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Protective Factors for Loneliness among Adolescents during COVID-19: Role of the Interpersonal Relationships and Sibling Status

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International Journal of Mental Health Promotion 2021年第4期23卷 499-511页

作者： Sha Shen saidi wang Md Zahir Ahmed Fatema Akhter Hiramoni Jingrong Sha Xiangdong Yan Mary C.Jobe Oli Ahmed College of Educational Science and Technology Northwest Minzu UniversityLanzhou730030China Gansu 24 Refractive New Media Technology Co. Ltd.Lanzhou730030China School of Psychology Northwest Normal UniversityLanzhou730070China Department of Economics Sheikh Hasina UniversityNetrokona2410Bangladesh Shanghai Hui Ye(Lanzhou)Law Office Lanzhou730030China Department of Psychological and Brain Sciences The George Washington UniversityWashington DC20052USA Department of Psychology University of ChittagongChattogram4331Bangladesh

This study examined the moderating effects of parent-child,same-sex,opposite-sex and teacher-student relation-ships between sibling status and loneliness during COVID-19.A total of 1,591 adolescents in China completed the study questionnaires which assessed the aforementioned *** results showed that same-sex and teacher-student relationships moderated the association between sibling status and *** results indicated that among participants with good same-sex relationships during COVID-19,compared to non-only-children parti-cipants,the only-children participants were more likely to experience a lower level of ***,parti-cipants with poor same-sex relationships experienced similar level of loneliness regardless of whether they had *** would be helpful for parents,teachers,and other stakeholders to take effective measures to reduce loneliness feelings among Chinese adolescents.

关键词： COVID-19 only-children and non-only children interpersonal relationships loneliness moderating effects

二维层状双金属氢氧化物在去除磷酸盐中的应用

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化工进展 2022年第7期41卷 3689-3706页

作者：杨靖范议议王赛娣王福凯孟秀霞杨乃涛刘少敏山东理工大学化学化工学院山东淄博255049 北京化工大学化学工程学院北京100029

层状双金属氢氧化物(LDH)是磷酸盐去除的良好吸附剂,具有表面易改性、电荷可调、层间距可控、吸附能力强和吸附速度快的特点,能够有效解决水体富营养化问题。本文从LDH除磷性能的优化出发,综述了LDH的结构特征、除磷机理、制备方法、剥... 详细信息

层状双金属氢氧化物(LDH)是磷酸盐去除的良好吸附剂,具有表面易改性、电荷可调、层间距可控、吸附能力强和吸附速度快的特点,能够有效解决水体富营养化问题。本文从LDH除磷性能的优化出发,综述了LDH的结构特征、除磷机理、制备方法、剥离方法的前沿理论和应用案例;基于目前LDH用作磷酸盐吸附剂面临着易团聚、胶体溶液不稳定、性能受控于pH以及难回收等问题,分析了磁性LDH、生物炭/LDH、GO(rGO)/LDH等复合材料的复合方法和性能改进方案,指出了LDH复合改性和LDH膜材料的研究新趋势,以及主要研究重点与热点。希望本文能够为LDH在水处理领域的研究提供新思路,为深入优化LDH吸附和膜分离性能提供理论支持和方向引导。

关键词：层状双金属氢氧化物功能性LDH复合材料阴离子去除磷酸盐吸附

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辽宁长历时强降水的环境特征分析

大气科学学报 2017年第3期40卷 321-332页

作者：陈传雷管兆勇王赛頔贾旭轩苏航南京信息工程大学气象灾害教育部重点实验室江苏南京210044 辽宁省气象灾害监测预警中心辽宁沈阳110016 辽宁省抚顺市气象台辽宁抚顺113300 沈阳中心气象台辽宁沈阳110016

利用NCEP 1°×1°格点再分析、FY-2E相当黑体亮温TBB和地面加密自动气象站等资料,分析了辽宁3次典型长历时强降水TBB值与降水强度的关系、中尺度环境场特征及维持机制,并初步建立了辽宁长历时强降水概念预报模型。结果表明:在副热带高... 详细信息

利用NCEP 1°×1°格点再分析、FY-2E相当黑体亮温TBB和地面加密自动气象站等资料,分析了辽宁3次典型长历时强降水TBB值与降水强度的关系、中尺度环境场特征及维持机制,并初步建立了辽宁长历时强降水概念预报模型。结果表明:在副热带高压的形态、位置和强度有利于辽宁产生强降水的大尺度形势下,副热带高压西侧低空急流持续输送的充沛暖湿空气与高空干冷空气在同一地点长时间相互作用,为强降水的发生和维持提供了有利的环境背景条件。强降水持续时间与其上空的强垂直速度持续时间有很好的对应关系,强降水持续时高空一般为弱的不稳定或中性层结。强降水不仅可出现在对流云团发展旺盛的冷云区内部或边缘,也可发生在TBB值较小的暖云区内。TBB值的大小与降水强度没有必然的关系,但TBB值的快速减小都预示强降水即将发生。这些结论有利于深化认识辽宁地区长历时强降水的成因并为预报提供线索。

关键词：长历时强降水环境特征 TBB

Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song He Li Li Sai wang Shao-Jiang wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan wang Fan Zhang Xingyu Zhou Qian wang Changyu Liu Yangyang Liu Hui wang Xiaojie Liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 C,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling over 200 cycles at a high 5 C current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate Cathode

羟基化MXene二维层状膜对重金属离子的脱除

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膜科学与技术 2022年第1期42卷 57-64,71页

作者：王赛娣范议议孟秀霞靳昀张津津杨乃涛山东理工大学化学化工学院淄博255049

近年来,现代工业迅速发展的同时,也导致了废水排放量的增加,其中水体重金属污染已经成为目前亟待解决的问题之一.膜分离高效、环保和无污染的优势,被广泛用于重金属废水处理.本实验利用LiF和HCl混合溶液刻蚀MAX相(Ti_(3)AlC_(2)),制备... 详细信息

近年来,现代工业迅速发展的同时,也导致了废水排放量的增加,其中水体重金属污染已经成为目前亟待解决的问题之一.膜分离高效、环保和无污染的优势,被广泛用于重金属废水处理.本实验利用LiF和HCl混合溶液刻蚀MAX相(Ti_(3)AlC_(2)),制备了稳定的Ti_(3)C_(2)(MXene)胶体溶液;通过真空辅助抽滤,组装成层间通道可控的、稳定性较好的MXene膜;利用KOH溶液碱化处理,得到表面改性的碱化MXene(Ak-MXene)膜.以压力为驱动力,考察了膜对水体中Cr^(6+)、Pb^(2+)、Cu^(2+)和Cd^(2+)的脱除率.结果表明,随着膜厚的逐渐增加,Ak-MXene膜对重金属离子的拦截率逐渐增大;0.02 MPa下,厚度为496 nm的Ak-MXene膜对Cr^(6+)、Pb^(2+)、Cu^(2+)和Cd^(2+)的最高拦截率分别为66.19%、76.57%、78.65%和79.21%.可见Ak-MXene膜对重金属具有较高的拦截率,有望应用于水体净化.

关键词：膜分离 MXene层状膜羟基化重金属脱除率

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie wang Wei wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

Dual modulation of homogeneous nanomaterialization and electrochemical activation enhancing zinc ion storage

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Science China Chemistry 2025年第01期 385-393页

作者： Jianwei wang Huan wang Kangning wang Wenhui wang Wenlin Zhang Yanzhong Zhen School of Chemistry & Chemical Engineering Yan'an University

Vanadium-based electrode materials are widely investigated,but the low specific capacity and slow electrochemical kinetics in aqueous zinc-ion batteries still limit their commercial ***,the VS2/Ca V4O9material with the morphology of nanoflower was synthesized by a one-step hydrothermal *** to the blocky structure of pure VS2material,the VS2/Ca V4O9material is composed of thinner homogeneous *** open structures could provide abundant electrochemical active sites and ion transport channels,and then promote the electrochemical reaction *** addition,they can also buffer the bulk strain during the reaction *** improve the utilization of vanadium elements,an in-situ electrochemical activation strategy is used to explore the storage performance of the VS2/Ca V4O9material,the different activation voltage range of 0.4–1.6 and 0.4–1.4 V are selected,*** with the longer activation plateau of activated-VS2,the VS2/Ca V4O9cathode could quickly reach the activation state in the range of 1.4–1.6 V and cause the release of additional Zn storage sites *** VS2/Ca V4O9cathode delivers a higher power density of 37,000 W kg-1and a significant energy density of 423 Wh *** the high current density of 15 A g-1,the VS2/Ca V4O9cathode still has a discharge capacity of 183.9m Ah g-1after 5,000 cycles,and the capacity decay rate per cycle is only 0.0042%.Continuous cyclic voltammetry （CV） curves,electrochemical impedance spectroscopy （EIS） measurements,density functional theory （DFT） calculation and galvanostatic intermittent titration technique （GITT） measurements demonstrate that the VS2/Ca V4O9cathode has a faster ion diffusion/charge transfer ***,the assembled flexible device has an excellent mechanical stability.

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High-energy-density lithium manganese iron phosphate for lithium-ion batteries: Progresses, challenges, and prospects

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Journal of Energy Chemistry 2025年第1期100卷 1-17页

作者： Bokun Zhang Xiaoyun wang Shuai wang Yan Li Libo Chen Handong Jiao Zhijing Yu Jiguo Tu State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Research Institute for Intelligent Wearable Systems The Hong Kong Polytechnic University Institute of Advanced Structure Technology Beijing Institute of Technology

The soaring demand for smart portable electronics and electric vehicles is propelling the advancements in high-energy–density lithium-ion *** manganese iron phosphate (LiMnxFe1-xPO4) has garnered significant attention as a promising positive electrode material for lithium-ion batteries due to its advantages of low cost,high safety,long cycle life,high voltage,good high-temperature performance,and high energy *** LiMnxFe1-xPO4has made significant breakthroughs in the past few decades,there are still facing great challenges in poor electronic conductivity and Li-ion diffusion,manganese dissolution affecting battery cycling performance,as well as low tap *** review systematically summarizes the reaction mechanisms,various synthesis methods,and electrochemical properties of LiMnxFe1-xPO4to analyze reaction processes accurately and guide material ***,the main challenges currently faced are concluded,and the corresponding various modification strategies are discussed to enhance the reaction kinetics and electrochemical performance of LiMnxFe1-xPO4,including multi-scale particle regulation,heteroatom doping,surface coating,as well as microscopic morphology ***,in view of the current research challenges faced by intrinsic reaction processes,kinetics,and energy storage applications,the promising research directions are *** importantly,it is expected to provide key insights into the development of high-performance and stable LiMnxFe1-xPO4materials,to achieve practical energy storage requirements.

关键词： Lithium manganese iron phosphate High energy density Lithium-ion batteries Reaction mechanism Tap density