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Science China(Physics,Mechanics & Astronomy) 2014年第12期57卷 2259-2265页

作者： liu Yi Min liu rong wan Department of Physics Shaoguan University

A potentially practical scheme is proposed to realize optical quantum simulation of artificial Abelian gauge field in a scalable architecture consisting of cold atomic ensembles with optical *** the present model,the collective excitations of cold atomic ensembles can be converted to the bosonic modes within the low-excitation limit,where the structure of two-dimension(2D)square plaquette enables the polaritons to move like a charged particle subjected to an external magnetic *** find that the energy spectrum of this hybrid system exhibits a shape of Hofstadter *** work provides a different perspective to the quantum simulation of condensed matter and many-body physics in the context of cavity quantum *** experimental feasibility are justified using the existing techniques.

关键词： gauge field quantum information processing cavity array

Direct and rapid detection of serum amino acid and monoamine neurotransmitters to assist the diagnosis of panic disorder

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Science China Chemistry 2025年第1期68卷 377-384页

作者： Shiwen liu Xuerui wan Meng Zhao Jiaqi wang Weilan Wu Linlin You Yonggui Yuan Qian Xu rong Gao Key Laboratory of Environmental Medicine Engineering Ministry of Education School of Public Health Southeast University Key Laboratory of Modern Toxicology of Ministry of Education Department of Hygienic Analysis and Detection School of Public HealthNanjing Medical University Department of Psychosomatics and Psychiatry Zhongda Hospital School of Medicine Southeast University

The measurement of amino acid and monoamine neurotransmitters（NTs） in serum plays a central role in the identification and monitoring of clinical panic disorder（PD）. However, the strong polarity and chemical heterogeneity of NTs make direct extraction and rapid detection extremely challenging. Herein, we developed a strategy that integrated solid phase extraction based on magnetic Fe3O4coated with polydopamine（Fe3O4@PDA） and direct analysis of mass spectrometry in real time（DART-MS） for quantification of 10 NTs. We systematically investigated the optimal conditions of this strategy to achieve good accuracy and precision. Compared with existing magnetic solid phase extraction methods for NTs detection in biological samples, this strategy could adsorb more targets while having similar adsorption efficiencies, and the total process time was reduced by an average of 69.42%. We rapidly determined the metabolic abnormality of 6 types of NTs in the serum of PD patients and demonstrated their diagnostic accuracy. In addition, an outstanding feature of PD in which tryptophan was more metabolized by the KYN pathway and the 5-hydroxytryptamine pathway was inhibited could be elucidated by this strategy. Our results highlighted the potential ability of Fe3O4@PDA coupled with DART-MS to assist in the clinical diagnosis of PD.

关键词： neurotransmitters panic disorder magnetic solid phase extraction direct analysis of mass spectrometry in real time

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混凝-膜生物反应器工艺处理印染废水

中南大学学报（自然科学版） 2009年第6期40卷 1488-1493页

作者：刘久清刘婉蓉蒋彬中南大学冶金科学与工程学院湖南长沙410083

采用膜生物反应器对印染废水进行好氧生物活性处理,并对处理水样的化学耗氧量、生物耗氧量、色度和浊度等各项水质指标进行连续测定、分析与处理。实验结果表明:膜生物反应器在混合液悬浮固体(MLSS)质量浓度约5～8g/L的条件下运行,当系... 详细信息

采用膜生物反应器对印染废水进行好氧生物活性处理,并对处理水样的化学耗氧量、生物耗氧量、色度和浊度等各项水质指标进行连续测定、分析与处理。实验结果表明:膜生物反应器在混合液悬浮固体(MLSS)质量浓度约5～8g/L的条件下运行,当系统进水的化学耗氧量(CODCr)为750～900mg/L,生物耗氧量(BOD)为130～250mg/L,色度为100～200倍时,出水CODCr去除率可高达86.6%,BOD、色度、浊度以及悬浮固体(SS)质量浓度几乎为0,处理效果较好。采用混凝-膜生物反应器工艺处理印染废水技术可行。

关键词：印染废水混凝膜生物反应器去除效果

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基于滑动窗口的关联规则增量式更新算法

计算机应用 2008年第12期28卷 3224-3226页

作者：夏英刘婉蓉重庆邮电大学中韩GIS研究所重庆400065

现有的关联规则算法大多都致力于解决增量式更新问题,需要多次扫描数据集,无法对海量数据进行有效处理。针对此问题,提出了基于滑动窗口的关联规则增量式更新算法(SWIUA),利用滑动窗口进行数据更新,挖掘出用户感兴趣的关联规则。该算法... 详细信息

现有的关联规则算法大多都致力于解决增量式更新问题,需要多次扫描数据集,无法对海量数据进行有效处理。针对此问题,提出了基于滑动窗口的关联规则增量式更新算法(SWIUA),利用滑动窗口进行数据更新,挖掘出用户感兴趣的关联规则。该算法只需要扫描原始数据集和更新的数据各一遍,降低了I/O时间;并采用优化策略对候选项集过滤和删除,提高了关联规则的挖掘性能,能有效处理大量新增数据。

关键词：滑动窗口关联规则增量式更新频繁项集

New types of singular solutions of conformal Q-curvature equations

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Acta Mathematica Sinica,English Series 2025年

作者： Zongming Guo Zhongyuan liu Fangshu wan Department of Mathematics Henan Normal University School of Mathematics and Statistics Henan University School of Mathematical Sciences Anhui University

We construct radial and non-radial singular solutions u ∈ C4（B{0}） with a non-removable singular point x = 0 for the conformal Q-curvature equation:■where B = {x ∈ R4: |x| D0≥ 0, and satisfying ■Moreover, detailed asymptotic expansions near x = 0 of these radial and non-radial singular solutions can be established. As an application, we can also obtain the existence of two types of solutions u ∈ C4（R4■） to the problem ■ satisfying |x|-2u（x） →-D D0, and satisfying u（x） = o（|x|2） uniformly as |x| → ∞.

关键词：

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界面聚合反应制备中空纤维纳滤膜的数学模型

中南大学学报（自然科学版） 2009年第2期40卷 294-298页

作者：刘久清李新海王志兴刘婉蓉中南大学冶金科学与工程学院湖南长沙410083

采用界面聚合反应成膜机理制备中空纤维纳滤膜,建立在非稳态条件下化学反应-扩散控制的数学模型,并通过有针对性的简化,使该模型适用于扩散控制。以哌嗪-三乙胺水溶液作为水相,均苯三甲酰氯作为有机相单体,甲苯作为有机相溶剂进行界面... 详细信息

采用界面聚合反应成膜机理制备中空纤维纳滤膜,建立在非稳态条件下化学反应-扩散控制的数学模型,并通过有针对性的简化,使该模型适用于扩散控制。以哌嗪-三乙胺水溶液作为水相,均苯三甲酰氯作为有机相单体,甲苯作为有机相溶剂进行界面聚合反应制备中空纤维膜,进而通过实验对数学模型进行验证。研究结果表明:通过模型计算,在反应达到10s时,复合膜的厚度约为0.9μm;从实验中甲苯体系反应10s后得到的扫描电镜照片可以看到,此时复合膜的厚度为1μm左右,说明界面聚合反应成膜原理能正确地指导建立数学模型;模型预测值与实验数据基本吻合;所建立的数学模型能够较好地揭示界面聚合反应成膜过程的实质。

关键词：复合膜界面聚合中空纤维膜数学模型

Preparation of Modified Composite Nanofiltration Membrane Synergistically Using Carboxylic Multi- walled Carbon Nanotube and β-cyclodextrin

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 232-239页

作者： liu Peng MAO Junpeng FANG Yanfeng YU Yunwu CHEN Changxiu TANG Ning wan Ye GU Yaxin liu Yunxue wanG Lihua School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China

A new modified blend ultrafiltration(UF)membrane with good hydrophilicity,high porosity and excellent anti-fouling performance was developed by using carboxylic multi-walled carbon nanotube(CMWCNT)as casting solution ***,a composite nanofiltration(NF)membrane with large water flux and good retention rate was fabricated by using the PVDF/CMWCNT blend UF membrane as the substrate,and polyvinyl alcohol(PVA),β-cyclodextrin(β-CD)and polyethylenimine(PEI)as the coating *** results show that with the appropriate addition of CMWCNT in the casting solution,the surface roughness,porosity and recovery rate of the PVDF/CMWCNT blend UF membrane is obviously *** water flux of blend UF membrane is significantly improved when the CMWCNT content increases from 0 wt%to 0.2 wt%.The water flux of blend UF membrane with 0.2 wt%CMWCNT is 162.7 L/(m^(2)·h),which is 44.3%higher than that of the pure PVDF ***β-CD content is 0.8 wt%,the retention rate of Congo red by PVDF/CMWCNT/β-CD composite NF membrane reaches 98.7%,which is 28.3%higher than that of single PVA/PEI modified *** research will provide a new idea and simple method for developing novel high-performance composite NF membranes.

关键词： CMWCNT cyclodextrin nanofiltration membrane

Inhibiting ceramide synthase 5 expression in microglia decreases neuroinflammation after spinal cord injury

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Neural Regeneration Research 2025年第10期20卷 2955-2968页

作者： Wei Zhang Yubao Lu Ruoqi Shen Yingjie Wu Chenrui liu Xingxing Fang Liangming Zhang Bin liu Limin rong Department of Spine Surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina National Medical Products Administration(NMPA)Key Laboratory for Quality Research and Evaluation of Cell Products GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina

Microglia,the resident monocyte of the central nervous system,play a crucial role in the response to spinal cord ***,the precise mechanism remains *** investigate the molecular mechanisms by which microglia regulate the neuroinflammatory response to spinal cord injury,we performed single-cell RNA sequencing dataset analysis,focusing on changes in microglial *** found that the MG1 subpopulation emerged in the acute/subacute phase of spinal cord injury and expressed genes related to cell pyroptosis,sphingomyelin metabolism,and neuroinflammation at high ***,we established a mouse model of contusive injury and performed intrathecal injection of siRNA and molecular inhibitors to validate the role of ceramide synthase 5 in the neuroinflammatory responses and pyroptosis after spinal cord ***,we established a PC12-BV2 cell co-culture system and found that ceramide synthase 5 and pyroptosis-associated proteins were highly expressed to induce the apoptosis of neuron *** ceramide synthase 5 expression in a mouse model of spinal cord injury effectively reduced ***,ceramide synthase 5-induced pyroptosis was dependent on activation of the NLRP3 signaling *** ceramide synthase 5 expression in microglia in vivo reduced neuronal apoptosis and promoted recovery of neurological ***2g7 formed a“bridge”between sphingolipid metabolism and ceramide synthase 5-mediated cell death by inhibiting the NLRP3 signaling ***,these findings suggest that inhibiting ceramide synthase 5 expression in microglia after spinal cord injury effectively suppressed microglial pyroptosis mediated by NLRP3,thereby exerting neuroprotective effects.

关键词： ceramide synthase 5 gasdermin D microglia neuroinflammation NLRP3 nuclear factor kappa B Pla2g7 pyroptosis sphingomyelin metabolism spinal cord injury

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转子的弯扭耦合振动研究

汽轮机技术 2009年第2期51卷 119-121页

作者：姚学诗刘荣万韶关学院机电系广东韶关512022

利用预应力法研究转子的弯扭耦合振动,计算了在弯扭耦合振动过程中转轴上的最大应力。分析了弯扭耦合振动的原因。

关键词：预应力弯扭耦合振动角速度

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一种改进的远程用户身份认证方案

计算机工程与科学 2021年第11期43卷 1959-1965页

作者：曹守启何鑫刘婉荣上海海洋大学工程学院上海201306

物联网的快速发展给人们的生产生活带来了极大的便利,但是如何保证用户的信息安全是物联网发展中必须解决的一个重要问题。为了解决该问题,必须在增加较低计算量的前提下,提出安全性更高的身份认证协议。对Nikooghadam等人提出的保护用... 详细信息

物联网的快速发展给人们的生产生活带来了极大的便利,但是如何保证用户的信息安全是物联网发展中必须解决的一个重要问题。为了解决该问题,必须在增加较低计算量的前提下,提出安全性更高的身份认证协议。对Nikooghadam等人提出的保护用户身份的协议进行了分析,并在此基础上提出了一种改进的远程用户身份认证协议。采用BAN逻辑进行验证,也进行了性能比较与计算效率分析,结果表明,提出的协议在增加较低计算量的前提下具有更高的安全性。

关键词：身份认证智能卡匿名物联网