Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5988346
Zhiyuan Huang, Yuanming Lai, Xue-ning Ma
With the usage for Zhengzhou-xi'an railway passenger line. The chemical and physical properties of typical loess, the granulometric composition, The variation of liquid and plastic limit, compaction characteristics, strength and its major influencing factors of improved-loess were studied in lab. Through experiments some results were obtained. The Results show that plasticity index of the improved-loess decreases after improvement, at the same time, its hydrophilicity weakened. As the variation of admixture kind, the optimum water content increases a bit, however, the maximum dry density decreases, and the changes of lime improved-loess is more obvious than cement, improved-loess. Other lime-improved loess or cementimproved loess, their strength increases with the curing time, at the increasing strength, the amplification of cohesion is superior to internal friction angle'. The chemical and physical properties of typical loess and its water-resistance were obviously improved through improving properties by chemical method, this would provide useful data and references for the usage of filling of subgrade in the railway passenger line and similar engineerings.
{"title":"Experiment study on loess filling material improvement for the embankment of Zhengzhou - Xi'an railway passenger line","authors":"Zhiyuan Huang, Yuanming Lai, Xue-ning Ma","doi":"10.1109/MACE.2011.5988346","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988346","url":null,"abstract":"With the usage for Zhengzhou-xi'an railway passenger line. The chemical and physical properties of typical loess, the granulometric composition, The variation of liquid and plastic limit, compaction characteristics, strength and its major influencing factors of improved-loess were studied in lab. Through experiments some results were obtained. The Results show that plasticity index of the improved-loess decreases after improvement, at the same time, its hydrophilicity weakened. As the variation of admixture kind, the optimum water content increases a bit, however, the maximum dry density decreases, and the changes of lime improved-loess is more obvious than cement, improved-loess. Other lime-improved loess or cementimproved loess, their strength increases with the curing time, at the increasing strength, the amplification of cohesion is superior to internal friction angle'. The chemical and physical properties of typical loess and its water-resistance were obviously improved through improving properties by chemical method, this would provide useful data and references for the usage of filling of subgrade in the railway passenger line and similar engineerings.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"3 1","pages":"5782-5786"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75947768","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5987130
Hui Li, Shibin Liu, E. Xie
The properties of MgxZn1−xO films dependent on composition were studied in this paper. The experiment showed that the composition of films prepared by sputtering was affected by ambient condition and annealing temperature. The increasing Mg content was in favor of increasing crystal quality of films, and didn't change the wurtzite structure of films. The band gap changed between 3.4 and 4.0 eV, which was dependent on Mg content in films and consistent well with the previous reported theory on alloyed films. These results above showed that MgxZn1−xO films by sputtering could be used as barrier layers in ZnO-based heterostructures.
{"title":"Composition-dependent properties of MgxZn1−xO films by sputtering","authors":"Hui Li, Shibin Liu, E. Xie","doi":"10.1109/MACE.2011.5987130","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987130","url":null,"abstract":"The properties of MgxZn1−xO films dependent on composition were studied in this paper. The experiment showed that the composition of films prepared by sputtering was affected by ambient condition and annealing temperature. The increasing Mg content was in favor of increasing crystal quality of films, and didn't change the wurtzite structure of films. The band gap changed between 3.4 and 4.0 eV, which was dependent on Mg content in films and consistent well with the previous reported theory on alloyed films. These results above showed that MgxZn1−xO films by sputtering could be used as barrier layers in ZnO-based heterostructures.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"63 1","pages":"1111-1114"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75020615","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5988319
Shihua Tong
Based on mastering SOPC and Quartus II, designed UART IP Core, and an integrity design proposal is given out. The proposal is embedded in FPGA chip. The transmitter module, receiver module and baud rate generator are simulated and analyses. The experiments results show that the design method is compact and practical, and the circuit is stable, reliable, and strong flexibility.
{"title":"Design and simulation analysis of UART IP Core","authors":"Shihua Tong","doi":"10.1109/MACE.2011.5988319","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988319","url":null,"abstract":"Based on mastering SOPC and Quartus II, designed UART IP Core, and an integrity design proposal is given out. The proposal is embedded in FPGA chip. The transmitter module, receiver module and baud rate generator are simulated and analyses. The experiments results show that the design method is compact and practical, and the circuit is stable, reliable, and strong flexibility.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"13 4","pages":"5685-5688"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72622108","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5988322
Xianyi Wangu, Di Wu, Yueqiang Sun, Q. Du, W. Bai
In the last decade, using GNSS reflection (GNSS-R) signals for oceanographic remote sensing becomes a new direction in GNSS applications. GNSS-R receiver consists of direct channels for tracking signal from navigation satellite and reflection channels for acquiring the phase delay and Doppler frequency of signal reflected from the ocean. The method of GNSS-R reflection channel based on segment correlation and FFT is presented in this paper. Resources of the reflection channels decrease due to the new algorithm. Performance of the new method is simulated and analyzed.
{"title":"Design of GNSS-R reflection channel based on segment correlation and FFT","authors":"Xianyi Wangu, Di Wu, Yueqiang Sun, Q. Du, W. Bai","doi":"10.1109/MACE.2011.5988322","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988322","url":null,"abstract":"In the last decade, using GNSS reflection (GNSS-R) signals for oceanographic remote sensing becomes a new direction in GNSS applications. GNSS-R receiver consists of direct channels for tracking signal from navigation satellite and reflection channels for acquiring the phase delay and Doppler frequency of signal reflected from the ocean. The method of GNSS-R reflection channel based on segment correlation and FFT is presented in this paper. Resources of the reflection channels decrease due to the new algorithm. Performance of the new method is simulated and analyzed.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"49 1","pages":"5697-5699"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74933838","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5987713
Fang Chen, J. Lu, Zhenli Deng
The titanium dioxide(TiO2) doped with Fe3+ or Cu2+ was prepared by sol-gel method. Their photocatalytic activities for photodegradation of mordant blue wastewater were investigated under the natural light irradiation condition. The results showed that photocatalytic activity of TiO2 doped with Fe3+ or Cu2+ was better than pure TiO2, and the TiO2 doped with Fe3+ was the best. The efficiency of photocatalytic degradation reached the optimum value when doping ratio of Fe3+ was 0.1% and its dosage was 0.5g/L, the degradation rate reached 93.5%. When doping ratio of Cu2+ was 3% and its dosage was 0.6g/L, the degradation rate reached 83.6%.
{"title":"Research on photocatalytic activity of the titanium dioxide doped with transition metal ions in dyestuff wastewater","authors":"Fang Chen, J. Lu, Zhenli Deng","doi":"10.1109/MACE.2011.5987713","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987713","url":null,"abstract":"The titanium dioxide(TiO<inf>2</inf>) doped with Fe<sup>3+</sup> or Cu<sup>2+</sup> was prepared by sol-gel method. Their photocatalytic activities for photodegradation of mordant blue wastewater were investigated under the natural light irradiation condition. The results showed that photocatalytic activity of TiO<inf>2</inf> doped with Fe<sup>3+</sup> or Cu<sup>2+</sup> was better than pure TiO<inf>2</inf>, and the TiO<inf>2</inf> doped with Fe<sup>3+</sup> was the best. The efficiency of photocatalytic degradation reached the optimum value when doping ratio of Fe<sup>3+</sup> was 0.1% and its dosage was 0.5g/L, the degradation rate reached 93.5%. When doping ratio of Cu<sup>2+</sup> was 3% and its dosage was 0.6g/L, the degradation rate reached 83.6%.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"357 1","pages":"3368-3371"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76508818","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5987762
Xiaoqiang Dong, X. Bai, Yongkang Lv
Take the cemented soil mixed with the soil polluted by Sodium Hydroxide as object, the relationships between of their electrical resistivity and age, sodium hydroxide content, unconfined compression strength have been studied quantitatively. Then combined with microscopic photos, the change mechanism of electrical resistivity and unconfined compression strength were analyzed. Results show: the electrical resistivity and unconfined compression strength are increased with the increase of age under every sodium hydroxide content; the electrical resistivity and unconfined compression strength are increased with the increase of sodium hydroxide content under every age; the unconfined compression strength of cemented soil has a linear correlation with the increase of electrical resistivity. The change of electrical resistivity is because of conductive pore structure and the number of ions. The electrical resistivity of cemented soil is higher, the integral structure conductivity is weaker, the link between soil particles is more closely, the porosity ratio is smaller, the pore connectivity is poorer, the unconfined compression strength of cemented soil is higher.
{"title":"Study on the electrical resistivity and strength of cemented soil contaminated by Sodium Hydroxide","authors":"Xiaoqiang Dong, X. Bai, Yongkang Lv","doi":"10.1109/MACE.2011.5987762","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987762","url":null,"abstract":"Take the cemented soil mixed with the soil polluted by Sodium Hydroxide as object, the relationships between of their electrical resistivity and age, sodium hydroxide content, unconfined compression strength have been studied quantitatively. Then combined with microscopic photos, the change mechanism of electrical resistivity and unconfined compression strength were analyzed. Results show: the electrical resistivity and unconfined compression strength are increased with the increase of age under every sodium hydroxide content; the electrical resistivity and unconfined compression strength are increased with the increase of sodium hydroxide content under every age; the unconfined compression strength of cemented soil has a linear correlation with the increase of electrical resistivity. The change of electrical resistivity is because of conductive pore structure and the number of ions. The electrical resistivity of cemented soil is higher, the integral structure conductivity is weaker, the link between soil particles is more closely, the porosity ratio is smaller, the pore connectivity is poorer, the unconfined compression strength of cemented soil is higher.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"47 1","pages":"3563-3566"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77588085","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5988002
Shuangxi Chen, Jianhui Lin, Jianzheng Chen
In order to learn influence of wheel tread reprofiling on dynamics behaviors of high speed electric motor car, wheel tread worn and dynamics characteristics of motor car was studied before and after wheel tread reprofiling. Experimental results show: The maximum vibration acceleration of axle housing was significantly reduced after wheel tread reprofiling, the influence of wheel tread reprofiling on the maximum vibration acceleration of bogie frame, air spring, car body was not significant, the main vibration frequency components of axle housing, bogie frame, air spring, car body were changed and some high frequency vibration components were significantly reduced after wheel tread reprofiling, the capacity of vibration isolation of primary & secondary suspension was perfect before wheel tread reprofiling and was much better after wheel tread reprofiling, and the lateral stability of motor car was slightly improved after wheel tread reprofiling.
{"title":"System dynamic analysis for motor car-Influence of wheel tread reprofiling","authors":"Shuangxi Chen, Jianhui Lin, Jianzheng Chen","doi":"10.1109/MACE.2011.5988002","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988002","url":null,"abstract":"In order to learn influence of wheel tread reprofiling on dynamics behaviors of high speed electric motor car, wheel tread worn and dynamics characteristics of motor car was studied before and after wheel tread reprofiling. Experimental results show: The maximum vibration acceleration of axle housing was significantly reduced after wheel tread reprofiling, the influence of wheel tread reprofiling on the maximum vibration acceleration of bogie frame, air spring, car body was not significant, the main vibration frequency components of axle housing, bogie frame, air spring, car body were changed and some high frequency vibration components were significantly reduced after wheel tread reprofiling, the capacity of vibration isolation of primary & secondary suspension was perfect before wheel tread reprofiling and was much better after wheel tread reprofiling, and the lateral stability of motor car was slightly improved after wheel tread reprofiling.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"1 1","pages":"4483-4486"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77690759","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5988755
Yu Qi, Wen Wang
The paper introduces the generation of industrial solid waste exchange, focused on the feature analysis of TEDA industrial solid waste exchange's company. On the basis of analysis on characteristic of industrial waste company, including company's size, consist and location, the paper point out the management situation of reclamation companies.
{"title":"Feature analysis of industrial solid waste exchange's company in TEDA, Tianjin — A case study of industrial symbiosis in China","authors":"Yu Qi, Wen Wang","doi":"10.1109/MACE.2011.5988755","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988755","url":null,"abstract":"The paper introduces the generation of industrial solid waste exchange, focused on the feature analysis of TEDA industrial solid waste exchange's company. On the basis of analysis on characteristic of industrial waste company, including company's size, consist and location, the paper point out the management situation of reclamation companies.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"21 1","pages":"7380-7382"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77722258","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5988144
Yushu Bian, Zhihui Gao, Min Liu
In order to conquer the difficulty of simultaneous optimizations on kinematic and dynamic indices of the redundant manipulator, a new type of redundant manipulator with local degrees of freedom is proposed. Redundant degrees of freedom are used to optimize kinematic index, and local degrees of freedom are used to optimize dynamic index. The corresponding optimization method is suggested. As a result, the kinematic and dynamic indices of the redundant manipulator can be optimized simultaneously. Some simulations are carried out, and the optimization method is verified to be effective.
{"title":"Kinematic and dynamic optimizations of the redundant manipulator via local degrees of freedom","authors":"Yushu Bian, Zhihui Gao, Min Liu","doi":"10.1109/MACE.2011.5988144","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988144","url":null,"abstract":"In order to conquer the difficulty of simultaneous optimizations on kinematic and dynamic indices of the redundant manipulator, a new type of redundant manipulator with local degrees of freedom is proposed. Redundant degrees of freedom are used to optimize kinematic index, and local degrees of freedom are used to optimize dynamic index. The corresponding optimization method is suggested. As a result, the kinematic and dynamic indices of the redundant manipulator can be optimized simultaneously. Some simulations are carried out, and the optimization method is verified to be effective.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"14 1","pages":"5022-5025"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78175228","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}
Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5987662
Xiao-zhen Chen, Xuejun Zhang
Shihe bridge in Xinyang city built in 1997 is a a half-through reinforced concrete tied-arch bridge. In order to test and evaluate the loading character, the static and dynamic analysis is performed, the experimental measurement is also performed in January, 2004. In this paper, the structure is analyzed through FEM, the computed result is compared with the measured result. Through the comparison, the conclusion can be drawn that the global strength and rigidity of the bridge can meet the demand of normal use, the loading capacity adds up to the design requirement.
{"title":"Finite element analysis of a half-through reinforced concrete tied-arch bridge based on FEM program ANSYS","authors":"Xiao-zhen Chen, Xuejun Zhang","doi":"10.1109/MACE.2011.5987662","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987662","url":null,"abstract":"Shihe bridge in Xinyang city built in 1997 is a a half-through reinforced concrete tied-arch bridge. In order to test and evaluate the loading character, the static and dynamic analysis is performed, the experimental measurement is also performed in January, 2004. In this paper, the structure is analyzed through FEM, the computed result is compared with the measured result. Through the comparison, the conclusion can be drawn that the global strength and rigidity of the bridge can meet the demand of normal use, the loading capacity adds up to the design requirement.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"413 1","pages":"3168-3170"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79980804","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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