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铝板带热轧机板带平直控制原理与方法 被引量:1
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作者 任涛 《有色金属加工》 CAS 2019年第4期46-48,共3页
文章通过详细介绍铝板带热轧机辊缝控制系统的组成,结合轧机刚度理论,分析厚控系统软件的功能,列举现场解决实际问题过程方法,提供了综合解决铝板带热轧生产头尾跑偏难题的思路。
关键词 铝板带热轧 轧机刚度 辊缝控制 靠零 头尾跑偏
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AGC在热轧机的应用
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作者 单良 于光伟 田鸿宇 《黑龙江科技信息》 2010年第22期59-59,共1页
介绍了在热轧AGC上进行的设备改造,及改造后的电气组成部分和电控系统的应用。
关键词 AGC PLC 自动靠零 弹跳补偿 辊缝
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Modeling and optimization of a multi-carrier renewable energy system for zero-energy consumption buildings 被引量:7
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作者 SOULEY AGBODJAN Yawovi LIU Zhi-qiang +2 位作者 WANG Jia-qiang YUE Chang LUO Zheng-yi 《Journal of Central South University》 SCIE EI CAS CSCD 2022年第7期2330-2345,共16页
For the carbon-neutral,a multi-carrier renewable energy system(MRES),driven by the wind,solar and geothermal,was considered as an effective solution to mitigate CO2emissions and reduce energy usage in the building sec... For the carbon-neutral,a multi-carrier renewable energy system(MRES),driven by the wind,solar and geothermal,was considered as an effective solution to mitigate CO2emissions and reduce energy usage in the building sector.A proper sizing method was essential for achieving the desired 100%renewable energy system of resources.This paper presented a bi-objective optimization formulation for sizing the MRES using a constrained genetic algorithm(GA)coupled with the loss of power supply probability(LPSP)method to achieve the minimal cost of the system and the reliability of the system to the load real time requirement.An optimization App has been developed in MATLAB environment to offer a user-friendly interface and output the optimized design parameters when given the load demand.A case study of a swimming pool building was used to demonstrate the process of the proposed design method.Compared to the conventional distributed energy system,the MRES is feasible with a lower annual total cost(ATC).Additionally,the ATC decreases as the power supply reliability of the renewable system decreases.There is a decrease of 24%of the annual total cost when the power supply probability is equal to 8%compared to the baseline case with 0%power supply probability. 展开更多
关键词 multi-carrier renewable energy system constrained genetic algorithm loss of power supply probability(LPSP)method zero-energy consumption building optimal device capacity
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Zero-Return Measure
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作者 Sarod Khandaker 《Journal of Modern Accounting and Auditing》 2011年第11期1213-1222,共10页
The paper uses the proportion of zero-return days model to analyze stock market synchronous behaviors for 11 sample counties. It is found that the zero-return measure of stock synchronicity is higher for some emerging... The paper uses the proportion of zero-return days model to analyze stock market synchronous behaviors for 11 sample counties. It is found that the zero-return measure of stock synchronicity is higher for some emerging economies than the developed economies though the result is not statistically significant. In addition, panel data analysis indicates somewhat positive and negative correlation between the zero-return measures with the explanatory variables. The findings raise question about the reliability of the proportion of zero-return days measure and its capability to capture stock market synchronous behavior. 展开更多
关键词 SYNCHRONICITY R-square zero-return measure panel data
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Fault Tree Analysis of Feeding Control System for Computer Numerical Control Heavy-Duty Horizontal Lathes with Multiple Common Cause Failure Groups 被引量:1
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作者 米金华 李彦锋 +2 位作者 彭卫文 杨圆鉴 黄洪钟 《Journal of Shanghai Jiaotong university(Science)》 EI 2016年第4期504-508,共5页
The lathes are basic machine tools for manufacturing cylindrical parts. In recent years, the DLseries computer numerical control(CNC) heavy-duty horizontal lathes(HDHLs) have been widely used in the transportation, en... The lathes are basic machine tools for manufacturing cylindrical parts. In recent years, the DLseries computer numerical control(CNC) heavy-duty horizontal lathes(HDHLs) have been widely used in the transportation, energy and aviation industries. High availability of the CNC heavy-duty lathes is demanded to guarantee the efficiency and benefit of these manufacturing industries. As one of the key subsystems of the HDHLs, the feeding control system is studied in this paper on reliability modeling and reliability analysis. The fault tree analysis(FTA) method is used for reliability modelling of the feeding control system. Considering the multiple common cause failure groups(CCFGs) existing in the system, a modified beta factor parametric model is introduced to model the common cause failure(CCF) in system. The reliability of feeding control system is then obtained and the effect of CCF on the reliability of the whole system is studied as well. 展开更多
关键词 fault tree analysis (FTA) feeding control system heavy-duty horizontal lathes (HDHLs) common cause failure groups (CCFGs) modified beta factor model
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