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Screening of Long Cowpea[Vigna unguiculata(L.)***]Varieties in Autumn in Hunan and Comparison of Various Comprehensive Evaluation Methods

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Plant Diseases and Pests 2024年第5期15卷 33-39页

作者： Lin HUANG Zhibing CHEN Wan JIANG Xincheng SUN Zhongwu ZHANG Jie KANG Lianyong YANG Weiping CHEN yuanqun peng Changde Agriculture and Forestry Science Academy Changde 415000China Changde Branch of Hunan Academy of Agricultural Sciences Changde 415000China Changde City Agricultural Technology Extension Center Station Changde 415000China

[Objectives]The paper was to screen new varieties of long cowpea that are suitable for autumn cultivation in Hunan,as well as to develop a comprehensive evaluation method to assess their adaptability and performance.[Methods]A total of 48 long cowpea varieties were introduced,and a range of comprehensive evaluation methods was employed to assess these varieties through the collection and analysis of field data.[Results]The square Euclidean distance of 14 allowed for the classification of all varieties into eight distinct *** II,III,and V belong to the autumn dominant group within this region,while groups I and VIII belong to the intermediate ***,groups IV,VI,and VII belong to the autumn inferior group in this *** a comparative analysis of various comprehensive evaluation methods,it was determined that the common factor comprehensive evaluation,grey correlation method,and fuzzy evaluation method were appropriate for application in the selection of long cowpea ***,the evaluation outcomes were largely consistent with the cluster pedigree diagram.[Conclusions]Through comprehensive index method,ten varieties demonstrating superior performance in autumn cultivation have been identified,including C20,C42,C29,C40,C3,C14,C18,C25,C15,and *** selected varieties exhibit several advantageous traits,such as a reduced growth duration,a lower position of initial flower nodes,a decreased number of branches,predominantly green young pods,elongated pod strips,thicker pod structures,an increased number of pods per plant,and higher overall *** characteristics render them particularly valuable for extensive cultivation.

关键词： Long cowpea Variety Screening Cluster analysis Comprehensive evaluation method

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Construction Technology for New Arched All-Steel Earth-inserted Tunnel

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Agricultural Biotechnology 2018年第3期7卷 187-190页

作者： Xincheng SUN Yuanhua ZHAN Jun TIAN Zhongwu ZHANG Liangyong YANG Weiping CHEN yuanqun peng Jie KANG Xiufang Bai Changde Agriculture and Forestry Science Academy Hunan 415000 China

According to the influence of climatic conditions on vegetable production in the Yangtze River Basin,the existing arched tunnel was improved through investigation to provide guidance for the construction of arched ste... 详细信息

关键词： Earth-inserted tunnel All-steel structure Construction technology

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雨水渗入对土石坝边坡稳定性影响分析

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公路工程 2020年第4期45卷 211-216页

作者：史建峰鹏远群山西路桥第一工程有限责任公司山西太原030000 太原科技大学山西太原030024

针对土石坝边坡在雨水渗入作用下易引起边坡孔隙水压变化,导致结构失稳的问题,采用SLOP/W有限元软件构建土石坝边坡模型,重点分析了降雨强度、降雨持续时间、降雨雨型和前期降雨条件下土坝坡内暂态孔隙水压力分布,得到坝体在不同工况下... 详细信息

针对土石坝边坡在雨水渗入作用下易引起边坡孔隙水压变化,导致结构失稳的问题,采用SLOP/W有限元软件构建土石坝边坡模型,重点分析了降雨强度、降雨持续时间、降雨雨型和前期降雨条件下土坝坡内暂态孔隙水压力分布,得到坝体在不同工况下的稳定安全系数,研究结果表明:降雨量相同时,降雨强度小,持续时间长,坝坡基质吸力下降,坝坡的安全稳定性降低,降雨强度大,持续时间短时,雨水以径流方式流失,土坝坡体内部基质的吸力变化较小;降雨总量一定时,降雨峰值数量越多,峰间降雨强度小,坝坡抗滑稳定性越低,当前期降雨和后期降雨间隔时间增大,坝坡安全稳定系数呈先减小后增大,当时间间隔很大时,前期降雨影响有限。

关键词：土石坝渗透系数降雨强度暂态孔隙水压力

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Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang Feng Gao Yu-Gui peng peng Wu Zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

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密度与追肥量对豇豆产量及农艺性状的影响

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中国农机化学报 2018年第6期39卷 71-76页

作者：孙信成张忠武杨连勇陈位平彭元群胡超常德市农林科学研究院湖南常德415000

采用二次旋转回归组合设计,研究密度与追肥量对豇豆产量及农艺性状的影响,探讨高产栽培优化方案。结果表明,追肥量的产量效应大于密度的产量效应;栽培密度为报酬递减效应,追肥量为报酬递增效应。通过数学模型分析得到栽培密度181 631.25... 详细信息

采用二次旋转回归组合设计,研究密度与追肥量对豇豆产量及农艺性状的影响,探讨高产栽培优化方案。结果表明,追肥量的产量效应大于密度的产量效应;栽培密度为报酬递减效应,追肥量为报酬递增效应。通过数学模型分析得到栽培密度181 631.25株/hm^2、追肥量2 103.75kg/hm^2条件下豇豆产量最高。

关键词：豇豆回归设计农艺性状产量数学模型

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Multi boron-doping effects in hard carbon toward enhanced sodium ion storage

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Journal of Energy Chemistry 2025年第1期100卷 730-738页

作者： peng Zheng Wang Zhou Ying Mo Biao Zheng Miaomiao Han Qin Zhong Wenwen Yang peng Gao Lezhi Yang Jilei Liu College of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Greater Bay Area Institute for Innovation Hunan University Changsha Research Institute of Mining & Metallurgy Co. LTD.

Hard carbon （HC） has been considered as promising anode material for sodium-ion batteries （SIBs）.The optimization of hard carbon’s microstructure and solid electrolyte interface （SEI） property are demonstrated effective in enhancing the Na+storage capability,however,a one-step regulation strategy to achieve simultaneous multi-scale structures optimization is highly ***,we have systematically investigated the effects of boron doping on hard carbon’s microstructure and interface chemistry.A variety of structure characterizations show that appropriate amount of boron doping can increase the size of closed pores via rearrangement of carbon layers with improved graphitization degree,which provides more Na+storage ***-situ Fourier transform infrared spectroscopy/electrochemical impedance spectroscopy （FTIR/EIS） and X-ray photoelectron spectroscopy （XPS） analysis demonstrate the presence of more BC3and less B–C–O structures that result in enhanced ion diffusion kinetics and the formation of inorganic rich and robust SEI,which leads to facilitated charge transfer and excellent rate *** a result,the hard carbon anode with optimized boron doping content exhibits enhanced rate and cycling *** general,this work unravels the critical role of boron doping in optimizing the pore structure,interface chemistry and diffusion kinetics of hard carbon,which enables rational design of sodium-ion battery anode with enhanced Na+storage performance.

关键词： X ray photoelectron spectroscopy

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Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin peng Yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening Sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

Lithium-sulfur （Li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （LiPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： Lithium sulfur batteries

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Increase in the variability of terrestrial carbon uptake in response to enhanced future ENSO modulation

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 32-38页

作者： Younong Li Li Dan Jing peng Qidong Yang Fuqiang Yang Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer over the Low-Latitude Plateau Region Department of Atmospheric ScienceYunnan UniversityKunmingChina

El Niño-Southern Oscillation(ENSO)is a major driver of climate change in middle and low latitudes and thus strongly influences the terrestrial carbon cycle through land-air *** the ENSO modulation and carbon flux variability are projected to increase in the future,but their connection still needs further *** investigate the impact of future ENSO modulation on carbon flux variability,this study used 10 CMIP6 earth system models to analyze ENSO modulation and carbon flux variability in middle and low latitudes,and their relationship,under different scenarios simulated by CMIP6 *** results show a high consistency in the simulations,with both ENSO modulation and carbon flux variability showing an increasing trend in the *** higher the emissions scenario,especially SSP5-8.5 compared to SSP2-4.5,the greater the increase in *** flux variability in the middle and low latitudes under SSP2-4.5 increases by 30.9%compared to historical levels during 1951-2000,while under SSP5-8.5 it increases by 58.2%.Further analysis suggests that ENSO influences mid-and low-latitude carbon flux variability primarily through *** occurrence may potentially be attributed to the increased responsiveness of gross primary productivity towards regional temperature fluctuations,combined with the intensified influence of ENSO on land surface temperatures.

关键词： Carbon variability ENSO modulation CMIP6 models

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不同土壤处理对温室黄瓜生长和品质的影响

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北方园艺 2017年第14期 60-64页

作者：孙信成刘娜詹远华田军张忠武杨连勇陈位平彭元群湖南省常德市农林科学研究院蔬菜研究所湖南常德415000 山东农业大学园艺科学与工程学院山东泰安271018

以黄瓜为试材,采用生物菌种、复合肥、鸡粪和基质拌土等4种土壤处理方法,测定了黄瓜的生长和品质指标,以改善设施盐碱地栽培条件下的黄瓜品质。结果表明:4种处理的株高、茎粗、叶绿素含量与对照相比均表现显著性差异,4种处理的品质均优... 详细信息

以黄瓜为试材,采用生物菌种、复合肥、鸡粪和基质拌土等4种土壤处理方法,测定了黄瓜的生长和品质指标,以改善设施盐碱地栽培条件下的黄瓜品质。结果表明:4种处理的株高、茎粗、叶绿素含量与对照相比均表现显著性差异,4种处理的品质均优于对照。其中生物菌种拌土处理的株高显著比对照低10.78%,茎粗、叶绿素、维生素C、可溶性蛋白质、游离氨基酸含量均显著高于对照,分别比对照增加了17.65%、19.79%、20.77%、86.29%、58.90%。综合比较,生物菌种拌土处理能显著促进黄瓜生长和提高品质。

关键词：黄瓜生物菌种基质鸡粪品质

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Synergistic effect of bonding heterogeneity and phonon localization in introducing excellent thermoelectric properties in layered heteroanionic NdZnSbO material

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Journal of Energy Chemistry 2025年第1期100卷 259-272页

作者： Da Wan Shuwei Tang Shulin Bai Xiaodong Li peng Ai Wanrong Guo Tuo Zheng College of Materials Science and Engineering Liaoning Technical University Faculty of Chemistry Northeast Normal University

Layered rare-earth metal oxides, harnessing the dual properties of oxides and two-dimensional layered materials, exhibit remarkable thermal stability and quantum confinement effects. Therefore, this work adopts the first-principles calculation combined with the Boltzmann transport theory to predict the thermoelectric properties of NdZnSbO compound. The coexistence of weak interlayer van der Waals interactions, robust intralayer ionic bonding, and partial covalent bonding leads to remarkable bonding heterogeneity, which engenders pronounced phonon scattering and imposes constraints on thermal transport along the out-of-plane direction. The weakened chemical bonds induced by the antibonding states, together with the rattling-like behavior of the Zn atom, culminate in the profound anharmonicity in the layered NdZnSbO compound. The weakening bond and heavy element contribute to the softness of phonon modes, which significantly diminishes the phonon group velocity. The redistribution-dominated four-phonon scattering process spans a large optical gap, which effectively reduces the lattice thermal conductivity. The NdZnSbO compound exhibits direct semiconductor characteristic with a bandgap of 0.73 e V by adopting the Heyd-Scuseria-Ernzerhof(HSE06) functional in combination with spin–orbit coupling(SOC) effect. The multi-valley feature of NdZnSbO compound augur favorably for band degeneracy, thus amplifying the power factor. Consequently, an optimal figure-of-merit(ZT) of 3.40 at 900 K is achieved for the n-type NdZnSbO compound. The present study delves deeply insights into the origins for the low thermal conductivity of NdZnSbO compound and proposes an optimization scheme to enhance overall thermoelectric performance.

关键词： Bond strength (chemical)

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