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Synthesis of granulated Li_(1.33)Mn_(1.67)O_(4) via two antisolvent methods for lithium adsorption from gas-produced water

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Chinese Journal of Chemical Engineering 2024年第5期69卷 34-46页

作者： Jun Qiu Lu-Ri Bao Wei Guo ying Yang {1.-ying Sun National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China

Gas-produced water is an accompanying wastewater in the natural gas extraction process,and it is a potential liquid lithium resource that contains a considerable amount of *** study investigated the feasibility of using manganese-based ion sieves to adsorb and extract lithium from gas-produced *** we focused on the applicability of two different granulation methods,extrusion and droplet,in gas-produced water *** types of H_(1.33)Mn_(1.67)O_(4) particles were prepared by the extrusion method(EHMO)and the droplet method(DHMO).The porosity of DHMO was much higher than that of EHMO,and the adsorption performance of DHMO increased with the decrease of binder *** prepared with a binder concentration of 0.1. g·ml^(-1.exhibited the best adsorption performance in gas-produced water,and the Li^(+)adsorption capacity could reach 25.1. mg·g^(-1..In gas-produced water,the adsorption equilibrium of DHMO only took 9 h,and the adsorption process conformed to the Langmuir model and pseudo-second-order kinetic *** pore diffusion model(PDM)could well describe its adsorption ***,DHMO showed a great selectivity to Li^(+),and the selectivity order of DHMO in gas-produced water was Li^(+)>Ba^(2+)>>Mg^(2+),Ca^(2+),Sr^(2+)>>Na^(+)>>K^(+).After 20 cycles,the Li^(+)adsorption capacity was still higher than 1..30 mg·g^(-1.,and the rate of manganese dissolution was less than 1..

关键词： Gas-produced water Granulation Li_(1.33)Mn_(1.67)O_(4)

Formation and properties of a Zr-based amorphous coating by laser cladding

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Rare Metals 2024年第4期43卷 1809-1814页

作者： Ning Zhang ying Liu Wei Yang {1.-Jie Pang Key Laboratory of Aerospace Materials and Performance(Ministry of Education) School of Materials Science and EngineeringBeihang UniversityBeijing100191China

(Zr_(0.53)Al_(0.1.Ni_(0.05)Cu_(0.3)Ti_(0.02))_(99)Y_1.at%)coating with amorphous layer of about 1.0μm thick was prepared on a steel substrate by using laser cladding *** coating is compact and shows good metallurgical bonding with *** microstructure,microhardness and corrosion behavior along the depth from the coating surface to the substrate were *** is found that a gradient structure consisted of amorphous surface layer,amorphous-crystalline transitional layer and substrate is formed after the laser *** microhardness and corrosion behavior exhibit variation with the microstructural evolution at different depths from the coating *** microhardness and corrosion resistance in 3.5 wt%NaCl solution of the amorphous surface layer are comparable to those of the as-cast Zr-based BMG with the same composition,and higher than those of the steel substrate.

关键词： Laser cladding Amorphous coating Microstructure Hardness Corrosion resistance

集成“3S”技术的森林防火决策支持系统研究

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系统工程理论与实践 2004年第7期24卷 88-93页

作者：万鲁河李一军臧淑英哈尔滨工业大学管理学院黑龙江哈尔滨150006 哈尔滨师范大学地理系黑龙江哈尔滨150080

　从数据库设计、火险等级预测、火灾损失评估、空间分析、信息提取等功能模块方面,分析了基于地理信息系统(GIS)、全球定位系统(GPS)和遥感(RS)技术的森林防火决策支持系统的结构和开发环境,系统采用组件式GIS技术,成功地实现了3S与林... 详细信息

　从数据库设计、火险等级预测、火灾损失评估、空间分析、信息提取等功能模块方面,分析了基于地理信息系统(GIS)、全球定位系统(GPS)和遥感(RS)技术的森林防火决策支持系统的结构和开发环境,系统采用组件式GIS技术,成功地实现了3S与林火损失评估模型、林火预测模型的无缝集成.文章还探索地把粗集理论应用在林火等级预测中.该系统具有数据管理、更新、互查询、显示、输出和模型分析等功能,为森林防火管理提供及时的、可靠的信息支持.

关键词：地理信息系统全球定位系统粗集组件式GIS 森林防火

Reconceptualization of immune checkpoint inhibitor-associated gastritis

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World Journal of Gastroenterology 2024年第36期30卷 4031-4035页

作者： ying-Fang Deng Xian-{1. Cui Liang Wang Department of Oncology Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina Department of Gastrointestinal Oncology Surgery Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina

In recent years,with the extensive application of immunotherapy in clinical practice,it has achieved encouraging therapeutic *** enhancing clinical efficacy,however,it can also cause autoimmune damage,triggering immunerelated adverse events(irAEs).Reports of immunotherapy-induced gastritis have been increasing annually,but due to its atypical clinical symptoms,early diagnosis poses a certain ***,it can lead to severe complications such as gastric bleeding,elevating the risk of adverse outcomes for solid tumor patients if immunotherapy is ***,gaining a thorough understanding of the pathogenesis,clinical manifestations,diagnostic criteria,and treatment of immune-related gastritis is of utmost importance for early identification,diagnosis,and ***,the treatment of immune-related gastritis should be personalized according to the specific condition of each *** patients with grade 2-3 irAEs,restarting immune checkpoint inhibitors(ICIs)therapy may be considered when symptoms subside to grade *** restarting ICIs therapy,it is often recommended to use different types of *** grade 4 irAEs,permanent discontinuation of the medication is necessary.

关键词： Programmed cell death receptor-1 Programmed cell death-ligand 1 Cytotoxic T lymphocyte-associated antigen 4 Immune-related adverse events Immune-related gastritis

Kinetic study and DFT calculation on the tetracycline abatement by peracetic acid

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Chinese Chemical Letters 2024年第9期35卷 346-350页

作者： Dan-ying Xing Xiao-Dan Zhao Chuan-{1. He Bo Lai College of Chemical Engineering Huaqiao UniversityXiamen 361021China State Key Laboratory of Hydraulics and Mountain River Engineering College of Architecture and EnvironmentSichuan UniversityChengdu 610065China

Water contamination by tetracycline(TC)has emerged as an environmental concern owing to its widespread use and antibiotic *** of peracetic acid(PAA)in the water and wastewater treatment has recently been proposed and demonstrated to be effective for TC abatement,yet the underlying reaction kinetics between the PAA and TC are not yet *** explore the reaction kinetics,the effect of solution pH on TC abatement by PAA is studied and the species-specific rate constants are *** ability to donate and accept electrons for different species of TC and PAA is evaluated via density functional theory(DFT)*** pH-dependent apparent second-order rate constants of TC abatement by PAA exhibits the parabolic shape with the maximum at p H 8.5(9.75 L mol^(-1.s^(-1.).This phenomenon is closely related to the speciation of TC and PAA,in which the reaction between PAAH and TTC^(2-)possesses the highest species-specific rate constants according to the kinetic *** DFT calculations suggest that the HOMO of TTCH^(+),TTC,TTC^(-),TTC^(2-)and the LUMO of PAAH and PAA-are–6.40,–6.26,–5.1.,–4.94 e V and–0.24,0.60 e V,*** to the DFT calculations,deprotonation of TC and PAA leads to an increase of the HOMO value of TC and the LUMO value of ***,the HOMOTC–LUMOPAAvalues is in good agreement with the trend of species-specific rate constants,which can be used to evaluate the reactivity between PAA and TC with different *** study provides the kinetic data and theoretical basis for the reaction of PAA and TC,which is critical for the application of PAA in the treatment of water and wastewater.

关键词： Peracetic acid Tetracycline Kinetics Rate constants DFT calculation

Coupled interactive effects of ammonia and hydrogen additions on ethylene diffusion flames: A detailed kinetic study

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Science China(Technological Sciences) 2024年第3期67卷 930-948页

作者： XIAO JiaYi XU TingTing shu ZhiMei DENG QiGe ZHAO Xuan {1. YaoYao LI TianJiao LIU Dong MIIT Key Laboratory of Thermal Control of Electronic Equipment School of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing 210094China Advanced Combustion Laboratory School of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing210094China

In order to create effective combustion technologies and fuels with low or no carbon emissions,the research was conducted to assess the coupled interactive effects of NH_(3) and H_(2) additions on ethylene counterflow diffusion flames from a kinetic *** effects of the NH_(3)/H_(2) combination on flame temperatures,major species,key radicals,important intermediate species,representative oxygenated species and NO_xwere *** results of the study utilizing fictitious inert NH_(3) and/or H_(2) revealed the chemical effects of the two *** was found that the NH_(3)/H_(2) coupled effects had a more effective inhibitory effect on soot precursors than the effects of corresponding sum of single NH_(3) or H_(2) *** production of soot precursors was promoted by the coupled chemical effects of NH_(3) and H_(2),but the coupled dilution and thermal effects were observed to have a greater impact,resulting in a decrease of the mole fractions of soot *** for the interaction of NH_(3) and H_(2) effects,the presence of H_(2) decreased the chemical effects of NH_(3) on the augmentation of C_(2)H_(2),A1.A2,and CH_(3)CHO mole *** NH_(3) addition alleviated the H_(2) chemical effects on increasing C_(2)H_(2),C_(3)H_(3),A1.and A2 ***,the NH_(3)chemical effects on C_(3)H_(3),OH and CH_(3)CHO were enhanced when H_(2) was *** presence of NH_(3) augmented the chemical effects of H_(2) on the growth of OH mole ***,the H_(2) chemical effects hindered the production of NO and NO_(2) in the presence of NH_(3).

关键词： NH_(3)/H_(2)addition kinetic analysis coupled interactive effects chemical effects

Synthesis and oxidative desulfurization activity of vanadium-substituted Keggin-type polyoxometalate hybrid compounds

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Tungsten 2024年第3期6卷 529-535页

作者： Min Xing Xiao-ying Ji {1.-Xia Liu Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Department of Chemistry Northeast Normal University

SOxfrom fuel oil has caused much air pollution. Therefore, the desulfurization of fuel oil is necessary. Oxidative desulfurization（ODS）, as one of the most efficient nonhydrodesulfurization technologies, has become a major solution of desulfurization for fuel oil owing to its high reactivity for the removal of refractory organic sulfur compounds including dibenzothiophene（DBT） and its derivatives under mild reaction conditions [1.. Among them,

关键词： FRAMEWORK CHAIN

Genome-wide DNA methylome analysis reveals a critical role of methylation-dysregulated lncRNAs in autophagy regulation in glioblastoma

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Genes & Diseases 2024年第5期11卷 51-54页

作者： Hongying Zhao ying Liu Meiting Fei Lin Bo Lixia Wang Yaopeng shu Peiqi Ben Li Wang College of Bioinformatics Science and Technology Harbin Medical UniversityHarbinHeilongjiang 150081China

Glioblastoma(GBM)is the most common primary malignant intracranial tumor with a very poor *** this study,we systematically analyzed the DNA methylation alterations of autophagy-related lncRNAs and their association with drug therapies in *** identified 9 DNA methylation-dysregulated lncRNA regulators of autophagy-related genes as autophagy-related lncRNAs.A dysregulated regulatory network consisting of 9 autophagy-related lncRNAs and 237 differentially expressed autophagy-related genes was *** of small molecule drug candidates that may affect DNA methylation dysregulated lncRNA activity,including 45 drug lncRNA pairs,involving 7 DNA methylation dysregulated lncRNAs and 43 ***,we identified a DNA methylation-dysregulated autophagy-related lncRNA MIR1.5HG as an independent prognostic indicator for GBM.

关键词： regulated alterations drugs

The Effect of NMR Setting Parameters on Molecular Weight Determination of Polyether Diols

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Chinese Journal of Polymer Science 2024年第11期 1730-1737页

作者： shu-Jie Huang Xiao-Hong Li {1.-Feng Tu Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials State and Local Joint Engineering Laboratory for Novel Functional Polymeric MaterialsCollege of Chemistry Chemical Engineering and Materials Science Soochow University

Nuclear magnetic resonance （NMR） is an advanced technique for the molecular weight （MW） determination of polymers at quantitative *** this study,we investigate the effect of liquid1.-NMR instrumental setting parameters on the MW determination of polyether diols,namely poly（ethylene glycol）(PEG) and poly（tetramethylene oxide）(PTMO) diols,using hydroxymethylene groups as *** results show that the protons in chain-ends have larger spin-lattice relaxation time （T1. than those in main *** let most of the excited protons relax to the equilibrium state,the delay time （d1. should be much larger than T1.f ***1.C decoupling is inactive,the relative errors can be greater than 60%,due to the1.C-coupled proton satellite peaks,which can overlap with chain-end groups or be misassigned as *** optimal quantitative NMR conditions for the MW estimation of polyethers are revealed below:standard pulse with inverted gated1.C decoupling pulse sequence,32 scans,2.0 s acquisition time in 90 degree of flip angle and 30 s *** MWs determined from1. quantitative NMR are all smaller than those from SEC which are relative to polystyrene （PS） standards,since the size of polyether chains is larger than that of PS with the same *** addition,the MW obtained from SEC for PTMOs shows larger overestimation than PEGs,suggesting PEG chains are more flexible than PTMO’s.

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