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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第8期25卷 670-679页

作者： Han-Lin WANG Cheng-Shuang yin Qian-Yi ZHANG Qi-Wei LIU zhen-Yu yin Dong-Xing XUAN Askar KHASANOV Research Center for Advanced Underground Space Technologies of Hunan University Changsha 410082China Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education Hunan UniversityChangsha 410082China College of Civil Engineering Hunan UniversityChangsha 410082China School of Civil Engineering Zhengzhou UniversityZhengzhou 450001China Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Applied and Theoretical Mechanics Samarkand State UniversitySamarkandUzbekistan

1 Introduction Completely decomposed granite(CDG)is widely distributed in South China(Xu et al.,2022;Wang et al.,2023).The parent granite rock mass gradually loses features during the weathering process,and thus needs to be reinforced when used(Lan et al.,2003;Dassekpo et al.,2017;Alamanis et al.,2021).On the other hand,considering the huge demand for construction materials and limited natural resources,it is increasingly important to fully utilize solid waste(Gruhler et al.,2019;Anagnostopoulos et al.,2020;Jiang et al.,2022,2023a,2023b).With high strength and environment-friendly characteristics,incineration bottom ash(IBA)seems to be a suitable reinforcement material for CDG(Ahmed and Khalid,2011;Alhassan and Tankó,2012;Toraldo et al.,2013;Lynn et al.,2017;Xuan et al.,2018;Tang et al.,2020).

关键词： incineration behaviour utilize

Effects of synthetic site water on bentonite-concrete system for a potential nuclear waste repository

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第9期16卷 3786-3797页

作者： Zhao Sun Yong-Gui Chen Wei-Min Ye Qiong Wang Dong-Bei Wu zhen-Yu yin Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Department of Geotechnical EngineeringTongji UniversityShanghai200092China Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina School of Chemical Science and Engineering Tongji UniversityShanghai200092China

In high-level nuclear waste(HLW)repositories,concrete and compacted bentonite are designed to be employed as buffer materials,which may raise a problem of interactions between concrete and *** interactions would lead to mineralogy transformation and buffer performance decay of bentonite under the near field environment conditions in a repository.A small-scale experimental setup was established to simulate the concrete-bentonite-site water interaction system from a potential nuclear waste repository in *** types of mortars were prepared to correspond to the concrete at different degradation *** results permit the determination of the following:(1)The macroproperties of Gaomiaozi(GMZ)bentonite(*** pressure,permeability,the final dry density,and water content of reacted samples);(2)The composition evolution of fluids from the synthetic site water-concrete-bentonite interaction systems;(3)The sample characterization including Fourier transform infrared spectroscopy(FTIR)and X-ray powder diffraction(XRD).Under the infiltration of the synthesis Beishan site water(BSW),the swelling pressure of bentonite decreases slowly with time after reaching its second swelling *** flux decreases with time during the infiltrations,and it tends to be stable after more than 120 *** to the cation exchange reactions in the BSW-concrete-bentonite systems,the divalent cations(Ca and Mg)were consumed,and the monovalent cations(Na and K)were *** dissolution of minerals in the bentonite such as albite causes Si increasing in the pore *** was concluded that the hydro-mechanical property degradation of bentonite takes place when it comes into contact with concrete mortar,even under low-pH groundwater *** soil dispersion,the uneven water content,and the uneven dry density in bentonite samples may partly contribute to the swelling decay of ***,the direct contact with concrete has an obvious effect on the performance

关键词： Mock-up device GMZ bentonite Site water-concrete-bentonite system Geochemistry Buffer performance

Quantum key distribution over a mimicked dynamic-scattering channel

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Science China(Information Sciences) 2024年第4期67卷 323-330页

作者： Qi-Hang LU Fang-Xiang WANG Wei CHEN Hai-Yang FU yin-Jie LU Shuang WANG De-Yong HE zhen-Qiang yin Guang-Can GUO zheng-Fu HAN CAS Key Laboratory of Quantum Information University of Science and Technology of China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of China Hefei National Laboratory University of Science and Technology of China

Free-space quantum key distribution(QKD) plays an important role in the global quantum network. However, free space channels suffer from the atmospheric turbulence and scattering effects of haze,fog, and dust, which significantly weaken the performance of QKD or even block the secure quantum ***, we prove the performance of QKD over a dynamic scattering channel can be enhanced significantly using a fast wavefront shaping technique. The system achieves on average 10-dB enhancement of quantum transmission efficiency and establishes a secure quantum link for QKD. Our work demonstrates the feasibility of QKD through free-space dynamic scattering channels and enhances the deployment capability of complex-channel QKD system.

关键词： quantum key distribution free space channel channel turbulence channel scattering wavefront shaping

Interface engineering of 2D NiFe LDH/NiFeS heterostructure for highly efficient 5-hydroxymethylfurfural electrooxidation

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Chinese Chemical Letters 2024年第9期35卷 514-520页

作者： Lili Wang Ya Yan Rulin Li Xujie Han Jiahui Li Ting Ran Jialu Li Baichuan Xiong Xiaorong Song Zhaohui yin Hong Wang Qingjun Zhu Bowen Cheng zhen yin State Key Laboratory of Separation Membranes and Membrane Processes School of ChemistryTiangong UniversityTianjin 300387China School of Chemical Engineering and Technology Tiangong UniversityTianjin 300387China College of Chemical Engineering and Materials Science Tianjin University of Science and TechnologyTianjin 300457China State Key Laboratory of Biobased Fiber Manufacturing Technology Tianjin University of Science and TechnologyTianjin 300457China School of Materials Science and Engineering Tiangong UniversityTianjin 300387China Deutsches Elektronen-Synchrotron DESY Platanenallee 6Zeuthen 15738Germany Department of Chemistry and The Center for the Science of Materials Berlin Humboldt-Universitäzu BerlinBerlin 12489Germany

The electrochemical oxidation of 5-hydroxymethylfurfural(HMF)to valuable chemicals is an efficient way to upgrade biomass molecules and replace traditional catalytic *** is crucial to develop efficient and low-cost earth-abundant electrocatalysts to enhance catalytic performance of HMF ***,a new type of two-dimensional(2D)hybrid arrays consisting of Ni Fe layered double hydroxides(LDH)nanosheets and bimetallic sulfide(Ni Fe S)is constructed via interface engineering for efficient electrocatalytic oxidation of HMF to 2,5-furandicarboxylic acid(FDCA).The preparation process of 2D Ni Fe LDH/NiFeS with ultrathin heterostructure involves in anchoring a Co-based metal-organic framework(Co MOF)as template onto the carbon cloth(CC)via in-situ growth,formation of NiFe LDH on the surface of Co MOF and subsequent partial *** electrocatalyst of Ni Fe LDH/Ni Fe S exhibits outstanding performance towards HMF oxidation,about 98.5%yield for FDCA and 97.2%Faraday efficiency(FE)in the alkaline electrolyte with 10 mmol/L HMF,as well as excellent stability retaining 90.1%FE for FDCA after six cycles ***,even at an HMF concentration of 100 mmol/L,the yield and FE for FDCA remain high at 83.6%and 93.6%,*** findings highlight that 2D heterostructure containing abundant interfaces between Ni Fe LDH nanosheets and Ni Fe S can enhance the intrinsic activity of LDH and thus promote the oxidation reaction ***,the synergistic effect of the bimetallic Ni Fe compounds also improved the selectivity of HMF conversion to *** present work demonstrates that constructing 2D ultrathin heterostructure of Ni Fe LDH/Ni Fe S is a facile strategy via interface engineering to enhance the intrinsic activity of LDH electrocatalysts,which would open new avenues toward low-cost and advanced 2D nanocatalysts for sustainable energy conversion and electrochemical valorization of biomass derivatives.

关键词： Electrocatalytic oxidation Interface engineering 2D ultrathin heterostructure Layered double hydroxides 5-Hydroxymethylfurfural

Photocatalytic seawater splitting by 2D heterostructure of ZnIn_(2)S_(4)/WO_(3) decorated with plasmonic Au for hydrogen evolution under visible light

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Journal of Energy Chemistry 2024年第6期93卷 55-63,I0003页

作者： Huiqin An Yanjun Wang Xing Xiao Jiaxin Liu Zhiyao Ma Tianxin Gao Wanyu Hong Lizhi Zhao Hong Wang Qingjun Zhu Shanshan Chen zhen yin School of Chemistry Tiangong UniversityTianjin 300387China School of Materials Science and Engineering Tiangong UniversityTianjin 300387China Deutsches Elektronen-Synchrotron DESY 15738 ZeuthenGermany Schoolof Materials Science and Engineering & National Institutefor Advanced Materials Nankai University Tianjin300350 China College of Chemical Engineering and Materials Science Tianjin University of Science and TechnologyTianjin 300457China

Photocatalytic H_(2) evolution from seawater splitting presents a promising approach to tackle the fossil energy crisis and mitigate carbon emission due to the abundant source of seawater and sunlight on the ***,the development of efficient photocatalysts for seawater splitting remains a formidable ***,a 2D/2D ZnIn_(2)S_(4)/WO_(3)(ZIS/WO_(3))heterojunction nanostructure is fabricated to efficiently separate the photoinduced carriers by steering electron transfer from the conduction band minimum of WO_(3) to the valence band maximum of ZIS via constructing internal electric ***,plasmonic Au nanoparticles(NPs)as a novel photosensitizer and a reduction cocatalyst are anchored on ZIS/WO_(3) surface to further enhance the optical absorption of ZIS/WO_(3) heterojunction and accelerate the catalytic *** obtained Au/ZIS/WO_(3) photocatalyst exhibits an outstanding H_(2) evolution rate of 2610.6 or 3566.3μmol g^(-1)h~(-1)from seawater splitting under visible or full-spectrum light irradiation,*** rates represent an impressive increase of approximately 7.3-and 6,6-fold compared to those of ZIS under the illumination of the same light *** unique 2D/2D structure,internal electric field,and plasmonic metal modification together boost the photocatalytic H_(2) evolution rate of Au/ZIS/WO_(3),making it even comparable to H_(2) evolution from pure water *** present work sheds light on the development of efficient photocatalysts for seawater splitting.

关键词： Photocatalytic seawater splitting 2D/2D ZnIn_(2)S_(4)/WO_(3) Surface plasmon resonance effect Interfacial electric field

Security of quantum key distribution with virtual mutually unbiased bases

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 13-21页

作者： Hong-Wei Li Chen-Peng Hao Zhi-Jiang Chen Li Gong Yi-Fei Lu Yang Wang Jia-Ji Li Chun-Mei Zhang Rong Wang zhen-Qiang yin Qing-Yu Cai Henan Key Laboratory of Quantum Information and Cryptography SSF IEUZhengzhou 450000China Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China Department of Physics University of Hong KongHong Kong 999077China Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China School of Information and Communication Engineering Hainan UniversityHaikou 570228China

In a perfect quantum key distribution(QKD)protocol,quantum states should be prepared and measured with mutually unbiased bases(MUBs).However,in a practical QKD system,quantum states are generally prepared and measured with imperfect MUBs using imperfect devices,possibly reducing the secret key rate and transmission *** analyze the security of a QKD system with imperfect MUBs,we propose virtual MUBs to characterize the quantum channel against collective attack,and analyze the corresponding secret key rate under imperfect state preparation and measurement *** generally,we apply the advantage distillation method for analyzing the security of QKD with imperfect MUBs,where the error tolerance and transmission distance can be sharply *** analysis method can be applied to benchmark and standardize a practical QKD system,elucidating the security analysis of different QKD protocols with imperfect devices.

关键词： quantum key distribution mutually unbiased bases advantage distillation

Innovative coaxial high-temperature thin-film sensor with core-shell structure surpassing traditional multilayer films

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Rare Metals 2024年第8期43卷 3854-3867页

作者： Chao Wu Guo-Chun Chen Fu-Xin Zhao Fan Lin ying-Jun Zeng Yan-Zhang Fu Yan-Song Zhang Li-Da Xu Qin-Nan Chen Rui Tang Dao-Heng Sun zhen-yin Hai Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen UniversityXiamen 361005China AECC Shenyang Engine Institute Shenyang 110015China School of Aerospace Engineering Xiamen UniversityXiamen 361005China

High-temperature thin-film sensors(TFSs)often suffer from inadequate tolerance to elevated *** this study,an innovative approach is presented to fabricate in situ integrated TFSs with a core-shell structure on alloy components using coaxial multi-ink printing *** method replaces traditional layerby-layer(LbL) deposition and LbL sintering processes and achieves simplified one-step *** coaxial TFS includes a conductive Pt core for conducting and sensing and a dielectric shell for electrical isolation and high-temperature *** coaxial Pt resistance grid demonstrates excellent high-temperature stability,with a resistance drift rate of only 0.08%·h^(-1) at 800 ℃,significantly lower than traditional Pt *** employing this method,a Pt thin-film strain gauge(TFSG) is fabricated that boasts remarkable high-temperature electromechanical *** effectively addresses the problem of sensitivity degradation experienced by traditional LbL Pt TFSGs when subjected to high *** demonstrate the system integration potential of the technique by printing and verifying the functionality of a long-path thinfilm resistance grid on turbine blades,which can withstand butane flame up to ~1300℃.These results showcase the potential of core-shell structure of the coaxial TFS for high-temperature applications,providing a novel approach to develop high-performance TFS beyond traditional multilayer structure.

关键词： Coaxial printing Core-shell structure Thinfilm strain gauge High-temperature stability

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种业企业成本核算的特殊性分析与解决途径

分子植物育种 2024年第5期22卷 1707-1711页

作者：尹珍山西财贸职业技术学院太原030031

种业企业因其特殊的产业属性和经营特点,在成本核算方面呈现出独特的问题和挑战。本研究详细探讨了种业企业成本核算的特殊性,主要从生物技术研发成本的核算、生物资产的价值衡量、环境保护成本的计算以及市场因素的影响等方面进行分析... 详细信息

种业企业因其特殊的产业属性和经营特点,在成本核算方面呈现出独特的问题和挑战。本研究详细探讨了种业企业成本核算的特殊性,主要从生物技术研发成本的核算、生物资产的价值衡量、环境保护成本的计算以及市场因素的影响等方面进行分析。研究指出,传统的成本核算方法和流程在种业企业中可能并不完全适用,需要结合种业的特点进行适当的调整和完善。为解决这些核算问题,本研究提出了一系列解决途径,如加强法律法规与会计准则的完善、提高会计核算人员的专业素质、引入先进的信息技术等。本研究期望为种业企业提供有关成本核算的理论支持和实践建议,助力企业更加精准、高效地进行经营管理。

关键词：种业企业成本核算特殊性分析解决途径经营管理

以金融体制改革推进中国式现代化:内在逻辑、核心要求与推进重点

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财经问题研究 2024年第10期 3-13页

作者：尹振涛中国社会科学院金融研究所北京100710 中国社会科学院大学应用经济学院北京102488

金融在中国式现代化进程中一直扮演着至关重要的角色,已成为国家经济发展不可或缺的核心竞争力,在促进经济增长、稳定就业市场、助力经济转型等方面发挥了极其重要的作用。随着经济的发展,推进金融体制改革以适应并促进金融高质量发展... 详细信息

金融在中国式现代化进程中一直扮演着至关重要的角色,已成为国家经济发展不可或缺的核心竞争力,在促进经济增长、稳定就业市场、助力经济转型等方面发挥了极其重要的作用。随着经济的发展,推进金融体制改革以适应并促进金融高质量发展显得尤为必要且紧迫。深化金融体制改革不仅是推动金融与中国式现代化同步发展的必然要求,也是突破制约金融高质量发展的体制机制障碍的关键举措。在中国式现代化背景下,深化金融体制改革的推进重点是:坚持党中央集中统一领导、完善现代中央银行制度、打造有效金融监管体系、做好金融“五篇大文章”、促进资本市场投融资功能相协调、推进金融高水平对外开放。通过不断深化金融体制改革,将金融高质量发展推向新的高度,从而为构建高水平社会主义市场经济体制和服务于中国式现代化提供强有力的金融保障和充沛的动力来源。

关键词：金融体制改革中国式现代化金融强国金融稳定

各向异性砂土渗流潜蚀流体动力学-离散元流固耦合分析

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岩土力学 2024年第1期45卷 302-312页

作者：周闯钱建固尹振宇同济大学地下建筑与工程系上海200092 同济大学岩土及地下工程教育部重点实验室上海200092 香港理工大学土木与环境系中国香港

针对具有初始各向异性的间断级配砂土细粒潜蚀问题,引入可以考虑颗粒投影面积影响的Ganser拖曳力计算模型,实现非球形颗粒的计算流体动力学(computational fluid dynamics,简称CFD)和离散元(discrete element method,简称DEM)的双相耦... 详细信息

针对具有初始各向异性的间断级配砂土细粒潜蚀问题,引入可以考虑颗粒投影面积影响的Ganser拖曳力计算模型,实现非球形颗粒的计算流体动力学(computational fluid dynamics,简称CFD)和离散元(discrete element method,简称DEM)的双相耦合。通过与单颗粒下沉试验的对比,验证了该数值方法在解决异形颗粒与流体相互作用时的适用性。在此基础上,生成具有不同沉积方向和不同细粒含量的初始各向异性试样,模拟向上渗流潜蚀试验,并在试验中监测细粒流失量、强弱力链组成以及颗粒组构变化等宏微观特性,研究不同充填状态下(欠填充和过填充)不同组构各向异性土体渗流潜蚀特征。之后,对受潜蚀前后的试样进行了排水三轴试验,探究渗流对土体强度弱化的影响。结果表明,过填充试样质量损失随着颗粒沉积角度的增大而增大,而欠填充试样质量损失随沉积角度先增大后减小;欠填充试样细粒损失主要来源于低连通性细颗粒,而对于过填充试样,潜蚀则会导致低连通性和高连通性细颗粒数量同时减小。此外,三轴试验表明,潜蚀致土体峰值强度发生显著弱化,且峰值强度随沉积角度的变化也会受到土体充填状态的影响。

关键词： CFD-DEM 渗流潜蚀异形颗粒拖曳力模型各向异性微观组构