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Online since: January 2020
Authors: Qiu Ying Jia, Wen Ting Sun, Xu Gao, Shuang Xi Liu, Liang Liang Li, Chang Xin Hu
It can be learned from the data in the table that contact angle of pure water on the surface of PES hollow fiber membrane material after CaCO3 particle is added becomes smaller and hydrophilicity of membrane material gets improved, conductive to reducing pollution trend of membrane filament.
It can be seen from the data in the figure that the flux of membrane filament also rises correspondingly but slows down in the growth trend with the increase of DMAc content in the coagulation bath.
It can be learned from the data in the figure that breaking strength of membrane filament has a downtrend with the increase of DMAc content in the coagulation bath.
It can be learned from the data in the figure that maximum pore size of PES hollow fiber membrane increases with the increase of DMAc content in the coagulation bath.
(2) The addition of CaCO3 particle makes contact angle of pure water of membrane filament on the surface become smaller, conducive to reduction of pollution trend of membrane filament
It can be seen from the data in the figure that the flux of membrane filament also rises correspondingly but slows down in the growth trend with the increase of DMAc content in the coagulation bath.
It can be learned from the data in the figure that breaking strength of membrane filament has a downtrend with the increase of DMAc content in the coagulation bath.
It can be learned from the data in the figure that maximum pore size of PES hollow fiber membrane increases with the increase of DMAc content in the coagulation bath.
(2) The addition of CaCO3 particle makes contact angle of pure water of membrane filament on the surface become smaller, conducive to reduction of pollution trend of membrane filament
Online since: January 2021
Authors: Ye Da Lian, Qian Yin, Li Qiang Gao, Zhuang Zhuang Xu, Zhi Xun Wen
The reason is that the increase of temperature and the decrease of strain rate change the slip mode in the fatigue cycle, which leads to the increase of creep damage and the reduction of life.
The test data should be processed in accordance with HB/Z112 or the corresponding fatigue data statistical processing standard to obtain the endurance life of the sample.
The overall data has a certain convergence, the overall gap is not big.
The data was stable.
This results in a reduction in the effective bearing area of the sample, which in turn causes the sample to deform significantly.
The test data should be processed in accordance with HB/Z112 or the corresponding fatigue data statistical processing standard to obtain the endurance life of the sample.
The overall data has a certain convergence, the overall gap is not big.
The data was stable.
This results in a reduction in the effective bearing area of the sample, which in turn causes the sample to deform significantly.
Online since: November 2005
Authors: Jae Boong Choi, Young Jin Kim, Ja Choon Koo, H.S. Kim
Although significant advances
are made in formulation of numerical methods for the reduction of computational burden on the
nonlinear applications, it is still very costly and sometimes prohibitive since high-end hardware such
as supercomputer should be involved.
Introduction of parallel distributed processing to the problems might benefit for the reduction of calculation cost without sacrificing calculation time.
On the other hand, it has advantages such as efficient management of data and simplicity of node extension.
Therefore, data parallelism that is a domain decomposition method of computing the program by using a different area of the same data domain is applied and two subroutines are parallelized as a way of dividing the data matrix in a row direction.
Introduction of parallel distributed processing to the problems might benefit for the reduction of calculation cost without sacrificing calculation time.
On the other hand, it has advantages such as efficient management of data and simplicity of node extension.
Therefore, data parallelism that is a domain decomposition method of computing the program by using a different area of the same data domain is applied and two subroutines are parallelized as a way of dividing the data matrix in a row direction.
Online since: November 2012
Authors: Kianpour Ehsan, Nor Azwadi Che Sidik, Mohsen Agha Seyyed Mirza Bozorg
Also in order to measure the validity of the results, a comparison between the data gained from this study and Vakil and Thole [7] project was made.
(a) (b) Fig. 2 Location of the measurement planes (a) Case 1, (b) Case 2 In order to solve the combustor simulator and getting more accurate data and reasonable time consumption, about 1×106 tetrahedral meshes were used and this is in concurred with Stitzel and Thole study [1].
Continuity equation (1) Momentum equation (2) Energy equation (3) and K-Ɛ equation (4) (5) The difference between the last results with new data is defined by the convergence quantity and this magnitude reduction means access to the more exact data.
Note that with cooling holes reduction, the thickness of film cooling was increased.
(a) (b) Fig. 2 Location of the measurement planes (a) Case 1, (b) Case 2 In order to solve the combustor simulator and getting more accurate data and reasonable time consumption, about 1×106 tetrahedral meshes were used and this is in concurred with Stitzel and Thole study [1].
Continuity equation (1) Momentum equation (2) Energy equation (3) and K-Ɛ equation (4) (5) The difference between the last results with new data is defined by the convergence quantity and this magnitude reduction means access to the more exact data.
Note that with cooling holes reduction, the thickness of film cooling was increased.
Online since: January 2015
Authors: Michał Majzner, Andrzej Baier
Features enrich the product data representation with semantic information, which allows more efficient and direct communication between engineering processes.
A lot of industrial problems concern the exchange of information not only between different types of software, but also between different processes, which are still not functional data exchange system based on a homogeneous system [1, 2, 3].
The general definition of feature describes the object as the unit of elementary charge, which stores the data, creates a network for the exchange of information, performs a service, thus realizing the overall goals of the system.
According to the data sheet, the wagon, is divided into 10 compartments where eight passengers are located in each.
The use of composite materials, especially layered fiber composites enables significant reduction in weight of coverage, with a slight increase in the impact load on the strain and stress in the structure of the object.
A lot of industrial problems concern the exchange of information not only between different types of software, but also between different processes, which are still not functional data exchange system based on a homogeneous system [1, 2, 3].
The general definition of feature describes the object as the unit of elementary charge, which stores the data, creates a network for the exchange of information, performs a service, thus realizing the overall goals of the system.
According to the data sheet, the wagon, is divided into 10 compartments where eight passengers are located in each.
The use of composite materials, especially layered fiber composites enables significant reduction in weight of coverage, with a slight increase in the impact load on the strain and stress in the structure of the object.
Online since: June 2014
Authors: Meng Song, De Lin Tang, Xianghua Liu
The rate of dislocation reduction was more than dislocation multiplication due to disappear at grain size, when the thickness of ultra-thin strip decreased to an extremely value.
The datas were collected by computer.
Zhang[14] studied the rollling texture of high pure copper with 30%~90% reduction, found that with increasing cold rolling reduction increasing , B components on α orientations lines increase significantly, the S components on β orientations lines are in majority, the orientation density is around 16.
The datas were collected by computer.
Zhang[14] studied the rollling texture of high pure copper with 30%~90% reduction, found that with increasing cold rolling reduction increasing , B components on α orientations lines increase significantly, the S components on β orientations lines are in majority, the orientation density is around 16.
Online since: December 2011
Authors: Xin Chong Luo, Ying Kui Gu, Yao Gang Xiong
Fuzzy matrixes were constructed according to the investigation data, in which occurrence probability ranking, effect severity ranking and detection difficulty ranking are all weighted analyzed.
Because of lack of relevant data of severity of fault mode of diesel engine in the process of computation, the results have some subjectivity and fuzziness [2].
Table 1 Fuzzy factors grade Factor grade Influence factor I1 I2 I3 I4 I5 Frequency of fault occurrence u1 Often occur Sometimes occur Accidentally occur Infrequence Occur Rare occur Influence severity u2 Fatal Consequence Loss of important function Function reduction Slight influence Rarely influence Difficult degree of test u3 Completely unable to test No test Observe in the test Observe in the previous test Directly observe The highest level of weighting set of each factor can be obtained by the method above, is the probability, severe degree and the weight set of no detectable respectively.
Because of lack of relevant data of severity of fault mode of diesel engine in the process of computation, the results have some subjectivity and fuzziness [2].
Table 1 Fuzzy factors grade Factor grade Influence factor I1 I2 I3 I4 I5 Frequency of fault occurrence u1 Often occur Sometimes occur Accidentally occur Infrequence Occur Rare occur Influence severity u2 Fatal Consequence Loss of important function Function reduction Slight influence Rarely influence Difficult degree of test u3 Completely unable to test No test Observe in the test Observe in the previous test Directly observe The highest level of weighting set of each factor can be obtained by the method above, is the probability, severe degree and the weight set of no detectable respectively.
Online since: July 2014
Authors: Xiu Hua Li, Chen Xi Yue, Chun Qing Hu, Yan Yan Gao
GFRP bars and PC strand composite pile is a new supporting piles, according to the engineering field test and analysis of experimental data prove that there is a significant effect on the control aspects of the horizontal displacement of supporting piles.
Test data processing.
According to the experimental data obtained pit displacement drawn through the measured data shown in Figure 3.
After analysis, the true and reliable experimental data, through PC strand tensioning graded approach is applied to the control pit displacement effect is obvious, GFRP bars and PC strand combination supporting piles experiment was successful basically successful, can be used for further study.
By substituting the data and calculated: lateral reinforcement piles under normal circumstances occurred to 17cm, the maximum rear sway prestressed piles happen to 12cm, can be seen through the GFRP bars and prestressing strand combination of technology, the amount of horizontal displacement pile excavation reduction compared to ordinary reinforcement in the case of about 30%, and with the increasing depth of the excavation carried out repeatedly applied prestressing, the lateral row of piles will decrease to some extent.
Test data processing.
According to the experimental data obtained pit displacement drawn through the measured data shown in Figure 3.
After analysis, the true and reliable experimental data, through PC strand tensioning graded approach is applied to the control pit displacement effect is obvious, GFRP bars and PC strand combination supporting piles experiment was successful basically successful, can be used for further study.
By substituting the data and calculated: lateral reinforcement piles under normal circumstances occurred to 17cm, the maximum rear sway prestressed piles happen to 12cm, can be seen through the GFRP bars and prestressing strand combination of technology, the amount of horizontal displacement pile excavation reduction compared to ordinary reinforcement in the case of about 30%, and with the increasing depth of the excavation carried out repeatedly applied prestressing, the lateral row of piles will decrease to some extent.
Online since: February 2015
Authors: Ming Chao Xia, Wei Wang, Le Ting Lin, Bei Min Xie, Ping Zhu Liu, Wei Ma, Wan Qing Li
The analyzing computer can accomplish the missions of data acquisition control, data analysis and the historical data query.
The driver for acquisition card is written in Labview2013. 3.2 Software introduction Fig.2 System operation interface There is a human-computer interaction interface, which is divided into three parts: data acquisition, data analysis and data query, shown in Figure 2. 3.2.1 Data collection Fig.4 Multi-channel acquisition signal respectively Fig.3 Data acquisition card selection In the part of data acquisition, the program drives vibration acceleration acquisition card to collect data, and transformer body vibration can be displayed on a computer monitor in real time.
If the substation location and time corresponding to the data are recorded in the computer, the system will store these keywords into the database, which is connected to the system, for subsequent storage and query. 3.2.2 Data query Data query function can call out data that has been entered in the computer.
Figure 5 shows the historical data query function.
Fig.5 Historical data query 3.2.3 Data analysis In the data analysis module, the system extracts eigenvalues from raw data and stores them in the new files.
The driver for acquisition card is written in Labview2013. 3.2 Software introduction Fig.2 System operation interface There is a human-computer interaction interface, which is divided into three parts: data acquisition, data analysis and data query, shown in Figure 2. 3.2.1 Data collection Fig.4 Multi-channel acquisition signal respectively Fig.3 Data acquisition card selection In the part of data acquisition, the program drives vibration acceleration acquisition card to collect data, and transformer body vibration can be displayed on a computer monitor in real time.
If the substation location and time corresponding to the data are recorded in the computer, the system will store these keywords into the database, which is connected to the system, for subsequent storage and query. 3.2.2 Data query Data query function can call out data that has been entered in the computer.
Figure 5 shows the historical data query function.
Fig.5 Historical data query 3.2.3 Data analysis In the data analysis module, the system extracts eigenvalues from raw data and stores them in the new files.
Online since: November 2015
Authors: Hong Ying Yang, Guo Bao Chen, Hai Jun Li
The reaction mechanism was proposed based on experimental data analysis.
The noise resistance Rsn (f) was obtained by elimination of ECN data at the higher frequencies resulting in lower fmax values while maintaining fmin.
Results and discussion Noise data were analysed into the frequency domain using FFT algorithm and identified as the power spectral density.
Analysis of electrochemical noise data in the frequency domain of pyrite anodes in various leaching solutions gives three PSD plots presented in Fig. 1.
Electrochemical noise data calculated in the frequency domain for pyrite exposed to different medium at initial stage.
The noise resistance Rsn (f) was obtained by elimination of ECN data at the higher frequencies resulting in lower fmax values while maintaining fmin.
Results and discussion Noise data were analysed into the frequency domain using FFT algorithm and identified as the power spectral density.
Analysis of electrochemical noise data in the frequency domain of pyrite anodes in various leaching solutions gives three PSD plots presented in Fig. 1.
Electrochemical noise data calculated in the frequency domain for pyrite exposed to different medium at initial stage.