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Surface free energy of copper-zinc alloy for energy-saving of boiler

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Rare Metals 2006年第z1期25卷 324-327页

作者： WANG Man LIANG Jinsheng TANG Qingguo MING Xing meng junping DING Yan Institute of Power Source&Ecomaterials Science Hebei University of TechnologyTianjin 300130China

Cu-Zn,Cu-Zn-Sn,Cu-Zn-Ni alloys were melted by vacuum *** effect factors to the surface free energy of the alloys such as chemical composition,crystal structure and surface crystal lattice distortion *** investigated by OCA30 automatic contact angle test instrument,metallography microscope and XRD instrument *** suggests:adding alloy element to Cu may increase its surface free energy,and the more kinds of alloy elements are added,the more surface free energy increases;the alloy element Sn an increase the surface free energy of Cu-Zn alloy;Cu-Zn alloy with fir-tree crystal structure,great phase discrepancy and obvious composition aliquation has greater surface free energy;Cu-Zn alloy with compounds and serious surface crystal lattice distortion has greater surface free energy.

关键词： boiler water treatment Cu-Zn alloy crystal structure contact angle surface free energy energy-saving

Effect of far infrared radiation ceramics containing rare earth additives on surface tension of water

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Journal of Rare Earths 2014年第9期32卷 890-894页

作者：刘洁孟军平梁金生霍晓丽 Institute of Power Source and Ecomaterials Science Hebei University of Technology Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology) Ministry of Education

A kind of far infrared radiation ceramics was prepared by using silicate minerals, calcium carbonate and silicon dioxide as main raw materials, and cerium nitrate as additive. The structure of the ceramics and far infrared radiation properties on the surface tension of water were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and a tensiometer, respectively. It was showed that, after being sintered at 1160 ℃, the solid solution was formed by CeO2 and Fe2O3, thus the crystal parameters （c/a axis ratio） and interplanar spacing of Fe2O3 increased. The addition of cerium was regarded to improve the far infrared radiation of ceramics, and the maximum emissivity value in the range of 5-20 μm was 0.94. The surface tension of water gradually decreased with increasing radiation time.

关键词： rare earths far infrared radiation ceramics activated water far infrared emissivity surface tension

Effect of tourmaline additive on the crystal growth and activity of LaCoO_3 for catalytic combustion of methane

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Journal of Rare Earths 2014年第9期32卷 855-859页

作者：王赛飞薛刚梁金生孟军平 Institute of Power Source and Ecomaterials Science Hebei University of Technology

LaCoO3/tourmaline was prepared as catalysts on the methane catalytic combustion. As additive tourmaline, its effect on crystal growth and catalytic activity of LaCoO3, were investigated via X-ray diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, H2-temperature programmed reduction （H2-TPR） and catalyst evaluation techniques. SEM and TEM indicated that the spontaneous polarizability of tourmaline made LaCoO3 particles grow dispersedly on tourmaline, allevi- ated the agglomeration and exposed more reactive sites. It was a main influence leading to the improvement of catalysts activity, exposed via catalyst evaluation device, Among the different additive proportion of compound samples, the 2% tourmaline added La- CoO3 showed an obvious enhancement activity compared to non-tourmaline sample--the light-off temperature was 454 ℃ and CH4 reached the full conversion at 563 ℃.

关键词： LaCoO3 tourmaline composite catalytic activity rare earths

Research progress on resource utilization of iron tailings and its development trend in China

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Research progress on resource utilization of iron tailings a...

Advances in genotypic antimicrobialresistance testing: a comprehensive review

2012 China Functional Materials Technology and Industry Forum

作者： Duan Xinhui Liang Jinsheng Tang Qingguo meng junping Ding Yan Institute of Power Source & Ecomaterials Science Hebei University of Technology

The treatment of iron tailings has been a global issue,which has bought serious impact on the environment,it was considered to be a potential threat to human *** the present paper,the development situation of iron tailings utilization in China is investigated,the problems existed is analyzed and suggestions are provided,which are hoped to be valuable in the future research and the development of functional materials and products.

关键词： Iron tailings resource utilization functional materials environment protection

来源： cnki会议评论

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Science China Life Sciences 2025年第01期 130-143页

作者： Boheng Duan Xianjun Zeng junping Peng Huan Kui College of Nanchang University Department of Imaging The Second Affiliated Hospital of Nanchang University NHC Key Laboratory of Systems Biology of Pathogens National Institute of Pathogen BiologyChinese Academy of Medical Sciences & Peking Union Medical College Key Laboratory of Respiratory Disease Pathogenomics Chinese Academy of Medical Sciences & Peking Union Medical College Key Laboratory of Pathogen Infection Prevention and Control (Ministry of Education) State Key Laboratory of Respiratory Health and MultimorbidityNational Institute of Pathogen BiologyChinese Academy of Medical Sciences & Peking Union Medical College

Antimicrobial resistance(AMR) represents a substantial threat to global public health, complicating the treatment of common infections and leading to prolonged illness and escalated healthcare expenses. To effectively combat AMR, timely and accurate detection is crucial for AMR surveillance and individual-based therapy. Phenotypic antibiotic resistance testing(AST) has long been considered the gold standard in clinical applications, serving as the foundation for clinical AMR diagnosis and optimized therapy. It has significantly contributed to ensuring patients′ health and the development of novel antimicrobials. Despite advancements in automated culture-based AST technologies,inherent limitations impede the widespread use of phenotypic AST in AMR surveillance. Genotypic AST technologies offer a promising alternative option, exhibiting advantages of rapidity, high sensitivity, and specificity. With the continuous advancement and expanding applications of genotypic AST technologies, such as microfluidics, mass spectrometry, and high-resolution melting curve analysis, new vigor has been injected into the development and clinical implementation of genotypic AST technologies. In this narrative review, we discuss the principles, applications, and advancements of emerging genotypic AST methods in clinical settings. The comprehensive review aims to highlight the significant scientific potential of emerging genotypic AST technologies in clinical AMR diagnosis, providing insights to enhance existing methods and explore novel approaches.

关键词：

同方期刊数据库

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浅析新时期市场监管所标准化建设

中国市场监管研究 2021年第1期 62-64页

作者：孟俊平重庆市荣昌区市场监管局

市场监管所是市场监管的前沿阵地,是履行市场监管职能的落脚点,是市场监管为人民服务的形象代表.市场监管所的规范化、标准化建设情况直接关系到市场监管部门是否创造一流的业绩、建设一流的队伍、塑造一流的形象、提供一流的服务.但就... 详细信息

市场监管所是市场监管的前沿阵地,是履行市场监管职能的落脚点,是市场监管为人民服务的形象代表.市场监管所的规范化、标准化建设情况直接关系到市场监管部门是否创造一流的业绩、建设一流的队伍、塑造一流的形象、提供一流的服务.但就目前情况来看,仍存在硬件设备落后、人员结构老化、业务技能不精、服务水平不高、监管执法不到位等问题.面对新问题、新形势、新任务,只有持续加强基层市场监管所标准化建设,才能筑牢市场监管执法的根基.

关键词：市场监管监管执法标准化建设前沿阵地规范化业务技能服务水平建设一流

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非金属矿物材料脱霉性能评价方法研究进展

材料导报 2020年第5期34卷 78-84页

作者：张娜韩筱玉梁金生李艳孟军平张红生态环境与信息特种功能材料教育部重点实验室(河北工业大学) 天津300130 河北工业大学能源与环保材料研究所天津300130

饲料极易霉变产生霉菌毒素,不但危害动物机体健康,还会引发食品安全问题。蒙脱石、凹凸棒石、海泡石及沸石等非金属矿物材料具有天然的层状、纤维状及孔状纳米结构,矿物表面含有丰富的羟基和悬挂键,晶体结构比较稳定,具有良好的吸附性... 详细信息

饲料极易霉变产生霉菌毒素,不但危害动物机体健康,还会引发食品安全问题。蒙脱石、凹凸棒石、海泡石及沸石等非金属矿物材料具有天然的层状、纤维状及孔状纳米结构,矿物表面含有丰富的羟基和悬挂键,晶体结构比较稳定,具有良好的吸附性能和离子交换能力,在饲料脱霉领域的应用前景十分广阔。添加到饲料中的脱霉材料可能会与动物体内的营养物质、抗生素、微量元素等相互作用;另外,饲料内会同时含有多种霉菌毒素,不同霉菌毒素间会产生协同作用。因此,脱霉材料对饲料内不同霉菌毒素的脱除效果有很大差异。目前国内外尚且没有统一的非金属矿物材料脱霉性能的检验方法和评价标准,主要原因在于标准溶液中霉菌毒素的浓度及脱霉材料的添加浓度有很大差异,不易统一。市场上脱霉产品良莠不齐,脱霉效果又不容易直观评价,不仅给用户的选择带来很大困扰,还给畜牧业的发展带来了极大影响,因此建立科学统一的非金属矿物材料脱霉性能检测实验方法和评价标准势在必行。脱霉材料性能检测实验方法主要分为体外实验法、体内实验法及体外模拟实验法。其中,体外实验方法简单、快捷,易于实现,应用广泛,但缺少动物消化吸收环境,不能准确评定脱霉材料对霉菌毒素的实际吸附效果,但可判断脱霉材料对霉菌毒素的吸附是否有效。体内实验虽然可以准确评价脱霉材料的有效性和安全性,但动物体内消化吸收过程复杂,实验过程所需周期较长,工作量大,样品的采集和制备比较困难。随着对动物消化吸收过程研究的深入,可建立体外模拟生物消化系统来对脱霉材料进行检测、评价,其结果更接近动物体内脱霉材料与霉菌毒素的结合,但建立体外模型复杂,难度较大,设备购买昂贵。因此,在体外模拟酶消化法和体外实验吸附-解吸法的基础上提出一种新的体外模拟实验法来对非金属矿物材料的脱霉性能进行测定。本文介绍了典型非金属矿物材料脱霉性能的主要检测实验方法、研究进展及发展方向,以期为非金属矿物材料脱霉性能检测及评价方法标准化奠定基础。

关键词：非金属矿物材料霉菌毒素脱霉性能效果评价检测方法

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热处理对电气石矿物粉体表面自由能的影响

硅酸盐学报 2008年第2期36卷 257-260页

作者：梁金生孟军平朱东彬丁燕刘志国河北工业大学能源与环保材料研究所天津300130

将电气石粉体在500～800℃焙烧处理,用表面张力仪测量热处理前后粉体对水、乙醇、30%乙二醇水溶液的接触角,并用Wu氏方程计算电气石粉体的表面自由能及组成。用X射线衍射仪、X光电子能谱仪等研究热处理影响电气石粉体表面自由能的机理... 详细信息

将电气石粉体在500～800℃焙烧处理,用表面张力仪测量热处理前后粉体对水、乙醇、30%乙二醇水溶液的接触角,并用Wu氏方程计算电气石粉体的表面自由能及组成。用X射线衍射仪、X光电子能谱仪等研究热处理影响电气石粉体表面自由能的机理。结果表明:随着热处理温度升高,电气石粉体的表面自由能及极性分量逐渐增加,且在800℃具有最大值;产生这种现象的原因在于随着热处理温度升高,电气石粉体表面铁元素逐渐从二价向三价转化,其晶胞体积逐渐缩小、电极性增加。

关键词：粉体电气石热处理 Wu氏方程表面自由能

Effect of Heat Treatment on Properties of Mineral Attapulgite

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Effect of Heat Treatment on Properties of Mineral Attapulgit...