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Record-breaking bifunctional oxygen electrocatalyst accomplished by a data-driven approach for zinc-air batteries

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Journal of Energy Chemistry 2025年第1期100卷 144-145页

作者： Deviprasath Chinnadurai Zhi wei Seh Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR)

Rechargeable zinc-air batteries(ZABs) have recently drawn great attention in energy research due to their high theoretical capacity,low costs, and inherently safe nature [1–3]. However, the sluggish cathode reactions necessitate the development of bifunctional oxygen electrocatalysts with lower ΔE indicator values. The ΔE indicator is commonly employed to quantitatively evaluate the electrocatalytic activity of a bifunctional oxygen electrocatalyst,representing the overall overpotential from oxygen reduction reaction(ORR) to oxygen evolution reaction(OER).

关键词： Data-driven approach Bifunctional oxygen electrocatalyst Record breaking performance Zinc-air batteries

Brain region-specific roles of brain-derived neurotrophic factor in social stress-induced depressive-like behavior

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Neural Regeneration Research 2025年第1期20卷 159-173页

作者： Man Han Deyang Zeng wei Tan Xingxing Chen Shuyuan Bai Qiong Wu Yushan Chen Zhen wei Yufei Mei Yan Zeng Brain Science and Advanced Technology Institute Wuhan University of Science and TechnologyWuhanHubei ProvinceChina Geriatric Hospital Affiliated to Wuhan University of Science and Technology WuhanHubei ProvinceChina School of Public Health Wuhan University of Science and TechnologyWuhanHubei ProvinceChina

Brain-derived neurotrophic factor is a key factor in stress adaptation and avoidance of a social stress behavioral *** studies have shown that brain-derived neurotrophic factor expression in stressed mice is brain region–specific,particularly involving the corticolimbic system,including the ventral tegmental area,nucleus accumbens,prefrontal cortex,amygdala,and *** how brain-derived neurotrophic factor participates in stress processing in different brain regions will deepen our understanding of social stress *** this review,we discuss the expression and regulation of brain-derived neurotrophic factor in stress-sensitive brain regions closely related to the pathophysiology of *** focused on associated molecular pathways and neural circuits,with special attention to the brain-derived neurotrophic factor–tropomyosin receptor kinase B signaling pathway and the ventral tegmental area–nucleus accumbens dopamine *** determined that stress-induced alterations in brain-derived neurotrophic factor levels are likely related to the nature,severity,and duration of stress,especially in the above-mentioned brain regions of the corticolimbic ***,BDNF might be a biological indicator regulating stress-related processes in various brain regions.

关键词： amygdala chronic mild stress chronic social defeat stress corticolimbic system depression hippocampus medial prefrontal cortex nucleus accumbens social stress models ventral tegmental area

An Efficient Mapped WENO Scheme Using Approximate Constant Mapping

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Numerical Mathematics(Theory,Methods and Applications) 2022年第1期15卷 1-41页

作者： ruo Li wei Zhong CAPT LMAMPeking UniversityBeijing 100871China School of Mathematical Sciences Peking UniversityBeijing 100871China Northwest Institute of Nuclear Technology Xi’an 710024China

We present a novel mapping approach for WENO schemes through the use of an approximate constant mapping function which is constructed by employing an approximation of the classic signum *** new approximate constant mapping function is designed to meet the overall criteria for a proper mapping function required in the design of the WENO-PM6 *** WENO-PM6 scheme was proposed to overcome the potential loss of accuracy of the WENO-M scheme which was developed to recover the optimal convergence order of the WENO-JS scheme at critical *** new mapped WENO scheme,denoted as WENOACM,maintains almost all advantages of the WENO-PM6 scheme,including low dissipation and high resolution,while decreases the number of mathematical operations remarkably in every mapping process leading to a significant improvement of *** convergence rates of the WENO-ACM scheme have been shown through one-dimensional linear advection equation with various initial *** results of one-dimensional Euler equations for the Riemann problems,the Mach 3 shock-density wave interaction and the Woodward-Colella interacting blastwaves are improved in comparison with the results obtained by the WENO-JS,WENO-M and WENO-PM6 *** experiments with two-dimensional problems as the 2D Riemann problem,the shock-vortex interaction,the 2D explosion problem,the double Mach reflection and the forward-facing step problem modeled via the two dimensional Euler equations have been conducted to demonstrate the high resolution and the effectiveness of the WENO-ACM *** WENOACM scheme provides significantly better resolution than the WENO-M scheme and slightly better resolution than the WENO-PM6 scheme,and compared to the WENOM and WENO-PM6 schemes,the extra computational cost is reduced by more than 83%and 93%,respectively.

关键词： WENO approximate constant mapping hyperbolic problems high resolution low computational cost

Solar cycles during the seventeenth century revealed by equatorial aurora records

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Earth and Planetary Physics 2025年第1期9卷 182-187页

作者： Yong wei LiMei Yan Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

Solar cycles are fundamental to astrophysics,space exploration,technological infrastructure,and Earth's climate.A better understanding of these cycles and their history can aid in risk mitigation on Earth,while also deepening our knowledge of stellar physics and solar system *** the solar cycles between 1600 and 1700-especially the post-1645 Maunder Minimum,characterized by significantly reduced solar activity-poses challenges to existing solar activity *** study utilizes a new red equatorial auroral catalog from ancient Korean texts to establish solar cycle patterns from 1623 to ***,a further reevaluation of the solar cycles between 1610 and 1755 identified a total of 13 cycles,diverging from the widely accepted record of 12 cycles during that *** research enhances our understanding of historical solar activity,and underscores the importance of integrating diverse historical sources into modern analyses.

关键词： solar cycle Maunder Minimum solar activity red equatorial aurora West Pacific geomagnetic anomaly

From text to image:challenges in integrating vision into ChatGPT for medical image interpretation

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Neural Regeneration Research 2025年第2期20卷 487-488页

作者： Shunsuke Koga wei Du Department of Pathology and Laboratory Medicine Hospital of the University of PennsylvaniaPhiladelphiaPAUSA

Large language models(LLMs),such as ChatGPT developed by OpenAI,represent a significant advancement in artificial intelligence(AI),designed to understand,generate,and interpret human language by analyzing extensive text *** potential integration into clinical settings offers a promising avenue that could transform clinical diagnosis and decision-making processes in the future(Thirunavukarasu et al.,2023).This article aims to provide an in-depth analysis of LLMs’current and potential impact on clinical *** ability to generate differential diagnosis lists underscores their potential as invaluable tools in medical practice and education(Hirosawa et al.,2023;Koga et al.,2023).

关键词： image diagnosis text

Boosting Oxygen Evolution Reaction Performance on NiFe‑Based Catalysts Through d‑Orbital Hybridization

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Nano-Micro Letters 2025年第1期17卷 281-292页

作者： Xing Wang wei Pi Sheng Hu Haifeng Bao Na Yao wei Luo State Key Laboratory of New Textile Materials and Advanced Processing Technology Key Laboratory of New Textile Materials and Applications of Hubei ProvinceSchool of Materials Science and EngineeringWuhan Textile UniversityWuhan 430200People’s Republic of China College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072People’s Republic of China

Anion-exchange membrane water electrolyzers(AEMWEs)for green hydrogen production have received intensive attention due to their feasibility of using earth-abundant NiFe-based *** introducing a third metal into NiFe-based catalysts to construct asymmetrical M-NiFe units,the d-orbital and electronic structures can be adjusted,which is an important strategy to achieve sufficient oxygen evolution reaction(OER)performance in ***,the ternary NiFeM(M:La,Mo)catalysts featured with distinct M-NiFe units and varying d-orbitals are reported in this *** and theoretical calculation results reveal that the doping of La leads to optimized hybridization between d orbital in NiFeM and 2p in oxygen,resulting in enhanced adsorption strength of oxygen intermediates,and reduced rate-determining step energy barrier,which is responsible for the enhanced OER *** critically,the obtained NiFeLa catalyst only requires 1.58 V to reach 1 A cm^(−2) in an anion exchange membrane electrolyzer and demonstrates excellent long-term stability of up to 600 h.

关键词： NiFe-based catalysts d-orbital coupling Oxygen evolution reaction Anion exchange membrane electrolyzer

An Extension of the Order-Preserving Mapping to the WENO-Z-Type Schemes

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Advances in Applied Mathematics and Mechanics 2023年第1期15卷 202-243页

作者： ruo Li wei Zhong CAPT LMAM and School of Mathematical SciencesPeking UniversityBeijing 100871China School of Mathematical Sciences Peking UniversityBeijing 100871China Northwest Institute of Nuclear Technology Xi’anShaanxi 710024China

In the present study,we extend the order-preserving(OP)criterion proposed in our latest studies to the WENO-Z-type ***,we innovatively present the concept of the generalized mapped WENO schemes by rewriting the Ztype weights in a uniform formula from the perspective of the mapping ***,we naturally introduce the OP criterion to improve the WENO-Z-type schemes,and the resultant schemes are denoted as MOP-GMWENO-X,where the notation“X”is used to identify the version of the existing WENO-Z-type scheme in this ***,extensive numerical experiments have been conducted to demonstrate the benefits of these new *** draw the conclusion that,the convergence properties of the proposed schemes are equivalent to the corresponding WENO-X *** major benefit of the new schemes is that they have the capacity to achieve high resolutions and simultaneously remove spurious oscillations for long *** new schemes have the additional benefit that they can greatly decrease the post-shock oscillations on solving 2D Euler problems with strong shock waves.

关键词： WENO Z-type weights order-preserving generalized mapping hyperbolic systems

A General Improvement in the WENO-Z-Type Schemes

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Communications in Computational Physics 2022年第5期31卷 1362-1401页

作者： ruo Li wei Zhong CAPT LMAM and School of Mathematical SciencesPeking UniversityBeijing 100871P.R.China School of Mathematical Sciences Peking UniversityBeijing 100871P.R.China Northwest Institute of Nuclear Technology ShaanxiXi’an 710024P.R.China

A new type offinite volume WENO schemes for hyperbolic problems was devised in[33]by introducing the order-preserving(OP)*** this continuing work,we extend the OP criterion to the WENO-Z-type *** rewrite the formulas of the Z-type weights in a uniform form from a mapping perspective inspired by extensive numerical ***,we build the concept of the locally order-preserving(LOP)mapping which is an extension of the order-preserving(OP)mapping and the resultant improved WENO-Z-type schemes are denoted as *** are four major advantages of the LOP-GMWENO-X schemes superior to the existing WENO-Z-type ***,the new schemes can amend the serious drawback of the existing WENO-Z-type schemes that most of them suffer from either producing severe spurious oscillations or failing to obtain high resolutions in long calculations of hyperbolic problems with ***,they can maintain considerably high resolutions on solving problems with high-order critical points at long output ***,they can obtain evidently higher resolution in the region with high-frequency but smooth ***,they can significantly decrease the post-shock oscillations for simulations of some 2D problems with strong shock *** benchmark examples are conducted to illustrate these advantages.

关键词： WENO-Z-type schemes locally order-preserving mapping hyperbolic problems

A New Mapped WENO Scheme Using Order-Preserving Mapping

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Communications in Computational Physics 2022年第2期31卷 548-592页

Existing mapped WENO schemes can hardly prevent spurious oscillations while preserving high resolutions at long output *** reveal in this paper the essential reason of such *** is actually caused by that the mapping function in these schemes can not preserve the order of the nonlinear weights of the *** nonlinear weights may be increased for non-smooth stencils and be decreased for smooth *** is then indicated to require the set of mapping functions to be order-preserving in mapped WENO ***,we propose a new mapped WENO scheme with a set of mapping functions to be order-preserving which exhibits a remarkable advantage over the mapped WENO schemes in *** long output time simulations of the one-dimensional linear advection equation,the new scheme has the capacity to attain high resolutions and avoid spurious oscillations near discontinuities *** addition,for the two-dimensional Euler problems with strong shock waves,the new scheme can significantly reduce the numerical oscillations.

关键词： Mapped WENO order-preservingmapping hyperbolic problems