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Role of cetyltrimethyl ammonium bromide,crystal violet and humic acid in the degradation of diclofenac under simulated sunlight irradiation

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Science China Chemistry 2012年第12期55卷 2610-2616页

作者： ZHANG Nan LIU HaiJin LIU GuoGuang wang yingling LI Tong wang Gang School of Chemistry and Environmental Science Henan Normal University Henan Key Laboratory for Environmental Pollution ControlKey Laboratofy for Yellow River and Huaihe River Water Environment and Pollution ControlMinistry of EducationXinxiang 453007China Faculty of Environmental Science and Engineering Guangdong University of TechnologyGuangzhou 510006China

The photodegradation of diclofenac in the absence/presence of cetyltrimethyl ammonium bromide,crystal violet and humic acid under simulated sunlight has been *** the study conditions,it is apparent that cetyltrimethyl ammonium bromide and crystal violet concentrations inhibit effects on the photodegradation of *** acid has no distinct effect on the photodegradation of *** violet has an obvious antagonistic action for humic acid and a similar antagonistic action between cetyltrimethyl ammonium bromide and crystal *** ammonium bromide and humic acid have synergistic *** antagonistic action is present between cetyltrimethyl ammonium bromide,crystal violet and humic ***,a simple linear model which describes the obtained results is shown.

关键词： diclofenac Box-Behnken design photodegradation simulated sunlight

Physicochemical properties and antioxidant activities of polysaccharides extracted from Panax ginseng *** with graded percipitation method

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Asian Journal of Traditional Medicines 2020年第6期15卷 309-319页

作者： Xinying wang Yue Lin Jia Liu Zhaojun wang Linlin Liu yingling wang Jincai Lu School of Traditional Chinese Materia Medica Shenyang Pharmaceutical UniversityShenyang 110016PR China Liaoning Provincial Key Laboratory of TCM Resources Conservation and Development Shenyang Pharmaceutical UniversityShenyang 110006PR China

Ginseng polysaccharides were extracted by water decoction from Panax ginseng ***(Cultivated Ginseng),named *** polysaccharide fractions,CGPS-20,CGPS-40,CGPS-60 and CGPS-80,were precipitated at final ethanol concentrations of 20%,40%,60%and 80%,*** properties,molecular weight,monosaccharide composition and antioxidant capacity of polysaccharide fractions were all *** results indicated that changing the concentration of ethanol could precipitate polysaccharides into fractions with different molecular weights,functional group composition and physicochemical properties,eventually leading to differences in antioxidant activity,which would help to find a simple,efficient,and reliable method for rapid extraction and purification of antioxidant polysaccharides from Panax ginseng *** the four polysaccharide fractions,CGPS-80 had lower molecular weight,higher contents of uronic acid and total phenolic,and stronger scavenging ability on DPPH∙and ABTS∙+radicals.

关键词： Ginseng polysaccharides graded ethanol precipitation physicochemical property antioxidant activity

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空基测控中继设备的相控阵天线设计

电讯技术 2018年第6期58卷 638-643页

作者：王英玲解放军91851部队辽宁葫芦岛125000

空基测控中继是为解决地面测控设备作用距离受视距限制的问题而提出的,而相控阵天线是空基测控中继设备的技术难点。根据实际需求,提出了相控阵天线的设计方案,对阵列形式、天线的流形、阵元间距、阵列规模以及阵元形式等进行了详细设计... 详细信息

空基测控中继是为解决地面测控设备作用距离受视距限制的问题而提出的,而相控阵天线是空基测控中继设备的技术难点。根据实际需求,提出了相控阵天线的设计方案,对阵列形式、天线的流形、阵元间距、阵列规模以及阵元形式等进行了详细设计,并对天线的接收发射性能进行了仿真,对跟踪控制技术途径进行了阐述。所设计的相控阵天线增益可以满足约130 km、2 Mbit/s遥测数据中继,解决远距离低空飞行目标的靶场测控问题。

关键词：靶场测控低空飞行目标空基测控中继相控阵天线跟踪控制

Role of surfactant additives in the ferrate(Ⅵ) oxidation of anti-inflammatory drug diclofenac in aqueous solution

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Role of surfactant additives in the ferrate(Ⅵ) oxidation of...

Oxidation of diclofenac by potassium ferrate(Ⅵ): Reaction kinetics and toxicity evaluation

河南省化学会2016年学术年会

作者： Youhai Xie yingling wang Haijin Liu Guoguang Liu School of Environment Henan Normal University Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control Key Laboratory of Medical Molecular Probes School of Basic Medical Sciences Xinxiang Medical University

Ferrate(Ⅵ) has been widely used in water purification process due to its triple functions as an oxidant,coagulant and disinfectant. Diclofenac(DCF) is widely detected in surface waters and sewage treatment effluent. It is considered to be one of the most relevant compounds in terms of toxicity and persistence in the ambient environment. However, the potential reaction of DCF with ferrate(Ⅵ) and influences of coexisting surfactants have not investigated in depth and are the focus of this *** results demonstrated that DCF reacted effectively and rapidly with Fe(Ⅵ) and approximately 75% of DCF(0.03 mM) was removed by excess Fe(Ⅵ)(0.45 mM) within 10 min. All of reactions followed pseudo first-order kinetics with respect to DCF and Fe(Ⅵ), and the apparent second-order rate constant, kapp, was 5.07M s at pH 9.0. Furthermore, the degradation kinetics of DCF was clearly dependent on the concentrations of dissolved organic matter additives in the substrate solution. Primarily, inhibitory effects were observed on the samples that had been added anionic(SDBS) or non-ionic(Tween-80) surfactants, which may be attributable to the side reactions between Fe(Ⅵ) and surfactants, leading to available oxidant reduction for DCF destruction. Instead, addition of cationic surfactant(CTAB) and humic acid(HA) conveyed significant promotion effects on the DCF-Fe(Ⅵ) reaction. The rate enhancement effect for CTAB might be due to micellar surface catalysis through the coulomb attraction between the reactants and positively charged surfactants, while the catalytic action of additional HA resulted from the generation of more oxidizing of Fe(Ⅴ)/Fe(Ⅳ) in the presence of HA.

关键词： Diclofenac Ferrate(Ⅵ) Kinetics Surfactants Humic acid

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Oxidation of diclofenac by potassium ferrate(Ⅵ): Reaction k...

TiNi形状记忆合金与不锈钢的瞬时液相扩散焊

河南省化学会2016年学术年会

作者： yingling wang Youhai Xie Haijin Liu Guoguang Liu Key Laboratory of Medical Molecular Probes School of Basic Medical Sciences Xinxiang Medical University School of Environment Henan Normal University Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control

Diclofenac(DCF), a synthetic non-steroidal anti-inflammatory drug, is widely detected in ambient surface water and sewage treatment effluent. There is a growing concern regarding the persistence of DCF in the environment and its potential adverse impacts. Thus, it will be a serious threat to public health and ecosystems if drinking water sources are contaminated with ***(Ⅵ) has been widely used in potable water treatment due to its triple functions as an oxidant,coagulant and disinfectant. Although ferrate is a currently utilized as an oxidant for the removal of micropollutants from aqueous media, the degradation of DCF by Fe(Ⅵ) has rarely been ***, further studies are required to assess the changes in toxicity of the reaction *** this work, the reaction kinetics and toxicity of diclofenac(DCF) oxidation by ferrate(Ⅵ) under simulated water disinfection conditions were investigated. Experimental results indicated that the reaction between DCF and Fe(Ⅵ) followed first-order kinetics with respect to each ***, the effects of p H and temperature on DCF oxidation by Fe(Ⅵ) were elucidated via a systematic examination. The apparent second-order rate constants(kapp) increased significantly from2.54 to 11.6 M s, as the p H of the solution decreased from 11.0 to 7.0, and the acid-base equilibriums of Fe(Ⅵ) and DCF were proposed to explain the p H dependence of kapp. The acute toxicity of DCF solution during Fe(Ⅵ) oxidation was evaluated using a Microtox bioassay. Overall, the DCF degradation process resulted in a rapid increase of the inhibition rate of luminescent bacteria. These toxicity tests suggest that the formation of enhanced toxic intermediates during the Fe(Ⅵ) disinfection process may pose potential health risk to consumers.

关键词： Diclofenac Ferrate(Ⅵ) Reaction kinetics Toxicity

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稀有金属材料与工程 2011年第8期40卷 1382-1386页

作者：李红栗卓新汪应玲冯吉才北京工业大学北京100124 哈尔滨工业大学现代焊接生产技术国家重点实验室黑龙江哈尔滨150001

采用AgCu金属箔作中间过渡层,对TiNi形状记忆合金与不锈钢进行了瞬时液相扩散焊,分析了接头的显微组织、元素分布和物相组成等,研究了接头的抗剪强度和断裂方式。结果表明:接头界面区由TiNi侧过渡区,中间区,不锈钢侧过渡区组成,主要相... 详细信息

采用AgCu金属箔作中间过渡层,对TiNi形状记忆合金与不锈钢进行了瞬时液相扩散焊,分析了接头的显微组织、元素分布和物相组成等,研究了接头的抗剪强度和断裂方式。结果表明:接头界面区由TiNi侧过渡区,中间区,不锈钢侧过渡区组成,主要相分别为Ti(Cu,Ni,Fe),AgCu,TiFe等。连接温度为860℃,保温时间为60min,连接压力为0.05MPa时,接头最大抗剪强度为239MPa。断裂发生在TiNi母材和AgCu中间层扩散界面上,断口为混合断裂形貌。通过中间层等温凝固过程动力学模型,结合界面形貌和元素扩散分析,认为TiNiSMA与不锈钢异种材料瞬时液相扩散焊过程存在明显的非对称性。

关键词： TiNi形状记忆合金不锈钢瞬时液相扩散焊界面组织等温凝固非对称性

TiNi形状记忆合金与不锈钢TLP-DB接头界面组织及力学性能

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焊接学报 2009年第5期30卷 77-80页

作者：汪应玲李红栗桌新冯吉才北京工业大学材料学院北京100124 哈尔滨工业大学现代焊接生产技术国家重点实验室哈尔滨150001

采用AgCu金属箔作中间层,对TiNi形状记忆合金与不锈钢进行了瞬间液相扩散焊.分析了接头的显微组织、元素分布、物相组成等,研究了接头的显微硬度和不同工艺参数下的抗剪强度.结果表明,接头界面区由TiNi侧过渡区、中间区和不锈钢侧过渡... 详细信息

采用AgCu金属箔作中间层,对TiNi形状记忆合金与不锈钢进行了瞬间液相扩散焊.分析了接头的显微组织、元素分布、物相组成等,研究了接头的显微硬度和不同工艺参数下的抗剪强度.结果表明,接头界面区由TiNi侧过渡区、中间区和不锈钢侧过渡区组成,主要相分别为Ti（Cu,Ni,Fe）,AgCu,TiFe等.过渡区的显微硬度值高达500-650 HV,但中间区的硬度值只有大约120 HV.随加热温度的升高和保温时间的延长,接头抗剪强度均呈先增大后减小的趋势,最大抗剪强度为239.4 MPa.断裂发生在TiNi母材和AgCu中间层扩散界面上,断口为混合断裂形貌.

关键词： TiNi形状记忆合金不锈钢瞬间液相扩散焊显微组织抗剪强度

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基于Pro/E的四冲程曲柄连杆机构装置虚拟装配及运动仿真动画的实现

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机械管理开发 2018年第4期33卷 14-15页

作者：王英玲苏州技师学院江苏苏州215009

分析了四冲程曲柄连杆机构装置和三维实体建模与虚拟装配,并详细介绍了运动仿真与动画制作过程,以期对其他用Pro/E设计总成的运动仿真动画制作具有一定借鉴意义,在Pro/E环境下完成四冲程曲柄连杆机构装置的零部件三维实体建模、虚拟装... 详细信息

分析了四冲程曲柄连杆机构装置和三维实体建模与虚拟装配,并详细介绍了运动仿真与动画制作过程,以期对其他用Pro/E设计总成的运动仿真动画制作具有一定借鉴意义,在Pro/E环境下完成四冲程曲柄连杆机构装置的零部件三维实体建模、虚拟装配与运动仿真,可为产品开发提供可靠的前提条件。

关键词：四冲程曲柄连杆机构 Pro/E 虚拟装配运动仿真动画

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低年级作文起步教学方法浅析

科教文汇 2013年第14期 179-179,181页

作者：王英灵湖北省荆州市江陵县江北小学湖北荆州434110

小学低年级学生认知水平低、知识积累少,写作文的过程中难以下笔,不能在作文中很好地表达自己的情感。如何使低年级学生作文早起步,起好步,让学生在作文中尽情发挥自己的本能,充分地表达自己的思想,勇敢地阐述自己的观点,真诚地表露自... 详细信息

小学低年级学生认知水平低、知识积累少,写作文的过程中难以下笔,不能在作文中很好地表达自己的情感。如何使低年级学生作文早起步,起好步,让学生在作文中尽情发挥自己的本能,充分地表达自己的思想,勇敢地阐述自己的观点,真诚地表露自己的感情,需要我们广大教育工作者们去积极地探索。笔者本着多年的一线教学实践提出了几点有关低年级作文起步教育的领悟。

关键词：作文起步树立信心奠定基础寻找源泉