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EPSPS regulates cell elongation by disrupting the balance of lignin and flavonoid biosynthesis in cotton

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Journal of Integrative Agriculture 2024年第10期23卷 3437-3456页

作者： Qingdi Yan Wei hu Chenxu Gao Lan Yang Jiaxian Yang Renju Liu Masum Billah Yongjun Lin Ji Liu Pengfei miao Zhaoen Yang Fuguang Li Wenqiang Qin State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization/Institute of Cotton Research Chinese Academy ofAgricultural SciencesAnyang 455000China National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research Huazhong AgriculturalUniversityWuhan 430070China State Key Laboratory of Cotton Bio-breeding and Integrated Utilization/Zhengzhou University Zhengzhou 450066China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572025China

EPSPS is a key gene in the shikimic acid synthesis pathway that has been widely used in breeding crops with herbicide ***,its role in regulating cell elongation is poorly *** the overexpression of EPSPS genes,we generated lines resistant to glyphosate that exhibit an unexpected dwarf phenotype.A representative line,DHR1,exhibits a stable dwarf phenotype throughout its entire growth *** for plant height,the other agronomic traits of DHR1 are similar to its transgenic explants *** section observations showed that DHR1 internodes are shortened due to reduced elongation and division of the internode *** hormones confirmed that DHR1 is not a classical brassinolide(BR)-or gibberellin(GA)-related dwarfing *** analysis and fine mapping confirmed that the EPSPS gene is the causal gene for dwarfism,and the phenotype can be inherited in different *** and metabolome analyses showed that genes associated with the phenylpropanoid synthesis pathway are enriched in DHR1 compared with *** metabolites are enriched in DHR1,whereas lignin metabolites are *** enhancement of flavonoids likely results in differential expression of auxin signal pathway genes and alters the auxin response,subsequently affecting cell *** study provides a new strategy for generating dwarfs and will accelerate advancements in light simplification in the cultivation and mechanized harvesting of cotton.

关键词： EPSPS cotton T-DNA dwarfism herbicide resistance

Epidemiology and current management of cardiovascular disease in China

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Journal of Geriatric Cardiology 2024年第4期21卷 387-406页

作者： Sheng-Shou hu the Writing Committee of the Report on Cardiovascular Health and Dis-eases in China Fuwai Hospital National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

The Annual Report on Cardiovascular Health and Diseases in China(2022) intricate landscape of cardiovascular health in China. This is the fourth section of the report with a specific focus on epidemiology and current management of cardiovascular disease(CVD) in China. This section of the report highlights the epidemiological trends of CVD in China. It reveal a concerning rise in prevalence, with approximately 330 million affected individuals, including significant numbers with stroke, coronary artery disease(CAD), heart failure, and other conditions. CVD stands as the primary cause of mortality among both urban and rural populations, accounting for nearly half of all deaths in 2020. Mortality rates are notably higher in rural areas compared to urban centers since 2009. While age-standardized mortality rates have decreased, the absolute number of CVD deaths has increased, primarily due to population aging. Ischemic heart disease, hemorrhagic and ischemic strokes are the leading causes of CVD-related deaths. Notably, the burden of atherosclerotic cardiovascular disease has risen substantially, with atherosclerotic cardiovascular disease-related deaths increasing from 1990 to 2016. The incidence of ischemic stroke and ischemic heart disease has shown similar increasing trends over the past three decades. CAD mortality, particularly acute myocardial infarction, has been on the rise, with higher mortality rates observed in rural areas since 2016. The prevalence of CAD has increased significantly, with over 11 million patients identified in 2013. Studies assessing hospital performance in managing acute coronary syndrome reveal gaps in adherence to guideline-recommended strategies, with disparities in care quality across hospitals. However, initiatives like the China Patient-centered Evaluative Assessment of Cardiac Events(PEACE)-Retrospective AMI Study and the Improving Care for Cardiovascular Disease in China-Acute Coronary Syndrome(CCC-ACS) project aim to improve patien

关键词： epidemiology landscape deaths

基于双特征和松弛边界的随机森林进行异常点检测

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计算机应用 2019年第4期39卷 956-962页

作者：胡淼王开军福建师范大学数学与信息学院福州350117 福建师范大学数字福建环境监测物联网实验室福州350117

针对现有基于随机森林的异常检测算法性能不高的问题,提出一种结合双特征和松弛边界的随机森林算法用于异常点检测。首先,在只使用正常类数据构建随机森林的分类决策树过程中,在二叉决策树的每个节点里记录两个特征的取值范围(每个特征... 详细信息

针对现有基于随机森林的异常检测算法性能不高的问题,提出一种结合双特征和松弛边界的随机森林算法用于异常点检测。首先,在只使用正常类数据构建随机森林的分类决策树过程中,在二叉决策树的每个节点里记录两个特征的取值范围(每个特征对应一个值域),以此双特征值域作为异常点判断的依据。然后,在进行异常检测时,当某样本不满足决策树节点中的双特征值域时,该样本被标记为候选异常类;否则,该样本进入决策树的下层树节点继续作特征值域的比较,若无下层节点则被标记为候选正常类。最后,由随机森林算法中的判别机制决定该样本的类别。在5个UCI数据集上进行的异常点检测实验结果表明,所提方法比现有的异常检测随机森林算法性能更好,其综合性能与孤立森林(iForest)和一类支持向量机(OCSVM)方法相当或更好,且稳定于较高水平。

关键词：异常点检测随机森林双特征过滤松弛边界

Design,preparation,and characterization of a novel ZnO/CuO/Al energetic diode with dual functionality:Logic and destruction

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Defence Technology（防务技术） 2024年第4期34卷 57-68页

作者： Jialu Yang Jiaheng hu Yinghua Ye Jianbing Xu Yan hu Ruiqi Shen School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China Micro-Nano Energetic Devices Key Laboratory of MIIT Nanjing 210094China Institute of Space Propulsion Nanjing University of Science and TechnologyNanjing 210094China

Self-destructing chips have promising applications for securing *** paper proposes a new concept of energetic diodes for the first time,which can be used for self-destructive chips.A simple two-step electrochemical deposition method is used to prepare ZnO/CuO/Al energetic diode,in which N-type ZnO and P-type CuO are constricted to a PN *** paper comprehensively discusses the material properties,morphology,semiconductor characteristics,and exploding performances of the energetic *** results show that the energetic diode has typical rectification with a turn-on voltage of about 1.78 V and a reverse leakage current of about 3×10^(-4)*** a constant voltage of 70 V loads to the energetic diode in the forward direction for about 0.14 s or 55 V loads in the reverse direction for about 0.17 s,the loaded power can excite the energetic diode exploding and the current rises to about100 *** to the unique performance of the energetic diode,it has a double function of rectification and *** energetic diode can be used as a logic element in the normal chip to complete the regular operation,and it can release energy to destroy the chip accurately.

关键词： Energetic diode ZnO—CuO—Al thermite ZnO/CuO PN junction Electrical explosion performance Self-destructing chips

Fracture mechanism of inclusions in thick plate center under tensile loading

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Journal of Iron and Steel Research International 2024年第5期31卷 1196-1209页

作者： Lei hu Li-qin Zhang Feng hu Guo-hong Zhang Kuan Zheng Collaborative Innovation Center for Advanced Steels Wuhan University of Science and TechnologyWuhan430081HubeiChina Department of Applied Physics Wuhan University of Science and TechnologyWuhan430081HubeiChina Analysis and Testing Center Wuhan University of Science and TechnologyWuhan430081HubeiChina

Segregation of solute atoms in the center of thick plates of the tempered steel can cause an inhomogeneous structural transformation and generate micron-sized inclusions,which leads to lamellar tearing of thick plate and decreases the plasticity and *** formation and fragmentation mechanisms of micron-sized inclusions,like MnS and(Nb,Ti)C,in the center of thick plates were investigated by using thermodynamic calculations,finite element simulations,and electron backscatter diffraction characterization *** results show that micron-sized inclusions nucleate and grow in the liquid phase,and under tensile loading,they exhibit three fragmentation *** local stress during the fragmentation of inclusions is lower than the critical fracture stress of adjacent grains,and phase boundaries can effectively impede crack propagation into the *** existence of a low proportion of high-angle grain boundaries(58.1%)and high Kernel average misorientation value(0.534°)in the segregation band promotes inclusions fragmentation and crack *** difference in crack initiation and propagation direction caused by the morphology of inclusions and physical properties,as well as different matrix arrest abilities,is the main reasons for the diversity of inclusion fragmentation.

关键词： Thick plate Inclusion Finite element simulation Critical fracture stress Fracture mechanism

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马来酸酐悬浮固相接枝聚丙烯

合成树脂及塑料 2006年第2期23卷 32-35页

作者：王正洲刘晓峰胡淼中国科学技术大学火灾科学国家重点实验室安徽合肥230026

采用悬浮固相法制备出马来酸酐接枝聚丙烯。研究了单体用量、界面剂种类和用量、助交联剂、体系 pH值等因素对马来酸酐接枝率的影响。实验发现,随着单体用量增加,接枝率虽然逐渐增大,但单体接枝效率显著下降。界面剂的添加量对接枝率也... 详细信息

采用悬浮固相法制备出马来酸酐接枝聚丙烯。研究了单体用量、界面剂种类和用量、助交联剂、体系 pH值等因素对马来酸酐接枝率的影响。实验发现,随着单体用量增加,接枝率虽然逐渐增大,但单体接枝效率显著下降。界面剂的添加量对接枝率也有较大影响,适宜的添加量可以提高接枝率,采用二甲苯作界面剂时,其用量比甲苯少。添加适量的助交联剂有助于提高接枝率。另外,体系pH值的改变也会影响接枝率。

关键词：聚丙烯悬浮固相接枝马来酸酐接枝率

Rational modulation of electronic structure in PtAuCuNi alloys boosts efficient electrocatalytic ethanol oxidation assisted with energy-saving hydrogen evolution

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Journal of Energy Chemistry 2024年第6期93卷 557-567,I0014页

作者： hu Yao Yinan Zheng Xin Yu Songjie hu Baolian Su Xiaohui Guo Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education The College of Chemistry and Materials ScienceNorthwest UniversityXi’an 710069ShaanxiChina Department of Inorganic Chemistry University of NamurBruxellesB-5000 NamurBelgium

Compared to conventional electrocatalytic water splitting,electrocatalytic ethanol oxidation reaction(EOR)along with hydrogen production is considered a more energy-efficient ***,we prepared a type of novel quaternary alloy catalyst(PtAuCuNi@NF)that exhibits excellent activity for EOR(0.215 V at 10 mA cm^(-2))and hydrogen evolution reaction(HER)(7 mV at 10 mA cm^(-2)).Experimental results demonstrated that both Cu and Ni modulated the electronic environment around Pt and *** electron-rich active center facilitates the rapid adsorption and dissociation of reactants and intermediates for both EOR and ***,in the ethanol-assisted overall water splitting(E-OWS),a current density of 10 mA cm^(-2)was achieved at 0.28 ***,an advanced acid-base self-powered system(A-Bsps)that can achieve a self-powered voltage of 0.59 V was ***,the self-driven hydrogen production with zero external power supply was realized by integrating A-Bsps with the E-OWS *** interesting results can provide a feasible strategy for designing and developing advanced nanoalloy-based materials for clean energy integration and use in various fields.

关键词： Pt-based alloy Electronic structure Ethanol oxidation Self-powered system Overall water splitting

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编组站停车防溜设备简统化探讨

铁道货运 2018年第1期36卷 18-23页

作者：胡淼中国铁道科学研究院通信信号研究所北京100081

简统化可以提高铁路编组站停车防溜设备的通用性,规范厂家生产行为,降低现场维护维修成本,加强现场停车防溜设备管理。在概述停车防溜设备前期调研工作的基础上,总结现有设备的结构特点及性能,对比分析其异同,结合全局性简统化和分类性... 详细信息

简统化可以提高铁路编组站停车防溜设备的通用性,规范厂家生产行为,降低现场维护维修成本,加强现场停车防溜设备管理。在概述停车防溜设备前期调研工作的基础上,总结现有设备的结构特点及性能,对比分析其异同,结合全局性简统化和分类性简统化概念,从基本轨、制动轨、节距、接口和制动时间等方面提出全局性简统化相关建议,从安装位置、动力系统和制动原理等方面提出分类性简统化相关建议,对设备生产和现场管理具有重要的指导意义。

关键词：铁路编组站停车防溜制动力强度简统化调研

Phase diagram of muonium hydride:the significant effect of dimensionality

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Communications in Theoretical Physics 2024年第2期76卷 182-187页

作者： Jieru hu Massimo Boninsegni Department of Physics University of Alberta State Key Laboratory of Precision Spectroscopy East China Normal University

We carry out a theoretical investigation of the low-temperature phase diagram of muonium hydride in two dimensions,using numerical *** is shown that the phase diagram of this substance is qualitatively different in two and three ***,while in three dimensions it is essentially identical to that of parahydrogen,i.e.,only displaying a single(crystalline)*** two dimensions it is very similar to that of^(4)He,with an equilibrium liquid phase that turns superfluid at a temperature as high as~2.2 K,and crystallizes under applied *** is a well-described case of a continuous-space condensed matter system whose ground state equilibrium phase is qualitatively altered by dimensional reduction.

关键词： quantum fuids and solids quantum Monte Carlo phase diagrams