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Online since: July 2017
Authors: Rudolf Kawalla, Sergey Guk, Daniel Hoppach
The values of the yield strength and reduction of area, which are important for spheroidization annealing, were determined.
Using the Avrami approach, the behavior of the steel has been modeled on the basis of these data.
This results in a decrease of the yield strength by 40% and an increase in the reduction of area by almost 100%.
Thus, the reduction of area increases to a maximum of more than 40% after half an hour of annealing.
Figure 4: Area of spheroidized cementite during intercritical (a), subcritical cyclic (b) and spheroidization heat treatment involving the decomposition of supercooled austenite (c) Here, the statistical distribution of data for each investigated annealing time is shown in quartiles, where averages are highlighted.
Using the Avrami approach, the behavior of the steel has been modeled on the basis of these data.
This results in a decrease of the yield strength by 40% and an increase in the reduction of area by almost 100%.
Thus, the reduction of area increases to a maximum of more than 40% after half an hour of annealing.
Figure 4: Area of spheroidized cementite during intercritical (a), subcritical cyclic (b) and spheroidization heat treatment involving the decomposition of supercooled austenite (c) Here, the statistical distribution of data for each investigated annealing time is shown in quartiles, where averages are highlighted.
Online since: September 2013
Authors: Hong Wu Zhang, Jia Hui Yin, Lin Yun Shi
The data showed that during"11th Five-Year" period, China's total energy consumption was expected to be 3 billion tons (standard coal, the same below), but the final consumption was amounted to 3.25 billion tons, 8.3% more than the expected.
The inter-provincial comparison between energy-saving and carbon emission efficiency relationship in China Source of research data.
The data information in this paper mainly includes economic data (the GDP absolute number of the provinces, absolute number and comparable index of the industrial sectors), energy consumption (the total energy consumption of the inter-provincial and industrial sectors), and CO2 emission (the final emission of the inter-provincial and sectors, emission of conversion sectors and emission of the origin of various types energies).
Economic data can be obtained from the calendar year "China Statistical Yearbook" and energy consumption data can be obtained from the calendar year "China Energy Statistical Yearbook", but the data of CO2 emission is not available directly.
“Energy Statistical Yearbook” and combination of the various types of energy carbon emission coefficient listed by Japan Science and Technology Agency, the source of GDP data is the same as in figure 1.
The inter-provincial comparison between energy-saving and carbon emission efficiency relationship in China Source of research data.
The data information in this paper mainly includes economic data (the GDP absolute number of the provinces, absolute number and comparable index of the industrial sectors), energy consumption (the total energy consumption of the inter-provincial and industrial sectors), and CO2 emission (the final emission of the inter-provincial and sectors, emission of conversion sectors and emission of the origin of various types energies).
Economic data can be obtained from the calendar year "China Statistical Yearbook" and energy consumption data can be obtained from the calendar year "China Energy Statistical Yearbook", but the data of CO2 emission is not available directly.
“Energy Statistical Yearbook” and combination of the various types of energy carbon emission coefficient listed by Japan Science and Technology Agency, the source of GDP data is the same as in figure 1.
Online since: February 2011
Authors: De Yuan Zhang, Yue Hao Luo, Hua Wei Chen
The hard DLC film is one of the factors affecting the reduction of friction and wear loss, moreover, the wear resistance of different modified surface can be improved on different levels compared with the original epoxy resin coating.
By analysis, the main reasons leading to the surface friction reduction and wear resistance increasement of coatings are the hard DLC film and layered structure of C.
Fig.1 Diagram of wearing experiment Fig.2 Key parts of SRV wear machine In the process of wearing experiment, the downward pressure exerted on the smooth steel ball is 10N, and the stroke of the rectilinear reciprocating movement is set up as 1.4mm, the frequency is set up as 10Hz, and the other relevant parameters of experiment equipment are set up in accordance with the requirements, the wear time is set up as 5 minutes, through the data output of experiment, the friction coefficient can be obtained.
During the course of experiment, in order to ensure the accuracy and reliability of experimental results, after the end of each wear test, the ball should be replaced by a new one for avoiding residual coating materials on the ball surface, so the data errors of experimental produced by wearing ball can be eliminated.
The friction coefficient of different coating surfaces can be output by data processing and transformation, the frequency of collecting data points is 1/s in the course of experiment, and Fig. 3 shows the friction coefficient curves of different coating surfaces in experiment.
By analysis, the main reasons leading to the surface friction reduction and wear resistance increasement of coatings are the hard DLC film and layered structure of C.
Fig.1 Diagram of wearing experiment Fig.2 Key parts of SRV wear machine In the process of wearing experiment, the downward pressure exerted on the smooth steel ball is 10N, and the stroke of the rectilinear reciprocating movement is set up as 1.4mm, the frequency is set up as 10Hz, and the other relevant parameters of experiment equipment are set up in accordance with the requirements, the wear time is set up as 5 minutes, through the data output of experiment, the friction coefficient can be obtained.
During the course of experiment, in order to ensure the accuracy and reliability of experimental results, after the end of each wear test, the ball should be replaced by a new one for avoiding residual coating materials on the ball surface, so the data errors of experimental produced by wearing ball can be eliminated.
The friction coefficient of different coating surfaces can be output by data processing and transformation, the frequency of collecting data points is 1/s in the course of experiment, and Fig. 3 shows the friction coefficient curves of different coating surfaces in experiment.
Online since: December 2010
Authors: Bang Yan Ye, L.Y. Sun, Xiu Quan Cheng, Qin Xiang Xia
For spin-forming of CTIG with a large number of teeth,
the diameter reduction is not conducive to removing the part from the mandrel.
And the reduction amount is related to the number of teeth of CTIG.
For CTIG with a small number of gear teeth, the reduction amount in internal diameter of blank is small.
For a CTIG with trapezoidal tooth formed by spin-forming, the root diameter of part can be chosen as the locating datum.
Though the reduction amount is still small, it exceeds the clearance limit between mandrel and blank.
And the reduction amount is related to the number of teeth of CTIG.
For CTIG with a small number of gear teeth, the reduction amount in internal diameter of blank is small.
For a CTIG with trapezoidal tooth formed by spin-forming, the root diameter of part can be chosen as the locating datum.
Though the reduction amount is still small, it exceeds the clearance limit between mandrel and blank.
Online since: May 2006
Authors: Francisco Martin Labajos, Patricia Benito, Vicente Rives
Temperature-Programmed Reduction (TPR) analysis was carried out in a Micromeritics 2900
TPD/TPR instrument.
Temperature-programmed reduction In order to assess the effect of the microwave ageing on the reducibility of the synthesized hydrotalcite-like compounds, a temperature-programmed reduction (TPR) study was carried out.
On the whole, the reduction of Ni2+ into Ni0 takes place in the 375-750 ºC range; the complex curve suggests that more than one reduction process occur simultaneously.
TPR profiles of the samples are against reduction and sintering by the matrix, requiring higher reduction temperatures and resulting in a better dispersion of the nickel particles [21].
Rives in Layered Double Hydroxides: Present and Future (Nova Science Publishers, Inc., New York, 2001) p. 115 [12] Joint Committee on Powder Diffraction Standards, International Centre for Diffraction Data, Pennsylvania, 1977 [13] P.
Temperature-programmed reduction In order to assess the effect of the microwave ageing on the reducibility of the synthesized hydrotalcite-like compounds, a temperature-programmed reduction (TPR) study was carried out.
On the whole, the reduction of Ni2+ into Ni0 takes place in the 375-750 ºC range; the complex curve suggests that more than one reduction process occur simultaneously.
TPR profiles of the samples are against reduction and sintering by the matrix, requiring higher reduction temperatures and resulting in a better dispersion of the nickel particles [21].
Rives in Layered Double Hydroxides: Present and Future (Nova Science Publishers, Inc., New York, 2001) p. 115 [12] Joint Committee on Powder Diffraction Standards, International Centre for Diffraction Data, Pennsylvania, 1977 [13] P.
Online since: June 2013
Authors: Shi Long Wang, Li Na Wang
Therefore, choosing an effective technology of frequency reduction is necessary.
Envelope Detection Technology The envelope detection technology is an important part of this ultrasonic data collection system.
Experimental Study The device as shown in Fig.2. namely is the ultrasonic data collection system which can realize the acquisition of the ultrasonic signal and complete the frequency reduction of the ultrasonic signals PCI8664 data acquisition board is used to collect data coupled with the software labview.
Utilize the system to get the experimental data by testing on the ball bearing of a small AC motor.
Conclusions In summary, the proposed ultrasonic data collection system would be capable of applying in the bearing defect diagnosis.
Envelope Detection Technology The envelope detection technology is an important part of this ultrasonic data collection system.
Experimental Study The device as shown in Fig.2. namely is the ultrasonic data collection system which can realize the acquisition of the ultrasonic signal and complete the frequency reduction of the ultrasonic signals PCI8664 data acquisition board is used to collect data coupled with the software labview.
Utilize the system to get the experimental data by testing on the ball bearing of a small AC motor.
Conclusions In summary, the proposed ultrasonic data collection system would be capable of applying in the bearing defect diagnosis.
Online since: June 2012
Authors: Smagulova Nazym, Ermoldina Elmira, Kayrbekov Zhaksyntay, Vassilina Gulzira, Rejiafu Nurzai
Thus, the data on reduction of PNDA on the catalyst of the type Pd-GtK / B-094 shows, that modified catalyst of humic acid leads to the increase of the rate of reduction reaction of nitrocompounds.
In the medium of solvent during reduction of catalyst the swelling of surface-bound polymer chains occurs along with reduction of palladium with partial destruction of metal-polymer bonds.
Conclusion Thus, the experimental data shows, that the catalyst of type Pd–GtK/B-094 modified by humic acid leads to the formation of nanosized particles of active phase, which in turn leads to the increase of the rate of reduction reaction of nitrocompounds.
Catalytic reduction of H-613 on smeared palladium catalysts Thes. rep. 59.Rep.
Palladium catalysts smeared on shungite during reduction of nitrocompounds Thes.
In the medium of solvent during reduction of catalyst the swelling of surface-bound polymer chains occurs along with reduction of palladium with partial destruction of metal-polymer bonds.
Conclusion Thus, the experimental data shows, that the catalyst of type Pd–GtK/B-094 modified by humic acid leads to the formation of nanosized particles of active phase, which in turn leads to the increase of the rate of reduction reaction of nitrocompounds.
Catalytic reduction of H-613 on smeared palladium catalysts Thes. rep. 59.Rep.
Palladium catalysts smeared on shungite during reduction of nitrocompounds Thes.
Online since: September 2018
Authors: Vitaliy A. Gladkikh, Alexander V. Ginzburg, Michail M. Kozhevnikov, Sofia T. Kozhevnikova
The database is created to introduce the necessary data into the information model of the bridge structure, as well as the result parameters of the interaction with the model.
The data on the practical implementation of the proposed approach on the example of the bridge construction object is presented; the analysis is made compared with the established process of construction production organization, and the advantages of the first one are fixed.
At the next stage, the data is evaluated for compliance with the requirements of the working and regulatory documentation.
The information generated during the construction process in the information model of the bridge structure allows creating a data array for using in the maintenance and operation.
Summary The following results were obtained in the research process: − approach is developed based on the information modeling technology introduction in the construction organization of the bridge structures; − list of the parameters and data is developed to introduce the bridge structure into the information model with the identification of the output data; − methodology is developed to organize the bridge structure construction using the information modeling in the activity of the construction control service.
The data on the practical implementation of the proposed approach on the example of the bridge construction object is presented; the analysis is made compared with the established process of construction production organization, and the advantages of the first one are fixed.
At the next stage, the data is evaluated for compliance with the requirements of the working and regulatory documentation.
The information generated during the construction process in the information model of the bridge structure allows creating a data array for using in the maintenance and operation.
Summary The following results were obtained in the research process: − approach is developed based on the information modeling technology introduction in the construction organization of the bridge structures; − list of the parameters and data is developed to introduce the bridge structure into the information model with the identification of the output data; − methodology is developed to organize the bridge structure construction using the information modeling in the activity of the construction control service.
Online since: January 2017
Authors: Alexandr V. Shchegolkov, Boris S. Trufanov, Victor D. Hmyrov, Vyacheslav B. Kudenko, Yulia V. Guryanova, Dmitry V. Guryanov
The experimental investigations showed a high efficiency of technology which led to a reduction of pathogens at the pre-processing of manure by 60%.
The use of sodium acetate promotes to the covering manure decontamination and subsequent reduction of pathogens.
Meanwhile there are published data, in which the efficiency of the uses of carbon nanostructures as the additives in fertilizers is indicated [2, 3, 4, 5, 6], so that the addition of the carbon nanostructures into the covering manure allows to obtain the highly effective fertilizer.
The length of the flat line is determined by the definite integral formula: ; (5) According to the above data the agitator-loader device with needle disks and the sodium acetate aqueous solution with carbon nanostructures feeder was developed.
The experimental tests demonstrated high efficiency technology, which leads to a reduction of pathogens at the pretreatment step at 60%.
The use of sodium acetate promotes to the covering manure decontamination and subsequent reduction of pathogens.
Meanwhile there are published data, in which the efficiency of the uses of carbon nanostructures as the additives in fertilizers is indicated [2, 3, 4, 5, 6], so that the addition of the carbon nanostructures into the covering manure allows to obtain the highly effective fertilizer.
The length of the flat line is determined by the definite integral formula: ; (5) According to the above data the agitator-loader device with needle disks and the sodium acetate aqueous solution with carbon nanostructures feeder was developed.
The experimental tests demonstrated high efficiency technology, which leads to a reduction of pathogens at the pretreatment step at 60%.
Online since: October 2013
Authors: Mohd Hasnun Arif Hassan, Mohd Azri Aris, Zahari Taha
The ball is dropped for five times and the data is recorded using the AMTI Net Force software (version 3.5.1).
Each trial is 1 second in duration, with data collected at 1000 Hz.
The recorded data is read using BioAnalysis software (version 2.3.1, Biosoft), and then imported into Microsoft Excel where the resultant forces are calculated and the peak resultant force for each trial is determined.
The reduction in the peak force is associated with the duration of impact.
The PU comb-gel has outperformed other materials in terms of peak force and impulse reduction.
Each trial is 1 second in duration, with data collected at 1000 Hz.
The recorded data is read using BioAnalysis software (version 2.3.1, Biosoft), and then imported into Microsoft Excel where the resultant forces are calculated and the peak resultant force for each trial is determined.
The reduction in the peak force is associated with the duration of impact.
The PU comb-gel has outperformed other materials in terms of peak force and impulse reduction.