The influence factors treating wastewater of Chinese traditional medicine extraction by photosynthetic bacteria are tested and discussed. The results indicate that the method of photosynthetic bacteria can eliminate C...The influence factors treating wastewater of Chinese traditional medicine extraction by photosynthetic bacteria are tested and discussed. The results indicate that the method of photosynthetic bacteria can eliminate COD and BOD from wastewater in high efficiency. And it also has high load shock resistance. On the conditions of slight aerobic and semi-darkness, treating wastewater of Chinese traditional medicine extraction, the method has better efficiency to eliminate COD and BOD from the wastewater than those by anaerobic illumination and aerobic darkness treatments. After pretreatment of hydrolytic acidization, the removal rate of COD in the wastewater reached more than 85 %, and that rate of BOD reached more than 90% in the treating system of photosynthetic bacteria. It may be more feasible and advantageous than traditional anaerobic biological process to treat organic wastewater using PSB system.展开更多
针对中医事件抽取过程中存在事件论元边界模糊的问题,综合运用卷积神经网络、双向长短期记忆网络和注意力机制提出了一种局部与全局语义特征融合的事件抽取模型(event extraction model integrating local and global semantic feature,...针对中医事件抽取过程中存在事件论元边界模糊的问题,综合运用卷积神经网络、双向长短期记忆网络和注意力机制提出了一种局部与全局语义特征融合的事件抽取模型(event extraction model integrating local and global semantic feature,EE-LGSF),以提升中医事件抽取的效果。首先,通过结合不同滤波窗口大小的卷积神经网络提取文本的多维度局部特征信息,同时利用双向长短期记忆网络捕捉文本的全局特征信息;其次,通过门控机制实现局部与全局信息的动态交互,以增强对论元边界的识别能力;再次,引入模糊跨度注意力机制,动态调整注意力范围,从而优化论元跨度的决策过程;最后,以条件随机场进行标签预测。结果表明,所提模型比相关模型在中医医案数据集上的F1值提升了3.0~11.0个百分点,在解决中医事件抽取问题方面表现更为优异。所提模型能有效利用文本局部和全局语义信息,提高对文本跨度学习的灵活性来增强模型对论元边界的识别能力,从而获得更好的中医事件抽取效果,对中医知识传承和发展具有参考价值。展开更多
This paper summarized application and research advancement of the microwave-assisted extraction in the agriculture, food industry, environmental analytical chemistry, traditional Chinese medicine industry, and so on. ...This paper summarized application and research advancement of the microwave-assisted extraction in the agriculture, food industry, environmental analytical chemistry, traditional Chinese medicine industry, and so on. The microwave-assisted extraction was manifested to be a simple device, wide area of application, high extraction efficiency, good reproducibility and low consumption of agent and time as well as low environmental pollution. At present, industrialization question of the microwave-assisted extraction technology has been attached importance, which will impel the microwave-assisted extraction technology to more development in the future展开更多
基金Tackle Key Problems in Science and Technology of Heilongjiang Province.
文摘The influence factors treating wastewater of Chinese traditional medicine extraction by photosynthetic bacteria are tested and discussed. The results indicate that the method of photosynthetic bacteria can eliminate COD and BOD from wastewater in high efficiency. And it also has high load shock resistance. On the conditions of slight aerobic and semi-darkness, treating wastewater of Chinese traditional medicine extraction, the method has better efficiency to eliminate COD and BOD from the wastewater than those by anaerobic illumination and aerobic darkness treatments. After pretreatment of hydrolytic acidization, the removal rate of COD in the wastewater reached more than 85 %, and that rate of BOD reached more than 90% in the treating system of photosynthetic bacteria. It may be more feasible and advantageous than traditional anaerobic biological process to treat organic wastewater using PSB system.
文摘针对中医事件抽取过程中存在事件论元边界模糊的问题,综合运用卷积神经网络、双向长短期记忆网络和注意力机制提出了一种局部与全局语义特征融合的事件抽取模型(event extraction model integrating local and global semantic feature,EE-LGSF),以提升中医事件抽取的效果。首先,通过结合不同滤波窗口大小的卷积神经网络提取文本的多维度局部特征信息,同时利用双向长短期记忆网络捕捉文本的全局特征信息;其次,通过门控机制实现局部与全局信息的动态交互,以增强对论元边界的识别能力;再次,引入模糊跨度注意力机制,动态调整注意力范围,从而优化论元跨度的决策过程;最后,以条件随机场进行标签预测。结果表明,所提模型比相关模型在中医医案数据集上的F1值提升了3.0~11.0个百分点,在解决中医事件抽取问题方面表现更为优异。所提模型能有效利用文本局部和全局语义信息,提高对文本跨度学习的灵活性来增强模型对论元边界的识别能力,从而获得更好的中医事件抽取效果,对中医知识传承和发展具有参考价值。
文摘This paper summarized application and research advancement of the microwave-assisted extraction in the agriculture, food industry, environmental analytical chemistry, traditional Chinese medicine industry, and so on. The microwave-assisted extraction was manifested to be a simple device, wide area of application, high extraction efficiency, good reproducibility and low consumption of agent and time as well as low environmental pollution. At present, industrialization question of the microwave-assisted extraction technology has been attached importance, which will impel the microwave-assisted extraction technology to more development in the future
