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Grapevine-like high entropy oxide composites boost high-performance lithium sulfur batteries as bifunctional interlayers

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Green Energy & Environment 2024年第3期9卷 565-572页

作者： huarong Fan Yubing Si Yiming Zhang Fulong Zhu Xin Wang Yongzhu Fu College of Chemistry and Center of Green Catalysis Zhengzhou UniversityZhengzhou450001China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu611731China

lithium-sulfur batteries(LSBs)with high energy densities have been demonstrated the potential for energy-intensive demand applications.However,their commercial applicability is hampered by hysteretic electrode reaction kinetics and the shuttle effect of lithium polysulfides(liPSs).In this work,an interlayer consisting of high-entropy metal oxide(Cu_(0.7)Fe_(0.6)Mn_(0.4)Ni_(0.6)Sn_(0.5))O_(4) grown on carbon nanofibers(HEO/CNFs)is designed for LSBs.The CNFs with highly porous networks provide transport pathways for li^(+) and e^(-),as well as a physical sieve effect to limit liPSs crossover.In particular,the grapevine-like HEO nanoparticles generate metal-sulfur bonds with liPSs,efficiently anchoring active materials.The unique structure and function of the interlayer enable the LSBs with superior electrochemical performance,i.e.,the high specific capacity of 1381 mAh g^(-1) at 0.1 C and 561 mAh g^(-1) at 6 C.This work presents a facile strategy for exploiting high-performance LSBs.

关键词： Electrospun carbon nanofibers Grapevine-like morphology Hierarchical physical sieve effect High-entropy induced chemisorption lithium-sulfur battery

Multiplex genome editing targeting soybean with ultra-low anti-nutritive oligosaccharides

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The Crop Journal 2023年第3期11卷 825-831页

作者： Wenxin lin Huaqin Kuang Mengyan Bai Xiaomeng Jiang Pengfei Zhou Yinghua li Bo Chen huarong li Yuefeng Guan College of Resources and Environment Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design Guangzhou Key Laboratory of Crop Gene EditingInnovative Center of Molecular Genetics and EvolutionSchool of Life SciencesGuangzhou UniversityGuangzhou 510006GuangdongChina FAFU-UCR Joint Center for Horticultural Biology and Metabolomics Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina College of life Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina Bioinformatics Department School of Life Sciences and TechnologyTongji UniversityShanghai 200092China KingAgroot CropScience Co. Ltd.Qingdao 266500ShandongChina

Soybean is the primary source of plant protein for humans.Owing to the indigestibility of the raffinose family of oligosaccharides(RFO),raffinose and stachyose are considered anti-nutritive factors in soybean seeds.Low-RFO soybean cultivars are generated by mutagenesis of RFO biosynthesis genes,but the carbohydrate profiles invite further modification to lower RFOs.This study employed a pooled multiplex genome editing approach to target four seed-specifically expressed genes mediating RFO biosynthesis,encoding three raffinose synthases(RS2,RS3,and RS4)and one stachyose synthase.In T1progeny,rs2/rs3 and rs4/sts homozygous double mutants and a rs2/rs3/rs4/sts quadruple mutant(rfo-4m)were characterized.The rs2/rs3 mutant showed reduced raffinose and stachyose contents,but the rs4/sts mutant showed only reduced stachyose in seeds.The RFO contents in the rfo-4m mutant were almost eliminated.Metabolomic analysis showed that the mutation of four RFO biosynthesis genes led to a shift of metabolic profile in the seeds,including the accumulation of several oligosaccharides-related metabolites.These mutants could contribute to precision breeding of soybean cultivars for soy food production.

关键词： Soybean Genome editing Raffinose family of oligosaccharides Raffinose Stachyose Precision breeding

A Comparative Study of Myocardial Damage Caused by Novel Coronavirus Infection and Influenza A Virus Infection in Children during the COVID-19 Epidemic Period

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Advances in Infectious Diseases 2024年第2期14卷 338-345页

作者： Chong liang Guosheng Su Chunhong Qiu lihua Qin Yongkang li Jide Huang Fangyue Pan Fengming Meng huarong Pan Chunjiao Nong Yulin Red Cross Hospital Yulin China Peoples Hospital of Guangxi-ASEAN Economic and Technological Development Zone (Nanning Tenth Peoples Hospital) Nanning China Yulin Second Peoples Hospital Yulin China Baise Maternal and Child Health Hospital Baise China

Objective: To explore the comparative study of myocardial damage in children infected with COVID-19 and influenza A virus during the COVID-19 pandemic. Method: Retrospective analysis of myocardial injury caused by COVID-19 infection and influenza A virus infection in children during the COVID-19 from October 2022 to May 2023, including 106 cases of COVID-19 infection, that is, the COVID-19 group;And 164 cases of influenza A virus infection, namely, H1N1 group;Two groups were tested for various indicators of myocardial enzyme spectrum, and the situation of myocardial injury was compared between the two groups. Result: In the enrolled cases, there was no statistically significant difference in the prevalence rate of men and women in the COVID-19 group (P > 0.05);There was no statistically significant difference in the average age between men and women (P > 0.05);The comparison of the incidence rates between males and females in the H1N1 group showed a statistically significant difference (P 0.05);There was no statistically significant difference in the average age between the two groups of girls (P > 0.05). A comparison between two groups of various indicators of myocardial enzyme spectra showed that the results of AST, -HBDH and LDH were statistically significant (P 0.05). Conclusion: Both COVID-19 infection and influenza A virus infection in children have different degrees of myocardial damage, but COVID-19 infection causes more myocardial damage than influenza A virus infection, and influenza A virus is more prone to myocardial infarction, which deserves our attention.

关键词： COVID-19 COVID-19 Infection Influenza A Myocardial Damage

500 t/d预燃炉系统在水泥厂的应用实践

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水泥工程 2024年第1期 20-22页

作者：李华容葛洲坝松滋水泥有限公司湖北松滋434200

为响应国家推进循环经济发展和节能减排的相关政策,我公司决定对现有水泥生产线进行节能降碳,采用500t/d空气脉动预燃炉技术将生活垃圾的水泥资源化系统改造升级,提高替代燃料使用量,进一步降低生产成本、减少碳排放,提高公司绿色发展... 详细信息

为响应国家推进循环经济发展和节能减排的相关政策,我公司决定对现有水泥生产线进行节能降碳,采用500t/d空气脉动预燃炉技术将生活垃圾的水泥资源化系统改造升级,提高替代燃料使用量,进一步降低生产成本、减少碳排放,提高公司绿色发展能力。实践证明,系统改造后在处理500t/d替代燃料的情况下,烧成系统的标煤耗可下降至83.73kg/t,且对水泥窑生产无其它不利影响,实现了经济效益和社会效益双丰收。

关键词：预燃炉生活垃圾替代燃料资源化

基于InSAR监测和PSO-SVR模型的高填方区沉降预测

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中国地质灾害与防治学报 2024年第2期35卷 127-136页

作者：李华蓉戴双璘郑嘉欣重庆交通大学智慧城市学院重庆400074 长江重庆航道局重庆401147 重庆工程职业技术学院重庆402260

基于小基线集干涉测量技术(small baseline subsets interferometric synthetic aperture radar,SBAS-InSAR)和机器学习知识对高填方区域进行地表沉降监测及预测,对工程项目的施工、检修、运营等工作都具有重要的指导意义。文章以重庆... 详细信息

基于小基线集干涉测量技术(small baseline subsets interferometric synthetic aperture radar,SBAS-InSAR)和机器学习知识对高填方区域进行地表沉降监测及预测,对工程项目的施工、检修、运营等工作都具有重要的指导意义。文章以重庆东港集装箱码头为研究对象,选取2018—2019年覆盖研究区的31景Sentinel-1A数据,利用SBAS-InSAR技术获取该区域的地表沉降数据,并进行内外精度评定;通过信息量模型分析地表沉降易发地地势特点,选择预测点位;通过灰色关联分析计算动态影响因素与沉降量之间的灰色关联度,使用主成分分析法从影响因素中提取出主成分,构建训练集和测试集,通过粒子群算法-支持向量机法(particle swarm optimization-support vector regression,PSO-SVR)预测模型对测试集数据进行预测。为验证该模型在高填方区域沉降预测的可靠性和优异性,将自回归差分整合移动平均模型(autoregressive integrated moving average model,ARIMA)作为对比模型,分别将PSO-SVR模型的预测结果和ARIMA模型的预测结果与测试集进行对比。结果表明:PSO-SVR模型的预测精度优于ARIMA模型,在高填方区域地表沉降预测中具有较好的实用性。

关键词：高填方区域粒子群算法支持向量机回归形变预测

铌酸钠基无铅陶瓷的弛豫反铁电相构筑与储能特性优化

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硅酸盐学报 2024年第4期52卷 1200-1210页

作者：杨伟伟曾华荣翟继卫赵坤宇李国荣中国科学院上海硅酸盐研究所上海201899 中国科学院大学材料科学与光电技术学院北京100049 同济大学材料科学与工程学院上海201804

开发具有优异综合储能特性的无铅陶瓷电容器是脉冲功率技术领域的迫切需求。相较于其他无铅储能陶瓷体系,Na Nb O_(3)(NN)陶瓷具有结构相变丰富、理论密度低、电学可调性强、轻量化发展潜力大等显著优点,因而备受关注,成为当前的研究热... 详细信息

开发具有优异综合储能特性的无铅陶瓷电容器是脉冲功率技术领域的迫切需求。相较于其他无铅储能陶瓷体系,Na Nb O_(3)(NN)陶瓷具有结构相变丰富、理论密度低、电学可调性强、轻量化发展潜力大等显著优点,因而备受关注,成为当前的研究热点。基于降低容忍因子稳定反铁电相和增强陶瓷弛豫性的策略,开展了NN基弛豫反铁电陶瓷的制备与储能特性研究。通过引入BiFeO_(3)和Sr(Ti_(0.85)Zr_(0.15))O_(3)成功制备了0.9[0.9NaNbO_(3)-0.1BiFeO_(3)]-0.1Sr(Ti_(0.85)Zr_(0.15))O_(3)陶瓷,相较于纯NN陶瓷(0.14 J/cm^(3)、6.39%)和0.9NaNbO_(3)-0.1BiFeO_(3)陶瓷(3.55 J/cm^(3)和70.61%),其储能特性显著提升,储能密度(Wrec)与储能效率(η)分别达到了5.22 J/cm^(3)、83.92%。其优异的储能特性源于BiFeO_(3)和Sr(Ti_(0.85)Zr_(0.15))O_(3)掺杂对陶瓷的晶粒细化、反铁电相稳定性和弛豫特性的双增强机制。同时,0.9[0.9NaNbO_(3)-0.1Bi Fe O_(3)]-0.1Sr(Ti_(0.85)Zr_(0.15))O_(3)陶瓷表现出良好的温度及频率稳定性,是一种极具应用前景的电介质储能材料。

关键词：铌酸钠无铅陶瓷反铁电储能特性充放电特性

Programmed sequential cutting endows Cas9 versatile base substitution capability in plants

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Science China(life Sciences) 2021年第6期64卷 1025-1028页

作者： Wei Yang Wei Qi Yucai li Jiyao Wang Yanmin Luo Dehui Ding Sudong Mo Bo Chen Yu Lu huarong li linjian Jiang Key Laboratory of Pest Monitoring and Green Management Ministry of Agriculture and Rural AffairsDepartment of Plant PathologyCollege of Plant ProtectionChina Agricultural UniversityBeijing 100193China Qingdao Kingagroot Compounds Co.Ltd. Qingdao 266426China

Dear Editors,CRISPR/Cas9-mediated genome editing techniques have triggered a revolution in biology research(Jinek et al.,2012).Cas9 coupled with guide RNAs cuts DNA at precise positions,and the resulting double stranded breaks(DSB)were effectively repaired by non-homologous end joining(NHEJ)pathway in higher eukaryotic cells,including animals and plants.

关键词： substitution versatile base

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线面特征约束的跨源点云配准方法

地球信息科学学报 2024年第5期26卷 1180-1192页

作者：李华蓉毛宏宇赵一毕艾琳陈团辛伟钟涛重庆交通大学智慧城市学院重庆400074 广州南方测绘科技股份有限公司重庆分公司重庆400021

随着三维传感器和三维重建技术的发展,跨源点云的配准融合成为了一个研究热点。传统的配准方法使用单一特征作为配准基元,会存在空间几何约束弱的问题。为了高精度融合跨源点云数据,充分表达场景中的立面信息,本文提出一种基于线面特征... 详细信息

随着三维传感器和三维重建技术的发展,跨源点云的配准融合成为了一个研究热点。传统的配准方法使用单一特征作为配准基元,会存在空间几何约束弱的问题。为了高精度融合跨源点云数据,充分表达场景中的立面信息,本文提出一种基于线面特征约束的跨源点云配准方法。通过RANSAC算法提取跨源点云中的同名线、面特征;利用四元数法描述空间变换参数,将线特征作为配准的约束条件,构建空间变换目标函数,估算变换相关参数完成粗配准,解决尺度差异性;在粗配准的基础上将面特征作为约束条件,求解旋转矩阵和平移参数完成精配准。以面特征代替点特征作为配准基元能避免从海量的点云数据中选取公共点,减少由人为选择的偶然误差,避免了误差的积累,进一步提高配准精度。最终使用影像匹配点云与激光雷达点云数据进行实验,结果为:在小区域单建筑、多建筑和大区域建筑群中RMSE值分别为0.3647、0.0320和0.6146,且同名面之间的夹角最大不超过1.5°,最小不到0.1°,夹角角度均值在1°范围内。结果表明本文方法对具有尺度差异的跨源点云具有较好的配准效果。

关键词：点云配准跨源点云线面特征约束激光点云影像匹配点云尺度因子平移参数旋转矩阵

Scaled Bipartite Consensus Controller Design for Second-Order Multi-Agent Systems with Mixed Time-Delays

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Journal of Systems Science & Complexity 2022年第3期35卷 888-908页

作者： YANG Ruitian PENG li YANG Yongqing ZHAO huarong Research Center of Engineering Applications for IOT Jiangnan UniversityWuxi 214122China Key Laboratory of Advanced Process Control for light Industry(Ministry of Education) School of ScienceJiangnan UniversityWuxi 214122China

The scaled bipartite consensus of second-order multi-agent systems is investigated in this paper.The internal delay and distributed delay are also considered in the dynamic model of each agent,in which the delays can be time-varying and large.The communication topology among agents is assumed to be directed and structurally balanced.On one hand,in order to guarantee scaled bipartite consensus of second-order multi-agent systems,an adaptive periodically intermittent control protocol is applied.On the other hand,some consensus criteria in the form of matrix inequalities are obtained by using Jensen inequality,Lyapunov stability theory and graph theory.Finally,a numerical simulation example is given to demonstrate the feasibility of theoretical results.

关键词： Adaptive control mixed delays multi-agent systems periodically intermittent control scaled bipartite consensus