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Identification of the ryanodine receptor mutation I4743M and its contribution to diamide insecticide resistance in Spodoptera exigua (Lepidoptera: Noctuidae)

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Insect Science 2020年第4期27卷 791-800页

作者： Ya-Yun Zuo huan-huan ma Wen-Jie Lu Xing-Liang Wang Shu-Wen Wu Ralf Nauen Yi-Dong Wu Yi-Hua Yang College of Plant Protection Nanjing Agricultural UniversityNanjingChina Bayer CropScience R&D Pest ControlMonheimGermany

Insect ryanodine receptors(RyRs)are the targets of diamide *** point mutations G4946E and I4790M(numbering according to Plutella xylostella,PxRyR)in the transmembrane domain of the insect RyRs associated with diamide resistance have so far been identified in three lepidopteran pests,***,Tuta absoluta and Chilo *** this study,we identified one of the known RyR target site resistance mutations(I4790M)in a field-collected population of Spodoptera *** field-collected WF population of *** exhibited 154 fold resistance to chlorantraniliprole when compared with the susceptible WH-S *** the transmembrane domains of *** RyR(SeRyR)revealed that the resistant WF strain was homozygous for the 14743M mutation(corresponding to I4790M in PxRyR),whereas the G4900E allele(corresponding to G4946E of PxRyR)was not *** 4743M allele was introgressed into the susceptible WH-S strain by crossing WF with WH-S,followed by three rounds of backcrossing with *** introgressed strain 4743M was homozygous for the mutant 4743M allele and shared about 94%of its genetic background with that of the recipient WH-S *** with WH-S,the near-isogenic 4743M strain showed moderate levels of resistance to chlorantraniliprole(21 fold),cyantraniliprole(25 fold)and flubendiamide(22 fold),suggesting that the I4743M mutation confers medium levels of resistance to all three *** analysis showed diamide resistance in the 4743M strain was inherited as an autosomal and recessive *** from this study have direct implications for the design of appropriate resistance monitoring and management practices to sustainably control ***.

关键词： beet armyworm diamide insecticides point mutation resistance ryanodine receptor

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THEORETICAL ANALYSES OF NON-CONTACT LINEAR MOTORS DRIVEN BY SURFACE ACOUSTIC WAVES

THEORETICAL ANALYSES OF NON-CONTACT LINEAR MOTORS DRIVEN BY ...

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第三届全国压电和声波理论及器件技术研讨会

作者： huan-huan GU,Di ma,Shu-yi ZHANG,Li-ping CHENG,Xiu-ji SHUI Lab of Modern Acoustics,Institute of Acoustics,Nanjing University,Nanjing,Jiangsu 210093,China

In this article,theoretical analyses on the non-contact linear motors driven by surface acoustic waves(SAW) are presented,in which the sliders are driven by SAW stators through liquid *** theoretical results show that the velocity of the slider motion at the liquid layer surface is proportional to the vibration amplitude of the SAW and decreases exponentially with the thickness of liquid layer *** experimental results show that the slider velocity is proportional to the driving voltage of the SAW and decreases approximately exponentially with the thickness of the liquid layer *** the amplitude of the SAW is proportional to the driving voltage,it is demonstrated that the theoretical calculations are verified by the experimental results.

关键词： Ultrasonic motor surface acoustic wave acoustic streaming

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ATRP法合成AC-g-PSStNa及其对辣根过氧化物酶固定化的影响

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现代化工 2017年第8期37卷 90-93页

作者：毕淑娴刘欢欢马保军詹海娟刘万毅宁夏大学化学化工学院宁夏银川750021

以活性炭(AC)为原料,利用原子转移自由基聚合法(ATRP)合成了AC-g-PSSt Na有机无机杂化材料,并对其进行FT-IR、SEM、XPS表征。以AC-g-PSSt Na为载体对辣根过氧化物酶(HRP)进行固定化,比较游离酶和固定化酶的pH稳定性、热稳定性及储存稳... 详细信息

以活性炭(AC)为原料,利用原子转移自由基聚合法(ATRP)合成了AC-g-PSSt Na有机无机杂化材料,并对其进行FT-IR、SEM、XPS表征。以AC-g-PSSt Na为载体对辣根过氧化物酶(HRP)进行固定化,比较游离酶和固定化酶的pH稳定性、热稳定性及储存稳定性。结果表明,Ac-g-PSSt Na固定化HRP的pH稳定性及热稳定性均强于游离酶,特别是在高温范围内表现出高的催化活性;在碱性环境中固定化酶的活性比游离酶高。可见AC-g-PSSt Na复合材料可有效地应用于固定化HRP。

关键词：活性炭原子转移自由基聚合辣根过氧化物酶固定化酶

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Limit behaviors for dependent Bernoulli variables

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Applied mathematics(A Journal of Chinese Universities) 2020年第4期35卷 399-409页

作者： MIAO Yu ma huan-huan College of mathematics and Information Science Henan Normal UniversityXinxiang 453007China

In this paper,we consider a class of dependent Bernoulli variables,which has the following form:for k≥m,P(Xk+1=1jFk)=Σm i=1θiXk+1􀀀i+θ0p,where m is a positive integer,Σmi=0θi=1,Fn=σ{X1,……,Xn},0 详细信息

关键词： strong law of large numbers moderate deviation Bernoulli variables martingale

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Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition

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Frontiers of Chemical Science and Engineering 2017年第4期11卷 586-593页

作者： Liu, huan ma, Zhen Fudan Univ Dept Environm Sci & Engn Shanghai Key Lab Atmospher Particle Pollut & Prev Shanghai 200433 Peoples R China

Hexagonal CePO4 nanorods were prepared by a precipitation method and hexagonal CePO4 nanowires were prepared by hydrothermal synthesis at 150 ℃. Rh （NO3）3 was then used as a precursor for the impregnation of Rh203 onto these CePO4 materials. The Rh203 supported on the CePO4 nanowires was much more active for the catalytic decomposition of N20 than the RhzO3 supported on CePO4 nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed （CO2, O2, H20 or O2/H20） on the N20 decomposition was also investigated. The samples were characterized by N2 adsorption-desorption, induc- tively coupled plasma optical emission spectroscopy, X- ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-pro- grammed reduction, oxygen temperature-programmed desorption, and CO2 temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

关键词： Rh2O3 CePO4 N2O decomposition

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新余市近52年来暴雨气候特征分析

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新余学院学报 2016年第5期21卷 16-19页

作者：袁春李欢欢马尚芹肖云熊志文江西省新余市气象局江西新余338025

利用1959-2010年新余逐日降水资料和暴雨定义,通过趋势、Morlet小波、mann-Kendall法(简称M-K法)分析其变化特征。结果表明:新余市暴雨季节变化显著,4-6月为多暴雨季节,最多的月份出现在6月;新余市年暴雨日数和汛期暴雨日数都有准12a的... 详细信息

利用1959-2010年新余逐日降水资料和暴雨定义,通过趋势、Morlet小波、mann-Kendall法(简称M-K法)分析其变化特征。结果表明:新余市暴雨季节变化显著,4-6月为多暴雨季节,最多的月份出现在6月;新余市年暴雨日数和汛期暴雨日数都有准12a的周期变化,先后经历了3个偏多期和4个偏少期;暴雨日数的变化和降水量的变化是一致的,尤其是汛期相关系数高达0.805。无论是汛期还是全年,新余市暴雨日数和降水量都正在由偏少向偏多转换。突变主要发生在60年代初和80年代中期。

关键词：暴雨日数气候特征小波分析突变检验

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Rh_2O_3/monoclinic CePO_4 composite catalysts for N_2O decomposition and CO oxidation

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Chinese Journal of Chemical Engineering 2018年第1期26卷 109-115页

作者： huan Liu Zhen ma Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention Department of Environmental Science and EngineeringFudan University

CePO4 （in particular, monoclinic CePO4） has been rarely used to make supported catalysts. Herein, monoclinic CeP04 nanoparticles were prepared by calcining hexagonal CePO4 nanomds （prepared by precipitation） in air at 900 ℃. Monoclinic CePO4 nanowires were prepared by calcining hexagonal CePO4 nanowires （prepared by hydrothermal synthesis at 150 ℃） in air at 900 ℃. Both monoclinic CePO4 materials were used to support Rh2O3 by impregnation using Rh（NO3）3 as a precursor （followed by calcination）. The catalytic performance of Rh2O3/monoclinic CePO4 composite materials in N2O decomposition and CO oxidation was investigated. It was found that Rh2O3 supported on monoclinic CePO4 nanowims was much more active than Rh2O3 supported on monoclinic CePO4 nanoparticles. The stability of catalysts as a function of reaction time on stream was studied in both reactions. The influence of co-fed CO2, O2, and H2O on the catalytic activity in N20 decomposition was also studied. These catalysts were characterized by employing N2 adsorption-desorption, ICP-OES, XRD, TEM, XPS, H2-TPR, O2-TPD, and CO2-TPD. The correlation between physicochemical properties and catalytic properties was discussed.

关键词： Rh2O3 CePO4 N2O decomposition CO oxidation Catalyst

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Cerium phosphate-supported Au catalysts for CO oxidation

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Chinese Journal of Chemical Engineering 2018年第10期26卷 2055-2063页

作者： Yulin Wang huan Liu Zhen ma Shanghai Key Lahoratory of Atmospheric Particle Pollution & Prevention ( IAP^3 ) Department of Environmental Sdence & Engineering Fudan University Shanghai 200433 China

LaPO_4 and hydroxyapatite(Ca_(10)(PO_4)_6(OH)_2)are typical metal phosphates recently found to be useful for making supported metal or metal oxide catalysts,but CePO_4(also belonging to the metal phosphate family)has been rarely used to make supported *** would be interesting to develop CePO_4-supported catalysts and explore their catalytic ***,hexagonal CePO_4 nanorods(denoted as CePO_4-H),hexagonal CePO_4 nanowires(CePO_4-HNW),monoclinic CePO_4 nanoparticles(CePO_4-M),and monoclinic CePO_4 nanowires(CePO_4-MNW)prepared by different methods were used to support gold via deposition-precipitation with urea(DPU).The gold contents of these catalysts were all around 1 wt%.The catalytic activities of these Au/CePO_4 catalysts in CO oxidation were found to follow the sequence of Au/CePO_4-MNW>Au/CePO_4-HNW> Au/CePO_4-M>Au/CePO_*** catalysts were characterized by inductively coupled plasma-optical emission spectroscopy(ICP-OES),N_2 adsorption–desorption,X-ray diffraction(XRD),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),oxygen temperature-programmed desorption(O_2-TPD),and CO_2 temperature-programmed desorption(CO_2-TPD)to find possible correlations between the physicochemical properties and catalytic activities of these catalysts.

关键词： Gold Catalysis Catalyst support CePO4 Carbon monoxide Oxidation

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Soil water response to precipitation in different microtopographies on the semi-arid Loess Plateau,China

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Journal of Forestry Research 2020年第1期31卷 245-256页

作者： huan ma Qingke Zhu Weijun Zhao Forestry Ecological Engineering Research Center School of Soil and Water ConservationBeijing Forestry UniversityBeijing 100083People’s Republic of China Key Laboratory of Tourism and Resources Environment in Colleges and Universities of Shandong Province Taishan UniversityTaianShandong 271000People’s Republic of China

Soil water is an important factor restricting afforestation on the semi-arid Loess *** microtopography of the loess slope has changed the distribution pattern of soil water on the *** improve water utilization efficiency and optimize afforestation configuration patterns,the relationship between soil water and precipitation at micro-topographic scale must be *** used time series analysis to study the temporal variation of soil water and its response to precipitation in four kinds of micro-topographies and undisturbed slope on loess ***-topographies significantly influenced soil water distribution and dynamics on the *** water stored in the platform,sinkhole,and ephemeral gully influenced subsequent soil water for 4 weeks,whereas soil water stored in the scarp and undisturbed slope could influence soil water for 2 *** took 12 weeks,10 weeks,18 weeks,6 weeks,and 12 weeks for precipitation to reach the deeper soil layer in the platform,sinkhole,scarp,ephemeral gully,and undisturbed slope,*** soil water characteristics in different micro-topographies are vital factors that should be taken into consideration when undertaking afforestation on the Loess Plateau.

关键词： Semi-arid Loess Plateau Micro-topography Afforestation Time series analysis Soil water

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电针不同神经节段腧穴对2型糖尿病大鼠的影响

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针灸临床杂志 2017年第6期33卷 57-60,F0003页

作者：胡晓刚李瑞贾宁田环环马艳佳王跃颖曹昺焱北京中医药大学北京100029 中国中医科学院西苑医院北京100091

目的:通过观察电针不同腧穴对2型糖尿病大鼠影响,为临床针灸治疗T2DM选穴提供依据。方法:以高糖高脂饮食结合链脲佐菌素注射制备T2DM模型大鼠,随机分为模型组、心俞组、胰俞组和肾俞组,分别以电针刺激心俞穴、胰俞穴、肾俞穴,连续干预4... 详细信息

目的:通过观察电针不同腧穴对2型糖尿病大鼠影响,为临床针灸治疗T2DM选穴提供依据。方法:以高糖高脂饮食结合链脲佐菌素注射制备T2DM模型大鼠,随机分为模型组、心俞组、胰俞组和肾俞组,分别以电针刺激心俞穴、胰俞穴、肾俞穴,连续干预4周,观察各组动物空腹血糖、OGTT曲线下面积、空腹胰岛素、胰岛素抵抗水平和胰岛形态的变化。结果:(1)胰俞组空腹血糖和OGTT曲线下面积下降显著(P0.05);(2)电针对大鼠空腹胰岛素水平无影响,胰俞组HOma-IR较模型组极显著降低(P0.05);(3)HE染色:模型组胰岛严重萎缩,胰岛内细胞减少,细胞形态异常;胰俞组胰岛形态、胰岛内细胞的形态和数目基本接近空白组。结论:电针胰俞穴可以降低T2DM大鼠血糖,改善糖耐量和胰岛素抵抗,保护胰岛形态,且胰俞穴的这些作用符合神经节段支配理论。

关键词：电针胰俞 T2DM 大鼠神经节段

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