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Determination of Optimum Growing Degree-Days (GDD) Range Before Winter for Wheat Cultivars with Different Growth Characteristics in North China Plain

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Journal of Integrative Agriculture 2012年第3期11卷 405-415页

作者： LI qiao-yun yin Jun LIU Wan-dai ZHOU Su-mei LI Lei NIU Ji-shan NIU Hong-bin MA ying National Centre of Engineering and Technological Research for Wheat Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhou 450002P.R.China

To provide base for adjusting the sowing date,achieving the yield potential of wheat cultivars with different growth characteristics,and improving the utilization rate of natural resource in the North China Plain （NCP）,a 4-yr field experiment of growing degree-days （GDD） before winter （realized through different sowing dates） with three wheat （Triticum aestivum L.） cultivars of each type of semi-winterness and weak springness was carried out at 20 test experimental sites （32°4’N36°1’N） of Henan Province in the *** results showed that：（i） yield of semi-winterness wheat was significantly higher than weak springness wheat （P〈0.01）;（ii） there was a quadratic regression between the yield and GDD before *** to the regression equation,the optimum GDD range with high yield of semi-winterness and weak springness wheats was 750-770 and 570-590°C d,respectively;（iii） under the optimum GDD condition,the foliar age on the main stem of semi-winterness and weak springness wheats was 7.67-7.91 and 6.36-6.86 leaves,respectively,calculated by the linear regression equation between foliar age and GDD before winter;（iv） both semi-winterness and weak springness wheats were in the double ridge stage of spike differentiation under the condition of the optimum GDD range,and at this time,the foliar age on the main stem of semi-winterness and weak springness wheats was about 7.80 and 6.07 leaves,respectively,which was consistent with the results calculated by the liner regression ***,we could consider that the sowing date is appropriate if the foliar age is about 7.8 and 6.3 leaves for semi-winterness and weak springness wheats,*** to the results of this study,choosing semi-winterness wheat and planting 710 d earlier would improve yield and natural resource utilization in NCP.

关键词： wheat growing degree-days (GDD) yield foliar age

Progress in side-chain thiophene-containing polymers: synthesis, properties and applications

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Science China Chemistry 2015年第11期58卷 1641-1650页

作者： Yali qiao Xiaodong yin Chuanbing Tang Department of Chemistry and Biochemistry University of South Carolina

In contrast to conventional main-chain conjugated polymers, incorporation of electronically active conjugated oligomers into non-conjugated polymer backbones as pendant groups represents a promising alternative strategy to developing novel electroactive polymer materials that are desirable for potential applications in organic electronics. This review focuses on polymers with thiophene in the side chain and summarizes the most important synthetic approaches to these polymers, including direct controlled polymerization techniques(e.g., ATRP, ROMP, and RAFT) as well as post-polymerization modifications. Additionally, various properties and applications of these polymers are discussed.

关键词： non-conjugated polymer thiophene controlled polymerization post-polymerization modification organic electronics

The Mexican hat effect on the delamination buckling of a compressed thin film

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Acta Mechanica Sinica 2014年第6期30卷 927-932页

作者： yin Zhang yun Liu State Key Laboratory of Nonlinear Mechanics (LNM) Institute of Mechanics Chinese Academy of Sciences Faculty of Information and Automation Kunming University of Science and Technology

Because of the interaction between film and substrate,the film buckling stress can vary significantly,depending on the delamination geometry,the film and substrate mechanical *** Mexican hat effect indicates such *** analytical method is presented,and related dimensional analysis shows that a single dimensionless parameter can effectively evaluate the effect.

关键词： Buckling Delamination Elastic foundation Thin film Compliant substrate

Strong photoluminescence of Cs_4PbBr_6 crystals: a long mystery story

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Science Bulletin 2018年第9期63卷 525-526页

作者： qiao Zhang Yadong yin Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Department of Chemistry University of California

Halide perovskite nanocrystals(NCs)with a general composition of ABX_3(A=MA,FA or Cs;B=Pb,Sn;and X=Br,I,Cl)have been widely studied for photovoltaic ***,halide perovskites NCs based light-emitting diodes(LEDs)have also attracted significant attention because they have been regarded as the next-generation display technology[1].However,we

关键词：光致发光稳定性问题故事晶体显示技术卤化物新材料二极管

Dissemination of scientific information to fight against COVID-19:Academic journals' role

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Asian Pacific Journal of Tropical Medicine 2021年第12期14卷 525-527页

作者： qiao Zhang yin Pan Editorial Office of Asian Pacific Journal of Tropical Medicine Hainan Medical UniversityHaikou 571199China

In December 2019,the unprecedented newly emerging coronavirus disease 2019(COVID-19)was first *** March 2020,the World Health Organization(WHO)declared the disease a pandemic,which posed a severe challenge for the *** the beginning of the outbreak,the origin of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),which is the causative agent of COVID-19,mode of transmission,prevention and control,diagnosis and treatment all remained ***’s worse,the disease spread rapidly and *** whole world was in *** across the globe had to make quick decisions to defeat the virus under high ***,academia,researchers and public health infrastructures around the world were not well-prepared for such a pandemic,and academic journals were also faced with the enormous task of rapidly communicating research findings on COVID-19 while maintaining scientific vigor and integrity of the published *** dissemination of the most up-to-date scientific discoveries is of great importance in the current COVID-19 pandemic;thus,the global scientific publication community has adapted to expedite the publication of important and time-sensitive COVID-19 studies.

关键词： prevention diagnosis adapted

汉麻籽多肽靶向抑制胰脂肪酶/胆固醇酯酶的分子作用机制

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食品科学 2025年第2期46卷 38-49页

作者：尹浩朱将雄赵海云钟宇王丹凤邓云上海交通大学农业与生物学院上海200240 上海交通大学云南(大理)研究院云南大理671000 云南省大理白族自治州检验检测院云南大理671000

采用酶活动力学、联合抑制、荧光光谱、等温滴定量热法和分子对接等技术系统探究两种多肽(APAM和RLPA)对胰脂肪酶(pancreatic lipase,PL)和胆固醇酯酶(cholesterol esterase,CE)活性调控效果及分子结合机制。结果表明,RLPA对PL和CE具有... 详细信息

采用酶活动力学、联合抑制、荧光光谱、等温滴定量热法和分子对接等技术系统探究两种多肽(APAM和RLPA)对胰脂肪酶(pancreatic lipase,PL)和胆固醇酯酶(cholesterol esterase,CE)活性调控效果及分子结合机制。结果表明,RLPA对PL和CE具有更强的抑制活性,其半抑制浓度分别为(79.62±3.20)μmol/L和(301.27±14.40)μmol/L。抑制动力学分析表明APAM对两种酶的抑制机制为竞争性抑制,而RLPA则为混合性抑制。联合抑制表明APAM和RLPA在低浓度下均可与奥利司他协同抑制PL和CE,但在高浓度下协同作用减弱,甚至出现拮抗现象。荧光光谱结果表明两种多肽可以通过与PL和CE发生结合产生静态猝灭,改变了酶中脂肪族氨基酸的疏水环境。等温滴定量热法证明多肽与酶的结合过程是自发且放热,主要通过氢键和静电相互作用实现。分子对接模拟进一步分析表明氢键、盐桥和阳离子-π相互作用在多肽与酶的结合中起着至关重要的作用。这项研究丰富了对多肽与PL和CE的相互作用机制的认识,为开发基于汉麻籽蛋白的功能性食品提供了科学依据。

关键词：脂质消化酶抑制机制荧光光谱等温滴定量热法分子模拟

An implicit symmetry constraint of the modified Korteweg-de Vries (mKdV) equation

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第10期9卷 1457-1462页

作者： ying YOU Jing YU qiao-yun JIANG Department of Mathematics Zhejiang University Hangzhou 310027 China School of Science Hangzhou Dianzi University Hangzhou 310018 China College of Science Nantong University Nantong 226007 China

In this paper, an implicit symmetry constraint is calculated and its associated binary nonlinearization of the Lax pairs and the adjoint Lax pairs is carried out for the modified Korteweg-de Vries (mKdV) equation. After introducing two new inde-pendent variables, we find that under the implicit symmetry constraint, the spatial part and the temporal part of the mKdV equation are decomposed into two finite-dimensional systems. Furthermore we prove that the obtained finite-dimensional systems are Hamiltonian systems and completely integrable in the Liouville sense.

关键词： Implicit symmetry constraint Completely integrable Hamiltonian system Modified Korteweg-de Vries (mKdV) equation

Synthesis and Crystal Structure of a Novel Ternary Ni(II) Complex with 2-Hydroxyl-1,10- phenanthroline and 2-Hydroxynicotinic Acid as Ligands

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Chinese Journal of Structural Chemistry 2006年第6期25卷 747-751页

作者： WANG Jian-Ge DU qiao-yun LI Peng-yun Department of Chemistry Luoyang Normal University Luoyang 471022 China

A novel ternary complex of [NiL1L2·2H2O]·NO3·H2O （L1 = 2-hydroxyl-1,10-phenanthroline （HOphen）, L2 = 2-hydroxynicotinic acid （H2nicO）） was synthesized, and its crystal structure was determined by X-ray diffraction and further characterized by infrared and elementary analysis. The title complex （C18H18NiN4O10, Mr = 509.07） belongs to the triclinic system, space group P1^- with a = 712490（7）, b = 11.0164（10）, c = 13.3864（13）A, α = 91.6040（10）,β= 98.8620（10）, γ= 107.1140（10）°, V= 1006.43（17）A^3, Z = 2, Dc = 1.680 g/cm^3,μ= 1.032 mm^-1, F（000） = 524, the final R = 0.0461 and wR= 0.1238. In the complex, the Ni（H） ion is six-coordinated to assume a distorted octahedral geometry, and a 3D supramolecular network comes into being via weak intermolecular interactions of X-O--.H （X = N, O）.

关键词： 2-hydroxyl-1,10-phenanthroline 2-hydroxynicotinic acid nickel complex crystal structure

Adversarial attacks and defenses for digital communication signals identification

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Digital Communications and Networks 2024年第3期10卷 756-764页

作者： qiao Tian Sicheng Zhang Shiwen Mao yun Lin College of Computer Science and Technology Harbin Engineering UniversityHarbin150001China College of Information and Communication Engineering Harbin Engineering UniversityHarbin150000China Department of Electrical and Computer Engineering Auburn UniversityAuburnAL36849USA

As modern communication technology advances apace,the digital communication signals identification plays an important role in cognitive radio networks,the communication monitoring and management *** has become a promising solution to this problem due to its powerful modeling capability,which has become a consensus in academia and ***,because of the data-dependence and inexplicability of AI models and the openness of electromagnetic space,the physical layer digital communication signals identification model is threatened by adversarial *** examples pose a common threat to AI models,where well-designed and slight perturbations added to input data can cause wrong ***,the security of AI models for the digital communication signals identification is the premise of its efficient and credible *** this paper,we first launch adversarial attacks on the end-to-end AI model for automatic modulation classifi-cation,and then we explain and present three defense mechanisms based on the adversarial *** we present more detailed adversarial indicators to evaluate attack and defense ***,a demonstration verification system is developed to show that the adversarial attack is a real threat to the digital communication signals identification model,which should be paid more attention in future research.

关键词： Digital communication signals identification AI model Adversarial attacks Adversarial defenses Adversarial indicators