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国际医学放射学杂志 2023年第6期 747-748页

作者： Y.Q.Fan Q.Q.Cai S.h.Chen B.Zhang Y.X.Zhang j.h.zhen 王倩

摘要目的现行的关于二甲双胍与对比剂同时使用的各指南规定间存在较大差异。该研究旨在评价这些指南，并总结各指南推荐规范之间的异同点。方法重点检索2018—

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The P_(5)-saturation Game

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Acta Mathematicae Applicatae Sinica 2025年第1期41卷 295-304页

作者： zhen hE Mei LU School of Mathematics and Statistics Beijing Jiaotong UniversityBeijing 100044China Department of Mathematical Sciences Tsinghua UniversityBeijing 100084China

Let F,G and h be three graphs with G■*** call G an F-saturated graph relative to h,if there is no copy of F in G but there is a copy of F in G+e for any e∈E(h)\E(G).The F-saturation game on host graph h consists of two players,named Max and Min,who alternately add edges of h to G such that each chosen edge avoids creating a copy of F in G,and the players continue to choose edges until G becomes F-saturated relative to *** wishes to maximize the length of the game,while Min wishes to minimize the *** sat_(g)(F,h)(***_(g)'(F,h))denote the number of edges chosen when Max(*** Min)starts the game and both players play *** this article,we show that sat_(g)(P_(5),K_(n))=sat_(g)'(P_(5),K_(n))=n+2 for n≥15,and satg(P_(5),K_(m,n)),sat_(g)'(P_(5),K_(m,n))lie in{m+n-[m+2/4];m+n-[m-3/4]}if n≥5/2m and m≥4,respectively.

关键词： saturation number saturation game host graph

A fast amplitude preserving three-parameter 3D parabolic Radon transform and its application on multiple attenuation

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Petroleum Science 2025年第1期22卷 163-177页

作者： ji-Tao Ma Kai-Ge Zhao zhen Liao College of Geophysics China University of Petroleum (Beijing) State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) CNPC Key Laboratory of Geophysical Prospecting China University of Petroleum (Beijing)

Seismic wavefields propagate through three-dimensional(3D) space, and their precise characterization is crucial for understanding subsurface structures. Traditional 2D algorithms, due to their limitations, are insufficient to fully represent three-dimensional wavefields. The classic 3D Radon transform algorithm assumes that the wavefield's propagation characteristics are consistent in all directions, which often does not hold true in complex underground media. To address this issue, we present an improved 3D threeparameter Radon algorithm that considers the wavefield variation with azimuth and provides a more accurate wavefield description. however, introducing new parameters to describe the azimuthal variation also poses computational challenges. The new Radon transform operator involves five variables and cannot be simply decomposed into small matrices for efficient computation; instead, it requires large matrix multiplication and inversion operations, significantly increasing the computational load. To overcome this challenge, we have integrated the curvature and frequency parameters, simplifying all frequency operators to the same, thereby significantly improving computation efficiency. Furthermore,existing transform algorithms neglect the lateral variation of seismic amplitudes, leading to discrepancies between the estimated multiples and those in the data. To enhance the amplitude preservation of the algorithm, we employ orthogonal polynomial fitting to capture the amplitude spatial variation in 3D seismic data. Combining these improvements, we propose a fast, amplitude-preserving, 3D threeparameter Radon transform algorithm. This algorithm not only enhances computational efficiency while maintaining the original wavefield characteristics, but also improves the representation of seismic data by increasing amplitude fidelity. We validated the algorithm in multiple attenuation using both synthetic and real seismic data. The results demonstrate that the new algor

关键词： Three-parameter 3D Radon Orthogonal polynomial Amplitude-preserving Multiple attenuation

Exit options sustain altruistic punishment and decrease the second-order free-riders, but it is not a panacea

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Science China(Information Sciences) 2025年第1期68卷 278-291页

作者： Chen ShEN Zhao SONG Lei ShI jun TANIMOTO zhen WANG Faculty of Engineering Sciences Kyushu University School of Statistics and Mathematics Yunnan University of Finance and Economics School of Computing Engineering and Digital Technologies Teesside University School of Artificial Intelligence OPtics and Electro Nics (iOPEN) Northwestern Polytechnical University

Why do humans punish free riders at their own expense? This behavior represents an evolutionary puzzle in human societies. This study explores the role of exit strategies in fostering altruistic punishment within evolutionary game theory. We extend the traditional prisoner's dilemma model by incorporating exiters, players who opt out for a small payoff while nullifying their opponent's payoff, and altruistic punishers who cooperate and punish non-cooperators. Our findings indicate that in well-mixed populations, exiters destabilize defection but do not promote altruistic punishment. In social networks, however,exiters enable altruistic punishment via cyclic dominance among altruistic punishers, defectors, and exiters. Notably, this cyclic dominance is sensitive to exit payoffs; adjustments can lead to cyclic dominance of non-punishing cooperators, defectors, and exiters, or to a bi-stable state between these two types of cyclic dominance. These results highlight the nuanced impact of exiters on altruistic punishment, emphasizing the need for careful incentivization of exit behavior. While exiters can support altruistic punishment in networked populations, their effectiveness is not a panacea and is highly sensitive to exit payoffs, indicating limits to the voluntary participation mechanism.

关键词： evolutionary game theory altruistic punishment coexistence cyclic dominance bi-stable

Compound heterozygous mutation of AFG3L2 causes autosomal recessive spinocerebellar ataxia through mitochondrial impairment and MICU1 mediated Ca2+overload

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Science China(Life Sciences) 2025年第2期68卷 484-501页

作者： hongyu Li Qingwen Ma Yan Xue Linlin Cai Liwen Bao Lei hong Yitao Zeng Shu-zhen huang Richard h.Finnell Fanyi Zeng Shanghai Institute of Medical Genetics Shanghai Children’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200040China Department of histo-Embryology Genetics and Developmental BiologyShanghai Jiao Tong University School of MedicineShanghai 200025China NhC Key Laboratory of Medical Embryogenesis and Developmental Molecular Biology Shanghai Key Laboratory of Embryo and Reproduction EngineeringShanghai 200040China Center for Precision Environmental health Baylor College of MedicineHouston 77030USA School of Pharmacy Macao University of Science and TechnologyMacao 999078China

Autosomal recessive spinocerebellar ataxias(SCARs)are one of the most common neurodegenerative diseases characterized by progressive *** SCARs are known to be caused by mutations in multiple genes,there are still many cases that go undiagnosed or are *** this study,we presented a SCAR patient,and identified a probable novel pathogenic mutation(c.1A>G,p.M1V)in the AFG3L2 start *** proband's genotype included heterozygous mutations of the compound AFG3L2(p.[M1V];[R632X](c.[1A>G];[1894.C>T])),which were inherited from the father(c.1A>G,p.M1V)and mother(c.1894C>T,p.R632X).Functional studies performed on hi PSCs(human induced pluripotent stem cells)generated from the patients and hEK293T cells showed that the mutations impair mitochondrial function and the unbalanced expression of AFG3L2 mRNA and protein ***,this novel mutation resulted in the degradation of the protein and the reduction of the stability of the AFG3L2 protein,and MCU(mitochondrial calcium uniporter)complex mediated Ca2+overload.

关键词： AFG3L2 gene autosomal recessive spinocerebellar ataxia mitochondrial impairment Ca2+overload

An improved method to evaluate trap depth from thermoluminescence

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journal of Rare Earths 2025年第2期43卷 262-269页

作者： Shiyou Zhang Fangyi Zhao Shengqiang Liu zhen Song Quanlin Liu The Beijing Municipal Key Laboratory of New Energy Materials and Technologies School of Materials Science and EngineeringUniversity of Science and Technology Beijing

Rare earth-doped inorganic compounds contribute mostly to the family of persistent luminescent materials due to the versatile energy levels of rare earth *** of the key research aims is to match the trap level stemming from the doped rare earth ion or intrinsic defects to the electronic structure of the host,and therefore thermoluminescence measurement becomes a radical technology in studying trap depth,which is one of the significant parameters that determine the properties of persistent luminescence and photostimulated ***,the results of trap depth obtained by different thermoluminescence methods are quite different so that they are not ***,we analyzed different thermoluminescence methods,selected and improved the traditional peak position method of Tm/500 to be E=（-0.94Inβ+30.09）*** the experimental heating rate（β） is needed additionally,but the accuracy is improved greatly in most *** convenient and accurate method will accelerate the discovery of novel rare earth-doped materials.

关键词： Persistent luminescence Photostimulated luminescence Rare earths Thermoluminescence Trap depth

Mo_(2)C Nanoparticles Supported on N,P Co-doped Carbon by Molten Salts Strategy for Efficient Electrocatalyst Towards hydrogen Evolution Reaction

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Chemical Research in Chinese Universities 2025年第1期41卷 101-105页

作者： BI Xinyue ZhANG Wenting TANG Duihai XIN Shigang ZhAO zhen Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang110034P.R.China Experimental Center Shenyang Normal UniversityShenyang110034P.R.China

In view of recent environmental concerns,electrochemical water splitting for hydrogen(h2)as one of the important reactions has getting more and more attention in these ***,we synthesized a series of Mo,N,and P co-doped carbons as efficient electrocatalysts to replace the expensive platinum-based *** the final products,the combination of Mo_(2)C nanoparticles(NPs)and N,P co-doped carbons were fabricated using a simple molten salt *** notably,KCl as the template could be recycled and reused via water *** ratios of the precursors could affect the structure of the final production,and therefore further determine the performance of electrocatalytic towards hydrogen evolution reaction(hER).Owing to extensive supplies of active sites and heterogeneous structures that provide transfer channels for electrons,the optimal sample of GUPMo-2.00KCl exhibited the best hER activity among the as-synthesized samples,including low overpotentials,small Tafel slope,and good *** work opens up a novel prospect for the designing of high-performance electrocatalysts.

关键词： Composite material Molten salt hydrogen evolving reaction Carbon Mo_(2)C nanoparticle

Experimental and numerical simulation of the attenuation effect of blast shock waves in tunnels at different altitudes

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Defence Technology(防务技术) 2025年第1期43卷 120-141页

作者： Changjiang Liu hujun Li zhen Wang Yong he Guokai Zhang Mingyang Wang School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing 210094China State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact People's Liberation Army Engineering UniversityNanjing 210014China

Traffic engineering such as tunnels in various altitudinal gradient zone are at risk of accidental explosion,which can damage personnel and *** prediction of the distribution pattern of explosive loads and shock wave propagation process in semi-enclosed structures at various altitude environment is key research focus in the fields of explosion shock and fluid *** effect of altitude on the propagation of shock waves in tunnels was investigated by conducting explosion test and numerical *** on the experimental and numerical simulation results,a prediction model for the attenuation of the peak overpressure of tunnel shock waves at different altitudes was *** results showed that the peak overpressure decreased at the same measurement points in the tunnel entrance under the high altitude *** contrast,an increase in altitude accelerated the propagation speed of the shock wave in the *** average error between the peak shock wave overpressure obtained using the overpressure prediction formula and the measured test data was less than15%,the average error between the propagation velocity of shock waves predicted values and the test data is less than 10%.The method can effectively predict the overpressure attenuation of blast wave in tunnel at various altitudes.

关键词： Shock wave propagation Tunnel Altitude effect Peak overpressure Shock waves velocity Engineering safety

In situ regeneration of catalyst for Fenton-like degradation by photogenerated electron transportation:Characterization,performance and mechanism comparison

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Chinese Chemical Letters 2025年第1期36卷 529-533页

作者： Ming-zhen Li Yang Zhang Kun Li Ya-Nan Shang Yi-zhen Zhang Yu-jiao Kan Zhi-Yang jiao Yu-Yuan han Xiao-Qiang Cao College of Safety and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education of ChinaBeijing Normal UniversityBeijing 100875China Environment Research Institute Shandong UniversityQingdao 266237China Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity Shandong University of Science and TechnologyQingdao 266590China

Inactivation of carbon-based transition metal catalysts,which was caused by electron loss,limited their application in advanced oxidation ***,Co and TiO_(2) double-loaded carbon nanofiber material(Co@CNFs-TiO_(2))was synthesized in this *** and chemical catalytic systems were synergized *** was eliminated within 15 *** degradation rate remained above 90%after five cycles,and the 50%promotion proved the high stability of Co@CNFs-TiO_(2).The main reactive oxygen species in this system were sulfate radicals,whereas Co and TiO_(2) represented the active sites of the catalytic *** generated from TiO_(2) during the photocatalytic process were transferred to Co,which promoted the Co(Ⅲ)/Co(Ⅱ)cycle and maintained Co in a low-valence state,thereby stimulating the generation of sulfate *** this study,the effective regulation of reactive oxygen species in the reaction system was *** results provided a guidance for in situ electron replenishment and regeneration of carbon-based transition metal catalysts,which will expand the practical application of advanced oxidation processes.

关键词： Electron transportation Catalyst regeneration Peroxymonosulfate Co Photocatalytic

Robust free-base and metalated corrole radicals with reduction-induced emission

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Chinese Chemical Letters 2025年第2期36卷 426-431页

作者： Pengfei Li Chulin Qu Fan Wu hu Gao Chengyan Zhao Yue Zhao zhen Shen State Key Laboratory of Coordination Chemistry Collaborative Innovation Center of Advanced MicrostructuresSchool of Chemistry and Chemical EngineeringNanjing University School of Chemistry and Materials Science Nanjing Normal University College of Materials Science and Engineering Nanjing Forestry University

Preparing free-base porphyrinoid radicals that can function as coordination ligands is a challenging task. here we report the synthesis of a stable, free-base benzocorrole(BC) radical containing only two inner Nh protons via a retro-Diels-Alder conversion. The radical character of BC was fully supported by crystallographic analysis, spectroscopic evidence, and theoretical calculations. This neutral radical ligand allowed easy insertion of Zn(Ⅱ), Ga(Ⅲ), and Pd(Ⅱ) ions to produce radical complexes. All these radicals exhibited luminescence-on responses under weak reducing atmosphere, corresponding to the conversion to their aromatic anions. The red fluorescence was observed for BC and its Zn(Ⅱ) and Ga(Ⅲ) complexes,and the near-infrared phosphorescence(>900 nm) was detected for Pd(Ⅱ) complex at room ***, Ga(Ⅲ) corrole exhibited a variation in fluorescence in response to axial coordination. Our findings provide a promising radical platform for coordination and developing novel functional materials with switchable spin and emission.

关键词： Luminescence Macrocyclic ligands Porphyrinoids Radicals Redox chemistry