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Computational Screening of Pt1@Ti_(3)C_(2)T_(2)(T=O,S)MXene Catalysts for Water-Gas Shift Reaction

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Precision Chemistry 2024年第2期2卷 70-80页

作者： Yang Meng haiyan wang Jin-Xia Liang Chun Zhu Jun Li School of Chemistry and Chemical Engineering Guizhou UniversityGuiyang 550025China Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry Southern University of Science and TechnologyShenzhen 518055China Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education Tsinghua UniversityBeijing 100084China

Single-atom catalysts(SACs)provide an oppor-tunity to elucidate the catalytic mechanism of complex reactions in heterogeneous *** low-temperature water-gas shift(WGS)reaction is an important industrial technology to obtain high purity ***,we study the catalytic activity of Pt1@Ti_(3)C_(2)T_(2)(T=O,S)SACs,where one subsurface Ti atom with three T vacancies in the functionalized Ti_(3)C_(2)T_(2)(T=O,S)MXene is substituted by one Pt atom,for the low-temperature show that Pt1@Ti_(3)C_(2)T_(2)provides an excellent platform for the WGS reaction by its bowl-shaped vacancy derived from the Pt1 single atom and three T defects surrounding ***,Pt1@Ti_(3)C_(2)S_(2)SAC has higher catalytic performance for the WGS reaction,due to the weaker electronegativity of the S atom than the O atom,which significantly reduces the energy barrier of H*migration in the WGS reaction,which is often the rate-determining *** the most favorable redox mechanism of the WGS reaction on Pt1@Ti_(3)C_(2)S_(2),the rate-determining step is the dissociation of OH*into O*and H*with the energy barrier as low as 1.12 *** results demonstrate that Pt1@Ti_(3)C_(2)S_(2)is promising in the application of MXenes for low-temperature WGS reactions.

关键词： single-atom catalyst(SAC) density functional theory(DFT) water gas shift(WGS)reaction defective MXene thermocatalysis

Proof of Aerobically Autoxidized Self-Charge Concept Based on Single Catechol-Enriched Carbon Cathode Material

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Nano-Micro Letters 2024年第4期16卷 1-13页

作者： Junyan wang Wanchun Guo Kesong Tian Xinta Li Xinyu wang Panhua Li Yu Zhang Bosen Zhang Biao Zhang Shuhu Liu Xueai Li Zhaopeng Xu Junjie Xu haiyan wang Yanglong Hou State Key Laboratory of Metastable Materials Science and Technology Hebei Key Laboratory of Heavy Metal Deep‑Remediation in Water and Resource ReuseSchool of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004People’s Republic of China Beijing Key Laboratory for Magnetoelectric Materials and Devices Beijing Innovation Centre for Engineering Science and Advanced TechnologySchool of Materials Science and EngineeringPeking UniversityBeijing 100871People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China Xi’an Rare Metal Materials Institute Co.Ltd Xi’an 710016People’s Republic of China

The self-charging concept has drawn considerable attention due to its excellent ability to achieve environmental energy harvesting,conversion and storage without an external power ***,most self-charging designs assembled by multiple energy harvesting,conversion and storage materials increase the energy transfer loss;the environmental energy supply is generally limited by climate and meteorological conditions,hindering the potential application of these selfpowered devices to be available at all *** on aerobic autoxidation of catechol,which is similar to the electrochemical oxidation of the catechol groups on the carbon materials under an electrical charge,we proposed an air-breathing chemical self-charge concept based on the aerobic autoxidation of catechol groups on oxygen-enriched carbon materials to ortho-quinone *** harvesting,conversion and storage functions could be integrated on a single carbon material to avoid the energy transfer loss among the different ***,the assembled Cu/oxygen-enriched carbon battery confirmed the feasibility of the air-oxidation self-charging/electrical discharging mechanism for potential *** air-breathing chemical self-charge concept could facilitate the exploration of high-efficiency sustainable air self-charging devices.

关键词： Carbon material Oxygen functionality Air oxidation self-charge

Rock joint detection from borehole imaging logs using a convolutional neural networks model

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Journal of Earth Science 2024年

作者： Yunfeng Ge Geng Liu haiyan wang Huiming Tang Binbin Zhao Faculty of Engineering， China University of Geosciences Hunan Earthquake Agency Badong National Observation and Research Station of Geohazards， China University of Geosciences Research Institute of Transmission and Transformation Projects， China Electric Power Research Institute Co.， Ltd， State Grid Corporation of China

To map the rock joints in the underground rock mass， a method was proposed to semi-automatically detect the rock joints from borehole imaging logs using a deep learning algorithm. First， 450 images containing rock joints were selected from borehole ZKZ01 in the Rumei hydropower station. These images were labeled to establish ground truth which was subdivided into training， validation， and testing data. Second， the YOLO v2 model with optimal parameter settings was constructed. Third， the training and validation data were used for model training， while the test data was used to generate the Precision-Recall curve for prediction evaluation. Fourth， the trained model was applied to a new borehole ZKZ02 to verify the feasibility of the model. There were 12 rock joints detected from the selected images in borehole ZKZ02 and four geometric parameters for each rock joint were determined by sinusoidal curve fitting. The average precision of the trained model reached 0.87.

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Astrocytic pyruvate dehydrogenase kinase-lactic acid axis involvement in glia-neuron crosstalk contributes to morphine-induced hyperalgesia in mice

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Fundamental Research 2024年第4期4卷 820-828页

作者： Xiaqing Ma Qi Qi Wenying wang Min Huang haiyan wang Limin Luo Xiaotao Xu Tifei Yuan Haibo Shi Wei Jiang Tao Xu Department of Anesthesiology Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200233China Department of Anesthesiology Suzhou Hospital of Anhui Medical UniversitySuzhou 234000China Department of Anesthesiology Affliated Hospital of Nantong UniversityMedical School of Nantong UniversityNantong 226001China Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghai 200030China Shanghai Key Laboratory of Sleep Disordered Breathing Shanghai 200233China

The activation of spinal astrocytes accounts for opioid-induced hyperalgesia(OIH),but the underlying mechanisms remain *** presence of astrocyte-neuron lactate shuttle(ANLS)makes astrocytes necessary for some neural function and *** aim of this study was to explore the role of ANLS in the occurrence and maintenance of *** 7 days consecutive morphine injection,a mice OIH model was established and astrocytic pyruvate dehydrogenase kinase 4(PDK4),phosphorylated pyruvate dehydrogenase(p-PDH)and accumulation of L-lactate was elevated in the spinal dorsal *** administration of inhibitors of PDK,lactate dehydrogenase 5 and monocarboxylate transporters to decrease the supply of L-lactate on neurons was observed to attenuate hypersensitivity behaviors induced by repeated morphine administration and downregulate the expression of markers of central sensitization in the spinal dorsal *** astrocyte line and the neuronal line were co-cultured to investigate the mechanisms in *** this study,we demonstrated that morphine-induced hyperalgesia was sustained by lactate overload consequent upon aberrant function of spinal *** this process,PDK-p-PDH-lactate axis serves a pivotal role,which might therefore be a new target to improve long-term opioid treatment strategy in clinical practice.

关键词： Pyruvate dehydrogenase kinase 4 Phosphorylated pyruvate dehydrogenase Astrocyte-neuron lactate shuttle Opioid-induced hyperalgesia Lactate

太极思维对中医学整体观思维模式与形神生命观的影响

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中华中医药杂志 2024年第3期39卷 1131-1134页

作者：王海焱北京中医药大学中医学院北京100029

文章探讨了太极的来源与含义以及太极道论的基本理论,并分析了太极象思维对中医学的影响。太极在中华文化中被视为万物的原始,代表着大、无限大的含义。《周易》对太极的阐释成为了后世哲学家与学者的探索对象,从而形成了多重哲学涵义... 详细信息

文章探讨了太极的来源与含义以及太极道论的基本理论,并分析了太极象思维对中医学的影响。太极在中华文化中被视为万物的原始,代表着大、无限大的含义。《周易》对太极的阐释成为了后世哲学家与学者的探索对象,从而形成了多重哲学涵义。太极道论强调了太虚混沌的状态,以及左旋右转、三五相包的变化规律。在太极象思维的影响下,中医学借鉴天象观察方法,形成了以季节变化与日月更替为基础的整体观和取象比类的思维方式。太极象思维也深刻影响了中医的形神生命观,强调形与神的统一,以及人与自然的和谐统一。整体而言,太极道论为中医学的发展提供了重要的理论基础与思维范式,对于中医理论体系的形成与发展具有重要影响。

关键词：太极太极道论中医学整体观形神生命观

深埋老黄土隧道支护限阻器力学特性及其应用研究

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铁道学报 2024年第4期46卷 194-204页

作者：申志军王刚仇文革王海彦西南交通大学交通隧道工程教育部重点实验室四川成都610031 南京工业大学交通运输工程学院江苏南京211816 中铁四局集团有限公司安徽合肥230022 成都天佑智隧科技有限公司四川成都610031

为深入探究基于限阻器的隧道让压支护,即限阻支护的受力特征,基于室内试验结果,采用数值计算和数据拟合的方法,系统阐明了限阻器的力学性能和本构关系,提出限阻支护的数值模拟方法;并结合工程应用,分析不同参数下限阻支护的变形和受力... 详细信息

为深入探究基于限阻器的隧道让压支护,即限阻支护的受力特征,基于室内试验结果,采用数值计算和数据拟合的方法,系统阐明了限阻器的力学性能和本构关系,提出限阻支护的数值模拟方法;并结合工程应用,分析不同参数下限阻支护的变形和受力特征。结果表明:限阻器的力学性能与竖板的高度和厚度相关,引入预制弯弧可使限阻器性能可控;限阻器采用应变软化/硬化实体单元和弹性正交异性膜单元模拟;限阻器较小的恒阻值降低了限阻支护的轴力但同时也增大了弯矩,有利于小偏心受压破坏防治但增加了大偏心受压破坏风险;限阻器的合理压缩量为7~12 cm,建议在工程应用中对限阻器做降高、增厚和弯弧优化,可进一步增效降本。

关键词：黄土隧道大变形限阻器让压支护受力特征

在逆行中寻找多种可能性——论孙频的小说集《以鸟兽之名》

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扬子江文学评论 2024年第1期 108-112页

作者：王海燕湖北文理学院文学与传媒学院

2021年4月,孙频的小说集《以鸟兽之名》(1)结集在人民文学出版社出版,收录了她2020-2021年间创作的三部中篇(《骑白马者》《以鸟兽之名》《天物墟》)。在新书发布会上,孙频谈到她的创作缘起,是因为这个时代变得越来越物质化、越来越快速... 详细信息

2021年4月,孙频的小说集《以鸟兽之名》(1)结集在人民文学出版社出版,收录了她2020-2021年间创作的三部中篇(《骑白马者》《以鸟兽之名》《天物墟》)。在新书发布会上,孙频谈到她的创作缘起,是因为这个时代变得越来越物质化、越来越快速,人们也都在追求时代风潮之下的东西。

关键词：创作缘起孙频新书发布会物质化多种可能性时代风潮小说集人民文学出版社

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A common polar dye additive as corrosion inhibitor and leveling agent for stable aqueous zinc-ion batteries

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Electron 2024年第1期2卷 39-47页

作者： Hao wang Chao Hu Zefang Yang Tingqing Wu Yihu Li Qi Zhang Yougen Tang haiyan wang Hunan Provincial Key Laboratory of Chemical Power Sources College of Chemistry and Chemical EngineeringCentral South UniversityChangshaChina Department of Physics Chalmers University of TechnologyGothenburgSweden

The industrial application of zinc-ion batteries is restricted by irrepressible dendrite growth and side reactions that resulted from the surface heterogeneity of the commercial zinc electrode and the thermodynamic spontaneous corrosion in a weakly acidic aqueous ***,a common polar dye,Procion Red MX-5b,with high polarity and asymmetric charge distribution is introduced into the zinc sulfate electrolyte,which can not only reconstruct the solvation configuration of Zn2þand strengthen hydrogen bonding to reduce the reactivity of free H_(2)O but also homogenize interfacial electric field by its preferentially absorption on the zinc *** symmetric cell can cycle with a lower voltage hysteresis(78.4 mV)for 1120 times at 5 mA cm^(−2)and Zn//NaV_(3)O_(8)·1.5H_(2)O full cell can be cycled over 1000 times with high capacity(average 170 mAh g^(−1))at 4 A g^(−1)in the compound *** study provides a new perspective for additive engineering strategies of aqueous zinc-ion batteries.

关键词： corrosion inhibitor leveling agent multifunctional additive solvation structure zinc-ion batteries

我国共同富裕水平测度、动态演变与收敛性研究

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中共福建省委党校（福建行政学院）学报 2024年第3期 123-134页

作者：王海燕中共河南省委党校

基于熵值法综合评价模型测算2011-2020年我国30个省份共同富裕水平,运用统计分析、核密度估计、σ收敛和β收敛模型,探究我国各省共同富裕水平动态演变规律和收敛性特征:发现我国各省份共同富裕水平总体呈稳步提升态势,东部地区共同富... 详细信息

基于熵值法综合评价模型测算2011-2020年我国30个省份共同富裕水平,运用统计分析、核密度估计、σ收敛和β收敛模型,探究我国各省共同富裕水平动态演变规律和收敛性特征:发现我国各省份共同富裕水平总体呈稳步提升态势,东部地区共同富裕水平高于全国平均水平,中西部及东北部地区低于全国平均水平;全国及四大区域共同富裕水平核密度曲线右移明显,但存在绝对差异扩大趋势;除东北部地区外,全国及东中西部地区共同富裕水平均存在σ收敛和β收敛,其中西部地区收敛最快,中部地区最慢。如果考虑宏观控制变量,所有区域共同富裕水平收敛速度均有所加快,其中东部地区收敛速度最快,中部地区最慢。

关键词：共同富裕动态演变核密度估计 σ收敛 β收敛

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