检索结果-南通市图书馆

Combined synthesis of interconvertible Au11Cd and Au26Cd5 for photocatalytic oxidations involving singlet oxygen

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2023年第4期34卷 359-362页

作者： Jiafeng Zou wenwen fei Yao Qiao Ying Yang Zongbing He Lei Feng Man-Bo Li Zhikun Wu Institute of Physical Science and Information Technology Anhui UniversityHefei 230601China Key Laboratory of Materials Physics Anhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Excellence in NanoscienceInstitute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China

A novel Au11Cd nanocluster was synthesized by developing a combined method and controlling the kinetics, and another Au26Cd5nanocluster was also obtained after the conditions were changed in the same reaction, which could transfer to Au11Cd in a two-way style. Both alloy nanoclusters can photocatalyze the production of singlet oxygen(1O_(2)) and exhibit enhanced efficiencies in photocatalyzing two kinds of organic oxidations involving singlet oxygen compared with their non-alloyed mother nanoclusters, indicating that the Cd-doping might be an efficient way to enhance the photocatalysis performance of gold nanoclusters and metal nanoclusters are promising photocatalysts for organic oxidation involving singlet oxygen.

关键词： Gold nanoclusters Cadmium-doping Singlet oxygen Photocatalysis RLE-AGR

Atomically Precise Metal Nanoclusters as Single Electron Transferers for Hydroborylation

在线全文

学校读者我要写书评

暂无评论

Precision Chemistry 2023年第3期1卷 175-182页

作者： Wanli Zhu Sheng Zhang Weigang Fan Ying Yang Hongliang Zhao wenwen fei Hong Bi Jian He Man-Bo Li Zhikun Wu Institute of Physical Science and Information Technology Anhui UniversityHefeiAnhui 230601P.R.China Key Laboratory of Materials Physics Anhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Excellence in NanoscienceInstitute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031P.R.China College of Materials and Chemical Engineering West Anhui UniversityLu’anAnhui 237015P.R.China School of Material Science and Engineering Anhui UniversityHefeiAnhui 230601P.R.China Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong KongHong KongP.R.China

The emergence of metal nanoclusters with atomically precise compositions and structures provides an opportunity for in-depth investigation of catalysis mechanisms and structure−property correlations at the ***,a serious problem for metal nanocluster catalysts is that the ligands inhibit the catalytic activity through deactivating the surface of the ***,we introduce a novel catalytic mode for metal nanoclusters,in which the nanoclusters initiate the catalysis via single electron transfer(SET)without destroying the integrity of nanoclusters,providing a solution for the contradiction between activity and stability of metal *** illustrated that the novel activation mode featured low catalyst loading(0.01 mol%),high TOF,mild reaction conditions,and easy recycling of catalyst in alkyne hydroborylation,which often suffered from poor selectivity,low functional group tolerance,***,the catalyst[Au_(1)Cu_(14)(TBBT)_(12)(PPh_(3))_(6)]^(+)(TBBTH:p-tert-butylthiophenol)can be applied in highly efficient tandem processes such as hydroborylation−deuteration and hydroborylation−isomerization,demonstrating the utility of the introduced activation mode for metal nanoclusters.

关键词： atomically precise metal nanocluster single electron transfer hydroborylation boryl radical tandem catalysis

不同学历护生护理伦理决策能力现状及其影响因素分析

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

护理研究 2015年第26期 3317-3319页

作者：费雯雯江苏省昆山市中医医院

[目的]了解不同学历护生护理伦理决策能力现状及其影响因素,为加强临床带教、提高护生护理伦理决策能力提供依据。[方法]采用由Ketefian研制、朱磊翻译的2007版护理伦理决策问卷对2013年1月—2014年1月在某三级乙等医院实习的159名不同... 详细信息

[目的]了解不同学历护生护理伦理决策能力现状及其影响因素,为加强临床带教、提高护生护理伦理决策能力提供依据。[方法]采用由Ketefian研制、朱磊翻译的2007版护理伦理决策问卷对2013年1月—2014年1月在某三级乙等医院实习的159名不同学历护生进行调查。[结果]不同学历护生的护理伦理决策能力比较差异有统计学意义(P<0.01),学历越高,护生的护理伦理决策能力越强。护理伦理知识获取途径是影响护理伦理决策能力的主要因素,其次是学历以及护理伦理决策经验。[结论]临床带教老师应通过多种途径对护生灌输护理伦理知识,提高护生的护理伦理决策能力。

关键词：护生护理伦理决策能力护理伦理影响因素

参松养心胶囊联合茶碱缓释片治疗心律失常临床观察

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

新中医 2018年第12期50卷 53-56页

作者：费文文吴费凯湖州市第一人民医院浙江湖州313000

目的:观察参松养心胶囊联合茶碱缓释片治疗心律失常的临床疗效及安全性。方法:将60例心律失常患者随机分为2组各30例,对照组在西医常规治疗的基础上加用茶碱缓释片口服,观察组在对照组治疗的基础上联合参松养心胶囊治疗;疗程均为4周,观... 详细信息

目的:观察参松养心胶囊联合茶碱缓释片治疗心律失常的临床疗效及安全性。方法:将60例心律失常患者随机分为2组各30例,对照组在西医常规治疗的基础上加用茶碱缓释片口服,观察组在对照组治疗的基础上联合参松养心胶囊治疗;疗程均为4周,观察2组临床疗效、心胸比、血压、心率、心律失常情况、心率变异性[全程每5 min NN节段的窦性RR间期标准差(SDANN)、全程连续窦性RR间期标准差(SDNN)、全程相邻RR之差的均方根(RMSSD)]等的变化情况。结果:总有效率观察组为93.33%,对照组为60.00%,2组比较,差异有统计学意义(P 0.05)。结论:参松养心胶囊联合茶碱缓释片治疗心律失常临床疗效显著,疗效优于单纯西药治疗,值得临床推广应用。

关键词：心律失常中西医结合疗法茶碱缓释片参松养心胶囊

Optimizing the key parameter to accelerate the recovery of AMOC under a rapid increase of greenhouse gas forcing

在线全文

学校读者我要写书评

暂无评论

Atmospheric and Oceanic Science Letters 2025年第1期18卷 39-45页

作者： Haolan Ren fei Zheng Tingwei Cao Qiang Wang International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina College of Oceanography Hohai UniversityNanjingChina CAS Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of Sciences and Pilot National Laboratory for Marine Science and Technology(Qingdao)QingdaoChina

Atlantic Meridional Overturning Circulation(AMOC)plays a central role in long-term climate variations through its heat and freshwater transports,which can collapse under a rapid increase of greenhouse gas forcing in climate *** studies have suggested that the deviation of model parameters is one of the major factors in inducing inaccurate AMOC *** this work,with a low-resolution earth system model,the authors try to explore whether a reasonable adjustment of the key model parameter can help to re-establish the AMOC after its *** a new optimization strategy,the extra freshwater flux(FWF)parameter is determined to be the dominant one affecting the AMOC’s *** traditional ensemble optimal interpolation(EnOI)data assimilation and new machine learning methods are adopted to optimize the FWF parameter in an abrupt 4×CO_(2) forcing experiment to improve the adaptability of model parameters and accelerate the recovery of *** results show that,under an abrupt 4×CO_(2) forcing in millennial simulations,the AMOC will first collapse and then re-establish by the default FWF parameter ***,during the parameter adjustment process,the saltier and colder sea water over the North Atlantic region are the dominant factors in usefully improving the adaptability of the FWF parameter and accelerating the recovery of AMOC,according to their physical relationship with FWF on the interdecadal timescale.

关键词： Recovery of AMOC 4×CO_(2)forcing Key parameter Parameter estimation Data assimilation Machine learning

老年胃肠道肿瘤病人出院后跌倒效能及影响因素分析

在线全文

学校读者我要写书评

暂无评论

循证护理 2018年第2期4卷 162-164页

作者：姜玲费雯雯沈微烨昆山市中医医院

[目的]探讨老年胃肠道肿瘤病人出院后跌倒效能及其影响因素。[方法]应用自制调查表、跌倒效能量表(MFES)以及Kessler 10量表对87例老年胃肠道肿瘤病人进行调查,对该类病人出院后跌倒效能的多个可能影响因素进行Logistic多元回归分析。[... 详细信息

[目的]探讨老年胃肠道肿瘤病人出院后跌倒效能及其影响因素。[方法]应用自制调查表、跌倒效能量表(MFES)以及Kessler 10量表对87例老年胃肠道肿瘤病人进行调查,对该类病人出院后跌倒效能的多个可能影响因素进行Logistic多元回归分析。[结果]老年胃肠道肿瘤病人出院后跌倒效能总得分为(7.82±1.14)分;不同年龄、心理健康状态以及自理程度的胃肠道肿瘤病人出院后跌倒效能水平差异有统计学意义。[结论]老年胃肠道肿瘤病人出院后跌倒效能处于中等水平,年龄、心理健康状态、自理程度是老年胃肠道肿瘤病人出院后跌倒效能的影响因素。

关键词：老年病人胃肠道肿瘤跌倒效能影响因素年龄心理健康自理程度

Epigenetic regulation of the inflammatory response in stroke

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第11期20卷 3045-3062页

作者： Jingyi Liang fei Yang Zixiao Li Qian Li School of Basic Medical Sciences Capital Medical UniversityBeijingChina Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina Laboratory for Clinical Medicine Beijing Key Laboratory of Neural Regeneration and RepairCapital Medical UniversityBeijingChina Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina National Center for Healthcare Quality Management in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina Department of Biochemistry and Molecular Biology School of Basic Medical SciencesCapital Medical UniversityBeijingChina Beijing Key Laboratory of Cancer Invasion and Metastasis Research Capital Medical UniversityBeijingChina

Stroke is classified as ischemic or hemorrhagic,and there are few effective treatments for either *** mechanisms play a critical role in secondary brain injury following a stroke,which manifests as cytokine release,blood–brain barrier disruption,neuronal cell death,and ultimately behavioral *** the inflammatory response has been shown to mitigate this cascade of events in experimental stroke ***,in clinical trials of anti-inflammatory agents,longterm immunosuppression has not demonstrated significant clinical benefits for *** may be attributable to the dichotomous roles of inflammation in both tissue injury and repair,as well as the complex pathophysiologic inflammatory processes in *** acute harmful inflammatory responses or inducing a phenotypic shift from a pro-inflammatory to an anti-inflammatory state at specific time points after a stroke are alternative and promising therapeutic *** agents that can modulate inflammation requires a detailed understanding of the inflammatory processes of ***,epigenetic reprogramming plays a crucial role in modulating post-stroke inflammation and can potentially be exploited for stroke *** this review,we summarize current findings on the epigenetic regulation of the inflammatory response in stroke,focusing on key signaling pathways including nuclear factor-kappa B,Janus kinase/signal transducer and activator of transcription,and mitogen-activated protein kinase as well as inflammasome *** also discuss promising molecular targets for stroke *** evidence to date indicates that therapeutic targeting of the epigenetic regulation of inflammation can shift the balance from inflammation-induced tissue injury to repair following stroke,leading to improved post-stroke outcomes.

关键词： DNA methylation histone modification intracerebral hemorrhage ischemic stroke neuroinflammation neuroprotection non-coding RNA RNA methylation subarachnoid hemorrhage treatment

Co-production of hydrogen, oxygen, and electricity via an integrated solar-driven system with decoupled water electrolyzer and Na-Zn ion battery

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 621-627页

作者： fei Lv Longjie Liu Jiazhe Wu Pengfei Wang Lixia Pan Dengwei Jing Yubin Chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Combining water electrolysis and rechargeable battery technologies into a single system holds great promise for the co-production of hydrogen （H2） and ***,the design and development of such systems is still in its ***,an integrated hydrogen-oxygen （O2）-electricity co-production system featuring a bipolar membrane-assisted decoupled electrolyzer and a Na-Zn ion battery was established with sodium nickelhexacyanoferrate （NaNiHCF） and Zn2+/Zn as dual redox *** decoupled electrolyzer enables to produce H2and O2in different time and space with almost 100%Faradaic efficiency at 100 mA ***,the charged NaNiHCF and Zn electrodes after the electrolysis processes formed a Na-Zn ion battery,which can generate electricity with an average cell voltage of 1.75 V at 10 m A *** connecting Si photovoltaics with the modular electrochemical device,a well-matched solar driven system was built to convert the intermittent solar energy into hydrogen and electric energy with a solar to hydrogen-electricity efficiency of 16.7%,demonstrating the flexible storage and conversion of renewables.

关键词： Hydrogen Electricity Decoupled water electrolyzer Na-Zn ion battery Solar energy

南水北调输水期间怀柔水库及京密引水渠水质分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

北京水务 2018年第B9期 20-22页

作者：王鹏程文裴文文王建武北京市京密引水管理处 101400

为了掌握怀柔水库及京密引水渠在输水期间的水质变化规律．对监测区域水质变化进行分析及评价，结果表明：2016—2017年不同监测点位以及整个监测区域不同季度水质均满足地表水Ⅱ类水质标准。本研究为怀柔水库及京密引水渠后续水质安全... 详细信息

为了掌握怀柔水库及京密引水渠在输水期间的水质变化规律．对监测区域水质变化进行分析及评价，结果表明：2016—2017年不同监测点位以及整个监测区域不同季度水质均满足地表水Ⅱ类水质标准。本研究为怀柔水库及京密引水渠后续水质安全保障工作提供了基础。

关键词：怀柔水库京密引水渠水质分析