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Seedling and adult plant resistance to leaf rust in 46 Chinese bread wheat landraces and 39 wheat lines with known Lr genes

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Journal of Integrative Agriculture 2019年第5期18卷 1014-1023页

作者： ZHANG pei-pei Takele Weldu Gebrewahid ZHOU Yue LI Qing-luo LI Zai-feng LIU Da-qun Department of Plant Pathology College of Plant Protection Hebei Agricultural University College of Agriculture Aksum University-Shire Campus College of Biochemistry and Environmental Engineering Baoding University

Wheat leaf rust,caused by Puccinia triticina(Pt),is an important foliar disease that has an important influence on wheat *** most economic,safe and effective way to control the disease is growing resistant *** the present study,a total of 46 wheat landraces and 34 wheat lines with known Lr(leaf rust resistance)genes were inoculated with 16Pt pathotypes for postulating seedling resistance gene(s)in the *** cultivars and five wheat differential lines with adult plant resistance(APR)genes(Lr12,Lr22b,Lr34,Lr35 and Lr37)were also evaluated for identification of slow rusting resistance in the field trials in Baoding,Hebei Province of China in the 2014–2015 and 2015–2016 cropping ***,10 functional molecular markers closely linked to 10 known Lr genes were used to detect all the wheat *** showed that most of the landraces were susceptible to most of the Pt pathotypes at seedling ***,Lr1 was detected only in *** field experimental test of the two environments showed that 38 landraces showed slow rusting *** cultivars possessed Lr34 but none of the landraces contained Lr37 and *** genes namely,Lr9,Lr19,Lr24,Lr28,Lr29,Lr47,Lr51 and Lr53 were effective at the whole plant ***18,Lr36 and Lr45 had lost resistance to part of pathotypes at the seedling stage but showed high resistance at the adult plant ***34 as a slowing rusting gene showed good resistance in the *** race-specific APR genes Lr12,Lr13,Lr35 and Lr37 conferred good resistance in the field *** race-specific genes,Lr2b,Lr2c,Lr11,Lr16,Lr26,Lr33 and LrB had lost *** 38 landraces showed slow rusting resistance to wheat leaf rust can be used as resistance resources for wheat resistance breeding in China.

关键词： Triticum aestivum L. wheat leaf rust gene postulation adult plant resistance

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Numerical Simulation of Icing on Nrel 5-MW Reference Offshore Wind Turbine Blades Under Different Icing Conditions

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China Ocean Engineering 2022年第5期36卷 767-780页

作者： CAO Hui-qing BAI Xu MA Xian-dong yin qun YANG Xiang-yu School of Naval Architecture&Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China The Department of Engineering Lancaster UniversityLancaster LA14YWUK

Offshore wind energy resources are operational in cold regions,while offshore wind turbines will face the threat of ***,it is necessary to study icing of offshore wind turbines under different icing *** this study,icing sensitivity of offshore wind turbine blades are performed using a combination of FLUENT and FENSAP-ICE software,and the effects of liquid water content(LWC),medium volume diameter(MVD),wind speed and air temperature on blade icing shape are analyzed by two types of ice,namely rime ice and glaze *** results show that the increase of LWC and MVD will increase the amount of ice that forms on the blade surface for either glaze ice or rime ice,and an increase of MVD will expand the adhesion surface between ice and *** reaching the rated wind speed of 11.4 m/s,it does not directly affect the icing ***,after reaching the rated wind speed,the attack angle of the incoming flow decreases obviously,and the amount of ice increases *** the ambient air temperature meets the icing conditions of glaze ice(i.e.,−5℃ to 0℃),the lower the temperature,the more glaze ice freezes,whereas air temperature has no impact on the icing of rime *** with onshore wind turbines,offshore wind turbines might face extreme meteorological conditions,and the wind speed has no impact on the amount of ice that forms on the blade surface for most wind speeds.

关键词： environmental parameters cold regions offshore wind turbine rime glaze numerical simulation

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空间斯特林热电转换技术在轨试验

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宇航学报 2024年第1期45卷 123-132页

作者：尹钊张安郭佩闫春杰赵振昊张学林魏志明陆登柏北京空间飞行器总体设计部北京100094 兰州空间技术物理研究所真空技术与物理重点实验室兰州730000

为提高空间同位素电源的效率和功率,满足深空探测、载人登月和火星登陆等航天任务对航天器能源的需求,梳理了空间自由活塞斯特林热电转换涉及的关键技术,设计了天宫空间站空间自由活塞斯特林热电转换装置的在轨试验方案,在轨开展了斯特... 详细信息

为提高空间同位素电源的效率和功率,满足深空探测、载人登月和火星登陆等航天任务对航天器能源的需求,梳理了空间自由活塞斯特林热电转换涉及的关键技术,设计了天宫空间站空间自由活塞斯特林热电转换装置的在轨试验方案,在轨开展了斯特林热电转换试验,验证了空间微重力环境下双活塞自由运动的间隙密封、双活塞相位保持等关键技术,获取了空间环境下双自由活塞精确的运动相位保持及漂移特性、动力学与热力学强耦合特性等关键参数。在轨试验结果表明,试验装置在轨运行性能良好,热电转换效率达到24.72%,为未来空间高效同位素电源等不依赖太阳能的能源技术应用奠定了基础。

关键词：天宫空间站空间同位素电源自由活塞斯特林热电转换在轨试验

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Selective hydroconversion of 2-methylfuran to pentanols on MWNT-supported Pt catalyst at ambient temperature

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Rare Metals 2022年第3期41卷 889-900页

作者： Ting Wang Bin Zhang Chao-qun yin Jun Zhao Xiang Liu Chuan Wang Institute of Advanced Synthesis School of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech UniversityNanjing 211816China Nanyang Environment and Water Research Institute(NEWRI) Nanyang Technological UniversitySingapore 637141Singapore

The selective hydrogenolysis of C–O bond in furfural and its derivatives provides a sustainable route for transforming biomass-derived feedstocks into valued chemicals. Currently, the development of efficient catalysts which can effectively cleavage C–O bond under mild conditions remains a critical challenge. The present work reports Pt catalysts supported on multi-walled carbon nanotubes (MWNT) which are active in 2-methylfuran (2-MF) hydrogenolysis to form pentanols in liquid phase under mild conditions. The impact of various catalyst supports, active metals and reaction conditions in terms of metal loadings, solvent, time, pressure, etc., were *** 5 wt%Pt/MWNT catalyst demonstrated an excellent activity and selectivity with 100%2-MF conversion and53%pentanols (POLs) yield under 1 MPa H;at an exceptional low temperature of 25℃. The reaction mechanism was studied combing both the reactivity tests and characterization results, and it is found that the better catalytic performances of Pt/MWNT were correlated closely to the size of Pt nanoparticles and their interactions with the underlying MWNT support. Accordingly, a reaction pathway involving the adsorption of 2-MF parallel to the Pt nanoparticles and its subsequently selective C–O hydrogenolysis was proposed. This work showcases a promising catalyst for room-temperature biofuel production.

关键词： 2-methylfuran(2-MF) C–O cleavage Pentanols Multi-walled carbon nanotubes(MWNT) Platinum

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基于全生命周期策略的排水养护信息化管理新模式

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中国给水排水 2024年第8期40卷 17-21页

作者：邵银霞周洁汪玲玲王沛丰吕思远中国电建集团华东勘测设计研究院有限公司浙江杭州311122 浙江华东工程数字技术有限公司浙江杭州311122

针对传统市政排水养护管理流程中普遍存在的计划编制缺乏科学指导、现场操作缺乏规范约束、作业安全缺乏有效监管、养护费用缺乏可靠计量等问题,结合城市排水管渠养护标准规范、智慧水务管理特点及各类用户业务需求,对传统排水设施养护... 详细信息

针对传统市政排水养护管理流程中普遍存在的计划编制缺乏科学指导、现场操作缺乏规范约束、作业安全缺乏有效监管、养护费用缺乏可靠计量等问题,结合城市排水管渠养护标准规范、智慧水务管理特点及各类用户业务需求,对传统排水设施养护流程进行了优化迭代设计,提出了基于全生命周期管护策略的市政排水养护信息化管理新思路,并有针对性地进行了系统功能设计和应用实践。结果表明,该系统应用情况良好,适用于城市排水管网维养管理,有助于提高城市排水管网运维水平。

关键词：市政排水管网养护智慧水务全生命周期

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融合效用与兴趣的在线用户健康干预推荐

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建模与仿真 2024年第3期13卷 3181-3195页

作者：严晗尹裴张骏宋俊杰上海理工大学管理学院上海

面向在线健康社区的推荐,系统需要推荐用户感兴趣且能改善其健康状况的干预方案。为此,本文提出了融合效用与兴趣的在线用户健康干预推荐模型,先利用注意力机制对用户兴趣进行学习,同时计算待推荐方案对其参与者的预计疗效,接着评估干... 详细信息

面向在线健康社区的推荐,系统需要推荐用户感兴趣且能改善其健康状况的干预方案。为此,本文提出了融合效用与兴趣的在线用户健康干预推荐模型,先利用注意力机制对用户兴趣进行学习,同时计算待推荐方案对其参与者的预计疗效,接着评估干预方案对目标用户的效用,最终结合方案效用和用户兴趣得出推荐结果。实验结果证明与其他推荐模型相比,本文模型有最好的推荐结果且能提高推荐的方案对于用户的效用。

关键词：推荐系统在线健康社区效用深度学习注意力机制

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黄河流域公共文化服务与旅游产业的耦合协调特征及影响因素

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青岛科技大学学报（社会科学版） 2024年第2期40卷 26-34页

作者：尹鹏赵磊郭付友段佩利鲁东大学商学院山东烟台264025 浙江工业大学管理学院浙江杭州310014 曲阜师范大学地理与旅游学院山东日照276800

运用耦合协调度模型、核密度估计方法和地理探测器模型,探讨2005、2010、2015和2020年黄河流域公共文化服务与旅游产业的耦合协调特征及影响因素。结果表明:第一,黄河流域公共文化服务指数呈现“∧”形特征,空间均衡特征明显,高值集中... 详细信息

运用耦合协调度模型、核密度估计方法和地理探测器模型,探讨2005、2010、2015和2020年黄河流域公共文化服务与旅游产业的耦合协调特征及影响因素。结果表明:第一,黄河流域公共文化服务指数呈现“∧”形特征,空间均衡特征明显,高值集中在中西部内陆城市和省会城市,低值分布在经济欠发达城市;旅游产业发展指数逐年提升但升速较慢,空间分异特征较为明显,青岛旅游产业指数最高,吴忠旅游产业指数最低。第二,公共文化服务与旅游产业耦合协调水平较低,呈现明显的非同步特征,以中度失调类型为主;两者耦合协调的空间均衡程度不明显,西安耦合协调水平最高,商丘耦合协调水平最低。第三,公共文化服务与旅游产业耦合协调中心较为稳定,两者耦合协调的内部差异逐渐缩小,空间分布相对分散。第四,不同影响因素对黄河流域公共文化服务与旅游产业耦合协调的作用强度不同,科技创新>人口规模>消费能力>经济发展>财政支出。由此建议,从提升公共文化服务效能、构建高质量公共文化服务体系、丰富融合方式方法等方面采取措施,促进黄河流域公共文化服务与旅游产业的协调发展。

关键词：公共文化服务旅游产业耦合协调黄河流域

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An epigenetic view of developmental diseases: new targets, new therapies

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世界儿科杂志:英文版 2016年第3期12卷 291-297页

作者： pei Xie Li-qun Zang Xue-Kun Li Qiang Shu Institute of Genetics College of Life SciencesZhejiang University Children's Hospital Zhejiang University School of Medicine Institute of Translational Medicine School of MedicineZhejiang University

Background:Function of epigenetic modifications is one of the most competitive fields in life *** the past several decades,it has been revealed that epigenetic modifications play essential roles in development and diseases including developmental *** the present review,we summarize the recent progress about the function of epigenetic regulation,especially DNA and RNA modifi cations in developmental *** sources:Original research articles and literature reviews published in PubMed-indexed ***:DNA modifications including methylation and demethylation can regulate gene expression,and are involved in development and multiple diseases including Rett syndrome,Autism spectrum disorders,congenital heart disease and cancer,*** methylation and demethylation play important roles in RNA processing,reprogramming,circadian,and neuronal activity,and then modulate ***:DNA and RNA modifications play important roles in development and diseases through regulating gene *** components could serve as novel targets for the treatment of developmental diseases.

关键词： congenital heart disease development DNA modifi cation 5-hydroxymethylcytosine neurological disorders RNA modifi cation

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Luminescent properties of a new Nd^(3+)-doped complex with two different carboxylic acids and pyridine derivative

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Rare Metals 2013年第5期32卷 490-495页

作者： Yun-Xia Ye Li-Hua Wei Wei-Chen Mei Chen yin-qun Hua School of Mechanical Engineering Jiangsu University Institute of Laser Technology Jiangsu University School of Material Engineering Jiangsu University

A new Nd3＋-doped organic complex featuring two different perfluorinated carboxylic acids as the first ligand and pyridine derivative 2-amino-3-chloro-5-（tri- fluoromethyl）pyridine as the second ligand was designed and synthesized. Successful coordination between the ligands and central rare earth ions was confirmed by Fourier transform infrared spectroscopy （FT-IR） spectra, 1H nuclear magnetic resonance （1H NMR） spectra, and UV spectra, and the synthesized complex is inferred to be eight-coordinate structure. Solution of the complex dis- solved in DMSO-d6 was prepared and then its fluorescence spectrum, UV-Vis-NIR absorption spectrum, and fluorescence decay curve were tested. The fluorescent lifetime is about 7 txs. Based on the above experimental research, Judd-Ofelt analysis was carried out, and the results indi- cate that appropriate coordination environment around Nd3＋ in this solution results in a high fluorescent quantum efficiency 2 % and a large stimulated emission cross-section about 3.2 × 10^-20 cm^2 at 1,064 nm.

关键词： Nd Organic solution Liquid laser Quantum efficiency Judd-Ofelt theory

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XIAP as a prognostic marker of early recurrence of nonmuscular invasive bladder cancer

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Chinese Medical Journal 2007年第6期120卷 469-473页

作者： LI Ming SONG Tao yin Zhen-fei NA Yan-qun Department of Urology Peking University First Hospital Beijing 100034 China

Background Dysregulation of apoptosis has been implicated not only in carcinogenesis and tumor progression but also in tumor recurrence. We investigated whether the expression of X-linked inhibitor of apoptosis （XIAP） might predict early recurrence in patients with non-muscular invasive bladder cancer. Methods The cohort comprised 176 consecutive patients with primary superficial bladder cancer treated with transurethral resection. Immunohistochemical staining using the standard avidin-bioUn-peroxidase technique and RT-PCR were used to detect XIAP protein and mRNA expressions in cancer tissues. The relationship between XIAP expression and clinicopathological characteristics, cancer recurrence were analyzed. Results XIAP expression was observed in 108 cases （61.4%） and no expression in 68. There was no correlation between XIAP expression rate and the tumor pathological grade, but was an apparent trend toward the increased XIAP levels from well （G1） to poor （G3） differentiated cancer. Eighty-two （46.6%） patients experienced tumor recurrence at a mean of 28.6 months of the follow-up; 66 of them expressed XIAP （61.1%） and 16 were XIAP negative （23.5%）. Twelve patients presented with invasive disease at the time of relapse and all of them expressed XIAP. Patients without XIAP expression or with low tumor grades had significantly higher recurrence-free survival than those with XIAP expression （log rank test ,P=-0.0015） or high tumor grades （log rank test P〈0.001）. Multivariate analysis revealed that XIAP expression, tumor grade, and tumor number were independent predictors for the recurrence of non-muscular invasive bladder cancer （P=-0.004, 0.016, and 0.043, respectively）. Conclusions XIAP may be considered as a new independent prognostic marker for early recurrence of non-muscular invasive bladder cancer.

关键词： XIAP urinary bladder neoplasms recurrence

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