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Interconnected Porous Fabric‑Based Scalable Evaporator with Asymmetric Wetting Properties for High‑Yield and Salt‑Rejecting Solar Brine Treatment

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Advanced Fiber Materials 2024年第4期6卷 1162-1173页

作者： Lipei Ren Qian Zhang Guomeng Zhao Tao Chen yingao wang Xingfang Xiao Hongjun Yang Ning Xu Weilin Xu State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsNanjing UniversityNanjing 210093People’s Republic of China

Solar-driven interfacial evaporation has been considered as a promising approach for treating high-salinity brine,which mitigates ecological pollution as well as produces fresh *** the extensive research efforts,challenges remain regarding the stably high-yield solar treatment of high-salinity water on a large ***,we demonstrate an interconnected porous fabric-based scalable evaporator with asymmetric wetting properties fabricated by weaving technique for high-efficiency and salt-rejecting solar high-salinity brine ***-dimensional interconnected micropores ensure effective convection-induced fast vapor diffusion,leading to a high evaporation rate in the natural environment with the convective *** Janus structure effectively separates absorption and evaporation surfaces for stable salt resistance even under fast *** is observed that the evaporator achieves a high evaporation rate of 2.48 kg m^(-2)h^(-1)under 1-sun illumination and airflow of 3 m s^(-1)when treating 15 wt%***,the outdoor experiment demonstrates that there is neither salt precipitation on the surface nor a decrement in evaporation rate during the 5-day evaporation until water and solute have completely been *** interconnected porous fabric with asymmetric wetting properties can be easily and massively produced by industrialized weaving techniques,showing great potential for scalable and efficient solar water treatment of high-salinity brine and industrial wastewater.

关键词： Saline wastewater treatment Interfacial solar evaporation Janus fabrics Asymmetric wetting properties Airflow enhancement

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网购平台商品虚假评论检测技术研究

信息与电脑 2021年第23期33卷 7-9页

作者：姜宾宾王新豪胡玉王迎澳铜陵学院数学与计算机学院安徽铜陵244061

商品评论是消费者在线购买产品或服务的重要依据,虚假评论会误导消费者做出错误的选择。因此,如何检测虚假评论是网购平台面临的一个重要问题。支持向量机是非常重要的分类算法,可以用于解决该问题。笔者提出一种基于权重、KKT(Karush K... 详细信息

商品评论是消费者在线购买产品或服务的重要依据,虚假评论会误导消费者做出错误的选择。因此,如何检测虚假评论是网购平台面临的一个重要问题。支持向量机是非常重要的分类算法,可以用于解决该问题。笔者提出一种基于权重、KKT(Karush Kuhn Tucker)条件以及凸包的增量式学习算法,用于检测商品虚假评论,并对其性能进行理论分析和实验验证。实验结果表明,在虚假评论检测过程中,使用支持向量机增量学习不仅在理论上切实可行,在实验中也获得较好的分类效果。

关键词：虚假评论支持向量机增量学习 KKT条件凸包

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长白瑞香不同药用部位中多成分的含量测定

延边大学医学学报 2022年第1期45卷 28-31页

作者：程旭王莹傲胡祺鹏金莉莉延边大学药学院吉林延吉133002

[目的]测定长白瑞香全草、果实、叶中瑞香素、伞形花内酯、瑞香苷、柚皮素、紫丁香苷的含量,并进行比较.[方法]采用HPLC法测定,测定条件如下:以甲醇-0.05%(体积分数)磷酸水溶液为流动相,流动速度为1.0 mL/min,色谱柱C_(18),柱温为30℃,... 详细信息

[目的]测定长白瑞香全草、果实、叶中瑞香素、伞形花内酯、瑞香苷、柚皮素、紫丁香苷的含量,并进行比较.[方法]采用HPLC法测定,测定条件如下:以甲醇-0.05%(体积分数)磷酸水溶液为流动相,流动速度为1.0 mL/min,色谱柱C_(18),柱温为30℃,检测波长为310 nm.[结果]长白瑞香全草、果实、叶中有效成分的含量间具有差异,瑞香素在长白瑞香叶中含量最高,为62.574 mg/g,伞形花内酯及瑞香苷均在果实中含量最高,分别为3.650、26.068 mg/g,柚皮素在长白瑞香叶中含量最高,为0.307 mg/g,紫丁香苷在长白瑞香果实中含量最高,为5.264 mg/g.[结论]长白瑞香不同药用部位中的有效成分含量间存在差异.

关键词：长白瑞香不同药用部位含量测定

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基于网络药理学探讨松花粉抗疟原虫的机制

延边大学医学学报 2022年第1期45卷 35-40页

作者：张璐王莹傲郑慧慧崔银峰金莉莉延边大学药学院吉林延吉133002 延边大学医学院吉林延吉133002

[目的]应用网络药理学结合生物信息学方法探讨松花粉抗疟原虫的可能机制.[方法]通过检索TCMSP数据库筛选出松花粉活性成分及其相关靶点,并查阅文献进行补充,得到候选有效成分.通过Uniprot数据库将靶点名称转换成基因名称,在GeneCards数... 详细信息

[目的]应用网络药理学结合生物信息学方法探讨松花粉抗疟原虫的可能机制.[方法]通过检索TCMSP数据库筛选出松花粉活性成分及其相关靶点,并查阅文献进行补充,得到候选有效成分.通过Uniprot数据库将靶点名称转换成基因名称,在GeneCards数据库中寻找疟原虫相关靶点,选择松花粉作用靶点与疟原虫相关靶点的交集筛选出松花粉抗疟原虫的活性成分及作用靶点.利用Cytoscape 3.8.0软件构建松花粉活性成分-作用靶点网络,筛选出关键化合物,通过STRING平台构建靶蛋白相互作用网络,筛选出关键靶点.采用DAVID在线分析平台对靶点基因进行GO富集分析和KEGG代谢通路分析,明确生物学机制.最后利用AutoDockTools 1.5.6和AutoDockVina软件对与抗疟原虫的相关核心靶点进行分子对接.[结果]从松花粉中筛选出10个有效成分及120个作用靶点,其中与疟原虫相关的作用靶点42个,关键靶点6个.功能分析结果显示,交集基因主要集中在氧化还原过程中.与松花粉抗疟原虫有关系的作用通路可能涉及药物代谢-细胞色素P450、细胞色素P450对异生物的代谢、NF-κB信号通路、细胞黏附分子、代谢途径等.分子对接结果显示,核心靶点与山奈酚、谷甾醇、柚皮素、花旗松素和氯化花青素有较强的亲和力.[结论]网络药理学及生物信息学方法对研究松花粉及其类似物的基因靶点、揭示潜在抗疟原虫生物学活性机制、研究疟原虫有关疾病的治疗机制具有重要意义.

关键词：松花粉网络药理学疟原虫

A fast scanning strategy based on trajectory shaping for atomic force microscopy

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Nano Research 2022年第7期15卷 6438-6446页

作者： Yinan Wu yingao Chang Yongchun Fang Zhi Fan Institute of Robotics and Automatic Information System College of Artificial IntelligenceNankai UniversityTianjin 300350China Tianjin Key Laboratory of Intelligent Robotics Nankai UniversityTianjin 300350China

To improve the scanning speed of an atomic force microscopy(AFM),a smooth scanning pattern is elaborately devised via trajectory shaping in this paper,so as to achieve fast imaging without hardware ***,in the proposed scanning method,the piezoelectric actuator tracks a well-designed smooth periodic signal in x-direction,and simultaneously tracks a step signal in *** advantage of the proposed method is that it does not require additional data reprocessing to construct the morphology of the sample surface,while significantly increasing the scanning bandwidth restricted by the raster scanning ***,to directly utilize the height data collected by scanning to produce the sample morphology,the forward process in the common raster scanning mode is retained in the proposed method,the tracking signal in the forward process is thus set to a ramp function in *** addition,to ensure the continuity and smoothness of the entire tracking signal in x-direction,a segment of a sine curve is uniquely determined as the backward tracking signal by position and acceleration constraints,so as to ensure that the forward and backward curves are continuous and acceleration-continuous at the intersection ***,the frequency spectrum analysis of the designed smooth signal is carried out to exhibit the depressed amplitudes of high-frequency components,which demonstrates that the proposed method is able to reduce the resonance in AFM high-speed scanning,so as to improve the capacity of rapidly generating high-quality ***,convincing comparison experiments are implemented to verify the imaging performance of the designed scanning algorithm.

关键词： atomic force microscopy fast scanning smooth signal trajectory shaping

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青楷槭的化学成分研究

延边大学医学学报 2022年第2期45卷 84-87页

作者：赵久朕刘赛虎刘若萱王莹傲崔银峰张昌浩延边大学药学院吉林延吉133002 延边大学附属医院延边大学长白山天然药物研究教育部重点实验室吉林延吉133002

[目的]对青楷槭的乙酸乙酯萃取部分的化学成分进行研究.[方法]将青楷槭的茎皮部分用95%(体积分数)的乙醇浸泡后回流提取,减压浓缩得到青楷槭茎皮浸膏,再用乙酸乙酯溶剂萃取浸膏,减压浓缩,得到乙酸乙酯提取物72.6 g.利用多种分离方法对... 详细信息

[目的]对青楷槭的乙酸乙酯萃取部分的化学成分进行研究.[方法]将青楷槭的茎皮部分用95%(体积分数)的乙醇浸泡后回流提取,减压浓缩得到青楷槭茎皮浸膏,再用乙酸乙酯溶剂萃取浸膏,减压浓缩,得到乙酸乙酯提取物72.6 g.利用多种分离方法对提取物进行分离,再将分离得到的单体化合物通过^(1)H-NMR和^(13)C-NMR核磁进行结构鉴定.[结果]根据NMR核磁谱图确定了4种青楷槭中含有的化学成分.[结论]从青楷槭中共分离确定了4种化合物,其中化合物1、3和4为首次从青楷槭中分离得到,为青楷槭的进一步的化学研究提供了依据.

关键词：青楷槭化学成分结构鉴定

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高效液相色谱法测定青楷槭中红景天苷含量

延边大学医学学报 2022年第2期45卷 100-103页

作者：李嘉琦刘赛虎刘若萱王莹傲金莉莉张昌浩延边大学药学院吉林延吉133002 延边大学长白山天然药物研究教育部重点实验室吉林延吉133002

[目的]建立测定青楷槭中红景天苷含量的方法.[方法]采用乙醇回流法提取青楷槭中的红景天苷,通过正交试验判断提取时间、提取温度、乙醇体积分数等因素对所提取红景天苷含量的影响.以红景天苷标准品作为对照品,采用高效液相色谱法测定青... 详细信息

[目的]建立测定青楷槭中红景天苷含量的方法.[方法]采用乙醇回流法提取青楷槭中的红景天苷,通过正交试验判断提取时间、提取温度、乙醇体积分数等因素对所提取红景天苷含量的影响.以红景天苷标准品作为对照品,采用高效液相色谱法测定青楷槭中的红景天苷含量.[结果]青楷槭中红景天苷的最佳提取工艺为乙醇体积分数95%、提取时间1.0 h、提取温度70℃.在此条件下采用高效液相色谱法测得红景天苷的峰面积(Y)与体积分数(X)的回归方程为Y=1224609.1599 X-23697.2139(R~2=0.9990),RSD<2%.[结论]该测量方法较为精准,可用于青楷槭中红景天苷的含量测定.

关键词：青楷槭红景天苷高效液相色谱法

Recent advances in quantifying the inactive lithium and failure mechanism of Li anodes in rechargeable lithium metal batteries

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Journal of Energy Chemistry 2024年第9期96卷 226-248页

作者： Mingming Tao Junning Chen Hongxin Lin yingao Zhou Danhui Zhao Peizhao Shan Yanting Jin Yong Yang State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials and Department of ChemistryCollege of Chemistry and Chemical EngineeringTan Kah Kee Innovation Laboratory(IKKEM)Xiamen UniversityXiamen 361005FujianChina School of Engineering Westlake UniversityHangzhou 310024ZhejiangChina School of Energy Research Xiamen UniversityXiamen 361005FujianChina

Lithium metal is considered as the ultimate anode material for the next generation of high-energy density ***,non-uniform lithium dendrite growth,serious electrolyte consumption,and significant volume changes during lithium deposition/stripping processes lead to sustained accumulation of inactive lithium and poor cycling *** the formation and evolution of inactive lithium under different conditions and fully evaluating the complex failure modes are the key issues in this challenging *** article comprehensively reviews recent research progress on the quantification of formation and evolution of inactive lithium detected by different quantitative techniques in rechargeable lithium metal *** key research challenges such as failure mechanism,modification strategies and operando characterization of lithium metal anodes are systematically summarized and *** review provides a new angle of view to understand failure mechanism of lithium metal anodes and inspiration and guidance for the future development of rechargeable lithium metal batteries.

关键词： Lithium metal anodes Inactive lithium Quantitative technique Failure mechanism

Degradable Polyesters based on Oxygenated Fatty Acid Monomer

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Journal of Wuhan University of Technology(Materials Science) 2022年第4期37卷 753-759页

作者： CHENG Zhengzai LI Yi Lesly Dasilva Wandji Djouonkep ZENG Sheng wang Huan wang Linfeng CAI Shuanpu LIU Panpan HU Hai YANG yingao LI Jiaqi QIN Jisong Mario Gauthier Research Institute of Fine Organic Chemicals&Organic Materials at School of Chemistry and Chemical Engineering Wuhan University of Science and TechnologyWuhan 430081China Coal Conversion and New Carbon Materials Hubei Key Laboratory Wuhan University of Science and TechnologyWuhan 430081China Department of Petroleum Engineering Applied Chemistry in Oil and Gas FieldsYangtze UniversityWuhan 430100China Department of Chemistry University of Waterloo200 University Avenue WestWaterlooOntario N2L3G1Canada

A series of degradable polyesters was synthesized via melt polymerization of 3,6-dioxaoctane-1,8-dioic acid and five different diols,catalyzed by antimony trioxide(Sb_(2)O_(3)).The polymers were characterized by FT-IR and ^(1)H NMR spectroscopy,gel permeation chromatography(GPC)and differential scanning calorimetry(DSC)*** polydispersity index(PDI=M_(w)/M_(n))of the polyesters ranged from 1.55 to 1.99,the weight-average molecular weight(M_(w))from 1.8×10^(4) to 3.2×10^(4) Da,the melting point from 63 to 123℃,and the highest decomposition temperature observed was 363℃.The influence of the structure of the polymer chain on hydrolytic degradability was investigated with tests performed at three different values of *** findings obtained provide useful insight for the molecular design and the synthesis of degradable polyesters.

关键词： degradable polyesters melt polymerization thermal properties aliphatic-aromatic polyester