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Unraveling adaptive changes in electric vehicle charging behavior toward the postpandemic era by federated meta-learning

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The Innovation 2024年第2期5卷 21-23页

作者： Linlin You Rui Zhu Mei-po Kwan min Chen Fan Zhang Bisheng Yang Man Sing Wong Zheng Qin School of Intelligent Systems Engineering Sun Yat-Sen UniversityShenzhen 518107China Institute of High Performance Computing(IHPC) Agency for ScienceTechnology and Research(A*STAR)1 Fusionopolis WaySingapore 138632Republic of Singapore Institute of Space and Earth Information Science Chinese University of Hong KongHong KongChina Key Laboratory of Virtual Geographic Environment(ministry of Education) Nanjing Normal UniversityNanjing 210023China Institute of Remote Sensing and Geographical Information System School of Earth and Space SciencesPeking UniversityBeijing 100871China State Key Laboratory of Information Engineering in Surveying Mappingand Remote SensingWuhan UniversityWuhan 430079China Department of Land Surveying and Geo-Informatics The Hong Kong Polytechnic UniversityHong KongChina

Dear Editor,Electric vehicle(EV)sales have significantly grown over the years to fulfill growing demands for economic travel and greenhouse gas mitigation.1 However,the surge in the number of EVs has led to charging anxiety as users struggle to find an available charging station before running out of electricity,resulting in longer reserve and waiting times.2 Moreover,severe mobility restrictions caused by infectious diseases,such as coronavirus disease 2019(COVID-19),have greatly affected people’s travel behavior3,4 and hindered their willingness to use EVs,given that charging in public spaces consumes time and increases the risk of contracting the virus.5 This implies that in the postpandemic era,in which individuals coexist with the virus,the interplay between the two important trends,namely vehicle electrification and mobility restrictions,can extensively affect people’s daily commuting by using EVs.

关键词： travel behavior charging

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Progesterone receptor membrane component 1 as a potential prognostic biomarker for hepatocellular carcinoma

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World Journal of Gastroenterology 2018年第10期24卷 1152-1166页

作者： Hung-Wen Tsai Chung-Liang Ho Shu-Wen Cheng Yih-Jyh Lin Chou-Cheng Chen Pin-Nan Cheng Chia-Jui Yen Ting-Tsung Chang po-min chiang Shih-Huang Chan Cheng-Hsun Ho Shu-Hui Chen Yi-Wen Wang Nan-Haw Chow Jou-Chun Lin Institute of Clinical Medicine National Cheng Kung University Hospital College of Medicine National Cheng Kung University Department of Pathology National Cheng Kung University Hospital College of Medicine National Cheng Kung University Institute of Basic Medical Sciences College of Medicine National Cheng Kung University Center of Infectious Disease and Signaling Research College of Medicine National Cheng Kung University Department of Surgery National Cheng Kung University Hospital College of Medicine National Cheng Kung University Department of Internal Medicine National Cheng Kung University Hospital College of Medicine National Cheng Kung University Department of Statistics College of Management National Cheng Kung University Research Center of Clinical Medicine National Cheng Kung University Hospital College of Medicine National Cheng Kung University Department of Chemistry College of Sciences National Cheng Kung University

AIM To investigate the clinicopathological significance of progesterone receptor membrane component 1(PGRMC1) and PGRMC2 in hepatocellular carcinoma(HCC). METHODS We performed immunohistochemical staining to evaluate the estrogen receptor(ER), progesterone receptor(PR), PGRMC1, and PGRMC2 in a clinical cohort consisting of 89 paired HCC and non-tumor liver samples. We also analyzed HCC data(n = 373) from The Cancer Genome Atlas(TCGA). We correlated the expression status of PGRMC1 and PGRMC2 with clinicopathological indicators and the clinical outcomes of the HCC patients. We knocked down or overexpressed PGRMC1 in HCC cell lines to evaluate its biological significance in HCC cell proliferation, differentiation, migration, and invasion. RESULTS We found that few HCC cases expressed ER(5.6%) and PR(4.5%). In contrast, most HCC cases expressed PGRMC1(89.9%) and PGRMC2(100%). PGRMC1 and PGRMC2 exhibited significantly lower expression in tumor tissue than in non-tumor tissue(P poorer tumor differentiation(P = 0.045) and liver capsule penetration(P = 0.038). Low PGRMC1 expression was an independent predictor for worse disease-free survival(P = 0.002, HR = 2.384,CI: 1.377-4.128) in our cases, as well as in the TCGA cohort(P poorly differentiated phenotype and proliferation of HCC cells in vitro, while PGRMC1 overexpression caused the opposite *** PGRMC1 is a non-classical hormonal receptor that negatively regulates hepatocarcinogenesis. PGRMC1 down-regulation is associated with progression of HCC and is a poor prognostic indicator.

关键词： progesterone receptor membrane component 1 hormonal receptor proliferation hepatocellular carcinoma prognosis

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Establishment of a prognosis predictive model for liver cancer based on expression of genes involved in the ubiquitin-proteasome pathway

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World Journal of Clinical Oncology 2024年第3期15卷 434-446页

作者： Hua Li Yi-po Ma Hai-Long Wang Cai-Juan Tian Yi-Xian Guo Hong-Bo Zhang Xiao-min Liu Peng-Fei Liu Department of Endoscopy Tianjin Medical University Cancer Institute and HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and Therapy of TianjinTianjin’s Clinical Research Center for CancerTianjin 300060China Department of Critical Care Medicine Dingzhou City People’s HospitalDingzhou 073000Hebei ProvinceChina Department of Oncology Tianjin Academy of Traditional Chinese Medicine Affiliated HospitalTianjin 300120China Tianjin Marvel Medical Laboratory Tianjin Marvelbio Technology Co.LtdTianjin 300180China Department of Intelligent Technology Tianjin Yunquan Intelligent Technology Co.LtdTianjin 300381China Department of Oncology Tianjin Huanhu HospitalTianjin 300350China

BACKGROUND The ubiquitin-proteasome pathway(UPP)has been proven to play important roles in *** To investigate the prognostic significance of genes involved in the UPP and develop a predictive model for liver cancer based on the expression of these *** In this study,UPP-related E1,E2,E3,deubiquitylating enzyme,and proteasome gene sets were obtained from the Kyoto Encyclopedia of Genes and Genomes(KEGG)database,aiming to screen the prognostic genes using univariate and multivariate regression analysis and develop a prognosis predictive model based RESULTS Five genes(including autophagy related 10,proteasome 20S subunit alpha 8,proteasome 20S subunit beta 2,ubiquitin specific peptidase 17 like family member 2,and ubiquitin specific peptidase 8)were proven significantly correlated with prognosis and used to develop a prognosis predictive model for liver *** training,validation,and Gene Expression Omnibus sets,the overall survival differed significantly between the high-risk and low-risk *** expression of the five genes was significantly associated with immunocyte infiltration,tumor stage,and postoperative recurrence.A total of 111 differentially expressed genes(DEGs)were identified between the high-risk and low-risk groups and they were enriched in 20 and 5 gene ontology and KEGG *** division cycle 20,Kelch repeat and BTB domain containing 11,and DDB1 and CUL4 associated factor 4 like 2 were the DEGs in the E3 gene set that correlated with *** We have constructed a prognosis predictive model in patients with liver cancer,which contains five genes that associate with immunocyte infiltration,tumor stage,and postoperative recurrence.

关键词： Liver cancer Ubiquitin-proteasome pathway Prognosis prediction Gene expression Immune infiltration

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SiC基底覆多层石墨烯力学强化性能分子动力学模拟

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物理学报 2024年第10期73卷 372-382页

作者：陈晶晶赵洪坡王葵占慧敏罗泽宇南昌理工学院机电工程学院南昌330044 南昌理工学院计算机信息工程学院南昌330044

微机电系统半导体SiC器件覆多层石墨烯的力学强化性能与塑性变形微观研究,将对提升该器件耐久性服役寿命期和强韧化机制理解起到显著作用.因此,本文基于分子动力学法探讨了石墨烯堆垛类型(AA和AB堆垛)和极端使役温度对其接触力学性能(... 详细信息

微机电系统半导体SiC器件覆多层石墨烯的力学强化性能与塑性变形微观研究,将对提升该器件耐久性服役寿命期和强韧化机制理解起到显著作用.因此,本文基于分子动力学法探讨了石墨烯堆垛类型(AA和AB堆垛)和极端使役温度对其接触力学性能(最大承载荷、硬度、杨氏模量、接触刚度)、微结构演化、接触质量、褶皱形貌、位错总长的影响,解释了SiC基底覆多层石墨烯力学强化的原子尺度机制.研究发现:相同使役温度下,随覆石墨烯层数增加,SiC基底微结构的棱柱形位错环演化中越早发生脆断;石墨烯AB堆垛在最大压深时的C-C键断裂会导致石墨烯优异面内弹性变形丧失,以致其最大承载性呈现断崖式下降.研究表明:SiC基底覆三层石墨烯的力学强化性能是纯SiC的2倍,该强化效应不受石墨烯堆垛类型影响,其力学强化机制主要源于多层石墨烯受载加大会引起石墨烯面内褶皱增大,从而增大界面接触刚度,触发界面接触质量减小所致.使役温度升高,会激发原子振动频率增大,诱导界面接触原子数增多,以致界面接触质量增大,而界面接触刚度随之减弱,最终引起SiC基底覆多层石墨烯力学性能随温度升高呈近似直线下降.此外,SiC基底的亚表层应力集中会诱导基底内的微结构产生滑移与演变;基底覆石墨烯层数增加可有效减小基底亚表层的应力集中分布程度,从而对基底起抗载保护作用.

关键词： SiC 多层石墨烯力学强化分子动力学接触刚度

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前沿交叉学科平台能否促进博士生学术发展?——基于某研究型大学博士生调查数据的实证分析

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学位与研究生教育 2024年第4期 74-83页

作者：杨钋金红昊蔡旻恩北京大学教育学院教育经济研究所北京100871 华中科技大学教育科学研究院武汉430074 北京大学前沿交叉学科研究院北京100871

构建了涵盖“入口–环境–投入–发展”的综合性分析框架,实证考察前沿交叉学科平台的博士生培养成效。结果显示,相较于传统学科,交叉学科平台培养的博士生在读博动机、组织支持、学业投入与学术职业社会化等领域均具有优势,但在学术成... 详细信息

构建了涵盖“入口–环境–投入–发展”的综合性分析框架,实证考察前沿交叉学科平台的博士生培养成效。结果显示,相较于传统学科,交叉学科平台培养的博士生在读博动机、组织支持、学业投入与学术职业社会化等领域均具有优势,但在学术成果产出方面略有不足。延伸分析发现,导师支持的缺位是学术成果产出不足这一现象背后的症结所在。故此,前沿交叉学科平台亟待构建高质量的全职导师团队,为博士生培养提供充足师资支持。

关键词：前沿交叉学科平台博士生学术发展跨学科研究生教育

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聚醚酰亚胺纳米复合电介质中指数分布陷阱电荷跳跃输运对储能性能的影响

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物理学报 2024年第2期73卷 14-25页

作者：宋小凡闵道敏高梓巍王泊心郝予涛高景晖钟力生西安交通大学电力设备电气绝缘国家重点实验室西安710049

目前常见聚合物电介质电容器的储能性能在高温下会急剧劣化,难以满足航空航天和能源等领域的需求.为提高介质高温储能性能,常掺杂纳米填料对电介质改性,通过改变电介质内部陷阱参数来调控电荷输运过程,但其内部陷阱的能级和密度与储能... 详细信息

目前常见聚合物电介质电容器的储能性能在高温下会急剧劣化,难以满足航空航天和能源等领域的需求.为提高介质高温储能性能,常掺杂纳米填料对电介质改性,通过改变电介质内部陷阱参数来调控电荷输运过程,但其内部陷阱的能级和密度与储能性能间的定量关系仍需进一步研究.本文构建线性聚合物纳米复合电介质中指数分布陷阱电荷跳跃输运的储能与释能模型并进行了仿真.纯聚醚酰亚胺在150℃的体积电阻率和电位移矢量-电场强度回线的仿真结果与实验符合,证明了模型的有效性.不同陷阱参数纳米复合电介质的仿真结果表明,增大总陷阱密度和最深陷阱能级,会降低载流子迁移率、电流密度和电导损耗,提升放电能量密度和充放电效率.在150℃和550 kV/mm外施场强下,1.0 eV最深陷阱能级和1×10^(27) m^(-3)总陷阱密度的纳米复合电介质放电能量密度和充放电效率分别为4.26 J/cm^(3)和98.93%,相比纯聚醚酰亚胺提升率分别为91.09%和227.58%,显著提升了高温储能性能.本研究为耐高温高储能性能电容器的研发提供了理论和模型支撑.

关键词：陷阱能级和密度储能密度充放电效率纳米复合电介质

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Adsorption behavior of CO2/H2S mixtures in calcite slit nanopores for CO2 storage:An insight from molecular perspective

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Petroleum Science 2024年第4期21卷 2444-2456页

作者： Cheng Qian Zhen-Hua Rui Yue-Liang Liu Kai Du Chen Liu Yang Zhao Xiao-min Ma State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum College of Petroleum Engineering China University of Petroleum College of Carbon Neutrality Future Technology China University of Petroleum College of Petroleum China University of Petroleum-Beijing at Karamay College of mining Engineering Taiyuan University of Technology

It is acknowledged that injecting CO2into oil reservoirs and saline aquifers for storage is a practical and affordable method for *** CO2produced from industrial exhaust contains impurity gases such as H2S that might impact CO2sequestration due to competitive *** study makes a commendable effort to explore the adsorption behavior of CO2/H2S mixtures in calcite slit *** Canonical Monte Carlo（GCMC） simulation is employed to reveal the adsorption of CO2,H2S as well as their binary mixtures in calcite *** show that the increase in pressure and temperature can promote and inhibit the adsorption capacity of CO2and H2S in calcite nanopores,***2exhibits stronger adsorption on calcite surface than *** energy plays the dominating role in the adsorption *** energy accounts for 97.11% of the CO2-calcite interaction energy and 56.33% of the H2S-calcite interaction energy at 10 MPa and 323.15 *** presence of H2S inhibits the CO2adsorption in calcite nanopores due to competitive adsorption,and a higher mole fraction of H2S leads to less *** quantity of CO2adsorbed is lessened by approximately 33% when the mole fraction of H2S reaches ***2molecules preferentially occupy the regions near the po re wall and H2S molecules tend to reside at the center of nanopore even when the molar ratio of CO2is low,indicating that CO2has an adsorption priority on the calcite surface over *** addition,moisture can weaken the adsorption of both CO2and H2S,while CO2is more *** interestingly,we find that pure CO2is more suitable to be sequestrated in the shallower formations,i.e.,500-1500 m,whereas CO2with H2S impurity should be settled in the deeper reservoirs.

关键词： Adsorption behavior CO 2 /H 2 S binary mixtures Molecular perspective Calcite slit nanopores CO 2 sequestration

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两种从场地调查数据中分离土壤环境背景数据方法的比较

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生态与农村环境学报 2024年第5期40卷 718-728页

作者：吴运金夏菲洋杨敏胡洁潘成杰邓绍坡王荐生态环境部南京环境科学研究所江苏南京210042 江苏滨海经济开发区沿海工业园管委会江苏盐城224555

地块土壤环境背景值在我国土壤环境管理中具有重要作用,土壤环境背景含量数据可采用间接方法从土壤污染状况调查数据中分离获得。采用稳健正态概率Q-Q图法和标准阈值法两种间接方法,从研究案例数据和模拟数据中分离土壤环境背景数据,并... 详细信息

地块土壤环境背景值在我国土壤环境管理中具有重要作用,土壤环境背景含量数据可采用间接方法从土壤污染状况调查数据中分离获得。采用稳健正态概率Q-Q图法和标准阈值法两种间接方法,从研究案例数据和模拟数据中分离土壤环境背景数据,并对两种方法的有效性和适用性进行比较分析。案例地块土壤钴(Co)含量数据呈现双峰分布,来源于两个不同总体。模拟数据M_(1)和M_(2)来源于背景数据(B)和非背景数据(N_(1)或N_(2)),M_(1)由B和N_(1)组成,两者之间重叠较多,M_(2)由B和N_(2)组成,两者之间重叠较少。研究结果显示,对于案例地块数据,利用稳健正态Q-Q图法和标准阈值法分离出的土壤环境背景数据之间差异较小,且与采用背景参考区法获得的土壤环境背景数据具有相似的统计特征。对于模拟数据,采用标准阈值法和稳健Q-Q图法都可以有效地从模拟数据M_(1)和M_(2)中分离出背景数据,两种方法分离出的背景数据之间及其与B之间均没有显著差异,且模拟数据的不同重叠程度对分离背景数据的影响较小。但是由于采用标准阈值法分离出的背景数据与B更相近,且方法简单易操作,更适用于土壤环境背景数据的分离。该研究可为地块土壤环境背景数据的获取提供方法上的借鉴。

关键词：土壤环境背景稳健正态概率Q-Q图法标准阈值法分离

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One-step calcination synthesis of interface-coherent crystallized and surface-passivated LiNi_(0.5)Mn_(1.5)O_(4) for high-voltage lithium-ion battery

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Nano Research 2024年第5期17卷 4192-4202页

作者： min Xu Bifu Sheng Yong Cheng Junjie Lu minfeng Chen Peng Wang Bo Liu Jizhang Chen Xiang Han ming-Sheng Wang Siqi Shi College of Materials Science and Engineering Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing Forestry UniversityNanjing 210037China State Key Laboratory of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China College of Mathematics and Physics Jinggangshan UniversityJi’an 343009China School of Materials Science and Engineering Shanghai UniversityShanghai 200444China Western Digital Corporation 951 Sandisk DrMilpitasCA 95035USA

LiNi_(0.5)Mn_(1.5)O_(4)(LNMO)with a spinel crystal structure presents a compelling avenue towards the development of economic cobalt-free and high voltage(~5 V)lithium-ion ***,the elevated operational voltage of LNMO gives rise to pronounced interfacial interactions between the distorted surface lattices characterized by Jahn-Teller(J-T)distortions and the electrolyte ***,a localized crystallized coherent LaNiO_(3) and surface passivated Li_(3)po_(4) layer is deposited on LNMO via a one-step calcination *** evidenced by transmission electron microscopy(TEM),time-of-flight secondary ion mass spectrometry(ToF-SIMS)and density functional theory(DFT)calculation,the epitaxial growth of LaNiO_(3) along the LNMO lattice can effectively stabilize the structure and inhibit irreversible phase transitions,and the Li_(3)po_(4) surface coating can prevent the chemical reaction between HF and transition metals without sacrificing the electrochemical *** addition,the ionic conductive Li_(3)po_(4) and atomic wetting inter-layer enables fast charge transfer transport ***,the LNMO material enabled by the lattice bonding and surface passivating features,demonstrates high performance at high current densities and good capacity retention during long-term *** rational design of interface coherent engineering and surface coating layers of the LNMO cathode material offers a new perspective for the practical application of high-voltage lithium-ion batteries.

关键词： high-voltage cathode interface-coherent surface passivating electrochemical performance

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A flame-retardant binder with high polysulfide affinity for safe and stable lithium–sulfur batteries

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Science China Chemistry 2024年第3期67卷 1028-1036页

作者： Guowei Yu Guofeng Ye Cheng Wang Chenyang Wang Zhaoyun Wang Pu Hu Yu Li Xi-Xi Feng Shuang-Jie Tan min Yan Sen Xin Zhitian Liu Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Hubei Engineering Technology Research Center of Optoelectronic and New Energy MaterialsSchool of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Lithium-sulfur(Li-S) batteries have shown promises for the next-generation, high-energy electrochemical storage, yet are hindered by rapid performance decay due to the polysulfide shuttle in the cathode and safety concerns about potential thermal runaway. To address the above challenges, herein, we show a flame-retardant cathode binder that simultaneously improves the electrochemical stability and safety of batteries. The combination of soft and hard segments in the polymer framework of binders allows high flexibility and mechanical strength for adapting to the drastic volume change during the Li(de)intercalation of the S cathode. The binder contains a large number of polar groups, which show the high affinity to polysulfides so that they help to anchor active S species at the cathode. These polar groups also help to regulate and facilitate the Li-ion transport, promoting the kinetics of polysulfide conversion reaction. The binder contains abundant phosphine oxide groups, which, in the case of battery's thermal runaway, decompose and release po· radicals to quench the combustion reactions and stop the fire. Consequently, Li-S batteries using the new cathode binder show the improved electrochemical performance, including a low-capacity decay of 0.046% per cycle for 800 cycles at 1 C and favorable rate capabilities of up to 3 C. This work offers new insights on the practical realization of high-energy rechargeable batteries with stable storage electrochemistry and high safety.

关键词： lithium–sulfur battery polymer binder polysulfide affinity flame retardancy

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