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Online since: November 2013
Authors: Rajendra Doiphode, Bhagwati Prasad Kashyap, Nityanand Prabhu, S.V.S. Narayana Murty
Total number of passes was 5 for each bar with 10% reduction per pass.
At the same time there occurs a reduction in twins as shown in the figure 2(b).
Mordike, “Magnesium Technology”, Metallurgy, design data applications, Springer Berlin Heidelberg New York, 2006
At the same time there occurs a reduction in twins as shown in the figure 2(b).
Mordike, “Magnesium Technology”, Metallurgy, design data applications, Springer Berlin Heidelberg New York, 2006
Online since: March 2008
Authors: Koichi Hashiguchi, S. Ozaki, D.H. Chen
Then, the qualitative property of the present model is
examined by numerical experiments and the validity for prediction of friction behavior of real materials
is verified comparing with test data for the linear sliding phenomenon.
Then, let it be assumed that the reduction is caused by the contraction of the sliding surface, i.e. the isotropic softening due to the plastic-sliding. 2 ) If the sliding ceases after the reduction of friction coefficient, the friction coefficient recovers gradually with the elapse of time and the static-friction is reproduced after a sufficient time.
Then, let it be assumed that the reduction is caused by the contraction of the sliding surface, i.e. the isotropic softening due to the plastic-sliding. 2 ) If the sliding ceases after the reduction of friction coefficient, the friction coefficient recovers gradually with the elapse of time and the static-friction is reproduced after a sufficient time.
Online since: April 2024
Authors: Jakub Kralovanec, Martin Moravcik
The model in ATENA 2D allowed a non-linear analysis that took into account the stiffness reduction in the mid-section due to the crack propagation.
Moreover, the analysis that considered a reduction of prestressing in the ties was performed too.
It is important to mention that the presented analysis lacks a lot of important data from the time of the construction.
Moreover, the analysis that considered a reduction of prestressing in the ties was performed too.
It is important to mention that the presented analysis lacks a lot of important data from the time of the construction.
Online since: February 2012
Authors: Yao Chun Yao, Takayuki Watanabe, Kazuyuki Yatsuda
Thermal plasmas have been widely applied to many fields because of some unique advantages, such as high chemical reactivity, easy and rapid generation of high temperature, high enthalpy to enhance the reaction kinetic, rapid quenching capability, and oxidation or reduction atmosphere in accordance with required chemical reaction.
The data were collected in the 2θ range 3-90o with a step size of 0.02o and a scan speed of 4o/min.
The shrinkage of particle size after the plasma treatment is attributed to the reduction of material porosity.
The data were collected in the 2θ range 3-90o with a step size of 0.02o and a scan speed of 4o/min.
The shrinkage of particle size after the plasma treatment is attributed to the reduction of material porosity.
Online since: May 2016
Authors: Maciej Pietrzyk, Norbert Kwiaton, Roman Kuziak
The material was cold rolled from 2.6 mm hot strip with a cold rolling reduction of 65 %.
Dilatometric experiments were conducted in order to generate material data for adjusting the developed phase transformations model parameters to experimental steel.
This effect can be explained in terms of carbon content in austenite, since increasing the cooling rate from 207 to 409 K/s reduces substantially the fraction of ferrite which subsequently causes a reduction of carbon content in the austenite.
Dilatometric experiments were conducted in order to generate material data for adjusting the developed phase transformations model parameters to experimental steel.
This effect can be explained in terms of carbon content in austenite, since increasing the cooling rate from 207 to 409 K/s reduces substantially the fraction of ferrite which subsequently causes a reduction of carbon content in the austenite.
Online since: November 2015
Authors: A.M. Mustafa Al Bakri, Sam Sung Ting, Kamarudin Husin, Omar Sabbar Dahham, N.Z. Noriman, H. Rosniza, M.F. Omar
Results showed that the addition of NRL-G up to 20 phr, particularly for the fine size has increased the tensile strength and elongation at break and the reduction of tensile strength after 20 phr of NRL-G mainly for coarser size was due to aggloromation of NRL-G in NBR matrix.
The swelling data were used to calculate the molecular weight between two crosslinks (Mc) by applying the Flory-Rehner equation [10].
The reduction was due to the plasticizer effect of TOR that reduced the viscosity of the compound.
The swelling data were used to calculate the molecular weight between two crosslinks (Mc) by applying the Flory-Rehner equation [10].
The reduction was due to the plasticizer effect of TOR that reduced the viscosity of the compound.
Online since: June 2011
Authors: Zhi Wei Ji, Ling Jun Sun, Hang Jun Wang
And these methods do not effectively highlight the features of key regions, or not effectively eliminate the impact of the noise area, causing a greatly reduction of recognition rate.
The data acquisition is done using MD50 digital micros image system.
Table 2 Comparison of experimental results ( j , k ) Recognition rate (%) Set Ⅰ Set Ⅱ 8,4 97.5 95.8 8,6 95.8 95.8 8,8 95.8 95.8 10,8 95.8 94.2 12,6 95.8 95.0 16,14 95.8 95.0 18,12 95.8 95.8 20,12 97.5 95.8 From Table 2, the recognition rate in Set Ⅱ is not higher than that in SetⅠ.Although three groups’ results are the same, others all have a reduction.
The data acquisition is done using MD50 digital micros image system.
Table 2 Comparison of experimental results ( j , k ) Recognition rate (%) Set Ⅰ Set Ⅱ 8,4 97.5 95.8 8,6 95.8 95.8 8,8 95.8 95.8 10,8 95.8 94.2 12,6 95.8 95.0 16,14 95.8 95.0 18,12 95.8 95.8 20,12 97.5 95.8 From Table 2, the recognition rate in Set Ⅱ is not higher than that in SetⅠ.Although three groups’ results are the same, others all have a reduction.
Online since: November 2011
Authors: Xiang Dong Liu, Feng Wang, Hui Min Liu, Ping Xu
Therefore, the advantage of this technology is obviously shown in producing friction-reduction and wear resistance materials.
The final data of the test is obtained by taking the average value of the results of the three tests.
This in turn, is good for the reduction of the porosity inside the sintering body and the acceleration of the densifying process.
The final data of the test is obtained by taking the average value of the results of the three tests.
This in turn, is good for the reduction of the porosity inside the sintering body and the acceleration of the densifying process.
Online since: January 2012
Authors: Mikael Syväjärvi, Rositza Yakimova, Gabriel Ferro, Masashi Kato, Kęstutis Jarašiūnas, Remigijus Vasiliauskas, Patrik Ščajev, Pavels Onufrijevs, Georgios Manolis, Mindaugas Karaliūnas, Saulius Nargelas, Nikoletta Jegenyes, Jean Lorenzzi, Milena Beshkova
Moreover, reduction of the low injection ambipolar value ma, low = 160 cm2/Vs down to 130 cm2/Vs is due to free carrier caused valence band renormalisation ¶Ev/¶DN [13], described by a realationship ma = ma, low (1 – DN/kT|¶Ev/¶DN|) [14].
In SE-layers, strong impact of compensating defects to carrier scatteering led to diffusion reduction at low injections and extended even to T = 300 K, while at higher injections the mobility increased by order of magnitude (see Fig. 2b).
The ratio R values (according to data in Fig. 2a) are 0.36 and 0.051 for VLS seed and VLS seed + CVD-86 layers, respectively.
In SE-layers, strong impact of compensating defects to carrier scatteering led to diffusion reduction at low injections and extended even to T = 300 K, while at higher injections the mobility increased by order of magnitude (see Fig. 2b).
The ratio R values (according to data in Fig. 2a) are 0.36 and 0.051 for VLS seed and VLS seed + CVD-86 layers, respectively.
Online since: May 2012
Authors: Xuan Jun Wang, Jian Zhang
When the catalyst amount exceeded 2%, there was little improvement in the reduction of acid value of ZSO.
With further increases in temperature there was no reduction in the acid value and the optimum temperature was fixed at 60℃.
Based on the analytical data (Table.2), the higher the value of the standard deviation, the greater the influence of the factor, RB>RA>RD>RC compares the factors influencing esterification [n(methanol):n(ZSO) > w(catalyst) > reaction temperature > reaction time].
With further increases in temperature there was no reduction in the acid value and the optimum temperature was fixed at 60℃.
Based on the analytical data (Table.2), the higher the value of the standard deviation, the greater the influence of the factor, RB>RA>RD>RC compares the factors influencing esterification [n(methanol):n(ZSO) > w(catalyst) > reaction temperature > reaction time].