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World Journal of Psychiatry 2025年第1期15卷 137-144页

作者： Juan Fang Li-hui Li Ming-Qian He Yue Ji Dong-Yan Lu Li-Bing Zhang jin-Lan Yao School of Medicine Huzhou UniversityHuzhou 313000Zhejiang ProvinceChina

BACKGROUND Frailty has become a significant public health *** recent increase in the number of frail older adults has led to increased attention being paid to psycho-logical care services in *** social isolation of pre-frail older adults can impact their psychological *** To explore the mediating effect of health literacy between social isolation and psychological distress among communitydwelling older adults with *** This descriptive cross-sectional study was conducted with 254 pre-frail older individuals aged 60 years and *** isolation,health literacy,and psycholo-gical distress were comprehensively measured using the Lubben Social Network Scale-6,12-item Short-Form Health Literacy Questionnaire,and the Kessler Psy-chological Distress *** were evaluated using the SPSS 27.0 package program and the PROCESS macro *** statistical analyses,correlation analyses,and bootstrap mediation tests were used to assess associations between the *** The results showed that social isolation had an effect on health literacy among pre-frail older adults(β=0.240,P<0.001),social isolation impact on psycho-logical distress pre-frail older adults(β=-0.415,P<0.001);health literacy was identified effect on psychological distress among pre-frail older persons(β=-0.307,P<0.001).Health literacy partially mediated the relationship between social isolation and psychological distress among community-dwelling older adults with pre-frailty,with a mediation effect of-0.074,accounting for 17.83%of the total effect.

关键词： Frail Ageing Psychological distress Health literacy Social isolation

Recent progresses in thermal treatment of β-Ga_(2)O_(3) single crystals and devices

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1659-1677页

作者： Yuchao Yan Zhu jin hui Zhang Deren yang State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China Zhejiang Provincial Key Laboratory of Power Semiconductor Materials and Devices ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou 311200China

In recent years,ultra-wide bandgap β-Ga_(2)O_(3) has emerged as a fascinating semiconductor material due to its great potential in power and photoelectric *** semiconductor industrial,thermal treatment has been widely utilized as a convenient and effective approach for substrate property modulation and device ***,a thorough summary of β-Ga_(2)O_(3) substrates and devices behaviors after high-temperature treatment should be *** this review,we present the recent advances in modulating properties of β-Ga_(2)O_(3) substrates by thermal treatment,which include three major applications:(ⅰ)tuning surface electrical properties,(ⅱ)modifying surface morphology,and(ⅲ)oxidating ***,regulating electrical contacts and handling with radiation damage and ion implantation have also been discussed in device *** each category,universal annealing conditions were speculated to figure out the corresponding problems,and some unsolved questions were proposed *** review could construct a systematic thermal treatment strategy for various purposes and applications of β-Ga_(2)O_(3).

关键词： β-gallium oxide thermal treatment substrates devices

High precision analysis of Mg isotopic composition in olivine by laser ablation MC-ICP-MS

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High precision analysis of Mg isotopic composition in olivin...

Investigation on dynamic characteristics of a rod fastening rotor-bearing coupling system with fixed-point rubbing

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Lie-Wen Xie,~(*a)Qing-Zhu Yin,~(*b)jin-hui yang,~aFu-Yuan Wu~a and Yue-Heng yang~a ~aState Key Laboratory of Lithospheric Evolution,Institute of Geology and Geophysics,Chinese Academy of Sciences,P.O.Box 9825,Beijing, 100029,China. ~bDepartment of Geology,University of California at Davis,One Shields Ave.,Davis,CA,95616,USA.

We have developed a method for high precision magnesium isotope measurements in olivine using laser ablation multi-collector inductively coupled plasma mass spectrometry(LA-MC-ICP-MS).The uncertainties of Mg isotopic measurements are 0.071,0.042 and 0.030‰(2 standard deviations,2 SD) forδMg,δMg andδMg,respectively,an improvement in precision by a factor of 3 to an order of magnitude over previous reports using similar *** precision now is comparable to that of the solution sampling *** fully exploit the high precision capability,the relative position between sample and standard needs to be carefully *** artifact could be induced at the level of～0.1±0.1‰range if the samples and standards are too far apart in a large volume sample *** Mg isotopic compositions of three terrestrial olivine and two pallasite olivine samples are shown to be identical to that of San Carlos olivine standard within analytical *** found no detectable radiogenic Mg in the pallasite and chondrule olivines.

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Applied Mathematics and Mechanics(English Edition) 2022年第7期43卷 1063-1080页

作者： yang yang HJOUyang jin ZENG hui MA Yiren yang Dengqing CAO School of Mechanics and Engineering Southwest Jiaotong UniversityChengdu 610031China Centre for Engineering Dynamics School of EngineeringUniversity of LiverpoolLiverpool L693GHU.K. School of Mechanical Engineering and Automation Northeastern UniversityShenyang 110819China School of Astronautics Harbin Institute of TechnologyHarbin 150001China

The aim of this paper is to gain insight into the nonlinear vibration feature of a dynamic model of a gas ***,a rod fastening rotor-bearing coupling model with fixed-point rubbing is proposed,where the fractal theory and the finite element method are *** contact analysis,a novel contact force model is introduced in this ***,the Coulomb model is adopted to expound the friction ***,the governing equations of motion of the rotor system are numerically solved,and the nonlinear dynamic characteristics are analyzed in terms of the bifurcation diagram,Poincarémap,and time ***,the potential effects provided by contact degree of joint interface,distribution position,and amount of contact layer are discussed in ***,the contrast analysis between the integral rotor and the rod fastening rotor is conducted under the condition of fixed-point rubbing.

关键词： rod fastening rotor joint interface fixed-point rubbing nonlinear dynamic characteristic

Recent advances on bioreceptors and metal nanomaterials——based electrochemical impedance spectroscopy biosensors

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Rare Metals 2023年第4期42卷 1098-1117页

作者： Zi-Bo Chen hui-hui jin Zhu-Gen yang Da-Ping He School of Materials and Science Engineering Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-Microwave Technology and Application School of ScienceWuhan University of TechnologyWuhan 430070China School of Water Energy and EnvironmentCranfield UniversityCranfield MK430ALUK

Metal-based nanomaterials have a wide range of applications in energy conversion,catalysis,bioimaging,and *** our review,we mainly introduce metal nanomaterials-based electrochemical impedance spectroscopy(EIS)biosensors in medical healthcare,environmental monitoring,and food safety instructively,with collecting and analyzing the current achievement of *** general,metal nanomaterials-based EIS biosensors can be divided into four components,in which bioreceptors and metal nanomaterials transducers are vital for *** and metal nanomaterials determine the feasibility,specificity,sensitivity and simplicity of manufacturing and *** the demonstration and discussion of bioreceptors and metal nanomaterials of biosensors in different fields,our review aims to assist brief acknowledgement of current state-of-the-art achievement and provide our insights for the future development.

关键词： Metal nanomaterials Electrochemical impedance spectroscopy(EIS) Biosensors Bioreceptors

A Periodic Dividend Problem with Inconstant Barrier in Markovian Environment

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Acta Mathematica Sinica,English Series 2015年第2期31卷 281-294页

作者： Fang jin hui OU Xiang Qun yang College of Mathematics and Computer Sciences Hu'nan Normal University

Periodic dividend problem is a meaningful issue. Based on a compound binomial model with periodic dividend, we use a homogeneous, ergodic and irreducible discrete-time Markov chain to express the evolution from one period to the subsequent of the economic or the environmental and climatic conditions. We derive some properties about the model. A system of integral equations for the expectation and the r-th moment of discounted dividends until ruin time are obtained respectively. Moreover, by using of Contraction Mapping Principle, we solve the equation system and obtain the explicit expression.

关键词： Periodic dividend Markovian environment inconstant barrier ruin time discounted dividends contraction mapping principle

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

Vision-based multi-level synthetical evaluation of seismic damage for RC structural components: a multi-task learning approach

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Earthquake Engineering and Engineering Vibration 2023年第1期22卷 69-85页

作者： Xu yang Qiao Weidong Zhao jin Zhang Qiangqiang Li hui Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and InformationTechnology Harbin Institute of TechnologyHarbin 150090China Key Lab of Structures Dynamics Behavior and Control of the Ministry of Education Harbin Institute of TechnologyHarbin 150090China School of Civil Engineering Harbin Institute of TechnologyHarbin 150090China School of Civil Engineering and Mechanics Lanzhou UniversityLanzhou 730000China

Recent studies for computer vision and deep learning-based,post-earthquake inspections on RC structures mainly perform well for specific tasks,while the trained models must be fine-tuned and re-trained when facing new tasks and datasets,which is inevitably *** study proposes a multi-task learning approach that simultaneously accomplishes the semantic segmentation of seven-type structural components,three-type seismic damage,and four-type deterioration *** proposed method contains a CNN-based encoder-decoder backbone subnetwork with skip-connection modules and a multi-head,task-specific recognition *** backbone subnetwork is designed to extract multi-level features of post-earthquake RC *** multi-head,task-specific recognition subnetwork consists of three individual self-attention pipelines,each of which utilizes extracted multi-level features from the backbone network as a mutual guidance for the individual segmentation task.A synthetical loss function is designed with real-time adaptive coefficients to balance multi-task losses and focus on the most unstably fluctuating *** experiments and comparative studies are further conducted to demonstrate their effectiveness and *** results show that the proposed method can simultaneously recognize different structural components,seismic damage,and deterioration states,and that the overall performance of the three-task learning models gains general improvement when compared to all single-task and dual-task models.

关键词： post-earthquake evaluation multi-task learning computer vision structural component segmentation seismic damage recognition deterioration state assessment

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CHR/PVC共混增容研究

特种橡胶制品 2002年第2期23卷 1-3页

作者：左金辉王朝阳华南理工大学材料研究所

以聚 2 -乙烯基吡啶和聚环氧乙烷多嵌段共聚物 (P2VP -b -PEO)为增容剂 ,研究了氯醚橡胶 (CHR)和聚氯乙烯 (PVC)之间的共混 ,考察了增容剂用量、PVC/CHR配比、增容剂组成、增容剂中P2VP链段长度对共混物机械性能的影响。发现 2 %～ 3%... 详细信息

以聚 2 -乙烯基吡啶和聚环氧乙烷多嵌段共聚物 (P2VP -b -PEO)为增容剂 ,研究了氯醚橡胶 (CHR)和聚氯乙烯 (PVC)之间的共混 ,考察了增容剂用量、PVC/CHR配比、增容剂组成、增容剂中P2VP链段长度对共混物机械性能的影响。发现 2 %～ 3%的多嵌段共聚物能够很好地增容CHR/PVC共混体系 ,多嵌段共聚物中PEO链段含量越高、P2VP链段越长 ,增容效果越好。

关键词： CHR PVC 共混增容研究氯醚橡胶聚氯乙烯多嵌段共聚物

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学衡派的文学批评

吉首大学学报（社会科学版） 2003年第1期24卷 53-56页

作者：罗惠缙阳耀芳吉首大学文学与新闻传播学院湖南吉首416000 常德财校湖南常德415000

学衡派与五四新文化派在新文学建设上具有一致性,但也存在分歧。这主要表现在学衡派对五四新文学批评的五个方面:即文学名分上的新旧之分,关于"文学进化论"问题,文学的贵族和平民之争,文学创造的方法问题,文学革命与文学专制等。尽管其... 详细信息

学衡派与五四新文化派在新文学建设上具有一致性,但也存在分歧。这主要表现在学衡派对五四新文学批评的五个方面:即文学名分上的新旧之分,关于"文学进化论"问题,文学的贵族和平民之争,文学创造的方法问题,文学革命与文学专制等。尽管其批评具有一些不足和缺陷,但学衡派针对五四新文化运动过分反传统而带来的缺陷性的攻击也具有学理上的积极因素。

关键词：学衡派文学批评五四新文学