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Chinese Science Bulletin 2012年第27期57卷 3586-3594页

作者： ZHU Na ZHAO JiuRu LI YongDong DING changqing XIA Han TANG Shuang ZHANG Zhong YU jingFeng CHEN jing FAN ZhaoJun KOU Zheng LI TianXian State Key Laboratory of Virology Wuhan Institute of Virology Chinese Academy of SciencesWuhan 430071China Ningbo Municipal Center for Disease Control and Prevention Ningbo 315010China College of Biology Beijing Forestry University Beijing 100083China

Poyang Lake is the largest inland freshwater lake in China and contains many species of wild birds and *** conducted a survey of avian influenza viruses in nine semi-artificial waterfowl farms in Poyang Lake during January to March of *** of 1036 cloacal swabs collected,three H3N2 and one H4N6 influenza viruses were isolated from healthy *** the isolates were genetically and phylogenetically *** analysis of putative HA cleavage sites showed that all the four isolates possessed the molecular characteristics(QTRGL for H3N2 viruses,PEKASR for H4N6 virus) of lowly pathogenic avian influenza(LPAI) *** phylogenetic analysis of the viral genomes showed that all four virus isolates clustered in the Eurasian clade of influenza *** M gene of the viruses possessed the highest homology with highly pathogenic H5N1 influenza *** addition,co-infection of H3N2 and H4N6 in the same farm was *** interestingly,we isolated two subtypes viruses(H3N2 and H4N6) and their progeny virus(H3N2) with evidence of genome reassortment from the same farm,in which the PB1 and PB2 gene segments of H4N6 replaced those of the H3N2 *** results of animal infection experiments showed that all the four isolated viruses were lowly pathogenic to chickens and not pathogenic to mice,which was consistent with the results of genetic analysis.

关键词：禽流感病毒病毒分离分子特征鄱阳湖野鸭亚型中国系统发育分析

鄂尔多斯盆地东部边界的构造学分析:以石楼北地区为例

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古地理学报 2024年第1期26卷 150-164页

作者：石婧何登发包洪平魏柳斌中国地质大学(北京)能源学院北京100083 中国石油长庆油田公司勘探开发研究院陕西西安710018

通常认为鄂尔多斯东部边界带由晋西挠褶带和离石断裂组成,但这一边界为残余边界,并非原始的沉积边界。文中以石楼北区域为例,过该区域构建了1条鄂尔多斯盆地东部盆-山尺度的区域地质大剖面,运用2D-Move软件进行构造演化的反演与正演模拟... 详细信息

通常认为鄂尔多斯东部边界带由晋西挠褶带和离石断裂组成,但这一边界为残余边界,并非原始的沉积边界。文中以石楼北区域为例,过该区域构建了1条鄂尔多斯盆地东部盆-山尺度的区域地质大剖面,运用2D-Move软件进行构造演化的反演与正演模拟,对其构造变形进行定量分析,并根据研究结果对鄂尔多斯盆地东部边界进行重新厘定。研究认为:(1)石楼北地区在加里东晚期受深部基底断裂活动影响,奥陶系膏盐岩层中形成盐滑脱褶皱,之后沉积石炭系—白垩系,至燕山期受到东西向的挤压应力,地层整体发生掀斜,最终在新生代吕梁隆起加速隆升,遭受差异风化剥蚀形成现今构造格局。(2)构建的区域地质大剖面现今长度为263.76 km,海拔最高可达2000 m,从加里东晚期到白垩纪地层缩短量为3.14 km,缩短率为1.18%,地层抬升高度为3.82 km。(3)根据地层、构造、演化特征对燕山运动期鄂尔多斯盆地的东部边界进行重新厘定,认为东部边界应向东延伸至吕梁隆起东侧。该成果可为鄂尔多斯盆地东缘范围、构造变形研究以及晋西挠褶带煤层气勘探开发提供参考与新思路。

关键词：鄂尔多斯盆地构造特征构造演化断层相关褶皱东部边界

中国海域沉积盆地咸水层二氧化碳地质封存潜力

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海洋地质与第四纪地质 2024年第3期44卷 98-114页

作者：陈建文王嘹亮王平康袁勇曹珂付玉通陆东宇杨长清李慧君王建强张银国龚建明孙晶赵化淋中国地质调查局青岛海洋地质研究所青岛266237 青岛海洋科技中心海洋矿产资源评价与探测技术功能实验室青岛266237 青岛市海洋地质碳封存工程研究中心青岛266237 青岛市海洋地质碳封存重点实验室青岛266237 中国地质调查局广州海洋地质调查局广州511458 中国地质调查局基础调查部北京100037

二氧化碳地质封存是二氧化碳捕集利用封存(CCUS)技术的关键环节,海域二氧化碳地质封存是将工业碳排放源或油气开发过程中捕集的二氧化碳,以超临界态注入到海底咸水层、废弃或开发中油气藏等地质体中,实现与大气长期隔离的过程。因远离... 详细信息

二氧化碳地质封存是二氧化碳捕集利用封存(CCUS)技术的关键环节,海域二氧化碳地质封存是将工业碳排放源或油气开发过程中捕集的二氧化碳,以超临界态注入到海底咸水层、废弃或开发中油气藏等地质体中,实现与大气长期隔离的过程。因远离人类居住地且有海水覆盖、具有“安全性高、环境风险小”特点,海域二氧化碳地质封存受到欧美等国家和地区的高度重视。本文在分析我国海域沉积盆地基本地质条件基础上,采用创新的模型体积法评价了我国海域沉积盆地咸水层二氧化碳地质封存潜力。研究表明,我国海域沉积盆地新生界厚度大,地壳稳定性较好,具有中低地温场特征,发育多套储碳-封盖组合,构造地层圈闭多,二氧化碳地质封存条件优越、咸水层封存潜力巨大。这将为我国海洋地质碳封存区带评价和目标区优选提供依据,对我国沿海省市碳达峰碳中和路径规划和离岸碳封存示范工程预研究具有重要意义。

关键词：二氧化碳地质封存中国海域沉积盆地模型体积法咸水层封存潜力

Regulation of rose petal dehydration tolerance and senescence by RhNAP transcription factor via the modulation of cytokinin catabolism

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Molecular Horticulture 2021年第1期1卷 45-59页

作者： jing Zou Peitao Lü Liwei Jiang Kun Liu Tao Zhang Jin Chen Yi Yao Yusen Cui Junping Gao changqing Zhang Department of Ornamental Horticulture China Agricultural UniversityBeijing 100193China College of Horticulture FAFU-UCR Joint Center for Horticultural Biology and MetabolomicsHaixia Institute of Science and TechnologyFujian Agriculture and Forestry UniversityFuzhou 350002China

Petals and leaves share common evolutionary origins but have different phenotypic characteristics,such as the absence of stomata in the petals of most angiosperm *** NAC transcription factor,NAP,is involved in ABA responses and regulates senescence-associated genes,and especially those that affect stomatal ***,the regulatory mechanisms and significance of NAP action in senescing astomatous petals is unclear.A major limiting factor is failure of flower opening and accelerated *** goal is to understand the finely regulatory mechanism of dehydration tolerance and aging in rose *** functionally characterized RhNAP,an AtNAP-like transcription factor gene that is induced by dehydration and aging in astomatous rose ***(CKs)are known to delay petal senescence and we found that a cytokinin oxidase/dehydrogenase gene 6(RhCKX6)shares similar expression patterns with *** of RhNAP or RhCKX6 expression in rose petals by virus induced gene silencing markedly reduced petal dehydration tolerance and delayed petal *** CK levels in RhNAP-or RhCKX6-silenced petals were significantly higher than those of the ***,RhCKX6 expression was reduced in RhNAP-silenced *** suggests that the expression of RhCKX6 is regulated by *** one-hybrid experiments and electrophoresis mobility shift assays showed that RhNAP binds to the RhCKX6 promoter in heterologous in vivo system and in vitro,***,the expression of putative signal transduction and downstream genes of ABA-signaling pathways were also reduced due to the repression of PP2C homolog genes by RhNAP in rose *** together,our study indicates that the RhNAP/RhCKX6 interaction represents a regulatory step enhancing dehydration tolerance in young rose petals and accelerating senescence in mature petals in a stomata-independent manner.

关键词： Rosa hybrida RhNAP RhCKX6 Dehydration Petal senescence Cytokinins

指舞运动在经桡冠状动脉介入术后预防桡动脉闭塞的效果评价

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蚌埠医学院学报 2024年第2期49卷 258-263页

作者：王静邵先安艾瑞徐良李凡刘双双陈梦杰刘静静叶长青解放军联勤保障部队第902医院心肾内科安徽蚌埠233000

目的:探索经桡介入术后的指舞运动对于桡动脉闭塞(RAO)的预防效果。动态观测病人术后桡动脉血流动力学参数变化情况,分析指舞运动对于早期和晚期RAO的影响。方法:纳入择期行冠状动脉造影及介入治疗的171例病人,随机分为对照组89例和观察... 详细信息

目的:探索经桡介入术后的指舞运动对于桡动脉闭塞(RAO)的预防效果。动态观测病人术后桡动脉血流动力学参数变化情况,分析指舞运动对于早期和晚期RAO的影响。方法:纳入择期行冠状动脉造影及介入治疗的171例病人,随机分为对照组89例和观察组82例。观察组在术后开展3 h的指舞运动,对照组无上述操作。分别在穿刺前、术后第3天和术后1个月检测2组病人桡动脉内膜厚度、直径以及血流速度峰值等指标,动态观测上述指标的变化,分析早期和晚期RAO情况。结果:2组病人的年龄、性别、吸烟、合并疾病等临床特征差异均无统计学意义(P>0.05)。观察组桡动脉直径以及内膜厚度在术前、术后3 d及术后1个月与同时期对照组相比差异均无统计学意义(P>0.05),观察组病人的桡动脉血流速度峰值在术前与对照组病人相比差异无统计学意义(P>0.05),但观察组桡动脉血流速度峰值在术后3 d及术后1个月均高于对照组(P0.05)。结论:指舞运动有助于提升早期桡动脉血流速度,能显著降低冠状动脉造影术后早期和晚期RAO的发生,且未明显影响不良反应发生率。术后指舞运动是一种简便、安全有效的RAO防治策略。

关键词：指舞运动冠心病冠脉介入治疗桡动脉闭塞

Study on Operation Management of Grid-connected Wind Generation Units Based on Intelligent Theory

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Study on Operation Management of Grid-connected Wind Generat...

经肛移除标本的腹腔镜直肠癌根治术39例回顾性分析

第30届中国控制与决策会议

作者： changqing Liu Xin jing Yueying Yang Jinzhou Power Supply Branch State Grid Liaoning Electric Power Supply Co.Ltd

Wind power can provide pollution free power, and occupies a considerable proportion in power grid, but because the wind speed and wind direction is changing, its operating conditions and the safety and reliability of the entire power grid is directly related. With the continuous improvement of the capacity of wind farms, the impact on the grid will become more and more obvious, reliable wind power grid control technology research becomes necessary. This paper studies the characteristics of decentralized wind power plant electrical system. Due to the small number of wind turbines and the lack of power distribution, the integrated design of wind turbine system is difficult to realize. Through the design of integrated control system, centralized control to achieve decentralized wind turbine operation. Based on the characteristics of decentralized power plant, decentralized wind power plant is directly connected with the power grid, the wind turbine is running independently, without centralized power flow control, distributed wind farm integrated control system design.

关键词： Wind generator Operation Management Intelligent Theory

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腹部外科 2019年第4期32卷 265-269页

作者：禚洪庆张继准李辰生刘路光方振蔡腾飞董康迪商亮王金申靖昌庆李乐平山东省立医院胃肠外科

目的探讨免切口经肛移除标本的腹腔镜直肠癌根治术的适用性、安全性和短期疗效。方法回顾性分析2016年8月至2018年7月在山东省立医院胃肠外科行腹腔镜直肠癌根治术的879例病人的临床资料,根据肿瘤最大径、T分期、体质量指数等纳入排除... 详细信息

目的探讨免切口经肛移除标本的腹腔镜直肠癌根治术的适用性、安全性和短期疗效。方法回顾性分析2016年8月至2018年7月在山东省立医院胃肠外科行腹腔镜直肠癌根治术的879例病人的临床资料,根据肿瘤最大径、T分期、体质量指数等纳入排除标准筛选病例。根据移除标本方式的不同分为两组,免切口经肛移除标本的病人作为观察组(经肛免切口组),经腹小切口移除标本的病人作为对照组(常规腹腔镜组),分析其临床病理资料、围手术期指标及术后并发症。结果经肛免切口组39例病人,常规腹腔镜组77例病人。两组病人的性别、年龄和T分期差异无统计学意义(P>0.05),但两组病人的体质量指数、肿瘤最大径、肿瘤下缘与齿状线距离差异有统计学意义(P0.05),经肛免切口组病人的术中出血、术后疼痛评分、术后C反应蛋白水平、排气时间和住院天数等均优于常规腹腔镜组(P0.05)。结论免切口经肛移除标本的腹腔镜直肠癌根治术适用肿瘤较小、非重度肥胖的中高位直肠癌病人;与常规腹腔镜直肠癌根治术相比,其手术安全,创伤更小,术后病人恢复更快,不增加术后短期并发症风险。

关键词：直肠肿瘤腹腔镜经自然腔道取标本肛管治疗结果

植物精油成分气相色谱保留指数的全息定量构效关系

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色谱 2024年第4期42卷 380-386页

作者：郭锐焦龙胡祖彪王清臣钟汉斌景明利西安石油大学化学化工学院陕西西安710065 中国石油川庆钻探工程有限公司长庆钻井总公司陕西西安710016 西安石油大学电子工程学院陕西西安710065

气相色谱保留指数(RI)是色谱分析中的重要参数,但通过实验获取RI值的过程较为繁琐,需要建立一种简便、高效、准确的模型来预测RI值。本文搜集了60种植物精油成分的RI实验值,构建了精油成分化合物的结构性质与RI值之间的全息定量构效关系... 详细信息

气相色谱保留指数(RI)是色谱分析中的重要参数,但通过实验获取RI值的过程较为繁琐,需要建立一种简便、高效、准确的模型来预测RI值。本文搜集了60种植物精油成分的RI实验值,构建了精油成分化合物的结构性质与RI值之间的全息定量构效关系(HQSAR)模型。当碎片大小(fragment size)、碎片特征(fragment distinction)和全息长度(hologram length)模型参数分别设置为“1~4”、“C,Ch”和199时,可以建立最优HQSAR模型。利用外部测试集验证和留一交叉验证对模型进行检验,经外部测试集验证的预测均方根误差(RMSEP)、预测决定系数(Q_(F3)^(2))、一致性相关系数(CCC)和平均相对误差(MRE)分别为40.45、0.984、0.968和2.20%;经留一交叉验证的交叉验证均方根误差(RMSECV)和MRE分别为72.56和4.17%。此外,HQSAR模型的分子贡献图表明,芳香族化合物的烷基链在连接了羟基基团后,其RI值会增大;脂肪族化合物中存在的长链烷基也会导致RI值增大。研究结果表明,所建立的HQSAR模型能够用于预测植物精油成分的RI值,并为其他精油成分RI值的预测提供可靠依据。

关键词：全息定量构效关系气相色谱保留指数植物精油分子贡献图

Measurement of the neutron total cross section of^(9)Be at the Back-n white neutron source of CSNS

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Chinese Physics C 2024年第8期48卷 140-152页

作者： Jiangbo Bai jingyu Tang Liqun Shi Yonghao Chen Han Yi Jie Bao Yu Bao Ping Cao Haolei Chen Zhen Chen Zengqi Cui Ruirui Fan changqing Feng Keqing Gao Xiaolong Gao MinHao Gu Changcai Han Guozhu He Yongcheng He Yang Hong Yiwei Hu Hanxiong Huang Xiru Huang Haoyu Jiang Wei Jiang Zhijie Jiang Hantao jing Ling Kang Bo Li Chao Li Jiawen Li Qiang Li Xiao Li Yang Li Jie Liu Shubin Liu Ze Long Guangyuan Luan Changjun Ning Mengchen Niu Binbin Qi Jie Ren Xichao Ruan Zhaohui Song Kang Sun Zhijia Sun Zhixin Tan Xinyi Tang Binbin Tian Lijiao Wang Pengcheng Wang Zhaohui Wang Xiaoguang Wu Xuan Wu Likun Xie Xiaoyun Yang Li Yu Tao Yu Yongji Yu Guohui Zhang Linhao Zhang Qiwei Zhang Xianpeng Zhang Yuliang Zhang Zhiyong Zhang Luping Zhou Zhihao Zhou Kejun Zhu Institute of Modern Physics Fudan UniversityShanghai 200433China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026China Sate Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China

The neutron total cross section data of^(9)Be are essential in the nuclear structure model research of light nuclei and nuclear power *** neutron total cross section of^(9)Be in the 0.3 eV−120 MeV energy region has been measured using time-of-flight and transmission methods with the Neutron Total Cross Sectional Spectrometer(NTOX)based on the multi-cell fast fission chamber at the China Spallation Neutron Source(CSNS)-Back-n white neutron source(Back-n).The fission count-neutron energy distributions of ^(235)U and ^(238)U without samples and with Be samples with three thicknesses were measured in the double-bunch operation mode for a beam power of 100 *** Bayesian method was used to eliminate the influence of the double-bunch problem on neutron measurement in the energy region above 10 *** neutron total cross section of^(9)Be results was consistent with ENDF/B-VIII.0 evaluation library data in the 0.3 eV−20 MeV energy *** the energy ranges of 0.3 eV to 10 keV and 0.01 to 20 MeV,the deviations between our results and the evaluation results of ENDF/B-VIII.0 were within 2.5%and 15%,*** the resonance energy region,the measured resonance energies in our experiment were 0.63,0.82,and 2.8 MeV,*** results showed that the total cross section uncertainties of three Be samples were within 2.2%in the energy region below 1 *** total cross section uncertainty of 30 mm Be from ^(235)U was the smallest and less than 5%in the energy region of 0.3 eV−120 *** results of this experiment can provide technical support for further data analysis and related nuclear data evaluation.

关键词： ^(9)Be neutron total cross section CSNS Back-n time-of-flight method transmission method multi-cell fast fission chamber

中-晚奥陶世牙形石属Pygodus Lamont et Lindström和Periodon Hadding的形态演化及其生物地层学意义

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微体古生物学报 2024年第1期41卷 28-44页

作者：樊静静景秀春马占荣李士虓中国地质大学(北京)地球科学与资源学院北京100083 现代古生物学和地层学国家重点实验室中国科学院南京地质古生物研究所南京210008 中国石油长庆油田分公司勘探事业部南京2100083

本文系统梳理了中-晚奥陶世全球广泛分布的两个牙形石属Pygodus Lamontet Lindström,1957和Periodon Hadding, 1913已命名种的形态特征,清理出这两属目前的有效种,探讨了属内演化关系。认为Pygodus属的特征分子Pa分子表现出齿瘤小型化... 详细信息

本文系统梳理了中-晚奥陶世全球广泛分布的两个牙形石属Pygodus Lamontet Lindström,1957和Periodon Hadding, 1913已命名种的形态特征,清理出这两属目前的有效种,探讨了属内演化关系。认为Pygodus属的特征分子Pa分子表现出齿瘤小型化、密集化且齿瘤列数量先减少后增加的演化趋势, Pb分子表现出细齿密集化、增量化和倾斜化的趋势, S分子的细齿仅表现为密集化和增量化的趋势;Periodon属的特征分子Pa和Pb表现出前齿突上细齿逐步增量化的进化特征, M分子基部前缘细齿数量和S分子主齿与最大细齿间的小齿数量虽然也有增加的特点,但该特征并不稳定。实践上, Pygodus属Pa分子齿瘤列的数量和Periodon属Pa及Pb分子前齿突细齿的数量是这两属最重要的定种依据。基于此演化认识,对产自鄂尔多斯盆地西缘台地边缘相区棋探9井达瑞威尔阶顶部的牙形石开展了系统的分类学和生物地层学工作。在连续采集的15件样品中共获得527枚牙形石,鉴定后归入13属20种,以Pygodus和Periodon占绝对优势,可识别出2个生物带:Pygodusserra带和Pygodus anserinus带。此序列可用于检验归纳出的两属属内演化认识和前人据此建立的化石带、化石亚带及化石超带的全球可对比性。经对比,认为基于Pygodus建立的生物带和生物亚带具有区域和全球可对比性,但基于Periodon建立的生物超带穿时性明显。

关键词：牙形石生物地层台地边缘相达瑞威尔阶奥陶系鄂尔多斯盆地