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吸附分离水体中铀的吸附材料研究新进展

精细化工 2018年第4期35卷 549-555页

作者：赵悦赵春雷王锐宫红姜恒辽宁石油化工大学化学与材料科学学院

铀是最危险的放射性金属之一,广泛存在于核燃料的制备、乏燃料后处理和矿石开采等生产活动所产生的含铀废水中,严重威胁水生生态系统与人类健康。吸附法处理水中的U（Ⅵ）具有便捷高效、经济和选择性好的优势。综述了近3年对水中铀吸附... 详细信息

铀是最危险的放射性金属之一,广泛存在于核燃料的制备、乏燃料后处理和矿石开采等生产活动所产生的含铀废水中,严重威胁水生生态系统与人类健康。吸附法处理水中的U（Ⅵ）具有便捷高效、经济和选择性好的优势。综述了近3年对水中铀吸附材料的研究新进展,介绍了无机、有机、有机无机复合和生物衍生类吸附材料的制备,结构特点,吸附性能,并对铀吸附材料的研究方向进行了展望。

关键词：铀吸附水处理吸附材料

分散固相萃取/超高效液相色谱-串联质谱法测定玉米和土壤中噻酮磺隆-异噁唑草酮及其代谢物残留

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分析测试学报 2017年第3期36卷 355-360页

作者：王东闫思月贾春虹赵尔成北京市农林科学院植物保护环境保护研究院北京100097

建立了分散固相萃取结合超高效液相色谱-串联质谱快速检测玉米和土壤中噻酮磺隆、异噁唑草酮及其代谢物RPA203328与RPA202248残留的分析方法。样品经1%甲酸-乙腈溶剂提取,氯化钠盐析后,提取液经分散固相萃取净化,超高效液相色谱-串联质... 详细信息

建立了分散固相萃取结合超高效液相色谱-串联质谱快速检测玉米和土壤中噻酮磺隆、异噁唑草酮及其代谢物RPA203328与RPA202248残留的分析方法。样品经1%甲酸-乙腈溶剂提取,氯化钠盐析后,提取液经分散固相萃取净化,超高效液相色谱-串联质谱仪检测。考察了提取溶剂及吸附剂种类对分析结果的影响,优化了液相色谱-质谱条件,评估了优化实验条件下的方法性能。结果表明:在玉米样品中,4种分析物的基质效应均大于10%;在土壤样品中,除RPA202248基质效应小于10%外,其余3种分析物的基质效应均大于10%。噻酮磺隆、异噁唑草酮及其代谢物在0.001~1.0μg/m L范围内线性关系良好,相关系数为0.994 5~0.999 5。加标浓度在0.005~0.1 mg/kg范围内的回收率为72.9%~116.5%,相对标准偏差(n=5)为0.75%~17.8%,定量下限为0.005~0.01 mg/kg。该方法前处理简单,分析时间短,准确度和灵敏度高,适用于玉米和土壤中噻酮磺隆、异噁唑草酮及其代谢物残留的快速检测。

关键词：分散固相萃取超高效液相色谱串联质谱法噻酮磺隆异噁唑草酮代谢物农药残留玉米土壤

Influences of surface mount quad flat no-lead package solder joint shape parameters on fatigue life

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Influences of surface mount quad flat no-lead package solder...

Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

第二届亚洲机械电子学学术会议

作者： HUANG chun-yue WU zhao-hua ZHOU De-jian HUANG Hong-yan (Department of Electronic Machinery and Traffic Engineering,Guilin University of Electronic Technology,Guilin,Guangxi 541004,China)

The solder joints reliability of a 0.5-mm lead pitch,16-pin quad flat no-lead package(QFN)component was studied by nonlinear finite element analysis(FEA) based on the 3-D *** stress/strain distributions within the solder joint and the plastic strain range of the solder joint were *** thermal fatigue life of the solder joint was calculated using Coffin-Manson equation based on the calculated plastic strain *** influences of shape parameters including the length of pad,the width of pad and the stand-off on the thermal fatigue life of the solder joints were also *** results show that the stress and strain distribution in the solder joint are not uniform;the interface between the bottom of the component and solder joint is the high stress and strain region,the fatigue life of the solder joint is influenced by the shape parameters *** solder joint with the pad size of 0.7mm×0.28mm and the stand-off of 0.135mm has the longer fatigue life than any others.

关键词： Quad flat package solder joint shape nonlinear finite element analysis thermal fatigue life

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin Li Jian Xiang Lu Qiu Xiaohan Chen Yinkun zhao Yujue Wang Qu yue Taotao Gao Wenlong Liu Dan Xiao zhaoyu Jin Panpan Li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

Inhibiting SHP2 reduces glycolysis, promotes microglial M1 polarization, and alleviates secondary inflammation following spinal cord injury in a mouse model

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Neural Regeneration Research 2025年第3期20卷 858-872页

作者： Xintian Ding chun Chen Heng zhao Bin Dai Lei Ye Tao Song Shuai Huang Jia Wang Tao You Department of Orthopedics The First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Department of Orthopedics Provincial Hospital Affiliated to Anhui Medical UniversityHefeiAnhui ProvinceChina

Reducing the secondary inflammatory response, which is partly mediated by microglia, is a key focus in the treatment of spinal cord injury. Src homology 2-containing protein tyrosine phosphatase 2(SHP2), encoded by PTPN11, is widely expressed in the human body and plays a role in inflammation through various mechanisms. Therefore, SHP2 is considered a potential target for the treatment of inflammation-related diseases. However, its role in secondary inflammation after spinal cord injury remains unclear. In this study, SHP2 was found to be abundantly expressed in microglia at the site of spinal cord injury. Inhibition of SHP2 expression using siRNA and SHP2 inhibitors attenuated the microglial inflammatory response in an in vitro lipopolysaccharide-induced model of inflammation. Notably, after treatment with SHP2 inhibitors, mice with spinal cord injury exhibited significantly improved hind limb locomotor function and reduced residual urine volume in the bladder. Subsequent in vitro experiments showed that, in microglia stimulated with lipopolysaccharide, inhibiting SHP2 expression promoted M2 polarization and inhibited M1 polarization. Finally, a co-culture experiment was conducted to assess the effect of microglia treated with SHP2 inhibitors on neuronal cells. The results demonstrated that inflammatory factors produced by microglia promoted neuronal apoptosis, while inhibiting SHP2 expression mitigated these effects. Collectively, our findings suggest that SHP2 enhances secondary inflammation and neuronal damage subsequent to spinal cord injury by modulating microglial phenotype. Therefore, inhibiting SHP2 alleviates the inflammatory response in mice with spinal cord injury and promotes functional recovery postinjury.

关键词： apoptosis glycolysis inflammatory response microglia neurons polarization spinal cord injury Src homology 2-containing protein tyrosine phosphatase 2

Return to work in young and middle-aged colorectal cancer survivors:Factors influencing self-efficacy,fear,resilience,and financial toxicity

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World Journal of Gastroenterology 2025年第1期31卷 79-92页

作者： Dan Hu yue Li Hua Zhang Lian-Lian Wang Wen-Wen Liu Xin Yang Ming-zhao Xiao Hao-Ling Zhang Juan Li Department of Nursing The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Nursing National Clinical Research Center for Child Health and DisordersMinistry of Education Key Laboratory of Child Development and DisordersChildren’s Hospital of Chongqing Medical UniversityChongqing 400014China Department of Gastrointestinal Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Biomedical Science Advanced Medical and Dental InstituteUniversity Sains MalaysiaPenang 13200Malaysia Academic Affairs Office The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

BACKGROUND Return to work(RTW)serves as an indication for young and middle-aged colorectal cancer(CRC)survivors to resume their normal social ***,these survivors encounter significant challenges during their RTW ***,scientific research is necessary to explore the barriers and facilitating factors of returning to work for young and middle-aged CRC *** To examine the current RTW status among young and middle-aged CRC survivors and to analyze the impact of RTW self-efficacy(RTW-SE),fear of progression(FoP),eHealth literacy(eHL),family resilience(FR),and financial toxicity(FT)on their RTW *** A cross-sectional investigation was adopted in this *** September 2022 to February 2023,a total of 209 participants were recruited through a convenience sampling method from the gastrointestinal surgery department of a class A tertiary hospital in *** investigation utilized a general information questionnaire alongside scales assessing RTW-SE,FoP,eHL,FR,and *** analyze the factors that influence RTW outcomes among young and middle-aged CRC survivors,Cox regression modeling and Kaplan-Meier survival analysis were *** A total of 43.54%of the participants successfully returned to work,with an average RTW time of 100 *** regression univariate analysis revealed that RTW-SE,FoP,eHL,FR,and FT were significantly different between the non-RTW and RTW groups(P<0.05).Furthermore,Cox regression multivariate analysis identified per capita family monthly income,job type,RTW-SE,and FR as independent influencing factors for RTW(P<0.05).CONCLUSION The RTW rate requires further *** levels of RTW-SE and FR were found to significantly increase RTW among young and middle-aged CRC *** professionals should focus on modifiable factors,such as RTW-SE and FR,to design targeted RTW support programs,thereby facilitating their timely reintegration into mainstream society.

关键词： Return to work Colorectal neoplasms Return-to-work self-efficacy Fear of progression Family resilience Financial toxicity

Understanding the local structure and thermophysical behavior of Mg-La liquid alloys via machine learning potential

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia zhao Taixi Feng Guimin Lu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potassium and Lithium Strategic Resources East China University of Science and TechnologyShanghai 200237China

The local structure and thermophysical behavior of Mg-La liquid alloys were in-depth understood using deep potential molecular dynamic(DPMD) simulation driven via machine learning to promote the development of Mg-La alloys. The robustness of the trained deep potential(DP) model was thoroughly evaluated through several aspects, including root-mean-square errors(RMSEs), energy and force data, and structural information comparison results;the results indicate the carefully trained DP model is reliable. The component and temperature dependence of the local structure in the Mg-La liquid alloy was analyzed. The effect of Mg content in the system on the first coordination shell of the atomic pairs is the same as that of temperature. The pre-peak demonstrated in the structure factor indicates the presence of a medium-range ordered structure in the Mg-La liquid alloy, which is particularly pronounced in the 80at% Mg system and disappears at elevated temperatures. The density, self-diffusion coefficient, and shear viscosity for the Mg-La liquid alloy were predicted via DPMD simulation, the evolution patterns with Mg content and temperature were subsequently discussed, and a database was established accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides new guidance for related studies.

关键词： magnesium-lanthanum liquid alloys local structure macroscopic properties thermodynamic behavior deep potential mo-lecular dynamic simulation

The cGAS-STING-interferon regulatory factor 7 pathway regulates neuroinflammation in Parkinson's disease

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Neural Regeneration Research 2025年第8期20卷 2361-2372页

作者： Shengyang Zhou Ting Li Wei Zhang Jian Wu Hui Hong Wei Quan Xinyu Qiao chun Cui Chenmeng Qiao Weijiang zhao Yanqin Shen Laboratory of Neurodegenerative and Neuroinjury Diseases Wuxi Medicine SchoolJiangnan UniversityWuxiJiangsu ProvinceChina

Interferon regulatory factor 7 plays a crucial role in the innate immune ***,whether interferon regulatory factor 7-mediated signaling contributes to Parkinson's disease remains *** we report that interferon regulatory factor 7 is markedly up-regulated in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced mouse model of Parkinson's disease and co-localizes with microglial *** the selective cyclic guanosine monophosphate adenosine monophosphate synthase inhibitor RU.521 and the stimulator of interferon genes inhibitor H151 effectively suppressed interferon regulatory factor 7 activation in BV2 microglia exposed to 1-methyl-4-phenylpyridinium and inhibited transformation of mouse BV2 microglia into the neurotoxic M1 *** addition,si RNA-mediated knockdown of interferon regulatory factor 7 expression in BV2 microglia reduced the expression of inducible nitric oxide synthase,tumor necrosis factorα,CD16,CD32,and CD86 and increased the expression of the anti-inflammatory markers ARG1 and *** together,our findings indicate that the cyclic guanosine monophosphate adenosine monophosphate synthase-stimulator of interferon genes-interferon regulatory factor 7 pathway plays a crucial role in the pathogenesis of Parkinson's disease.

关键词： cyclic guanosine monophosphate adenosine monophosphate synthase H151 interferon regulatory factor 7 M1 phenotype neurodegenerative disease neuroinflammation Parkinson’s disease RU521 STING type I interferon

Modeling for heterogeneous objects based on X language: A modeling method of algorithm-hardware

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International Journal of Modeling, Simulation, and Scientific Computing 2022年第2期13卷 125-147页

作者： Liu yue zhao chun School of Computer Beijing Information Science and Technology University Beijing 100101P.R.China

With the development of system engineering and related technology,modeling and sim-ulation of complex systems need to include many disciplines,modeling languages,sim-ulation environments,*** using unified modeling language to build models,barriers among different fields can be broken;the efficiency of model integration can be ***,a complex system contains some integrated circuit modules,which can be used for control or calculation of the *** with system model,integrated circuit model is more fine-grained and lower-level and contains logic for control and ***,a method that modeling integrated circuit by unified modeling language is *** this paper,a unified modeling language is introduced,called X language,and a modeling method of algorithm-hardware based on the X language is *** of all,the hardware characteristics of the Kalman filter algorithm are extracted by analyzing the ***,X language models are built to describe the ***,the X language models are converted to Very-High-Speed Integrated Circuit Hardware Description Language(VHDL).Finally,the algorithm-hardware mod-els are simulated and *** results show that the algorithm-hardware modeling method based on X language is feasible.

关键词： Model integration X language VHDL