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Polyelectrolyte complex-based thermochromic hydrogels containing carbonized polymer dots for smart windows with fast response,excellent solar modulation ability,and high durability

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SmartMat 2024年第2期5卷 124-136页

作者： Yuting Wang Xu fang Siheng Li Ni An Hongyu pan Junqi Sun State Key Laboratory of Supramolecular Structure and Materials Jilin UniversityChangchunChina

Thermochromic smart windows have gained increasing popularity in light modulation and energy management in ***,the fabrication of flexible thermochromic smart windows with high luminous transmittance(Tlum),tailorable critical temperature(τc),strong solar modulation ability(ΔTsol),and long-term durability remains a huge *** this study,hydrogel-based thermochromic smart windows are fabricated by sandwiching thermochromic hydrogels of polyallylamine hydrochloride,polyacrylic acid,and carbonized polymer dots(CPDs)complexes between two pieces of transparent *** from the incorporation of nanosized CPDs,the thermochromic hydrogel has an ultrahigh Tlum of~98.7%,a desirableτc of~24.2℃,aΔTsol of~89.3%and a rapid transition time of~3 s from opaque state to transparent ***,the thermochromic hydrogel exhibits excellent anti-freezing ability,tight adhesion toward various substrates,and excellent self-healing *** self-healing capability enables the fabrication of large-area smart windows by welding multiple hydrogel *** smart windows retain their original thermochromic properties after being stored under ambient conditions for at least 147 days or undergoing 10,000 uninterrupted heating/cooling *** model houses with smart windows can achieve a temperature reduction of 9.2℃,demonstrating the excellent indoor temperature modulation performance of the smart windows.

关键词： carbonized polymer dots polyelectrolyte complexes smart windows thermochromic hydrogels

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宏观与微观结合研究多囊卵巢综合征

中国中西医结合杂志 2008年第3期28卷 269-272页

作者：俞瑾潘芳上海坤泰女性健康中心上海200032 上海泰坤堂中医医院

对多囊卵巢综合征(PCOS)分类法中各型患者的治疗前后进行了宏观和微观的对照,从理论上分辨和解释中医辨证临床表现的实验室基础;并以实验室测定结果,有证据地补充提出中医辨证的具体内容,对中医和中西医结合临床及缺少实验室测定的广大... 详细信息

对多囊卵巢综合征(PCOS)分类法中各型患者的治疗前后进行了宏观和微观的对照,从理论上分辨和解释中医辨证临床表现的实验室基础;并以实验室测定结果,有证据地补充提出中医辨证的具体内容,对中医和中西医结合临床及缺少实验室测定的广大基层单位的PCOS治疗有较大实用价值。

关键词：宏观和微观结合中医辨证多囊卵巢综合征

表面增强拉曼光谱准确检测玉米中杀螟硫磷农药残留

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光谱学与光谱分析 2018年第9期38卷 2782-2787页

作者：黄林生王芳翁士状潘芳芳梁栋安徽大学安徽省农业生态大数据工程实验室安徽合肥230601

杀螟硫磷是一种在农作物上广泛使用的有机磷杀虫剂,常用于玉米上害虫的防治。过量或者不合理施用导致的残留积累关系到食品安全和人体健康。常规检测杀螟硫磷的方法有气相色谱-质谱法、高效液相色谱法,其准确性虽好,但存在需要专业人员... 详细信息

杀螟硫磷是一种在农作物上广泛使用的有机磷杀虫剂,常用于玉米上害虫的防治。过量或者不合理施用导致的残留积累关系到食品安全和人体健康。常规检测杀螟硫磷的方法有气相色谱-质谱法、高效液相色谱法,其准确性虽好,但存在需要专业人员介入、样品前处理复杂、检测时间长等缺点。表面增强拉曼光谱(SERS)法具有分析速度快、检测灵敏度高和特异性好等优点,被广泛应用于农产品中痕量残留的快速检测。利用表面增强拉曼光谱结合化学计量学方法实现玉米中杀螟硫磷残留的准确检测。以两步种子生长法合成的纳米金棒作为拉曼增强基底,测量600~1 800cm^(-1)范围内的拉曼光谱。对比杀螟硫磷乙醇溶液和金棒的光谱,确定杀螟硫磷的特征峰在650,830,1 082,1 241,1 344和1 581cm^(-1)处。采用简单预处理方法快速提取玉米中的杀螟硫磷残留。将受污染的玉米样品粉碎后,利用乙醇溶剂对残留进行两次提取,每次获取的提取液经离心获得上清液,将上清液合并混匀,在水浴中蒸发浓缩,浓缩后的上清液用于采集SERS光谱。每个浓度制备50个平行样本。各浓度残留提取液中的残留参考值采用色质联用方法测定。对比残留提取液的光谱,1 082,1 241和1 581cm^(-1)处特征峰强度随残留浓度的降低而迅速变弱甚至消失,650,830和1 344cm^(-1)处的特征峰直至残留浓度为0.48μg·mL^(-1)时依然可见。当浓度低至0.37μg·mL^(-1)时,所测光谱与空白提取液光谱相似。采用主成分分析(PCA)提取不同浓度杀螟硫磷残留光谱的主体信息,其中残留为0.37μg·mL^(-1)和空白提取液光谱的主成分得分重叠,进而判断SERS方法对玉米中杀螟硫磷残留的检测限可达到0.48μg·mL^(-1),低于国家规定的农作物中最大残留限,体现出SERS检测的高灵敏性。选取浓度为14.25μg·mL^(-1)的50个样本分析其650,830和1344cm^(-1)处的特征峰强度变化可知,所采集的光谱呈现出较好的重复性,相对标准偏差(RSD)值仅为3.12%。对杀螟硫磷残留的定量分析采用支持向量机回归(SVR)实现,Savitzky-Golay卷积平滑和小波变换(WT)用于本次光谱数据的预处理。校正集和预测集样本的划分采用Kennard-Stone算法实现,模型的性能采用校正均方根误差(RMSEC)、校正集决定系数(R_c^2)、预测均方根误差(RMSEP)和预测集决定系数(R_p^2)评估。最优模型为SVR结合WT所构建的,具有最小的预测误差,其中校正集的RMSEC=0.103 2μg·mL^(-1),R_c^2=0.999 74,预测集的RMSEP=0.134 1μg·mL^(-1),R_p^2=0.999 60。同时,最优模型的预测值与色质联用法所测值基本一致,其预测回收率为95.31%~100.66%。以上表明,SERS结合化学计量学方法检测玉米中杀螟硫磷残留是准确可行的,且有望推广到农作物中多种农药残留的检测,为农产品的安全检测提供一种新思路。

关键词：表面增强拉曼光谱杀螟硫磷玉米支持向量机回归

公路桥梁深水高桩基础水平抗撞击力的非线性有限元分析

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华南理工大学学报（自然科学版） 2010年第3期38卷 8-11,24页

作者：潘放郭馨艳华南理工大学土木与交通学院广东广州510640

因船舶撞击造成的桥梁倒塌事故,凸显了桥梁基础水平抗撞击能力合理评估的重要性.为了满足桥梁船撞设计与评估的需要,文中提出了基于非线性有限元分析的深水高桩基础水平抗力评估方法.通过对G325国道某大桥的实例分析,并与基于我国规范... 详细信息

因船舶撞击造成的桥梁倒塌事故,凸显了桥梁基础水平抗撞击能力合理评估的重要性.为了满足桥梁船撞设计与评估的需要,文中提出了基于非线性有限元分析的深水高桩基础水平抗力评估方法.通过对G325国道某大桥的实例分析,并与基于我国规范设计思想的计算方法进行对比,发现所提方法适用于该类桥梁桩基础的防撞设计.

关键词：船舶撞击深水高桩基础水平抗力非线性有限元方法

基于不同理论模式的老年人心理健康评估的研究进展

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山东大学学报（医学版） 2017年第9期55卷 1-5页

作者：潘芳山东大学基础医学院医学心理学与伦理学系山东济南250012

2012年,我国已提前进入老龄化社会,60岁以上的老年人已占总人口的10%。为应对老年人群对生活照料、医疗保健和康复护理的需求以及提供适合老年人心理特点的专业性服务,需要对老年人的心理健康状况进行评估。不同的理论模式对心理健康的... 详细信息

2012年,我国已提前进入老龄化社会,60岁以上的老年人已占总人口的10%。为应对老年人群对生活照料、医疗保健和康复护理的需求以及提供适合老年人心理特点的专业性服务,需要对老年人的心理健康状况进行评估。不同的理论模式对心理健康的标准理解不同,评估角度和方法各异。本文综述了基于病理心理学、心理卫生学、积极心理学和积极老龄化模式的心理健康标准和评估方法。

关键词：心理健康老年人心理评估老龄化

Nonalcoholic fatty liver disease and microvascular complications in type 2 diabetes

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World Journal of Gastroenterology 2013年第20期19卷 3134-3142页

作者： Wen-Shan Lv Rui-Xia Sun Yan-Yan Gao Jun-Ping Wen Rong-fang pan Li Li Jing Wang Yu-Xin Xian Cai-Xia Cao Ming Zheng the Department of Internal Medicine the Affiliated Hospital of Medical CollegeQingdao University Fujian Provincial Hospital Fujian Provincial Geriatric Hospital Fujian Medical University

AIM:To evaluate the correlation between nonalcoholic fatty liver disease(NAFLD) and microvascular complications in type 2 diabetes mellitus(T2DM).METHODS:Data were obtained from 1217 inpatients with T2DM(757 females,460 males;aged 63.39 ± 12.28 years).NAFLD was diagnosed by hepatic *** nephropathy(DN),diabetic peripheral neuropathy(DPN),and diabetic retinopathy(DR) were diagnosed according to their respective *** prevalence of NAFLD and the independent correlations of clinical characteristics with NAFLD were determined by cross-tabulation and logistic regression,***:Approximately 61% of inpatients with T2DM in Qingdao,China had NAFLD,which decreased significantly with increase in age and prolonged course of *** prevalence of NAFLD in patients presenting with DN,DPN and DR was 49.4%,57.2% and 54.9%,*** rates were significantly lower than those of patients without DN,DPN and DR(65.9%,65.6% and 66.1%,respectively,P pants with NAFLD had greater body weight,waist circumference(WC),body mass index(BMI),fasting blood glucose(FBG),hemoglobin A1c,alanine aminotransferase,aspartate aminotransferase,γ-glutamyltransferase,blood pressure,as well as triglyceride(TG) levels and lower high-density lipoprotein(HDL) concentration than those without NAFLD(P < 0.05).NAFLD was positively correlated with BMI,WC,TG,FBG,diastolic blood pressure,and systolic blood pressure but negatively correlated with the duration of diabetes,DR,DPN,DN,and ***:Despite the benign nature of NAFLD,efforts should be directed toward early diagnosis,intensive blood glucose and blood pressure control,and effective dyslipidemia correction.

关键词： Nonalcoholic fatty liver disease Type 2 diabetes mellitus Diabetic nephropathy Diabetic retinopathy Diabetic neuropathy

Competitive assembling strategy to construct carbon nitride homojunctions for boosting photocatalytic performance

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Journal of Materials Science & Technology 2024年第5期172卷 23-32页

作者： Hua-Wei Zhang Yuan-Yuan Li Bo Li Jing-Hui Shi Tao Huang Gui-fang Huang Anlian pan Wangyu Hu Wei-Qing Huang School of Physics&Electronic Engineering Zhengzhou University of Light IndustryZhengzhou 450002China Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education&Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices School of Physics and ElectronicsHunan UniversityChangsha 410082China College of Materials Science and Engineering Hunan UniversityChangsha 410082China

Both morphology and composition have a great influence on the properties and functions of materials,however,how to rational modulate both of them to achieve their synergistic effects has been a longstanding ***,we demonstrate a competitive assembling strategy for the construction of metal-free graphite carbon nitride(CN)homojunctions in which morphology and composition can be easily controlled simultaneously by only changing the ratio of assembly raw *** homojunctions are comprised of porous nanotubular S-doped CN(SCN)grafted with CN nanovesicles,which are derived from thermal polycondensation of melamine-thiocyanuric acid(M-T)/melamine-cyanuric acid(M-C)supramolecular hybrid *** unique architecture and component engineering endows the novel SCN-CN homojunction with abundant active sites,enhanced visible trapping ability,and intimate interface *** a result,the synthesized SCN-CN homojunctions demonstrate high photocatalytic activity for hydrogen evolution and pollutant *** developed strategy opens up intriguing opportu-nities for the rational construction of intricate metal-free heterostructures with controllable architecture and interfacial contact for applications in energy-related fields.

关键词： Competitive assembling strategy Supramolecular hybrid blocks Homojunctions Graphite carbon nitride Photocatalytic

青年群体对高校性骚扰的认知状况研究——基于实证调研成果的分析与考察

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中国青年社会科学 2020年第1期39卷 85-94页

作者：潘芳芳中国政法大学人权研究院

高校频发的性骚扰事件对青年群体的身心、学业和未来发展都造成难以修复的伤害。实践证明,单纯从师德规范和约束的层面出发,无法对性骚扰事件进行有效地预防和治理。应当通过明确界定高校性骚扰概念,并对青年群体进行相关宣传教育,明确... 详细信息

高校频发的性骚扰事件对青年群体的身心、学业和未来发展都造成难以修复的伤害。实践证明,单纯从师德规范和约束的层面出发,无法对性骚扰事件进行有效地预防和治理。应当通过明确界定高校性骚扰概念,并对青年群体进行相关宣传教育,明确高校责任主体地位,建立和实施监督机制,以期有效预防和减少高校性骚扰的发生。

关键词：青年群体高校性骚扰认知状况防治机制

Wake-promoting actions of bloodletting puncture at hand twelve Jing-Well points on acute stroke with conscious disturbance: a multicenter randomized controlled trial

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Wake-promoting actions of bloodletting puncture at hand twel...