如何在客户规定的时间内合理安排车辆运输路线,一直是物流领域亟待解决的问题。基于此,文章提出使用基于软更新策略的决斗双重深度Q网络(Dueling Double Deep Q-network,D3QN),设计动作空间、状态空间与奖励函数,对带时间窗的绿色车辆...如何在客户规定的时间内合理安排车辆运输路线,一直是物流领域亟待解决的问题。基于此,文章提出使用基于软更新策略的决斗双重深度Q网络(Dueling Double Deep Q-network,D3QN),设计动作空间、状态空间与奖励函数,对带时间窗的绿色车辆路径问题进行建模与求解。选择了小、中、大规模的总计18个算例,将三种算法的实验结果在平均奖励、平均调度车辆数、平均里程和运算时间四个维度进行比较。实验结果表明:在大多数算例中,与Double DQN和Dueling DQN相比,D3QN能在可接受的增加时间范围内,获得更高的奖励函数,调度更少的车辆数,运输更短的里程,实现绿色调度的目标。展开更多
有机小分子光热材料具有结构可控、性质易调、功能多样等优势,近年来被开发用于光热界面水蒸发领域。鉴于此,本文综述了有机小分子材料在光热界面蒸发领域的研究进展。基于有机小分子光热转化增强策略,介绍了适合于该体系的分子结构特...有机小分子光热材料具有结构可控、性质易调、功能多样等优势,近年来被开发用于光热界面水蒸发领域。鉴于此,本文综述了有机小分子材料在光热界面蒸发领域的研究进展。基于有机小分子光热转化增强策略,介绍了适合于该体系的分子结构特征。基于有机小分子可构建膜基、泡沫基、水凝胶基蒸发系统,对上述三类蒸发系统进行了分析和讨论。接着概述了蒸发系统在海水淡化、污水处理、水电联产等领域的应用。最后,对当前发展进行总结并提出所面临的挑战,以期为有机小分子基界面蒸发系统的设计和开发提供参考和借鉴。The photothermal organic small molecules have advantages such as controllable structure, easily tunable properties, and diverse functionalities. In recent years, they have been developed for applications in the field of solar-driven interface evaporation. Therefore, this paper reviews the research progress of organic small molecules based on photothermal interface evaporation systems. The molecular structure characteristics suitable for this system based on the enhanced photothermal conversion mechanism are introduced. Furthermore, three types of evaporation systems constructed using organic small molecules including membrane-based, foam-based, and hydrogel-based systems are analyzed. These systems are further discussed in terms of their potential applications in seawater desalination, wastewater treatment, and water-electricity cogeneration. Finally, the review concludes by summarizing the current developments and highlighting the challenges that must be addressed, which aims to provide references and insights for the design and development of organic small molecule-based interface evaporation systems.展开更多
文摘有机小分子光热材料具有结构可控、性质易调、功能多样等优势,近年来被开发用于光热界面水蒸发领域。鉴于此,本文综述了有机小分子材料在光热界面蒸发领域的研究进展。基于有机小分子光热转化增强策略,介绍了适合于该体系的分子结构特征。基于有机小分子可构建膜基、泡沫基、水凝胶基蒸发系统,对上述三类蒸发系统进行了分析和讨论。接着概述了蒸发系统在海水淡化、污水处理、水电联产等领域的应用。最后,对当前发展进行总结并提出所面临的挑战,以期为有机小分子基界面蒸发系统的设计和开发提供参考和借鉴。The photothermal organic small molecules have advantages such as controllable structure, easily tunable properties, and diverse functionalities. In recent years, they have been developed for applications in the field of solar-driven interface evaporation. Therefore, this paper reviews the research progress of organic small molecules based on photothermal interface evaporation systems. The molecular structure characteristics suitable for this system based on the enhanced photothermal conversion mechanism are introduced. Furthermore, three types of evaporation systems constructed using organic small molecules including membrane-based, foam-based, and hydrogel-based systems are analyzed. These systems are further discussed in terms of their potential applications in seawater desalination, wastewater treatment, and water-electricity cogeneration. Finally, the review concludes by summarizing the current developments and highlighting the challenges that must be addressed, which aims to provide references and insights for the design and development of organic small molecule-based interface evaporation systems.
