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Variations of Stable Carbon Isotopes of CH4 Emission from Three Typical Rice Fields in China

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Pedosphere 2017年第1期27卷 52-64页

作者： ZHANG Guangbin MA Jing YANG Yuting YU haiyang shi Yaping XU Hua State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) University of Chinese Academy of Sciences Beijing 100049(China)

Little is known about the stable carbon isotopes of methane(CH4) emitted(δ^(13)CH_(4emitted)) from permanently flooded rice fields and double rice-cropping *** CH4 emission and corresponding δ^(13)CH_(4emitted) under various field managements(mulching,water regime,tillage,and nitrogen(N) fertilization) were simultaneously measured in three typical Chinese rice fields,a permanently flooded rice field in Ziyang City,Sichuan Province,Southwest China,a double-rice cropping field in Yingtan City,Jiangxi Province,Southeast China,and a rice-wheat rotation field in Jurong City,Jiangsu Province,East China,from 2010 to *** showed different seasonal variations of δ^(13)CH_(4emitted) among the three fields during the rice-growing *** values of δ^(13)CH_(4emitted) were negatively correlated with corresponding CH4 emissions in seasonal variation and mean,indicating the importance of CH_4 production,oxidation,and transport associated with isotopic fractionation effects to the δ^(13)CH_(4emitted).Seasonal variations of δ^(13)CH_(4emitted) were slightly impacted by mulching cultivation,tillage,and N application,but highly controlled by ***,tillage,N application,and especially mulching cultivation had important effects on seasonal mean CH4 emissions and corresponding δ^(13)CH_(4emitted) with low emissions accompanied by high values of δ^(13)CH_(4emitted).Seasonal mean values of δ^(13)CH_(4emitted) from the three fields were similar,mostly ranging from —60‰ to — 50‰,which are well in agreement with previously published *** demonstrated that seasonal variations of δ^(13)CH_(4emitted) mainly depended on the changes in CH4 emission from rice fields and further indicated the important effects of methanogenic pathways,CH4 oxidation,and CH4 transport associated with isotope fractionation effects influenced by field managements on δ^(13)CH_(4emitted).

关键词： CH4排放稳定碳同位素中国西南部双季稻田同位素分馏效应地膜覆盖栽培季节变化甲烷氧化

施氮对郑麦366光合速率、花后干物质积累及产量的影响

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作物杂志 2024年第3期 127-132页

作者：张素瑜岳俊芹李向东靳海洋任德超杨明达邵运辉王汉芳方保停张德奇时艳华秦峰程红建河南省农业科学院小麦研究所/农业农村部中原地区作物栽培科学观测实验站/河南省小麦产量―品质协同提升工程研究中心河南郑州450002 商丘市农林科学院河南商丘476000

通过2年大田试验,分析不同施氮措施对郑麦366花后旗叶相对叶绿素含量(SPAD)、光合速率、花后干物质积累及产量的影响,探究最佳施氮量和施氮方式。设置4个施氮处理,分别为不施氮(N_(0))、基施纯氮210 kg/hm^(2)(N_(210))、基施纯氮150 kg... 详细信息

通过2年大田试验,分析不同施氮措施对郑麦366花后旗叶相对叶绿素含量(SPAD)、光合速率、花后干物质积累及产量的影响,探究最佳施氮量和施氮方式。设置4个施氮处理,分别为不施氮(N_(0))、基施纯氮210 kg/hm^(2)(N_(210))、基施纯氮150 kg/hm^(2)+拔节期追施纯氮60 kg/hm^(2)(N_(150+60))、基施纯氮150 kg/hm^(2)+拔节期追施纯氮120 kg/hm^(2)(N_(150+120))。结果表明,与其他氮肥处理相比,2018-2019、2019-2020年度N_(0)处理下灌浆期旗叶净光合速率、灌浆后期旗叶SPAD、花后干物质积累对籽粒产量的贡献率、千粒重和产量均显著降低。与N_(210)处理相比,N_(150+60)处理2018-2019年度灌浆末期小麦旗叶SPAD、花后干物质积累对籽粒产量的贡献率、千粒重及产量分别提高12.9%、9.7%、6.5%、1.6%,2019-2020年度分别提高16.3%、27.2%、6.3%、10.0%。与N_(150+120)处理相比,N_(150+60)处理显著降低2018-2019年度灌浆末期冬小麦的旗叶SPAD、灌浆期旗叶净光合速率,但2019-2020年度差异不显著,N_(150+60)处理显著提高2018-2019年度冬小麦的穗粒数、产量及2年的氮肥偏生产力。综合考虑小麦净光合效率、产量及氮肥生产效率,N_(150+60)处理是更适宜豫北平原的施氮方式。

关键词：小麦氮肥光合速率产量氮肥偏生产力

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氨法脱硫在硫回收尾气处理中的应用

广东化工 2017年第20期44卷 153-154页

作者：马少红张明成刘海洋程东风史彦辉陕西省长青能源化工有限公司陕西宝鸡721405

随着人们对环保要求越来越高,2015年颁布了《石油炼制工业污染物排放标准》(GB31570-2015),已建成的超优克劳斯硫回收已不能满足新的环保要求。本文介绍超优克劳斯尾气达标治理改造情况以及改造过程中出现的问题,结果表明采用的氨法脱... 详细信息

随着人们对环保要求越来越高,2015年颁布了《石油炼制工业污染物排放标准》(GB31570-2015),已建成的超优克劳斯硫回收已不能满足新的环保要求。本文介绍超优克劳斯尾气达标治理改造情况以及改造过程中出现的问题,结果表明采用的氨法脱硫工艺可以满足达标排放的要求。

关键词：超优克劳斯尾气处理氨法脱硫

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三苯二噁嗪功能性染料的合成及应用研究进展

化学研究 2022年第3期33卷 272-282页

作者：崔金海张予东石海洋胡新成商丘师范学院化学化工学院河南商丘476000 河南大学化学化工学院河南开封475004 开封大学材料与化工学院河南开封475004

归纳了对称结构、非对称结构三苯二噁嗪化合物及三苯二噁嗪聚合物作为太阳能电池敏化染料、n-型有机半导体材料、二向色染料、超级电容器材料的应用及合成特点,探讨了三苯二噁嗪化合物的两种成环机理,并展望了三苯二噁嗪功能性染料的未... 详细信息

归纳了对称结构、非对称结构三苯二噁嗪化合物及三苯二噁嗪聚合物作为太阳能电池敏化染料、n-型有机半导体材料、二向色染料、超级电容器材料的应用及合成特点,探讨了三苯二噁嗪化合物的两种成环机理,并展望了三苯二噁嗪功能性染料的未来发展方向。

关键词：三苯二噁嗪功能染料应用氧化闭环机理

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Voltage-dependent plasticity and image Boolean operations realized in a WOx-based memristive synapse

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Journal of Semiconductors 2021年第1期42卷 128-133页

作者： Jiajuan shi Ya Lin Tao Zeng Zhongqiang Wang Xiaoning Zhao haiyang Xu Yichun Liu Center for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education Northeast Normal UniversityChangchun 130024China

The development of electronic devices that possess the functionality of biological synapses is a crucial step towards neuromorphic *** this work,we present a WOx-based memristive device that can emulate voltage-dependent synaptic *** adjusting the amplitude of the applied voltage,we were able to reproduce short-term plasticity(STP)and the transition from STP to long-term *** stimulation with high intensity induced long-term enhancement of conductance without any decay process,thus representing a permanent memory ***,the image Boolean operations(including intersection,subtraction,and union)were also demonstrated in the memristive synapse array based on the above voltage-dependent *** experimental achievements of this study provide a new insight into the successful mimicry of essential characteristics of synaptic behaviors.

关键词： memristor artificial synapse short-term plasticity long-term potentiation image Boolean operations

电针对干眼大鼠角膜自噬相关蛋白调节作用的研究

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上海针灸杂志 2024年第6期43卷 675-683页

作者：杨延婷莫晓芬马睿琦杨光师雅君赵越纪海洋张丹郭浩东刘婕马晓芃上海市针灸经络研究所上海200030 复旦大学附属眼耳鼻喉科医院上海200030 上海中医药大学附属岳阳中西医结合医院上海200437

目的观察电针对干眼大鼠角膜自噬的调节作用。方法将雄性Sprague-Dawley(SD)大鼠随机分为正常组、模型组、电针组和假针组。除正常组外,其余3组均采用皮下注射东莨菪碱溶液配合吹风制备大鼠干眼模型。电针组和假针组造模后分别予电针及... 详细信息

目的观察电针对干眼大鼠角膜自噬的调节作用。方法将雄性Sprague-Dawley(SD)大鼠随机分为正常组、模型组、电针组和假针组。除正常组外,其余3组均采用皮下注射东莨菪碱溶液配合吹风制备大鼠干眼模型。电针组和假针组造模后分别予电针及假针刺干预。检测大鼠干预前后泪膜破裂时间和泪液分泌量,并评估角膜荧光素染色的分值;应用透射电镜观察大鼠角膜组织的超微结构;采用蛋白免疫印迹(Western blotting)技术检测大鼠角膜微管相关蛋白轻链3(microtubule-associatedprotein 1 light chain 3,LC3)、P62和Beclin-1的表达,应用实时聚合酶链式反应(real-time polymerase chain reaction,RT-PCR)技术检测角膜LC3 mRNA的表达。结果与正常组比较,模型组大鼠泪液分泌量降低,泪膜破裂时间缩短,角膜荧光素染色评分升高,差异均具有统计学意义(P0.05)。结论电针可以促进干眼大鼠角膜组织中自噬的发生,促进自噬可能是电针治疗干眼的潜在机制。

关键词：针刺疗法电针干眼角膜自噬大鼠

Photophysical properties of the Corrole photosensitizers

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Science China(Physics,Mechanics & Astronomy) 2010年第8期53卷 1491-1496页

作者： YOU LiLi SHEN Han shi Lei ZHANG GuoLiang LIU haiyang WANG Hui JI LiangNian State Key Laboratory of Optoelectronics Materials and Technologies Sun-Yat Sen UniversityGuangzhou 510275China Department of Chemistry South China University of TechnologyGuangzhou 510641China School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun-Yat Sen UniversityGuangzhou 510275China

The photophysical properties of a series of hydroxyl Corroles, Corrole-F, Corrole-Cl, Corrole-Br, Corrole-I and Corrole-2I, have been investigated by steady-state and time-resolved transient spectroscopy. The absorption spectra show a strong peak around 420 nm corresponding to B band and several weak Q absorption bands between 450 nm and 650 nm, exhibiting much stronger Q band absorption than that of porphyrin. The absorptions of these Corroles increase with the atom weight and the number of halogen atoms. All samples show similar fluorescence characteristics of an emission peak at 650 nm. The fluorescence intensities significantly decrease with the atom weight and the number of halogen atoms. The fluorescence quantum yield of Corrole-I is 0.947%, which is larger than that of Corrole-2I (0.381%). The fluorescence dynamics of the hydroxyl Corroles shows that both the fluorescence lifetime and the intersystem-crossing transition time of these Corroles decrease sharply with the increase of the atom weight and the number of halogen atoms, which may lead to the increase of the triplet state quantum yield. The heavy-atom effect on active oxygen of PDT has also been discussed by the end of this paper.

关键词： Corrole photophysical property heavy-atom effect PDT

Steam Exploded Peanut Shell Fiber as the Filler in the Rigid Polyurethane Foams

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Journal of Renewable Materials 2019年第11期7卷 1077-1091页

作者： Zehui Ju Qian He Tianyi Zhan haiyang Zhang Lin Sun Lu Hong Xinyi shi Xiaoning Lu College of Materials Science and Engineering Nanjing Forestry UniversityNanjing210037China College of Biology and the Environment Nanjing Forestry UniversityNanjing210037China.

In this study,steam exploded peanut shell fibers(SE-PSFs)were utilized to fabricate with rigid polyurethane foam(RPUF)in order to improve sound absorption performance and hydrothermal weather *** method of SE treatment,RPUF preparation and flame retardant treatment were selected to prepare SE-PSF/RPUF composites in this *** and mechanical properties including density,water absorption capacity,thickness swelling rate,compressive strength,thermal conductivity and average sound absorption coefficient of SE-PSF/RPUF were investigated and compared with the control(PRUF).The results showed that the density,water absorption capacity,thickness swelling rate and thermal conductivity showed an increasing trend with the increase of SE-PSFs *** strength of the composite material showed a downward trend with the increase of the SE-PSFs *** average sound absorption coefficient of the SE-PSFs/RPUF compared with PRUF significant increased,and the average sound absorption coefficient of the SE-PSFs/RPUF with SE-PSFs 40%was *** study getted the best ratio of flame retardants for 10%EG and 3%*** oxygen index was 35.56 vol%.

关键词： Steam explosion peanut shell fiber polyurethane composite flame retardant properties

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固体氧化物燃料电池电堆尾气燃烧稳定性研究

煤气与热力 2021年第7期41卷 32-36,S0043页

作者：李嘉瑞邹春姚青贾汇桥戴凌峰史海洋刘嘉诚华中科技大学煤燃烧国家重点实验室湖北武汉430074 浙江省健康智慧厨房系统集成重点实验室浙江宁波315336 宁波方太厨具有限公司浙江宁波315336

针对额定发电功率为1kW的固体氧化物燃料电池,采用IDIM模型,计算各实验工况的稳燃特性指数,判定实验工况的稳燃特性指数范围能否覆盖模拟工况(来自文献)的稳燃特性指数范围。若可以覆盖,则认为实验工况能够代表固体氧化物燃料电池运行... 详细信息

针对额定发电功率为1kW的固体氧化物燃料电池,采用IDIM模型,计算各实验工况的稳燃特性指数,判定实验工况的稳燃特性指数范围能否覆盖模拟工况(来自文献)的稳燃特性指数范围。若可以覆盖,则认为实验工况能够代表固体氧化物燃料电池运行过程中电堆尾气燃烧的真实情况。在此基础上,通过燃烧实验,验证实验燃烧器能否满足电堆尾气稳定燃烧。电堆尾气火焰传播速度的变化远大于尾气流速的变化,是难以实现尾气稳定燃烧的关键。相同电堆燃料利用率下,水碳比为3.0时电堆尾气的稳燃特性指数更低,离焰风险更高。实验工况的稳燃特性指数覆盖了模拟工况,并且充分考虑了高水碳比的情况。面积为0.0017 m^(2)的金属纤雏燃烧器能够满足固体氧化物燃料电池全工况下电堆尾气的稳定燃烧。

关键词：固体氧化物燃料电池火焰传播速度电堆尾气燃烧稳定性