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Online since: January 2007
Authors: Marianna Zendron, Luca Girardini, Alberto Molinari
Decarburization is due to the reactions involving carbon which
lead to the reduction of the powder oxides.
Figure 4: relation cooling rate, carbon content and microstructure of material E Figure 5: relation cooling rate, carbon content and microstructure of material F 0,0 0,2 0,4 0,6 0,8 1,0 0 2 4 6 8 10 12 14 F/P F/P/B B/M M Cooling rate [K/s] Carbon Content [%C] 0 , 00 , 20 , 40 , 60 , 81 , 0 0 2 4 6 8 10 12 14 F/P F/P/B B/M M Cooling rate [K/s] Carbon Content [%C] 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 200 300 400 500 600 700 800 900 HV0.1 Carbon Content [%C] 4,5 K/s 8,3 K/s 11,1 K/s Figure 6: relation cooling rate, carbon content and microstructure of material G Figures 4, 5 and 6 confirm the indication from microhardness data.
Figure 4: relation cooling rate, carbon content and microstructure of material E Figure 5: relation cooling rate, carbon content and microstructure of material F 0,0 0,2 0,4 0,6 0,8 1,0 0 2 4 6 8 10 12 14 F/P F/P/B B/M M Cooling rate [K/s] Carbon Content [%C] 0 , 00 , 20 , 40 , 60 , 81 , 0 0 2 4 6 8 10 12 14 F/P F/P/B B/M M Cooling rate [K/s] Carbon Content [%C] 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 200 300 400 500 600 700 800 900 HV0.1 Carbon Content [%C] 4,5 K/s 8,3 K/s 11,1 K/s Figure 6: relation cooling rate, carbon content and microstructure of material G Figures 4, 5 and 6 confirm the indication from microhardness data.
Online since: November 2007
Authors: Liam M. Grover, Lauren E. Jackson, Adrian J. Wright
Powder X-ray diffraction
(PXRD) data, collected on a Siemens D-5000 diffractometer, were used to confirm phase purity.
Indeed, a comparison of theoretical densities show only a small reduction in density for γ-Ca(PO3)2 over β-Ca(PO3)2 of ~2.3% [10,11].
Indeed, a comparison of theoretical densities show only a small reduction in density for γ-Ca(PO3)2 over β-Ca(PO3)2 of ~2.3% [10,11].
Online since: December 2011
Authors: Byung Seok Lee, Kyoung Hoon Kim, Young Deok Yeom, Hyun Tae Kim, Joon Hwa Lee, Gyu Sik Kim, Chung Hyuk Lim
In addition, because of bringing the detrimental result as the toxic gas mainly generated in the misfire process with the small quantity to the human body, the discharge reduction of CO and monitoring are needed.
The selected ADC chip is an A/D Converter which is suitable for the gas concentration measurement for the high resolution measurement as a chip having the effective bit of 19bit in the maximum 20KHz Data rate.
The selected ADC chip is an A/D Converter which is suitable for the gas concentration measurement for the high resolution measurement as a chip having the effective bit of 19bit in the maximum 20KHz Data rate.
Online since: September 2009
Authors: Danut Ionel Vaireanu, Anca Cojocaru, Ioana Maior, Simona Caprarescu, Alexandra Ionescu, Valentin Radu
The effect of frequency range and number of measurements/decade
on the experiment duration
However, taking into account both table, it results that a significant reduction in experimental
duration (almost half the time) can be obtained employing 10 measurements/decade without running
the risk of compromising the experimental results.
A Nyquist plot of a PESA (polysulphone based membrane) and the corresponding EIS value of the real part of impedance, R1; d = 0.0211cm, σ= 1.418.10-5 Ώ -1cm-1 As one can see, the circular regression correlation coefficient, n = 0.974, obtained from 30 points regression is above 0.95 which suggest a very good fit of the experimental data with the Randles simulated values.
A Nyquist plot of a PESA (polysulphone based membrane) and the corresponding EIS value of the real part of impedance, R1; d = 0.0211cm, σ= 1.418.10-5 Ώ -1cm-1 As one can see, the circular regression correlation coefficient, n = 0.974, obtained from 30 points regression is above 0.95 which suggest a very good fit of the experimental data with the Randles simulated values.
Online since: December 2012
Authors: Zhi Qun Cheng, Li Wei Jin, Wen Shi
Then this modeling approach in providing accurate predictions required for big signal, for example, measured loadpull information, the GaN HEMT’s scattering parameters and corresponding simulated data are compared in the following Table. 1 and Fig. 2.
The insertion loss of the hybrid coupler can cause a reduction in total added power and combining efficiency, so it is an important task for Wilkinson design.
The insertion loss of the hybrid coupler can cause a reduction in total added power and combining efficiency, so it is an important task for Wilkinson design.
Online since: March 2006
Authors: Gabriela Maria Atanasiu, N. Curcudel
conventional seismic load that may be supported by the structure, base shear
force, respectively; necesarS is the conventional seismic load, base shear force determined according
to §5.3 of P100/92 provisions [1], which considers the structure respectively as being new and
calculated with the relation done in Eq.2 [2]:
rrsr
r
necesar kc
GcS
ε⋅ψ⋅β⋅⋅α=
⋅=
(2)
in which:
rc is the global seismic coefficient corresponding to the r mode of vibration;
G , gravitational loads resultant for the whole structure;
α, building importance coefficient, depending on structural importance classes;
sk , seismic intensity coefficient, depending on the design seismic location;
rβ , dynamic gain coefficient for the r vibration mode, depending on the spectral composition of the
seismic movement of the building's location;
ψ, coefficient of seismic effects reduction
Although the method we used is deterministic, the case study of the shear walls structure has offered a data base that proves to be sufficient in making the decision to seismically rehabilitate the structure as this is one of the quality procedures used in assessing the seismic safety of structures.
Although the method we used is deterministic, the case study of the shear walls structure has offered a data base that proves to be sufficient in making the decision to seismically rehabilitate the structure as this is one of the quality procedures used in assessing the seismic safety of structures.
Online since: June 2008
Authors: Shou Ju Li, Ying Xi Liu, Li Juan Cao, Zi Chang Shangguan
Chang (2004) finished the numerical and experimental
investigation on residual stress and compared the numerical solutions with experimental residual
stress data [4].
Instead, the method deactivates them by multiplying their stiffness by a severe reduction factor.
Instead, the method deactivates them by multiplying their stiffness by a severe reduction factor.