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Online since: January 2012
Authors: Guo Ying Yan
Data Acquisition.
Data Processing.
The Design of Data Display Circuit.
Digital manometer has the following functions: acquiring data from the external environment, processing data, digital display.
Digital manometer software system includes: the main program, AD0809’s starting and data readout, data processing, data display (LED display and dynamic scanning) and so on.
Data Processing.
The Design of Data Display Circuit.
Digital manometer has the following functions: acquiring data from the external environment, processing data, digital display.
Digital manometer software system includes: the main program, AD0809’s starting and data readout, data processing, data display (LED display and dynamic scanning) and so on.
Online since: November 2013
Authors: Wei Wang, Chong Qian, Rong Rong Wang
The temperature data was transferred through Ethernet to remote computer, and was displayed on the screen of remote computer.
When the system was set as automatic made, computer could regular steam supply based on temperature data.
Functions such as dynamic temperature display, controlling of steam and data backup could be achieved by the monitoring and controlling software based on Delphi which could not only monitoring and controlling remote usage of steam but also supporting data to build module for studying steam consumption.
It includes 16 Kbytes internal buffer for data transmission.
Serial Peripheral Interface mode used only four pins for data communication between the W5100 and the MCU.
When the system was set as automatic made, computer could regular steam supply based on temperature data.
Functions such as dynamic temperature display, controlling of steam and data backup could be achieved by the monitoring and controlling software based on Delphi which could not only monitoring and controlling remote usage of steam but also supporting data to build module for studying steam consumption.
It includes 16 Kbytes internal buffer for data transmission.
Serial Peripheral Interface mode used only four pins for data communication between the W5100 and the MCU.
Online since: May 2020
Authors: Sergei N. Fedorov, Nina V. Nemchinova, Andrey A. Tyutrin
Modeling showed that, when using the proposed combined charge, silicon extraction factor would amount to 69.25%, which agrees well with practical data.
JSC Kremniy (Shelekhov, Irkutsk Oblast), a RUSAL subsidiary, produces crystalline silicon by carbon-based reduction from quartzites using 16.5- or 25-MW.A three-phase AC ore-thermal furnaces (OTF) [5-7].
The Mg2Si distribution curve shows that this compound, produced in Reservoir 3 and then entering Reservoir 4, would cause the incomplete Si reduction and be present in the final product.
We believe the model is proven adequate, as the following indicators match per the model and per the production data: the phase state of the Fig. 4.
Analysis of simulation data proves the model adequate, which means we can recommend using the pelletized industrial waste of silicon and aluminum production to produce silicon by pyrometallurgy.
JSC Kremniy (Shelekhov, Irkutsk Oblast), a RUSAL subsidiary, produces crystalline silicon by carbon-based reduction from quartzites using 16.5- or 25-MW.A three-phase AC ore-thermal furnaces (OTF) [5-7].
The Mg2Si distribution curve shows that this compound, produced in Reservoir 3 and then entering Reservoir 4, would cause the incomplete Si reduction and be present in the final product.
We believe the model is proven adequate, as the following indicators match per the model and per the production data: the phase state of the Fig. 4.
Analysis of simulation data proves the model adequate, which means we can recommend using the pelletized industrial waste of silicon and aluminum production to produce silicon by pyrometallurgy.
Online since: October 2014
Authors: Neale Ramaswami Neelameggham, R.E. Brown
Present processes of electrolytic as well as the thermal reduction will be described along with their carbon dioxide emissions.
Here we have carried out the carbon dioxide emission calculation by using the published data.
Magnesium oxide carbothermal - reduction takes place above 1900°C.
Apparently hydroelectric power is used in providing the endothermic heat for the resistance heated furnaces where the reduction takes place, as well as for the ferrosilicon production.
Neelameggham, Soda Fuel Cycle Metallurgy –Choices For CO2 Reduction, in CO2 Reduction Metallurgy, N.
Here we have carried out the carbon dioxide emission calculation by using the published data.
Magnesium oxide carbothermal - reduction takes place above 1900°C.
Apparently hydroelectric power is used in providing the endothermic heat for the resistance heated furnaces where the reduction takes place, as well as for the ferrosilicon production.
Neelameggham, Soda Fuel Cycle Metallurgy –Choices For CO2 Reduction, in CO2 Reduction Metallurgy, N.
Online since: July 2011
Authors: Peng Yang, Wen Yong Liu, Yong Zhang, Yong Ye An
CHINA
aliuwenyong@126.com,byangpeng_hsr@126.com,
cjece 0123@126.com,danyongye@yahoo.com
Keywords: Iron tailings; Dry mortar; Comprehension utilization; Proportion design
Abstract: This essay is the subject of national eleventh five support schemes: The analysis of key technology on emission reduction and comprehension utilization of solid waste from large iron ore mine (Number:2008BAB32B14).
After analyzing test data result, according to the provisions of “Specification for mix proportion design of masonry mortar” (JGJ 98-2000), In accordance with the principles of maximum using iron tailings and higher strength in 28d, recommended proportion of M5, M7.5, M10, M15, M20 iron tailings dry mortar has been determined.
Introduction This essay is the subject of national eleventh five support schemes: The analysis of key technology on emission reduction and comprehension utilization of solid waste from large iron ore mine (Number:2008BAB32B14).
After analyzing test data result, according to the provisions of “Specification for mix proportion design of masonry mortar” (JGJ 98-2000), in accordance with the principles of maximum using iron tailings and higher strength in 28d, recommended proportion of M5, M7.5, M10, M15, M20 iron tailings dry mortar has been determined.
The test data results refer with Table 7.
After analyzing test data result, according to the provisions of “Specification for mix proportion design of masonry mortar” (JGJ 98-2000), In accordance with the principles of maximum using iron tailings and higher strength in 28d, recommended proportion of M5, M7.5, M10, M15, M20 iron tailings dry mortar has been determined.
Introduction This essay is the subject of national eleventh five support schemes: The analysis of key technology on emission reduction and comprehension utilization of solid waste from large iron ore mine (Number:2008BAB32B14).
After analyzing test data result, according to the provisions of “Specification for mix proportion design of masonry mortar” (JGJ 98-2000), in accordance with the principles of maximum using iron tailings and higher strength in 28d, recommended proportion of M5, M7.5, M10, M15, M20 iron tailings dry mortar has been determined.
The test data results refer with Table 7.
Online since: June 2017
Authors: Duongruitai Nicomrat, Siriphatr Chamutpong
The results showed that indigenous LAB had more predominant effective species helping the induction of sugar but reduction in pH.
Additionally, slight reductions detected for alcohol production were observed after LAB and yeasts were both inoculated in the fermentation.
LAB isolates induced the sugar contents with high numbers of cells to 107-108 CFU/ mL during the fermentation days 3-7, and after that numbers of LAB isolates were declined to 103-104 CFU/ mL (data not shown).
Additionally, slight reductions detected for alcohol production were observed after LAB and yeasts were both inoculated in the fermentation.
LAB isolates induced the sugar contents with high numbers of cells to 107-108 CFU/ mL during the fermentation days 3-7, and after that numbers of LAB isolates were declined to 103-104 CFU/ mL (data not shown).
Online since: August 2004
Authors: I.G. Solórzano, E.A. Brocchi, M.S. Motta, P.K. Jena, F.J. Moura
This method is essentially based on a chemical route
aiming at the formation of oxides followed by their preferential reduction with hydrogen and further
sintering.
The present work comments briefly some kinetic behavior of the copper and nickel oxides reduction with hydrogen as well as the characterization of the obtained nano-composite material.
The reduction then took place at 250 oC and a Cu-Al2O3 (0.5 wt%) was formed.
Results and Discussions In terms of thermodynamics, the copper and aluminum oxides reductions with hydrogen have opposite behaviours.
Conclusions The thermodynamics and the experimental kinetics data of the systems studied can demonstrate the possibility of sintetizing nano-composites, such as Cu-Al2O3 and Ni-Al2O3, through a chemical route to co-form the oxides, followed by selective reduction with hydrogen in the temperature range of 250oC (Cu-Al2O3) and 450 oC (Ni-Al2O3).
The present work comments briefly some kinetic behavior of the copper and nickel oxides reduction with hydrogen as well as the characterization of the obtained nano-composite material.
The reduction then took place at 250 oC and a Cu-Al2O3 (0.5 wt%) was formed.
Results and Discussions In terms of thermodynamics, the copper and aluminum oxides reductions with hydrogen have opposite behaviours.
Conclusions The thermodynamics and the experimental kinetics data of the systems studied can demonstrate the possibility of sintetizing nano-composites, such as Cu-Al2O3 and Ni-Al2O3, through a chemical route to co-form the oxides, followed by selective reduction with hydrogen in the temperature range of 250oC (Cu-Al2O3) and 450 oC (Ni-Al2O3).
Online since: August 2011
Authors: Tian Yun Zhang, Kui Chen, Wei Wei
Its original data were 40 μm in particle size.
The reduction rates of friction coefficient and wear rate of PP/OMMT nanocomposites compared with bare PP at different load are shown in Tab. 1.
With the increase of load, the reduction rate of wear rate of nanocomposites, compared with pure PP at the same load becomes worse, from 60 % to 35 %, while that of the friction coefficient becomes better, from 4 % to 10 %.
Tab. 1 Reduction rates of friction coefficient and wear rate of nanocomposites at different load compared with PP Load /N OMMT content /% Friction coefficient reduction rate /% Wear rate reduction rate /% 150 3.0 4 60 200 1.5 5 42 250 1.5 10 35 SEM analysis of the worn surfaces.
Moreover, in the stage of self-organizing, OMMT galleries have a tendency of paralleling to worn surface under the work of heat produced from friction, which contributes to the reduction of friction coefficient in the course of friction.
The reduction rates of friction coefficient and wear rate of PP/OMMT nanocomposites compared with bare PP at different load are shown in Tab. 1.
With the increase of load, the reduction rate of wear rate of nanocomposites, compared with pure PP at the same load becomes worse, from 60 % to 35 %, while that of the friction coefficient becomes better, from 4 % to 10 %.
Tab. 1 Reduction rates of friction coefficient and wear rate of nanocomposites at different load compared with PP Load /N OMMT content /% Friction coefficient reduction rate /% Wear rate reduction rate /% 150 3.0 4 60 200 1.5 5 42 250 1.5 10 35 SEM analysis of the worn surfaces.
Moreover, in the stage of self-organizing, OMMT galleries have a tendency of paralleling to worn surface under the work of heat produced from friction, which contributes to the reduction of friction coefficient in the course of friction.
Online since: July 2011
Authors: Yan Ju, Liang Wang, Rong Bin Zhang
The product and reactant were analyzed by an on-line gas chromatograph equipped with a TCD and a data integration system.
H2-TPR profiles of catalysts are shown in Fig. 2 The bulk NiO sample obtained by calcination of Ni(NO3)2 displayed a reduction peak around 350℃.
A low reduction peak below 350℃ was observed on the TPR profiles of Ni/Al2O3 and Ni/Ben, which might be associated with the presence of Ni3+[4].
Besides the low reduction peak at 300℃, two separate peaks at 488℃ and 657℃ were present on the TPR curve of Ni/Ben, respectively.
The Ni/Al2O3 TPR profile showed a broad peak, either due to the reduction of various Ni species or to the reduction of one nickel oxide species by steps.
H2-TPR profiles of catalysts are shown in Fig. 2 The bulk NiO sample obtained by calcination of Ni(NO3)2 displayed a reduction peak around 350℃.
A low reduction peak below 350℃ was observed on the TPR profiles of Ni/Al2O3 and Ni/Ben, which might be associated with the presence of Ni3+[4].
Besides the low reduction peak at 300℃, two separate peaks at 488℃ and 657℃ were present on the TPR curve of Ni/Ben, respectively.
The Ni/Al2O3 TPR profile showed a broad peak, either due to the reduction of various Ni species or to the reduction of one nickel oxide species by steps.
Online since: May 2015
Authors: Emil Spišák, Luboš Kaščák, Ivan Gajdoš, Volodymyr Krasinskyi
Optimal build direction and slicing strategy address the reduction of roughness due to the staircase effect.
About the same level of Rz reduction is achieved with four GB passes.
Most significant Ra and Rz is observed when spraying putty was applied (61.26% Ra reduction and 67.41% Rz reduction for samples with 0.254 mm layer thickness).
Presented results also shows that surface pre-treatment with MEK before blasting can lead to roughness reduction and surface quality improvement.
Kłonica, Computer aided designing, engineering, manufacturing and data analysis: selected problems, Perfekta, Lublin, 2013
About the same level of Rz reduction is achieved with four GB passes.
Most significant Ra and Rz is observed when spraying putty was applied (61.26% Ra reduction and 67.41% Rz reduction for samples with 0.254 mm layer thickness).
Presented results also shows that surface pre-treatment with MEK before blasting can lead to roughness reduction and surface quality improvement.
Kłonica, Computer aided designing, engineering, manufacturing and data analysis: selected problems, Perfekta, Lublin, 2013