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The Combination of Achnatherum inebrians Extracts and Soil Microorganisms Inhibited Seed Germination and Seedling Growth in Elymus nutans

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Phyton-International Journal of Experimental Botany 2024年第3期93卷 567-580页

作者： Rui Zhang Taixiang chen zhenjiang chen Hao chen Xuekai Wei Malik Kamran Chunjie Li State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems Key Laboratory of Animal Husbandry InnovationMinistry of Agriculture and Rural AffairsEngineering Research Center of Grassland AgricultureMinistry of EducationWest Gansu Province Prataculture Technology Innovation CenterCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou730020China Center for Grassland Research National Forestry and Grassland AdministrationCaFBeijing100091China

In a greenhouse experiment,the effects of soil microorganisms and extracts of Achnatherum inebrians on the seed germination and seedling growth of Elymus nutans were *** results showed that both the extracts from aboveground and belowground parts of *** signiﬁcantly inhibited the germination rate,germination potential,germination index,vigor index,seedling height,root length,and fresh weight of ***,but increased malondialdehyde content,catalase,peroxidase and superoxide dismutase activity of *** seedlings(p<0.05).The allelopathy of aqueous extracts of the aboveground parts of *** was stronger than that of the *** extracts of the aboveground parts of *** decreased seed germination rate,germination potential,germination index,vigor index,seedling length,root length,and seedling fresh weight by 10.45%-74.63%,24.18%-32.50%,19.03%-73.36%,37.83%-88.41%,21.42%-53.14%,2.65%-40.21%,and 20.45%-61.36%,respectively,and malondialdehyde content,peroxidase,catalase,and superoxide dismutase activity increased by 8.09%-62.24%,27.83%-86.47%,22.90%-93.17%,and 11.15%-75.91%,*** above indexes were higher in live soil than in sterilized *** microorganisms increased the allelopathy of *** seed germination rate,germination potential,germination index,vigor index,seedling length,and seedling fresh weight of *** planted in live soil decreased by 8.22%-48.48%,10.00%-51.85%,8.19%-53.26%,16.43%-60.03%,12.91%-28.81%,and 9.09%-22.86%compared with sterilized soil,*** content,peroxidase,catalase,and superoxide dismutase activity of *** planted in live soil increased by 53.91%-81.06%,15.71%-57.34%,33.33%-86.31%,and 9.78%-52.51%compared with sterilized soil,*** existence of soil microorganisms enhanced the allelopathy of the secondary metabolites of ***.A combination of microorganisms and aqueous extracts from the aboveground parts of *** had the s

关键词： Achnatherum inebrians water immersion liquid aqueous leachate precipitate allelopathy Elymus nutans soil microorganisms

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Reconfigurable physical unclonable cryptographic primitives based on current-induced nanomagnets switching

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Science China(Information Sciences) 2022年第2期65卷 188-196页

作者： Shuai ZHANG Jian ZHANG Shihao LI Yaoyuan WANG zhenjiang chen Jeongmin HONG Long YOU Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information Huazhong University of Science and Technology

Hardware security primitives that preserve secrets are playing a crucial role in the Internet-ofThings(Io T) era. Existing physical unclonable function(PUF) instantiations, exploiting static randomness,generate challenge-response pairings(CRPs) to produce unique security keys that can be used to authenticate devices linked to the Io T. Reconfigurable PUFs(RPUFs) with dynamically refreshable CRPs can enhance the security and robustness of conventional PUFs. The in-plane current-driven perpendicular polarized nanomagnet switching via spin-orbit torque(SOT) possesses great potential for application to memory and logic, as the write-current path is separate from the read-current path, which naturally resolves the write-read interference. However, the stochastic switching of perpendicular magnetization, without an additional symmetry-breaking field, would significantly hinder the technological viability of commercial implementations. Here, we report an initialization-free physical RPUF implemented by SOT-induced stochastic switching of perpendicularly magnetized Ta/Co Fe B/Mg O nanodevices. Using a 15×15 nanomagnet array, we experimentally demonstrate a security primitive that offers a near-ideal 50% uniqueness over 100 reconfiguration cycles, as well as a low correlation coefficient between every two reconfiguration cycles. Our results show that current-induced nanomagnets switching paves the way for developing highly reliable and energy-efficient reconfigurable cryptographic primitives with a smaller footprint.

关键词： reconfigurable physical unclonable function spin-orbit torque cryptographic primitive spintronics nanomagnet

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深部大采高工作面沿空留巷围岩控制技术

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煤矿安全 2024年第7期55卷 118-126页

作者：张俊虎陈振江高贤成张磊李建华邓鹏江华晋焦煤有限责任公司沙曲二号煤矿山西吕梁033399 中煤科工集团沈阳研究院有限公司辽宁抚顺113122 煤矿安全技术国家重点实验室辽宁抚顺113122

综采工作面沿空留巷经历多次采动影响,矿压显现较为强烈,围岩变形量大,极易造成巷道围岩失稳。为了研究大采高工作面沿空留巷围岩控制问题,以某矿1313工作面留巷为研究背景,通过理论分析、数值模拟、现场实践等方法,分析沿空留巷围岩运... 详细信息

综采工作面沿空留巷经历多次采动影响,矿压显现较为强烈,围岩变形量大,极易造成巷道围岩失稳。为了研究大采高工作面沿空留巷围岩控制问题,以某矿1313工作面留巷为研究背景,通过理论分析、数值模拟、现场实践等方法,分析沿空留巷围岩运动特征,提出“支-卸平衡”巷道围岩协同控制技术;加强了巷道围岩支护强度,改善了巷道围岩的应力环境。通过现场工程实践验证,1313工作面留巷的巷道顶底板变形量为246 mm,两帮变形量为442 mm,巷道表面没有明显的鼓出现象,巷道围岩变形量满足作业规程的相关规定。

关键词：巷道围岩失稳大采高工作面沿空留巷协同支护围岩控制

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Stable multi-electron reaction stimulated by W doping VS_(4)for enhancing magnesium storage performance

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Journal of Energy Chemistry 2024年第2期89卷 89-98,I0004页

作者： Yuxin Tian Jiankang chen Guofeng Wang Bing Sun Alan Meng Lei Wang Guicun Li Jianfeng Huang Shiqi Ding zhenjiang Li College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOEShandong Key Laboratory of Biochemical AnalysisCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongChina School of Material Science and Engineering International S&T Cooperation Foundation of Shaanxi ProvinceXi’an Key Laboratory of Green Manufacture of Ceramic MaterialsShaanxi University of Science and TechnologyXi’an 710021ShaanxiChina

Rechargeable magnesium batteries(RMBs)hold promise for offering higher volumetric energy density and safety features,attracting increasing research interest as the next post lithium-ion *** high performance cathode material by inducing multi-electron reaction process as well as maintaining structural stability is the key to the development and application of ***,multielectron reaction occurred in VS_(4)by simple W doping strategy.W doping induces valence of partial V as V^(2+)and V^(3+)in VS_(4)structure,and then stimulates electrochemical reaction involving multi-electrons in 0.5%*** flower-like microsphere morphology as well as rich S vacancies is also modulated by W doping to neutralize structure change in such multi-electron reaction *** fabricated 0.5%W-V-S delivers higher specific capacity(149.3 m A h g^(-1)at 50 m A g^(-1),which is 1.6 times higher than that of VS_(4)),superior rate capability(76 mA h g^(-1)at 1000 mA g^(-1)),and stable cycling performance(1500cycles with capacity retention ratio of 93.8%).Besides that,pesudocapaticance-like contribution analysis as well as galvanostatic intermittent titration technique(GITT)further confirms the enhanced Mg^(2+)storage kinetics during such multi-electron involved electrochemical reaction *** discovery provides new insights into the designing of multi-electron reaction process in cathode as well as neutralizing structural change during such reaction for realizing superior electrochemical performance in energy storage devices.

关键词： Multi-electron reaction W doping Stable structure Cathode Rechargeable magnesium batteries

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Design,synthesis and biological evaluation of fluorescent derivatives of ursolic acid in living cells

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Chinese Chemical Letters 2024年第5期35卷 287-289页

作者： Wenyi Mei Lijuan Xie Xiaodong Zhang Cunjian Shi Fengzhi Wang Qiqi Fu zhenjiang Zhao Honglin Li Yufang Xu Zhuo chen Shanghai Key Laboratory of New Drug Design State Key Laboratory of Bioreactor EngineeringSchool of PharmacyEast China University of Science and TechnologyShanghai 200237China Innovation Center for AI and Drug Discovery East China Normal UniversityShanghai 200062China Lingang Laboratory Shanghai 200031China

Ursolic acid(UA)is a naturally occurring ursane triterpenoid,which exhibits a wide range of unique biological *** clarify its mechanism of action(MOA),a series of fluorescent derivatives of UA(5a-c)were designed and synthesized by conjugation with 7-nitrobenzo-2-oxa-1,3-diazole(NBD)*** them,5c exhibited similar anti-proliferative activity with UA against HCT116 cells(half maximal inhibitory concentration(IC_(50))=9.21±0.50μmol/L).Cell imaging experiment indicated that 5c was rapidly taken up in HCT116 cells in a dose and time-dependent ***,5c was found to localize in endoplasmic reticulum(ER),lysosomes,and mitochondria,but not in nucleus of HCT116 cells by confocal microscopy *** MOA proved that UA induced autophagy with a unique intracellular distribution mechanism involving ER and *** all,our work provides new clues for revealing the molecular mechanism of UA as an antitumor agent.

关键词： Pentacyclic triterpenoid Ursolic acid Fluorescent derivatives Autophagy Apoptosis

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到岸价格模式生鲜供应链需求信息共享与激励

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系统工程理论与实践 2023年第4期43卷 1172-1191页

作者：但斌陈振江刘墨林马崧萱重庆大学经济与工商管理学院重庆400044 重庆大学现代物流重庆市重点实验室重庆400044 重庆工商大学管理学院重庆400067

针对到岸价格商务模式生鲜供应链面临的市场需求风险,考虑销售商拥有需求预测信息并可决策是否向供应商共享,构建动态博弈模型分析了该供应链中的信息共享策略,设计了相应的需求信息共享激励契约.研究表明:需求信息共享利于供应商根据... 详细信息

针对到岸价格商务模式生鲜供应链面临的市场需求风险,考虑销售商拥有需求预测信息并可决策是否向供应商共享,构建动态博弈模型分析了该供应链中的信息共享策略,设计了相应的需求信息共享激励契约.研究表明:需求信息共享利于供应商根据市场需求波动合理调整保鲜努力和产品供应量,缓解供应商和销售商面临的产品滞销与缺货风险;供应商冒险策略下,只有当新鲜度弹性较高时销售商才愿意共享需求信息,而在供应商保守策略下,当新鲜度弹性较低时,若市场波动不太低或信息精度较高,销售商也会主动进行信息共享;一定条件下,需求信息共享能够提高供应链整体绩效,通过转移支付契约能够激励销售商信息共享,实现供应链各成员利润的帕累托改善.

关键词：生鲜供应链到岸价格模式需求不确定信息共享激励契约

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αExtractor: a system for automatic extraction of chemical information from biomedical literature

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Science China(Life Sciences) 2024年第3期67卷 618-621页

作者： Jiacheng Xiong Xiaohong Liu Zhaojun Li Hongzhong Xiao Guangchao Wang zhenjiang Niu Chaoyuan Fei Feisheng Zhong Gang Wang Wei Zhang Zunyun Fu Zhiguo Liu Kaixian chen Hualiang Jiang Mingyue Zheng Drug Discovery and Design Center State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China University of Chinese Academy of Sciences Beijing 100049China AI Department Suzhou Alphama Biotechnology Co.Ltd.Suzhou 215125China College of Computer and Information Engineering Dezhou UniversityDezhou 253023China

Dear Editor,Great progress has been made using artificial intelligence(AI) techniques in learning knowledge from biomedical databases in recent years, revolutionizing the study of many fields, such as protein structure prediction and protein design(Madani et al., 2023). However, there is massive biomedical knowledge not curated in the form of structured data but hidden in primary scientific literature.

关键词： has such knowledge

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H-plasma In-situ Cleaning and Lattice Damage Elimination

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Journal of Materials Science & Technology 1993年第2期9卷 133-135页

作者： chenguang GONG+ Fuchu SHEN Biguang YE Jian chen, zhenjiang University, Hangzhou, 310027, China

This article discusses the silicon lattice damage induced during H-plasma in-situ cleaning and finds that the substrate temperature, plasma power, processing time, all affect the extent of the distortion of the surfac... 详细信息

关键词： H-plasma cleaning lattice damage epitaxial Si film

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基于Web of Science与CNKI数据库的野大麦文献计量分析

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草业科学 2022年第4期39卷 819-828页

作者：翟纡润陈振江李春杰兰州大学草地农业生态系统国家重点实验室/兰州大学农业农村部草牧业创新重点实验室/兰州大学草地农业教育部工程研究中心/甘肃省西部草业技术创新中心/兰州大学草地微生物研究中心/兰州大学草地农业科技学院甘肃兰州730020 中国林业科学研究院国家林业和草原局草原研究中心北京100091

野大麦具有抗逆性强、适应性广、营养价值高等特点,在粮食作物生产、畜牧业发展和环境治理等方面有巨大的潜力。为了解目前国内外对野大麦的研究现状及发展方向,本文基于Web of Science核心合集数据库(WOS)与中国知网数据库(CNKI)数据... 详细信息

野大麦具有抗逆性强、适应性广、营养价值高等特点,在粮食作物生产、畜牧业发展和环境治理等方面有巨大的潜力。为了解目前国内外对野大麦的研究现状及发展方向,本文基于Web of Science核心合集数据库(WOS)与中国知网数据库(CNKI)数据库利用文献计量学方法,对野大麦近30年的年度发文量、所属机构、国家间合作关系、被引率、关键词及文献来源等方面进行梳理。结果表明:国内外关于野大麦的研究有很多,但因地理文化差异,我国学者对野大麦的研究绝大多数为短芒大麦草(Hordeum brevisubulatum),国外学者则主要研究钝稃野大麦(***)及其变种。近30年来,两个数据库中收录的关于野大麦的文章数量相差不多,均呈稳步上升状态,在2019年达到顶峰。中国、以色列、德国的发文量位于世界前列,以色列、德国、美国的合作贡献最大,其中海法大学(University of Haifa)和内蒙古农业大学的发文量最多。国内外的期刊中《草地学报》和《Theoretical and Applied Genetics》的载文量最多;以“野大麦”、“wild barley”和“barley”为关键词出现的频率较高,“抗性(resistance)”、“胁迫(stress)”和“基因(gene)”等次之,这从一定程度上反映出目前野大麦的研究热点,也为兼顾野大麦的饲用价值、食用价值及生态价值提供了理论支撑。

关键词： Web of science CNKI 野大麦短芒大麦草钝稃野大麦文献计量分析

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上转换纳米材料:机制、合成和生物应用

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中国稀土学报 2022年第4期40卷 533-549页

作者：陈振江赵谊华胡睿林桂淼屈军乐刘丽炜深圳大学物理与光电工程学院光电子器件与系统教育部\广东省重点实验室广东深圳518060 深圳大学医学部公共卫生学院广东深圳518073

上转换纳米粒子具有独特的反斯托克斯发光特性,可以将长波长的光转化为短波长的光。由于其出色的光物理特性,如较大的斯托克斯位移、较低的自发荧光背景、长时间稳定的发光、抗光漂白以及较高的生物穿透深度等,上转换纳米材料被广泛应... 详细信息

上转换纳米粒子具有独特的反斯托克斯发光特性,可以将长波长的光转化为短波长的光。由于其出色的光物理特性,如较大的斯托克斯位移、较低的自发荧光背景、长时间稳定的发光、抗光漂白以及较高的生物穿透深度等,上转换纳米材料被广泛应用于生物成像、药物治疗、生物检测等领域。本文首先介绍了上转换纳米材料的发光机制和合成方法,然后总结了上转换纳米材料在生物成像、药物治疗、生物检测领域的最新应用,并介绍了课题组近年来在这些领域取得的进展。最后,展望了上转换纳米材料在生物医学领域的应用和发展趋势。

关键词：上转换发光纳米材料生物成像药物治疗生物检测稀土

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