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Online since: February 2022
Authors: Dong Won Jung, Krishna Singh Bhandari, Mohanraj Murugesan, Wen Ning Chen, Si Jia Li, Jinsik Moon
A comparison of tested geometries displays that reduction in thickness tends to be uniform in the wall region and small fluctuation noticed near the tool retraction location.
In terms of geometry dimensions and thickness reduction.
Likewise, computer simulation data was investigated, as shown in the figure a, CNC code is run on 6060C milling machine for the Aluminum alloys (AA3003).
After that, computer simulation data is compared throughout the paper.
Influence of tool path on main strains, thickness reduction an forces in single point incremental forming process.
In terms of geometry dimensions and thickness reduction.
Likewise, computer simulation data was investigated, as shown in the figure a, CNC code is run on 6060C milling machine for the Aluminum alloys (AA3003).
After that, computer simulation data is compared throughout the paper.
Influence of tool path on main strains, thickness reduction an forces in single point incremental forming process.
Online since: June 2017
Authors: Yu Liu, Su Ping Cui, Yan Qiong Sun
Data Source and the Process
The data of light aggregate concrete blocks production were collected through surveys from some typical enterprises in China.
The data of energy consumption and material inputs was derived from questionnaire survey.
Since the data of NOx emissions doesn’t only consist of N2O but also NO.
Sensitive Discussion In the research, it is the complex data that reduces reliability of results.
Therefore, the sensitive evaluation of the quality of the data helps to have a good grasp of the data source and identify the driving factors.
The data of energy consumption and material inputs was derived from questionnaire survey.
Since the data of NOx emissions doesn’t only consist of N2O but also NO.
Sensitive Discussion In the research, it is the complex data that reduces reliability of results.
Therefore, the sensitive evaluation of the quality of the data helps to have a good grasp of the data source and identify the driving factors.
Online since: May 2016
Authors: Li Bo Guo, Li Hui Sun, Feng Hua Luo, Jiao Du, Zeng Lin Liu, Guo Ping Li
(3) Reduction temperature.
Normally, the subsequent reduction temperature of atomized powder is 970 ℃.
Data show that the total oxygen content of ABC100.30 of Höganäs has reached 0.05 % or less.
The nature of reduction is the following equations: H2+O→H2O, H2O+C→H2+CO.
In addition, reduction also helps to reduce the number of crystal grains.
Normally, the subsequent reduction temperature of atomized powder is 970 ℃.
Data show that the total oxygen content of ABC100.30 of Höganäs has reached 0.05 % or less.
The nature of reduction is the following equations: H2+O→H2O, H2O+C→H2+CO.
In addition, reduction also helps to reduce the number of crystal grains.
Online since: September 2013
Authors: Ya Zhen Li, Ya Jing Wang, Jing Guan
First the data on different antennas is divided into blocks.
We can obtain multiple sets of data, and finally choose the optimal PAPR performance of a group of data to be transmitted.
Firstly, the first sub-block of data is inverted and replaced, while maintaining the same data block of the other sub, thereby generating 4 new set of data sequences.
Then transform the third sub-block of data, turn to operation, finally we will obtain the set of data with optimal PAPR performance[4].
When ai,j is 1, the data on the two antennas is kept to the same, when ai,j is 2, the data of the j-th data blocks on the two antennas is simultaneously negated; When ai,j is 3,the data of the j-th data blocks on the two antennas is replaced; When ai,j is 4, the data of the j-th data blocks on the two antennas is replacement negated.
We can obtain multiple sets of data, and finally choose the optimal PAPR performance of a group of data to be transmitted.
Firstly, the first sub-block of data is inverted and replaced, while maintaining the same data block of the other sub, thereby generating 4 new set of data sequences.
Then transform the third sub-block of data, turn to operation, finally we will obtain the set of data with optimal PAPR performance[4].
When ai,j is 1, the data on the two antennas is kept to the same, when ai,j is 2, the data of the j-th data blocks on the two antennas is simultaneously negated; When ai,j is 3,the data of the j-th data blocks on the two antennas is replaced; When ai,j is 4, the data of the j-th data blocks on the two antennas is replacement negated.
Online since: September 2014
Authors: Wasim Ullah Khan, Anis Hamza Fakeeha, Ahmed Sadeq Al-Fatish, Muhammad Awais Naeem, Ahmed Ibrahim Aidid, Ahmed Elhag Abasaeed
The catalysts were characterized by BET, TGA and temperature programmed reduction (TPR).
The specific surface area of the fresh and used catalyst was measured with a Micromeritics Tristar II 3020 surface area and porosity analyzer from N2 adsorption desorption data at -196°C.
TGA curves for Ni and Co based mono- and bimetallic catalysts Temperature Programmed Reduction (TPR).
In order to find the reducibility of the catalysts, temperature programmed reduction (TPR) is employed.
In Ni-Co bimetallic catalysts, the complete reduction usually involves two or more overlapped reduction peaks due to the simultaneous reduction of Co3O4 and NiO species.
The specific surface area of the fresh and used catalyst was measured with a Micromeritics Tristar II 3020 surface area and porosity analyzer from N2 adsorption desorption data at -196°C.
TGA curves for Ni and Co based mono- and bimetallic catalysts Temperature Programmed Reduction (TPR).
In order to find the reducibility of the catalysts, temperature programmed reduction (TPR) is employed.
In Ni-Co bimetallic catalysts, the complete reduction usually involves two or more overlapped reduction peaks due to the simultaneous reduction of Co3O4 and NiO species.
Online since: May 2012
Authors: Wei Zhou, Ling Chen, Wei Zhang
However, with the economic and population growth, the share will continue to rise, and furthermore, China is facing increasing pressure on carbon emissions from the international community, demanding that the Chinese commit to undertake more greenhouse gas emission reduction obligations.
These policies will encourage the behavior of energy-saving and emission-reduction while promoting the popularity of low-carbon technologies.
It exists some preferential tax policies that encourage energy-saving and emission-reduction, environmental protection and utilization of renewable resources in the enterprises’ production process on value-added tax, consumption tax, resource tax and income tax.
Although this each category of taxes on their respective preference item has a specific requirement, which could make the enterprises in the production process can be energy-saving and emission-reduction through tax preferential benefits, these preferential tax policies are scattered.
[5] Kazuhiro Ueda: “From the perspective of sustainable development of Japan’s regional development policy”, the Second Sino-Japanese economic • Western China Environment Forum and resource development, environmental protection and integration of urban and rural development of the international paper data collection, Xi’an: Northwest University of Economics and Management, 2010.7.18-19
These policies will encourage the behavior of energy-saving and emission-reduction while promoting the popularity of low-carbon technologies.
It exists some preferential tax policies that encourage energy-saving and emission-reduction, environmental protection and utilization of renewable resources in the enterprises’ production process on value-added tax, consumption tax, resource tax and income tax.
Although this each category of taxes on their respective preference item has a specific requirement, which could make the enterprises in the production process can be energy-saving and emission-reduction through tax preferential benefits, these preferential tax policies are scattered.
[5] Kazuhiro Ueda: “From the perspective of sustainable development of Japan’s regional development policy”, the Second Sino-Japanese economic • Western China Environment Forum and resource development, environmental protection and integration of urban and rural development of the international paper data collection, Xi’an: Northwest University of Economics and Management, 2010.7.18-19
Numerical Study the NOx Emission Characteristics of 600MW Opposed Swirling Coal-Fired Utility Boiler
Online since: August 2014
Authors: Ya Ming Liu, Fang Yong Li, Qi Sheng Xu
The current CFD model had adopted a chemical percolation devolatilization (CPD) model and been validated by comparing the simulated results with the experimental data.
Then, due to the reduction of NO by the char, the average NO concentrations reduce gradually.
At the same time, the reduction atmosphere is enhanced, reducing more NO formed.
Then, due to the reduction of NO by the char, the average NO concentrations reduce gradually.
The simulated results, such as the carbon content in fly ash, NO and oxygen concentrations in flue gas at the furnace exit, have been compared with the experimental data to validate the established CFD model.
Then, due to the reduction of NO by the char, the average NO concentrations reduce gradually.
At the same time, the reduction atmosphere is enhanced, reducing more NO formed.
Then, due to the reduction of NO by the char, the average NO concentrations reduce gradually.
The simulated results, such as the carbon content in fly ash, NO and oxygen concentrations in flue gas at the furnace exit, have been compared with the experimental data to validate the established CFD model.
Online since: December 2014
Authors: Alexandre Antunes Ribeiro, M.V. Oliveira, L.C. Pereira, J.C. Garcia de Blas, T.S. Barros, S.S. Carvalho, L.R. Guzela, C. Barbosa, I.C. Abud, R.M. Balestra
Powder metallurgy has been used for titanium based implants fabrication due to advantages such as the production of more complex shapes and reduction of machining operation.
According to this data, the Ti powders were subjected to standard powder metallurgy operations: uniaxial compacting at 730 MPa, with expected relative density of 79%.
b a Fig. 2 – General aspect of rolling process: (a) sample with compacted powders in a machined recipient; (b) the same specimen after 50% thickness reduction rolling with indication of sample cutting.
The data indicated that the Ti powders are according to ASTM F67-06 grade 2 for oxygen (O), carbon (C) and iron (Fe) contents.
However, when all the results are compared, it is evident that 300 to 400°C can be considered the best temperature range for rolling this material, since it allows obtaining low porosity but with significantly higher hardness, comparable to the reported data obtained with bulk titanium processed by ECAP at this same temperature [16].
According to this data, the Ti powders were subjected to standard powder metallurgy operations: uniaxial compacting at 730 MPa, with expected relative density of 79%.
b a Fig. 2 – General aspect of rolling process: (a) sample with compacted powders in a machined recipient; (b) the same specimen after 50% thickness reduction rolling with indication of sample cutting.
The data indicated that the Ti powders are according to ASTM F67-06 grade 2 for oxygen (O), carbon (C) and iron (Fe) contents.
However, when all the results are compared, it is evident that 300 to 400°C can be considered the best temperature range for rolling this material, since it allows obtaining low porosity but with significantly higher hardness, comparable to the reported data obtained with bulk titanium processed by ECAP at this same temperature [16].
Online since: July 2014
Authors: Bao Lin Wu, Gang Wan
Results and discussion
Fig.1 shows the microstructures and scattered data pole figures of AZ31 alloys after ECAP and annealed.
The results of scattered data pole figures also indicate that the basal plane texture component is the primary orientation for small grains.
Fig.1 Microstructures and scattered data pole figures of as-impact samples(a-1pass,b-4passes) The relative reduction of the height at rupture was considered as a measure of the impact ductility of the material [8].
The sample (impacted along TD) possesses the highest impact reduction (about 0.3) at the strain rate of 1681S-1.
At this high reduction, the maximum flow stress reaches nearly as high as 436MPa.
The results of scattered data pole figures also indicate that the basal plane texture component is the primary orientation for small grains.
Fig.1 Microstructures and scattered data pole figures of as-impact samples(a-1pass,b-4passes) The relative reduction of the height at rupture was considered as a measure of the impact ductility of the material [8].
The sample (impacted along TD) possesses the highest impact reduction (about 0.3) at the strain rate of 1681S-1.
At this high reduction, the maximum flow stress reaches nearly as high as 436MPa.
Online since: June 2012
Authors: Ming Rui Xin, Zhan Guo Cui, Lian Xiang Jiang
High integration of electronic using hybrids and ASICs allowed to reduce the number of units needed to implement all the data handling, power distribution and attitude control electronics.
3) Uniform data flow design including satellite platform data and payload data.
Uniform data flow make the information transferring and information sharing convenient. 4) Enhance the processing ability for payload data and independent management ability. 5) Upgrade the information security management ability.
The equipment is composed of several modular modules with the same inner interface using inner data bus.
Firstly, we write data to RAM to verify the writing function and then read out the data from RAM to check the reading function, the writing data and reading data is compared to make sure the correctness of RAM.
ROM and EEPROM stores important software data so that they aren’t allowed to erase or reprogram entirely.
Uniform data flow make the information transferring and information sharing convenient. 4) Enhance the processing ability for payload data and independent management ability. 5) Upgrade the information security management ability.
The equipment is composed of several modular modules with the same inner interface using inner data bus.
Firstly, we write data to RAM to verify the writing function and then read out the data from RAM to check the reading function, the writing data and reading data is compared to make sure the correctness of RAM.
ROM and EEPROM stores important software data so that they aren’t allowed to erase or reprogram entirely.