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Endow activated carbon with the ability to activate peroxymonosulfate for the treatment of refractory organics

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Green Chemical Engineering 2022年第4期3卷 374-384页

作者： Pei-Lin Yi Wen-Jie Zhang Ling-Hui Kong rong-Fang shen Xiao-Jing Guo Xi Yan Yan Chen Wan-Zhong Lang The Education Ministry Key Laboratory of Resource Chemistry Shanghai Key Laboratory of Rare Earth Functional MaterialsDepartment of Chemistry and Chemical EngineeringShanghai Normal University200234China Division of Nuclear Materials Science and Engineering Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai201800China

Herein,we demonstrated that various activated carbons could be endowed with high ability activating peroxymonosulfate(PMS)just through pyrolysis for the degradation of various organic *** ofloxacin(OFX)was proved to be degraded rather than adsorbed in the advanced oxidation *** catalyst showed good stability and could be recovered by simple pyrolysis showing the initial *** defects were identified as active sites of the catalyst,andπ-π^(*)shake up was related to the catalyst *** electron transfer was verified to be responsible for the degradation of *** inhibition effect of furfuryl alcohol(FFA)on the degradation of contaminant was proved to be insufficient to verify^(1)O_(2).The main OFX degradation intermediates were identified by LC-MS,and possible degradation pathways were *** study provided a simple way for the development of low-cost,metal-free,and high-efficient carbonaceous materials to activate PMS in advanced oxidation processes,and proposed new insights for the exploration of PMS activation mechanism.

关键词： Activated carbon Advanced oxidation processes Peroxymonosulfate Electron transfer pathway

舌三针联合间歇性θ爆发刺激对脑卒中后吞咽障碍患者吞咽功能及表面肌电的影响

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安徽中医药大学学报 2024年第1期43卷 62-66页

作者：袁飞袁爱红童宏梅解鸿宇刘友祥沈蓉朱少全安徽中医药大学第一附属医院安徽合肥230031

目的观察舌三针联合间歇性θ爆发刺激(intermittent theta burst stimulation,iTBS)对脑卒中后吞咽障碍患者吞咽功能及表面肌电(surface electromyography,sEMG)的影响。方法将40例脑卒中后吞咽障碍患者随机分为对照组和观察组,每组20例... 详细信息

目的观察舌三针联合间歇性θ爆发刺激(intermittent theta burst stimulation,iTBS)对脑卒中后吞咽障碍患者吞咽功能及表面肌电(surface electromyography,sEMG)的影响。方法将40例脑卒中后吞咽障碍患者随机分为对照组和观察组,每组20例;两组患者均进行常规吞咽训练,对照组在此基础上行舌三针治疗,观察组在对照组治疗基础上增加iTBS治疗,疗程均为4周;观察和比较两组患者治疗前后洼田饮水试验(water swallowing test,WST)评分、标准吞咽功能评估(standardized swallowing assessment,SSA)量表评分、吞咽生活质量(swallowing quality of life,SWAL-QOL)量表评分、sEMG最大波幅值及吞咽时程。结果治疗后两组患者WST评分、SSA量表评分、吞咽时程均较治疗前显著减少(P<0.05),SWAL-QOL量表评分、sEMG最大波幅值均较治疗前显著增加(P<0.05);且观察组WST评分、SSA量表评分、吞咽时程减少程度,SWAL-QOL量表评分、sEMG最大波幅值增加程度均显著大于对照组(P<0.05)。结论舌三针联合iTBS治疗可显著改善脑卒中后吞咽障碍患者吞咽功能并提高生活质量。

关键词：脑卒中后吞咽障碍舌三针间歇性θ爆发刺激表面肌电

启东市近十年无偿献血情况回顾性分析及策略研究

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黑龙江医学 2024年第6期48卷 711-713页

作者：沈蓉张利华施东平陆敏敏顾红健蔡军梅徐春香启东市人民医院江苏启东226200

目的:对启东市近十年无偿献血情况运行趋势进行回顾性分析,找出无偿献血工作的不足,研究相应对策,为进一步推动启东市无偿献血工作提供理论指导。方法:采用回顾性分析方法,从江苏省血液信息管理系统中收集2011—2020年无偿献血相关数据... 详细信息

目的:对启东市近十年无偿献血情况运行趋势进行回顾性分析,找出无偿献血工作的不足,研究相应对策,为进一步推动启东市无偿献血工作提供理论指导。方法:采用回顾性分析方法,从江苏省血液信息管理系统中收集2011—2020年无偿献血相关数据,对其进行分析、总结和归纳。结果:无偿献血总采集量呈上升趋势,献血量从2011年的10 209.25单位升高至2020年的10 921.5单位,血液总量升高6.98%;街头献血人次从2016年的1 774人次下降到2020年的1 387人次,下降21.82%;200 mL献血量比例逐年递减,从2011年的52.30%下降至2020年的9.30%,下降82.2%;女性献血人次高于男性;献血者年龄35~45岁比例最高,占比30.15%。结论:应加强无偿献血的宣传,多样化、多渠道地招募无偿献血者,引导广大群众积极参加无偿献血,形成社会关心、支持无偿献血的良好环境。

关键词：无偿献血宣传招募回顾性分析

Pre-bainitic Transformation in Fe-Ni Alloy

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Journal of Iron and Steel Research(International) 1998年第2期5卷 49-51页

作者： shen rong Cheng Juqiang Kang Mokuang Northwestern Polytechnical University

The behaviour of the pre bainitic transformation in Fe Ni alloy was investigated by using SAM, X ray diffraction and TEM. The results show that there is segregation of Ni atoms in austenite and that bainite forms i... 详细信息

关键词： bainite pre bainitic transformation Fe Ni alloy

Nucleation of Bainite around Grain Boundary

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Journal of Materials Science & Technology 1998年第4期14卷 383-384页

作者： shen, rong Cheng, Juqiang Wang, Liuding Kang, Mokuang Northwestern Polytech Univ Dept Mat Sci & Engn Xian 710072 Peoples R China

The scanning Auger microprobe study on Fe-8Mn-1C alloy shows that the carbon atoms segregate at grain boundary during bainitic transformation and solute atoms depleted regions form near the grain boundary. The observation of optical and TEM indicates that bainite nucleates in solute atoms depleted regions near the grain boundary. (Edited author abstract) 11 Refs.

关键词： Iron alloys

Bilayer Compounded Polytetrafluoroethylene Membrane for Enhanced Oil-Water Emulsion Separation

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Chinese Journal of Polymer Science 2024年第6期42卷 838-850页

作者： Yu-Liang Yang Tai-Ran Zhang Yan-Ting Han Shao-Yun Guo Qin-Gong rong Jia-Bin shen State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan UniversitySichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing TechnologyChengdu610065China West China Hospital/West China School of Nursing Sichuan UniversityChengdu610041China Shandong Senrong New Materials Co. Ltd.Zibo256401China

In order to achieve efficient and durable oil-water emulsion separation,the membranes possessing high separation efficiency and mechanical strength attract extensive attention and are in great *** present study,a kind of polytetrafluoroethylene(PTFE)-based bilayer membrane was fabricated by electrospinning fibrous PTFE(fPTFE)on an expanded PTFE(ePTFE)*** morphological observation revealed that the fibrous structure of the fPTFE layer could be tailored by controlling the formulation of spinning *** addition of appropriate polyoxyethylene(PEO)would make the fibers in the fPTFE layer finer and more *** a result,the compounded membrane exhibited a small pore size of approximately 1.25µm and a substantial porosity nearing 80%.This led to super-hydrophobicity,characterized by a high water contact angle(WCA)of 149.8°,and facilitated rapid oil *** water-in-oil emulsion separation experiment further confirmed that the compounded membrane not only had a high separation efficiency closing 100%,but such an outstanding separation capacity could be largely retained,either through multiple cycles of use or through strong acid(pH=1),strong alkali(pH=12),or high-temperature(100°C)***,the mechanical behavior of the bilayer membrane was basically contributed by that of each layer in terms of their volume *** significantly,the poor creep resistance of fPTFE layer was suppressed by compounding with ePTFE ***,this study has laid the groundwork for a novel approach to create PTFE-based compounded membranes with exceptional overall characteristics,showing promise for applications in the realm of emulsion separation.

关键词： ePTFE Electrospinning membrane Bilayer compounding Emulsion separation

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超声辅助提取鸦胆子油的工艺优化研究

广州化工 2024年第9期52卷 89-91页

作者：朱华陈秋娴李巧冰彭可陈蕤汪博沈榕谢文敏广东科贸职业学院食品生物学院广东广州510430

为了获得超声辅助提取鸦胆子油的最优工艺条件,通过单因素和正交试验法进行优化。通过单因素试验确定最适单因素条件:提取温度40℃、液料比5∶1、超声时间3 h。在单因素试验基础上,选择试验因素和水平,设计正交试验考察鸦胆子油的最佳... 详细信息

为了获得超声辅助提取鸦胆子油的最优工艺条件,通过单因素和正交试验法进行优化。通过单因素试验确定最适单因素条件:提取温度40℃、液料比5∶1、超声时间3 h。在单因素试验基础上,选择试验因素和水平,设计正交试验考察鸦胆子油的最佳提取工艺。结果表明,最佳提取工艺参数为:超声时间3 h、提取温度45℃、液料比5∶1(mL∶g)。得油率可达23%,该方法操作简便、提取率高、条件温和,可用于鸦胆子油的提取。

关键词：鸦胆子油超声提取正交实验

Recent advancements in hydrometallurgical recycling technologies of spent lithium-ion battery cathode materials

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Rare Metals 2024年第3期43卷 879-899页

作者： Juan Wu Li Xiao Li shen Jian-Jun Ran Hui Zhong Yi-rong Zhu Han Chen College of Materials and Advanced Manufacturing Hunan University of TechnologyZhuzhou412007China School of Resources Processing and Bioengineering Central South UniversityChangsha410083China Guangdong JiaNa Energy Technology Company Qingyuan513000China

The rapidly increasing production of lithium-ion batteries(LIBs)and their limited service time increases the number of spent LIBs,eventually causing serious environmental issues and resource *** the perspectives of clean production and the development of the LIB industry,the effective recovery and recycling of spent LIBs require urgent *** study provides an overview of the current hydrometallurgical processes employed in the recycling of spent cathode materials,focusing on the leaching of valuable metals and their *** particular,this research reviews the various leaching systems(inorganic acid,organic acid,and ammonia)and the separation of valuable metals,and then,recommendations for subsequent study are offered in an attempt to contribute to the development of highly efficient methods for recycling spent cathode *** addition,a range of existing technologies,such as solvent extraction,chemical precipitation,electrochemical deposition,and regeneration,for the postprocessing of leaching solutions are ***,the promising technologies,existing challenges and suggestions with respect to the development of effective and environmentally friendly recycling methods for handling spent cathode materials are identified.

关键词： Spent lithium-ion batteries(LIBs) Cathode material Hydrometallurgy Leaching Recycling

FLUID-STRUCTURE INTERACTION OF HYDRODYNAMIC DAMPER DURING THE RUSH INTO THE WATER CHANNEL

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Journal of Hydrodynamics 2008年第5期20卷 583-590页

作者： XU Qing-xin shen rong-ying State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Shanghai 200240China

The hydrodynamic damper is a device to decrease the motion of armament carrier by use of the water resistance. When hydrodynamic damper rushes into the water channel with high velocity, it is a complicated flow phenomenon with fluid-structure interaction, free surface and moving interface. Numerical simulation using the Smoothed Particle Hydrodynamics （SPH） method coupled with the Finite Element （FE） method was successfully conducted to predict the dynamic characteristics of hydrodynamic damper. The water resistance, the pressure in the interface and the stress of structure were investigated, and the relationship among the peak of water resistance, initial velocity and actual draught was also discussed. The empirical formula was put forward to predict the water resistance. And it is found that the resistance coefficient is commonly in the range of 0.3 ≤ C ≤ 0.5, when the initial velocity is larger than 50 m/s. It can be seen that the SPH method coupled with the FE method has many obvious advantages over other numerical methods for this complicated flow problem with fluid-structure interaction.

关键词： hydrodynamic damper fluid-structure interaction Smoothed Particle Hydrodynamics (SPH) method Finite Element (FE) method