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VSe_(2)/V_(2)C heterocatalyst with built-in electric field for efficient lithium-sulfur batteries:Remedies polysulfide shuttle and conversion kinetics

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Journal of Energy Chemistry 2024年第2期89卷 397-409,I0010页

作者： Yanwei Lv lina bai Qi Jin Siyu Deng Xinzhi Ma Fengfeng Han Juan Wang Lirong Zhang Lili Wu Xitian Zhang Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025HeilongjiangChina

Lithium sulfur(Li-S)battery is a kind of burgeoning energy storage system with high energy ***,the electrolyte-soluble intermediate lithium polysulfides(Li PSs)undergo notorious shuttle effect,which seriously hinders the commercialization of Li-S ***,a unique VSe_(2)/V_(2)C heterostructure with local built-in electric field was rationally engineered from V_(2)C parent via a facile thermal selenization *** exquisitely synergizes the strong affinity of V_(2)C with the effective electrocatalytic activity of VSe_(2).More importantly,the local built-in electric field at the heterointerface can sufficiently promote the electron/ion transport ability and eventually boost the conversion kinetics of sulfur *** Li-S battery equipped with VSe_(2)/V_(2)C-CNTs-PP separator achieved an outstanding initial specific capacity of 1439.1 m A h g^(-1)with a high capacity retention of 73%after 100 cycles at0.1 *** impressively,a wonderful capacity of 571.6 mA h g^(-1)was effectively maintained after 600cycles at 2 C with a capacity decay rate of 0.07%.Even under a sulfur loading of 4.8 mg cm^(-2),areal capacity still can be up to 5.6 m A h cm^(-2).In-situ Raman tests explicitly illustrate the effectiveness of VSe_(2)/V_(2)C-CNTs modifier in restricting Li PSs *** with density functional theory calculations,the underlying mechanism of VSe_(2)/V_(2)C heterostructure for remedying Li PSs shuttling and conversion kinetics was *** strategy of constructing VSe_(2)/V_(2)C heterocatalyst in this work proposes a universal protocol to design metal selenide-based separator modifier for Li-S ***,it opens an efficient avenue for the separator engineering of Li-S batteries.

关键词： Li-S battery Shuttle effect Separator modifier VSe_(2)/V_(2)C heterostructure Built-in electric field

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Tropical cyclone activities in the Western North Paci fi c in 2022

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TROPICAL CYCLONE RESEARCH AND REVIEW 2024年第2期13卷 125-135页

作者： Huang, Xin bai, lina Yu, Zifeng Chan, Johnny C. L. Yu, Hui Tang, Jie Guo, Rong Wan, Rijin China Meteorol Adm Shanghai Typhoon Inst Shanghai 200030 Peoples R China Asia Pacific Typhoon Collaborat Res Ctr Shanghai Peoples R China City Univ Hong Kong Sch Energy & Environm Hong Kong Peoples R China

Based on the best-track dataset from the Shanghai Typhoon Institute/China Meteorological Administration, the paper provides a comprehensive summary and analysis of tropical cyclone (TC) activities in the Western North Pacific (WNP) and the South China Sea (SCS) for 2022. Using the historical climatology from 1951 to 2020, the anomalous conditions during 2022 in TC frequency, origin locations, tracks, intensity, and duration for the entire ocean basin as well as landfall events in China are examined. Results show that the overall TC frequency is slightly lower than normal, but the multiple TC events have a very high frequency of occurrence. Origin locations of TCs, which mark the starting points of their paths, show a large westward and northward deviation from climatology. Around 40% of the named TCs exhibit a shift in their direction of movement from westerly to easterly. Additionally, comparisons of the means, medians, upper and lower quartiles all indicate that the intensity of TCs in 2022 is generally lower than the climatology, with the duration of TCs at tropical storm intensity or above being shorter than usual. A notable observation is the fewer incidence of TC landfalls in China, but with a geographical concentration in Guangdong Province. These anomalous annual TC activities are influenced by related atmospheric and oceanic environmental conditions modulated by multi-scale climate variability. The findings provide useful information for enhancing disaster mitigation strategies in the Asia-Pacific region. (c) 2024 The Shanghai Typhoon Institute of China Meteorological Administration. Publishing services by Elsevier B.V. on behalf of KeAi Communication Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://***/licenses/by-nc-nd/4.0/).

关键词： Tropical cyclone Western North Paci fi c Anomalous characteristics Annual report TYPHOON COMMITTEE REGION EL-NINO INTERANNUAL VARIABILITY INTERDECADAL VARIATIONS GENESIS FREQUENCY 3RD ASSESSMENT CLIMATE-CHANGE ENSO OSCILLATION INTENSITY

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外电场调控V_(2)NO_(2)/MoGe_(2)N_(4)异质结界面性质的第一性原理

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高师理科学刊 2024年第2期44卷 48-52页

作者：王泽白丽娜牛丽哈尔滨师范大学物理与电子工程学院黑龙江哈尔滨150025

采用第一性原理计算系统地研究V_(2)NO_(2)和MoGe_(2)N_(4)的基础性质,及其异质结界面的电场响应特性.V_(2)NO_(2)具有类金属特性,MoGe_(2)N_(4)为间接带隙半导体特性.两种结构搭建的异质结具有六种不同堆叠方式,全部构型进行优化并选... 详细信息

采用第一性原理计算系统地研究V_(2)NO_(2)和MoGe_(2)N_(4)的基础性质,及其异质结界面的电场响应特性.V_(2)NO_(2)具有类金属特性,MoGe_(2)N_(4)为间接带隙半导体特性.两种结构搭建的异质结具有六种不同堆叠方式,全部构型进行优化并选用了最低能量构型进行电场响应特性分析.V_(2)NO_(2)/MoGe_(2)N_(4)异质结构的界面相互作用为范德瓦尔斯相互作用,两种结构在异质结中良好地保持了自己的本征性质.在外电场的调控下,V_(2)NO_(2)/MoGe_(2)N_(4)异质结可以在p型肖特基接触和欧姆接触之间转换.结果表明,V_(2)NO_(2)/MoGe_(2)N_(4)是可调的金属/半导体接触.

关键词： MA_(2)Z_(4) 异质结肖特基势垒第一性原理

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2022年西北太平洋和南海台风预报精度评定

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气象 2024年第5期50卷 630-641页

作者：杨梦琪陈国民张喜平汤立春白莉娜郭蓉中国气象局上海台风研究所上海200030 亚太台风研究中心上海201306 中国气象局台风数值预报重点实验室上海200030

评定2022年西北太平洋和南海台风业务定位定强、路径和强度预报精度,结果表明:2022年,官方台风预报机构的定位误差与台风强度等级呈负相关;中国气象局中央气象台在各强度等级的定位平均误差最小,全年定位平均误差(15.4 km)较2021年(19.7... 详细信息

评定2022年西北太平洋和南海台风业务定位定强、路径和强度预报精度,结果表明:2022年,官方台风预报机构的定位误差与台风强度等级呈负相关;中国气象局中央气象台在各强度等级的定位平均误差最小,全年定位平均误差(15.4 km)较2021年(19.7 km)减小21.8%,定强平均绝对误差(1.3 m·s^(-1))较2021年(1.4 m·s^(-1))略减小。主观预报和客观预报方法的路径预报平均误差较2021年普遍有所减小,而强度预报平均绝对误差较2021年普遍有所增大。SSTC、CMA-TRAMS和ECMWF-IFS路径预报技巧评分相对较高。NCEP-GFS、JMA-GSM、CMA-TRAMS和CMA-TYM强度预报系统性偏差不明显,NCEP-GFS、HWRF和CMA-TRAMS强度预报技巧评分相对较高。

关键词：台风定位定强误差路径预报误差强度预报误差

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Quantifying interagency differences in intensity estimations of Super Typhoon Lekima (2019)

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Frontiers of Earth Science 2022年第1期16卷 5-16页

作者： lina bai Jie TANG Rong GUO Shuai ZHANG Kaiye LIU Shanghai Typhoon Institute of China Meteorological Administration Shanghai 200030China Shanwei Meteorological Observatory Shanwei 516600China

There were significant discrepancies in the intensity estimations of Super Typhoon Lekima(2019)among the China Meteorological Administration(CMA),the United States Joint Typhoon Warning Center(JTWC),and the Japan Meteorological Agency(JMA)data sets,with a maximum difference of over 12 m/s and 16 m/s between the JTWC data set and the CMA and JMA data sets,*** the intensification phase,disagreement on the maximum sustained wind(MSW)between these agencies was due to the use of different conversion tables for the current intensity number(CI)estimated by Dvorak *** addition,CI discrepancies and different available observational data were also important contributors to the different intensities estimated during the Lekima’s decay phase before *** ability of various methods to minimize these discrepancies was evaluated in this *** the linear factor multiplication method and the remapping method using the same CI-MSW conversion table have substantially abilities to reduce intensity discrepancies,with the latter method being more ***,these improvements only hold for the intensification phase in the *** CMA data set had more complete and accurate intensity estimations when Lekima made landfall in *** its landfall,the intensity estimate of the CMA was comparable to that of the JMA,which differed greatly from that of the JTWC.

关键词： China. Typhoon tables

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Application of the frequency-matching method in the probability forecast of landfalling typhoon rainfall

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Frontiers of Earth Science 2022年第1期16卷 52-63页

作者： Rong GUO Hui YU Zifeng YU Jie TANG lina bai Shanghai Typhoon Institute and Key Laboratory of Numerical Modeling for Tropical Cyclone of China Meteorological AdministrationShanghai 200030China

In this paper,a revised method for typhoon precipitation probability forecast,based on the frequencymatching method,is developed by combining the screening and the neighborhood *** frequency of the high-resolution precipitation forecasts is used as the reference frequency,and the frequency of the lowresolution ensemble forecasts is used as the forecast *** on frequency–matching method,the frequency of rainfall above the rainstorm magnitude *** forecast members are then selected by using the typhoon tracks of the short-term predictions,and the precipitation probability is calculated for each member using a combination of the neighbor and the traditional probability statistical ***,four landfalling typhoons(i.e.,STY Lekima and STS bailu in 2019,and TY Hagupit and Higos in 2020)were chose to test the rainfall probability *** results show that the method performs well with respect to the forecast rainfall area and magnitude for the four *** Brier and Brier skill scores are almost entirely positive for the probability forecast of 0.1–250 mm rainfall during bailu,Hagupit and Higos(except for 0.1mm of Hagupit),and for<100 mm rainfall(except for 25 mm)during Lekima.

关键词： frequency-matching method landfalling typhoon rainfall probability Brier score

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系统性红斑狼疮患者的症状群及其网络分析

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护理学杂志 2024年第5期39卷 22-27页

作者：白丽娜杨旭颖张丹丹李雨蔚王飒苗华丽山西医科大学护理学院山西太原030001 浙江中医药大学护理学院山西中医药大学护理学院山西医科大学第三医院/山西白求恩医院护理部

目的描述系统性红斑狼疮患者症状群的构成,并运用网络分析探索群内症状之间的关系,为症状管理提供依据。方法采取便利抽样原则选取201例系统性红斑狼疮患者为研究对象。采用一般资料调查表、系统性红斑狼疮症状清单对患者进行调查。... 详细信息

目的描述系统性红斑狼疮患者症状群的构成,并运用网络分析探索群内症状之间的关系,为症状管理提供依据。方法采取便利抽样原则选取201例系统性红斑狼疮患者为研究对象。采用一般资料调查表、系统性红斑狼疮症状清单对患者进行调查。症状群的提取采用探索性因子分析,以JASP软件绘制网络分析图及各症状中心指标图,分析群内症状之间的关系。结果系统性红斑狼疮患者疲劳的发生率最高(64.7%),共提取5个症状群:疲劳相关症状群、体质量增加相关症状群、瘙痒-疼痛相关症状群、皮肤改变症状群、身体形象症状群。经过网络分析,对太阳光过敏在所有集群中的强度和紧密度最高,情绪改变的中介度最高。结论系统性红斑狼疮患者存在症状群,各症状的影响强度不同。临床医护人员需密切关注患者症状,通过改善核心症状来改变群内与之相关的其他症状,进一步提高患者的生活质量。

关键词：系统性红斑狼疮症状群症状管理光过敏情绪改变疲乏体质量网络分析

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压贴三棱镜联合手术矫正共同性内斜视疗效观察

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中国美容医学 2024年第1期33卷 40-44页

作者：李艳王晓莉蔡方荣柏丽娜简阳市人民医院眼科四川简阳641400

目的:探讨压贴三棱镜联合手术治疗共同性内斜视矫正的效果。方法:回顾性分析笔者医院2018年5月-2020年6月60例共同性内斜视患儿临床资料,将给予压贴三棱镜并接受斜视矫正手术治疗的患儿纳入A组,将采用单纯手术治疗的患儿29例纳入B组,比... 详细信息

目的:探讨压贴三棱镜联合手术治疗共同性内斜视矫正的效果。方法:回顾性分析笔者医院2018年5月-2020年6月60例共同性内斜视患儿临床资料,将给予压贴三棱镜并接受斜视矫正手术治疗的患儿纳入A组,将采用单纯手术治疗的患儿29例纳入B组,比较两组矫正效果、双眼视功能以及眼球屈光度。结果:A组术后3个月正位率93.55%高于B组68.97%(P0.05);A组术后1个月、术后3个月有融合功能比例分别为64.52%、74.19%高于B组37.93%、48.28%(P0.05)。结论:共同性内斜视矫正术前联合使用压贴三棱镜提高了术后正位率,增强了术后融合功能和立体视功能恢复效果,不影响眼球屈光度。

关键词：共同性内斜视矫正压贴三棱镜视功能融合功能临床疗效

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骨髓源性生长因子缺失导致小鼠心肌梗死后纤维化加剧

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四川大学学报（医学版） 2024年第4期55卷 886-892页

作者：韩国玲郝琰琰李若朴刘维静刘俊聂宇白丽娜王玉瑶山西医科大学基础医学院生物化学与分子生物学教研室太原030001 北京协和医学院中国医学科学院阜外医院国家心血管病中心心血管疾病国家重点实验室北京100037

目的研究心梗后骨髓源性生长因子(myeloid-derived growth factor, Mydgf)的缺失对心肌成纤维细胞活化的作用。方法取成年野生型(wild type, WT)小鼠与Mydgf敲除(myeloid-derived growth factor knockout, Mydgf-KO)小鼠,检验这两组小鼠的心功能指标左室射血分数(left ventricular ejection fraction, LVEF)和左室短轴缩短率(left ventricular fractional shortening, LVFS)(n=10),实时定量PCR(quantitative real-time PCR, qRT-PCR)(n=3)检测肌成纤维细胞标志物α-平滑肌肌动蛋白(α-SMA)、骨膜蛋白(postn)、Ⅷ型胶原(typeⅧcollagen, col8al)、结缔组织生长因子(connective tissue growth factor, ctgf)的mRNA表达水平,Western blot(n=3)检测肌α-SMA的蛋白表达水平;对WT与Mydgf-KO小鼠造心肌梗死(myocardial infarction, MI)模型,检测小鼠术后LVEF和LVFS(n=10),取出心脏后进行Masson染色测定梗死面积(n=10)。分别在MI后第7天、第14天收集Mydgf-KO及WT小鼠的心脏,验证肌成纤维细胞标志物(n=3)的表达情况。结果相较于WT小鼠,Mydgf-KO成年小鼠LVEF、LVFS无明显变化(P均>0.05),但α-SMA和postn的mRNA水平上调,α-SMA蛋白表达水平增加(P均<0.05);MI后,与WT小鼠相比,Mydgf-KO小鼠LVEF、LVFS下降,且梗死面积增大(P均<0.05);进一步发现,Mydgf-KO小鼠α-SMA、col8al、postn和ctgf的mRNA水平升高,同时α-SMA蛋白表达水平上调且α-SMA阳性的成纤维细胞增加(P均<0.05)。结论 Mydgf缺失促使心脏成纤维细胞转变为肌成纤维细胞,同时也加剧心梗后的纤维化。

关键词：骨髓源性生长因子心肌纤维化心肌梗死肌成纤维细胞

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Nb_(2)CT_(x) MXene: High capacity and ultra-long cycle capability for lithium-ion battery by regulation of functional groups

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Journal of Energy Chemistry 2021年第2期30卷 387-395,I0013页

作者： Jiabao Zhao Jing Wen Junpeng Xiao Xinzhi Ma Jiahui Gao lina bai Hong Gao Xitian Zhang Zhiguo Zhang Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025HeilongjiangChina School of Instrumentation Science and Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina

MXenes are well known for their potential application in supercapacitors due to their high-rate intercalation pseudocapacitance and long ***,the reported low capacity of pristine MXenes hinders their practical application in lithium-ion *** this work,a robust strategy is developed to control the functional groups of Nb_2 CT_x *** capacity of pristine Nb_2 CT_x MXene can be significantly increased by Li~+ intercalation and surface *** specific capacity of the treated Nb_2 CT_x is up to 448 mAh g^(-1) at 0.05 A g^(-1),and at a large current density of 2 A g^(-1) remains a high reversible capacity retention rate of 75% after an ultra-long cycle of 2000 *** values exceed most of the reported pristine MXenes(including the most studied Ti_3 C_2 T_x) and carbon-based *** demonstrates that this strategy has great help to improve the electrochemical performance of pristine MXene,and the results enhance the promise of MXenes in the application of lithium-ion batteries.

关键词： MXene Nb_(2)CT_(x) Functional groups Lithium-ion batteries

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