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An Integrated Carbon Dioxide Capture and Methanation Process

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CCS Chemistry 2024年第5期6卷 1174-1183页

作者： Xiaochen Zhang Mengzhu Li Xingwu Liu ang Li Yuchen Deng Mi Peng Yu Zhang Charlotte Vogt Matteo Monai Junxian Gao Xuetao Qin Yao Xu Qiaolin Yu Meng wang Guofu wang Zheng Jiang Xiaodong Han Casper Brady Wei-Xue Li Wu Zhou Jin-Xun Liu Bingjun Xu Bert M.Weckhuysen Ding Ma Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871 China Academy of Aerospace Science and Innovation Beijing 100088 National Energy Center for Coal to Liquids Synfuels China Co.Ltd.Beijing 101400 Beijing Key Laboratory of Microstructure and Property of Advanced Materials Beijing University of TechnologyBeijing Inorganic Chemistry and Catalysis group Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials ScienceFaculty of ScienceUtrecht University3584 CG Utrecht State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001 shanghai Synchrotron Radiation Facility Zhangjiang LadShanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210 Center for Catalytic Science and Technology University of DelawareNewarkDelaware 19716 Key Laboratory of Precision and Intelligent Chemistry School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui 230026 Hefei National Laboratory University of Science and Technology of ChinaHefei 230088 School of Physical Sciences CAS Key Laboratory of Vacuum PhysicsUniversity of Chinese Academy of SciencesBeijing 100049

Reducing the ever-growing level of CO_(2)in the atmosphere is critical for the sustainable development of human society in the context of global *** of the capture and upgrading of CO_(2)is,therefore,highly desirable since each process step is costly,both energetically and ***,we report a CO_(2)direct air capture(DAC)and fixation process that produces *** concentrations of CO_(2)(∼400 ppm)in the air are captured by an aqueous solution of sodium hydroxide to form *** carbonate is subsequently hydrogenated to methane,which is easily separated from the reaction system,catalyzed by TiO2-supported Ru in the aqueous phase with a selectivity of 99.9%among gas-phase *** concurrent regenerated hydroxide,in turn,increases the alkalinity of the aqueous solution for further CO_(2)capture,thereby enabling this one-ofits-kind continuous CO_(2)capture and methanation *** simulations demonstrate the energy feasibility of this CO_(2)DAC and methanation process,highlighting its promise for potential largescale applications.

关键词： CO_(2)capture and methanation process sodium hydroxide carbonate Ru/TiO_(2) catalytic mechanism CO_(2)activation and hydrogenation

In-Situ Atomic-Scale Observation of Brownmillerite to Ruddlesden-Popper Phase Transition Tuned by Epitaxial Strain in Cobaltites

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Chinese Physics Letters 2024年第4期41卷 152-158页

作者：林挺高昂汤哲歆林炜光孙慕华张庆华王雪锋郭尔佳谷林 Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of ScienceBeijing 100049China Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials Department of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Department of Physics&Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Phase transitions involving oxygen ion extraction within the framework of the crystallographic relevance have been widely exploited for sake of superconductivity,ferromagnetism,and ion conductivity in perovskiterelated ***,atomic-scale pathways of phase transitions and ion extraction threshold are inadequately *** we investigate the atomic structure evolution of LaCoO_(3) films upon oxygen extraction and subsequent Co migration,focusing on the key role of epitaxial *** brownmillerite to Ruddlesden-Popper phase transitions are discovered to stabilize at distinct crystal orientations in compressive-and tensile-strained cobaltites,which could be attributed to in-plane and out-of-plane Ruddlesden-Popper stacking faults,respectively.A two-stage process from exterior to interior phase transition is evidenced in compressive-strained LaCoO_(2.5),while a single-step nucleation process leaving bottom layer unchanged in tensile-strained *** analyses reveal that the former process is initiated by an expansion in Co layer at boundary,whereas the latter one is associated with an edge dislocation combined with antiphase *** findings provide a chemomechanical perspective on the structure regulation of perovskite oxides and enrich insights into strain-dependent phase diagram in epitaxial oxides films.

关键词： strained Phase oxides

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中子星状态方程的天文和实验室研究

原子核物理评论 2024年第1期41卷 308-317页

作者：李昂厦门大学天文学系福建厦门361005

中子星致密物质的状态方程具有核天体物理、天体物理、致密QCD相结构等多方面的重要研究意义,对星体的结构、形成和演化等起决定作用。LIGO实现引力波直接探测更是开启了中子星研究的黄金时代。本工作介绍结合核物理和天文对中子星奇异... 详细信息

中子星致密物质的状态方程具有核天体物理、天体物理、致密QCD相结构等多方面的重要研究意义,对星体的结构、形成和演化等起决定作用。LIGO实现引力波直接探测更是开启了中子星研究的黄金时代。本工作介绍结合核物理和天文对中子星奇异相变、超子疑难、温度和频率演化等方面的研究进展,也将基于目前的多信使观测和状态方程微观参数的模型计算简述区分不同类型中子星的可能方法。

关键词：中子星状态方程引力波奇异相变超子

生态环境法治视野下工业园区“环保管家”服务模式探析

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水利经济 2024年第4期42卷 59-65页

作者：李昂河海大学法学院江苏南京211100

在分析“环保管家”服务模式的特点、分类及现状的基础上,剖析了制约以工业园区为主的“环保管家”模式的推广和应用发展的法律障碍;建议进一步明确第三方环境保护服务企业的行政和民事责任,完善环境保护法律框架中的相关配套制度,建立... 详细信息

在分析“环保管家”服务模式的特点、分类及现状的基础上,剖析了制约以工业园区为主的“环保管家”模式的推广和应用发展的法律障碍;建议进一步明确第三方环境保护服务企业的行政和民事责任,完善环境保护法律框架中的相关配套制度,建立合理的准入和退出机制,创新监管方法和监督途径,并健全财税支持和金融融资机制,从而促进“环保管家”服务模式在我国得以全面实施和健康发展,充分发挥其污染治理的作用,为我国的生态文明建设提供制度保障。

关键词：环保管家第三方治理生态文明建设服务模式工业园区

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磁悬浮轨道梁均匀温度及温差分量极值研究

铁道科学与工程学报 2024年第6期21卷 2359-2370页

作者：戴公连罗泽江王芬何昌林张昂中南大学土木工程学院湖南长沙410075 高速铁路建造技术国家工程研究中心湖南长沙410075

与一般公铁桥梁不同,磁悬浮轨道梁的温度场会受到周围磁场与功能件升温的影响。由于我国规范暂未对磁浮轨道梁均匀温度和温差分量的极值作出明确规定,研究具有概率保证的温度分量代表值具有重要意义。根据长沙磁浮运营线某混凝土箱梁1... 详细信息

与一般公铁桥梁不同,磁悬浮轨道梁的温度场会受到周围磁场与功能件升温的影响。由于我国规范暂未对磁浮轨道梁均匀温度和温差分量的极值作出明确规定,研究具有概率保证的温度分量代表值具有重要意义。根据长沙磁浮运营线某混凝土箱梁1年多的现场温度监测数据,分析梁体均匀温度与竖向等效线性温差的时变特征。研究分别采用单变量线性回归法(ULR法)和梯度提升回归树法(GBRT法)建立基于气象因素的结构温度分量预测模型,对比发现GBRT法不仅能提高均匀温度的预测精度,还能克服ULR法无法预测竖向等效线性温差的局限性。而后将1960—2019年的长期气象数据输入到建立好的GBRT预测模型中,得到磁浮箱梁各温度分量60年的长期预测值,经整理后得到均匀温度和竖向等效线性温差的日极值、年极值样本。结合最大熵极值模型和Fourier函数得到各温度分量的日极值时变曲线,对年极值样本建立最大熵模型并确定百年重现期下的温度分量代表值。研究结果表明:磁浮箱梁均匀温度呈现以年为周期的季节性变化,竖向等效线性温差受太阳辐射影响,呈夏季高、冬季低的特点;百年重现期下磁浮箱梁均匀温度和竖向等效线性温差的代表值分别为44.4℃、8.6℃。该方法结合GBRT算法和最大熵极值模型,解决了极值分析中年极值样本不足的问题,结果可为磁浮轨道梁的温度变形设计提供参考。

关键词：磁悬浮轨道梁现场试验均匀温度等效线性温差 GBRT算法最大熵模型极值分析

中性粒细胞与淋巴细胞比值和血小板与淋巴细胞比值在急性脑梗死预后评估的价值分析

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罕少疾病杂志 2024年第7期31卷 15-17页

作者：王元安阳市第二人民医院检验科河南安阳455000

目的探究在对急性脑梗死患者进行评估时,采用中性粒细胞与淋巴细胞比值指标的临床价值。方法回顾性分析2021年5月-2023年1月期间安阳市第二人民医院收治的110例急性脑梗死患者的临床资料,按照改良Rankin量表(mRS)评分将所有患者分为两组... 详细信息

目的探究在对急性脑梗死患者进行评估时,采用中性粒细胞与淋巴细胞比值指标的临床价值。方法回顾性分析2021年5月-2023年1月期间安阳市第二人民医院收治的110例急性脑梗死患者的临床资料,按照改良Rankin量表(mRS)评分将所有患者分为两组(预后不良组、预后良好组),分别为18、92例。将两组患者各项基线资料进行对比,并纳入多因素分析,对急性脑梗死患者美国国立卫生研究院卒中量表(NIHSS)、mRS评分与中性粒细胞与淋巴细胞比值、血小板与淋巴细胞比值的关系进行分析。结果单因素结果显示,预后不良组脑梗死病史、大动脉粥样硬化型脑梗死、NIHSS评分≥5分患者占比与预后良好组比升高,发病至治疗时间长于预后良好组,淋巴细胞计数、中性粒细胞计数等指标均于预后良好组升高;多因素回顾分析结果得出,急性脑梗死预后不良的高危因素在于脑梗死病史、大动脉粥样硬化型、NIHSS评分≥5分、发病至治疗时间长、中性粒细胞与淋巴细胞比值、血小板与淋巴细胞比值(OR值=3.327、10.186、1.818、1.527、1.384、1.510)(P<0.05);急性脑梗死患者NIHSS评分与中性粒细胞与淋巴细胞比值、血小板与淋巴细胞比值呈正相关(r=0.598、0.712),mRS评分和中性粒细胞与淋巴细胞比值、血小板与淋巴细胞比值呈负相关关系(r=-0.502、-0.495)(P<0.05)。结论脑梗死病史、大动脉粥样硬化型、NIHSS评分≥5分、发病至治疗时间长、中性粒细胞与淋巴细胞比值、血小板与淋巴细胞比值均是急性脑梗死预后不良的危险因素,临床可对有以上临床特征的患者进行密切关注,临床可早期对患者进行NIHSS、mRS评分评估,以早期发现神经功能的情况,及时采取治疗,改善预后。

关键词：急性脑梗死中性粒细胞淋巴细胞血小板影响因素

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北京市医务人员付出回报失衡与工作压力的关系研究

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中国全科医学 2024年第7期27卷 843-848页

作者：李昂郭默宁谭鹏路凤王梅北京市卫生健康大数据与政策研究中心 100034

背景医务工作具有挑战性高、任务重和压力大的特点。付出-回报失衡(ERI)模型认为,如果组织环境造成了ERI,会对员工产生负面影响。医务人员调查是2018年全国第六次卫生服务调查的重要组成部分,医务人员的良好工作感受和工作状态是居民服... 详细信息

背景医务工作具有挑战性高、任务重和压力大的特点。付出-回报失衡(ERI)模型认为,如果组织环境造成了ERI,会对员工产生负面影响。医务人员调查是2018年全国第六次卫生服务调查的重要组成部分,医务人员的良好工作感受和工作状态是居民服务利用和健康改善的重要决定因素,提高医务人员的获得感和满意度也是新医改的重要目标。目的探讨北京市医务人员ERI与工作压力的关系,为降低医务人员的工作压力提供参考。方法本研究数据来源于2018年全国第六次卫生服务调查中对北京市4156名医务人员的抽样调查结果。根据医务人员的ERI量表和工作压力量表得分,构建工作压力结构方程预测模型,使用偏最小平方法估计相关参数,分析ERI与工作压力之间的关系。结果参与付出回报比(ERI指数)计算的有效记录为4098条,根据ERI指数计算结果,1333名(32.53%)医务人员处于付出与回报平衡状态,2765名(67.47%)医务人员处于付出与回报失衡状态。北京市医务人员46.00%的工作压力可通过ERI模型进行解释。内在付出、外在付出、工作回报对工作压力均具有直接影响(P<0.001),其中内在付出的总效应为0.409(95%CI=0.373~0.443),外在付出的总效应为0.583(95%CI为0.559~0.606),工作回报的总效应为-0.199(95%CI=-0.227~-0.171)。另外,内在付出是外在付出和工作回报对工作压力影响的中介因子(P<0.001)。结论研究结果支持ERI是北京市医务人员工作压力重要来源的研究假设。鉴于内在付出对工作压力影响最大,卫生管理部门和医疗机构应针对性地改善相关管理制度,解决ERI问题,降低医务人员的工作压力。

关键词：医务人员工作压力付出-回报失衡结构方程模型偏最小平方法北京市

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Cardiovascular health awareness,risk perception,behavioural intention and INTERHEART risk stratification among middle-aged adults in Malaysia

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Asian Pacific Journal of Tropical Medicine 2024年第2期17卷 61-70页

作者： Siew-Keah Lee ang-Lim Chua Clement Heng Yew Fong Ban Hao Brian Cong Wen Ling Ng Jing Feng Kong Yik-Ling Chew Kai Bin Liew Yang shao M.Kandiah Faculty of Medicine and Health Sciences Universiti Tunku Abdul RahmanMalaysia Faculty of Medicine Universiti Teknologi MARAMalaysia Faculty of Pharmaceutical Sciences UCSI UniversityMalaysia Faculty of Pharmacy University of CyberjayaMalaysia The First Affiliated Hospital of Hainan Medical University China

Objective:To investigate the interrelationship between cardiovascular health awareness,risk perception,behavioural intention,and INTERHEART risk stratification in a middle-aged adult population in ***:A cross-sectional survey with convenience sampling was conducted during November 2022 and January *** completed validated questionnaires assessing cardiovascular health awareness,risk perception of cardiovascular diseases,behavioural intention towards adopting healthy habits,and INTERHEART risk stratification score(IHRS)based on established risk factors.A total of 602 respondents were included in the final *** were analysed with independent t-test/one-way ANOVA or Mann-Whitney/Kruskal-Wallis to test the differences,Pearson correlation or linear regression test to analyze the association of independent and dependent ***:There was a significant positive correlation between medical knowledge related to cardiovascular disease(CVD)and knowledge related to CVD risk prevention,risk perception,behavioural intention and IHRS(P<0.05,Pearson correlation).Notably,individuals with higher IHRS tended to have lower knowledge related to CVD and CVD risk prevention,risk perception,and behavioural ***,laborers,active/former smokers,individuals with lower household income and educational levels,those involved in occupations not related to the healthcare sector,and those who did not receive the CVD health brochure or are unaware of health self-assessment tools are likely to have lower levels of knowledge,risk perception,and poorer behavioural intention regarding cardiovascular health(P<0.05,one-way ANOVA).While educational level,smoking status,awareness about CVD poster,self-assessment tools were repeatedly significantly associated with knowledge related to CVD and CVD risk prevention,risk perception,behavioral intention and/or IHRS(P<0.05,linear regression).Conclusions:These findings underscore the importance of promoting car

关键词： Cardiovascular risk Knowledge Risk perception Behavioural intention INTERHEART Middle-aged Lifestyle Physical activity Psychosocial stress

Fast-Response Fiber-Optic FPI Temperature Sensing System Based on Modulated Grating Y-Branch Tunable Laser

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Photonic Sensors 2024年第1期14卷 59-72页

作者： Yang CHEUNG Zhenguo JING Qiang LIU ang LI Yueying LIU Yihang GUO Sen ZHang Dapeng ZHOU Wei PENG School of Physics Dalian University of TechnologyDalian 116024China School of Optoelectronic Engineering and Instrumentation Science Dalian University of TechnologyDalian 116024China School of Computer and Electronic Information/School of Artificial Intelligence Nanjing Normal UniversityNanjing 210023China

In this paper,a cost-effective and miniaturized instrument is proposed,which is based on a tunable modulated grating Y-branch(MG-Y)laser for rapid temperature measurement using a Fabry-Perot interferometer(FPI)*** FPI sensor with a 1463-μm cavity length is a short segment of a capillary tube sandwiched by two sections of single-mode fibers(SMFs).This system has a broad tunable range(1527 nm-1567 nm)with a wavelength interval of 8 pm and a tuning rate of 100 *** sensing experiments are carried out to investigate the performance of the system by demodulating the absolute cavity length of the FPI sensor using a cross-correlation *** results show that the sensor can reach the response time as short as 94 ms with the sensitivity of 802 pm/*** from the homemade and integrated essential electrical circuits,the entire system has the small size,low cost,and practical application potential to be used in the harsh environment for rapid temperature measurement.

关键词： MG-Y laser interrogator rapid temperature measurement cross-correlation algorithm