With the popularity of multi-core and many-core platform, multi-core-oriented parallel programming and optimization has become a research hotspot in computer field. However, the vast majority of programmers are still continuing the traditional serial programming habits. Meanwhile, the mainstream algorithms are still in serial. Therefore, how to parallelize the serial programs effectively and write the multi-core programs efficiently is becoming an urgent problem in the field of multi-core programming. In this paper, the optimization of the heap sort algorithm has been achieved adopting the parallel technology based on openMP. Firstly, based on the hypercube model, the heap data to be sorted are divided into n (n is the computer thread amount) blocks called sub-heap which will be sorted respectively. Thus, the scale of the problem is decomposed into 1/n, secondly, the sorted sub-heaps will be merged using merge sort algorithm, finally, the parallel optimized heap sort algorithm is compared to the traditional heap sort algorithm. When the data quantity comes up to ten million bytes, the execution efficiency of the optimized parallel heap sort algorithm of this paper is improved significantly compared with the traditional serial heap sort algorithm on the experimental computer. Furthermore, the efficiency gap between the two algorithms will be intensified prominently with the increasing data quantity.
{"title":"Parallel Optimization Strategy of Heap Sort Algorithm under Multi-core Environment","authors":"Wei Zhenhua, L. Zhifeng, Li Guoliang","doi":"10.1109/ICMTMA.2015.190","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.190","url":null,"abstract":"With the popularity of multi-core and many-core platform, multi-core-oriented parallel programming and optimization has become a research hotspot in computer field. However, the vast majority of programmers are still continuing the traditional serial programming habits. Meanwhile, the mainstream algorithms are still in serial. Therefore, how to parallelize the serial programs effectively and write the multi-core programs efficiently is becoming an urgent problem in the field of multi-core programming. In this paper, the optimization of the heap sort algorithm has been achieved adopting the parallel technology based on openMP. Firstly, based on the hypercube model, the heap data to be sorted are divided into n (n is the computer thread amount) blocks called sub-heap which will be sorted respectively. Thus, the scale of the problem is decomposed into 1/n, secondly, the sorted sub-heaps will be merged using merge sort algorithm, finally, the parallel optimized heap sort algorithm is compared to the traditional heap sort algorithm. When the data quantity comes up to ten million bytes, the execution efficiency of the optimized parallel heap sort algorithm of this paper is improved significantly compared with the traditional serial heap sort algorithm on the experimental computer. Furthermore, the efficiency gap between the two algorithms will be intensified prominently with the increasing data quantity.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114610561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Two methods of test with LMS vibration test system and simulation with ANSYS software were used to study the modals of drum washing machine cabinet, and the double results are compliance well. The error of natural frequencies of the cabinet obtained with the two methods is no more than 6.1%. The deformation of the given cabinet structure is very obvious for the inefficient rigidity, which will induce resonance. The natural frequency and the deformation positions can be changed from the side plates to the rear cover and the upper cover with structure improved from vertical groove to annular groove with the same motor excited. Simulation is a reliable ways to study the vibration performances.
{"title":"Test and Simulation on Modal Analysis of Drum Washing Machine Cabinet","authors":"Jiang Rong, Min Yingya","doi":"10.1109/ICMTMA.2015.270","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.270","url":null,"abstract":"Two methods of test with LMS vibration test system and simulation with ANSYS software were used to study the modals of drum washing machine cabinet, and the double results are compliance well. The error of natural frequencies of the cabinet obtained with the two methods is no more than 6.1%. The deformation of the given cabinet structure is very obvious for the inefficient rigidity, which will induce resonance. The natural frequency and the deformation positions can be changed from the side plates to the rear cover and the upper cover with structure improved from vertical groove to annular groove with the same motor excited. Simulation is a reliable ways to study the vibration performances.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"51 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120919029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
According to the energy yield of wind turbines, a new design method for optimizing wind turbine blades based on the aerodynamics is presented. The design object is the minimum cost of energy which is calculated from the Annual Energy Production (AEP) and the cost of the rotor. The design variables used in the current study are the chord and twist angle. The blade shape parameters and the loads of the blades are considered as the constraints. With the model in this paper, one 2 MW wind turbine rotor is designed. The aerodynamic characteristics of the designed rotor are simulated and plotted. To prove the reliability of the results, the comparison between the designed 2 MW rotor and one existing widely used 2 MW rotor is completed. The rated wind speed is reduced from the 15m/s to 12.8 m/s that displays the designed rotor has high power at the low wind speed. The maximum power coefficient is increased from 0.463 to 0.49 that can effectively improve the annual power generation.
{"title":"Shape Design and Aerodynamic Characteristics of Wind Turbine Blades Based on Energy Cost","authors":"W. Xudong, Xia Hongjun","doi":"10.1109/ICMTMA.2015.237","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.237","url":null,"abstract":"According to the energy yield of wind turbines, a new design method for optimizing wind turbine blades based on the aerodynamics is presented. The design object is the minimum cost of energy which is calculated from the Annual Energy Production (AEP) and the cost of the rotor. The design variables used in the current study are the chord and twist angle. The blade shape parameters and the loads of the blades are considered as the constraints. With the model in this paper, one 2 MW wind turbine rotor is designed. The aerodynamic characteristics of the designed rotor are simulated and plotted. To prove the reliability of the results, the comparison between the designed 2 MW rotor and one existing widely used 2 MW rotor is completed. The rated wind speed is reduced from the 15m/s to 12.8 m/s that displays the designed rotor has high power at the low wind speed. The maximum power coefficient is increased from 0.463 to 0.49 that can effectively improve the annual power generation.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124043411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper analyses the main reasons of the ineffective implement of current settlement process, summarizes the significance of process settlement in project cost control and project pricing audit, and puts forward some countermeasures to strengthen the process settlement from the aspects of a project contract signing in bidding, settlement auditing during the construction process and engineering dispute handling in construction processing.
{"title":"Significance and Countermeasures of Strengthening Process Settlement","authors":"Xiong Lili","doi":"10.1109/ICMTMA.2015.239","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.239","url":null,"abstract":"This paper analyses the main reasons of the ineffective implement of current settlement process, summarizes the significance of process settlement in project cost control and project pricing audit, and puts forward some countermeasures to strengthen the process settlement from the aspects of a project contract signing in bidding, settlement auditing during the construction process and engineering dispute handling in construction processing.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In order to improve the ability to get rid of partial extreme spot and the diversity of population in evolution, the immunity mechanism of IA algorithm is imported into PSO algorithm to form IA-PSO algorithm. For the purpose of raising fault rate and shortening test pattern generation time, CA algorithm is imported into IA-PSO algorithm to form CAIA-PSO algorithm. Finally, adopting single stuck-at fault and using different algorithms to the simulation experiment of test pattern generation for digital integrated circuits, the result of the experiment is that CA-IA-PSO algorithm can solve the problem of test pattern generation more practically and efficiently, especially the bigger digital integrated circuits.
{"title":"The Test Pattern Generation for Digital Integrated Circuits Based on CA-IA-PSO Algorithm","authors":"Zhang Jiali, Zhang Lin, Yang Yun, Niu Tian-lin, Zhang Long, X. Xiaodong","doi":"10.1109/ICMTMA.2015.322","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.322","url":null,"abstract":"In order to improve the ability to get rid of partial extreme spot and the diversity of population in evolution, the immunity mechanism of IA algorithm is imported into PSO algorithm to form IA-PSO algorithm. For the purpose of raising fault rate and shortening test pattern generation time, CA algorithm is imported into IA-PSO algorithm to form CAIA-PSO algorithm. Finally, adopting single stuck-at fault and using different algorithms to the simulation experiment of test pattern generation for digital integrated circuits, the result of the experiment is that CA-IA-PSO algorithm can solve the problem of test pattern generation more practically and efficiently, especially the bigger digital integrated circuits.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126398448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aiming at the problem of the effect of changes of large scale terrain rendering on the frame rate, this paper presented a data dynamic scheduling method based on quaternary tree LOD model, and using the node traversal of quaternary tree with the GPU parallel acceleration node, Increasing the motion vector, the observation vector and the fluctuation degree of the ground as the judging factors to achieve fast rendering of large-scale terrain, applying the rule that the layers of the adjacent terrain being not more than one, to solve the crack problem that often appears in the rendering scene, to realize the function of the real-time dynamic 3D visualization of large-scale terrain scene of 3D GIS. The experimental results show that, the method accelerating terrain loading through coordination of CPU and GPU, making the process of terrain rendering have good real-time and stable frame rate.
{"title":"Research on Terrain Visualization Based on LOD Dynamic","authors":"Jiang Yi, Liu Zhao","doi":"10.1109/ICMTMA.2015.222","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.222","url":null,"abstract":"Aiming at the problem of the effect of changes of large scale terrain rendering on the frame rate, this paper presented a data dynamic scheduling method based on quaternary tree LOD model, and using the node traversal of quaternary tree with the GPU parallel acceleration node, Increasing the motion vector, the observation vector and the fluctuation degree of the ground as the judging factors to achieve fast rendering of large-scale terrain, applying the rule that the layers of the adjacent terrain being not more than one, to solve the crack problem that often appears in the rendering scene, to realize the function of the real-time dynamic 3D visualization of large-scale terrain scene of 3D GIS. The experimental results show that, the method accelerating terrain loading through coordination of CPU and GPU, making the process of terrain rendering have good real-time and stable frame rate.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126013198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper introduces in detail the realization principle and detection module, anomaly detection technology based on wavelet transform, the experimental results show that it is a effective method to detect traffic anomaly. But also can distinguish normal burst traffic and attack traffic, which improves the accuracy of alarm. But this method lower time complexity is also suitable for large flow of data processing.
{"title":"Wavelet Traffic Detection Based on Variance","authors":"Zhang Yi, Mei Ting","doi":"10.1109/ICMTMA.2015.348","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.348","url":null,"abstract":"This paper introduces in detail the realization principle and detection module, anomaly detection technology based on wavelet transform, the experimental results show that it is a effective method to detect traffic anomaly. But also can distinguish normal burst traffic and attack traffic, which improves the accuracy of alarm. But this method lower time complexity is also suitable for large flow of data processing.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127403063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper analyzed traffic condition of roundabout at Xiangzhou Bus Terminal, exploring the advantages and disadvantages of roundabout at Xiangzhou Bus Terminal. Based on the experience from home and abroad, the optimal design scheme at roundabout was put forward and started with geometric parameters. And finally the feasibility of the scheme will also be demonstrated.
{"title":"Optimization Design of Roundabout at Xiangzhou Bus Terminal","authors":"Wu Xiao-dan, Zhang Jian-yang","doi":"10.1109/ICMTMA.2015.182","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.182","url":null,"abstract":"This paper analyzed traffic condition of roundabout at Xiangzhou Bus Terminal, exploring the advantages and disadvantages of roundabout at Xiangzhou Bus Terminal. Based on the experience from home and abroad, the optimal design scheme at roundabout was put forward and started with geometric parameters. And finally the feasibility of the scheme will also be demonstrated.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114344326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper builds an integrated platform by coupling SWAT model and RegCM3 model which is used in the lancing-Mekong river. Based on the integrated platform, and quantitatively studies the impact of the climate change and reservoir operation on the runoff of lower reaches of the Lancing-Mekong river in different scenarios. The results show that: In the next twenty years, both of climate change and reservoir operation will lead to a drop of the runoff. Of all the factors of Lancang-Mekong river runoff decrease, reservoir operation contributes to 12% and climate change 88%, so the major cause of the change of the runoff is climate change. In the impact factors of climate change, the contribution rate of temperature change accounts for 81% and precipitation change 19%. It's believed that the most important influence factor of the lower reaches of the Lancang-Mekong river runoff is temperature change.
{"title":"The Quantitative Research of Impact of Climate Change and Reservoir Operation on the Runoff Based on Computer Simulation","authors":"Bian Yanjie, Zhao Yong, X. Weihua, Wu Di","doi":"10.1109/ICMTMA.2015.304","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.304","url":null,"abstract":"This paper builds an integrated platform by coupling SWAT model and RegCM3 model which is used in the lancing-Mekong river. Based on the integrated platform, and quantitatively studies the impact of the climate change and reservoir operation on the runoff of lower reaches of the Lancing-Mekong river in different scenarios. The results show that: In the next twenty years, both of climate change and reservoir operation will lead to a drop of the runoff. Of all the factors of Lancang-Mekong river runoff decrease, reservoir operation contributes to 12% and climate change 88%, so the major cause of the change of the runoff is climate change. In the impact factors of climate change, the contribution rate of temperature change accounts for 81% and precipitation change 19%. It's believed that the most important influence factor of the lower reaches of the Lancang-Mekong river runoff is temperature change.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126123343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There is a widespread phenomenon in the enterprises of China that some of the enterprise's interim financial reports reflect negative profits index.In order to achieve the profits of the company,the managers of the enterprise will be regulated the artificial profits and the whitewash financial statements by a variety of methods.By these methods,the enterprises 's annual financial report provided a positive number in the finial year.The implementation of these actions will make the great infact on the corporate investors,shareholders,creditors and government departments.
{"title":"The Analysis of Enterprise Profits Manipulation Based on the Relevance Theory","authors":"Xu Yiqian, Li Yongtong","doi":"10.1109/ICMTMA.2015.349","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.349","url":null,"abstract":"There is a widespread phenomenon in the enterprises of China that some of the enterprise's interim financial reports reflect negative profits index.In order to achieve the profits of the company,the managers of the enterprise will be regulated the artificial profits and the whitewash financial statements by a variety of methods.By these methods,the enterprises 's annual financial report provided a positive number in the finial year.The implementation of these actions will make the great infact on the corporate investors,shareholders,creditors and government departments.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126582004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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