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A lithium sulfonylimide COF-modified separator for highperformance Li-S batteries

Nano Research 2023年第11期16卷 12601-12607页

作者： Jie Liu Jinping Zhang Jie zhu ruiqi Zhao Yamin Zhang Yanfeng Ma Chenxi Li Hongtao Zhang Yongsheng Chen The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin 300071China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China Renewable Energy Conversion and Storage Center(RECAST) Nankai UniversityTianjin 300071China State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China

Lithium-sulfur(Li-S)batteries are highly regarded as the next-generation high-energy-density secondary batteries due to their high capacity and large theoretical energy ***,the practical application of these batteries is hindered mainly by the polysulfide shuttle ***,we designed and synthesized a new lithium sulfonylimide covalent organic framework(COF)material(COF-LiSTFSI,LiSTFSI=lithium(4-styrenesulfonyl)(trifluoromethanesulfonyl)imide),and further used it to modify the common polypropylene(PP)separator of Li-S *** COF-LiSTFSI with sulfonylimide anion groups features stronger electronegativity,thus can effectively facilitate the lithium ion conduction while significantly suppress the diffusion of polysulfides via the electrostatic *** with the unmodified PP separator,the COF-LiSTFSI modified separator results in a high ionic conductivity(1.50 mS·cm^(−1))and Li+transference number(0.68).Consequently,the Li-S battery using the COF-LiSTFSI modified separator achieves a high capacity of 1229.7 mAh·g^(−1)at 0.2 C and a low decay rate of only 0.042%per cycle after 1000 cycles at 1 C,compared with those of 941.5 mAh·g^(−1)and 0.061%using the unmodified PP separator,*** results indicate that by choosing suitable functional groups,an effective strategy for COF-modified separators could be developed for high-performance Li-S batteries.

关键词： covalent organic frameworks lithium sulfonylimide ion selective modified separator lithium-sulfur batteries

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The C/EBPβ-Dependent Induction of TFDP2 Facilitates Porcine Reproductive and Respiratory Syndrome Virus Proliferation

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Virologica Sinica 2021年第6期36卷 1341-1351页

作者： Min zhu Xiaoyang Li ruiqi Sun Peidian Shi Aiping Cao Lilin Zhang Yanyu Guo Jinhai Huang School of Life Sciences Tianjin UniversityTianjin 300072China Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures Tianjin UniversityTianjin 300072China

Porcine reproductive and respiratory syndrome(PRRS) is an important infectious disease caused by porcine reproductive and respiratory syndrome virus(PRRSV), leading to significant economic losses in swine industry worldwide. Although several studies have shown that PRRSV can affect the cell cycle of infected cells, it is still unclear how it manipulates the cell cycle to facilitate its proliferation. In this study, we analyzed the mRNA expression profiles of transcription factors in PRRSV-infected 3D4/21 cells by RNA-sequencing. The result shows that the expression of transcription factor DP2(TFDP2) is remarkably upregulated in PRRSV-infected cells. Further studies show that TFDP2 contributes to PRRSV proliferation and the PRRSV nucleocapsid(N) protein induces TFDP2 expression by activating C/EBPb. TFDP2 positively regulates cyclin A expression and triggers a less proportion of cells in the S phase, which contributes to PRRSV proliferation. This study proposes a novel mechanism by which PRRSV utilizes host protein to regulate the cell cycle to favor its infection. Findings from this study will help us for a better understanding of PRRSV pathogenesis.

关键词： Porcine reproductive and respiratory syndrome virus(PRRSV) Transcription factor DP2(TFDP2) Cell cycle Cyclin A

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固相反应合成MgAl_(2)O_(4)多孔纤维的研究

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耐火材料 2024年第3期58卷 190-194页

作者：王昕悦许晴朱欣欣周瑞琪段红娟张海军李少平武汉科技大学省部共建耐火材料与冶金国家重点实验室湖北武汉430081

MgAl_(2)O_(4)纤维的主要制备方法为气相法,但该方法存在反应温度高、制备成本高以及产率低等问题。将碱式硫酸镁晶须作为模板,分别与铝溶胶或α-Al_(2)O_(3)微粉混合,通过固相反应制备了MgAl_(2)O_(4)多孔纤维,研究了热处理温度(1000、... 详细信息

MgAl_(2)O_(4)纤维的主要制备方法为气相法,但该方法存在反应温度高、制备成本高以及产率低等问题。将碱式硫酸镁晶须作为模板,分别与铝溶胶或α-Al_(2)O_(3)微粉混合,通过固相反应制备了MgAl_(2)O_(4)多孔纤维,研究了热处理温度(1000、1100和1300℃)和保温时间(3、10 h)以及铝源(铝溶胶和α-Al_(2)O_(3)微粉)对MgAl_(2)O_(4)多孔纤维合成的影响。结果表明:1)与α-Al_(2)O_(3)微粉相比,以铝溶胶为铝源时,纤维中MgAl_(2)O_(4)生成量更高;2)随着热处理温度的升高,Al_(2)O_(3)与MgO逐渐反应完全,MgAl_(2)O_(4)的生成量不断增加,MgAl_(2)O_(4)多孔纤维上有小而均匀的纳米孔;3)最佳制备工艺是以铝溶胶为铝源,在1300℃保温3 h。

关键词：碱式硫酸镁晶须铝溶胶 MgAl_(2)O_(4) 多孔纤维固相反应法

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Hydroxyapatite nanoparticles drive the potency of Toll-like receptor 9 agonist for amplified innate and adaptive immune response

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Nano Research 2022年第10期15卷 9286-9297页

作者： Qin Zeng ruiqi Wang Yuchen Hua Hongfeng Wu Xuening Chen You-cai Xiao Qiang Ao Xiangdong zhu Xingdong Zhang National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610064China NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterials&Institute of Regulatory Science for Medical Devices&NMPA Research Base of Regulatory Science for Medical Devices Sichuan UniversityChengdu 610064China College of Biomedical Engineering Sichuan UniversityChengdu 610064China Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province Sichuan UniversityChengdu 610041China

The potency of Toll-like receptor 9(TLR9)agonist to drive innate immune response was limited due to immune suppression or tolerance during TLR9 signaling activation in immune *** we addressed this problem by introducing hydroxyapatite nanoparticles(HANPs)to CpG ODN(CpG),a TLR9 *** study revealed that HANPs concentration and durationdependently reprogramed the immune response by enhancing the secretion of immunostimulatory cytokines(tumor necrosis factorα(TNFα)or IL-6)while reducing the production of immunosuppressive cytokine(IL-10)in macrophages in response to ***,the enhanced immune response benefited from increased intracellular Ca2+in macrophage by the addition of ***,we found exposure to HANPs impacted the mitochondrial function of macrophages in support of the synthesis of adenosine triphosphate(ATP),the production of nicotinamide adenine dinucleotide(NAD),and reactive oxygen species(ROS)in the presence or absence of *** vaccinated mice model,only one vaccination with a mixture of CpG,HANPs,and OVA,a model antigen,allowed the development of a long-lasting balanced humoral immunity in mice without any histopathological change in the local injection ***,this study revealed that HANPs could modulate the intracellular calcium level,mitochondrial function,and immune response in immune cells,and suggested a potential combination adjuvant of HANPs and TLR9 agonist for vaccine development.

关键词： hydroxyapatite nanoparticles Toll-like receptor 9 intracellular calcium mitochondrial function adaptive immune response

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含镍废水蒸发器结垢的解决方法

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印制电路信息 2024年第1期32卷 47-51页

作者：纪瑞琦宁武珍张浩沈亚鹏朱小明珠海杰赛科技有限公司广东珠海519170

介绍了含镍废水蒸发器的工作原理,并结合对蒸发器和含镍废水的综合性分析,得出蒸发器结垢的主要原因及其结垢机理。在此基础上,通过一系列实验研究确定了一套稳定、可靠的含镍废水蒸发器结垢解决方法。该方法可在印制电路板(PCB)行业中... 详细信息

介绍了含镍废水蒸发器的工作原理,并结合对蒸发器和含镍废水的综合性分析,得出蒸发器结垢的主要原因及其结垢机理。在此基础上,通过一系列实验研究确定了一套稳定、可靠的含镍废水蒸发器结垢解决方法。该方法可在印制电路板(PCB)行业中应用,解决了含镍废水处置中的技术难题。

关键词：含镍废水结垢蒸发器结垢机理

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Occurrence,leaching behavior,and detoxification of heavy metal Cr in coal gasification slag

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Chinese Journal of Chemical Engineering 2023年第6期58卷 11-19页

作者： Jiangshan Qu Jianbo Zhang Huiquan Li Shaopeng Li Da Shi ruiqi Chang Wenfen Wu Ganyu zhu Chennian Yang Chenye Wang CAS Key Laboratory of Green Process and Engineering National Engineering Research Center of Green Recycling for Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100090China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China School of Resources and Civil Engineering Northeastern UniversityShenyang 110819China

Coal gasification slag(CGS)is a type of solid waste produced during coal gasification,in which heavy metals severely restrict its resource *** this work,the mineral occurrence and distribution of typical heavy metal Cr in CGS is *** leaching behavior of Cr under different conditions is studied in *** leaching-selective oxidation-coprecipitation method is proposed based on the characteristics of Cr in *** detoxification of Cr in CGS is realized,and the detoxification mechanism is *** show that Cr is highly enriched in *** speciation of Cr is mainly residual fraction(74.47%-86.12%),which is combined with amorphous ***^(3+)and Cr^(6+)account for 90.93%-94.82%and 5.18%-9.07%of total Cr,*** acid concentration and high liquid-solid ratio are beneficial to destroy the lattice structure of amorphous aluminosilicate,thus improving the leaching efficiency of Cr,which can reach 97.93%under the optimal *** leaching-selective oxidation-coprecipitation method can realize the detoxification of Cr in *** the optimal conditions,the removal rates of Fe^(3+)and Cr^(3+)in the leaching solution are 80.99%-84.79%and 70.58%-71.69%,respectively,while the loss rate of Al^(3+)is only 1.10%-3.35%.Detoxification slag exists in the form of Fe-Cr coprecipitation(Fe_(1-x)Cr_xOOH),which can be used for *** detoxification acid leaching solution can be used to prepare inorganic polymer composite coagulant poly-aluminum chloride(PAC).This study can provide theoretical and data guidance for detoxification of heavy metal Cr in CGS and achieve resource utilization of coal gasification solid waste.

关键词： Coal gasification slag Heavy metal Distributions Leaching Detoxification Precipitation

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基质金属蛋白酶7在炎症性肠病中的临床意义

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胃肠病学 2021年第6期26卷 337-341页

作者：庄培丽周璐朱瑞齐王丹丹张哲冯百岁郑州大学第二附属医院消化内科 450014

背景:基质金属蛋白酶7(MMP-7)是一种通过调节多种细胞外基质和非基质底物来参与伤口愈合、组织重塑等过程的蛋白水解酶,是炎症性肠病(IBD)炎症期间组织损伤的重要介质。目的:探讨MMP-7在IBD中的临床意义。方法:纳入2019年1月—2021年1... 详细信息

背景:基质金属蛋白酶7(MMP-7)是一种通过调节多种细胞外基质和非基质底物来参与伤口愈合、组织重塑等过程的蛋白水解酶,是炎症性肠病(IBD)炎症期间组织损伤的重要介质。目的:探讨MMP-7在IBD中的临床意义。方法:纳入2019年1月—2021年1月郑州大学第二附属医院收治的IBD患者结肠活检标本共38例,其中溃疡性结肠炎(UC)20例、克罗恩病(CD)18例,选取5例结肠癌患者癌旁组织作为对照。采用免疫组化染色检测结肠组织中MMP-7表达,并分析其与C反应蛋白(CRP)、白细胞(WBC)的相关性。结果:与对照组相比,活动期UC组和重度CD组MMP-7表达均明显上调(P0.05)。活动期IBD患者结肠组织MMP-7表达与CRP、WBC呈正相关(P<0.001)。结论:MMP-7表达与IBD的活动性和严重程度有一定相关性,与性别、年龄、有无抗TNF-α制剂治疗无关。MMP-7在一定程度上可反映肠道炎症程度,可能是IBD炎症活动的重要指标。

关键词：炎症性肠病结肠炎,溃疡性 Crohn病基质金属蛋白酶7

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聚糠萘合剂和乙矮合剂对小麦抗倒伏能力、产量与品质的影响

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作物杂志 2024年第2期 113-121页

作者：孙通杨玉双马瑞琦朱英杰常旭虹董志强赵广才中国农业科学院作物科学研究所北京100081

为研究聚糠萘合剂(PKN)和乙矮合剂(ECK)对小麦抗倒性、产量和籽粒品质的影响,于2017-2018年在中国农业科学院作物科学研究所试验中圃场开展田间试验,以4个小麦品种为材料,采用裂区试验设计,主区为小麦品种,副区为化控剂喷施次数,副副区... 详细信息

为研究聚糠萘合剂(PKN)和乙矮合剂(ECK)对小麦抗倒性、产量和籽粒品质的影响,于2017-2018年在中国农业科学院作物科学研究所试验中圃场开展田间试验,以4个小麦品种为材料,采用裂区试验设计,主区为小麦品种,副区为化控剂喷施次数,副副区为聚糠萘合剂、乙矮合剂和清水对照(CK)。设置小麦越冬前喷施1次(分别为PKN1、ECK1和CK1)、越冬前和起身期各喷施1次(分别为PKN2、ECK2和CK2)以及越冬前、起身期和齐穗期各喷施1次(分别为PKN3、ECK3和CK3)。结果表明,与对照相比,ECK2和ECK3处理显著缩短了基部节间,提高了倒4和倒5节间的茎粗和抗折力,增强了植株抗倒伏能力;PKN处理对小麦抗倒伏性能无显著影响。PKN处理下4个小麦品种的产量比对照增加1.00%~9.87%,其中PKN2和PKN3处理下单产分别显著增加5.51%和9.87%,PKN1、ECK1和ECK2处理均无显著差异,但ECK3处理比对照显著降低6.51%。相比对照,PKN处理提高了籽粒沉降值,增加了清蛋白含量,降低了醇溶蛋白含量,进而提高了谷醇比,其中PKN3处理最佳;ECK2和ECK3处理显著提高清蛋白和谷蛋白含量,显著降低醇溶蛋白含量,显著提高了谷醇比,除轮选103外,其他品种面团形成时间相比对照均显著增加。综上所述,ECK2处理显著提高了小麦抗倒伏性能,改善了籽粒营养品质,对产量无显著影响;PKN2和PKN3处理显著提高了小麦产量,改善了籽粒营养品质,但对抗倒伏能力无显著影响。

关键词：聚糠萘合剂乙矮合剂小麦产量抗倒伏品质

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A double-layer covered architecture with spinel phase induced by LiPP for Co-free Li-rich cathode with high-rate performance and long lifespan

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Nano Research 2023年第5期16卷 6805-6814页

作者： ruiqi Zhao Manman Wu Peixin Jiao Xueting Wang Jie zhu Yang Zhao Hongtao Zhang Kai Zhang Chenxi Li Yanfeng Ma Yongsheng Chen The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin 300071China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China Renewable Energy Conversion and Storage Center(RECAST) Nankai UniversityTianjin 300071China Department Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China Engineering Research Center of High-efficiency Energy Storage(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

Co-free Li-rich Mn-based layered oxides are promising candidates for next-generation lithium-ion batteries(LIBs)due to their high specific capacity,high voltage,low ***,their commercialization is hindered by limited cycle life and poor rate ***,an in-situ simple and low-cost strategy with a nanoscale double-layer architecture of lithium polyphosphate(LiPP)and spinel phase covered on top of the bulk layered phase,is developed for Li_(1.2)Mn_(0.6)Ni_(0.2)O_(2)(LMNO)using Li^(+)-conductor LiPP(denoted as LMNO@S-LiPP).With such a double-layer covered architecture,the half-cell of LMNO@S-LiPP delivers an extremely high capacity of 202.5 mAh·g^(−1)at 1 A·g^(−1)and retains 85.3%of the initial capacity after 300 cycles,so far,the best highrate electrochemical performance of all the previously reported *** energy density of the full-cell assembled with commercial graphite reaches 620.9 Wh·kg^(−1)(based on total weight of active materials in cathode and anode).Mechanism studies indicate that the superior electrochemical performance of LMNO@S-LiPP is originated from such a nanoscale double-layer covered architecture,which accelerates Li-ion diffusion,restrains oxygen release,inhibits interfacial side reactions,suppresses structural degradation during ***,this strategy is applicable for other high-energy-density cathodes,such as LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2),Li_(1.2)Ni_(0.13)Co_(0.13)Mn_(0.54)O_(2),LiCoO_(2).Hence,this work presents a simple,cost-effective,scalable strategy for the development of high-performance cathode materials.

关键词： Co-free Li-rich layered oxides double-layer covered architecture lithium polyphosphate high-rate performance long cycle life

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Time optimization for workflow scheduling based on the combination of task attributes

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Journal of Southeast University(English Edition) 2020年第4期36卷 399-406页

作者： Lu ruiqi zhu Chenyan Cai Hailin Zhou Jiawei Jiang Junqiang School of Information Science and Engineering Hunan Institute of Science and Technology Yueyang 414006 China College of Computer Science and Electronic Engineering Hunan University Changsha 410082 China

In order to reduce the scheduling makespan of a workflow,three list scheduling algorithms,namely,level and out-degree earliest-finish-time(LOEFT),level heterogeneous selection value(LHSV),and heterogeneous priority earliest-finish-time(HPEFT)are *** main idea hidden behind these algorithms is to adopt task depth,combined with task out-degree for the accurate analysis of task prioritization and precise processor allocation to achieve time *** algorithm is divided into three stages:task levelization,task prioritization,and processor *** task levelization,the workflow is divided into several independent task sets on the basis of task *** task prioritization,the heterogeneous priority ranking value(HPRV)of the task is calculated using task out-degree,and a non-increasing ranking queue is generated on the basis of *** processor allocation,the sorted tasks are assigned one by one to the processor to minimize makespan and complete the task-processor *** experiments through practical applications and stochastic workflows confirm that the three algorithms can effectively shorten the workflow makespan,and the LOEFT algorithm performs the best,and it can be concluded that task depth combined with out-degree is an effective means of reducing completion time.

关键词： directed acyclic graph workflow scheduling task depth task out-degree list heuristic

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