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Journal of Rare Earths 2023年第7期41卷 1031-1041,I0003页

作者： Mengjie Fan qingping zou Jining Liu Yingwen Chen Jianliang Zhu Shubao Shen Research and Development Center for Watershed Environmental Eco-Engineering Beijing Normal UniversityZhuhai 519087China College of Biotechnology and Pharmaceutical Engineering Nanjing Tech UniversityNanjing 210009China

Surfactant-modified CeO_(2)@TiO_(2) core-shell nanostructure catalysts were prepared by coprecipitation with the addition of sodium dodecyl sulfonate(SDS),and their catalytic oxidation of dichloromethane(DCM) was studied.A 90% DCM conversion efficiency is obtained at 300℃ with the CeO_(2)@TiO_(2)SDS catalyst,and its catalytic stability in the 55 h test period is better than that of Ce/TiO_(2) and CeO_(2)@TiO_(2).Based on the characterization of CeO_(2)@TiO_(2)SDS,the dispersion of active components is promoted due to the inhibition of crystal growth with the introduction of SDS.The improvement of surface acidity and redox capacity is beneficial to the enhancement of catalytic activity.The higher adsorbed oxygen content on the surface of the CeO_(2)@TiO_(2)SDS catalyst is responsible for the better catalytic stability.Generally,a novel method was developed to design catalytic oxidation catalysts for the treatment of chlorinated volatile organic compounds in future applications.

关键词： Surfactant Oxidation Cerium titanium system Core-shell structure catalyst Dichloromethane Rare earths

Steering Against Wind： A New Network of NamiRNAs and Enhancers

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Genomics, Proteomics & Bioinformatics 2017年第5期15卷 331-337页

作者： ying liang qingping zou wenqiang yu Laboratory of RNA Epigenetics.Institutes of Biomedical Sciences&Department of General Surgery Huashan Hospital Cancer M etastasis Institute Fudan UniversityShanghai 200032China Department of Biochemistry and Molecular Biology Shanghai Medical College MOE Key Laboratory of Metabolism and Molecular MedicineDepartment of Molecular BiologyFudan UniversityShanghai 200032China Collaborative Innovation Center for Genetics and Development School of Life SciencesFudan UniversityShanghai 200433China

MicroRNAs （miRNAs） are a class of endogenous non-coding RNAs with regulatory functions. Traditionally, miRNAs are thought to play a negative regulatory role in the cytoplasm by binding to the YUTR of target genes to degrade mRNA or inhibit translation. However, it remains a challenge to interpret the potential function of many miRNAs located in the nucleus. Recently, we reported a new type of miRNAs present in the nucleus, which can activate gene expres- sion by binding to the enhancer, and named them nuclear activating miRNAs （NamiRNAs）. The discovery of NamiRNAs showcases a complementary regulatory mechanism of miRNA, demon- strating their differential roles in the nucleus and cytoplasm. Here, we reviewed miRNAs in nucleus to better understand the function of NamiRNAs in their interactions with the enhancers. Accord- ingly, we propose a NamiRNA--enhancer-target gene activation network model to better under- stand the crosstalk between NamiRNAs and enhancers in regulating gene transcription. Moreover, we hypothesize that NamiRNAs may be involved in cell identity or cell fate determina- tion during development, although further study is needed to elucidate the underlying mechanisms in detail.

关键词： Nuclear activating miRNAs Tissue-specific enhancers Transcriptional gene activa-tion Cell identity Cell fate

Effect of Na^(+)on catalytic performance of CoCe/ZSM-5 catalysts for oxidation of toluene

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Journal of Rare Earths 2021年第4期39卷 409-418页

作者： qingping zou Mingqing Liu Mengjie Fan Yaping Ding Yingwen Chen Shubao Shen College of Biotechnology and Pharmaceutical Engineering Nanjing Tech UniversityNanjing 210009China Nanjing Institute of Environmental Sciences Ministry of Ecology and EnvironmentNanjing 210042China

A CoCe/ZSM-5 catalyst was prepared by ultrasonic-assisted impregnation for the catalytic combustion of toluene.To study the effect of Na+on catalytic performance of CoCe/ZSM-5 catalysts,a series of different Si/Al ZSM-5 zeolites and catalysts doped with Na were synthesized.The experimental results show that 0.71 wt%Na+can inhibit active growth,generate more active small crystal grains,and promote improvement of the catalytic activity by the grain boundary segregation block mechanism,and the catalyst with 0.71 wt%of Na shows toluene conversion of 90 vol%at 250℃.Over 0.71 wt%of Na+content will neutralize the acid centre of the catalyst,lowering the specific surface area of the catalyst and resulting in a gradual decrease in the catalytic activity.

关键词： ZSM-5 zeolite Catalytic combustion Toluene Grain boundary segregation block mechanism Rare earths

A Preconditioned Implicit Free-Surface Capture Scheme for Large Density Ratio on Tetrahedral Grids

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Communications in Computational Physics 2012年第1期11卷 215-248页

作者： Xin Lv qingping zou D.E.Reeve Yong Zhao International Center for Numerical Methods in Engineering(CIMNE)-Singapore 51 Science Park Road#04-20The Aries Singapore Science Park II117586Singapore Department of Civil and Environmental Engineering University of MaineOronoMaine 04469USA Center for Coastal Dynamics and Engineering School of EngineeringUniversity of PlymouthDevon PL48AAUnited Kingdom College of Engineering Alfaisal UniversityAl Maathar RoadP.O.Box 50927Riyadh 11533Kingdom of Saudi Arabia

We present a three dimensional preconditioned implicit free-surface capture scheme on tetrahedral grids.The current scheme improves our recently reported method[10]in several aspects.Specifically,we modified the original eigensystem by applying a preconditioning matrix so that the new eigensystem is virtually independent of density ratio,which is typically large for practical two-phase problems.Further,we replaced the explicit multi-stage Runge-Kutta method by a fully implicit Euler integration scheme for the Navier-Stokes(NS)solver and the Volume of Fluids(VOF)equation is now solved with a second order Crank-Nicolson implicit scheme to reduce the numerical diffusion effect.The preconditioned restarted GeneralizedMinimal RESidual method(GMRES)is then employed to solve the resulting linear system.The validation studies show that with these modifications,the method has improved stability and accuracy when dealing with large density ratio two-phase problems.

关键词： VOF level set free surface unstructured finite volume method implicit method restarted GMRES tetrahedral grid

A Level Set Immersed Boundary Method for Water Entry and Exit

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Communications in Computational Physics 2010年第7期8卷 265-288页

作者： Yali Zhang qingping zou Deborah Greaves Dominic Reeve Alison Hunt-Raby David Graham Phil James Xin Lv School of Marine Science and Engineering University of PlymouthUnited KingdomPL48AA School of Mathematics and Statistics University of PlymouthUnited KingdomPL48AA

The interaction between free surface flow and structure is investigated using a new level set immersed boundary method.The incorporation of an improved immersed boundary method with a free surface capture scheme implemented in a Navier-Stokes solver allows the interaction between fluid flow with free surface and moving body/bodies of almost arbitrary shape to be modelled.A new algorithm is proposed to locate exact forcing points near solid boundaries,which provides an accurate numerical solution.The discretized linear system of the Poisson pressure equation is solved using the Generalized Minimum Residual(GMRES)method with incomplete LU preconditioning.Uniform flow past a cylinder at Reynolds number Re=100 is modelled using the present model and results agree well with the experiment and numerical data in the literature.Water exit and entry of a cylinder at the prescribed velocity is also investigated.The predicted slamming coefficient is in good agreement with experimental data and previous numerical simulations using a ComFlow model.The vertical slamming force and pressure distribution for the free falling wedge is also studied by the present model and comparisons with available theoretical solutions and experimental data are made.

关键词： Level set method immersed boundary method slamming coefficient water entry and exit free surface fluid-structure interaction

甘油微胶囊搭载硅烷环氧共混涂层的耐蚀性研究

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材料导报 2024年第7期38卷 249-254页

作者：赵清平亢淑梅邹方正朱忠博李鹏宇辽宁科技大学材料与冶金学院沈阳114051

为了提高金属基体的耐蚀性,采用溶剂蒸发法制备了水包油乳液体系的聚砜包覆甘油的微胶囊,并在基体表面制备了含有微胶囊的硅烷环氧共混涂层。通过扫描电镜、红外、热重、电化学分析对微胶囊和含有微胶囊的环氧硅烷共混涂层的形貌结构、... 详细信息

为了提高金属基体的耐蚀性,采用溶剂蒸发法制备了水包油乳液体系的聚砜包覆甘油的微胶囊,并在基体表面制备了含有微胶囊的硅烷环氧共混涂层。通过扫描电镜、红外、热重、电化学分析对微胶囊和含有微胶囊的环氧硅烷共混涂层的形貌结构、热稳定性、耐蚀性等进行研究。结果表明:以聚砜为壁材包裹的微胶囊的平均粒径为150μm,且聚砜对甘油的包封效率为12%,胶囊的热分解温度为320℃。在3.5%(质量分数,下同)NaCl溶液浸泡下,当硅烷的添加量为3%时,硅烷的水解缩合弥补了环氧涂层的缺陷,使硅烷环氧共混涂层的阻抗模值提高到8×10^(6)Ω·cm^(-2);此外,添加微胶囊的硅烷环氧涂层由于微胶囊中缓释剂的释放吸附在金属基体表面,延缓了金属腐蚀的速度,阻抗模值提高到2×10^(7)Ω·cm^(-2),耐蚀性增强。

关键词：甘油聚砜微胶囊自修复涂层耐蚀性

基于BSG深度学习模型的中医药智能问答系统研究:以方剂和中药为例

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Digital Chinese Medicine 2024年第1期7卷 47-55页

作者：李冉任高晏峻峰邹北骥刘青萍湖南中医药大学信息科学与工程学院湖南长沙410208 中南大学计算机学院湖南长沙410083

目的基于深度学习的方法,利用知识图谱构建中医药知识库,探寻联合模型在中医药智能问答系统的应用。方法以《方剂学》和《中药学》规划教材为基础建立知识图谱,作为智能问答系统的知识来源,本研究提出一种BERT+Slot-Gated(BSG)深度学习... 详细信息

目的基于深度学习的方法,利用知识图谱构建中医药知识库,探寻联合模型在中医药智能问答系统的应用。方法以《方剂学》和《中药学》规划教材为基础建立知识图谱,作为智能问答系统的知识来源,本研究提出一种BERT+Slot-Gated(BSG)深度学习模型,获取用户自然问题中包含的中医药实体和问句意图,通过实体和意图在知识图谱检索答案返回给用户,运用Flask框架和BSG模型研发中医药智能问答系统。结果构建了包含3149个实体和6891个关系三元组的中医药知识图谱,通过问题语料测试,本系统在回答中医药20类问题的实体识别F1值为0.9969,意图识别准确率为99.75%,表明本系统具有较高的实用性和可行性,并通过微信公众号平台实现了用户与系统交互。结论本文所提出的BSG模型通过提高向量维度在实验中取得了较好的结果,表明联合模型方法的有效性,可为实现中医药智能问答系统提供新的研究思路。

关键词：中医药深度学习知识图谱智能问答系统 BERT+Slot-Gated模型

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不同流线型潜体抛石基床上的波生紊流场结构

哈尔滨工程大学学报 2021年第6期42卷 800-809页

作者：蒋学炼赵悦邹青萍柳淑学天津城建大学天津市土木建筑结构防护与加固重点实验室天津300384 大连理工大学海岸和近海工程国家重点实验室辽宁大连741852 赫瑞瓦特大学基础设施与环境研究所爱丁堡EH144AS

为了研究不同流线型潜体抛石基床上的波生紊流场结构,本文采用粒子图像测速技术获取了规则波作用下的瞬时速度场。周期平均速度场显示,迎浪区域的涡旋主要生成于波谷过程,在迎浪堤脚处形成一个小型周期时均环流系统,矩形潜体迎浪堤角附... 详细信息

为了研究不同流线型潜体抛石基床上的波生紊流场结构,本文采用粒子图像测速技术获取了规则波作用下的瞬时速度场。周期平均速度场显示,迎浪区域的涡旋主要生成于波谷过程,在迎浪堤脚处形成一个小型周期时均环流系统,矩形潜体迎浪堤角附近还存在一个更强的周期时均环流。背浪区域的涡旋主要生成于波峰过程,形成一对周期时均反向环流,同时背浪基肩上存在一个紊流遮蔽区。矩形潜体的相平均涡旋更靠近堤背,弧形潜体和半圆潜体的相平均涡旋则大致水平向下游对流。上述结果表明,潜体对流场的干扰导致波面和速度场变得不对称,进而影响建筑物的局部冲淤和结构受力,而潜体的线型对背浪面涡旋的分布和传递有显著影响。

关键词：潜体基床规则波粒子图像测速紊流速度场涡量环流

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基于术语词典的中医医案实体抽取研究

湖南中医药大学学报 2024年第6期44卷 1110-1116页

作者：张伦伦任高邹北骥刘青萍湖南中医药大学信息科学与工程学院湖南长沙410208 中南大学计算机学院湖南长沙410083

目的针对中医医案开展症状、病因病机、治法、用药、处方、取穴6类实体的抽取研究,为中医医案知识图谱构建和中医智能辅助诊疗提供基础。方法根据中医医案文本的特点,提出一个可以动态更新的术语词典方法用于分词,并在中医脑系疾病医案... 详细信息

目的针对中医医案开展症状、病因病机、治法、用药、处方、取穴6类实体的抽取研究,为中医医案知识图谱构建和中医智能辅助诊疗提供基础。方法根据中医医案文本的特点,提出一个可以动态更新的术语词典方法用于分词,并在中医脑系疾病医案和ChineseBLUE/cEHRNER、ChineseBLUE/cMedQANER、CBLUE/CMeEE 3个公开数据集上验证该方法的有效性。结果使用术语词典的模型在准确率、精确率、召回率和F1值上均高于未使用术语词典的模型,在测试集和验证集上,F1值分别为92.07%和93.04%。结论融合动态更新的术语词典分词方法的模型,能够增强中医领域特定术语和新实体的识别能力,提高中医医案关键信息识别的准确率,推进中医药知识的传承与发展。

关键词：中医医案脑系疾病术语词典实体抽取 IDCNN-CRF模型

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六官能UV固化脲-异丁醛-甲醛树脂的合成

化工新型材料 2017年第11期45卷 116-119页

作者：邹庆鹏黄国辉崔艳艳刘晓暄广东工业大学材料与能源学院广东省光固化先进材料工程技术研究中心广州510006

脲-异丁醛-甲醛树脂(UIF)是一种效果显著的涂料助剂,可以改善涂膜的硬度、光泽和附着力等性能。将其应用在光固化涂料体系中,因其分子结构不含能固交联固化的活性基团,无法参与固化成膜,所以固化膜的耐溶剂性与耐化学试剂性较差。以硼... 详细信息

脲-异丁醛-甲醛树脂(UIF)是一种效果显著的涂料助剂,可以改善涂膜的硬度、光泽和附着力等性能。将其应用在光固化涂料体系中,因其分子结构不含能固交联固化的活性基团,无法参与固化成膜,所以固化膜的耐溶剂性与耐化学试剂性较差。以硼氢化钠、异佛尔酮二异氰酸酯(IPDI)、季戊四醇三丙烯酸酯(PETA)改性UIF,通过预封端法制备了六官能UV固化脲-异丁醛-甲醛树脂(UVUIF)。对反应温度和催化剂用量进行了探讨与研究。该树脂具有良好的热稳定性。添加到涂料中,可以改善涂膜附着力、硬度、光泽度,减少光固化时间。

关键词：脲-异丁醛-甲醛树脂六官能度光固化涂料涂膜性能