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A universal multifunctional dual cation doping strategy towards stabilized ultra-high nickel cobalt-free lithium layered oxide cathode

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Journal of Energy Chemistry 2024年第8期95卷 296-305,I0007页

作者： Yabin Shen dongming Yin Limin Wang gang Huang Yong Cheng Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450002HenanChina State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina

Ultra-high nickel cobalt-free lithium layered oxides are promising cathode material for lithium-ion batteries(LIBs)because of their relatively high capacity and low ***,the high nickel content would induce bulk structure degradation and interfacial environment deterioration,and the absence of Co element reduces the lithium diffusion kinetics,severely limiting the performance liberation of this kind of ***,a multifunctional Ti/Zr dual cation co-doping strategy has been employed to improve the lithium storage performance of LiNi_(0.9)Mn_(0.1)O_(2)(NM91)*** the one hand,the Ti/Zr co-doping weakens the Li^(+)/Ni^(2+)mixing through magnetic interactions due to the inexistence of unpaired electrons for Ti^(4+)and Zr^(4+),increasing the lithium diffusion rate and suppressing the harmful coexistence of H1 and H2 *** the other hand,they enhance the lattice oxygen stability because of the strong Ti-O and Zr-O bonds,inhibiting the undesired H3 phase transition and lattice oxygen loss,improving the bulk structure and cathode-electrolyte interface *** a result,the Ti/Zr co-doped NM91(NMTZ)exhibits a 91.2%capacity retention rate after 100 cycles,while that of NM91 is only82.9%.Also,the NMTZ displays better rate performance than NM91 with output capacities of 115 and93 mA h g^(-1)at a high current density of 5 C,***,the designed NMTZ could enable the full battery to deliver an energy density up to 263 W h kg^(-1),making the ultra-high nickel cobaltfree lithium layered oxide cathode closer to practical applications.

关键词： Lithium-ion battery Ultra-high nickel cobalt-free cathode Ti/Zr co-doping Li^(+)/Ni^(2+)mixing Lattice oxygen stability

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Comprehensive evaluation of peanut nitrogen-efficient germplasm

Comprehensive evaluation of peanut nitrogen-efficient germpl...

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第二十届中国作物学会学术年会

作者： Ping Zhang dongming gang Yanliang Wang Pei Guo Chunji Jiang Haiqiu Yu College of Agronomy Shenyang Agricultural University

【Background】Nitrogen is essential for plant growth and development, increasing nitrogen input can improve crop yield to a certain extent, but the phenomenon of higher fertiliser use and lower efficiency has become increasingly prominent. A key measure for minimising the negative impact of resource utilisation in agriculture on the environment is to screen and cultivate high yielding and highly N-efficient varieties, whereby, there is an urgent need to improve crop N uptake and use efficiency. Peanut genotypes are known to differ for N efficiency. Determining the appropriate N application rate together with efficient water and fertiliser management can improve peanut N efficiency. However, most studies on peanuts have focused on their cultivation and physical and chemical properties, and few studies have been conducted on the responses of peanut germplasm resources to stress. By screening N-efficient core germplasm resources, establishing a comprehensive evaluation system for efficient N utilisation in peanut can give full play to the nitrogen fixation effect of peanuts and have certain heritability, improve N efficiency, improve the soil environment, and play an important role in N absorption and utilisation.【Materials and Methods】In this study, 127 peanut core collections were used as experimental materials, and their nitrogen efficiency was evaluated under hydroponic and field conditions respectively. At seedling stage, Ca(NO3)2 was used as nitrogen source and normal concentration(7.5 mM N) was used as control. Three low nitrogen concentrations N1(0.075 mM N), N2(0.15 mM N) and N3(0.75 mM N) were set for 28 days after continuous treatment to observe the leaf etiolation, determine the growth of seedlings and nitrogen uptake and utilization to evaluate the nitrogen efficiency. In the field, nitrogen efficiency, yield and yield-related traits were evaluated by using normal nitrogen fertilizer(90kg/ha) and no nitrogen fertilizer(0kg/ha) as nitrogen treatments.【Result

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基于无人机点云与BIM模型的桥梁施工进度识别方法

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重庆交通大学学报（自然科学版） 2024年第6期43卷 1-7页

作者：冯东明葛健吴刚员建斌东南大学混凝土及预应力混凝土结构教育部重点实验室江苏南京211189 东南大学智慧建造与运维国际地方联合工程研究中心江苏南京211189 东南大学土木工程学院江苏南京211189 中铁建投山西高速公路有限公司山西运城044031

为准确实现桥梁施工进度监控自动化,提出一种基于无人机(unmanned aerial vehicle,UAV)点云和BIM模型的桥梁施工进度识别方法。该方法基于UAV路径规划及三维重建获取实际进度点云,通过BIM模型转点云的方式将BIM模型转化为计划进度点云,... 详细信息

为准确实现桥梁施工进度监控自动化,提出一种基于无人机(unmanned aerial vehicle,UAV)点云和BIM模型的桥梁施工进度识别方法。该方法基于UAV路径规划及三维重建获取实际进度点云,通过BIM模型转点云的方式将BIM模型转化为计划进度点云,配准实际与计划进度点云,基于最近邻搜索及颜色区域生长分割桥梁构件,获得桥梁各构件的完成度。以山西临猗黄河大桥为研究对象,采集实际与计划点云数据,计算所得的各构件完成度准确度均在95%以上。该方法可快速采集进度数据并实现构件级别的桥梁施工进度识别,提高桥梁施工进度监控的自动化。

关键词：桥梁工程施工进度识别无人机点云 BIM 三维重建

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Machine learning-based automatic control of tunneling posture of shield machine

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Journal of Rock Mechanics and Geotechnical Engineering 2022年第4期14卷 1153-1164页

作者： Hongwei Huang Jiaqi Chang dongming Zhang Jie Zhang Huiming Wu gang Li Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Tongji UniversityShanghaiChina Department of Geotechnical Engineering Tongji UniversityShanghaiChina Shanghai Tunnel Engineering Co. Ltd.ShanghaiChina

For a tunnel driven by a shield machine,the posture of the driving machine is essential to the construction quality and environmental ***,the machine posture is controlled by the experienced driver of shield machine by setting hundreds of tunneling parameters *** learning(ML)algorithm is an alternative method that can let the computer to learn from the driver’s operation and try to model the relationship between parameters ***,in this paper,three ML algorithms,***-layer perception(MLP),support vector machine(SVM)and gradient boosting regression(GBR),are improved by genetic algorithm(GA)and principal component analysis(PCA)to predict the tunneling posture of the shield machine.A set of the parameters for shield tunneling is extracted from the construction site of a Shanghai *** total,53,785 pairwise data points are collected for about 373 d and the ratio between training set,validation set and test set is 3:1:*** pairwise data point includes 83 types of parameters covering the shield posture,construction parameters,and soil stratum properties at the same *** test results show that the averaged R2 of MLP,SVM and GBR based models are 0.942,0.935 and 0.6,*** the automatic control for the posture of shield tunnel is illustrated with an application example of the proposed *** proposed method is proved to be helpful in controlling the construction quality with optimized construction parameters.

关键词： Shield tunneling Machine learning(ML) Construction parameters Optimization

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The role of climate factors in geographic variation in body mass and wing length in a passerine bird

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Chinese Birds 2017年第1期8卷 3-11页

作者： Yanfeng Sun Mo Li gang Song Fumin Lei dongming Li Yuefeng Wu Key Laboratory of Animal Physiology Biochemistry and Molecular Biology of Hebei Province College of Life Sciences Hebei Normal University Ocean College Hebei Agricultural University Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences

Background: Geographic variation in body size is assumed to reflect adaptation to local environmental conditions. Although Bergmann's rule is usually sufficient to explain such variation in homeotherms, some exceptions have been documented. The relationship between altitude, latitude and body size, has been well documented for some vertebrate taxa during the past decades. However, relatively little information is available on the effects of climate variables on body size in ***: We collected the data of 267 adult Eurasian Tree Sparrow(Passer montanus) specimens sampled at 48 localities in China's mainland, and further investigated the relationships between two response variables, body mass and wing length, as well as a suit of explanatory variables, i.e. altitude, latitude, mean annual temperature(MAT), annual precipitation(PRC), annual sunshine hours(SUN), average annual wind speed(WS), air pressure(AP) and relative humidity(RH).Results: Our study showed that(1) although the sexes did not differ significantly in body mass, males had longer wings than females;(2) body mass and wing length were positively correlated with altitude but not with latitude;(3) body mass and wing length were negatively correlated with AP and RH, but not significantly correlated with WS. Body mass was positively correlated with SUN and inversely correlated with MAT. Wing length was not correlated with MAT in either sex, but was positively correlated with SUN and negatively correlated with PRC in male sparrows;(4) variation in body mass could be best explained by AP and SUN, whereas variation in wing length could be explained by RH and AP in both sexes. In addition, variation in male sparrows can be explained by SUN, WS and PRC but not in ***: Two different proxies of body size, body mass and wing length, correlated with same geographic factors and different climate factors. These differences may reflect selection for heat conservation in the case of body mass, and

关键词： Body mass Wing length Altitude Latitude Climate factor Eurasian Tree Sparrow

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超/亚临界水处理技术研究进展

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山东化工 2024年第5期53卷 122-125页

作者：王丹君山东明杨智云陈刚陕西煤业化工技术研究院有限责任公司陕西西安710100

超/亚临界水处理技术是一种绿色、高效的高级氧化技术,在工业废水、废弃物处理方面具有良好的技术优势和广阔的应用前景。综述了超/亚临界水处理技术,包括湿式氧化技术、超临界水氧化技术和超/亚临界水脱盐技术原理、研究进展和工业应用... 详细信息

超/亚临界水处理技术是一种绿色、高效的高级氧化技术,在工业废水、废弃物处理方面具有良好的技术优势和广阔的应用前景。综述了超/亚临界水处理技术,包括湿式氧化技术、超临界水氧化技术和超/亚临界水脱盐技术原理、研究进展和工业应用,总结了超/亚临界水处理技术存在的问题,分析了导致问题的原因并讨论了相应的解决思路。

关键词：湿式氧化超临界水氧化亚临界水有机废水高盐废水

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Comparative transcriptomic and metabolomic analysis reveals pectoralis highland adaptation across altitudinal songbirds

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Integrative Zoology 2022年第6期17卷 1162-1178页

作者： Ying XIONG Yan HAO Yalin CHENG Liqing FAN gang SONG dongming LI Yanhua QU Fumin LEI Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina Key Laboratory of Forest Ecology in Tibet Plateau of Ministry of Education Institute of Tibet Plateau EcologyTibet Agriculture&Animal Husbandry UniversityNyingchiChina Key Laboratory of Animal Physiology Biochemistry and Molecular Biology of Hebei ProvinceCollege of Life SciencesHebei Normal UniversityShijiazhuangChina Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingChina

Pectoralis phenotypic variation plays a fundamental role in locomotion and thermogenesis in highland ***-ever,its regulatory and metabolic mechanisms remain enigmatic to ***,we integrated phenomic,tran-scriptomic,and metabolomic approaches to determine muscle variation and its underpinning mechanisms across altitudinal *** conﬁrmed that all highland birds had considerable increases in muscle oxidative capacity,capillarity,and mitochondrial abundance in our ***,transcriptomic analyses found that differentially expressed genes in phenotype-associated modules enriched for blood vessel,muscle structure development,and mitochondrial *** similar traits and functional enrichments across highland birds,different mechanisms drove their occurrence in high-altitude tree sparrow and 2 snowﬁ***,a metabolic feature shared by all the 3 highland birds is the improvement in insulin sensitivity and glucose utilization through activating insulin signaling pathway,which is vital to increase muscle oxidative capacity and maintain metabolic ***,fatty acid biosynthesis and oxidation are enhanced in only 2 snowﬁnches which had a long evolutionary history on the high plateau,also differing from ketone body metabolism in recently introduced colonizer of the tree sparrow of the high *** study represents a vital contribution to reveal the regulatory and metabolic basis of pectoralis variation across altitudinal songbirds.

关键词： altitude gas chromatography–mass spectrometry hypoxia pectoralis RNA–seq

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Coping with extremes:convergences of habitat use,territoriality,and diet in summer but divergences in winter between two sympatric snow finches on the Qinghai-Tibet Plateau

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Integrative Zoology 2020年第6期15卷 533-543页

作者： dongming LI Jason E.DAVIS Yanfeng SUN gang WANG Ghulam NABI John C.WINGFIELD Fumin LEI Key Laboratory of Animal Physiology Biochemistry and Molecular Biology of Hebei ProvinceCollege of Life SciencesHebei Normal UniversityShijiazhuangHebei ProvinceChina Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijingChina Department of Neurobiology Physiology and BehaviorUniversity of CaliforniaDavisCaliforniaUSA Department of Biology Radford UniversityRadfordVirginiaUSA Ocean College Hebei Agricultural UniversityQinhuangdaoHebei ProvinceChina University of Chinese Academy of Sciences BeijingChina Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingChina

On the Qinghai-Tibet Plateau,extreme environmental conditions have imposed intense selective pressure on the evolution of phenotypic traits of wild *** date,limited information is available on behavioral and ecological traits concerning niche differentiation among sympatric animals on the Qinghai-Tibet Plateau,especially during winter when the environments are most ***,we studied the seasonal variations in habitat occurrence,territorial behavior,and diet in two sympatric snow finches(the white-rumped snow finch,Onychostruthus taczanowskii,WRSF;and the rufous-necked snow finch,Pyrgilauda ruficollis,RNSF)to determine convergence and divergence of ecological traits in such severe climatic *** results showed that:(i)WRSF occupied rural areas as a dominant species throughout the annual cycle while RNSF occupied the rural areas in summer and then shifted to human-occupied areas in winter and spring;(ii)WRSFs exhibited robust aggressive behavior and territoriality during winter relative to RNSFs;(iii)the diets of both species varied with the season but did not vary between species except that WRSF ate significantly more seeds but RNSF consumed more starchy material derived from human food waste during ***,the separations in the spatial niche and territoriality between WRSF and RNSF,especially in winter,may contribute to alleviating the pressure of interspecific competition,and promoting the coexistence of the two sympatric snow finches in the extreme environments on the Qinghai-Tibet Plateau.

关键词： diet habitat use Qinghai-Tibet Plateau snow finch territorial behavior

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基于产品质量控制预测机制的圆锥破碎机优化方法

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机械工程学报 2010年第3期46卷 152-157页

作者：董钢范秀敏黄东明上海交通大学机械与动力工程学院上海200240 上海交通大学机械系统与振动国家重点实验室上海200240

结合圆锥破碎机设计研发过程中所存在的实际问题,通过分析圆锥破碎机动锥单次摆动过程中下落物料的总量,推导并建立针对曲线腔形圆锥破碎机的生产率计算模型;基于总体平衡理论,对圆锥破碎机破碎腔分层情况加以分析,深入研究破碎产品粒... 详细信息

结合圆锥破碎机设计研发过程中所存在的实际问题,通过分析圆锥破碎机动锥单次摆动过程中下落物料的总量,推导并建立针对曲线腔形圆锥破碎机的生产率计算模型;基于总体平衡理论,对圆锥破碎机破碎腔分层情况加以分析,深入研究破碎产品粒度分布情况及其计算方法;将用于描述破碎产品粒形情况的经验模型与粒度预测模型相结合,建立基于粒度分布情况的破碎产品针片率预测模型。建立起基于质量控制预测机制的圆锥破碎机优化设计模型,并分析圆锥破碎机结构参数、工作参数对于圆锥破碎机生产率,以及破碎产品质量影响情况,为研制开发高效、节能的新型圆锥破碎机提供理论依据。

关键词：圆锥破碎机优化模型生产率粒度分布针片率质量控制预测

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基于LSTM网络的车辆动态荷载识别方法

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东南大学学报（自然科学版） 2023年第2期53卷 187-192页

作者：张璐冯东明吴刚东南大学混凝土及预应力混凝土结构教育部重点实验室南京211189 东南大学智慧建造与运维国家地方联合工程研究中心南京211189

为了识别车辆的动态荷载,提出了一种基于长短时记忆网络的方法.该方法以桥梁加速度响应为输入,采用有限的数据集,实现车辆动态荷载的识别.建立了车桥耦合模型进行验证,以60组桥梁加速度响应为输入,以相应的车辆动态荷载为输出,通过训练... 详细信息

为了识别车辆的动态荷载,提出了一种基于长短时记忆网络的方法.该方法以桥梁加速度响应为输入,采用有限的数据集,实现车辆动态荷载的识别.建立了车桥耦合模型进行验证,以60组桥梁加速度响应为输入,以相应的车辆动态荷载为输出,通过训练长短时记忆网络来反演车辆动态荷载,并讨论了环境噪声及路面粗糙度对识别效果的影响.结果表明:测试集的车辆动态荷载识别误差平均值均小于5%;车辆动态荷载识别误差不随噪声水平变化,且平均误差小于5%;车辆动态荷载识别误差随着路面粗糙度等级的增加呈现略微增加的趋势,平均误差小于5%.在不同噪声及粗糙度水平下,长短时记忆网络均可用于车辆动态荷载的识别.

关键词：长短时记忆网络结构健康监测车桥耦合系统加速度响应车辆动态荷载识别

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