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Online since: December 2013
Authors: Hong Xu, Wei Wei Zhang, Karl Maile
And two life prediction methods are used to correlate the present creep-fatigue life data.
It is shown that a significant reduction in fatigue life is observed with hold time in tension, and it is also observed that 1CrMoV steel exhibits a higher creep-fatigue life than 2CrMoNiVW when strain hold time is 16 hours, and 2CrMoNiVW seems to be more sensitive to hold time influence.
Life reduction under creep-fatigue interaction is reported to be mainly due to the creep mechanisms of stress relaxation, which are the same as that of the general monotonic creep after a long enough hold time[8].
(1) can be used to correlate the fatigue data with hold time, where Δεp is the total strain, Nc is cycle to crack, and A, B are constants.
Finally, two life prediction methods are used to correlate the present creep-fatigue life data.
It is shown that a significant reduction in fatigue life is observed with hold time in tension, and it is also observed that 1CrMoV steel exhibits a higher creep-fatigue life than 2CrMoNiVW when strain hold time is 16 hours, and 2CrMoNiVW seems to be more sensitive to hold time influence.
Life reduction under creep-fatigue interaction is reported to be mainly due to the creep mechanisms of stress relaxation, which are the same as that of the general monotonic creep after a long enough hold time[8].
(1) can be used to correlate the fatigue data with hold time, where Δεp is the total strain, Nc is cycle to crack, and A, B are constants.
Finally, two life prediction methods are used to correlate the present creep-fatigue life data.
Online since: May 2017
Authors: Tatsuya Masuda, Hiroshi Osawa, Daisuke Muto, Kenji Momose, Yuichiro Mabuchi
Investigation of Carrot Reduction Effect on 4H-Silicon Carbide Epitaxial Wafers with Optimized Buffer Layer
Y.
We investigated the carrot-defect reduction effect by optimizing the buffer layers of 4H-Silion Carbide(SiC) epitaxial wafers.
These data imply that the initial SiC epitaxial growth condition plays important roles in determining the dislocation-to-carrot conversion ratio and lengthening of the bunching.
Therefore, it might be the key requirement to control the initial epitaxial condition for the carrot-defects reduction.
The graph shows the thicker initial optimized condition buffer layer has the more significant carrot reduction effect.
We investigated the carrot-defect reduction effect by optimizing the buffer layers of 4H-Silion Carbide(SiC) epitaxial wafers.
These data imply that the initial SiC epitaxial growth condition plays important roles in determining the dislocation-to-carrot conversion ratio and lengthening of the bunching.
Therefore, it might be the key requirement to control the initial epitaxial condition for the carrot-defects reduction.
The graph shows the thicker initial optimized condition buffer layer has the more significant carrot reduction effect.
Online since: September 2013
Authors: Teruyuki Fukuhara, Chao He, Yang Wang, Yi Bin Chen
In order to discuss the effect of energy saving of heat-reflective insulation coating on exterior walls of building, the wall temperature change of two test rooms with heat insulation or not in Hangzhou has been monitored in summer, and the heat flux data of east, south and west walls were analyzed.
The experiment is carried out in Hangzhou in summer, and conducted by monitoring the indoor and exterior wall temperature of buildings with and without reflective coatings comparatively and analyzing the acquired temperature data.
All the temperatures are measured and recorded every five minutes automatically by Agilent data acquisition system.
For the convenience of analysis, only representative temperature data for one-month period from August 1st to August 30th are analyzed in this paper, which is collected from building envelope.
Furthermore, since the roof temperature and the northern wall temperature of 1# and 2# buildings are very close, the data is omitted in the analysis.
The experiment is carried out in Hangzhou in summer, and conducted by monitoring the indoor and exterior wall temperature of buildings with and without reflective coatings comparatively and analyzing the acquired temperature data.
All the temperatures are measured and recorded every five minutes automatically by Agilent data acquisition system.
For the convenience of analysis, only representative temperature data for one-month period from August 1st to August 30th are analyzed in this paper, which is collected from building envelope.
Furthermore, since the roof temperature and the northern wall temperature of 1# and 2# buildings are very close, the data is omitted in the analysis.
Online since: July 2022
Authors: Werner Homberg, Frank Walther, Lukas Kersting, Ansgar Trächtler, Bahman Arian, Julian Rozo Vasquez
In preliminary tests, an average data rate of 18 measurements per second was determined with above named setup.
(5) The characteristic curve is parameterized with experimental data presented in [15].
Outside this range of f, Δr and w, the experimental data is extrapolated.
The equation is parameterized with experimental data presented in [15].
The data results from the same experiments as used for Eq. 5 in this paper.
(5) The characteristic curve is parameterized with experimental data presented in [15].
Outside this range of f, Δr and w, the experimental data is extrapolated.
The equation is parameterized with experimental data presented in [15].
The data results from the same experiments as used for Eq. 5 in this paper.
Online since: February 2013
Authors: Sang Tae No, Jae Yeob Kim
The actual energy usages were compared to loads of simulation data to verify simulation accuracy and real data and simulation result showed good match.
/h) 0.7 1 1.5 2 * bl : Blue layer, a: Air layer, cl : Opaque glass, ar : Argon gas, loe : Low-e glass Evaluations It was decreased by 20%~100% on east, west, and south directions, except for north, and the data was eventually compared following reduction of window-wall ratio.
There was no significant reduction in east direction.
This study analyzed a comparison data of heating and cooling energy per window composition and product specifications of ‘Hanglas’ was used as a standard. 6bl-6a-6bl as a basic model, 8bl-6a-8cl had the most reduction in cooling load, by 17.16%, and 6bl-12a-6loe had the greatest reduction in heating load, which was 9.38%.
Hence, it was found that reduction of window area was practical.
/h) 0.7 1 1.5 2 * bl : Blue layer, a: Air layer, cl : Opaque glass, ar : Argon gas, loe : Low-e glass Evaluations It was decreased by 20%~100% on east, west, and south directions, except for north, and the data was eventually compared following reduction of window-wall ratio.
There was no significant reduction in east direction.
This study analyzed a comparison data of heating and cooling energy per window composition and product specifications of ‘Hanglas’ was used as a standard. 6bl-6a-6bl as a basic model, 8bl-6a-8cl had the most reduction in cooling load, by 17.16%, and 6bl-12a-6loe had the greatest reduction in heating load, which was 9.38%.
Hence, it was found that reduction of window area was practical.
Online since: September 2007
Authors: Heiner Ryssel, Anton J. Bauer, Martin Rambach
The influence of the implantation temperature on
the resistivity was identified by modeling temperature dependent resistivity data.
To get a better understanding of the influence of the high temperature implantation on the resistivity, the measured data are fitted with a resistivity model.
Expressions for p(T) and µ(T) have to be found in order to model the measured resistivity data.
The modeled data coincides with the measured temperature dependent resistivity for all analyzed implantation temperatures.
The calculated data are shown in Fig. 3 for implantation temperatures between RT and 1000°C.
To get a better understanding of the influence of the high temperature implantation on the resistivity, the measured data are fitted with a resistivity model.
Expressions for p(T) and µ(T) have to be found in order to model the measured resistivity data.
The modeled data coincides with the measured temperature dependent resistivity for all analyzed implantation temperatures.
The calculated data are shown in Fig. 3 for implantation temperatures between RT and 1000°C.
Online since: May 2012
Authors: Hsien Te Lin, Teow Ngak Ng
The data was recorded concurrently every 5 minutes.
Comparison of Interior Temperature in Zinc-Roof House and Palm-Roof House We chose three related data – exterior temperature, interior temperature of zinc-roof house, and interior temperature of palm- roof house ( Fig. 6) We know the heat transmission of zinc roof is a lot higher than that of the palm-roof so the changes in interior temperature under a zinc roof are a lot more obviously and drastically.
Fig. 7 Comparison of relative humidity under zinc roof, palm- roof and outdoor Conclusion The result of this research proves that the palm-roof comes with better temperature prevention and humidity reduction.
It has absolutely no effect on humidity reduction and damp-proof. 3.
Therefore, it is evident that the palm-roof is effective in both warmth preservation and damp-proof humidity reduction.
Comparison of Interior Temperature in Zinc-Roof House and Palm-Roof House We chose three related data – exterior temperature, interior temperature of zinc-roof house, and interior temperature of palm- roof house ( Fig. 6) We know the heat transmission of zinc roof is a lot higher than that of the palm-roof so the changes in interior temperature under a zinc roof are a lot more obviously and drastically.
Fig. 7 Comparison of relative humidity under zinc roof, palm- roof and outdoor Conclusion The result of this research proves that the palm-roof comes with better temperature prevention and humidity reduction.
It has absolutely no effect on humidity reduction and damp-proof. 3.
Therefore, it is evident that the palm-roof is effective in both warmth preservation and damp-proof humidity reduction.
Online since: October 2011
Authors: Chun An Ma, Nan Nan You, Li Mei Chao
Electrochemical reduction of 2,4-DCBA.
To acquire in situ FTIR data, two hundred interferograms were collected at each potential at a resolution 8 cm-1.
Another reduction peak was observed clearly in the negative-going potential scan at around -0.9 V.
The two reduction peaks were assigned to electrochemical reduction of 2,4-DCBA on Pd/Ti electrode.
On the basis of in situ FTIR data, electrochemical hydrodehalogenation reaction of 2,4-DCBA on Pd/Ti electrode might be represented as a sequence of electron additions and chlorine expulsions.
To acquire in situ FTIR data, two hundred interferograms were collected at each potential at a resolution 8 cm-1.
Another reduction peak was observed clearly in the negative-going potential scan at around -0.9 V.
The two reduction peaks were assigned to electrochemical reduction of 2,4-DCBA on Pd/Ti electrode.
On the basis of in situ FTIR data, electrochemical hydrodehalogenation reaction of 2,4-DCBA on Pd/Ti electrode might be represented as a sequence of electron additions and chlorine expulsions.
Online since: May 2012
Authors: Xiao Guo Bi, Xu Dong Liu, Wei Niu, Ying Nan Dong
Ltd. coupled to a PC, and the system was controlled and data recorded using the CorrTest software package.
On the scan towards more negative potentials, a reduction wave is observed at Epc -438 mV.
When and , the equation 2 is approximated to express as (3) There is a linear relationship between the net cathode current density and overpotential, and the ratio of overpotential and net cathode current density is charge transfer resistance Rct, that is (4) According to the test data of cathode polarization curves of graphite felt electrode in electrolyte with soluble lead(II), Fig. 2 showed that the linear relationship between net cathode current density and overpotential.
The oxidation and reduction peak potentials were basically unchanged with the increase of cycle number, and the oxidation and reduction peak potentials were 55 mV and 440 mV, respectively.
(2) The oxidation and reduction peak potentials were basically unchanged with the increase of cycle number, and the oxidation and reduction peak potentials were 55 mV and 440 mV, respectively.
On the scan towards more negative potentials, a reduction wave is observed at Epc -438 mV.
When and , the equation 2 is approximated to express as (3) There is a linear relationship between the net cathode current density and overpotential, and the ratio of overpotential and net cathode current density is charge transfer resistance Rct, that is (4) According to the test data of cathode polarization curves of graphite felt electrode in electrolyte with soluble lead(II), Fig. 2 showed that the linear relationship between net cathode current density and overpotential.
The oxidation and reduction peak potentials were basically unchanged with the increase of cycle number, and the oxidation and reduction peak potentials were 55 mV and 440 mV, respectively.
(2) The oxidation and reduction peak potentials were basically unchanged with the increase of cycle number, and the oxidation and reduction peak potentials were 55 mV and 440 mV, respectively.
Online since: October 2015
Authors: Tawatchai Charinpanitkul, Suttichai Assabumrungrat, Kreangkrai Maneeintr, Pimon Iamareerat, Poomsup Manonukul
For petroleum industries, CO2 can cause corrosion, and heating-value reduction.
Therefore, the objective of this work is to measure the solubility data of CO2 in a 5M aqueous solution of 2-MAE as a promising solvent at the temperature from 30 °C to 80 °C and CO2 partial pressures ranging from 5 to 100 kPa.
Therefore, the objective of this work is to measure the solubility data of CO2 in a 5M aqueous solution of 2-MAE as a promising solvent at the temperature from 30 °C to 80 °C and CO2 partial pressures ranging from 5 to 100 kPa and to compare the results with those of aqueous solution of MEA.
Thus, the data from this equipment and procedure is reliable enough for the next experiments.
Li, Solubility of carbon dioxide in aqueous mixtures of monoethanolamine with methyldiethanolamine, Journal of Chemical and Engineering Data, 37 (1992) 96-100
Therefore, the objective of this work is to measure the solubility data of CO2 in a 5M aqueous solution of 2-MAE as a promising solvent at the temperature from 30 °C to 80 °C and CO2 partial pressures ranging from 5 to 100 kPa.
Therefore, the objective of this work is to measure the solubility data of CO2 in a 5M aqueous solution of 2-MAE as a promising solvent at the temperature from 30 °C to 80 °C and CO2 partial pressures ranging from 5 to 100 kPa and to compare the results with those of aqueous solution of MEA.
Thus, the data from this equipment and procedure is reliable enough for the next experiments.
Li, Solubility of carbon dioxide in aqueous mixtures of monoethanolamine with methyldiethanolamine, Journal of Chemical and Engineering Data, 37 (1992) 96-100