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叶面喷施营养元素与植物生长调节剂对桑葚的影响

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中国果树 2024年第10期 77-85页

作者：杨婧陈泉张淑康段振刚重庆三峡农业科学院 404155 重庆三峡学院生物与食品工程学院

明确叶面喷施营养元素与植物生长调节剂对桑葚落果、果实外观品质及生理特性的影响,为营养元素和植物生长调节剂在桑葚上的实际应用提供参考依据。分别在初花期、盛花期和末花期叶面喷施倍珈美(T1)、流体钙(T2)、KH_(2)PO_(4)(T3)、中... 详细信息

明确叶面喷施营养元素与植物生长调节剂对桑葚落果、果实外观品质及生理特性的影响,为营养元素和植物生长调节剂在桑葚上的实际应用提供参考依据。分别在初花期、盛花期和末花期叶面喷施倍珈美(T1)、流体钙(T2)、KH_(2)PO_(4)(T3)、中微量元素肥(T4)、优立锌(T5)、2,4-D(T6)、对氯苯氧乙酸(T7)、NAA(T8)、芸苔素内酯+KH_(2)PO_(4)+GA(T9),以喷施清水为对照(CK)。在处理结束后5~32 d调查落果数量;在处理后第20 d收集正常发育的果实,测定其外观品质(单果重、纵径、横径、果形指数、果实硬度)、内源激素(IAA、GA、CTK、ABA)含量、酶(SOD、POD、PPO、PAL、CAT)活性以及矿质元素(全N、全P、全K、Ca、Mg)含量。结果表明,T7处理在调查时间范围内落果率为0,保果效果最佳;其次是T5处理,落果率峰值出现的时间比CK晚9 d,累计落果率比CK低81.33%;T9处理后11 d达到落果率峰值,累计落果率比CK高49.21%,处理后17 d果实落光;T8处理与CK均在处理后17 d达到落果率峰值;其余5个处理均有不同程度的落果,落果率峰值出现的时间均比CK晚3 d。T5处理对果实外观品质的影响不显著;T7处理的果实横径、硬度分别比CK大17.12%、83.92%,且差异显著;其余处理整体有降低果实外观品质的趋势。T3、T4、T8处理均显著提高了果实4种内源激素含量,但其IAA/ABA、(IAA+GA+CTK)/ABA比值均低于CK;T5、T7处理显著提高了果实IAA、ABA含量,但降低了GA/ABA、CTK/ABA、(IAA+GA+CTK)/ABA比值;T6处理显著提高了果实GA、CTK、ABA含量,但其IAA含量略低于CK。T5、T7处理显著增强了果实SOD、PPO、CAT活性;T6处理显著降低了果实SOD、POD、PAL、CAT活性。T6处理显著降低了果实全N、全K、Ca、Mg含量,其余处理均显著提高了果实Ca含量,其中T5、T7处理的果实Ca含量均较高,其全N、全K、Mg含量整体较为居中,全P含量均偏低。因此,叶面喷施0.25 mL/L Zn元素和10 mg/L对氯苯氧乙酸处理可有效降低桑葚落果率,稳定或提升果实外观品质,生产上可用作长果桑保果措施。

关键词：桑葚营养元素植物生长调节剂生理特性

A New Oogenus of Dendroolithidae from the Late Cretaceous in the Quyuangang Area,Henan Province,China

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Acta Geologica Sinica(English Edition) 2019年第2期93卷 477-478页

作者： HE Qing zhang shukang XING Lida JIANG Qin AN Yanfei YANG Sen School of Resources and Environmental Engineering Anhui University Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences School of the Earth Sciences and Resources China University of Geosciences

Objective The oofamily Dendroolithidae is elliptical or oblate eggs with loosely arranged dendritic eggshell units and large cavities between eggshell units (zhang et al., 2018).Dendroolithidae is represented by two oogenera,Dendroolithus (Zhao Zikui and Li Zuocong, 1988), and Placoolithus (Zhao Hong and Zhao Zikui, 1998)according to the latest classification (zhang et al., 2018).

关键词： New Oogenus the Late Cretaceous Henan Province

Safety-Critical Trajectory Tracking for Mobile Robots With Guaranteed Performance

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IEEE/CAA Journal of Automatica Sinica 2024年第9期11卷 2033-2035页

作者： Wentao Wu Di Wu Yibo zhang shukang Chen Weidong zhang Department of Automation Shanghai Jiao Tong UniversityShanghai 200240China Department of Information and Communication Engineering Hainan UniversityHaikou 570288China

Dear Editor,This letter considers a collision-free trajectory tracking problem for performance-guaranteed mobile robots(MRs)subject to *** propose a safety-critical performance-guaranteed trajectory tracking method based on control barrier functions(CBFs).First,an auxiliary system is established to generate the non-negative signals for inflexible bounds such that the performance constraints are not violated when avoiding obstacles.

关键词： constraints bounds collision

Upgrading CO_(2) into acetate on Bi_(2)O_(3)@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis

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SusMat 2023年第2期3卷 235-247页

作者： Xiaojing Liu Kang zhang Yidan Sun shukang zhang Zhenyu Qiu Tianshun Song Jingjing Xie Yuping Wu Yuhui Chen State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech UniversityNanjingChina School of Energy Science and Engineering Nanjing Tech UniversityNanjingChina College of Biotechnology and Pharmaceutical Engineering Nanjing Tech UniversityNanjingChina College of Chemical Engineering Nanjing Tech UniversityNanjingChina

Upgrading of atmospheric CO_(2) into high-value-added acetate using renewable electricity via electrocatalysis solely remains a great ***,inspired by microbial synthesis via biocatalysts,we present a coupled system to produce acetate from CO_(2) by bridging inorganic electrocatalysis with microbial synthesis through formate intermediates.A 3D Bi_(2)O_(3)@CF integrated electrode with an ice-sugar gourd shape was fabricated via a straightforward hydrothermal synthesis strategy,wherein Bi_(2)O_(3) microspheres were decorated on carbon *** ice-sugar gourd-shaped architecture endows electrodes with multiple structural advantages,including synergistic contribution,high mass transport capability,high structural stability,and large surface ***,the resultant Bi_(2)O_(3)@CF exhibited a maximum Faradic efficiency of 92.4%at−1.23 V versus Ag/AgCl for formate generation in 0.5 M KHCO_(3),exceeding that of Bi_(2)O_(3)/CF prepared using a conventional electrode preparation *** from the high formate selectivity,unique architecture,and good biocompatibility,the Bi_(2)O_(3)@CF electrode attached with enriched CO_(2)-fixing electroautotrophs served as a *** a result,a considerable acetate yield rate of 0.269±0.009 g L^(−1) day^(−1)(a total acetate yield of 3.77±0.12 g L^(−1) during 14-day operation)was achieved in the electrochemical–microbial system equipped with Bi_(2)O_(3)@CF.

关键词： acetate Bi_(2)O_(3)@CF CO_(2)conversion electrocatalysis-microbial synthesis formate

Dinosaur diversity during the transition between the middle and late parts of the Late Cretaceous in eastern Shandong Province,China:Evidence from dinosaur eggshells

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Chinese Science Bulletin 2013年第7期58卷 4663-4669页

作者： ZHAO ZiKui zhang shukang WANG Qiang WANG XiaoLin Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences

The record of dinosaur eggs from the Upper Cretaceous Wangshi Group in eastern Shandong Province,China shows that the dinosaur species represented by elongatoolithids were present from the middle to the late Late Cretaceous,whereas those represented by the dictyoolithids and spheroolithids became extinct in the middle Late Cretaceous and the new species represented by ovaloolithids appeared in the late Late *** eggshell conductance of water vapor is over 4 to over 115 times higher in spheroolithids and the dictyoolithids than in elongatoolithids and ovaloolithids,indicating that eggs of the first two oofamilies required higher humidity during *** on the18O record as preserved in eggshell,a change from relatively humid to relatively dry climatic conditions can be assumed to have taken place during the transition between the middle and late parts of the Late *** is reasonable to suggest that the change in climate was the cause of the dinosaur diversity.

关键词：恐龙蛋壳晚白垩世山东省多样性中国中东部证据后期

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An oviraptorid preserved atop an embryo-bearing egg clutch sheds light on the reproductive biology of non-avialan theropod dinosaurs

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Science Bulletin 2021年第9期66卷 947-954,M0004页

作者： Shundong Bi Romain Amiot Claire Peyre de Fabrègues Michael Pittman Matthew C.Lamanna Yilun Yu Congyu Yu Tzuruei Yang shukang zhang Qi Zhao Xing Xu Centre for Vertebrate Evolutionary Biology Institute of PalaeontologyYunnan UniversityKunming 650091China Department of Biology Indiana University of PennsylvaniaIndianaPA 15705USA Univ Lyon Univ Lyon 1ENSLCNRSLGL-TPEVilleurbanneF-69622France Vertebrate Palaeontology Laboratory Division of Earth and Planetary ScienceThe University of Hong KongHong KongChina Section of Vertebrate Paleontology Carnegie Museum of Natural HistoryPittsburghPA 15213USA Yuanpei College Peking UniversityBeijing 100871China Division of Paleontology American Museum of Natural HistoryNew YorkNY 10024USA Key Laboratory of Vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China Center for Excellence in Life and Paleoenvironment Chinese Academy of SciencesBeijing 100044China

Recent studies demonstrate that many avialan features evolved incrementally prior to the origin of the group,but the presence of some of these features,such as bird-like brooding behaviours,remains contentious in non-avialan *** we report the first non-avialan dinosaur fossil known to preserve an adult skeleton atop an egg clutch that contains embryonic *** preserved positional relationship of the adult to the clutch,coupled with the advanced growth stages of the embryos and their high estimated incubation temperatures,provides strong support for the brooding ***,embryos in the clutch are at different developmental stages,suggesting the presence of asynchronous hatching—a derived feature even among crown-group birds—in non-avialan *** findings demonstrate that the evolution of reproductive biology along bird-line archosaurs was a complex rather than a linear and incremental process,and suggest that some aspects of non-avialan theropod reproduction were unique to these dinosaurs.

关键词： Oviraptorosauria Cretaceous Clutch Brooding Embryos Asynchronous hatching

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安徽省潜山盆地发现恐龙蛋化石

中国地质 2022年第4期49卷 1346-1347页

作者：陈忠良何情张蜀康程小青安徽省地质调查院安徽合肥230001 合肥工业大学资源与环境工程学院安徽合肥230009 安徽大学资源与环境工程学院安徽合肥230601 中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室江苏南京210008 中国科学院古脊椎动物与古人类研究所中国科学院脊椎动物演化与人类起源重点实验室北京100044 天柱山世界地质公园安徽潜山246300

1研究目的(Objective)潜山盆地是安徽省内多个中—新生代红层盆地之一。天柱山世界地质公园坐落于盆地西侧。盆地内发育有完整的从中生代白垩纪至新生代古近纪的冲积扇相—河流相—湖泊相红色碎屑岩沉积。盆地内多处已发现新生代早期哺... 详细信息

1研究目的(Objective)潜山盆地是安徽省内多个中—新生代红层盆地之一。天柱山世界地质公园坐落于盆地西侧。盆地内发育有完整的从中生代白垩纪至新生代古近纪的冲积扇相—河流相—湖泊相红色碎屑岩沉积。盆地内多处已发现新生代早期哺乳动物化石,如古新世潜山动物群,是亚洲为数不多的早、中古新世脊椎动物化石记录之一。但一直以来,潜山盆地没有中生代爬行动物化石的报道,特别是与恐龙相关的恐龙骨骼、恐龙蛋和恐龙足迹化石未见报道。

关键词：世界地质公园冲积扇相中—新生代红层盆地湖泊相爬行动物化石新生代早期古新世

(4-羟基苯基)甲基苄基硫鎓六氟锑酸盐的合成及表征

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影像科学与光化学 2016年第6期34卷 564-568页

作者：刘安昌余彩虹庞玉莲张树康董元海余玉武汉工程大学绿色化工过程省部共建教育部重点实验室湖北省新型反应器与绿色化学工艺重点实验室湖北武汉430074 湖北固润科技股份有限公司湖北武汉430074

以4-羟基苯硫酚和氯苄为原料、三乙胺为缚酸剂,制备了4-苄硫基苯酚;4-苄硫基苯酚在甲苯溶液中,经硫酸二甲酯甲基化制备了(4-羟基苯基)甲基苄基硫鎓硫酸盐;室温甲醇溶剂中,与六氟锑酸钠离子进行交换合成了目的产物(4-羟基苯基)甲基苄基... 详细信息

以4-羟基苯硫酚和氯苄为原料、三乙胺为缚酸剂,制备了4-苄硫基苯酚;4-苄硫基苯酚在甲苯溶液中,经硫酸二甲酯甲基化制备了(4-羟基苯基)甲基苄基硫鎓硫酸盐;室温甲醇溶剂中,与六氟锑酸钠离子进行交换合成了目的产物(4-羟基苯基)甲基苄基硫鎓六氟锑酸盐。通过紫外光谱和核磁共振测定,对产物进行了结构鉴定。总收率大于75%。

关键词：紫外光引发剂硫鎓盐 4-羟基苯硫酚

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聚合物复合材料的摩擦学行为影响因素

塑料 2020年第3期49卷 134-138页

作者：张树康车清论郭丽和赵福燕张嘎张建军王进青岛理工大学机械与汽车工程学院山东青岛266000 中国科学院兰州化学物理研究所固体润滑国家重点实验室甘肃兰州730000

随着现代汽车和高端装备技术的迅猛发展,众多运动机构使役工况愈加严苛,使摩擦副经常处于混合润滑甚至边界润滑区间运转,因此,对材料的可靠性和使用寿命提出了更高的要求。聚合物复合材料由于具有优异的自润滑特性、高化学稳定性和性能... 详细信息

随着现代汽车和高端装备技术的迅猛发展,众多运动机构使役工况愈加严苛,使摩擦副经常处于混合润滑甚至边界润滑区间运转,因此,对材料的可靠性和使用寿命提出了更高的要求。聚合物复合材料由于具有优异的自润滑特性、高化学稳定性和性能可设计性,已被广泛应用于水利、水电、航运、海洋作业等高端装备中,因此,设计制备高性能聚合物自润滑材料,研究其摩擦学性能及机理具有重要的现实意义。摩擦学的理论和实践表明,聚合物复合材料-金属配副界面生成转移膜的结构与性能与材料的宏观摩擦学行为密切相关,而且影响转移膜界面生长的物理化学作用极其复杂,除复合材料本身的微观结构外,速度、载荷、润滑介质等工况参数均对聚合物复合材料的摩擦和磨损具有重要的影响。文章综述了聚合物复合材料的微观结构和工况参数对其摩擦学性能的影响规律,分析了填料的尺寸和含量、填料与聚合物基体的界面状态,以及摩擦副界面物理化学作用和转移膜生长的影响机制。最后,结合摩擦界面纳米结构的最新研究进展,提出了聚合物复合材料摩擦学研究的新思路。

关键词：聚合物复合材料摩擦学微观结构摩擦条件转移膜摩擦化学