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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 wastage.From the perspectives of clean production and the development of the LIB industry,the effective recovery and recycling of spent LIBs require urgent solutions.This 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 postprocessing.In 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 materials.In addition,a range of existing technologies,such as solvent extraction,chemical precipitation,electrochemical deposition,and regeneration,for the postprocessing of leaching solutions are summarized.Finally,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

Risk Factors of Enternal Nutrition Intolerance in Septic Patients:A Case-control Study

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Current Medical Science 2024年第2期44卷 328-332页

作者： Li-zhu WANG Yan XIANG Qian LI yi-rong ZHU Jue FANG Xiao-dan LUI Zhao-cai ZHANG Department of Nursing The Second Afiliated HospitalZhejiang University School of MedicineHangzhou 310009China Department of Critical Care Medicine The Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009China Key Laboratory of the Diagnosis and Treatment for Severe Trauma and Burn of Zhejiang Province Hangzhou 310009China Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine Hangzhou 310009China

Objective:This study aimed to investigate the incidence of enteral nutrition intolerance(ENI)in patients with sepsis and explore potential risk factors.Methods:A case-control study was conducted in patients with sepsis who were receiving enteral nutrition(EN)at a tertiary hospital in China.The included patients were divided into the ENI group and the non-ENI group.Univariate and multivariate analyses were performed to identify the risk factors for ENI.Results:A total of 859 patients were included in the study.Among them,288(33.53%)patients experienced symptoms of ENI,including diarrhea,vomiting,bloating,and gastric retention.Logistic regression analysis revealed that the Acute Physiology and Chronic Health Evaluation H(APACHE H)score,thoracocentesis,and usage of cardiotonic drugs(namely,inotropes)were independent predictors of the ENI.Conclusion:The incidence of ENI is relatively high in patients with sepsis,especially in those who have higher APACHE H scores,have undergone thoracocentesis,and have received inotropes.

关键词： sepsis enteral nutrition intolerance influencing factor

Isotropic Tuning of Electrochemical Etching forthe Nanometric Finishing of Metals

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Nanomanufacturing and Metrology 2022年第3期5卷 283-296页

作者： rong yi Zejin Zhan Hui Deng Department of Mechanical and Energy Engineering Southern University of Science and TechnologyNo.1088Xueyuan RoadShenzhen 518055GuangdongChina

Isotropic etching polishing(IEP)based on the merging of isotropic etch pits has been proposed as a generic metal finishing approach.In this work,the tuning of the etching isotropy of various metals,which is the key to realizing the finishing effect of IEP,is studied by theoretical analysis and etching experiments.The isotropic etching of various metals can be realized through mass transfer polarization by adjusting the electrochemical parameters.The addition of sulfuric acid in the electrolyte is the most effective for tuning the isotropy of electrochemical etching.It can decrease the diffusion coefficient of metal ions,thereby increasing the resistance of mass transfer and transforming the electrochemical dissolution of metal into mass transfer polarization.In this study,the atomic and close-to-atomic scale surface finishing of various metals and alloys has been successfully achieved through isotropic etching.After etching at a current of 1.5 A for 3 min,the surface Sa roughness of TA2 is drastically reduced from 242 to 3.98 nm.After etching for 1 min at a current of 3 A,the surface Sa roughness of pure tungsten,NiTi,and CoCrNi decreases from 9.33,76.4,and 37.6 nm,respectively,to 1.16,2.01,and 2.51 nm,respectively.

关键词： ACSM Metal finishing Isotropic etching polishing Electrochemical polishing

大气压微波放电CO_(2)等离子体温度的发射光谱诊断

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光谱学与光谱分析 2024年第3期44卷 688-692页

作者：李容毅朱海龙山西大学物理电子工程学院山西太原030006

大气压微波等离子体因具有活性粒子密度高、气体温度高、能量转换效率高、可控性好等独特优势,在分解和转化二氧化碳治理环境领域展现出重要的应用价值。以大气压微波等离子体的二氧化碳分解与转化为应用背景,开展了大气压微波等离子体... 详细信息

大气压微波等离子体因具有活性粒子密度高、气体温度高、能量转换效率高、可控性好等独特优势,在分解和转化二氧化碳治理环境领域展现出重要的应用价值。以大气压微波等离子体的二氧化碳分解与转化为应用背景,开展了大气压微波等离子体的放电特性与温度参数的测量和诊断研究。通过研究等离子体炬的放电形态的变化规律,分析了大气压二氧化碳等离子体的放电特点;利用发射光谱的诊断方法,分析了二氧化碳放电区内产生的C_(2)分子的转动温度,得到了二氧化碳等离子体内不同位置在不同功率和不同气体流量下的放电形态以及温度的变化规律。研究结果表明,这种大气压微波等离子体的放电形态呈现明亮的中心放电区和外围的余辉区,且这两个区域存在清晰的边界;放电区的长度随微波功率增加接近线性增长,受送气流量大小的影响微弱。等离子体发射光谱诊断结果显示,大气压微波等离子体放电过程中,主放电区中除了化学荧光连续谱外还存在很强的C_(2)分子的Swan谱带;基于这一谱带计算得到的主放电区等离子体温度约为6 000 K,且这一温度几乎不随功率和气流的变化;不同中心放电区位置,温度略有变化(±100 K)。

关键词：大气压微波放电等离子体转动温度二氧化碳

Light promotes jasmonate biosynthesis to regulate photomorphogenesis in Arabidopsis

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Science China(Life Sciences) 2020年第7期63卷 943-952页

作者： rong yi Jianbin Yan Daoxin Xie College of Life Sciences Peking UniversityBeijing 100871China MOE Key Laboratory of Bioinformatics Tsinghua-Peking Joint Center for Life SciencesSchool of Life SciencesTsinghua UniversityBeijing 100084China Lingnan Guangdong Laboratory of Modern Agriculture Genome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518124China

Light acts as the pivotal external environment cue to modulate plant growth and development. Seeds germinate in the soil without light to undergo skotomorphogenesis with rapidly elongating hypocotyls that facilitate emergence from the soil, while seedlings upon light exposure undergo photomorphogenesis with significantly inhibited hypocotyl elongation that benefits plants to stand up firmly and cope with the changing environment. In this study, we demonstrate that light promotes jasmonate(JA)biosynthesis to inhibit hypocotyl elongation and orchestrate seedling photomorphogenesis in Arabidopsis. We showed that JAinhibition on hypocotyl elongation is dependent on JA receptor COI1 and signaling components such as repressor proteins JAZs and transcription activators MYC2/MYC3/MYC4. Furthermore, we found that MYC2/MYC3/MYC4 activate the expression of photomorphogenesis regulator HY5 to repress cell elongation-related genes(such as SAUR62 and EXP2) essential for seedling photomorphogenesis. Our findings provide a novel insight into molecular mechanisms underlying how plants integrate light signal with hormone pathway to establish seedling photomorphogenesis.

关键词： photomorphogenesis jasmonate COI1 MYC2 HY5 hypocotyl elongation

刺激响应型光声纳米探针的构建及其生物医学应用研究

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分析测试学报 2024年第1期43卷 166-173页

作者：袁茜李一荣武汉大学中南医院检验科湖北武汉430071

光声成像技术是一种集光学成像与声学成像技术优势为一体的无创成像手段。这种成像手段具有高的空间分辨率及深层组织穿透性能,在生物医学研究及临床应用领域中展现出巨大的应用潜力。近年来,为提高光声成像的实时诊断能力,研究者们开... 详细信息

光声成像技术是一种集光学成像与声学成像技术优势为一体的无创成像手段。这种成像手段具有高的空间分辨率及深层组织穿透性能,在生物医学研究及临床应用领域中展现出巨大的应用潜力。近年来,为提高光声成像的实时诊断能力,研究者们开发了一系列刺激响应型光声成像探针,用于体内特定生物学事件的动态可视化示踪。该综述从刺激响应型光声探针的设计策略出发,并以内源性刺激源(如pH、酶、自由基等)及外源性刺激源(如光、温度、超声等)为分类,重点介绍当前光声成像在体内的研究进展。同时,对激活型光声成像技术的未来发展趋势进行展望,为光声成像探针的开发提供了参考。

关键词：光声成像纳米探针刺激响应型生物医学

从“版”到“窗”:数字出版阅读界面形象嬗变的符号学分析

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编辑之友 2024年第6期 23-30页

作者：胡易容周野四川大学文学与新闻学院四川成都610000 四川大学出版学院四川成都610000

印刷术的发明与普及使“版”成为出版物标准界面,历史前行、技术更迭,“窗”成为数字出版物的新界面。出版界面形象从“版”到“窗”,既展现了出版载体物显示端的变革,也关涉出版观念的变迁。相比传统界面“版”,“窗”产生了符形的变化... 详细信息

印刷术的发明与普及使“版”成为出版物标准界面,历史前行、技术更迭,“窗”成为数字出版物的新界面。出版界面形象从“版”到“窗”,既展现了出版载体物显示端的变革,也关涉出版观念的变迁。相比传统界面“版”,“窗”产生了符形的变化,它可以被理解为一种虚位以待但呈现动势的空符号,是透明媒介环境与非透明信息系统,符号与媒介的关系仅为瞬时征用的弱依存关系。在符用层面,窗口界面语言呈现出图符语境化的趋势,人与屏幕的符号互动,身体与媒介双重延伸,并通达经验与文本两个世界,实现意义调度。

关键词：融合出版数字界面符号学媒介环境

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氧化应激在注意缺陷多动障碍发病机制中的研究进展

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中国当代儿科杂志 2024年第2期26卷 201-206页

作者：吴晨蕾王孟飞(综述) 周荣易(审校) 河南中医药大学第一附属医院儿科医院河南郑州450000 河南中医药大学儿科医学院河南郑州450000

注意缺陷多动障碍(attention deficit hyperactivity disorder,ADHD)是儿童和青少年常见的神经发育障碍性疾病,病因及发病机制尚不明确。脑是人体耗氧量最大的器官,极易受到氧化失衡的影响,因此氧化应激成为ADHD发病机制的重点研究方向... 详细信息

注意缺陷多动障碍(attention deficit hyperactivity disorder,ADHD)是儿童和青少年常见的神经发育障碍性疾病,病因及发病机制尚不明确。脑是人体耗氧量最大的器官,极易受到氧化失衡的影响,因此氧化应激成为ADHD发病机制的重点研究方向,但目前国内尚缺乏相关研究。该文综述氧化应激参与ADHD的临床研究及实验研究最新成果,并探索ADHD发病机制研究中氧化应激与神经递质失调、神经炎症及细胞凋亡等假说之间的内在关联,为探索ADHD的发病机制提供新的研究思路。

关键词：注意缺陷多动障碍氧化应激神经递质神经炎症细胞凋亡

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论标语和口号的媒介特性与符号表意

西北师大学报（社会科学版） 2024年第2期61卷 39-48页

作者：胡易容第五淳四川大学文学与新闻学院四川成都610207

在一般符号学和媒介理论的透视下,标语和口号不仅仅是语言符号,亦不能被笼统地看成语言媒介的内容。它们本身即是不同类型的媒介形式,具有各自的媒介特性和意指机制。口号调动“副语言”和非语言符号的参与,生产听觉主导意义共享的仪式... 详细信息

在一般符号学和媒介理论的透视下,标语和口号不仅仅是语言符号,亦不能被笼统地看成语言媒介的内容。它们本身即是不同类型的媒介形式,具有各自的媒介特性和意指机制。口号调动“副语言”和非语言符号的参与,生产听觉主导意义共享的仪式化空间;而“实物性”则是标语区别于书面和印刷品等一般文字媒介的根本特性。“以物为媒”的文字传播形式决定了标语的文本结构内涵着“语言”和“图像”两个符号表意维度。经过广泛实践和丰富积累,标语在当代中国的传播格局中具有了“中介机构”或“中间物”、技术和物质形式、传媒和文化体制三个层面的媒介意涵。

关键词：标语口号符号媒介文字语图关系