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A complete assembly of the sorghum BTx623 reference genome

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Plant Communications 2024年第6期5卷 13-16页

作者： Yuan Deng Peng Zhou Fei li Jing Wang Kun Xie Hongkai liang Chunchao Wang Bin liu zhenxing Zhu Wenbin Zhou Baoqing Dun Xiaochun lu Xianmin Diao Qiang He State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Crop Molecular Improvement Lab Liaoning Academy of Agricultural SciencesShenyangLiaoning 110161China zhongyuan Research Center Chinese Academy of Agricultural SciencesXinxiangHenan 453599China

Dear Editor,Sorghum(Sorghum bicolor),recognized as the world’s fifth most significant cereal crop,plays an essential role as a model for genomic comparison and functional genomics of C4 *** was domesticated in Ethiop... 详细信息

关键词： ). Sorghum environments

Coupling Co2P nanoparticles onto N,P-doped biomass-derived carbon as efficient electrocatalysts for flexible Zn–air batteries

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Rare Metals 2024年第10期43卷 4982-4991页

作者： Shu-Qi li Kang Sun Yan-Yan liu Shu-ling liu Jing-Jing Zhou Wen-Bo Zhang Yi-Hang lu Xiang-Meng Chen Xiao-Peng Wang Bao-Jun li Jian-Chun Jiang College of Science Henan Agricultural University Department of Chemistry Tsinghua University College of Chemistry Zhengzhou University Institute of Chemical Industry of Forest Products National Engineering Lab for Biomass Chemical UtilizationKey and Open Lab on Forest Chemical EngineeringChinese Academy of ForestryState Forestry Administration

Catalysts for oxygen conversion play an important role in energy storage and conversion technologies such as metal-air *** highly active stable,and low-cost catalysts is critical for further implementation of the above ***,an efficien oxygen electrocatalyst with Co2P nanoparticles （NPs）coupling onto N,P-doped porous carbon nanosheets（Co2P@NPAC） derived from cotton stalk is successfully designed and prepared via activation,hydrothermal treatment,and pyrolysis *** excellent properties of electrical conductivity,mass transfer,and synergistic integration between Co2P and N,P-doped carbon endow Co2P@NPAC composite with superior oxygen reduction reaction/oxygen evolution reaction （ORR/OER） ***2P@NPAC catalyst achieves ORR activity with half-wave potential of 0.85 V and high OER activity with overpotential of 261 mV at 10 mA·*** flexible Zn-air batteries （ZABs） based on Co2P@NPAC catalyst revea outstanding performances with a high open-circuit voltage（1.38 V）,a peak power density of (75 mW·cm-2),and a low charge-discharge voltage gap （0.74 V,～200 cycles）The flexible ZABs express the stable discharge-charge voltage gap at various bending *** work provides interesting inspiration for the ingenious design of efficien carbon electrocatalysts from biomass with potential application of energy storage and conversion devices.

关键词： Cotton stalk Flexible Zn–air batteries N,P-doped activated carbon Oxygen reduction reaction

Transcriptional landscape of cotton roots in response to salt stress at single-cell resolution

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Plant Communications 2024年第2期5卷 46-66页

作者： Pengtao li Qiankun liu Yangyang Wei Chaozhu Xing Zhongping Xu Fang Ding Yuling liu Quanwei lu Nan Hu Tao Wang Xiangqian Zhu Shuang Cheng Zhaoguo li Zilin Zhao Yanfang li Jiangping Han Xiaoyan Cai Zhongli Zhou Kunbo Wang Baohong Zhang Fang liu Shuangxia Jin Renhai Peng College of Biology and Food Engineering Anyang Institute of TechnologyAnyangHenan 455000China State Key Laboratory of Cotton Biology Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China Research Base Anyang Institute of TechnologyState Key Laboratory of Cotton BiologyAnyang 455000HenanChina School of life Sciences Zhengzhou UniversityZhengzhouHenan 450001China Hubei Hongshan Laboratory National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanHubeiChina Hubei Key Laboratory of Plant Pathology Huazhong Agricultural UniversityWuhanHubei 430070China Department of Biology East Carolina UniversityGreenvilleNC 27858USA

Increasing soil salinization has led to severe reductions in plant yield and quality,and investigating the mo-lecular mechanism of salt stress response is therefore an urgent *** this study,we systematically analyzed the response of cotton roots to salt stress using single-cell transcriptomics technology;56281 high-quality cells were obtained from 5-day-old lateral root tips of Gossypium arboreum under natural growth conditions and different salt *** cell types with an array of novel marker genes were identified and confirmed by in situ RNA hybridization,and pseudotime analysis of some specific cell types revealed their potential differentiation *** changes in cell numbers under salt stress were observed for outer epidermal and inner endodermal cells,which were significantly enriched in response to stress,amide biosynthetic process,glutathione metabolism,and glycolysis/*** of differentially expressed genes identified in multiple comparisons revealed other functional ag-gregations concentrated on plant-type primary cell wall biogenesis,defense response,phenylpropanoid biosynthesis,and metabolic *** candidate differentially expressed genes encoding transcrip-tion factors or associated with plant hormones also responsive to salt stress were identified,and the func-tion of Ga03G2153,annotated as auxin-responsive GH3.6,was confirmed by virus-induced gene *** GaGH3.6-silenced plants showed a severe stress-susceptible phenotype,and physiological and biochemical measurements indicated that they suffered more significant oxidative *** results suggest that GaGH3.6 might participate in cotton salt tolerance by regulating redox *** thus construct a transcriptional atlas of salt-stressed cotton roots at single-cell resolution,enabling us to explore cellular heterogeneity and differentiation trajectories and providing valuable insights into the mo-lecular mechanisms that underlie plan

关键词： cotton salt stress scRNA-seq root cell types virus-induced gene silencing

Mg(OH)_(2)对磷酸镁水泥水化过程及性能的影响

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材料导报 2024年第17期38卷 73-79页

作者：陈嘉伟张芸侨陈卓凡刘智李军卢忠远赖振宇西南科技大学材料科学与工程学院环境友好能源材料国家重点实验室四川绵阳621010 四川工程职业技术大学建筑工程系四川德阳618030

磷酸镁水泥(MPC)的镁质原料主要为重烧MgO,由于制备重烧MgO需要高温煅烧,其使用成本和碳排放量过高。氢氧化镁(Mg(OH)_(2))的来源丰富,制取成本低廉且无污染、安全环保,如能大量采用对缓解使用成本和碳排放量过高这一问题具有重要意义... 详细信息

磷酸镁水泥(MPC)的镁质原料主要为重烧MgO,由于制备重烧MgO需要高温煅烧,其使用成本和碳排放量过高。氢氧化镁(Mg(OH)_(2))的来源丰富,制取成本低廉且无污染、安全环保,如能大量采用对缓解使用成本和碳排放量过高这一问题具有重要意义。因此,本工作使用Mg(OH)_(2)代替部分重烧MgO,通过X射线衍射、热分析、扫描电镜和能谱分析等测试手段,研究其对MPC工作性能、水化过程、强度发展和微观结构的影响。结果表明,Mg(OH)_(2)的掺入加快了MPC的水化过程,浆体的流动度降低,凝结时间缩短,本工作通过水玻璃热处理改性等缓凝手段改善其工作性能。随着Mg(OH)_(2)的掺入,磷酸镁水泥的水化温度和pH值显著降低,水化28 d后的K-鸟粪石(K-struvite)结晶数量增多,抗压强度随Mg(OH)_(2)含量的增加而降低,当Mg(OH)_(2)掺量在50%以内时,其后期强度下降在15%的范围内,随Mg(OH)_(2)掺量增大,更多的水化产物是由Mg(OH)_(2)反应形成的,当Mg(OH)_(2)掺量为66.6%时,重烧MgO的反应率由平均值22%降低至7%。总而言之,采用大掺量Mg(OH)_(2)制备磷酸镁水泥具有可行性且能确保材料的后期力学性能满足工程应用的要求,对降低磷酸镁水泥使用成本和碳排放具有潜在的应用前景。

关键词： Mg(OH)_(2) 磷酸镁水泥水化过程工作性能

A single-site anisotropic soft-core model for the study of phase behavior of soft rodlike particles

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Science China Chemistry 2011年第9期54卷 1474-1483页

作者： li ZhanWei liu YuHua liu YingTao lu zhongyuan State Key Laboratory of Theoretical and Computational Chemistry Institute of Theoretical Chemistry Jilin University Changchunl 30021 China State Key Laboratory of Polymer Chemistry and Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China

A novel mesoscopic simulation model is proposed to study the liquid crystal phase behavior of the anisotropic rodlike particles with a soft repulsive interaction,which possesses a modified anisotropic conservative force type used in dissipative particle *** influences of the repulsion strength and the particle shape on the phase behavior of soft rodlike particles are *** the simulations,we observe the formation of the nematic phase and smectic-A phase from the initially isotropic ***,we find that shorter soft rodlike particles with anisotropic repulsive interactions can form a stable smectic-B *** results demonstrate that the soft anisotropic purely-repulsive potential between the rodlike particles can reflect the interaction nature between soft rodlike particles in a simple way and is sufficient to produce a range of ordered LC-like mesophases.

关键词： computer simulation soft rodlike particle phase behavior LC-like mesophase

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深层油藏传热模型及油柱高度计算

西南石油大学学报（自然科学版） 2024年第4期46卷 107-114页

作者：刘勇袁晓满卢忠沅叶思杰李晓龙中国石油塔里木油田公司哈得采油气管理区新疆库尔勒841000

深层油藏储层埋藏深、厚度大,油井难以钻穿整个油层。针对深层油藏油柱高度的计算问题,考虑在油井投产后从油水界面到井底的垂向传热过程,建立了一个深层油藏传热模型。利用变量代换、分离变量及傅里叶变换等方法对模型进行了求解,获得... 详细信息

深层油藏储层埋藏深、厚度大,油井难以钻穿整个油层。针对深层油藏油柱高度的计算问题,考虑在油井投产后从油水界面到井底的垂向传热过程,建立了一个深层油藏传热模型。利用变量代换、分离变量及傅里叶变换等方法对模型进行了求解,获得了油藏油柱高度计算式。只需利用油井投产前和投产一段时间后的井底温度数据,便可计算油柱高度。以塔里木盆地某深层油藏某油井为例,展示了油柱高度的计算与应用。同时,利用该井的基础数据,代入传热模型,模拟计算了油井投产后不同时间下不同油层位置的温度值和温度梯度值,进而绘制了不同生产时间下储层温度分布曲线和不同储层位置处的储层温度动态变化曲线,结果表明油井投产后的储层温度分布呈非线性的动态变化特征。建立的传热模型可为深层油藏油柱高度的计算提供技术支持。

关键词：深层油藏油柱高度传热模型温度分布温度梯度

New progress of Double Star-Cluster joint exploration and study

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Science China(Technological Sciences) 2008年第10期51卷 1565-1579页

作者： liu zhenxing PU ZuYin CAO JinBin SHEN Chao lu li ZHANG lingQian Center for Space Science and Applied Research Chinese Academy of SciencesBeijing 100080China School of Earth and Space Science Peking UniversityBeijing 100080China

The magnetic reconnection of magnetosphere and the magnetospheric space storms (including magnetospheric substorm, magnetic storm, magnetospheric particle storm) has long been one of the most challenging subjects in the so-lar-terrestrial physics. The reconnection mechanism and global triggering process of the magnetospheric space storms are still unclear up to now. Based on the Double Star Program (DSP) and Cluster joint measurements, we have observed the solar wind density hole, the component magnetic field reconnection in the magnetopause, the structures of magnetic storm ring current, global and multi-scale driven and triggering processes of magnetospheric substorm. In this paper we will briefly introduce these results.

关键词： solar wind magnetic reconnection magnetospheric substorm magnetic storm

Tetraphenylethylene-conjugated polycation covered iron oxide nanoparticles for magnetic resonance/optical dual-mode imaging

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Regenerative Biomaterials 2021年第3期8卷 124-132页

作者： li Yang Shengxiang Fu li liu zhongyuan Cai Chunchao Xia Bin Song Qiyong Gong Zhiyun lu Hua Ai National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610065China Department of Radiology West China HospitalSichuan UniversityChengdu 610041China Huaxi MR Research Center(HMRRC) Department of RadiologyWest China Hospital of Sichuan UniversityChengduChina Psychoradiology Research Unit of Chinese Academy of Medical Sciences Sichuan UniversityChengduChina Key Laboratory of Green Chemistry and Technology(Ministry of Education) College of ChemistrySichuan UniversityChengdu 610065China

Magnetic resonance(MR)/optical dual-mode imaging with high sensitivity and high tissue resolution have attracted many attentions in biomedical *** avert aggregation-caused quenching of conventional fluorescence chromophores,an aggregation-induced emission molecule tetraphenylethylene(TPE)-conjugated amphiphilic polyethylenimine(PEI)covered superparamagnetic iron oxide(Alkyl-PEI-LAC-TPE/SPIO nanocomposites)was prepared as an MR/optical dual-mode ***-PEI-LAC-TPE/SPIO nanocomposites exhibited good fluorescence property and presented higher T2 relaxivity(352 Fe mM1s1)than a commercial contrast agent Feridex(120 Fe mM1s1)at 1.5 *** alkylation degree of Alkyl-PEI-LAC-TPE effects the restriction of intramolecular rotation process of *** alkane chain grafting ratio aggravated the stack of TPE,increasing the fluorescence lifetime of Alkyl-PEI-LAC-TPE/SPIO ***-PEI-LAC-TPE/SPIO nanocomposites can effectively labelled HeLa cells and resulted in high fluorescence intensity and excellent MR imaging *** an MR/optical imaging probe,Alkyl-PEI-LAC-TPE/SPIO nanocomposites may be used in biomedical imaging for certain applications.

关键词： magnetic resonance imaging optical imaging superparamagnetic iron oxide aggregation-induced emission dual-mode imaging

基于相依失效的“空-基-地”编队可靠性分析

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兵器装备工程学报 2024年第7期45卷 19-27页

作者：李耀华刘肖迪路向阳王洁中国民航大学交通科学与工程学院天津300300 中原工学院电子信息学院郑州451191

针对大规模多域无人设备之间难以进行可靠性分析的问题,根据实际“空-基-地”分布式协同编队特征,提出了一种基于多域无人平台运作规则与层网络间逻辑连接失效关系的空基地集群编队可靠性分析算法。用空中网络、通信网络、地面网络组成... 详细信息

针对大规模多域无人设备之间难以进行可靠性分析的问题,根据实际“空-基-地”分布式协同编队特征,提出了一种基于多域无人平台运作规则与层网络间逻辑连接失效关系的空基地集群编队可靠性分析算法。用空中网络、通信网络、地面网络组成的3层轻量化方格拓扑结构代替现实中的集群,在综合考虑随机攻击、蓄意攻击以及区域失效关系、关联失效关系、级联失效关系等依赖关系的条件下设计算法,以网络中最大连通子图为可靠性测度,进行不同编队状态及编队形式下的网络可靠性分析。最后与标准仿真平台进行对比,试验结果验证了算法的可行性、快速性以及资源占用率小等优势。该研究为提升多域无人平台协同编队时的可靠性及相关的防控策略的研究提供了研究基础。

关键词：协同编队网络可靠性相依网络相依失效多异构系统