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Study on metal recovery process and kinetics of oxidative leaching from spent LiFePO_(4)Li-batteries

Chinese Journal of Chemical Engineering 2024年第4期68卷 94-102页

作者： xiaoming zhang Wen Xie Xiaolei Zhou Wenjie zhang Jiawei Wen Xin Wang Guoyong Huang Shengming Xu College of New Energy and Materials China University of PetroleumBeijing 102249China State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of PetroleumBeijing 102249China Beijing Spacecrafts Beijing 100094China Ganfeng Lithium Group Co. Ltd.Xinyu 338000China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China Beijing Key Laboratory of Fine Ceramics Tsinghua UniversityBeijing 100084China

A green environmental protection and enhanced leaching process was proposed to recover all elements from spent lithium iron phosphate(LiFePO_(4)) lithium *** order to reduce the influence of Al impurity in the recovery process,NaOH was used to remove *** impurity removal,the spent LiFePO_(4) cathode material was used as raw material under the H_(2)SO_(4) system,and the pressure oxidation leaching process was adopted to achieve the preferential leaching of *** E-pH diagram of the Fe-P-Al-H_(2)O system can determine the stable region of each element in the recovery process of spent LiFePO_(4)*** the optimal conditions(500 r·min^(-1),15 h,363.15 K,0.4 MPa,the liquid-solid ratio was 4:1 ml·g^(-1)and the acid-material ratio was 0.29),the leaching rate of Li was 99.24%,Fe,Al,and Ti were 0.10%,2.07%,and 0.03%,*** Fe and P were precipitated and recovered as FePO_(4)·2H_(2)*** kinetic analysis shows that the process of high-pressure acid leaching of spent LiFePO_(4) materials depends on the surface chemical *** the life cycle assessment(LCA)of the spent LiFePO_(4) whole recovery process,eight midpoint impact categories were selected to assess the impact of recovery *** results can provide basic environmental information on production process for recycling industry.

关键词： Spent LiFePO_(4)Li-batteries Oxidative leaching Kinetic study Life cycle assessment

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Dynamic risk assessment of gas pipeline operation process by fusing visual and olfactory monitoring

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Journal of Safety Science and Resilience 2024年第2期5卷 156-166页

作者： Denglong Ma Weigao Mao Guangsen zhang Chaoyi Liu Yi Han xiaoming zhang Hansheng Wang Kang Cen Wan Lu Denghui Li Hanyue zhang School of Mechanical Engineering Xi'an Jiaotong UniversityXi'an 710049China Hanzhong Natural Gas Investinent Development Co.Ltd Hanzhong723011China Shaanxi Special Equipment Inspection and Testing Institute Xi'an710038China School of Civil Engineering and Architecture Southwest Petroleum UniversityChengdu610500China Sichuan Tianxin Gas Co.Ltd. Mianyang62100China Petro China Southwest Oil and Gas Field Company Gas Branch Chengdu610500China

With the rapid increase in urban gas consumption,the frequency of maintenance and repair of gas pipelines has escalated,leading to a rise in safety accidents during these *** traditional manual supervision model presents challenges such as inaccurate monitoring results,incomplete risk factor analysis,and a lack of quantitative risk *** research focuses on developing a dynamic risk assessment technology for gas emergency repair operations by integrating the monitoring outcomes of artificial olfactory for gas leakage information and video object recognition for visual safety factor monitoring *** quantitatively evaluate the risk of the operation process,a three-dimensional risk assessment model combining gas leakage with riskcorrelated sensitivity was established as well as a separate three-dimensional risk assessment model integrating visual risk factors with predictable risk ***,a visual risk quantification expression mode based on the risk matrix-radar map method was ***,a risk quantification model based on the fusion of visual and olfactory results was *** verification results of simulation scenarios based on field data indicate that the visual-olfactory fusion risk assessment method can more accurately reflect the dynamic risk level of the operation process compared to simple visual safety factor *** outcomes of this research can contribute to the identification of safety status and early warning of risks related to personnel,equipment,and environmental factors in emergency repair ***,these results can be extended to other operational scenarios,such as oil and gas production stations and long-distance pipeline operations.

关键词： Gas pipelinemaintenance Dynamicriskassessment Visual-olfactoryfusion Risk matrix Risk quantification model

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Plant virology in the 21st century in China:Recent advances and future directions

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Journal of Integrative Plant Biology 2024年第3期66卷 579-622页

作者： Jianguo Wu Yongliang zhang Fangfang Li xiaoming zhang Jian Ye Taiyun Wei Zhenghe Li Xiaorong Tao Feng Cui Xianbing Wang Lili zhang Fei Yan Shifang Li Yule Liu Dawei Li Xueping Zhou Yi Li State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Vector-borne Virus Research CenterCollege of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Plant Environmental Resilience and Ministry of Agriculture Key Laboratory of Soil Microbiology College of Biological SciencesChina Agricultural UniversityBeijing 100193China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Plant Genomics Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Rice Biology Institute of BiotechnologyZhejiang UniversityHangzhou 310058China Department of Plant Pathology The Key Laboratory of Plant ImmunityNanjing Agricultural UniversityNanjing 210095China State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Institute of Plant VirologyNingbo UniversityNingbo 315211China MOE Key Laboratory of Bioinformatics Center for Plant BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China State Key Laboratory of Protein and Plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China

Plant viruses are a group of intracellular pathogens that persistently threaten global food *** advances in plant virology have been achieved by Chinese scientists over the last 20 years,including basic research and technologies for preventing and controlling plant viral ***,we review these milestones and advances,including the identification of new crop-infecting viruses,dissection of pathogenic mechanisms of multiple viruses,examination of multilayered interactions among viruses,their host plants,and virus-transmitting arthropod vectors,and in-depth interrogation of plantencoded resistance and susceptibility ***,various plant virus-based vectors have also been successfully developed for gene function studies and target gene expression in *** also recommend future plant virology studies in China.

关键词： China emerging plant viruses plant virology plant resistance/susceptibility to viral infection plant-virus transmission vector interactions plant virus-based vectors viral pathogenesis

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The MADS-box transcription factor GmFULc promotes GmZTL4 gene transcription to modulate maturity in soybean

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Journal of Integrative Plant Biology 2024年第8期66卷 1603-1619页

作者： Jingzhe Sun Yucheng Liu Yuhong Zheng Yongguo Xue Yuhuan Fan Xiaofei Ma Yujia Ji Gaoyuan Liu xiaoming zhang Yang Li Shuming Wang Zhixi Tian Lin Zhao Key Laboratory of Soybean Biology of Ministry of Education China Northeast Agricultural UniversityHarbin 150030China Qingdao Institute of Bioenergy and Bioprocess Technology The Chinese Academy of SciencesQingdao 266101China State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignThe Chinese Academy of SciencesBeijing 100101China Jilin Academy of Agricultural Sciences China Agricultural Science and Technology Northeast Innovation CenterChangchun 130033China Institute of Soybean Research Heilongjiang Provincial Academy of Agricultural SciencesHarbin 150086China Depatment of Environmental and Plant Biology Ohio UniversityAthensOhio 45701USA

Flowering time and maturity are crucial agronomic traits that affect the regional adaptability of soybean *** development of soybean cultivars with early maturity adapted to longer days and colder climates of high latitudes is very important for ensuring normal ripening before frost *** belongs to the MADS-box transcription factor family and has several duplicated members in *** this study,we observed that overexpression of GmFULc in the Dongnong 50 cultivar promoted soybean maturity,while GmFULc knockout mutants exhibited late *** immunoprecipitation sequencing(ChIP-seq)and RNA sequencing(RNA-seq)revealed that GmFULc could bind to the CArG,bHLH and homeobox *** investigation revealed that GmFULc could directly bind to the CArG motif in the promoters of the GmZTL3 and GmZTL4 *** of GmZTL4 promoted soybean maturity,whereas the ztl4 mutants exhibited delayed ***,we found that the cis element box 4 motif of the GmZTL4 promoter,a motif of light response elements,played an important role in controlling the growth *** of this motif shortened the growth period by increasing the expression levels of *** investigations revealed that short-day treatment promoted the binding of GmFULc to the promoter of GmZTL4 and inhibited the expression of E1 and E1Lb,ultimately resulting in the promotion of flowering and early *** together,these findings suggest a novel photoperiod regulatory pathway in which GmFULc directly activates GmZTL4 to promote earlier maturity in soybean.

关键词： flowering time GmFULc GmZTL4 maturity photoperiod

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中国对外关系史研究的“跨界”路径

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中共党史研究 2024年第3期 50-54页

作者：张小明北京大学国际关系学院

虽然此次笔谈讨论的主题是当代“中国外交史”,但我个人更喜欢用“中国对外关系史”这个概念,因为后者的内涵要比前者丰富得多。不管是中国对外关系史,还是中国外交史,都是很大的研究课题。在本文中,我将主要就中国对外关系史研究中的... 详细信息

虽然此次笔谈讨论的主题是当代“中国外交史”,但我个人更喜欢用“中国对外关系史”这个概念,因为后者的内涵要比前者丰富得多。不管是中国对外关系史,还是中国外交史,都是很大的研究课题。在本文中,我将主要就中国对外关系史研究中的跨学科或者叫“跨界”问题,谈一些自己多年来一直在琢磨、实践但又不太成熟的想法。其实,我应邀参加这次笔谈本身就是一种“跨界”行为。过去40多年里,我一直在高校学习、研究和讲授国际关系的历史和理论,并把自己定位为一名国际关系学者。虽然始终对中国对外关系史感兴趣,也发表过相关著作和论文,但我并不是专门研究中国对外关系史的学者,更没有想过在《中共党史研究》上发表文章,尽管《中共党史研究》一直是我喜欢阅读的学术刊物。

关键词：学术刊物高校学习国际关系学者跨界喜欢阅读跨学科《中共党史研究》研究课题

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环境风险感知触发社会风险的逻辑机理与治理之道

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南京社会科学 2024年第8期 52-62,75页

作者：张小明张欣中共中央党校(国家行政学院)应急管理研究院(中欧应急管理学院) 北京100091 中共江西省委党校江西应急管理研究中心南昌330108

近年来,国内环境信访事件和环境群体性事件易发多发。这些缘起于环境领域的风险缘何会演化成社会风险?本文聚焦两项关键要素:环境风险感知与抗争意愿,试图以此来解释公众环境风险感知触发社会风险的逻辑机理与治理之道。基于数据分析结... 详细信息

近年来,国内环境信访事件和环境群体性事件易发多发。这些缘起于环境领域的风险缘何会演化成社会风险?本文聚焦两项关键要素:环境风险感知与抗争意愿,试图以此来解释公众环境风险感知触发社会风险的逻辑机理与治理之道。基于数据分析结果,研究发现,环境风险感知显著正向影响公众抗争意愿,政府信任在二者间发挥中介作用,政府回应、信息公开削弱并调节环境风险感知与政府信任的关系,环境治理的调节作用不显著。这说明,公众的环境风险感知降低了政府受信任水平,继而激发并放大了抗争意愿,由此助长了社会风险的萌生。而政府回应与信息公开水平的提升能够弱化环境风险感知对政府信任的负向影响,继而间接降低公众抗争意愿,由此在一定程度上阻断环境风险向社会风险的转换。

关键词：环境风险感知抗争意愿社会风险政府信任政府回应信息公开

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Brain Functional Network Changes in Patients with Poststroke Cognitive Impairment Following Acupuncture Therapy

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Health 2024年第9期16卷 856-871页

作者： Ran Wang Nian Liu Hao Xu Peng zhang Xiaohua Huang Lin Yang xiaoming zhang Science and Technology Innovation Center Interventional Medical Center Department of Radiology Affiliated Hospital of North Sichuan Medical College Nanchong China Department of Radiology Sichuan Province Orthopedic Hospital Chengdu China

Background: The mechanisms by which acupuncture affects poststroke cognitive impairment (PSCI) remain unclear. Objective: To investigate brain functional network (BFN) changes in patients with PSCI after acupuncture therapy. Methods: Twenty-two PSCI patients who underwent acupuncture therapy in our hospital were enrolled as research subjects. Another 14 people matched for age, sex, and education level were included in the normal control (HC) group. All the subjects underwent resting-state functional magnetic resonance imaging (rs-fMRI) scans;the PSCI patients underwent one scan before acupuncture therapy and another after. The network metric difference between PSCI patients and HCs was analyzed via the independent-sample t test, whereas the paired-sample t test was employed to analyze the network metric changes in PSCI patients before vs. after treatment. Results: Small-world network attributes were observed in both groups for sparsities between 0.1 and 0.28. Compared with the HC group, the PSCI group presented significantly lower values for the global topological properties (γ, Cp, and Eloc) of the brain;significantly greater values for the nodal attributes of betweenness centrality in the CUN. L and the HES. R, degree centrality in the SFGdor. L, PCG. L, IPL. L, and HES. R, and nodal local efficiency in the ORBsup. R, ORBsupmed. R, DCG. L, SMG. R, and TPOsup. L;and decreased degree centrality in the MFG. R, IFGoperc. R, and SOG. R. After treatment, PSCI patients presented increased degree centrality in the LING.L, LING.R, and IOG. L and nodal local efficiency in PHG. L, IOG. R, FFG. L, and the HES. L, and decreased betweenness centrality in the PCG. L and CUN. L, degree centrality in the ORBsupmed. R, and nodal local efficiency in ANG. R. Conclusion: Cognitive decline in PSCI patients may be related to BFN disorders;acupuncture therapy may modulate the topological properties of the BFNs of PSCI patients.

关键词： Cognitive Decline Poststroke Cognitive Impairment Functional Magnetic Resonance Imaging Brain Functional Network Graph Theoretical Analysis

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Crop antiviral defense: Past and future perspective

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Science China Life Sciences 2024年

作者： Zhirui Yang Guangyao Li Yongliang zhang Fangfang Li Tao Zhou Jian Ye Xianbing Wang xiaoming zhang Zongtao Sun Xiaorong Tao Ming Wu Jianguo Wu Yi Li The State Key Laboratory of Protein and Plant Gene Research School of Life Sciences Peking University State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design Breeding College of Biological Sciences China Agricultural University State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Vector-borne Virus Research Center College of Plant Protection Fujian Agriculture and Forestry University State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Agro-Biotechnology and Department of Plant Pathology China Agricultural University State Key Laboratory of Plant Genomics Institute of Microbiology Chinese Academy of Sciences State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of SciencesCAS Center for Excellence in Biotic Interactions University of Chinese Academy of Sciences State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province Institute of Plant Virology Ningbo University Department of Plant Pathology The Key Laboratory of Plant Immunity Nanjing Agricultural University

Viral pathogens not only threaten the health and life of humans and animals but also cause enormous crop yield losses and contribute to global food insecurity. To defend against viral pathogens, plants have evolved an intricate immune system to perceive and cope with such attacks. Although most of the fundamental studies were carried out in model plants, more recent research in crops has provided new insights into the antiviral strategies employed by crop plants. We summarize recent advances in understanding the biological roles of cellular receptors, RNA silencing, RNA decay, hormone signaling, autophagy, and ubiquitination in manipulating crop host-mediated antiviral responses. The potential functions of circular RNAs, the rhizosphere microbiome, and the foliar microbiome of crops in plant-virus interactions will be fascinating research directions in the future. These findings will be beneficial for the development of modern crop improvement strategies.

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铁路全钢结构框架墩设计与施工关键技术

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世界桥梁 2024年第1期52卷 39-44页

作者：张晓明皖赣铁路安徽有限责任公司安徽合肥230001

针对传统钢横梁-混凝土立柱框架墩邻近营业线时,混凝土立柱施工周期长、钢横梁吊装难度大的问题,提出钢横梁-钢立柱全钢结构框架墩方案。以宣绩高铁跨越既有皖赣铁路工程为背景,对全钢结构框架墩进行设计及应用研究。全钢结构框架墩立... 详细信息

针对传统钢横梁-混凝土立柱框架墩邻近营业线时,混凝土立柱施工周期长、钢横梁吊装难度大的问题,提出钢横梁-钢立柱全钢结构框架墩方案。以宣绩高铁跨越既有皖赣铁路工程为背景,对全钢结构框架墩进行设计及应用研究。全钢结构框架墩立柱与横梁均为钢结构,提升了结构整体性;采用轻量化设计降低吊装难度和工程投资;通过柱底混合连接构造连接框架墩钢立柱和混凝土基础,提高了安装精度和连接可靠性。对结构稳定、局部承压、疲劳强度、刚度变形等各项指标进行验算,结果表明均满足规范要求。全钢结构框架墩采用旁位拼装、整体吊装、柱底对位连接的施工方案,施工阶段采用吊装变形控制和对位引导等施工关键技术,有效提高了施工工效和安装精度。对比传统钢横梁混凝土立柱框架墩,全钢结构框架墩工程投资相当,但减小了对既有铁路运营的干扰,施工难度和施工风险均大幅降低。

关键词：跨线桥全钢结构框架墩钢横梁-钢立柱轻量化设计混合连接柱底对位安装整体吊装营业线施工

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基于总线故障注入的卫星热控自主管理软件测试方案

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航天器工程 2024年第3期33卷 135-140页

作者：刘鹤张晓明张月中国空间技术研究院通信与导航卫星总体部北京100094

针对卫星热控分系统设计的新状态,梳理了热控自主管理软件中多点控温功能、跟踪控温功能及热敏电阻故障处理功能的测试需求,提出了基于总线故障注入的热控自主管理软件测试方案。该方案通过将故障注入设备接入卫星数据总线的方式仿真总... 详细信息

针对卫星热控分系统设计的新状态,梳理了热控自主管理软件中多点控温功能、跟踪控温功能及热敏电阻故障处理功能的测试需求,提出了基于总线故障注入的热控自主管理软件测试方案。该方案通过将故障注入设备接入卫星数据总线的方式仿真总线遥测,验证热控自主管理软件处理结果的正确性。与现有基于热敏电阻等效器的测试方案相比,该方案能够在保证测试有效性的同时简化所需地面测试设备及电缆,提升工作效率。文章给出了测试方案步骤,可为卫星自主管理软件测试提供参考。

关键词：卫星地面测试热控自主管理软件故障注入

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