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Testing Bell inequality through h→ττ at CePC

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Chinese Physics C 2024年第10期48卷 59-71页

作者： Kai Ma tong Li Faculty of Science Xi'an University of Architecture and TechnologyXi'an 710055China School of Physics Nankai UniversityTianjin 300071China

The decay of Higgs boson into two spin-1/2 particles provides an ideal system to reveal quantum entanglement and *** e^(+)e^(-) colliders can improve the measurement accuracy of the spin correlation of tau lepton pairs from Higgs boson *** show the testability of Bell inequality through h→ττ at Circular electron Positron Collider(CePC).Two realistic methods of testing Bell inequality are investigated,i.e.,Törnqvist's method and Clauser-Home-Shimony-Holt(CHSH)*** the simulation,we consider the detector effects of CePC including uncertainties for tracks and jets from Z boson in the production of e^(+)e^(-)→*** reconstruction approaches are described to measure quantum entanglement between τ^(+) and τ^(-).Finally,we show the sensitivity of CePC to Bell inequality violation for the two methods.

关键词： Bell inequality Higgs boson CePC

Investigating the effects of V2C MXene on Improving the Switching Stability and Reducing the Operation Voltages of TiO2-Based Memristors

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Chinese Journal of electronics 2024年第5期33卷 1181-1187页

作者： Nan He Lei WANG yi tong College of electronic and Optical engineering College of Flexible Electronics (Future Technology) and College of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications Gusu Laboratory of Materials

Three-atoms-ty.e V2C MXene, an emerging class of transition metal carbides, has attracted tremendous attention in the fabrication of advanced memristive devices due to its excellent electrochemical properties. However,the inserted effects and corresponding physical mechanisms of inserting V2C on traditional TiO2-based memristors have not been clearly.explored. In this work, exhaustive electrical characterizations of the V2C/TiO2-based devices exhibit enhanced performance（e.g., improved switching stability and lower operating voltages） compared to the TiO2-based counterparts. In addition, the advantaged influences of the inserted V2C have also been studied by means of first-principles calculations, confirming that V2C MXene enables controllable internal ionic process and facilitated formation mechanism of the Ag conductive filaments. This work demonstrates a way to combine experimental and theoretical investigations to reveal the positive effects of introducing V2C MXene on memristor, which is beneficial for fabricating performance-enhanced memristors.

关键词： Performance evaluation Fabrication Memristors Process control Metals Switches Stability analysis Memristor V2C MXene First-principles calculation Switching stability Formation mechanism

Therapeutic effect of Rhodopseudomonas palustris-Bioconverted extract of Lycium barbarum on Rats with Lead exposure

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Biomedical and environmental Sciences 2024年第4期37卷 440-444页

作者： yANG Hong SUN yi CHAI Shu tong LIANG yan Hui LIU ya Ni yANG Guan e School of Pharmacy Shanxi Medical UniversityTaiyuan 030001ShanxiChina

Lead is a ubiquitous pollutant and Pb pollution is a global public health *** has been reported to induce multiple adverse effects,including reproductive toxicity,neurotoxicity,carcinogenicity,nephrotoxicity,immunotoxicity,and hy.ertension[1].The traditional medical treatment available for Pb poisoning is chelation,which can save lives in individuals with very high blood Pb *** commonly used chelating agents include CaNa2eDTA and meso-2,3-dimercaptosuccinic ***,chelation therapy has strong short-term effects on the overall long-term management of Pb exposure.

关键词： converted chelation chelating

d-Orbital steered FeN_(4)moiety through N,S dual-site adjustation for zinc-air flow battery

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Journal of energy Chemistry 2024年第5期92卷 8-15页

作者： Chunzhu Bao Mingwei tong Xueli Li Zhonghua Xiang State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China

The implementation of pristine covalent organic poly.er(CO_(2)P)with well-defined structure as air electrode may spark fresh vitality to rechargeable zinc-air flow batteries(ZAFBs),but it still remains challenges in sy.ergistically regulating their electronic states and structural porosity for the great device ***,we conquer these issues by.exploiting N and S co-doped graphene with COP rich in metal-ligand nitrogen to sy.ergistically construct an effective catalyst for oxy.en reduction reaction(ORR).Among them,the N and S co-doped sites with high electronegativity properties alter the number of electron occupations in the d orbital of the iron centre and form electron-transfer bridges,thereby boosting the selectivity of the ORR-cataly.ed four-electron ***,the introduction of COP materials aids the formation of pore interstices in the graphene lamellae,which both adequately.expose the active sites and facilitate the transport of reactive *** from the sy.ergistic effect,as-prepared catalyst exhibits excellent half-wave potentials(e_(1/2)=912 mV)and stability(merely 8.8%drop after a long-term durability test of 50000 s).Further,ZAFBs assembled with the N/SG@CO_(2)P catalyst demonstrate exceptional power density(163.8 mW cm^(-2))and continuous charge and discharge for approximately 140 h at 10 mA cm^(-2),outperforming the noble-metal benchmarks.

关键词： Nitrogen/sulfurdual sites Metal-coordinated nitrogen sites Covalent organic poly.er Oxy.en reduction reaction Zn-airflow battery

Progress in manipulating spin polarization for solar hydrogen production

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Materials Reports(energy) 2024年第1期4卷 43-57页

作者： Qian yang Xin tong Zhiming Wang Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054PR China yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001PR China Institute for Advanced Study Chengdu UniversityChengdu 610106PR China

Photocatalytic and photoelectrochemical water splitting using semiconductor materials are effective approaches for converting solar energy into hydrogen *** the past few years,a series of photocatalysts/photoelectrocatalysts have been developed and optimized to achieve efficient solar hydrogen *** various optimization strategies,the regulation of spin polarization can tailor the intrinsic optoelectronic properties for retarding charge recombination and enhancing surface reactions,thus improving the solar-to-hydrogen(STH)*** review presents recent advances in the regulation of spin polarization to enhance spin polarized-dependent solar hydrogen evolution ***,spin polarization manipulation strategies of several typical photocatalysts/photoelectrocatalysts(e.g.,metallic oxides,metallic sulfides,non-metallic semiconductors,ferroelectric materials,and chiral molecules)are *** the end,the critical challenges and perspectives of spin polarization regulation towards future solar energy conversion are briefly provided.

关键词： Spin polarization Solar energy conversion Photocatalytic hydrogen production Photoelectrochemical water splitting

Photoinduced Bending and Curling Motions in Molecular Microcrystals of Naphthyl Meldrum's Acid Derivative Based on e-to-Z Photoisomerization

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CHeMICAL ReSeARCH IN CHINeSe UNIVeRSITIeS 2024年第5期40卷 907-913页

作者： Zhang, Xiaowen Xu, Tianyi Zhang, Chenchen tong, Fei east China Univ Sci & Technol Frontiers Sci Ctr Materiobiol & Dynam Chem Sch Chem & Mol Engn Key Lab Adv MatFeringa Nobel Prize Scientist Join Shanghai 200237 Peoples R China east China Univ Sci & Technol Frontiers Sci Ctr Materiobiol & Dynam Chem Sch Chem & Mol Engn Joint Int Res Lab Precis Chem & Mol EngnFeringa N Shanghai 200237 Peoples R China

Dynamic photoresponsive molecular crystals are promising candidates for making intelligent devices and materials in the future. Here, we synthesized a new photoactive molecule (e)-2,2-dimethyl-5-[3-(naphthalen-1-yl)allylide]-1,3-dioxane-4,6-dione [(e)-DNADD] that undergoes an e-to-Z photoisomerization in both liquid solution and solids when exposed to visible light (405 nm). Compared to the bulk crystals, the photoresponsive behavior in microcrystals was profoundly improved. Highly crystalline (e)-DNADD microplate crystals exhibit robust motions, including bending, curling, and coiling under light irradiation. The photoproduct conversion of the photochemical reaction in the microplate is no more than 20%, while the large bending curvature of the coiled illuminated samples was estimated at approximately 150-300 mm(-1), comparable to some photoactive nanowires. Our results indicate that shrinking crystal dimensions can boost the photoresponses in molecular crystals and provide a facile strategy for developing dynamic molecular crystals at the microscopic scale.

关键词： Photochemistry Molecular crystal e-to-Z photoisomerization Photoinduced motion DRIVeN SySTeM

elevational and temporal patterns of pollination success in distylous and homostylous buckwheats(Fagopyrum)in the Hengduan Mountains

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Plant Diversity 2024年第5期46卷 661-670页

作者： Ling-yun Wu Shuang-Quan Huang Ze-yu tong Faculty of Resources and environmental Science Hubei UniversityWuhan 430062China Institute of evolution and ecology School of Life SciencesCentral China Normal UniversityWuhan 430079China

Reproductive strategies of sexually dimorphic plants vary in response to the ***,we ask whether the sexual systems of Fagopyrum species(i.e.,selfing homostylous and out-crossing distylous)represent distinct adaptive strategies to increase reproductive success in changing alpine *** answer this question,we determined how spatial and temporal factors(e.g.,elevation and peak flowering time)affect reproductive success(i.e.,stigmatic pollen load)in nine wild Fagopyrum species(seven distylous and two homostylous)among 28 populations along an elevation gradient of 1299-3315 m in the Hengduan Mountains,southwestern *** also observed pollinators and conducted hundreds of hand pollinations to investigate inter/intra-morph compatibility,self-compatibility and pollen limitation in four Fagopyrum species(two distylous and two homostylous).We found that Fagopyrum species at higher elevation generally had bigger flowers and more stigmatic pollen loads;lateflowering individuals had smaller flowers and lower pollen *** pollen deposition was more variable in distylous species than in homostylous *** seed set was not pollenlimited in all species,we found that fruit set was much lower in distylous species,which rely on frequent pollinator visits,than in homostylous species capable of autonomous *** findings that pollination success increases at high elevations and decreases during the flowering season suggest that distylous and homostylous species have spatially and temporally distinct reproductive strategies related to environment-dependent pollinator activity.

关键词： Biodiversity hotspot elevation gradient Fagopyrum Stigmatic pollen load Temporal pattern

Chain Rule for extracting Resilience Procurement Costs from Locational Marginal Prices

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CSee Journal of Power and energy Systems 2024年第3期10卷 1342-1355页

作者： yifei Wang tong Zhu Tiancong Chen Mohammad Shahidehpour Qingshan Xu College of electrical engineering Southeast UniversityNanjing 210096China Henan Mechanical&electrical Vocational College Xinzheng 451191China Illinois Institute of Technology ChicagoIllinois 60616USA Ieee CSee

Power system resilience procurement costs in N-k contingencies have gained more prominence as number of extreme events continues to increase.A chain rule is presented in this paper for extracting resilience procurement costs from a fully decomposed locational marginal price(LMP)***,power transfer distribution factor(PTDF)matrices with AC power flow(i.e.,AC-PTDF)are ***-PTDF and AC-LODF(line outage distribution factor)equations are derived for N-k contingencies and a fully decomposed LMP model is developed where generation and transmission security components are established for specific ***,resilience procurement costs can be measured at different buses for the proposed security *** of N-k contingencies on resilience procurement costs at specific buses can be determined as proposed security components will gain more insight for resilience procurement in power *** modified Ieee 6-bus and 118-bus systems are adopted to verify.effectiveness of the proposed resilience procurement method.

关键词： Line outage distribution factors locational marginal price power system resilience power transfer distribution factor security components

Transfer matrix method for free and forced vibrations of multi-level functionally graded material stepped beams with different boundary conditions

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Applied Mathematics and Mechanics(english edition) 2024年第6期45卷 983-1000页

作者： Xiaoyang SU tong HU Wei ZHANG Houjun KANG yuny.e CONG Quan yUAN School of Civil engineering and Architecture Guangxi UniversityNanning 530004China Scientific Research Center of engineering Mechanics Guangxi UniversityNanning 530004China State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Guangxi UniversityNanning 530004China

Functionally graded materials(FGMs)are a novel class of composite materials that have attracted significant attention in the field of engineering due to their unique mechanical *** study aims to explore the dynamic behaviors of an FGM stepped beam with different boundary conditions based on an efficient solving *** the assumptions of the euler-Bernoulli beam theory,the governing differential equations of an individual FGM beam are derived with Hamilton’s principle and decoupled via the separation-of-variable ***,the free and forced vibrations of the FGM stepped beam are solved with the transfer matrix method(TMM).Two models,i.e.,a three-level FGM stepped beam and a five-level FGM stepped beam,are considered,and their natural frequencies and mode shapes are *** demonstrate the validity of the method in this paper,the simulation results by ABAQUS are also *** this basis,the detailed parametric analy.es on the frequencies and dynamic responses of the three-level FGM stepped beam are carried *** results show the accuracy and efficiency of the TMM.

关键词： transfer matrix method(TMM) free vibration forced vibration functionally graded material(FGM) stepped beam