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Cooperative structure of Li/Ni mixing and stacking faults for achieving high-capacity Co-free Li-rich oxides

Journal of Energy Chemistry 2024年第8期95卷 315-324,I0007页

作者： Zhen Wu Yu-Han Zhang Hao Wang Zewen Liu xudong Zhang Xin Dai Kunyang Zou Xiaoming Lou Xuechen Hu Lijing Ma yan Liu Yongning Liu State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049ShaanxiChina Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101ShandongChina Hefei Advanced Computing Center Operation Management Corp Ltd Hefei 230088AnhuiChina Center for High Performance Computing Network Information CenterXi’an Jiaotong UniversityXi’an 710049ShaanxiChina Wuhan Dongfeng Motor Corporation Ltd Wuhan 430056HubeiChina School of Materials Science and Intelligent Engineering Nanjing UniversitySuzhou 215163JiangsuChina Key Laboratory of MEMS of the Ministry of Education Southeast UniversityNanjing 210096JiangsuChina International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong UniversityXi’an 710049ShaanxiChina

Co-free Li-rich layered oxides(LLOs)are emerging as promising cathode materials for Li-ion batteries due to their low cost and high ***,they commonly face severe structural instability and poor electrochemical activity,leading to diminished capacity and voltage ***,we introduce a Co-free LLO,Li_(1.167)Ni_(0.222)Mn_(0.611)O_(2)(Cf-L1),which features a cooperative structure of Li/Ni mixing and stacking *** structure regulates the crystal and electronic structures,resulting in a higher discharge capacity of 300.6 mA h g^(-1)and enhanced rate capability compared to the typical Co-free LLO,Li_(1.2)Ni_(0.2)Mn_(0.6)O_(2)(Cf-Ls).Density functional theory(DFT)indicates that Li/Ni mixing in LLOs leads to increased Li-O-Li configurations and higher anionic redox activities,while stacking faults further optimize the electronic interactions of transition metal(TM)3d and non-bonding O 2p ***,stacking faults accommodate lattice strain,improving electrochemical reversibility during charge/discharge cycles,as demonstrated by the in situ XRD of Cf-L1 showing less lattice evolution than *** study offers a structured approach to developing Co-free LLOs with enhanced capacity,voltage,rate capability,and cyclability,significantly impacting the advancement of the next-generation Li-ion batteries.

关键词： Co-free Li-rich oxides Li/Ni mixing Stacking faults Electronic structure

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Identification of Highly Repetitive Enhancers with Long-range Regulation Potential in Barley via STARR-seq

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Genomics, Proteomics & Bioinformatics 2024年第2期22卷 107-120页

作者： Wanlin Zhou Haoran Shi Zhiqiang Wang Yuxin Huang Lin Ni xudong Chen yan Liu Haojie Li Caixia Li Yaxi Liu State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130China Triticeae Research Institute Sichuan Agricultural UniversityChengdu 611130China Chengdu Academy of Agricultural and Forestry Sciences Chengdu 611130China

Enhancers are DNA sequences that can strengthen transcription ***,the global identification of plant enhancers is complicated due to uncertainty in the distance and orientation of enhancers,especially in species with large *** this study,we performed self-transcribing active regulatory region sequencing(STARR-seq)for the first time to identify enhancers across the barley genome.A total of 7323 enhancers were successfully identified,and among 45 randomly selected enhancers,over 75%were effective as validated by a dual-luciferase reporter assay system in the lower epidermis of tobacco ***,up to 53.5%of the barley enhancers were repetitive sequences,especially transposable elements(TEs),thus reinforcing the vital role of repetitive enhancers in gene *** the common active mark H3K4me3 and repressive mark H3K27me3 were abundant among the barley STARR-seq *** addition,the functional range of barley STARR-seq enhancers seemed much broader than that of rice or maize and extended to±100 kb of the gene body,and this finding was consistent with the high expression levels of genes in the *** study specifically depicts the unique features of barley enhancers and provides available barley enhancers for further utilization.

关键词： Barley Enhancer Transposable element Gene expression Repetitive sequence

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Valorization of Camellia oleifera oil processing byproducts to value-added chemicals and biobased materials: A critical review

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Green Energy & Environment 2024年第1期9卷 28-53页

作者： xudong Liu Yiying Wu yang Gao Zhicheng Jiang Zicheng Zhao Wenquan Zeng Mingyu Xie Sisi Liu Rukuan Liu yan Chao Suli Nie Aihua Zhang Changzhu Li Zhihong Xiao State Key Laboratory of Utilization of Woody Oil Resource Hunan Academy of ForestryChangsha410004China Key Laboratory of State Forestry and Grassland Administration on Utilization Science for Southern Woody Oil Resource Hunan Academy of ForestryChangsha410004China Hunan Provincial Key Laboratory of Oils and Fats Molecular Structure and Function Changsha410004China State Key Laboratory of Separation Membranes and Membrane Processes College of ChemistryTiangong UniversityTianjin300387China College of Biomass Science and Engineering Sichuan UniversityChengdu610065China College of Mechanical Engineering and Mechanics Xiangtan UniversityXiangtan411105China

The *** oil processing industry generates large amounts of solid wastes,including *** shell(COS)and *** cake(COC).Distinct from generally acknowledged lignocellulosic biomass(corn stover,bamboo,birch,etc.),Camellia wastes contain diverse bioactive substances in addition to the abundant lignocellulosic components,and thus,the bioreﬁnery utilization of *** processing byproducts involves complicated processing *** reviewﬁrst summarizes various technologies for extracting and converting the main components in *** oil processing byproducts into value-added chemicals and biobased materials,as well as their potential ***,ultrasound,and Soxhlet extractions are compared for the extraction of functional bioactive components(tannin,ﬂavonoid,saponin,etc.),while solvothermal conversion and pyrolysis are discussed for the conversion of lignocellulosic components into value-added *** application areas of these chemicals according to their properties are introduced in detail,including utilizing antioxidant and anti-in-ﬂammatory properties of the bioactive substances for the speciﬁc application,as well as drop-in chemicals for the substitution of unrenewable fossil fuel-derived *** addition to chemical production,biochar fabricated from COS and its applications in theﬁelds of adsorption,supercapacitor,soil remediation and wood composites are comprehensively reviewed and ***,based on the compositions and structural characteristics of *** byproducts,the development of full-component valorization strategies and the expansion of the appli-cationﬁelds are proposed.

关键词： Camellia oleifera shell Camellia oleifera cake Value-added chemicals Bioactive components Biobased materials

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不同奶牛粪水还田量对苜蓿生长及土壤理化性质的影响

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中国农学通报 2024年第15期40卷 159-164页

作者：刘青松贾艳丽徐玉鹏肖宇刘桂霞滕霄屈新月李洪波阎旭东沧州市农林科学院河北沧州061001 河北大学生命科学学院河北保定071002 河北省农业农村厅科教处石家庄050000

为探讨规模化奶牛养殖场粪水还田对苜蓿生长及土壤理化性质的影响,本研究设计了5种(0、150、300、450、600 m^(3)/hm^(2))经固液分离发酵后的奶牛粪水还田量的试验。通过测定不同还田量下的苜蓿产量、品质、土壤养分含量及重金属含量变... 详细信息

为探讨规模化奶牛养殖场粪水还田对苜蓿生长及土壤理化性质的影响,本研究设计了5种(0、150、300、450、600 m^(3)/hm^(2))经固液分离发酵后的奶牛粪水还田量的试验。通过测定不同还田量下的苜蓿产量、品质、土壤养分含量及重金属含量变化,结果表明:粪水还田能显著提高苜蓿干草产量,随着还田量的增加,产量增加显著,600 m^(3)/hm^(2)的处理下苜蓿全年干草产量达到19369.0 kg/hm^(2);施用粪水不会降低苜蓿的粗蛋白和相对饲喂价值;粪水还田会显著增加土壤的pH和含盐量,同时会提高土壤有机质含量,在全年不施肥的条件下,各处理土壤中有效氮、速效磷和有效钾均表现为下降水平,随着粪水还田量的增加,下降幅度越小,仅靠粪水还田不能满足全年的苜蓿生长需要,应结合施肥效果更佳。粪水还田会增加土壤中铜、镉、砷、铅、铬等重金属的含量,各重金属含量均以600 m^(3)/hm^(2)的水平下增加最大。综合考虑,建议奶牛粪水还田量控制在300~450 m^(3)/hm^(2)范围内,以实现对苜蓿产量和土壤质量的双重改善。

关键词：粪水苜蓿产量品质土壤理化性质还田重金属

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基于键合图模型的SHA/EMA余度系统的故障诊断

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北京航空航天大学学报 2019年第4期45卷 760-768页

作者：刘宏飞于黎明张柱阎旭栋韩旭东北京航空航天大学自动化科学与电气工程学院北京100083 北京航空航天大学飞行学院北京100083

针对液压伺服作动器(SHA)和机电作动器(EMA)组合的余度系统中故障模式复杂的问题,采用基于键合图模型的故障诊断方法,可以诊断出系统中多种参数故障。首先建立SHA/EMA余度系统的行为模型,然后根据因果关系倒置法转换成诊断键合图模型,... 详细信息

针对液压伺服作动器(SHA)和机电作动器(EMA)组合的余度系统中故障模式复杂的问题,采用基于键合图模型的故障诊断方法,可以诊断出系统中多种参数故障。首先建立SHA/EMA余度系统的行为模型,然后根据因果关系倒置法转换成诊断键合图模型,进而推导出计算残差的解析冗余关系式(ARR),并创建故障特征矩阵(FSM)作为故障隔离的依据。联立行为模型和诊断模型对可隔离故障进行诊断,并通过ARR估计故障参数以诊断不可隔离故障。选取典型故障进行仿真验证,结果表明可隔离故障和不可隔离故障均被成功隔离,验证了所提方法对SHA/EMA余度系统的故障诊断是有效可行的。

关键词：余度系统键合图故障诊断解析冗余关系式(ARR) 故障特征矩阵

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Research and development of prevention and control measures on the transmission of pathogens in compartments of passenger transport

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Transportation Safety and Environment 2024年第1期6卷 1-7页

作者： Hongqi Tian Tiantian Wang Lei Xu Miao Sha Shujun Chen Zeyun yang yan Zhu Dawei Chen Hengkui Li Lei Zhang Bosen Qian xudong Tian Key Laboratory of Traffic Safety on Track of Ministry of Education School of Traffic&Transportation EngineeringCentral South UniversityChangshaHunan 410075China CRRC Qingdao Sifang Co. Ltd.QingdaoShandong 266111China CRRC Changchun Railway Vehicles Co. Ltd.ChangchunJilin 130062China CRRC Tangshan Co. Ltd.TangshanHebei 064000China CRRC Industrial Research Institute(Qingdao)Co. Ltd.QingdaoShandong 266109China

Contagious pathogens like COVID-19 transmitted via respiratory droplets spread effortlessly in the passenger compartments of transport,significantly jeopardizing passengers’safety when taking public *** date,studies on the fundamental theories of airborne droplet transmission and the engineering application of decontamination techniques are insufficient for the prevention and control of pathogens transmitting in the compartments of passenger *** is essential to systematically investigate the control approaches to restrain pathogens from transmitting in passenger ***,a theoretical framework for calculating the transmission of pathogens in a complex compartment environment was proposed,and experimental platforms that satisfy the Biosafety Level-2 Laboratory safety level for compartment environment simulations were built based on a set of real train *** these bases,numerical investigations on the motion of pathogen-laden droplets were conducted,and decontamination techniques were examined ***,control measures on the pathogen transmission and pathogen decontamination schemes were ***,highly efficient decontamination devices were developed,and coping strategies for epidemic emergencies were *** outcomes provide theoretical and technical support for developing the next generation of transportation and the prevention and control measures cooperatively considering regular and pandemic times.

关键词： contagious pathogen airborne transmission passenger compartment of transport decontamination technique

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Deficiency of betaine-homocysteine methyltransferase activates glucose-6-phosphate dehydrogenase(G6PD)by decreasing arginine methylation of G6PD in hepatocellular carcinogenesis

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Science China(Life Sciences) 2024年第8期67卷 1648-1665页

作者： Jie Gao Xiaoyi Shi Yaohui Sun xudong Liu Feng Zhang Chengcheng Shi Xiao Yu Zhiping yan Long Liu Shizhe Yu Jiacheng Zhang Xiaodan Zhang Shuijun Zhang Wenzhi Guo Department of Hepatobiliary and Pancreatic Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Henan Diagnosis&Treatment League for Hepatopathy The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Henan Innovative Research Group for Hepatobiliary&Pancreatic Surgery and Digestive Organ Transplantation Zhengzhou 450052China Henan Organ Transplantation Quality Control Centre Zhengzhou 450052China Henan Engineering Technology Research Center for Organ Transplantation Zhengzhou 450052China Department of Pharmacy The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Department of General Surgery Huashan HospitalFudan University Shanghai 200040China Cancer Metastasis Institute Fudan UniversityShanghai 200040China

Betaine-homocysteine methyltransferase(BHMT)regulates protein methylation and is correlated with tumorigenesis;however,the effects and regulation of BHMT in hepatocarcinogenesis remain largely ***,we determined the clinical significance of BHMT in the occurrence and progression of hepatocellular carcinoma(HCC)using tissue samples from 198 *** was to be frequently found(86.6%)expressed at relatively low levels in HCC tissues and was positively correlated with the overall survival of patients with *** overexpression effectively suppressed several malignant phenotypes in hepatoma cells in vitro and in vivo,whereas complete knockout of Bhmt(Bhmt^(−/−))produced the opposite *** combined proteomics,metabolomics,and molecular biological strategies and detected that Bhmt^(−/−)promoted hepatocarcinogenesis and tumor progression by enhancing the activity of glucose-6-phosphate dehydrogenase(G6PD)and PPP metabolism in DEN-induced HCC mouse and subcutaneous tumor-bearing *** contrast,restoration of Bhmt with an AAV8-Bhmt injection or pharmacological inhibition of G6PD attenuated ***,coimmunoprecipitation identified monomethylated modifications of the G6PD,and BHMT regulated the methylation of *** sequence analysis,generation and application of specific antibodies,and site-directed mutagenesis indicated G6PD methylation at the arginine residue ***,we established bidirectionally regulated BHMT cellular models combined with methylation-deficient G6PD mutants to demonstrate that BHMT potentiated arginine methylation of G6PD,thereby inhibiting G6PD activity,which in turn suppressed *** together,this study reveals a new methylation-regulatory mechanism in hepatocarcinogenesis owing to BHMT deficiency,suggesting a potential therapeutic strategy for HCC treatment.

关键词： HCC BHMT arginine methylation G6PD PPP metabolism

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果糖结晶工艺的优化

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农业机械学报 2009年第9期40卷 155-160页

作者：闫序东杨瑞金华霄张文斌江南大学食品科学与技术国家重点实验室无锡214122 江南大学食品学院无锡214122

针对国内结晶果糖生产中存在的问题,对果糖结晶工艺进行改进,并优化工艺参数。研究发现,向高果糖浆中加入表面活性剂Span 60,可使结晶果糖的变异系数降低51.5%,提高果糖晶体均匀性;在进行结晶前,用高效糖化酶降解低聚糖,可将果糖浆粘度... 详细信息

针对国内结晶果糖生产中存在的问题,对果糖结晶工艺进行改进,并优化工艺参数。研究发现,向高果糖浆中加入表面活性剂Span 60,可使结晶果糖的变异系数降低51.5%,提高果糖晶体均匀性;在进行结晶前,用高效糖化酶降解低聚糖,可将果糖浆粘度降低26.2%。酶解最佳工艺条件为：酶解时间20 h,强效糖化酶用量为600 mg/kg,pH值4.0,酶解温度55℃。优化的果糖结晶工艺条件为：晶种添加量为2%,初始过饱和度为1.02~1.08,添加乙醇前的降温速率为0.4℃/h;乙醇添加量为0.2,Span 60用量为100 mg/kg。添加乙醇后降温速率：52~46℃为0.28℃/h,46~43℃为0.55℃/h,43~35℃为0.80℃/h,35~25℃为0.90℃/h。在优化条件下,最终提糖率为56.92%,结晶果糖平均粒径为221.9μm。

关键词：结晶果糖酶解表面活性剂结晶工艺

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Effects of Dietary Supplementation of Zinc-Methionine on Growth Performance and Serum Parameters of Jirong Rabbits

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Journal of Northeast Agricultural University(English Edition) 2008年第2期15卷 33-36页

作者： ZHANG Jing ZHOU Xu SHEN Jinglin DING Honghao ZHAO Yun TANG Hongyu SHI xudong FANG Hengtong yan Hailiang College of Animal Science and Veterinary Medicine Jilin University Changchun 130062 China

A 45-day growth trial was conducted to investigate the effects of 4 concentrations （0, 40, 80, 120 mg·kg^-1 Zinc- Methionine （Zn-Met） supplementation on growth and serum biochemical indexes of Jirong rabbits （60-day-old）. A total of 72 Jirong rabbits were randomly divided into 4 groups, 3 replicates with 6 rabbits each. The Met value in the basal diet was 0.60%. ADGs of group Ⅱ, Ⅲ and Ⅳ were significantly different than that of control, increased by 3.16%, 7.53%, 8.14% during 0-15 days and 7.58%, 15.60%, 15.71% during 16-30 days and 8.27%, 12.43%, 11.44% during 31-45 days （P〈0.05）, but it was not significantly different in ADG among group Ⅱ, Ⅲ and Ⅳ （P〉0.05）. The fur area and the density of hair of groups Ⅱ, Ⅲ and Ⅳ were not significantly different than that of control （P〉0.05）. The content of serum zinc, AKP, ALB for groups Ⅱ, Ⅲ and Ⅳ were significantly different than that of control （P〈0.05）. The serum TP and SUN in group Ⅱ, Ⅲ and IV were not significantly different than that of control （P〉0.05）. The results show that dietary supplementation of Zn-Met is much more efficient than dietary without Zn-Met for 60-day-old Jirong rabbits.

关键词： Zn-Met growth performance serum parameter Jirong rabbits

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魔芋葡甘露聚糖羧甲基化过程的优化

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食品与发酵工业 2006年第8期32卷 75-78页

作者：吴海燕钱和闫序东江南大学食品学院教育部功能食品工程中心

羧甲基葡甘露聚糖是魔芋葡甘露聚糖的重要产物。文中以反应时间、理论取代度、反应温度、NaOH与氯乙酸摩尔比、液料比、乙醇的体积分数作为葡甘露聚糖羧甲基化的影响因素,根据Box-Benhnken的中心组合实验设计原理,在confounded fraction... 详细信息

羧甲基葡甘露聚糖是魔芋葡甘露聚糖的重要产物。文中以反应时间、理论取代度、反应温度、NaOH与氯乙酸摩尔比、液料比、乙醇的体积分数作为葡甘露聚糖羧甲基化的影响因素,根据Box-Benhnken的中心组合实验设计原理,在confounded fractional factorial designs的基础上,采用三因素三水平的响应面分析法对羧甲基化过程进行优化。结果表明:羧甲基化的最佳条件为,理论取代度2.8、NaOH与氯乙酸摩尔比值为2.5、乙醇的体积分数70%时,可得到取代度0.772 9羧甲基葡甘露聚糖。

关键词：魔芋葡甘露聚糖羧甲基优化响应面分析

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