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Removal of tungsten from molybdate solution by Fe-Mn binary oxide adsorbent

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Transactions of Nonferrous Metals Society of China 2017年第11期27卷 2492-2502页

作者： yun-feng song Li-hua HE Xing-yu CHEN Zhong-wei ZHAO School of Metallurgy and Environment Central South University Changsha 410083 China Institute of Nuclear and New Energy Technology Tsinghua University Beijing 100084 China

Considering the different geochemical enrichment behaviors of W and Mo,Fe?Mn binary oxide(FMBO),ferric hydroxide(Fe(OH)3)and manganese dioxide(MnO2)were studied to separate W from molybdate solution,*** experimental results demonstrated that Fe?Mn binary oxide(FMBO)was the most suitable adsorbent for the *** a wide pH(6.9?11.3)region,more than80%W removal efficiency and less than3%Mo loss could be *** addition,the Fe?Mn binary oxide adsorbent can be regenerated by treating with3mol/L NaOH,and the W adsorption efficiency was retained after five adsorption?desorption?regeneration *** these indicate that the Fe?Mn binary oxides have the potential for the separation of W from molybdate solution.

关键词： tungsten removal molybdate solution Fe.Mn binary oxide adsorption

HMGB2 knockdown ameliorates retinal ganglion cell injury by inhibiting NLRP3 inflammasome activation after retinal ischemia

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International Journal of Ophthalmology(English edition) 2025年第1期18卷 39-50页

作者： Lin-Ping Xue Hai-song feng Hubei University of Chinese Medicine Wuhan 430065Hubei ProvinceChina Department of Encephalopathy Hubei Provincial Hospital of Traditional Chinese MedicineWuhan 430070Hubei ProvinceChina

AIM:To explore the neuroprotective effects of high mobility group box 2(HMGB2)knockdown on retinal ganglion cells(RGCs)in the retinal ischemia-reperfusion injury(RIRI).METHODS:Oxygen-glucose deprivation(OGD)-injured RGCs from postnatal three-day C57BL/6 mice pups and high intraocular pressure(IOP)-induced RIRI mice were used as cellular and animal models of *** expression of HMGB2 in the retina of RIRI mice and OGD-injured RGCs was detected through reverse transcription-polymerase chain reaction(RT-qPCR)and Western *** effects of HMGB2 silencing on the morphological changes,RGCs survival,and cell apoptosis in mouse retinal tissues were observed through H&E staining,immunofluorescence staining with RNA-binding protein with multiple splicing(RBPMS)antibody,and TUNEL staining,*** viability and apoptosis were examined by CCK-8 and flow cytometry *** levels of proteins associated with NOD-like receptor thermal protein domain associated protein 3(NLRP3)-mediated pyroptosis[NLRP3,Caspase-1,GSDMD-N,interleukin(IL)-1β,IL-18]in vivo and in vitro were measured by Western ***:HMGB2 protein and NLRP3 were upregulated in the retina of RIRI mice and OGD-injured RGCs(P<0.001).The retina was edematous,accompanied by disorganized cell arrangement and decreased thickness of all layers,and obvious vacuoles in ganglion cell ***2 silencing alleviated the reduction in total retinal thickness and the severity of retinal tissue damage as well as suppressed RGC loss and retinal cell apoptosis in RIRI ***-induced RGC apoptosis was ameliorated after downregulation of HMGB2 in *** injection of the AAV-sh-HMGB2 and si-HMGB2 resulted in significantly decrease of NLRP3,Caspase-1,GSDMD-N,IL-1β,and IL-18 protein levels in the retinal tissues of RIRI mice and OGD-injured RGCs,respectively(all P<0.001).CONCLUSION:HMGB2 knockdown protects against RGC apoptosis and pyroptosis after RIRI through suppressing NLRP3 inflammasome activ

关键词： HMGB2 retinal ischemia-reperfusion injury retinal ganglion cell apoptosis pyroptosis NLRP3 mice

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医患纠纷中“80后”人群的情绪分析

医学与哲学（A） 2011年第9期32卷 33-34页

作者：封云松昆明市第一人民医院云南昆明650011

"80后"人群作为医患纠纷中患者一方的情形日渐增多。作为中国第一代独生子女,其整体表现出较为独特的群体心理特点,由此导致他们在医患纠纷过程中会出现一些特殊的行为方式。这些心理特点及行为方式常见的有五种。在掌握其特点的基础上... 详细信息

"80后"人群作为医患纠纷中患者一方的情形日渐增多。作为中国第一代独生子女,其整体表现出较为独特的群体心理特点,由此导致他们在医患纠纷过程中会出现一些特殊的行为方式。这些心理特点及行为方式常见的有五种。在掌握其特点的基础上采取四种相应对策,可有效化解医患纠纷。

关键词：医患纠纷 80后心理特征情绪控制

Theoretical and experimental study on high-entropy flotation of micro-fine cassiterite

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International Journal of Mining Science and Technology 2025年第1期35卷 19-39页

作者： Shuming Wen Yongchao Miao Yanyu Tang Zhengyong song Qicheng feng State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Faculty of Land Resource EngineeringKunming University of Science and TechnologyKunming 650093China

Tin is a critical metal for various industries,making its recovery from low-grade cassiterite ores *** study aimed to optimize the flotation recovery of cassiterite using multi-component collector *** collectors were initially selected through micro-flotation tests,leading to the identification of optimal proportions for a four-component collector system(SHA-OHA-SPA-DBIA in a 4:3:2:1 ratio).Molecular dynamics simulations and surface tension tests were used to investigate the micellar behavior of these collectors in aqueous *** adsorption characteristics were quantified using microcalorimetry,enabling the determination of collection entropy and changes in Gibbs free *** four-component collector system showed the highest entropy change and the most favorable Gibbs free energy,leading to a cassiterite recovery of above 90%at a concentration of 8.0×10^(5)mol/*** analytical techniques were employed to systematically characterize the adsorption *** findings revealed a positive correlation between the adsorption products formed by the multicomponent collectors on the cassiterite surface and the entropy ***-scale testing of the high-entropy collector system produced a tin concentrate with an Sn grade of 6.17%and an Sn recovery of 82.43%,demonstrating its substantial potential for practical applications in cassiterite flotation.

关键词： High-entropy Flotation Cassiterite Adsorption Molecular dynamics QCM-D

Adaptive Control of a Flexible Manipulator With Unknown Hysteresis and Intermittent Actuator Faults

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IEEE/CAA Journal of Automatica Sinica 2025年第1期12卷 148-158页

作者： Shouyan Chen Weitian He Zhijia Zhao yun feng Zhijie Liu Keum-Shik Hong School of Mechanical and Electrical Engineering Guangzhou University the School of Control Science and Engineering Shandong University IEEE the College of Electrical and Information Engineering Hunan University the National Engineering Research Center for Robot Visual Perception and Control Technology Hunan University the School of Intelligence Science and Technology University of Science and Technology Beijing (USTB) the Institute for Future the School of AutomationQingdao University the School of Mechanical Engineering Pusan National University

In this study, we consider a single-link flexible manipulator in the presence of an unknown Bouc-Wen type of hysteresis and intermittent actuator faults. First, an inverse hysteresis dynamics model is introduced, and then the control input is divided into an expected input and an error compensator. Second,a novel adaptive neural network-based control scheme is proposed to cancel the unknown input hysteresis. Subsequently,by modifying the adaptive laws and local control laws, a fault-tolerant control strategy is applied to address uncertain intermittent actuator faults in a flexible manipulator system. Through the direct Lyapunov theory, the proposed scheme allows the state errors to asymptotically converge to a specified interval. Finally,the effectiveness of the proposed scheme is verified through numerical simulations and experiments.

关键词： Adaptive control flexible manipulator intermittent actuator faults inverse hysteresis dynamics vibration control

Improvement of charge-transfer kinetics via MXene and cobalt containing polyoxometalate loading on CdS for photocatalytic hydrogen production

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Science China Chemistry 2025年第2期68卷 772-780页

作者： Yu feng Xiao Fang Jinnuo Zang Bin song Chunlian Hu Xiaoyu Dong Yong Ding State Key Laboratory of Applied Organic Chemistry Key Laboratory of Advanced Catalysis of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China State Key Laboratory of Low Carbon Catalysis and Carbon Dioxide Utilization State Key Laboratory for Oxo Synthesis and Selective OxidationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Hydrogen is a renewable and clean energy,and photocatalytic water splitting for hydrogen evolution technology is a promising technical means to solve the development *** this study,the ternary composite Co_(8)POM@MXene–CdS hybrid catalyst was constructed and used for photocatalytic hydrogen *** the condition of AM 1.5G simulated sunlight,the photocatalytic H_(2) evolution rate of the ternary composite was 8.13 mmol g^(−1) h^(−1),which was more than 25 times higher than that of the bare *** means of synchronous illumination X-ray photoelectron spectroscopy(SI-XPS)and density functional theory(DFT)calculations,it was proved that the loading of MXene and Co_(8)POM improved the photogenerated carrier separation and immigration efficiency on *** photogenerated electrons transfer from CdS to ***_(8)POM containing the{Co_(4)O_(3)}quasi-cubane,as an oxidation co-catalyst,accepts photogenerated holes from CdS to catalyze the oxidation reaction of TEOA,which improves the photocatalytic hydrogen production activity and the stability of CdS.

关键词： CdS polyoxometalates MXene hybrid catalyst photocatalytic hydrogen evolution

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基于支持向量机的红外成像跟踪算法

光电工程 2007年第8期34卷 20-24页

作者：范彬冯云松杨丽杨华解放军电子工程学院安徽省红外与低温等离子体重点实验室安徽合肥230037

为提高传统红外成像跟踪算法的性能,克服相关跟踪对"图像灰度一致性"的要求,在分析光流方程和支持向量机基本理论的基础上,提出一种由光流方程引出的基于支持向量机的成像跟踪算法。以机动车的红外图像序列为研究对象,该算法利用支持向... 详细信息

为提高传统红外成像跟踪算法的性能,克服相关跟踪对"图像灰度一致性"的要求,在分析光流方程和支持向量机基本理论的基础上,提出一种由光流方程引出的基于支持向量机的成像跟踪算法。以机动车的红外图像序列为研究对象,该算法利用支持向量机的分类值替代方差和误差函数,将每帧中分类值最大的位置看作当前帧中目标的位置,从而实现了对目标的跟踪。该算法不仅不要求满足"图像灰度一致性",而且有效地减少了跟踪的累积误差。研究结果表明,与传统相关跟踪算法相比,本文提出的跟踪算法的精度、稳定度和鲁棒性都有所提高。

关键词：支持向量机成像跟踪光流红外跟踪

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红外三色被动测距

光学精密工程 2012年第12期20卷 2680-2685页

作者：路远冯云松凌永顺乔亚电子工程学院脉冲功率激光技术国家重点实验室安徽合肥230037 电子工程学院安徽省红外与低温等离子体重点实验室安徽合肥230037

由于目标的红外辐射在大气中传输时其不同波长的辐射强度比值会随着传输距离的改变而发生变化,故波长的辐射强度比包含了目标的距离信息。基于上述原理,本文研究了利用比色方法依据空中目标的红外辐射对其进行测距的方法。推导了目标辐... 详细信息

由于目标的红外辐射在大气中传输时其不同波长的辐射强度比值会随着传输距离的改变而发生变化,故波长的辐射强度比包含了目标的距离信息。基于上述原理,本文研究了利用比色方法依据空中目标的红外辐射对其进行测距的方法。推导了目标辐射强度色比与目标温度、辐射传输距离、大气消光系数之间的关系。在大气消光系数相对固定时,通过测量不同波长的辐射强度比值对目标进行了测距,推导出了红外三色比距离方程。根据大气辐射传输衰减计算模型,选择8.5、9.0、9.5μm 3个波长作为色比波长,2km处300K黑体作为被测目标,画出了色比测距图。分析显示,图上作业得到的目标距离和温度与实际目标的距离和温度基本相符。另外,利用本方法通过一次测量即可获得目标的距离和温度。

关键词：红外测距被动测距比色法大气衰减

Comparative kinetic analysis of conventional and ultrasound-assisted leaching of scheelite by sodium carbonate

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Transactions of Nonferrous Metals Society of China 2018年第4期28卷 775-782页

作者： Jin-hong YANG Li-hua HE Xu-heng LIU Wen-tao DING yun-feng song Zhong-wei ZHAO School of Metallurgy and Environment Central South UniversityChangsha 410083China

For further comprehending the mechanism of the intensification of ultrasound for extraction,the difference of leaching kinetics between the ultrasound-assisted and conventional sodium carbonate leaching of scheelite was studied,and the corresponding kinetic equations were *** results indicate that the obtained apparent activation energy with or without ultrasound is same 72 kJ/mol,and both reactions are controlled by surface chemical *** comparing the leaching kinetics of scheelite by Na2CO3,NaOH and Na3PO4 reactants with or without ultrasound,a general conclusion for scheelite hydrometallurgy is *** the process with the formation of compact product layer,the intensification of the tungsten extraction with ultrasound mainly reflects in the stripping and elimination of product layer,corresponding to the transformation of kinetic controlling step from diffusion controlling step and reduction of apparent activation *** the one without compact product layer or with a loose and porous product layer,the intensification mainly embodies in the increase of frequency factor,and the controlling step and apparent activation energy of the reaction always remain constant.

关键词： scheelite kinetics ultrasound ultrasonic chemistry activation energy