blocks incur worse data locality.
The kind of data structure simplifies the communication between producer and consumer.
Online since: September 2007
Authors: Han Seung Lee, Jae Deog Kim, Jae Ho Jang, Jing Yeong Seong, In Seok Kang
Also, a data
logger and computer were used to obtain data.
in internal forces after the final fracture of the reinforced specimen at the maximum strength as the net reinforcement effect caused by transparent composite panels and that was applied to produce partial reduction coefficients.
The strength lowering of transparent composite panels can be reflected as a partial reduction coefficient in reinforcement designs using transparent composite panels.
Thus, it is regarded that if the partial reduction coefficient is applied by 0.8 in a reinforcement design, a safe design can be established.
(2) It was regarded that if the partial reduction coefficient was applied by 0.8, which was determined based on the results of the bending reinforcement performance evaluation, in a reinforcement design, a safe design can be established.
in internal forces after the final fracture of the reinforced specimen at the maximum strength as the net reinforcement effect caused by transparent composite panels and that was applied to produce partial reduction coefficients.
The strength lowering of transparent composite panels can be reflected as a partial reduction coefficient in reinforcement designs using transparent composite panels.
Thus, it is regarded that if the partial reduction coefficient is applied by 0.8 in a reinforcement design, a safe design can be established.
(2) It was regarded that if the partial reduction coefficient was applied by 0.8, which was determined based on the results of the bending reinforcement performance evaluation, in a reinforcement design, a safe design can be established.
Online since: July 2013
Authors: Eric Harvey, Peter Avitabile, Justin Ruddock
Complicated reponse of structures from limited sets of data can be expanded to full field data using a unique expansion technique first proposed by Chipman[3] and extended by Pingle [4] to obtain not only full field displacement information but also extended to provide full field strain data.
Expansion of real-time operating data is needed for the structure assessment.
· Measured data at the test points is obtained (either operating data or prescribed input)
· The measured data at ADOF is expanded to NDOF using [Tu]
Only limited cases have been studied thus far but measured data is currently being evaulated and will be the subject of future work.
Expansion of real-time operating data is needed for the structure assessment.
· Measured data at the test points is obtained (either operating data or prescribed input)
· The measured data at ADOF is expanded to NDOF using [Tu]
Only limited cases have been studied thus far but measured data is currently being evaulated and will be the subject of future work.
Online since: January 2012
Authors: Ru Zhang, Ting Ai, Li Ren, Wen Xi Fu
The material parameters σci and mb in the HB criterion are reduced directly in [3], and the MC parameters corresponding to the line tangent to the HB curve are reduced by the traditional MC strength reduction method [4].As for the HB criterion, the relationship between the HB and MC strength reduction factors are developed [5].
Fu [10] also derived the relationship between the material strength reduction factor incorporated in the HB yield function and the shear strength reduction factor in the p-q plane and exactly implement the non-linear shear strength reduction on the FLAC3D.
To verify our proposed reduction method, the FEM results were compared with the results of limit equilibrium methods: the Gle/Morgenstern-price method, the simplified Bishop method and the corrected Janbu method.
By analyzing the data in Table 3, influences of dilatancy angles on the factor of safety can be approximately described as a linear function, see Eq. 19
Jia: The stability of homogeneous slopes based on strength reduction, MEng thesis (Chongqing Univ., Chongqing 2007)(in Chinese) [13] L.Y.
Fu [10] also derived the relationship between the material strength reduction factor incorporated in the HB yield function and the shear strength reduction factor in the p-q plane and exactly implement the non-linear shear strength reduction on the FLAC3D.
To verify our proposed reduction method, the FEM results were compared with the results of limit equilibrium methods: the Gle/Morgenstern-price method, the simplified Bishop method and the corrected Janbu method.
By analyzing the data in Table 3, influences of dilatancy angles on the factor of safety can be approximately described as a linear function, see Eq. 19
Jia: The stability of homogeneous slopes based on strength reduction, MEng thesis (Chongqing Univ., Chongqing 2007)(in Chinese) [13] L.Y.
Online since: January 2011
Authors: Jun Jie Yang, Xiao Li Liu
Introduction of Shear Strength Reduction Technique
The shear strength reduction technique (SSRT) is an effective way to compute the factor of safety (FOS) for slopes by numerical method.
This method has been referred to as the ‘shear strength reduction technique’ [5].
Increase the shear strength reduction factor Ftrial gradually with 0.01 increments.
Table 2 Data for stability analysis of Xietan landslide in natural state Ftrial Horizontal displacement of KP [cm] Incremental percent of the horizontal displacement [%] Difference of the incremental percent [%] 1.10 0.186 - - 1.11 0.328 76 - 1.12 0.499 52 -24 1.13 0.722 45 -7 1.14 0.984 36 -9 1.15 1.348 37 1 1.16 1.815 35 -2 1.17 2.418 33 -2 1.18 3.457 43 10 Stability Analysis of the Landslide in Long-term Reservoir Water Level Conditions.
Table 3 has indicated the data for landslide stability analysis in long-term water level conditions.
This method has been referred to as the ‘shear strength reduction technique’ [5].
Increase the shear strength reduction factor Ftrial gradually with 0.01 increments.
Table 2 Data for stability analysis of Xietan landslide in natural state Ftrial Horizontal displacement of KP [cm] Incremental percent of the horizontal displacement [%] Difference of the incremental percent [%] 1.10 0.186 - - 1.11 0.328 76 - 1.12 0.499 52 -24 1.13 0.722 45 -7 1.14 0.984 36 -9 1.15 1.348 37 1 1.16 1.815 35 -2 1.17 2.418 33 -2 1.18 3.457 43 10 Stability Analysis of the Landslide in Long-term Reservoir Water Level Conditions.
Table 3 has indicated the data for landslide stability analysis in long-term water level conditions.