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Online since: October 2002
Authors: Heloísa A. Acciari, Christopher M.A. Brett, Antonio C. Guastaldi
The difference in the trends between Ecor and Icor between these binary phases
demonstrates the interplay between rate-determining anodic (metal dissolution) and cathodic
(oxygen reduction) reactions leading to surface oxide formation.
Fig.2 Complex plane impedance plots for Ag-Cu after 10 min immersion in 0.9% NaCl The data were adjusted with an equivalent circuit consisting of a parallel combination of a resistance, R1, and a Constant Phase Element (CPE), the CPE substituting the capacitance of the interfacial region up to 0.10 V vs.
Concerning the general behaviour, data obtained for Dispersalloy at the open circuit potential of ~0.l0 V vs.
Conclusions Differences in the corrosion rates and mechanism for individual phases in Dispersalloy dental amalgams have been shown by electrochemical data.
Fig.2 Complex plane impedance plots for Ag-Cu after 10 min immersion in 0.9% NaCl The data were adjusted with an equivalent circuit consisting of a parallel combination of a resistance, R1, and a Constant Phase Element (CPE), the CPE substituting the capacitance of the interfacial region up to 0.10 V vs.
Concerning the general behaviour, data obtained for Dispersalloy at the open circuit potential of ~0.l0 V vs.
Conclusions Differences in the corrosion rates and mechanism for individual phases in Dispersalloy dental amalgams have been shown by electrochemical data.
Online since: September 2013
Authors: Abdul Hakim Abdullah, Muhamad Faris Syafiq Khalid
Referring to the typical DMA data plot [11] in Fig. 3, the storage modulus graph trend of APFREC indicates that it is in its leathery state which is in between glassy region and rubbery state.
The sudden reduction in storage modulus of composites between 60 °C to 80 °C in Fig.2 is the proof that APFREC is in its leathery state.
Fig. 3, Typical DMA data plot shows different type of curve for different type of material state (glassy region, leathery state, rubbery state, and viscous state) [6] Although the un-aged (as produce) specimen has a higher value of storage modulus at lower temperature, the sudden drop of storage modulus occurred much earlier compared to the other aging specimens as the temperature rises.
[11] PerkinElmer® precisely, DMA Instrument Theory: A Typical DMA data plot, DMA8000 Standard Training Course 302, 27-30.
The sudden reduction in storage modulus of composites between 60 °C to 80 °C in Fig.2 is the proof that APFREC is in its leathery state.
Fig. 3, Typical DMA data plot shows different type of curve for different type of material state (glassy region, leathery state, rubbery state, and viscous state) [6] Although the un-aged (as produce) specimen has a higher value of storage modulus at lower temperature, the sudden drop of storage modulus occurred much earlier compared to the other aging specimens as the temperature rises.
[11] PerkinElmer® precisely, DMA Instrument Theory: A Typical DMA data plot, DMA8000 Standard Training Course 302, 27-30.
Online since: September 2014
Authors: Xin Sheng Xu, Fan Fan Zhu
In addition, it contains some meta-data such as timestamps, location, and author et al.
This poses challenges at the analysis of massive, heterogeneous, unstructured data.
We download these posts and replies from this topic forum by using Metaseeker system which can parse the webpage and then download these WebPages from internet to data base in a client.
Sen, in: Productivity and quality improvements, revenue increment, and rejection cost reduction in the manual component insertion lines through the application of ergonomics, International Journal of Industrial Ergonomics, Vol. 36 (2006), p.367-377 [4] R.
This poses challenges at the analysis of massive, heterogeneous, unstructured data.
We download these posts and replies from this topic forum by using Metaseeker system which can parse the webpage and then download these WebPages from internet to data base in a client.
Sen, in: Productivity and quality improvements, revenue increment, and rejection cost reduction in the manual component insertion lines through the application of ergonomics, International Journal of Industrial Ergonomics, Vol. 36 (2006), p.367-377 [4] R.
Online since: August 2014
Authors: S. Balasivanandha Prabu, R. Paskaramoorthy, Gurusamy P
The application of pressure on a molten metal during solidification may cause several effects such as a change in the melting temperature, change in the cooling rate, and reduction of gas and shrinkage porosities.
An eight channel data logger was used to record the temperature values at one-second intervals.
All six thermocouples were connected to a data logger which scanned the temperatures of the thermocouples at one-second intervals and stored them.
The temperature data were converted to ‘temperature-time’ curves for all thermocouples with the help of Visual Basic and .Net software.
An eight channel data logger was used to record the temperature values at one-second intervals.
All six thermocouples were connected to a data logger which scanned the temperatures of the thermocouples at one-second intervals and stored them.
The temperature data were converted to ‘temperature-time’ curves for all thermocouples with the help of Visual Basic and .Net software.
Online since: December 2014
Authors: Ying Chun Li, Chao Wang, Guo Sheng Hu
By study on the rheological performance of polymers, not only the optimal condition for process providing the foundation for design parameter but also it is obtained that essential data about the structural and molecular parameters[1~4].
Then after compaction and kept under the temperature for 5min, constant load is applied to squeeze the composites out of the capillary, with data about temperature and rate recorded automatically by electronic recorder. 1.5 Data analysis method Shearing stress :; Apparent shear rate :; Non-Newtonian index :; Shearing rate :; Apparent viscosityηa:, where Dp is the value of pressure difference of the capillary (Pa); R is the radius of capillary (mm); L is the length of capillary (mm); Q stands for the volume rate of flow (mm3•s-1).
The stronger the shearing stress, the more molecular chains are unwrapped and the more reduction in apparent viscousity.
Then after compaction and kept under the temperature for 5min, constant load is applied to squeeze the composites out of the capillary, with data about temperature and rate recorded automatically by electronic recorder. 1.5 Data analysis method Shearing stress :; Apparent shear rate :; Non-Newtonian index :; Shearing rate :; Apparent viscosityηa:, where Dp is the value of pressure difference of the capillary (Pa); R is the radius of capillary (mm); L is the length of capillary (mm); Q stands for the volume rate of flow (mm3•s-1).
The stronger the shearing stress, the more molecular chains are unwrapped and the more reduction in apparent viscousity.
Online since: October 2013
Authors: Martina Vikova, Michal Vik
The data collected was processed with the help of ColorTools® software and MS Excel® spreadsheet.
All the data collected throughout the previous measurements have to be ranked in proper order and processed.
Saturation dCh is described in this case as rest of color difference after subtraction of lightness difference: ∆Ch=∆E*2-∆L*2 (2) Data on graph in Fig. 5 shows that pigments P1 (Blue) and P3 (Yellow) follows approximately linear relationship.
This problem is solvable via development of simple color scale allowing reduction size of assessed visual color difference between changeable and stable part of flexible textile sensor.
All the data collected throughout the previous measurements have to be ranked in proper order and processed.
Saturation dCh is described in this case as rest of color difference after subtraction of lightness difference: ∆Ch=∆E*2-∆L*2 (2) Data on graph in Fig. 5 shows that pigments P1 (Blue) and P3 (Yellow) follows approximately linear relationship.
This problem is solvable via development of simple color scale allowing reduction size of assessed visual color difference between changeable and stable part of flexible textile sensor.
Online since: May 2016
Authors: Lucie Šťastná, Michal Šimon
Effective usage of resource will lead to reduction in costs and thus earning more money which is the goal of every company.
This phase determine the actual data based on the evaluation of input data.
This is the most difficult part of the first two phases, since the final results depend on the accuracy of the input data.
This phase determine the actual data based on the evaluation of input data.
This is the most difficult part of the first two phases, since the final results depend on the accuracy of the input data.
Online since: October 2015
Authors: Liliya A. Selyunina, Lyudmila N. Mishenina, Tatiana M. Botvina
IR wavebands positions and their assignments for the spectrum of calcium aluminate and its intermediate products of synthesis
Assignment
Temperature, [°С]
250
450
600
750
900
1000
1250
n(OH)
3460
3465
3440
3415
3435
3440
3433
nas (CH2)
2930
2930
n(COO-)
1595
1595
n(CO32-), n(H2O)
1423
1477
1426
1450
1447
1448
1448
ns(CO32-)
1110
CO32- in CaCO3
863
872
860
[AlO6]
808
798
Al-OH (end)
690
CO32- in CaCO3
715
[AlO4]
736
575
554
462
760
640
481
770
650
791
670
771
647
ss (-O-Al-O-)
437
435
433
XRD data revealed that the crystallization of the synthesized products started at 750 °C.
This result coincides with the data acquired throw IR spectroscopy.
XRD data is presented in Fig. 2.
It should be noted that increase in synthesis temperature results in increase of relative luminescence intensity due to formation of a more perfect structure, but it also decreases surface activity of the synthesized substances, which leads to a reduction in nonradiative transitions on the grain boundaries, and contributes to the intensification luminescence intensity.
This result coincides with the data acquired throw IR spectroscopy.
XRD data is presented in Fig. 2.
It should be noted that increase in synthesis temperature results in increase of relative luminescence intensity due to formation of a more perfect structure, but it also decreases surface activity of the synthesized substances, which leads to a reduction in nonradiative transitions on the grain boundaries, and contributes to the intensification luminescence intensity.
Online since: February 2012
Authors: Cheng Zhu Jin, Ge Zhan
It can be heated to 2000℃ under neutral reduction atmosphere, and it is not stable in the O2 atmosphere which used below 1000℃.
The experiment equipments include the WE-100A type hydraulic universal testing machine, high temperature resistant pressure sensor, the DT-8857H type infrared thermometer, the YD-28A type dynamic resistance strain gauge, the high performance data collection and analysis equipment INV303/306.
According to the experiment data curve we know that when the mass ratio of hexagonal boron nitride is 2%, the best pressure transmission performance is achieved, and the performance drops whether the ratio increase or reduces.
In Fig 4, the test data show that the thickness of powder with the pressure transmission coefficient has positive correlation, which correspond with exponential model and put forward by Janssen, Meiwu.
The experiment equipments include the WE-100A type hydraulic universal testing machine, high temperature resistant pressure sensor, the DT-8857H type infrared thermometer, the YD-28A type dynamic resistance strain gauge, the high performance data collection and analysis equipment INV303/306.
According to the experiment data curve we know that when the mass ratio of hexagonal boron nitride is 2%, the best pressure transmission performance is achieved, and the performance drops whether the ratio increase or reduces.
In Fig 4, the test data show that the thickness of powder with the pressure transmission coefficient has positive correlation, which correspond with exponential model and put forward by Janssen, Meiwu.