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Online since: March 2011
Authors: Yu E Ma, Bao Qi Liu, Zhen Qiang Zhao
Finite element analysis was carried out and the result was in good agreement with the experimental data.
It has been demonstrated that when adhesively bonded straps or stingers had been used in box beams there is not crack arrest but a reduction of crack tip stress intensity, DK, that consequently produces a fatigue crack growth retardation effect [4-5].
The Harter T method, where the Walker equation, is used on a point-by-points basis, was used to interpolate the data between the R-ratios which were experimentally determined by equation (6), results shown in Fig.4
It has been demonstrated that when adhesively bonded straps or stingers had been used in box beams there is not crack arrest but a reduction of crack tip stress intensity, DK, that consequently produces a fatigue crack growth retardation effect [4-5].
The Harter T method, where the Walker equation, is used on a point-by-points basis, was used to interpolate the data between the R-ratios which were experimentally determined by equation (6), results shown in Fig.4
Online since: September 2003
Authors: Juris P. Kalejs
A
second set of data further point to microdefect influence on metal impurity gettering.
This data has been used in the modeling studies in the Refs. [14].
Experimental data for the diffusion constant of H in Si, D, vs. temperature.
Other data represent H diffusion in Si with various degrees of trapping (see Ref. [15] for more explanations).
CrB recombination and concentrations also were measured, but this data is not reproduced here.
This data has been used in the modeling studies in the Refs. [14].
Experimental data for the diffusion constant of H in Si, D, vs. temperature.
Other data represent H diffusion in Si with various degrees of trapping (see Ref. [15] for more explanations).
CrB recombination and concentrations also were measured, but this data is not reproduced here.
Online since: March 2025
Authors: Sandra Mayang Dika Ridwan, Muhammad Ihsan Mukrim, Nasaruddin Salam, Rustan Tarakka
The ratios of liquid-solid discharge ratio of 10% to 100% have influences on increasing pressure reduction (∆P).
It is known that the results of the pressure drop in discharge are shown in the data in Table 1.
This data includes various mixtures of clay and water with a percentage of 10 liters to 100 liters.
The data illustrates consistent increasing in fluid flow discharge along with increasing mud mixture percentage, with the lowest value being 10% and the highest value being 100%.
Pressure drop data on changes in density are presented in following Table 3.
It is known that the results of the pressure drop in discharge are shown in the data in Table 1.
This data includes various mixtures of clay and water with a percentage of 10 liters to 100 liters.
The data illustrates consistent increasing in fluid flow discharge along with increasing mud mixture percentage, with the lowest value being 10% and the highest value being 100%.
Pressure drop data on changes in density are presented in following Table 3.
Online since: August 2015
Authors: Khairul Anwar bin Ibrahim, Mau Teng Au, Chin Kim Gan
Distribution system planning involves a set of complex analysis as the amount of data and associated parameters needed for the analysis are huge.
Simplified reference network models (or a generic representative network) would help to reduce the amount of data to be handled, and thereby simplify the complexities of analysis.
Table 1: Data Sets of Real Network from Technical Losses Estimation Software Network Data Load data · Total No of 33 kV Feeders · Total No of 33/11 kV Transformers & Capacity · Total No of 11 kV Feeders · Total No of 11/0.4 kV Transformers & Capacity · Ratio of OH to UG LV Network · Feeder length (L) [km] · Peak demand/feeder · Monthly Incoming Units from Transmission [MWhr] · Peak Demand at Main-In-Take[MW] · Load Factor (LF) · Power Factor (pf) · Composition of Load segments Database of real distribution networks from Table 1 are classified according to its voltage level, geographical locations, load or customer segments, and maturity level.
Simplified reference network models (or a generic representative network) help to reduce the data to be handled, and hence reduce the associated complexities.
The main advantage of the proposed concept lies in the fact that the data are already available in the system and hence could be implemented immediately.
Simplified reference network models (or a generic representative network) would help to reduce the amount of data to be handled, and thereby simplify the complexities of analysis.
Table 1: Data Sets of Real Network from Technical Losses Estimation Software Network Data Load data · Total No of 33 kV Feeders · Total No of 33/11 kV Transformers & Capacity · Total No of 11 kV Feeders · Total No of 11/0.4 kV Transformers & Capacity · Ratio of OH to UG LV Network · Feeder length (L) [km] · Peak demand/feeder · Monthly Incoming Units from Transmission [MWhr] · Peak Demand at Main-In-Take[MW] · Load Factor (LF) · Power Factor (pf) · Composition of Load segments Database of real distribution networks from Table 1 are classified according to its voltage level, geographical locations, load or customer segments, and maturity level.
Simplified reference network models (or a generic representative network) help to reduce the data to be handled, and hence reduce the associated complexities.
The main advantage of the proposed concept lies in the fact that the data are already available in the system and hence could be implemented immediately.
Online since: December 2012
Authors: Hong Xiao, Mei Wu Shi, Guo Liang Dai, Li Li Liu
When the viscosity of PET was 0.54dL/g, the reduction of viscosity difference meant the viscosity of PTT component melt was from high to low.
The potential shrinkage difference between the two components decreased with the reduction of the viscosity difference between the two components, and the potential crimp energy was not significant.
(a)PET/PTT70/30 (b)PET/PTT60/40 (c)PET/PTT50/50 Figure 7 The crimp shapes of the PET/PTT filaments with different weight ratios The effect of weight ratio on the structure.In the different content bicomponent fiber, with reduction of the PTT component concentration, the crystallinity of PTT components increased, and the crystallinity of the PET component reduced.In particular, when the content of PTT components was 30%, its crystallinity increased to 72.04%; but with the content of the component increasing, crystallinity of each single component reduced, and the specific datum were shown in Table 4.
Under the same component and cross-sectional area, the spining tension on the unit mass of component increased because of the reduction of the component content, then strengthened the induced orientation, and the crystallinity increased.
The potential shrinkage difference between the two components decreased with the reduction of the viscosity difference between the two components, and the potential crimp energy was not significant.
(a)PET/PTT70/30 (b)PET/PTT60/40 (c)PET/PTT50/50 Figure 7 The crimp shapes of the PET/PTT filaments with different weight ratios The effect of weight ratio on the structure.In the different content bicomponent fiber, with reduction of the PTT component concentration, the crystallinity of PTT components increased, and the crystallinity of the PET component reduced.In particular, when the content of PTT components was 30%, its crystallinity increased to 72.04%; but with the content of the component increasing, crystallinity of each single component reduced, and the specific datum were shown in Table 4.
Under the same component and cross-sectional area, the spining tension on the unit mass of component increased because of the reduction of the component content, then strengthened the induced orientation, and the crystallinity increased.
Online since: January 2010
Authors: Comondore Ravindran, Lukas Bichler
Application of magnesium alloys potentially plays a key role in weight reduction of
automotive and aerospace components.
Two 0.5 mm diameter stainless steel sheath thermocouple probes connected to a data acquisition unit recorded casting solidification.
The solidification data obtained from casting trials were subsequently used in performing inverse heat transfer analysis to enable computer simulation of the casting process in computer software (MAGMASOFT® ).
Two 0.5 mm diameter stainless steel sheath thermocouple probes connected to a data acquisition unit recorded casting solidification.
The solidification data obtained from casting trials were subsequently used in performing inverse heat transfer analysis to enable computer simulation of the casting process in computer software (MAGMASOFT® ).
Online since: November 2012
Authors: Zhi Gang Ren, Rui Xiong, Chang Wu Xu, Zhean Lu
The test becomes difficult when the diameter of the concrete-filled steel tubular is less than 250mm,as the combination of different media and the reduction of dimension on CFST increase the difficulty degree of detection.
(2)Based on the artificial neural network[7] or WEKA data mining method, we could input the values of the sonic time, frequency, amplitude and velocity as characteristic value, and then calculate out the feature value of each defection,which is more beneficial in practical data processing and the comprehensive judgment of concrete filled steel tube defects through ultrasonic parameters
(2)Based on the artificial neural network[7] or WEKA data mining method, we could input the values of the sonic time, frequency, amplitude and velocity as characteristic value, and then calculate out the feature value of each defection,which is more beneficial in practical data processing and the comprehensive judgment of concrete filled steel tube defects through ultrasonic parameters
Online since: February 2016
Authors: O.V. Ivochkina, Aleksey S. Varlamov, Leonid G. Znamenskij
The developed technology provides the acceleration of the mold manufacturing cycle in 4...6 times, the increase the strength of the mold covers, the reduction in the heat-resistant alloy casting cost.
For that matter it is seemed appropriate to study the structure and physics and mechanical properties of ceramic shells on silica-free binder of the new generation – ABPHC, and on the basis of the obtained data to develop the technology of manufacturing ceramic shell molds, providing high quality of the castings and flexibility with respect to the flooded alloy together with reducing resource-intensive, increasing environmental disposal and reducing the production cycle of manufacturing castings.
The analysis of the given data shows that in the surface layer during the flooding there were no chemical reactions involving dissolving the mold components in the metal volume, as evidenced by the relative stability of the alloy composition in the test zone.
For that matter it is seemed appropriate to study the structure and physics and mechanical properties of ceramic shells on silica-free binder of the new generation – ABPHC, and on the basis of the obtained data to develop the technology of manufacturing ceramic shell molds, providing high quality of the castings and flexibility with respect to the flooded alloy together with reducing resource-intensive, increasing environmental disposal and reducing the production cycle of manufacturing castings.
The analysis of the given data shows that in the surface layer during the flooding there were no chemical reactions involving dissolving the mold components in the metal volume, as evidenced by the relative stability of the alloy composition in the test zone.
Online since: November 2012
Authors: Xin Liao, Chun Ping Liu, Yun Shi, Yan Dong Tang, Fei Wan, Xiang Dong Bai
In this paper, a case study using data observed in the Chuan06 well was presented to analysis, so as to study the influence of the tidal drainage effect on well tide and explore the relation between the tidal hydraulic response and its influencing factors.
The data was been collection for the abnormal research which was concerned with the earthquakes.
The data of water level was splited into 30 days time spans and calculated one by one.
The scatter plot was obtained by using practical data, and the theoretical relation curves under different storativity were obtained by the Hsieh model.
Acknowledgments The work is supported by the Youth Science Fund for Disaster Prevention and Reduction (201001) , the Public Utility Science Foundation of China (200808055) and the Fundamental Research Funds for the Central Universities of China (ZY20110103).
The data was been collection for the abnormal research which was concerned with the earthquakes.
The data of water level was splited into 30 days time spans and calculated one by one.
The scatter plot was obtained by using practical data, and the theoretical relation curves under different storativity were obtained by the Hsieh model.
Acknowledgments The work is supported by the Youth Science Fund for Disaster Prevention and Reduction (201001) , the Public Utility Science Foundation of China (200808055) and the Fundamental Research Funds for the Central Universities of China (ZY20110103).
Online since: July 2011
Authors: Yin Wei Yang, Xu Liu
The data was imported into Matlab and the diagram of the relationship between V and r are made as follows.
Conversely, when filling coefficient is bigger, the corresponding r go smaller, material slip plane is very steep, and the movement along the circumference direction is much more remarkable than that along the transport direction, which will lead to transportation speed reduction and additional energy consumption.
Applying the data in all the equations, we can obtain the screw pitch, rotational speed, making .
Applying the data in Eq. 1, , that means the parameters are reasonable.
We should do experiments as many as possible to obtain more design reference data, and then adjust the parameters according to the actual situation
Conversely, when filling coefficient is bigger, the corresponding r go smaller, material slip plane is very steep, and the movement along the circumference direction is much more remarkable than that along the transport direction, which will lead to transportation speed reduction and additional energy consumption.
Applying the data in all the equations, we can obtain the screw pitch, rotational speed, making .
Applying the data in Eq. 1, , that means the parameters are reasonable.
We should do experiments as many as possible to obtain more design reference data, and then adjust the parameters according to the actual situation