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贵阳市不同城市景观类型鸟类物种多样性分析

贵州林业科技 2024年第2期52卷 63-67页

作者：程绍传晏玉莹冉景丞吴江明杨杰黄小龙贵州省林业科学研究院贵州贵阳550005 贵州师范大学生命科学学院贵州贵阳550025 贵州省林业科学研究院西南喀斯特山地生物多样性保护国家林业和草原局重点实验室贵州贵阳550005

快速城镇化迫使鸟类栖息地被隔离成不同类型的景观斑块,开展不同景观鸟类栖息地研究对鸟类的保护和管理至关重要。本研究以贵阳城区及周边为研究区域,基于样带法研究不同景观类型的鸟类群落特征,将贵阳市城市景观分成6个景观类型,对不... 详细信息

快速城镇化迫使鸟类栖息地被隔离成不同类型的景观斑块,开展不同景观鸟类栖息地研究对鸟类的保护和管理至关重要。本研究以贵阳城区及周边为研究区域,基于样带法研究不同景观类型的鸟类群落特征,将贵阳市城市景观分成6个景观类型,对不同景观类型鸟类多样性比较研究。结果表明:(1)不同景观类型鸟类Shannon-Wiener多样性:城市森林>湿地—水域>乡村—耕地—果园>城市绿地>荒山—灌丛>城市建筑;(2)不同景观类型间相对丰度较高的物种存在一定的差异;(3)珍稀濒危物种栖息地主要以城市森林、湿地—水域为主。鸟类对城市景观具备一定的适应性,但不同景观类型之间存在一定的差异。因此,持续开展生物多样性保护是人与自然和谐共生的有力措施。

关键词：鸟类多样性样带法城市景观贵阳

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集束化护理在脑卒中后睡眠障碍中的应用效果

中外医药研究 2023年第30期2卷 123-125页

作者：郭佳莹王俏芝夏彩金李可迪严玉英广州中医药大学第一附属医院急诊病区广东广州510405

目的:探讨集束化护理在脑卒中后睡眠障碍中的应用效果。方法:选取2022年10月—2023年3月广州中医药大学第一附属医院收治的脑卒中后睡眠障碍患者104例作为研究对象,以随机数字表法分为两组,各52例。对照组采用综合护理,试验组采用集束... 详细信息

目的:探讨集束化护理在脑卒中后睡眠障碍中的应用效果。方法:选取2022年10月—2023年3月广州中医药大学第一附属医院收治的脑卒中后睡眠障碍患者104例作为研究对象,以随机数字表法分为两组,各52例。对照组采用综合护理,试验组采用集束化护理。比较两组护理效果。结果:护理后,试验组匹兹堡睡眠质量指数量表、爱泼沃斯量表评分低于对照组,总睡眠时间、深睡眠时间、浅睡眠时间、快速眼动睡眠时间及觉醒次数优于对照组,差异有统计学意义(P<0.05)。结论:集束化护理在脑卒中后睡眠障碍中的应用效果显著,能够改善患者睡眠质量与睡眠进程。

关键词：脑卒中睡眠障碍集束化护理

Effect of heating rate on the electrochemical performance of MnO_X@CNF nanocomposites as supercapacitor electrodes

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Chinese Science Bulletin 2014年第16期59卷 1832-1837页

作者： Lin Shi Haiyong He yan Fang yuying Jia Bin Luo Linjie Zhi National Center for Nanoscience and Technology

Carbon nanofibers(CNFs)and MnOX@CNF nanocomposites(MCNFs)are fabricated by electrospinning and investigated as free-standing electrodes for *** work presents the effect of heating rate during carbonization on the electrochemical behavior of the as-prepared MCNFs electrodes in 6 mol/L KOH *** show that the MCNFs electrodes carbonized by relatively slower heating rate exhibit higher specific *** electronic conductivity of the slow heated MCNFs electrodes is better than that of the fast heated electrodes due to the better crystallinity of the MnOXnanoparticles and the graphitic carbon layers forming on the surface of the Mn-loaded *** MCNFs electrodes demonstrate elevated rate capability and improved cycling performance without adding any polymer binder or electronic conductor.

关键词：升温速率复合材料氧化锰 CNF 电化学性能超级电容器电极碳纳米纤维

Electrochemical Biorefinery toward Chemicals Synthesis and Bio-Oil Upgrading from Lignin

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Engineering 2023年第8期27卷 178-198页

作者： Rui Hu yuying Zhao Chen Tang yan Shi Gang Luo Jiajun Fan James H.Clark Shicheng Zhang Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3)Department of Environmental Science and EngineeringFudan UniversityShanghai 200438China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Circa Renewable Chemistry Institute Green Chemistry Center of ExcellenceDepartment of ChemistryUniversity of YorkYork YO105DDUK

Recalcitrance and the inherent heterogeneity of lignin structure are the major bottlenecks to impede the popularization of lignin-based chemicals production *** works suggested a promising pathway for lignin depolymerization and lignin-derived bio-oil upgrading via an electrochemical biorefinery(a process in which lignin valorization is performed via electrochemical oxidation or reduction).This review presents the progress on chemicals synthesis and bio-oil upgrading from lignin by an electrochemical biorefinery,relating to the lignin biosynthesis pathway,reaction pathway of lignin electrochemical conversion,inner-sphere and outer-sphere electron transfer mechanism,basic kinetics and thermodynamics in electrochemistry,and the recent embodiments analysis with the emphasis on the respective feature and limitation for lignin electrochemical oxidative and reductive ***,the challenge and perspective associated with lignin electrochemical biorefinery are ***-day results indicate that more work should be performed to promote efficiency,selectivity,and stability in pursuing a lignin electrochemical *** of the most promising developing directions appears to be integrating various types of lignin electrochemical conversion strategies and other existing or evolving lignin valorization *** review aims to provide more references and discussion on the development for lignin electrochemical biorefinery.

关键词： Lignin Electrochemical biorefinery Reaction pathway Electron transfer mechanism Kinetics Thermodynamics

贵州草海国家级自然保护区黑颈鹤、灰鹤种群迁徙动态初步研究

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贵州林业科技 2023年第4期51卷 22-25,34页

作者：晏玉莹刘延惠刘懿陈颜明马思怡张平王汝斌贵州省林业科学研究院贵州贵阳550005 贵州草海湿地生态系统国家定位观测研究站贵州威宁553100 草海国家级自然保护区管理委员会贵州威宁553100

贵州草海国家级自然保护区是黑颈鹤(Grus nigricollis)、灰鹤(Grus grus)重要的越冬地,为研究其黑颈鹤、灰鹤种群迁徙动态,于2019年10月至2020年3月,每日同时对7个固定点监测,调查黑颈鹤和灰鹤种群数量。结果表明:两种鹤类在草海保护区... 详细信息

贵州草海国家级自然保护区是黑颈鹤(Grus nigricollis)、灰鹤(Grus grus)重要的越冬地,为研究其黑颈鹤、灰鹤种群迁徙动态,于2019年10月至2020年3月,每日同时对7个固定点监测,调查黑颈鹤和灰鹤种群数量。结果表明:两种鹤类在草海保护区迁徙时期相近,整体分为迁入期、稳定期、迁出期,其中黑颈鹤种群数量迁徙规律保持较稳定的“增加—稳定—减少”模式,灰鹤为“增加—减少”模式。迁入期和迁出期黑颈鹤和灰鹤种群数量相关性显著,相关系数分别达0.975和0.907,稳定期两种鹤类呈现比较显著的负相关,相关系数为-0.693。两种鹤类表现出明显的共存和竞争现象,且通过迁徙时间的差异来减少种群间的竞争。

关键词：黑颈鹤灰鹤迁徙种群动态贵州草海

Halogen chlorine triggered oxygen vacancy-rich Ni(OH)_(2) with enhanced reaction kinetics for pseudocapacitive energy storage

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Journal of Energy Chemistry 2023年第7期82卷 296-306,I0007页

作者： Jiangyu Hao Lijin yan Liang Luo Qiaohui Liu Youcun Bai yuying Han yang Zhou Xuefeng Zou Bin Xiang School of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China Analytical and Testing Center Chongqing UniversityChongqing 400044China Guizhou Provincial Key Laboratory of Computational Nano-Material Science Guizhou Education UniversityGuiyang 550018GuizhouChina School of Materials Science and Engineering Institute of Materials Science and DeviceSuzhou University of Science and TechnologySuzhou 215009JiangsuChina

Two-dimensional (2D)Ni(OH)_(2) nanosheets can theoretically expose their active sites of 100%.Whereas,their intrinsic easy accumulation and low conductivity lead to weak and unsustainable reaction ***,we propose a novel halogen chlorine-triggered electrochemical etching strategy to controllably manage the reaction kinetics of 2D Ni(OH)_(2) nanosheets(EE/Cl-Ni(OH)_(2)).It is found that halogen chlorine doping can adjust the interlamellar spacing flexibly and promote the lattice oxygen activation to achieve controlled construction of superficial oxygen defects at the adjustable *** optimal EE/Cl-Ni(OH)_(2) electrode exhibits a high rate capability and excellent specific capacity of 206.9 mA h g^(-1) at 1 A g^(-1) in a three-electrode system,which is more than twice as high as the pristine Ni(OH)_(2).Furthermore,EE/Cl-Ni(OH)_(2) cathode and FeOOH@rGO anode are employed for developing an aqueous Ni-Fe battery with an excellent energy density of 83 W h kg^(-1),a high power density of 17051 W kg^(-1),and robust durability over 20,000 *** strategy exploits a fresh channel for the ingenious fabrication of highefficiency and stable nickel-based deficiency materials for energy storage.

关键词： Ni(OH)_(2) Electrochemical etching Lattice defects High energy density Ni-Fe battery

Intramolecular hydroamination of alkynes driven by isomeric Au_(36)(SR)_(24)nanocluster catalysts

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Nano Research 2023年第3期16卷 3641-3648页

作者： yuying Zhang Ancheng Tang Xiao Cai Jiayu Xu Guangjun Li Weigang Hu Xu Liu Mingyang Chen yan Zhu School of Chemistry and Chemical Engineering Nanjing UniversityNanjing 210093China Center for Green Innovation School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

It remains elusive to realize the distinct catalysis of isomeric catalysts because it becomes challenging to identify structural isomers in the polydisperse *** we investigate catalysis of two geometric isomers for 36-gold-atom nanoclusters with different Au cores arrangements but the same thiolate ligands,thereby providing access to isomer catalysts readily participate in a desired *** to the Au_(36)(SR)_(24)with a one-dimensional(1D)layout of Au4 tetrahedral units,the Au_(36)(SR)_(24)with a two-dimensional(2D)layout of Au4 tetrahedral units is more effective for the intramolecular hydroamination of *** study suggests that the exposed Au sties of the two Au_(36)(SR)_(24)catalysts favor different reaction intermediates and *** intramolecular H transfer leads to intermediates with the C-N and with C=N for the 1D and 2D Au_(36)(SR)_(24)respectively,and hence the different on-site and off-site pathways for the successive reaction steps account for the different performances of the two Au_(36)(SR)_(24)catalysts.

关键词： Au36 clusters isomeric structure catalytic activity catalysis

In-situ cation-inserted MnO_(2) with selective accelerated intercalation of individual H^(+) or Zn^(2+) ions in aqueous zinc ion batteries

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Journal of Energy Chemistry 2023年第7期82卷 88-102,I0003页

作者： Lijin yan Baibai Liu Jiangyu Hao yuying Han Chong Zhu Fuliang Liu Xuefeng Zou yang Zhou Bin Xiang College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 401331China College of Optoelectronic Engineering Chongqing UniversityChongqing 400044China Guizhou Meiling Power Co. Zunyi 563099GuizhouChina Nanjing University of Aeronautics and Astronautics Nanjing 210016JiangsuChina Guizhou Provincial Key Laboratory of Computational Nano-Material Science Guizhou Normal UniversityGuiyang 550018GuizhouChina Analytical and Testing Center of Chongqing University Chongqing UniversityChongqing 401331China

The recognized energy storage mechanism of neutral aqueous zinc-manganese batteries is the co-insertion/extrusion of H^(+) and Zn^(2+) ***,modulating the kinetics of a single H^(+) or Zn^(2+) ion is scarce,which can provide meaningful insights into the energy storage mechanism of Zn ion ***,a distinctive doubly electric field in-situ induced cationic anchoring of two-dimensional layered MnO_(2) is successfully constructed to modulate the insertion/extrusion of a single H^(+) or Zn^(2+) *** a result,regulating the intercalation of different metal ions can precisely achieve the accelerated induction for the individual H^(+) or Zn^(2+) ions intercalation/***,the introduction of metal ions stabilizes the lattice distortion and alleviates the irreparable structural collapse,leading to an increase in the H^(+)/Zn^(2+) storage sites,efficiently diminishing the stagnation of the ordered structure and creating the more open channels,which is conducive to facilitating the diffusion of *** work delivers some innovative insights into pre-embedding strategies,and also serves as a precious reference for the cathode development of advanced aqueous batteries.

关键词： In-situ inductions Manganese dioxide Insertion mechanisms Zinc-ion batteries

The toxic effects of three active pharmaceutical ingredients(APIs)with different efficacy to Vibrio fischeri

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Emerging Contaminants 2019年第1期5卷 297-302页

作者： yuying Dong Zheng Fang yan Xu Qiying Wang Xuejun Zou Department of Environmental Science and Engineering Dalian Minzu UniversityDalian116600China

The environmental residues of active pharmaceutical ingredients(APIs)are associated with environmental risks and health problems,the influence to environment have become a matter of public *** this paper,the individual and joint toxicities to vibrio fischeri of three APIs,including ibuprofen,azithromycin,and triclosan were *** EC50 endpoint values of the above tested APIs were 36.5×10^-5 mol L^-1,30.26×10^-5 mol L^-1,and 0.0155×10^-5 mol L^-1 *** was indicated that the endpoint toxicities to vibrio fischeri for different mixtures are higher than those of the individual *** joint toxicities of the multiple systems of three pharmaceuticals were evaluated by the additive index,toxicity unit,and mixed toxicity index *** consistent evaluation results were *** was observed that antagonistic effects in binary and ternary systems were appeared different antagonistic *** was deduced that different functional groups of the studied pharmaceuticals could affect the physiological and biochemical reaction processes of *** obtained data of the acute toxicities of pharmaceuticals to vibrio fischeri can facilitate the evaluation of the environmental risks associated with emerging pollutants.

关键词： Ibuprofen Azithromycin Triclosan Joint toxic effects