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Online since: August 2013
Authors: Xiu Jie Qu, Fu Zhang, Ying Zhang
Also, it makes an evaluation and analysis to the experimental data, and finally obtains the desired results.
Through making an analysis and evaluation of the experimental data, we have achieved the desired results.
The extraction steps of the canny operator are as follow: a) Noise reduction: The image after a Gaussian mask has been passed across each pixel.
Because the Canny edge detector is susceptible to noise present in raw unprocessed image data, it uses a filter based on a Gaussian, where the raw image is convolved with a Gaussian filter.
Through making an analysis and evaluation of the experimental data, we have achieved the desired results.
The extraction steps of the canny operator are as follow: a) Noise reduction: The image after a Gaussian mask has been passed across each pixel.
Because the Canny edge detector is susceptible to noise present in raw unprocessed image data, it uses a filter based on a Gaussian, where the raw image is convolved with a Gaussian filter.
Online since: September 2016
Authors: Martin Schagerl, Lukas Retschitzegger, Adi Adumitroaie, Susanne Hörrmann
Good agreement is found between simulation results and experimental data.
Weight reduction and simultaneously increasing the safety of the structure is among the most demanding design burdens.
Figure 1: a) FE model of a specimen with fiber waviness and propagated cracks, b) Force-displacement response of experimental data and simulation, including crack initiation points Conclusion The standard implementation of XFEM within Abaqus was used to model crack initiation and propagation in a FRP specimen.
Successful application of this method for quasi-static compressive loading was shown through qualitative and quantitative comparison with experimental data.
Weight reduction and simultaneously increasing the safety of the structure is among the most demanding design burdens.
Figure 1: a) FE model of a specimen with fiber waviness and propagated cracks, b) Force-displacement response of experimental data and simulation, including crack initiation points Conclusion The standard implementation of XFEM within Abaqus was used to model crack initiation and propagation in a FRP specimen.
Successful application of this method for quasi-static compressive loading was shown through qualitative and quantitative comparison with experimental data.
Online since: July 2013
Authors: M. Beghini, L. Bertini, L. Bosio, V. Fontanari, B.D. Monelli
Accuracy in the experimental data acquisition and in the L-h curve representation were recognized to be the key factors for reliable and accurate estimations.
Many advantages can be mentioned if the industrial processes are aided by prompt and online feedbacks about the materials key properties, thus entailing R&D costs reductions and manufacturing process optimization.
On the basis of the presented background, a new integrated tool consisting of a testing machine, denominated Diaptometro [7], and of an algorithm for the experimental data analysis and material identification from shallow spherical indentation tests was built-up.
The system is built-up by a load cell coaxial with the indentation unit, and by a 16-bit data acquisition/control unit.
Many advantages can be mentioned if the industrial processes are aided by prompt and online feedbacks about the materials key properties, thus entailing R&D costs reductions and manufacturing process optimization.
On the basis of the presented background, a new integrated tool consisting of a testing machine, denominated Diaptometro [7], and of an algorithm for the experimental data analysis and material identification from shallow spherical indentation tests was built-up.
The system is built-up by a load cell coaxial with the indentation unit, and by a 16-bit data acquisition/control unit.
Online since: May 2014
Authors: Ilana B. Timokhina, Hossein Beladi, Vadim Shterner
The mechanical properties were determined using Instron tensile testing machine with 30kN load cell and strain rate of 10-3s-1 and the work hardening behaviour curves were generated using true stress and true strain data.
Although the data on the formation of mechanical twins had been reported and it is self-evident, the effect of deformation temperature on the formation of mechanical twinning and its influence on the work hardening behaviour has not been fully investigated.
The strain and stress data was monitored using a video extensometer and the work hardening behaviour curves were generated using the true stress and true strain data.
Furthermore, the work hardening behaviour at 300oC and 400oC displayed similar behaviour to the materials with moderate to high SFE, showing a continuously reduction in the work hardening behaviour.
Although the data on the formation of mechanical twins had been reported and it is self-evident, the effect of deformation temperature on the formation of mechanical twinning and its influence on the work hardening behaviour has not been fully investigated.
The strain and stress data was monitored using a video extensometer and the work hardening behaviour curves were generated using the true stress and true strain data.
Furthermore, the work hardening behaviour at 300oC and 400oC displayed similar behaviour to the materials with moderate to high SFE, showing a continuously reduction in the work hardening behaviour.
Online since: September 2024
Authors: Ľuboslav Straka
Therefore, experimental research was carried out, the aim of which was to obtain relevant data regarding the quantification of qualitative indicators of the machined surface during the machining of hard metals through progressive electrical discharge technology in relation to the overall economic efficiency of the machining process.
As part of the conducted experimental research, partial data of individual elements were obtained on the basis of which complex conclusions were drawn in mutual contexts.
Subsequently, complex data regarding the effectiveness of the applied electrical discharge process in the machining of hard metals were summarized.
A positive of this suitable choice can also be a reduction in the wear of the wire tool electrode, which will be reflected in a higher degree of efficiency of the electroerosive process.
This results in a reduction of the cutting speed and the associated deterioration of the overall performance of EDM.
As part of the conducted experimental research, partial data of individual elements were obtained on the basis of which complex conclusions were drawn in mutual contexts.
Subsequently, complex data regarding the effectiveness of the applied electrical discharge process in the machining of hard metals were summarized.
A positive of this suitable choice can also be a reduction in the wear of the wire tool electrode, which will be reflected in a higher degree of efficiency of the electroerosive process.
This results in a reduction of the cutting speed and the associated deterioration of the overall performance of EDM.
Online since: October 2014
Authors: Zheng Guo Chen, Nong Xiao, Fang Liu, Yu Xuan Xing, Zhen Sun
And it is reported that in the current data centers, more than 80% of the data stored were redundant, adding nearly 10 times cost of non-redundant data to process [2], posing an urgent need for data deduplication, which could eliminate duplicated data and improve the storage space utilization.
Deduplication is an effective method of data compression.
Thirdly, with the reduction of write traffic and the times of garbage collection, the time of erasing Flash memory decreases, resulting in longer lifespan and better reliability of SSD, because it is known to all that the more the write data is, the shorter the lifespan and the higher the bit error rate is.
In addition, read performance keeps steady, since the process of reading data does not change.
Swanson, “Rethinking flash in the data center,” IEEE Micro, vol. 30, no. 4, pp. 52–54, Jul.2010
Deduplication is an effective method of data compression.
Thirdly, with the reduction of write traffic and the times of garbage collection, the time of erasing Flash memory decreases, resulting in longer lifespan and better reliability of SSD, because it is known to all that the more the write data is, the shorter the lifespan and the higher the bit error rate is.
In addition, read performance keeps steady, since the process of reading data does not change.
Swanson, “Rethinking flash in the data center,” IEEE Micro, vol. 30, no. 4, pp. 52–54, Jul.2010
Online since: September 2011
Authors: Xiao Hong Zhu
Dimension reduction of variables is original variables after the linear combination, and can represent the original variables, make the information loss of original variables loss least and comprehensive explanation strong [5].
This paper uses typical survey methods, selects 13 representative universities as the research object, and collects various relevant data in 2008, as shown in table 2.
Data processing results listed in table 3 and table 4.
X31 X32 X33 1 2 3 4 5 6 7 8 9 10 11 12 13 2623 1274 2098 1365 974 2290 878 1982 644 1902 1115 1936 579 2943 1090 2824 1532 1341 2781 899 1613 528 2431 1250 2872 1146 13578 2845 6903 3749 2217 4970 1922 5458 1369 5827 3418 4792 1965 338734 245253 503869 261477 265845 703582 217680 434678 92416 486872 437178 416989 136112 1024398 652648 1897885 807931 559628 1180956 418879 948472 257809 1443241 865878 1159478 390839 94798 20728 72174 64802 37089 74085 25419 35381 22406 45725 33870 31569 15618 86204 78343 113438 67407 27052 127084 29897 67119 16887 82703 132772 80032 29886 872 473 649 630 428 675 388 572 101 691 582 601 379 131382 42444 106376 69822 58878 92638 43872 71011 23176 93472 68262 46318 20482 27862 10537 8470 16287 11858 30519 6807 7028 5147 10029 15062 10067 4308 30052 7743 43069 10072 28142 10087 9236 8834 7167 20147 14386 17113 13264 Data
This paper uses R software to make data clustering analysis.
This paper uses typical survey methods, selects 13 representative universities as the research object, and collects various relevant data in 2008, as shown in table 2.
Data processing results listed in table 3 and table 4.
X31 X32 X33 1 2 3 4 5 6 7 8 9 10 11 12 13 2623 1274 2098 1365 974 2290 878 1982 644 1902 1115 1936 579 2943 1090 2824 1532 1341 2781 899 1613 528 2431 1250 2872 1146 13578 2845 6903 3749 2217 4970 1922 5458 1369 5827 3418 4792 1965 338734 245253 503869 261477 265845 703582 217680 434678 92416 486872 437178 416989 136112 1024398 652648 1897885 807931 559628 1180956 418879 948472 257809 1443241 865878 1159478 390839 94798 20728 72174 64802 37089 74085 25419 35381 22406 45725 33870 31569 15618 86204 78343 113438 67407 27052 127084 29897 67119 16887 82703 132772 80032 29886 872 473 649 630 428 675 388 572 101 691 582 601 379 131382 42444 106376 69822 58878 92638 43872 71011 23176 93472 68262 46318 20482 27862 10537 8470 16287 11858 30519 6807 7028 5147 10029 15062 10067 4308 30052 7743 43069 10072 28142 10087 9236 8834 7167 20147 14386 17113 13264 Data
This paper uses R software to make data clustering analysis.
Online since: August 2013
Authors: Min Zeng
Ø consideration of modeling unit
Because of our premise is making large-scale scene, so the model is built based on the accurately data.
These data generally based on "m" for the unit, and we should change the system unit to "cm" before modeling.
The so-called examples cited refers to multiple father node reference with the same instantiated (contain geometric data) node.
During the actual use, we can copy node but the actual geometry data is shared [5].
Ø The use of LOD technology In the condition that does not affect the image visual effect, LOD technology reduce the complexity of the geometry of the scene by the successive reduction scenery surface details, and improve the efficiency of the algorithm of drawing.
These data generally based on "m" for the unit, and we should change the system unit to "cm" before modeling.
The so-called examples cited refers to multiple father node reference with the same instantiated (contain geometric data) node.
During the actual use, we can copy node but the actual geometry data is shared [5].
Ø The use of LOD technology In the condition that does not affect the image visual effect, LOD technology reduce the complexity of the geometry of the scene by the successive reduction scenery surface details, and improve the efficiency of the algorithm of drawing.
Online since: September 2014
Authors: Guo Qiang Cai, Hui Zhen
Because of the complexity, studying deficiency and lacking of the research data of the emergency system,there are few of the research achievements in the construction of the subway emergency system.
With the rapid development of our country urban subway, the Metro emergency rescue becomes more and more important in disaster reduction and prevention of the city.
The complete matrix’s settings are similar to task assignment matrix, but all the initial data are zero.
The system will compare the data of task assignment matrix and complete matrix within a predetermined time.
If the two matrices’ corresponding location data are equal, indicating the task has been completed, otherwise supervise urges the participants to complete the task as soon as possible or dispatch somebody to assist the participant who have difficulty in completing the task.
With the rapid development of our country urban subway, the Metro emergency rescue becomes more and more important in disaster reduction and prevention of the city.
The complete matrix’s settings are similar to task assignment matrix, but all the initial data are zero.
The system will compare the data of task assignment matrix and complete matrix within a predetermined time.
If the two matrices’ corresponding location data are equal, indicating the task has been completed, otherwise supervise urges the participants to complete the task as soon as possible or dispatch somebody to assist the participant who have difficulty in completing the task.
Online since: March 2012
Authors: Hong Shuang Zhang
Typically, there are six main stages within a fixture design process—data input, setup planning, fixture planning, fixture unit design, verification and data output, as Figure.2 illustrates. [9]
Fig.2.
The fixture design process in CAFD The first stage of data input includes CAD model of workpieces, machining information and design requirement etc required by processing with PFV.
The fixture design also has to be verified to ensure that it meets other design considerations that may include fixture cost, fixture weight, assembly time, and loading or unloading time of both the workpieces and fixture units The final stage of data output includes finished fixture setup, the information of fixture design process and units listing etc.
Reconfigurable Pin-Type Tooling: A Survey of Prior Art and Reduction to Practice.
The fixture design process in CAFD The first stage of data input includes CAD model of workpieces, machining information and design requirement etc required by processing with PFV.
The fixture design also has to be verified to ensure that it meets other design considerations that may include fixture cost, fixture weight, assembly time, and loading or unloading time of both the workpieces and fixture units The final stage of data output includes finished fixture setup, the information of fixture design process and units listing etc.
Reconfigurable Pin-Type Tooling: A Survey of Prior Art and Reduction to Practice.