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电感耦合等离子体发射光谱法测定铅阳极泥中的碲

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湖南有色金属 2023年第4期39卷 96-98页

作者：陈玉婷谢明月段雄伟彭靖宜刘玮晴蒋亚玲郴州市金贵银业股份有限公司湖南郴州423038

为了准确测定铅阳极泥中的碲,试验采用王水溶样,在碲214.281 nm处,用电感耦合等离子体发射光谱法(ICP-OES)进行测定。试验讨论了酸度的选择,共存元素铅、铋、锑等对碲测定的影响。结果表明,稀释时加入8 mL的王水能防止铋和锑的水解且测... 详细信息

为了准确测定铅阳极泥中的碲,试验采用王水溶样,在碲214.281 nm处,用电感耦合等离子体发射光谱法(ICP-OES)进行测定。试验讨论了酸度的选择,共存元素铅、铋、锑等对碲测定的影响。结果表明,稀释时加入8 mL的王水能防止铋和锑的水解且测定结果稳定,一定含量的铅、铋、锑、铜、砷的存在对碲的测定无影响,碲在0~12μg/mL的校正曲线关系良好,相关系数为0.9999,本试验方法的检出限为0.015μg/mL。取不同含量的铅阳极泥样品进行精密度试验,所得的相对标准偏差(RSD,n=12)在0.56%~0.95%之间,加标回收率在99.31%~101.43%之间。

关键词：铅阳极泥电感耦合等离子体发射光谱法碲

Effects of surface roughness on interfacial dynamic recrystallization and mechanical properties of Ti-6Al-3Nb-2Zr-1Mo alloy joints produced by hot-compression bonding

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Journal of Materials Science & Technology 2022年第1期96卷 199-211页

作者： Bijun xie Zhenxiang Yu Haiyang Jiang Bin Xu Chunyang Wang Jianyang Zhang mingyue Sun Dianzhong Li Yiyi Li Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China College of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China

The influence of surface roughness on the interfacial dynamic recrystallization kinetics and mechanical properties of Ti-6 Al-3 Nb-2 Zr-1 Mo hot-compression bonding joints was systematically *** is found that for the bonding interface of rough surfaces,elongated fine grains are formed at the bonding interface due to shear deformation of the interfacial *** the surface roughness increases,the proportion of elongated grains drastically decreases as they further reorient to form equiaxed grains along the bonding interface of rougher surfaces resulting from severe incompatible deformation of the interface ***,high-density geometrically necessary dislocations accumulate around the interfacial recrystallization area to accommodate the incompatible strain and lattice rotation.A rotational dynamic recrystallization mechanism is thereby proposed to rationalize the formation of fine interfacial recrystallization grains during bonding of rough *** contrast to that of rough surfaces,bonding interface of polished surfaces exists in the form of straight interface grain boundaries without fine grains under the same deformation *** with the increase of deformation strain,small grain nuclei form along the bonding interface,which is associated with discontinuous dynamic recrystallization assisted by strain-induced boundary migration of interface grain ***,the bonding joints of rough surfaces show lower elongation compared with that of polished *** is because the formation of heterogeneous fine grains with low Schmid factor along the bonding interface of rough surfaces,leading to worse compatible deformation capability and thereby poor ductility of bonding joints.

关键词： Surface roughness Rotational dynamic recrystallization EBSD Geometrically necessary dislocations Mechanical properties

Modulation of starch digestibility using non-thermal processing techniques:A review

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Grain & Oil Science and Technology 2024年第3期7卷 209-218页

作者： Liyuan Rong Weiqi Fei Zhijun Wang Xianxiang Chen Huiliang Wen Jianhua xie mingyue Shen State Key Laboratory of Food Science and Resources Nanchang UniversityNanchang 330047China School of Biosystems and Food Engineering University College DublinDublinIreland

Obesity and type 2 diabetes are widespread throughout the world, especially in developed countries. Starch is an important part of human staple food, the modulating of starch digestibility is conducive to reducing postprandial blood glucose levels and alleviating the chronic disease caused by high caloric intake. The digestion properties of starch are correlated with its structural features, including crystallization, amylose/amylopectin ratio, non-starch components, etc. Among the modified methods applied to regulate starch digestibility, non-thermal processing techniques(NTPT) receive extensive attention due to the characteristics of safety, environmental friendliness and high efficiency. The influence and mechanism of NTPT on the digestion properties of starch are discussed in this review, including ultrasounds, high pressure, γ-irradiation, etc. NTPT induces the alternation of morphological and structural characteristics of native starch, changing their sensitivity to enzymes. The effects of NTPT on the digestibility of starch are highly related to the processing parameters and structure characteristics of native starch. The review shows that NTPT is an effective way to modulate the digestion properties of starch and prevent people from suffering from chronic diseases such as obesity and type 2 diabetes.

关键词： Digestibility Non-thermal processing Chronic disease Starch

Evaluating Soil Dissolved Organic Matter Extraction Using Three-Dimensional Excitation-Emission Matrix Fluorescence Spectroscopy

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Pedosphere 2017年第5期27卷 968-973页

作者： xie Wenming ZHANG Shanshan RUAN Lin YANG mingyue SHI Weiming ZHANG Hailin LI Weihua State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences College of Environment Hohai University Department of Plant and Soil Sciences Oklahoma State University School of Environment and Energy Engineering Anhui Jianzhu University

Soil dissolved organic matter （DOM） consists of many organic compounds and plays an important role in contaminant transport in the ecosystem. However, the effects of different extraction conditions on contents of different DOM components are poorly understood. We extracted DOM from three soils using different extraction times, solid to liquid ratios （SLR）, and extraction solution （KC1） concentrations, and evaluated the extractions using three-dimensional excitation-emission matrix （EEM） fluorescence spectroscopy. The sum of the contents of the main DOM components （protein-, fulvic-, and humic-like compounds） increased by 0.6-3.5, 2.5-3.9, and 0.11 0.37 times （P 〈 0.05） when SLR decreased from 1：2 to 1：10, the extraction solution concentration increased from 0.01 to 1.5 mol L-1, and extraction time increased from 10 to 300 rain, respectively. The three-dimensional EEM fluorescence spectroscopy is a useful tool to characterize the components of DOM and evaluate DOM extraction in soils.

关键词： dissolved organic matter components extraction conditions extraction time KC1 concentration solid to liquid ratio

Several whitefly genome assemblies and an integrated whitefly gene search platform

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Insect Science 2024年第1期31卷 299-306页

作者： Xingnuo Li Peng Liang mingyue Wu Shaoli Wang Qingjun Wu Wen xie Youjun Zhang State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijingChina Sanya Academy of Troprical Agricultural Sciense SanyaHainanChina National Research Institute of Breeding in Hainan Chinese Academy of Agricultural SciencesSanyaHainanChina

Dear Editor,The characteristics and importance of the whitefly Bemisia tabaci as an economic pest seem to continually get more and more *** the whiteflies *** including,at least 11 genetic groups and 36 morphologically indistinguishable cryptic species,invasive MEAMl(Middle East-Asia Minor 1,"B"type)and MED(the Mediterranean,"Q"type)are the 2 most destructive cryptic species of the B.

关键词： Middle white East

Superior triethylamine-sensing properties based on SnO2 hollow nanospheres synthesized via one-step process

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Progress in Natural Science:Materials International 2024年第4期34卷 682-689页

作者： mingyue Xu Shu Yan Zia Ur Rehman Jianhua Hou Liangyun Zhai Shengjie Zhu Chuanbao Cao Wanfeng xie Junyu Zhong Jun Yang State Key Laboratory of Bio-fibers and Eco-textiles School of Electronics and Information College of Materials Science and Engineering College of Chemistry and Chemical Engineering Qingdao University College of Environmental Science and Engineering Yangzhou University State Key Laboratory of Chemical Safety SINOPEC Research Institute of Safety Engineering Co. Ltd. National Registration Center for Chemicals Ministry of Emergency Management Research Center of Materials Science Beijing Institute of Technology State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences

Due to serious harm of triethylamine（TEA） to environmental safety and human health, it is significant to synthesize gas-sensitive materials with high performance for TEA detection. However, it is still a challenge to achieve high-sensitivity detection of TEA at low temperature for a sensor synthesized through an economical and efficient method. In this work, hollow-structured SnO2（HS-SnO2） nanospheres have been fabricated by a facile, low-cost hydrothermal method in one step, which exhibit superior TEA-sensing properties, including not only ultrahigh response（127.75） for 100 ppm TEA, good selectivity, but also fast response and recovery time（17/28 s）, low detection threshold（1 ppm） and robust stability at a relatively low optimum operational temperature of 225°*** excellent gas-sensitizing performances are ascribed to porous hollow structures with rich oxygen vacancies that provide abundant active sites for raising O2adsorption and reaction of TEA and oxygen species. This work offers an effective and economical strategy for fabricating high-performance TEA sensors for industrial applications.

关键词： Hollow-structured SnO2 nanospheres TEA High response Gas sensors

Optimizing soil dissolved organic matter extraction by grey relational analysis

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Pedosphere 2020年第5期30卷 589-596页

作者： Wenming xie You MA Shijun LI Shanshan ZHANG Lin RUAN mingyue YANG Weiming SHI Hailin ZHANG Limin ZHANG School of Environment Nanjing Normal UniversityNanjing 210046(China) State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) College o f Environment Hohai UniversityNanjing 210098(China) A Department of Plant and Soil Sciences Oklahoma State UniversityStillwater 74078-6028(USA)

Dissolved organic matter(DOM)in soil plays an important role in the fate and transport o f *** is typically composed of many compounds,but the effect of different extraction factors on the abundance of different DOM components is *** this study,DOM was extracted from three soils(paddy field,vegetable field and forest soils)with various extraction time,liquid to solid ratios(LSRs).extractant types,and extractant *** LSR had a significant effect on DOM content,which increased by 0.5-4.0 times among the three soils when LSR increased from 2:1 to 10:1(PLSR>extraction ***,the effect was different for the vegetable field soil:LSR>extraction time>KCI *** all these factors into account,1.50 mol L^-1 KC1 and an LSR of 10:1 with a shaking time of 300 min was recommended as the most appropriate method for soil DOM extraction.

关键词： extractant concentration extractant type extraction time grey relational coefficient grey relational entropy liquid to solid ratio

Engineering SIRPα cellular membrane-based nanovesicles for combination immunotherapy

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Nano Research 2023年第5期16卷 7355-7363页

作者： mingyue Wang Yanfang Wang Yeteng Mu Fuxu Yang Zebin Yang Yuxuan Liu Lili Huang Shi Liu Xingang Guan Zhigang xie Zhen Gu School of Medicine Taizhou UniversityTaizhou 318000China College of Medical Technology Beihua UniversityJilin 132013China Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China Jinhua Institute of Zhejiang University Jinhua 321299China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Department of General Surgery Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310016China Zhejiang Laboratory of Systems&Precision Medicine Zhejiang University Medical CenterHangzhou 311121China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China

Immune checkpoint inhibitors(ICIs)have revolutionized cancer treatment for their unprecedented clinical *** regulatory proteinα(SIRPα)is a phagocytic checkpoint expressed on macrophages,dendritic cells,other myeloid *** cells inhibit macrophage phagocytosis through the interaction of the CD47-SIRPα*** the CD47-SIRPαaxis has therefore been a promising strategy in restoring the immune attack against ***,we engineered cellular membrane nanovesicles(NVs)presenting SIRPαreceptors for phagocytosis checkpoint blockade to augment the antitumor immune ***,zebularine(Zeb),an inhibitor of DNA methyltransferase,was encapsulated into SIRPαNVs to reprogram the immunosuppressive tumor microenvironment together with blockade of phagocytosis *** is demonstrated that SIRPα@Zeb can improve tumor immunogenicity,the polarization of tumor-associated macrophages to the M1 phenotype,increase the infiltration of CD8^(+)T lymphocytes in *** robust antitumor immune response induced by SIRPα@Zeb significantly suppressed tumor growth and extended mice-bearing melanoma xenograft survival.

关键词： drug delivery signal regulatory proteinα nanovesicle tumor-associated macrophages cancer immunotherapy

Parameter Optimization on Experimental Study to Reduce Ammonia Escape in CO_2 Absorption by Ammonia Scrubbing

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Journal of Harbin Institute of Technology(New Series) 2016年第1期23卷 75-81页

作者： Hao Leng Jianmin Gao mingyue He Min xie Qian Du Rui Sun Shaohua Wu Institute of Combustion Engineering Harbin Institute of Technology

In order to research ammonia escape in CO2 absorption by ammonia scrubbing,ammonia escape was studied in CO2 absorption process using the bubbling reactor in different conditions as gas flow rate,CO2 ratio,absorbent temperature and ammonia concentration and quantity of escaped ammonia was measured by chemical titration. The results indicated that,the amount of ammonia escape can be around 20% of original amount in90 min and the escaped amount will increase with the rise of gas flow rate, absorbent temperature,concentration of ammonia while decrease as CO2 ratio goes up. Through the analysis of the law of ammonia escape,at the same time,combined with ammonia escape and the influence of the relationship between the CO2 absorption efficiency,reducing ammonia escape working condition parameter optimization is given.

关键词： CO2 capture ammonia escape bubbling reactor chemical titration