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传统纱锭配重打包大多由人工完成或者由机器完成部分工序。人工重复工作易疲劳,打包效率低,并且纱锭重量误差大。无法满足纱锭交易市场要求的重量控制在较小误差范围。本文研究一种纱锭配重组合打包的立体库方法,首先在传统纱锭流水线基础上优化,设计出立体仓储提高库存与利用率。对纱锭流水线动态称重后跟踪出入库,利用配重相关理论和智能算法,将纱锭分拣配重打包,实现纱锭动态运输。针对人工配重精度不高的问题,通过比较现有的重量组合法,给出改进的回溯配对方法,横向纵向动态遍历仓储中不同重量的纱锭。经过仿真实验表明,改进的智能配重方法能大大提高纱锭配重效率,可实际运用于企业生产中。 相似文献
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La1-x Cax MnO3 (x=0-0.3) perovskite-type oxides were synthesized by citrate sol-gel method. The physical and chemical properties were characterized by X-ray diffraction (XRD), Brumauer-Emmett-Teller method (BET), X-ray photoelectron spectroscopy (XPS), NO+O2 -TPD (temperature-programmed desorption), activated oxygen evaluation and H2 -TPR (temperature-programmed reduction) technologies. The results showed that NO catalytic oxidation activity was significantly improved by Ca substitution, especially for lower temperature activity. The La0.9 Ca0.1 MnO 3 sample showed the maximum conversion of 82% at 300 oC. The monodentate nitrates played a crucial role for the formation of NO2 . The reducibility of Mn 4+ ions and reactivity of activated oxygen were favorable for the catalytic performances of NO oxidation. 相似文献
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