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Online since: September 2013
Authors: Xiao Hui Cao, Chen Hai Guo, Ye Miao Zhao, Qing Zhen Ma
Fig. 1 Boundary element model Fig. 2 Location of the measure points
FEM/BEM Data Transmission
The main forces acting on the body are forces on the main bearing, unbalance inertia force, piston side stroke, explosion pressure of the cylinder head, etc.
This is called FEM/BEM data transmission.
In this paper, programming language is used to FEM/BEM data transmission.
The destination file (*.RST) calculated by FEM software is read by C programming language to take the data, then change the data into the one that can be calculated by BEM software.
Finally, put the data into the BEM calculation model to calculate.
This is called FEM/BEM data transmission.
In this paper, programming language is used to FEM/BEM data transmission.
The destination file (*.RST) calculated by FEM software is read by C programming language to take the data, then change the data into the one that can be calculated by BEM software.
Finally, put the data into the BEM calculation model to calculate.
Online since: June 2010
Authors: Jae Young Jung, Hyun Na Bae, Seon Hyo Kim, Sung Koo Jo, Go Gi Lee
In this work, a computational
modeling method to describe the thermal behavior in the TiCl4 reduction reactor was investigated
and validated with the measured temperature distribution in a 500kg titanium sponge-capacity pilotscale
reactor in terms of various reduction ratios.
Each Mg level with progression of reduction process in Fig. 2 (b) ~ (d) indicates 250mm, 450mm, 650mm.
(a) (b) (c) (d) Fig. 2 Schematic diagram of geometry applied in computational modeling: (a) initial (b) 25 pct reduction (c) 50 pct reduction (d) 75 pct reduction Results and Discussion Temperature distribution in the reduction process is showed in Fig. 3.
During the early stage in the reduction process, the bottom of the reactor is the biggest part for heat elimination.
Acknowledgements The authors thank to RIST for providing experimental data and support form POSCO, South Korea (Grant No. 4.0004073.01) is gratefully acknowledged.
Each Mg level with progression of reduction process in Fig. 2 (b) ~ (d) indicates 250mm, 450mm, 650mm.
(a) (b) (c) (d) Fig. 2 Schematic diagram of geometry applied in computational modeling: (a) initial (b) 25 pct reduction (c) 50 pct reduction (d) 75 pct reduction Results and Discussion Temperature distribution in the reduction process is showed in Fig. 3.
During the early stage in the reduction process, the bottom of the reactor is the biggest part for heat elimination.
Acknowledgements The authors thank to RIST for providing experimental data and support form POSCO, South Korea (Grant No. 4.0004073.01) is gratefully acknowledged.
Online since: March 2011
Authors: Ya Wen Liu, Ke Bin Jiang, Feng Zheng, Yong Ding
The results of these tests indicate that the strength and hardness of HAZ of this material exhibit a W-shaped reduction.
Based on the analytical deduction and experimental data fitting, the theoretical strength model for HAZ of aluminum alloy is proposed.
The change law of tensile strength in HAZ can be gained by data processing and analyzing as long as the tensile strength of specimens from different distance to weld seam center is measured.
For convenient application, the theoretical model for strength distribution of the HAZ is to fit the experimental data into the curve as illustrated in Fig.10.
For the butt welding specimens at 30-day ageing hardening with TIG welding are damaged, the curve fitting adopts 7-day specimens data which may lead the width of reduction zone be slightly larger.
Based on the analytical deduction and experimental data fitting, the theoretical strength model for HAZ of aluminum alloy is proposed.
The change law of tensile strength in HAZ can be gained by data processing and analyzing as long as the tensile strength of specimens from different distance to weld seam center is measured.
For convenient application, the theoretical model for strength distribution of the HAZ is to fit the experimental data into the curve as illustrated in Fig.10.
For the butt welding specimens at 30-day ageing hardening with TIG welding are damaged, the curve fitting adopts 7-day specimens data which may lead the width of reduction zone be slightly larger.
Online since: December 2009
Authors: Hidenobu Shiroishi, Morihiro Saito, Jun Kuwano, Takayuki Konishi, Hideki Kawai
Electrocatalytic Activities of Trirutiles
Based on MTaO6 (M=Co, �i, Mg) for Oxygen Reduction Reaction
Takayuki KONISHI
1, Hideki KAWAI
1, Morihiro SAITO
1, Jun KUWANO
1,
and Hidenobu SHIROISHI
2
1.Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science,
1 12-1 Ichigayafunagawara, Shinjuku, Tokyo 162-0826, JAPAN
2.Department of Chemical Science and Engineering, Tokyo National College of Technology,
2 1220-2, Kunigida, Hachioji city, Tokyo 193-0997, JAPAN
Keywords: electrocatalyst, trirutile, oxygen, MTa2O6, RRDE, ORR
ABSTRACT
The trirutile oxides MTa2O6 (M=Co,Ni,Mg) [MTs] and the substitution products M1-xNxTa2-yLyO6
(N=Mn, L=Sn,Ti,Zr) [M1-xNxTa2-yLy] were prepared by a conventional solid-state reaction.
The oxygen reduction reaction (ORR) activities were evaluated with the onset potentials (Eon) of the ORR currents, the disk current densities (iD) and the efficiencies (Eff4) of 4-electron reduction, measured by a rotating ring-disk electrode (RRDE) technique.
Platinum has been continuously and commonly used as the cathode catalyst for their practical use because of the excellent activity toward oxygen reduction and the long-term stability.
The lattice parameters were determined through the XRD pattern-processing program JADE 5.0 (Materials Data Inc.).
The efficiency (Eff4) of 4-electron reduction of oxygen can be calculated by the following equation: Eff4 = 100 × (iD − iR / �) / (iD + iR / �), where iD and iR are disk and ring currents, respectively, � (=0.372) is the collection efficiency estimated from the geometrical areas of the ring and disk electrodes.
The oxygen reduction reaction (ORR) activities were evaluated with the onset potentials (Eon) of the ORR currents, the disk current densities (iD) and the efficiencies (Eff4) of 4-electron reduction, measured by a rotating ring-disk electrode (RRDE) technique.
Platinum has been continuously and commonly used as the cathode catalyst for their practical use because of the excellent activity toward oxygen reduction and the long-term stability.
The lattice parameters were determined through the XRD pattern-processing program JADE 5.0 (Materials Data Inc.).
The efficiency (Eff4) of 4-electron reduction of oxygen can be calculated by the following equation: Eff4 = 100 × (iD − iR / �) / (iD + iR / �), where iD and iR are disk and ring currents, respectively, � (=0.372) is the collection efficiency estimated from the geometrical areas of the ring and disk electrodes.
Online since: October 2011
Authors: Qi Li
Organization of the Text
1 Data Source and Research Method
1.1 Data source
Based on data from China energy statistics Yearbook and Anhui Statistical Yearbook, we collect the relevant data from 1990 to 2008 of resources consumption and environmental pollution in detail, and we select four indices, which include energy consumption, water consumption, SO2 discharge and COD discharge from ten thousand yuan output value, to reflect the influence of economic development on resource-environment system.
In figure 2, we can find that water consumption per ten thousand yuan is dwindling, from 632.84 m3 in 1998 to 264.81 m3 in 2008, showing an decrease by half and average annual reduction rates of 6.73 percents.
Figure 3 reflects that SO2 emission per ten thousand yuan has been declined steadily, from 67.59 kg in 1990 to 5.07 kg in 2008, showing an decrease of 91.56 percents and average annual reduction rates of 12.8 percents.
SO2 Emissions in Shandong Province and Its Reduction Potential Based on the Environmental Learning Curve[J].
A Study on the Environment Learning Curve and Energy Saving Resources and Emission Reduction Potential of Power Industry in China[J].
In figure 2, we can find that water consumption per ten thousand yuan is dwindling, from 632.84 m3 in 1998 to 264.81 m3 in 2008, showing an decrease by half and average annual reduction rates of 6.73 percents.
Figure 3 reflects that SO2 emission per ten thousand yuan has been declined steadily, from 67.59 kg in 1990 to 5.07 kg in 2008, showing an decrease of 91.56 percents and average annual reduction rates of 12.8 percents.
SO2 Emissions in Shandong Province and Its Reduction Potential Based on the Environmental Learning Curve[J].
A Study on the Environment Learning Curve and Energy Saving Resources and Emission Reduction Potential of Power Industry in China[J].
Online since: August 2013
Authors: Chun Fu Shao, Li Li Zhu
Fig. 2 Phase diagram
Traffic Flow Data
Evening peak-hour of the intersection is 17:30-18:30.
Table 1 shows the traffic flow data at 15min intervals.
Table 1 Peak-hour traffic flow data (pcu) Import Time North import South import East import West import Left Straight Right Left Right Left Straight Right Straight 17:30-17:45 57 54 136 0 121 1 58 2 183 17:45-18:00 40 44 118 0 106 3 58 0 176 18:00-18:15 34 51 100 1 105 0 44 0 186 18:15-18:30 50 47 106 0 111 1 55 1 171 Traffic Safety Problems and Risks The green island with dense tall trees makes a blind area in sight-triangle, which has a bad impact on driver’s judgment and reaction.
Table 2 lists part of the crash reduction factor statistics.
Table 2 Crash reduction factors (CRF) No.
Table 1 shows the traffic flow data at 15min intervals.
Table 1 Peak-hour traffic flow data (pcu) Import Time North import South import East import West import Left Straight Right Left Right Left Straight Right Straight 17:30-17:45 57 54 136 0 121 1 58 2 183 17:45-18:00 40 44 118 0 106 3 58 0 176 18:00-18:15 34 51 100 1 105 0 44 0 186 18:15-18:30 50 47 106 0 111 1 55 1 171 Traffic Safety Problems and Risks The green island with dense tall trees makes a blind area in sight-triangle, which has a bad impact on driver’s judgment and reaction.
Table 2 lists part of the crash reduction factor statistics.
Table 2 Crash reduction factors (CRF) No.
Online since: May 2014
Authors: Yue Qi Zhong, Yi Jun Zhang, Zhen Wang, Ji Ji, Yu Xiao Ji
Some experiments [5] demonstrated that a model can be generated by inputting the data of sizing parameters.
This method combined manual measurement with 3D scan data.
Flow chart of the steps for data processing Data processing Data processing is a process to convert the point cloud into smooth facet by surface reconstruction.
In addition, a big hole should be cut into several small ones to avoid inaccuracy of the data.
Size-specific Analysis of Body Scan Data to Improve Apparel Fit.
This method combined manual measurement with 3D scan data.
Flow chart of the steps for data processing Data processing Data processing is a process to convert the point cloud into smooth facet by surface reconstruction.
In addition, a big hole should be cut into several small ones to avoid inaccuracy of the data.
Size-specific Analysis of Body Scan Data to Improve Apparel Fit.
Online since: January 2014
Authors: Shu Wei Wei, Yan Li Yang, Zhao Wu Li
Design data of low carbon residence form
Based on the above mentioned design structure, taking the systems as LEED systems by U.S.
Data of site form design.
Design data of site form.
Design data of landscape shape.
Design data of architecture forms.
Data of site form design.
Design data of site form.
Design data of landscape shape.
Design data of architecture forms.
Online since: October 2011
Authors: Ya Zhen Li, Jing Guan, Jie Zhang, Li Qun Huang
However, it reduced PAPR, increased of the data rate.
At the sender, the system employed the extra bits to protect the SI to recover data correctly.
It increased the channel resources and decreased the data rate.
Therefore,, where is the input data block with N independent modulated data symbols.
Since data symbols and comb-type pilot symbols, multiplying by the same phase factors.
At the sender, the system employed the extra bits to protect the SI to recover data correctly.
It increased the channel resources and decreased the data rate.
Therefore,, where is the input data block with N independent modulated data symbols.
Since data symbols and comb-type pilot symbols, multiplying by the same phase factors.
Online since: October 2011
Authors: Hai Tao Xu, Shao Yan Zhong, Mao Fa Jiang
Thermodynamic analysis of the serpentine was reduction by carbothermal Reduction method
Serpentine begin dehydration in 600oC, and decomposition to form loose union of magnesium oxide and silica residues under the effect of calcium fluoride.
The main reaction happen reduction reactions with carbonaceous material are as follows: Mg6[Si4O10](OH)8 + 18C = 6Mg(g) + 4SiC(s) + 4H2O(g) + 14CO(g) (1) According to chemical reactive (1) and relevant thermo-dynamic data to calculate, we can draw the theory vacuum degree of serpentine carbothermal reduction form vapor magnesium as show in Fig1.
Fig. 2 XRD curves of metallic magnesium Fig. 3 XRD curves of slag was reduction by serpentine carbothermal reduction method Table 3 is composition of slag after serpentine carbothermal reduction.
Thermodynamic analysis of magnesium oxide was reduction by vacuum carbothermal reduction method and experiment [J]. non-ferrous metals, 2005,(2): 56-59. 3 Neudorf D.
The experimental research on calcined white vacuum carbothermal reduction[J].
The main reaction happen reduction reactions with carbonaceous material are as follows: Mg6[Si4O10](OH)8 + 18C = 6Mg(g) + 4SiC(s) + 4H2O(g) + 14CO(g) (1) According to chemical reactive (1) and relevant thermo-dynamic data to calculate, we can draw the theory vacuum degree of serpentine carbothermal reduction form vapor magnesium as show in Fig1.
Fig. 2 XRD curves of metallic magnesium Fig. 3 XRD curves of slag was reduction by serpentine carbothermal reduction method Table 3 is composition of slag after serpentine carbothermal reduction.
Thermodynamic analysis of magnesium oxide was reduction by vacuum carbothermal reduction method and experiment [J]. non-ferrous metals, 2005,(2): 56-59. 3 Neudorf D.
The experimental research on calcined white vacuum carbothermal reduction[J].