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A surface engineering strategy for the stabilization of zinc metal anodes with montmorillonite layers toward long-life rechargeable aqueous zinc ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 94-105页

作者： Wenbo Wang Ruifeng Xu Xu Zhang Peiyu Wang Bao yang Bingjun yang juan yang Kailimai Su Pengjun Ma Yanan Deng Xianfeng Fan Wanjun Chen Key Laboratory for Electronic Materials College of Electrical Engineering Northwest Minzu University Resource Chemistry and Energy Materials Research Center State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Institute for Materials and Processes School of Engineering University of Edinburgh

Rechargeable aqueous zinc-ion batteries （AZIBs） exhibit appreciable potential in the domain of electrochemical energy ***,there are serious challenges for AZIBs,for instance zinc dendrite growth,hydrogen evolution reaction （HER）,and corrosion side ***,we propose a surface engineering modification strategy for coating the montmorillonite （MMT） layer onto the surface of the Zn anode to tackle these issues,thereby achieving high cycling stability for rechargeable *** results reveal that the MMT layer on the surface of the Zn anode is able to provide ordered zincophilic channels for zinc ions migration,facilitating the reaction kinetics of zinc *** functional theory（DFT） calculations and water contact angle （CA） tests prove that MMT@Zn anode exhibits superior adsorption capacity for Zn2+and better hydrophobicity than the bare Zn anode,thereby achieving excellent cycling ***,the MMT@Zn||MMT@Zn symmetric cell holds the stable cycling over 5600 h at 0.5 mA cm-2and 0.125 m A h cm-2,even exceeding 1800 h long cycling under harsh conditions of 5 m A cm-2and 1.25 m A h *** MMT@Zn||V2O5full cell reaches over 3000 cycles at 2 A g-1with excellent rate ***,this surface engineering modification strategy for enhancing the electrochemical performance of AZIBs represents a promising application.

关键词： Surface engineering strategy Montmorillonite layer Protection mechanism of Zn anode Cycling stability Aqueous zinc ion batteries

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Aberrant DNA methylation in cervical carcinogenesis

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Chinese Journal of Cancer 2013年第1期32卷 42-48页

作者： Hui-juan yang Department of Gynecologic Oncology Fudan University Shanghai Cancer Center

Persistent infection wit h high-risk types of human papillomavirus(HPV) is known to cause cervical cancer;however,additional genetic and epigenetic alterations are required for progression from precancerous disease to invasive *** methylation is an early and frequent molecular alteration in cervical *** this review,we summarize DNA methylation within the HPV genome and human genome and identify its clinical *** of the HPV long control region(LCR) and L1 gene is common during cervical carcinogenesis and increases with the severity of the cervical *** L1 gene of HPV16 and HPV18 is consistently hypermethylated in invasive cervical cancers and can potentially be used as a clinical marker of cancer ***,promoters of tumor suppressor genes(TSGs) involved in many cellular pathways are methylated in cervical precursors and invasive *** are associated with squamous cell carcinomas,and others are associated with *** of methylated TSGs in Pap smear could be an adjuvant test in cervical cancer screening for triage of women with high-risk HPV,atypical squamous cells of undetermined significance,or low grade squamous intraepithelial lesion(LSIL).However,consistent panels must be validated for this approach to be translated to the ***,reversion of methylated TSGs using demethylating drugs may be an alternative anticancer treatment,but demethylating drugs without toxic carcinogenic and mutagenic properties must be identified and validated.

关键词： DNA甲基化子宫颈癌人类基因组 HPV16 乳头状瘤病毒异常抑癌基因肿瘤抑制基因

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Fast TMRM:efficient multi-task recommendation model

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The Journal of China Universities of Posts and Telecommunications 2020年第5期27卷 13-22页

作者： Zhu Fan yang juan School of Computer Science and Technology Beijing University of Posts and TelecommunicationsBeijing 100876China

An improved multi-task learning recommendation algorithm-fast two-stage multi-task recommendation model boosted feature selection(Fast TMRM) is proposed based on auto-encoders in this paper. Compared to previous work, Fast TMRM improves the convergence speed and accuracy of training. In addition, Fast TMRM builds on previous work to introduce the auto-encoder to encode the important feature combination vector. That is how it can be used for the training of multi-task learning, which helps to improve the training efficiency of the model by nearly 67%. Finally, the nearest neighbor search is used to restore important feature expression.

关键词： recommendation algorithm feature combination auto-encoder

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Reflected SPDEs Driven by Fractional Noises

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Acta Mathematicae Applicatae Sinica 2020年第2期36卷 347-360页

作者： juan yang Qing ZHOU School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China

In this paper,we study the stochastic partial differential equation with two reflecting smooth walls h^1 and h^2,driven by a fractional noise,which is fractional in time and white in *** large deviation principle for the law of the solution to this equation,will be established through developing a classical ***,we obtain the H?lder continuity of the solution.

关键词： stochastic partial differential equations with two reflecting walls fractional Brownian motion large deviation principle Holder continuity

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睡眠效率相关的皮质醇觉醒反应的变异性及其与特质焦虑和心理弹性的关系

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心理学报 2025年第1期57卷 84-99页

作者：杨子健赵小淋郭凯格罗家豪杜腾飞张雅洁胡月琴杨娟西南大学心理学部认知与人格教育部重点实验室重庆400715 北京师范大学心理学部北京100875

皮质醇觉醒反应(CAR)与个体心理健康的关系仍存在争议。为此,本研究引入多天内CAR变异性作为新指标,以弥补传统CAR平均量指标因受状态类因素影响而导致研究结论不一致的问题,并探究其与特质焦虑和心理弹性的关系。实验1通过自然睡眠情... 详细信息

皮质醇觉醒反应(CAR)与个体心理健康的关系仍存在争议。为此,本研究引入多天内CAR变异性作为新指标,以弥补传统CAR平均量指标因受状态类因素影响而导致研究结论不一致的问题,并探究其与特质焦虑和心理弹性的关系。实验1通过自然睡眠情境降低睡眠效率的变异来降低CAR变异性,发现自然睡眠日下的CAR变异性与特质焦虑分数之间呈显著的正相关,说明稳定环境下较小的CAR变异性伴随着个体较低的特质焦虑水平。实验2则通过完全睡眠剥夺的操纵提高CAR变异性,发现睡眠剥夺前后的CAR变异性与心理弹性呈显著的正相关。说明变动环境下较大的CAR变异性伴随着个体较高的心理弹性水平。与之相对,两项实验中的CAR均值均未表现出与特质焦虑或心理弹性的显著相关。上述结果表明,在CAR均值外,还可以考虑CAR变异性作为衡量心理健康更为有效的生理指标。在多天内考虑CAR变异性对于理解个体如何适应日常生活中的压力和挑战具有重要意义,并且可以为促进心理健康和设计有效的干预策略提供新的视角和可能的思路。

关键词：皮质醇觉醒反应变异性睡眠效率特质焦虑心理弹性

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Biomass-derived activated carbon materials with plentiful heteroatoms for high-performance electrochemical capacitor electrodes

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Journal of Energy Chemistry 2016年第1期25卷 35-40页

作者： Xiangyang Zhou Hongcheng Li juan yang School of Metallurgy and Environment Central South University

Activated carbons for electrochemical capacitor electrodes are prepared from soyabean using chemical activation with KOH. The pore size is easily controllable by changing the mass ratio between KOH and carbonized product. The as-prepared materials possess a large specific surface area, unique structure, well- developed hierarchical porosity and plentiful heteroatoms（mainly O and N）. Thus resulted in its high specific capacitance,good rate capacity and cycling stability. Moreover, attributing to worldwide availability, renewable nature and low-cost, activated carbon prepared from soyabean has a good potential in energy conversion and storage devices.

关键词： Electrochemical capacitor Activated carbon Soyabean Heteroatoms

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Sediment transport and carbon sequestration characteristics along mangrove fringed coasts

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Acta Oceanologica Sinica 2015年第2期34卷 21-26页

作者： TU Qiang yang Shengyun ZHOU Qiulin yang juan College of Ocean and Earth Science Xiamen University Third Institute of Oceanography State Oceanic Administration School of Marine Science China University of Geosciences

Mangroves play an important role in sequestering carbon and trapping sediments. However, the effectiveness of such functions is unclear due to the restriction of knowledge on the sedimentation process across the vegetation boundaries. To detect the effects of mangrove forests on sediment transportation and organic carbon sequestration, the granulometric and organic carbon characteristics of mangrove sediments were investigated from three vegetation zones of four typical mangrove habitats on the Leizhou Peninsula coast. Based on our results, sediment transport was often ＂environmentally sensitive＂ to the vegetation friction. A transition of the sediment transport mode from the mudflat zone to the interior/fringe zone was often detected from the cumulative frequency curve. The vegetation cover also assists the trapping of material, resulting in a significantly higher concentration of organic carbon in the interior surface sediments. However, the graphic parameters of core sediments reflected a highly temporal variability due to the sedimentation process at different locations. The sediment texture ranges widely from sand to mud, although the sedimentary environments are restricted within the same energy level along the fluvial-marine transition zone. Based on the PCA results, the large variation was mainly attributed to either the mean grain size features or the organic carbon features. A high correlation between the depth and δ13C value also indicated an increasing storage of mangrove-derived organic carbon with time.

关键词： mangroves grain size distribution sedimentary organic carbon Leizhou Peninsula

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Frictionless Multi-field Coupling Contact Problem for a Thermoelectric Layer Loaded by Two Rigid Punches

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Acta Mechanica Solida Sinica 2023年第2期36卷 282-292页

作者： Yali Zhang Hailiang Ma juan yang Shenghu Ding School of Mathematics and Statistics Ningxia UniversityYinchuan 750021China School of Ethnic Preparatory Education Ningxia UniversityYinchuan 750021China

In this paper,the thermo-electro-mechanical coupling contact problem of thermoelectric material with double punches is analyzed *** the Fourier cosine transform technique,the thermo-electro-elastic problem is transformed into three sets of singular integral equations,which are numerically solved by the Gauss–Chebyshev integral formula according to the unknown normal electric current density,normal energy flux and normal contact *** a rigid flat indenter,the results can be covered by the degradation results of two rigid flat *** numerical results reveal the interaction between two punches and the effect of thermoelectric load on the indentation *** interaction between the two punches reduces the contact pressure at the inner edge of the indenter as the thermoelectric load increases while increasing the stress singularity at the outer *** change of punches’spacing makes the singularity of normal stress at the inner and outer edges *** results provide an in-depth understanding of the multi-region contact damage mechanism of thermoelectric material.

关键词： Thermoelectric material Two rigid punches Interaction Analytical solutions

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Moderate deviation principle for stochastic reaction-diffusion systems with multiplicative noise and non-Lipschitz reaction

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Statistical Theory and Related Fields 2022年第4期6卷 299-308页

作者： juan yang School of Science Beijing University of Posts and TelecommunicationsBeijingPeople's Republic of China

In this article,we obtain a central limit theorem and prove a moderate deviation principle for stochastic reaction-diffusion systems with multiplicative noise and non-Lipschitz reaction term.

关键词： Non-Lipschitz central limit theorems moderation deviations

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Multiple conical spin order in spinel structure stabilized by magnetic anisotropy

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Frontiers of physics 2017年第3期12卷 93-99页

作者： Xiao-Yan Yao Li-juan yang Department of Physics Southeast University Nanjing 211189 China School of Information Science and Technology Suqian Cohege Suqian 223800 China

Conical spin order, where the spin components along the conical axis form magnetization while the spiral parts induce ferroelectric polarization, possesses multiferroicity with inherent magnetoelectric coupling. A Monte Carlo simulation performed using a classical Heisenberg spinel （AB2O4） model reveals a multiple conical spin order, i.e., three modulations with different cone angles and wavelengths on A sites and two alternate B sites. The spin order not only exists as the ground state but also survives locally stably in a larger parameter region. The whole existence range can be effectively expanded by anisotropy to cover the cases of CoCr2O4 and MnCr2O4. The multiple conical spin order is well maintained and finely tuned by frustration and anisotropy over the whole existence range, and the magnetic and ferroelectric properties are influenced correspondingly.

关键词： conical spin order multiferroicity spinel structure Monte Carlo simulation

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