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Water-soluble chitosan promotes remediation of Pb-contaminated soil by Hylotelephium spectabile

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Frontiers of Environmental Science & Engineering 2024年第7期18卷 109-122页

作者： Bingxin Guo Yiwei zhang Junxing Yang Tianwei Qian Junmei Guo Xiaona Liu yuan Jiao Tongbin Chen Guodi Zheng wenjun Li Fei Qi College of Environmental Science and Engineering Taiyuan University of TechnologyShanxi Key Laboratory of Earth Surface Processes and Resource Ecological Security in Fenhe River BasinShanxi Engineering Research Center of Low Carbon Remediation for Water and Soil Pollution in Yellow River BasinJinzhong 030600China Center for Environmental Remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Shanxi Transportation Holding Ecological Environment Co. Ltd.Shanxi 030000China Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China

Water-soluble chitosan(WSC)has been studied for its ability to mobilize soil Pb and promote the phytoremediation by Hylotelephium spectabile in Pb-contaminated *** aimed to clarify the internal mechanism by which wSC impacts phytoremediation by examining plant growth and Pb accumulation performance of *** as well as the Pb form,functional groups,and mineral phases of Pb-contaminated *** effectively decreased soil pH and activated Pb migration in rhizosphere soils,with a considerable increase in water-soluble and acid-extractable Pb by 29%-102%and 9%-65%,respectively,and a clear decreasing trend in reducible and oxidizable ***-transform infrared spectroscopy revealed a significant increase in amino and hydroxyl groups in the soil generated by *** coordination of Pb with amino and hydroxyl groups may play an important role in the formation of Pb complexes and activation of Pb in *** field trials,the application of WSC significantly increased Pb accumulation in *** by 125.44%,reaching 92 g/hm^(2).Moreover,the organic matter and nitrogen in the soils were increased by WSc,which improved the growth conditions of *** obvious growth inhibition was observed in either the pot or field ***,WSC is a promising chelating agent for mobilizing Pb in ***,WSC can be potentially used to boost ***-mediated phytoremediation of Pb-contaminatedfarmland.

关键词： Phytoremediation Pb-contaminated soil Water-soluble chitosan Hylotelephium spectabile Fourier transform infrared spectroscopy

Disease and Economic Burden of Kashin-Beck Disease—China,2021

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China CDC weekly 2024年第2期6卷 40-44页

作者： Silu Cui wenjun Que Zhe Jiao Qing Deng Xufeng zhang Yanhong Cao Ning Liu Ailin Li Alphonse Sowanou Zhe Li Tuo Wang Yang Li Jun Yu Junrui Pei NHC Key Laboratory of Etiology and Epidemiology(Harbin Medical University) Key Laboratory of Etiology and EpidemiologyEducation Bureau of Heilongjiang ProvinceInstitute of Kashin-Beck Disease ControlCenter for Endemic Disease ControlChinese Center for Disease Control and PreventionHarbin Medical UniversityHarbin CityHeilongjiang ProvinceChina NHC Key Laboratory of Etiology and Epidemiology(Harbin Medical University) Heilongjiang Provincial Key Laboratory of Trace Elements and Human HealthKey Laboratory of Etiology and EpidemiologyEducation Bureau of Heilongjiang ProvinceInstitute of Endemic Fluorosis ControlCenter for Endemic Disease ControlChinese Center for Disease Control and PreventionHarbin Medical UniversityHarbin CityHeilongjiang ProvinceChina

What is already known about this topic?Kashin-Beck disease(KBD)is a chronic and degenerative osteoarthropathy characterized by cartilage *** is an endemic disease that is highly prevalent among the Chinese population and poses a significant health *** is added by this report?This is the first national report on the economic burden of KBD in *** to the data from 2021,KBD has caused significant disease and economic *** most substantial reduction in healthy life expectancy was observed among patients with degree II severity and those aged 60 years and older,resulting in a total indirect economic burden of 112.74 million Chinese yuan(CNY).What are the implications for public health practice?The results of this study will contribute to informing the development of tailored prevention and control strategies by the *** strategies will include targeted policies and recommendations for appropriate healthcare and financial subsidies,which will be based on the demographic characteristics of the endemic areas.

关键词： prevention degeneration burden

一种新的多能互补分布式能源系统动态约束工作点设计方法

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动力工程学报 2024年第1期44卷 128-137页

作者：张瑞芳崔国民徐玥肖媛易智康郭佳上海理工大学新能源科学与工程研究所上海200093

提出了一种新的动态约束工作点设计方法,通过调节部分设备容量,并同步优化储能设备容量,强化储能设备削峰填谷的优势。以经济性最优为目标,以系统中各设备容量为优化变量,将容量配置优化模型与强制进化随机游走算法相结合,并将其应用于... 详细信息

提出了一种新的动态约束工作点设计方法,通过调节部分设备容量,并同步优化储能设备容量,强化储能设备削峰填谷的优势。以经济性最优为目标,以系统中各设备容量为优化变量,将容量配置优化模型与强制进化随机游走算法相结合,并将其应用于具体算例。结果表明:相比其他3种方案,采用动态约束工作点设计方法后年综合费用分别降低了11.3%、8.8%和4.1%,进一步提高了系统的经济性。

关键词： MCDES 动态约束工作点优化配置强制进化随机游走算法

一种自适应强制进化随机游走算法应用于换热网络综合

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化学工程 2024年第4期52卷 40-45,57页

作者：段欢欢易智康张笑恬肖媛崔国民上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室上海200093 河南牧业经济学院能源与智能工程学院河南郑州450000

RWCE(强制进化随机游走)算法应用于系统热集成时,最大步长既影响当前可行搜索域的范围,又影响整型变量的进化,固定参数设置降低了更优解产生的几率。因此提出一种融合自适应步长和自适应反向学习策略的RWCE算法。建立随机动态步长,在导... 详细信息

RWCE(强制进化随机游走)算法应用于系统热集成时,最大步长既影响当前可行搜索域的范围,又影响整型变量的进化,固定参数设置降低了更优解产生的几率。因此提出一种融合自适应步长和自适应反向学习策略的RWCE算法。建立随机动态步长,在导向参数牵引下自动激励有利步长值持续进化;在此基础上,建立自适应反向学习策略改变个体进化路径,使算法在优化的不同阶段能够自动搜索最佳步长,并挖掘尽可能多的结构,充分发挥算法全局搜索和局部开发能力。最后研究并计算H6C10、H10C10、H13C73个典型中大规模算例,结果表明该方法能够进一步提升算法的寻优能力。

关键词：自适应导向参数反向学习换热网络 RWCE

基于AMPK/mTOR信号通路介导自噬探讨中医药治疗心力衰竭的机制研究进展

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中国实验方剂学杂志 2024年第21期30卷 112-122页

作者：毛文君张艳张伟王雅琴袁子阳辽宁中医药大学沈阳110847 辽宁中医药大学附属医院沈阳110032 沈阳药科大学沈阳110016

心力衰竭(HF)是一种由心脏功能障碍引起心室泵血功能受损的一组综合征,严重影响患者的健康和生活质量。HF的发病机制复杂,包括心肌收缩力减退、心肌细胞纤维化和心室重构等多个方面,并与神经内分泌调节、炎症反应及心肌细胞自噬等多种... 详细信息

心力衰竭(HF)是一种由心脏功能障碍引起心室泵血功能受损的一组综合征,严重影响患者的健康和生活质量。HF的发病机制复杂,包括心肌收缩力减退、心肌细胞纤维化和心室重构等多个方面,并与神经内分泌调节、炎症反应及心肌细胞自噬等多种因素有关。自噬是一种细胞通过自我降解的方式,以维持机体稳态的重要调节机制。在HF的进程中,适度的自噬能够清除老化和受损的心肌细胞、维持心肌能量代谢平衡,而异常的自噬则可能会导致心肌细胞的功能减退和病理性改变。腺苷酸活化蛋白激酶(AMPK)/哺乳动物雷帕霉素哺乳靶蛋白(mTOR)则是调控自噬的经典通路之一,可以通过调控AMPK/mTOR信号通路介导心肌细胞自噬过程,起到保护心脏功能,延缓HF进程的作用。中医药在历史长河中不断发展和创新,有着独特的理论体系,并在与现代医学的交汇下表现出卓越的疗效与广泛的应用前景。临床实践中,中医药在治疗心血管疾病方面有着丰富经验,大量国内外研究表明,许多中药有效成分、中药复方及中成药可以通过调节AMPK/mTOR信号通路介导自噬以达到治疗HF的目的。笔者从AMPK/mTOR信号通路介导自噬的作用机制出发,阐释该机制在治疗HF过程中的关键作用,并基于中医相关理论探讨对自噬、AMPK/mTOR信号通路和HF的理解,同时对中医药通过AMPK/mTOR通路调控自噬治疗HF进行了综述,以期深入挖掘中医药在心血管疾病治疗中的潜力,为后续实验研究提供理论支持,并在临床上展现中医优势,实现更加精准化的治疗。

关键词：腺苷酸活化蛋白激酶(AMPK)/哺乳动物雷帕霉素哺乳靶蛋白(mTOR)信号通路自噬中医药心力衰竭研究进展

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一种微电网优化配置的随机游走算法

计算物理 2024年第3期41卷 392-402页

作者：潘磊崔国民张瑞芳刘洪彬肖媛易智康上海理工大学能源与动力工程学院上海200093 上海市动力工程多相流动与传热重点实验室上海200093

针对独立型微电网配置优化问题,建立一种以能流匹配形式描述的风-光-柴-储优化模型,形成表示各时刻设备出力的节点连接关系。鉴于群智能算法应用于微电网优化配置问题易早熟收敛的特点,提出适用于微电网优化配置的随机游走优化算法,算... 详细信息

针对独立型微电网配置优化问题,建立一种以能流匹配形式描述的风-光-柴-储优化模型,形成表示各时刻设备出力的节点连接关系。鉴于群智能算法应用于微电网优化配置问题易早熟收敛的特点,提出适用于微电网优化配置的随机游走优化算法,算法以降低系统年综合费用为导向,通过随机增大或减小设备逐时出力,实现连续变量(设备出力)和整型变量(设备数量)同步优化,通过接受差解机制,使算法具有跳出局部最优解的能力,更好兼顾微电网容量优化过程中的全局搜索与局部搜索。将随机游走算法应用到算例进行仿真,得到年综合费用为552826.39元,与粒子群优化算法进行对比,结果更好,验证了算法在优化质量上的优越性。

关键词：独立型微电网优化配置随机游走接受差解局部搜索

Review on the Characteristics,Heating Sources and Evolutionary Processes of the Operating Composite Insulators with Abnormal Temperature Rise

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CSEE Journal of Power and Energy Systems 2022年第3期8卷 910-921页

作者： zhikang yuan Youping Tu Ruihai Li Fuzeng zhang Bo Gong Cong Wang State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing102206China Electric Power Research Institute China Southern Power Grid Co.Ltd.Guangzhou510080China

This paper reviews the research progress on abnormal temperature rise(ATR)of composite *** ATR of composite insulators can be divided into two types,point-form temperature rise(PFTR)and bar-form temperature rise(BFTR).The composite insulators with PFTR only show significant temperature rise at high relative humidity(RH)(>70%),and the temperature rise is located in the area that is 20 cm above the metal *** a low humidity environment(70%)and low(<30%)*** temperature rise could reach more than 10◦C and the temperature rise area is wider,extending from the high-voltage end to several shed units at the lowvoltage *** the glass fiber reinforced plastic(GRP)core in the composite insulator is found to be *** heating energy is supplied by both conductance loss and polarization loss of the corroded GRP *** decay-like degradation of the GRP core is caused by the combination of damp conditions,high electric field,discharge,mechanical load,et *** may evolve into a decay-like fracture of the composite *** preventive methods concerning quality control,structure optimization,material modification and operational strategy are *** is suggested that when PFTR is detected on the composite insulator,the inspection period of the insulator should be properly *** composite insulator should be replaced as soon as the BFTR was detected.

关键词： Abnormal temperature rise composite insulator glass fiber reinforced plastic(GRP)core silicone rubber housing

基于回归算法的渣油加氢装置反应温度预测及系统实现

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石油学报（石油加工） 2024年第5期40卷 1345-1352页

作者：卢文君张金蓉崔瑞利张弢宋俊男姚远崔鹏金玮侯士超中国石油天然气集团公司昆仑数智科技有限责任公司北京102206 中国石油集团石油化工研究院有限公司北京102206

目前对渣油加氢催化剂生命周期预测的技术较少,研究可方便探知催化剂活性状态的解决方案,将有效助力渣油加氢装置的催化剂更换管理。根据影响催化剂活性的多种因素,机器学习建模过程中选择了装置运行数据的运行时间、原料及产品性质等... 详细信息

目前对渣油加氢催化剂生命周期预测的技术较少,研究可方便探知催化剂活性状态的解决方案,将有效助力渣油加氢装置的催化剂更换管理。根据影响催化剂活性的多种因素,机器学习建模过程中选择了装置运行数据的运行时间、原料及产品性质等直接变量,并通过计算添加了金属沉积量、总加工负荷等组合变量作为特征,进行算法筛选调整参数,拟合装置运行周期过程的升温规律。训练后模型对测试周期反应温度预测的平均绝对百分比误差0.51%,进而可以通过反应温度的经验阈值得到催化剂预期寿命。考虑到生产数据与实验数据可能存在的分布差异,根据研究成果设计实现的软件系统操作灵活,为专业工程技术人员提供了便捷有效的辅助研究工具。

关键词：渣油加氢催化剂寿命反应温度预测机器学习系统实现

Research on Realization Mechanism and Path of Beautiful Countryside under Perspective of Ecological Economic Compound System

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学术界 2018年第4期 274-284页

作者： zhang yuan Song wenjun Lingnan College Sun Yat -sen University Guangzhou Guangdong 510275 School of Marxism Sun Yat -sen University Guangzhou Guangdong 510275

The practice based on"beautiful countryside"studies the evolution of Chinese rural society from supply-demand resource allocation to welfare type,forms the symbiotic model for the mechanism of"One Belt,One Road", establishes regional macroeconomic fundamentals, conforms to the situation of the marketization of China’s rural society and the"integration"of urban &rural areas. And it reestablishes the welfare form of rural"phenomenological"philosophy and it develops economic, ecological &social macroeconomic model. The research and use on the openness of"rural system"can promote the formation of ecological structure of rural system, can construct the symbiotic model of rural society, can form the social welfare system including "ecological synthesis","industrial complex"and"institutional community", can realize rural social stratification,o rganization optimization & demand support,and can lay the foundation of stability with Chinese characteristics.

关键词：中国农村复合系统宏观经济生态机制社会福利路径模型