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Sugars promote graft union development in the heterograft of cucumber onto pumpkin

Horticulture Research 2021年第1期8卷 2198-2214页

作者： Li Miao Qing Li Tian-shu sun Sen Chai Changlin Wang Longqiang Bai Mintao sun Yansu Li Xing Qin Zhonghua Zhang Xianchang Yu Institute of Vegetables and Flowers Chinese Academy of Agriculture SciencesBeijing 100081China College of Horticulture Qingdao Agricultural UniversityQingdao 266109China College of Horticulture Shanxi Agricultural UniversityTaiguJinzhongShanxi 030801China

The use of heterografts is widely applied for the production of several important commercial crops,but the molecular mechanism of graft union formation remains poorly ***,cucumber grafted onto pumpkin was used to study graft union development,and genome-wide tempo-spatial gene expression at the graft interface was comprehensively *** analysis suggested that resumption of the rootstock growth occurred after both phloem and xylem reconnection,and the scion showed evident callus production compared with the rootstock 3 days after ***,transcriptome data revealed specific responses between the scion and rootstock in the expression of genes related to cambium development,the cell cycle,and sugar metabolism during both vascular reconnection and healing,indicating distinct ***,lower levels of sugars and significantly changed sugar enzyme activities at the graft junction were observed during vascular ***,we found that the healing process of grafted etiolated seedlings was significantly delayed,and graft success,xylem reconnection,and the growth of grafted plants were enhanced by exogenous *** demonstrates that graft union formation requires the correct sugar ***,we also found that graft union formation was delayed with a lower energy charge by the target of rapamycin(TOR)inhibitor AZD-8055,and xylem reconnection and the growth of grafted plants were enhanced under AZD-8055 with exogenous glucose *** together,our results reveal that sugars play a positive role in graft union formation by promoting the growth of cucumber/pumpkin and provide useful information for understanding graft union healing and the application of heterografting in the future.

关键词： healing metabolism union

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Low- and Mid-High Latitude Components of the East Asian Winter Monsoon and Their Reflecting Variations in Winter Climate over Eastern China

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Atmospheric and Oceanic Science Letters 2012年第3期5卷 195-200页

作者： LIU Ge JI Li-Ren sun shu-Qing XIN Yu-Fei Chinese Academy of Meteorological Sciences （CAMS） Beijing 100081 China The State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmos-pheric Physics Chinese Academy of Sciences Beijing 100029 China

The present study defines a low-latitude component (regionally averaged winter 1000-hPa V-winds over 10 25°N, 105 135°E) and a mid-high-latitude component (regionally averaged winter 1000-hPa V-winds over 30 50°N, 110 125°E) of the East Asian winter monsoon (EAWM), which are denoted as EAWM-L and EAWM-M, respectively. The study examines the variation characteristics, reflecting variations in winter climate over eastern China, and associated atmospheric circulations corresponding to the two components. The main results are as follows: 1) the EAWM-L and EAWM-M have consistent variation in some years but opposite variations in other years; 2) the EAWM-M index mainly reflects the extensive temperature variability over eastern China, while the EAWM-L index better reflects the variation in winter precipitation over most parts of eastern China; and 3) corresponding to the variation in the EAWM-M index, anomalous winds over the mid-high latitudes of East Asia modulate the southward invasion of cold air from the high latitudes and accordingly affect temperatures over eastern China. In combination with the variation in the EAWM-L index, anomalous low-latitudinal winds regulate the water vapor transport from tropical oceans to eastern China, resulting in anomalous winter precipitation. These pronounced differences between the EAWM-L and the EAWM-M suggest that it is necessary to explore the monsoons' individual features and effects in the EAWM study.

关键词： East Asian winter monsoon temperature precipitation eastern China

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The Cold Vortex Circulation over Northeastern China and Regional Rainstorm Events

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Atmospheric and Oceanic Science Letters 2012年第2期5卷 134-139页

作者： Xie Zuo-Wei Bueh Cholaw Ji Li-Ren sun shu-Qing International Center for Climate and Environment Science (ICCES) Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China The State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG) Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

In this study,regional rainstorm events (RREs) in northeastern China associated with the activity of the Northeastern China Cold Vortex (NCCV) were investigated on a medium-range time *** RREs occurring in northeastern China could be categorized into three groups according to the distribution of heavy *** largest cluster is characterized by the rainstorm events that occur on the northwestern side of the Changbai Mountains along a southwest-northeast *** events occur most frequently during the post-meiyu *** authors place particular emphasis on the RREs that belong to the largest cluster and are closely associated with the activity of the *** RREs were preconditioned by the transportation of substantial amounts of water vapor to which the anomalous western Pacific subtropical high (WPSH) *** attendant anomalous WPSH was primarily driven by the anomalous transient eddy feedback forcing the nearby East Asian *** development of the NCCV circulation was concurrent with the RREs and acted as their primary causative factor.A perspective based on low-frequency dynamics indicates that Rossby wave packets emanated from the blocking-type circulation over northeastern Asia led to the development of the NCCV activity.

关键词： rainstorm northeastern China cold vortex Rossby wave

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Partitioning of nitrogen atoms and its effect on retained austenite content in an ultra-low-carbon Cr-Mn-N stainless steel

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Journal of Iron and Steel Research International 2021年第8期28卷 1030-1036页

作者： Zhe Zhu Wan-tang Fu Rong-bin Li Qi-wei Chen Ze-an Zhou Zhen-hua Wang Jia-qing Liu shu-hua sun State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004HebeiChina Shanghai Engineering Research Center of Hot Manufacturing Shanghai Dianji UniversityShanghai 201306China School of Science Yanshan UniversityQinhuangdao 066004HebeiChina

The partitioning of nitrogen atoms and its effect on the retained austenite content(RAC)during quenching and partitioning(Q&P)process were investigated by dilatometry,X-ray diffraction,and field emission transmission electron microscopy with energy-dispersive spectrometer mapping in a 00Cr13Mn8N *** partitioning by diffusion of N atoms from martensite to austenite occurred at 400℃after quenching.N atoms are enriched in austenite after partitioning,and the stability of these N-rich austenite is improved and retained at room temperature during subsequent *** different quenching temperatures(QTs)result in different phase fractions after *** the increase in QT,RAC first increases and then decreases,and the maximum RAC is 28.5 vol.%after quenching at 80℃.A mathematical model was developed to rapidly and accurately characterize the phase fraction in Q&P process based on the relative length change of the samples partitioned after quenching at different QTs.

关键词： Nitrogen partitioning Quenching and partitioning Retained austenite Energy-dispersive spectrometer mapping Dilatometry Ultra-low-carbon stainless steel

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Design, development, and performance of an ammonia self-managed vaporization propulsion system for micro-nano satellites

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Frontiers of Information Technology & Electronic Engineering 2019年第11期20卷 1516-1529页

作者： shu-jian sun Tao MENG Zhong-he JIN School of Aeronautics and Astronautics Zhejiang UniversityHangzhou 310027China

An ammonia self-managed vaporization propulsion (ASVP) system for micro-nano satellites is presented. Compared with a normal cold gas or liquefied gas propulsion system, a multiplex parallel sieve type vaporizer and related vaporization control methods are put forward to achieve self-managed vaporization of liquefied propellant. The problems of high vaporization latent heat and incomplete vaporization of liquefied ammonia are solved, so that the ASVP system takes great advantage of high theoretical specific impulse and high propellant storage density. Furthermore, the ASVP operation procedure and its physical chemistry theories and mathematical models are thoroughly analyzed. An optimal strategy of thrust control is proposed with consideration of thrust performance and energy efficiency. The ground tests indicate that the ASVP system weighs 1.8 kg (with 0.34-kg liquefied ammonia propellant) and reaches a specific impulse of more than 100 s, while the power consumption is less than 10 W. The ASVP system meets multiple requirements including high specific impulse, low power consumption, easy fabrication, and uniform adjustable thrust output, and thus is suitable for micro-nano satellites.

关键词： Self-managed vaporization Liquefied ammonia Milli-Newton level propulsion Micro-thrust High-precision orbital control Micro-nano satellite

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Regulating the electrolyte solvation structure by weakening the solvating power of solvents for stable lithium metal batteries

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Science China Chemistry 2023年第12期66卷 3620-3627页

作者： Jia-Lin Liang shu-Yu sun Nan Yao Zhao Zheng Qian-Kui Zhang Bo-Quan Li Xue-Qiang Zhang Jia-Qi Huang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Department of Chemical Engineering Tsinghua UniversityBeijing 100081China

Rational electrolyte design is essential for stabilizing high-energy-density lithium(Li)metal batteries but is plagued by poor understanding on the effect of electrolyte component properties on solvation structure and interfacial ***,regulating the solvation structure in localized high-concentration electrolytes(LHCE)by weakening the solvating power of solvents is proposed for high-performance LHCE.1,3-dimethoxypropane(DMP)solvent has relatively weak solvating power but maintains the high solubility of Li salts,thus impelling the formation of nanometric aggregates where an anion coordinates to more than two Li-ions(referred to AGG-n)in *** decomposition of AGG-n increases the Li F content in solid electrolyte interphase(SEI),further enabling uniform Li *** cycle life of Li metal batteries with DMP-based LHCE is 2.1 times(386 cycles)as that of advanced ether-based LHCE under demanding ***,a Li metal pouch cell of 462Wh kg^(-1)undergoes 58 cycles with the DMP-based LHCE *** work inspires ingenious solvating power regulation to design high-performance electrolytes for practical Li metal batteries.

关键词： lithium metal anodes solvation structure 1,3-dimethoxypropane nanometric aggregates pouch cells

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Influence of mechanical reduction amount on internal quality of continuous casting billets by thermal and numerical simulation

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Journal of Iron and Steel Research International 2023年第6期30卷 1234-1243页

作者： Dan-qing Jiang shu-jian sun Han Wu Yang-jian Xu Fu-hai Zhu Zhen-qiang Zhang Jiang Wang Zhong-ming Ren School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

With establishment of thermal and numerical simulation models,the influence of reduction amount on solidification structure,segregation and shrinkage porosity of continuous casting(CC)billets was *** thermal–mechanical coupled simulation results indicated that with an increase in reduction amount,the temperature in the central area decreases,and the reduction efficiency firstly increases and then decreases,reaching the maximum value at reduction amount of 6 *** analysis showed that increasing the reduction amount is beneficial for the refinement of central solidification ***,the internal cracks are more likely to appear at higher reduction *** X-ray computerized tomography results revealed that a higher reduction amount can significantly reduce the volume fraction and equivalent diameter of the central shrinkage porosities of CC billets and increase the sphericity of ***,the macrosegregation of carbon along the central line is improved as the reduction amount increases;while the reduction amount exceeds 8 mm,the segregation degree will not change any more.

关键词： Mechanical reduction Solidification structure Porosity Thermal simulation Continuous casting billet

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On cross-cultural pragmatic failure in English advertisements translated from Chinese

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Sino-US English Teaching 2007年第10期4卷 60-65页

作者： sun shu-nv School of International Studies Zhejiang University Hangzhou 310012 China School of Foreign Languages Zhejiang Education Institute Hangzhou 310058 China

With the rapid development of globalization, more and more factories and companies in China are keen to put their products onto the international market. Advertising translation is the outcome of this economic trend. This paper tries to analyze cross-cultural pragmatic failure in English advertisements translated from Chinese at lexical and textual levels, and puts forward some suggestions on how to avoid cross-cultural pragmatic failure.

关键词： pragmatic failure trademark advertisements

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Phase and CCT Diagram of an N-Containing 8%Cr Roller Steel

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Journal of Harbin Institute of Technology(New Series) 2013年第6期20卷 112-117页

作者： shu-Hua sun Bo Wang Zhen-Hua Wang Yang Gao Ming-Wei Guo Wan-Tang Fu State Key Laboratory of Metastable Materials Science and Technology Yanshan University College of Sciences Yanshan University Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University) Ministry of Education of China China First Heavy Industries

The pseudo-equilibrium phase diagram and continuous cooling transformation diagram of an N-containing 8％ Cr roller steel were investigated by using thermodynamic calculation,differential scanning calorimetry,Ⅹ-ray diffraction,expansion method,and so *** equilibrium conditions,the main carbonitrides are MX,M7C3,and M23C6 *** measured Ac1,Ac3,start temperature of martensitic transformation,and M7C3 transformation temperatures are 811,855,324,and 1100 ℃,*** appears at cooling rates ranging from 0.5 to 5 ℃/s and ferrite forms at grain boundaries at a cooling rate lower than 0.5 ℃/***,the effects of adding N and lowering the C content on workability and mechanical properties of common 8％Cr steel were discussed.

关键词： high Cr roller steel phase diagram continuous cooling transformation N alloyingCLC number:TG142.45 Document code:AArticle ID:1005-9113(2013)06-0112-06

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Constitutive activation of calcium-dependent protein kinase 3 confers a drought tolerance by inhibiting inward K＋ channel KAT1 and stomatal opening in Arabidopsis

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Science Bulletin 2018年第16期63卷 1037-1039页

作者： Guo-Ning Qi Fen-Yong Yao Hui-Min Ren shu-Jing sun Jamshaid Hussain Chao-Feng Huang Yong-Fei Wang National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant Sciences Shanghai Institute of Plant Physiology and Ecology Chinese Academy of Sciences Shanghai 200032 China University of Chinese Academy of Sciences Shanghai 200032 China Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences Shanghai 200032 China Biotechnology Program Department of Environmentul Sciences COMSATS Institute of lnformation Technology 22060 Abbottabod Pakistan

The changes of turgor pressure in guard cells resulted from the massive fluxes of osmotic ions into and out of guard cells through ion channels and transporters are the main driving force for stomatal movement[1].The massive efflux of diverse osmotic anions are mainly mediated by slow and rapid anion channels for stomatal closure,whereas the influx of K^+,the main osmotic cation and

关键词： Arabidopsis 隧道气孔蛋白质激活组成干旱阴离子

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