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饮用水处理过程中的环境风险研究

环境科学与管理 2021年第3期46卷 180-184页

作者：王儒静赵慕南崔崇威哈尔滨供水集团有限责任公司黑龙江哈尔滨150000 哈尔滨工业大学环境学院黑龙江哈尔滨150000

文章详细介绍了饮用水水源以及处理过程水质存在的潜在环境风险,水源特性、处理工艺、消毒剂种类、当地气候等原因决定了饮用水消毒副产物的生成量,特别指出氯化消毒所导致的消毒副产物的毒性及对人体健康产生的重大影响,需要认识消毒... 详细信息

文章详细介绍了饮用水水源以及处理过程水质存在的潜在环境风险,水源特性、处理工艺、消毒剂种类、当地气候等原因决定了饮用水消毒副产物的生成量,特别指出氯化消毒所导致的消毒副产物的毒性及对人体健康产生的重大影响,需要认识消毒副产物基本生成规律以及控制方法。哈尔滨市供水实践表明更换液氯为次氯酸钠消毒剂并通过对消毒剂量和接触时间的控制,是解决饮用水消毒副产物的一条有效途径。

关键词：饮用水消毒副产物环境风险分析

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规则库的合并以及冗余、环路和冲突的检测

计算机应用与软件 2016年第1期33卷 249-253,311页

作者：贾秀芳宋良图王儒敬李伟中国科学技术大学自动化系安徽合肥230026 中国科学院合肥智能机械研究所安徽合肥230031

针对知识库的建立需要耗费大量的时间和人力,同时相同或相似领域的知识库数量越来越多,提出利用现有规则知识库进行合并生成一个新的规则知识库,并对生成的新规则知识库进行知识冗余、环路和冲突的检测算法。首先,规则库利用有向超图来... 详细信息

针对知识库的建立需要耗费大量的时间和人力,同时相同或相似领域的知识库数量越来越多,提出利用现有规则知识库进行合并生成一个新的规则知识库,并对生成的新规则知识库进行知识冗余、环路和冲突的检测算法。首先,规则库利用有向超图来表示;其次,将有向超图利用其邻接矩阵来表示,那么规则库的合并可以转换成有向超图所对应的邻接矩阵的合并,并依据邻接矩阵求可达矩阵以及利用总可达矩阵来检测规则库中规则的冗余、环路和冲突。最后,算法的有效性通过实例加以验证。

关键词：规则库规则库合并有向超图邻接矩阵可达矩阵

Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan wang Fan Zhang Xingyu Zhou Qian wang Changyu Liu Yangyang Liu Hui wang Xiaojie Liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 C,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling over 200 cycles at a high 5 C current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate Cathode

EZH2-dependent myelination following sciatic nerve injury

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Neural Regeneration Research 2025年第8期20卷 2382-2394页

作者： Hui Zhu Li Mu Xi Xu Tianyi Huang Ying wang Siyuan Xu Yiting wang Wencong wang Zhiping wang Hongkui wang Chengbin Xue Research Center of Clinical Medicine Affiliated Hospital of Nantong UniversityKey Laboratory of Neuroregeneration of Jiangsu and Ministry of EducationCo-innovation Center of NeuroregenerationNMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology ProductsNantong UniversityNantongJiangsu ProvinceChina Medical School of Nantong University NantongJiangsu ProvinceChina Department of Neurology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Department of Rehabilitation Medicine Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Department of Critical Care Medicine Nantong Fourth People’s HospitalNantongJiangsu ProvinceChina

Demyelination and remyelination have been major focal points in the study of peripheral nerve regeneration following peripheral nerve ***,the gene regulatory network of regenerated myelin differs from that of native *** of enhancer of zeste homolog 2(EZH2)hinders the differentiation,maturation,and myelination of Schwann cells in *** further determine the role of EZH2 in myelination and recovery post-peripheral nerve injury,conditional knockout mice lacking Ezh2 in Schwann cells(Ezh2^(fl/fl);Dhh-Cre and Ezh2^(fl/fl);Mpz-Cre)were *** results show that a significant proportion of axons in the sciatic nerve of Ezh2-depleted mice remain *** highlights the crucial role of Ezh2 in initiating Schwann cell ***,we observed that 21 days after inducing a sciatic nerve crush injury in these mice,most axons had remyelinated at the injury site in the control nerve,while Ezh2^(fl/fl);Mpz-Cre mice had significantly fewer remyelinated axons compared with their wild-type *** suggests that the absence of Ezh2 in Schwann cells impairs myelin formation and *** conclusion,EZH2 has emerged as a pivotal regulatory factor in the process of demyelination and myelin regeneration following peripheral nerve *** EZH2 activity during these processes may offer a promising therapeutic target for the treatment of peripheral nerve injuries.

关键词： demyelination EZH2 myelination peripheral nerve injury PRC2 remyelination Schwann cells sciatic nerve crush sciatic nerve transection

RF Optimizer Model for Predicting Compressive Strength of Recycled Concrete

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 215-223页

作者： LIU Lin wang Liuyan wang Hui SUN Huayue School of Civil Engineering and Architecture Shenyang UniversityShenyang 110000China

Traditional machine learning(ML)encounters the challenge of parameter adjustment when predicting the compressive strength of reclaimed *** address this issue,we introduce two optimized hybrid models:the Bayesian optimization model(B-RF)and the optimal model(Stacking model).These models are applied to a data set comprising 438 observations with five input variables,with the aim of predicting the compressive strength of reclaimed ***,we evaluate the performance of the optimized models in comparison to traditional machine learning models,such as support vector regression(SVR),decision tree(DT),and random forest(RF).The results reveal that the Stacking model exhibits superior predictive performance,with evaluation indices including R2=0.825,MAE=2.818 and MSE=14.265,surpassing the traditional ***,we also performed a characteristic importance analysis on the input variables,and we concluded that cement had the greatest influence on the compressive strength of reclaimed concrete,followed by ***,the Stacking model can be recommended as a compressive strength prediction tool to partially replace laboratory compressive strength testing,resulting in time and cost savings.

关键词： machine learning recycled concrete compressive strength

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苍术药材的质量标准研究

中华中医药学刊 2017年第12期35卷 3046-3051,I0021页

作者：朱利霞黄青王茹静李鸿翔谭玉柱董小萍成都中医药大学药学院中药材标准化教育部重点实验室四川省中药资源系统研究与开发利用重点实验室-省部共建国家实验室培育基地四川成都611137 恩施土家族苗族自治州民族医院恩施土家族苗族自治州中心医院湖北恩施445000

目的:完善苍术药材的质量标准。方法:对10批茅苍术与10批北苍术药材,采用显微鉴别法、TLC法进行鉴别;并对其水分、杂质、总灰分、酸不溶性灰分、水溶性浸出物、醇溶性浸出物、重金属进行测定;采用HPLC法建立苍术药材的高效液相特征图谱... 详细信息

目的:完善苍术药材的质量标准。方法:对10批茅苍术与10批北苍术药材,采用显微鉴别法、TLC法进行鉴别;并对其水分、杂质、总灰分、酸不溶性灰分、水溶性浸出物、醇溶性浸出物、重金属进行测定;采用HPLC法建立苍术药材的高效液相特征图谱及测定苍术素含量。结果:苍术药材粉末的显微鉴别与薄层鉴别特征显著。在高效液相特征图谱中,20批苍术检出4个主要共有特征峰,其相似度为0.93~0.98。苍术药材中苍术素含量测定在0.5~60 mg·L-1范围内具有良好的线性关系(R2=0.999 1,n=13),平均加样回收率茅苍术为97.84%(1.62%),北苍术为98.63%(RSD为0.81%)。结论:本研究优化后的苍术药材质控方法符合中药质量控制的整体性、综合性及可适用性的要求,可用于苍术药材质量的综合评价。

关键词：茅苍术北苍术苍术素质量标准显微鉴别薄层色谱高效液相色谱

Intermolecular reductive coupling of aliphatic ketones with alkynes and alkenes by BCN photocatalysts

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Science China Chemistry 2025年第1期68卷 181-185页

作者： Yanping Xia Luyang Sun Jiajia Cheng Sibo wang Meifang Zheng Xinchen wang State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University

A photocatalytic process was developed for intermolecular reductive coupling of aliphatic ketones with alkynes/alkenes to furnish tertiary alcohols. Mechanistic studies support that boron carbonitrides(BCN) promote the single electron reduction of unactivated aliphatic ketones to generate ketyl radicals with visible light irradiation, which then react with alkynes and alkenes to afford the allylic and aliphatic alcohols, respectively. The heterogeneous photocatalytic system is compatible with diverse substrates including pharmaceutical-related molecules(43 examples) with reusability and scale-up experiments, verifying the complementary synthetic utility of this method to the homogeneous catalysts.

关键词： aliphatic ketones ketyl radical intermolecular cross-coupling tertiary alcohols

Achieving ultralow leakage current in Schottky-MIS cascode anode lateral field-effect diode based on AlGaN/GaN HEMT

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Science China(Information Sciences) 2025年第1期68卷 379-385页

作者： Fangzhou wang Changhong GAO Guojian DING Cheng YU Zhuocheng wang Xiaohui wang Qi FENG Ping YU Peng ZUO Wanjun CHEN Yang wang Haiqiang JIA Hong CHEN Bo ZHANG Zeheng wang Songshan Lake Materials Laboratory School of Microelectronics Southern University of Science and Technology State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Manufacturing Commonwealth Scientific and Industrial Research Organisation

In this paper,we design and fabricate a Schottky-metal-insulator-semiconductor（MIS） cascode anode GaN lateral field-effect diode（CA-LFED） to achieve ultralow reverse leakage current(ILEAK).The device based on AlGaN/GaN highelectron-mobility-transistor（HEMT） includes a normally-off MIS-controlled channel that is cascoded with a high barrier height Schottky *** reverse bias,the high electric-field is effectively prevented by the normally-off MIS-controlled channel *** with the high barrier height Schottky contact,this feature significantly suppresses the *** by the device fabrication,the CA-LFED with high breakdown voltage（BV）>600 V shows an ultralow ILEAKof 3.6×10-9A/mm as well as a low forward voltage drop（VF） of 2.2 *** performance suggests that the CA-LFED can be a promising candidate for ultralow ILEAKand better VF-ILEAKtrade-off GaN power diode applications.

关键词： Schottky-MIS cascode anode lateral field-effect diode (LFED) ultralow reverse leakage current ($I_{\rm{LEAK}}$) forward drop and reverse leakage trade-off AlGaN/GaN HEMTs

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AI-Enhanced Secure Data Aggregation for Smart Grids with Privacy Preservation

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Computers, Materials & Continua 2025年第1期82卷 799-816页

作者： Congcong wang Chen wang Wenying Zheng Wei Gu School of Software Nanjing University of Information Science and TechnologyNanjing210044China School of Information Science and Engineering Zhejiang Sci-Tech UniversityHangzhou310018China State Key Laboratory of Public Big Data Guizhou UniversityGuiyang550025China School of Computer Science and Technology(School of Artificial Intelligence) Zhejiang Sci-Tech UniversityHangzhou310018China School of Computer Science(School of Cyber Science and Engineering) Nanjing University of Information Science and TechnologyNanjing210044China

As smart grid technology rapidly advances,the vast amount of user data collected by smart meter presents significant challenges in data security and privacy *** research emphasizes data security and user privacy concerns within smart ***,existing methods struggle with efficiency and security when processing large-scale *** efficient data processing with stringent privacy protection during data aggregation in smart grids remains an urgent *** paper proposes an AI-based multi-type data aggregation method designed to enhance aggregation efficiency and security by standardizing and normalizing various data *** approach optimizes data preprocessing,integrates Long Short-Term Memory(LSTM)networks for handling time-series data,and employs homomorphic encryption to safeguard user *** also explores the application of Boneh Lynn Shacham(BLS)signatures for user *** proposed scheme’s efficiency,security,and privacy protection capabilities are validated through rigorous security proofs and experimental analysis.

关键词： Smart grid data security privacy protection artificial intelligence data aggregation