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Nano Research 2025年第1期18卷 10-20页

作者： Zongsheng Chen yahui wang Yi Liu Zhigang Li Xiangyin Lv Liping Liu Yajing Chang Jiaming Shi Xiao Zhang State Key Laboratory of Pulsed Power Laser Technology School of Electronic EngineeringNational University of Defense TechnologyHefei 230037China Anhui Provincial Laboratory of Advanced Laser Technology School of Electronic EngineeringNational University of Defense TechnologyHefei 230037China Centre for Environmental and Energy Nanomaterials Anhui Key Laboratory of Nanomaterials and NanotechnologyCAS Centre for Excellence in NanoscienceInstitute of Solid State PhysicsHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China

Hierarchical hollow structure has demonstrated potential for enhancing electromagnetic(EM)attenuation and improving impedance matching,garnering significant attention for ***,we have successfully implemented compositional and structural engineering to fabricate hollow Mo2C/C microspheres with controllable composition by coupling interaction between dopamine hydrochloride and ammonium *** the synergistic effect of composition and hollow structure,the strongest reflection loss intensity and broadest effective absorption of the optimized sample reach-70.2 dB and 6.2 GHz,*** formation of hollow heterogeneous structures not only favors impedance matching feature,but also generates considerable contribution to EM attenuation ***,radar cross-section simulation data indicate that hollow Mo2C/C microspheres with compositional optimization and heterogeneous structures have broad prospects for practical applications.

关键词： electromagnetic absorption Mo2C/C microwave absorption hollow structure

Quantum Polynomial-Time Fixed-Point Attack for RSA

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China Communications 2018年第2期15卷 25-32页

作者： yahui wang Huanguo Zhang Houzhen wang School of computer Wuhan University Key Laboratory of Aerospace Information security and trusted computing Ministry of Education Wuhan University

Security analysis of public-key cryptosystems is of fundamental significance for both theoretical research and applications in cryptography. In particular, the security of widely used public-key cryptosystems merits deep research to protect against new types of attacks. It is therefore highly meaningful to research cryptanalysis in the quantum computing environment. Shor proposed a wellknown factoring algorithm by finding the prime factors of a number n =pq, which is exponentially faster than the best known classical algorithm. The idea behind Shor's quantum factoring algorithm is a straightforward programming consequence of the following proposition: to factor n, it suffices to find the order r; once such an r is found, one can compute gcd( a^(r/2) ±1, n)=p or q. For odd values of r it is assumed that the factors of n cannot be found(since a^(r/2) is not generally an integer). That is, the order r must be even. This restriction can be removed, however, by working from another angle. Based on the quantum inverse Fourier transform and phase estimation, this paper presents a new polynomial-time quantum algorithm for breaking RSA, without explicitly factoring the modulus n. The probability of success of the new algorithm is greater than 4φ( r)/π~2 r, exceeding that of the existing quantum algorithm forattacking RSA based on factorization. In constrast to the existing quantum algorithm for attacking RSA, the order r of the fixed point C for RSA does not need to be even. It changed the practices that cryptanalysts try to recover the private-key, directly from recovering the plaintext M to start, a ciphertext-only attack attacking RSA is proposed.

关键词： information security cryptogra-phy RSA fixed-point quantum computing

Current status and future prospects of stomatology research

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第10期24卷 853-867,I0001页

作者： Qianming CHEN yahui wang Jing SHUAI Stomatology Hospital School of StomatologyZhejiang University School of MedicineClinical Research Center for Oral Diseases of Zhejiang ProvinceKey Laboratory of Oral Biomedical Research of Zhejiang ProvinceCancer Center of Zhejiang UniversityHangzhou 310006China

Research in stomatology(dental medicine)continues to expand globally and is oriented towards solving clinical issues,focusing on clarifying the clinical relevance and potential mechanisms of oral–systemic connections via clinical epidemiology,oral microecological characterization,and the establishment of animal *** integration of materials science and tissue engineering with stomatology is expected to lead to the creation of innovative materials and technologies to better resolve the most prevalent and challenging clinical issues such as peri-implantitis,soft and hard tissue defects,and dentin *** the rapid development of artificial intelligence(AI),5th generation mobile communication technology(5G),and big data applications,“intelligent stomatology”is emerging to build models for better clinical diagnosis and management,accelerate the reform of education,and support the growth and advancement of scientific ***,we summarized the current research status,and listed the future prospects and limitations of these three aspects,aiming to provide a basis for more accurate etiological exploration,novel treatment methods,and abundant big data analysis in stomatology to promote the translation of research achievements into practical applications for both clinicians and the public.

关键词： Stomatology Dental medicine Systemic disease Material Innovative technique

Quantum Algorithm for Attacking RSA Based on Fourier Transform and Fixed-Point

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Wuhan University Journal of Natural Sciences 2021年第6期26卷 489-494页

作者： wang yahui ZHANG Huanguo School of Computer and Information Technology Xinyang Normal UniversityXinyang 464000HubeiChina School of Cyber Science and Engineering Wuhan UniversityWuhan 430072HubeiChina

Shor in 1994 proposed a quantum polynomial-time algorithm for finding the order r of an element a in the multiplicative group Z_(n)^(*),which can be used to factor the integer n by computing gcd(a^(r/2)±1,n),and hence break the famous RSA ***,the order r must be *** restriction can be *** in this paper,we propose a quantum polynomial-time fixed-point attack for directly recovering the RSA plaintext M from the ciphertext C,without explicitly factoring the modulus *** to Shor’s algorithm,the order r of the fixed-point C for RSA(e,n)satisfying C^(er)≡C(mod n)does not need to be ***,the success probability of the new algorithm is at least 4φ(r)/π^(2)r and higher than that of Shor’s algorithm,though the time complexity for both algorithms is about the same.

关键词： information security cryptology RSA fixed-point quantum computing

Speed selection of traveling waves to an epidemic model

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International Journal of Biomathematics 2023年第4期16卷 155-173页

作者： yahui wang Xinjian wang Guo Lin School of Mathematics and Statistics Lanzhou University LanzhouGansu 730000P.R.China

This paper is devoted to investigating the selection mechanism of the minimal wave speed for traveling waves to an epidemic *** determinacy of linear and nonlinear selections is further discussed by the upper-lower solutions and comparison principle.A threshold is defined by the eigenvalue problem of the linearized *** show that the nonlinear determinacy is obtained as long as there exists a lower solution with a faster decay and a speed parameter that is larger than the *** the speed parameter equals to the threshold,if there exists an upper solution satisfying proper limit behavior,then the linear selection is *** a special function of infection rate,we obtain a threshold parameter that determines the linear and nonlinear selections.

关键词： Cooperative system minimal wave speed linear determinacy nonlinear selection comparison principle

Influence of solvent on ion conductivity of polybenzimidazole proton exchange membranes for vanadium redox flow batteries

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Chinese Journal of Chemical Engineering 2020年第6期28卷 1701-1708页

作者： yahui wang Kaimin Feng Liming Ding Lihua wang Xutong Han Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190China School of Materials Science and Engineering Tianjin Polytechnic UniversityTianjin 300387China School of Chemistry and Chemical Engineering Beijing Institute of TechnologyBeijing 100081PR China

Polybenzimidazole(PBI)is a kind of proton transport membrane material,and its ion conductivity is a key factor affecting its application in vanadium redox flow batteries(VRFBs).The casting solvent of PBI has a significant influence on the acid doping level of PBI membranes which is closely related to ionic *** this paper,3,3′-diaminobenzidine(DABz)and 4,4′-Dicarboxydiphenylether(DCDPE)were used as raw materials by solution condensation to prepare the PBI with ether bond *** chemical structure of PBI was determined by1H NMR and FT-IR,and the prepared PBI had good solubility which can be dissolved in a variety of *** PBI proton exchange membranes were prepared by solution coating with 5 different solvents of N,N-dimethylformamide(DMF),N,N-dimethylacetamide(DMAc),dimethyl sulfoxide(DMSO),1-methyl-2-pyrrolidone(NMP),methane sulfonic acid(MSA).The effects of different solvents on the ion conductivity and physicochemical properties were discussed in *** results showed that the PBI membrane prepared by using MSA as solvent(the PBI+MSA membrane)exhibits high water uptake,acid doping level and low vanadium ion *** VRFB assembled with the PBI+MSA membrane exhibited higher coulombic efficiency(CE)99.87%and voltage efficiency(VE)84.50%than that of the commercial Nafion115 membrane at100 m A·cm-2,and after 480 cycles,the EE value can still be maintained at 83.73%.The self-discharge time of a single battery was recorded to be as long as 1000 *** experimental data indicated that MSA is the best solvent for casting PBI membrane.

关键词： Polybenzimidazole Solvent Acid doping level Ion conductivity Proton exchange membrane Vanadium redox flow batteries

Synthesis of betanin by expression of the core betalain biosynthetic pathway in carrot

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Horticultural Plant Journal 2024年第3期10卷 732-742页

作者： Bo wang yahui wang Yuanjie Deng Quanhong Yao Aisheng Xiong State Key Laboratory of Crop Genetics and Germplasm Enhancement College of HorticultureNanjing Agricultural UniversityNanjingJiangsu 210095China Shanghai Key Laboratory of Agricultural Genetics and Breeding Biotechnology Research Institute of Shanghai Academy of Agricultural ScienceShanghai 201106China

Betalain has received increased attention because of its high nutritional value and crucial physiological *** on the elucidation of its core biosynthetic pathway,betalain can be produced in additional plants by metabolic *** of betalain in carrot(Daucus carota L.)can improve its nutritional quality and economic value by extracting betalain from the fleshy root,non-edible part,and processing residue of *** this study,two different constructs,namely,pYB:mCD(AomelOS,BvCYP76AD1S,and BvDODA1S)and p YB:CDD(BvCYP76AD1S,BvDODA1S,and MjcDOPA5GTS),were introduced into carrot for betanin synthesis by Agrobacterium-mediated *** can be synthetized in both transgenic calli,and p YB:m CD-transgenic callus can be used to produce betacyanin by suspension ***,pYB:mCD-transgenic seedlings can synthetize betanin only by tyrosine *** p YB:CDD-transgenic lines can synthetize betanin in whole *** betanin content in fleshy root of pYB:CDD-transgenic carrot was(63.4±9)μg·g^(-1)fresh weight according to quantitative *** betanin-producing carrot plant materials can be used to synthesize betanin for industrial application or consumption as dietary sources.

关键词： Daucus carota L. Betanin Biosynthesis Metabolic engineering Biofortification

Attribution analysis for water yield service based on the geographical detector method:A case study of the Hengduan Mountain region

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Journal of Geographical Sciences 2020年第6期30卷 1005-1020页

作者： DAI Erfu wang yahui Lhasa Plateau Ecosystem Research Station Key Laboratory of Ecosystem Network Observation and Mod-elingInstitute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Ecosystem services,which include water yield services,have been incorporated into decision processes of regional land use planning and sustainable *** pattern characteristics and identification of factors that influence water yield are the basis for decision ***,there are limited studies on the driving mechanisms that affect the spatial heterogeneity of ecosystem *** this study,we used the Hengduan Mountain region in southwest China,with obvious spatial heterogeneity,as the research *** water yield module in the InVEST software was used to simulate the spatial distribution of water ***,quantitative attribution analysis was conducted for various geomorphological and climatic zones in the Hengduan Mountain region by using the geographical detector *** factors,such as climate,topography,soil,vegetation type,and land use type and pattern,were taken into consideration for this *** key findings were ***,water yield spatial heterogeneity is influenced most by climate-related factors,where precipitation and evapotranspiration are the dominant ***,the relative importance of each impact factor to the water yield heterogeneity differs significantly by geomorphological and climatic *** flat areas,the influence of evapotranspiration is higher than that of *** relief increases,the importance of precipitation increases and eventually,it becomes the most influential *** is the most influential factor in a plateau climate zone,while in the mid-subtropical zone,precipitation is the main controlling ***,land use type is also an important driving force in flat ***,more attention should be paid to urbanization and land use planning,which involves land use changes,to mitigate the impact on water yield spatial *** fourth finding was that a risk detector showed that Primarosol and Anthropogenic soil areas,shrub areas,and areas with sl

关键词： water yield service Hengduan Mountain region InVEST software geographical detector attribution analysis

Photosynthesis adaption in Korean pine to gap size and position within Populus davidiana forests in Xiaoxing’anling, China

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Journal of Forestry Research 2022年第5期33卷 1517-1527页

作者： Xuannan Li yahui wang Zhihui Yang Ting Liu Changcheng Mu Center for Ecological Research Northeast Forestry UniversityHarbinHeilongjiang 150040People’s Republic of China

Forest gaps restrict the restoration of temperate secondary forest to broad-leaved Korean pine forest in zonal climax vegetation by affecting the growth of Korean pine(Pinus koraiensis).However,the photo synthetic adaptability of Korean pine to gap size and position within the gap is *** order to explore the adaptability of young Korean pine(35 years) to different gap sizes in Xiaoxing’anling,photo synthetic capacity and microenvironmental factors(leaf temperature,light transmittance) of Korean pine needles in three positions in the gap(central,transition,and edge areas) were *** gaps were identified in the secondary Populus davidiana forest:a large 201 m^(2) gap,a middle 112 m^(2) gap,and a small 50 m^(2) gap;12 m^(2) of the understory was sampled as a *** results show that:(1) maximum net photosynthetic rate(P_(max)) in needles of Korean pine growing in the large gap was higher than in the small gap,and P_(max) in the centre in the same gap was higher than in the transition and edge areas;(2) light saturation point(LSP) and photosynthetic quantum yield(AQY)of needles in the large gap were higher than in the small gap,while the light compensation point(LCP) and chlorophyll contents of needles were lower in the small gap;and,(3)P_(max) had a significant positive correlation with temperature and light *** is suggested that the larger the gap in secondary Populus davidiana forests,the greater the change in light intensity and temperatures,the stronger the light adaption of Korean pine needles and the higher the photosynthetic ***,in the recovery of broadleaved/Korean pine forests,suitable gaps should be created and gap microhabitats fully utilized to accelerate the restoration process.

关键词： Pinus koraiensis Gap size Position in the gap Maximum net photosynthetic rate

Remote sensing monitoring of the recent rapid increase in cultivation activities and its effects on desertification in the Mu Us Desert, China

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Journal of Arid Land 2023年第7期15卷 812-826页

作者： ZHAO Hongyan YAN Changzhen LI Sen wang yahui Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China National Earth System Science Data Center Beijing 100020China

The recent ecological improvement in the Mu Us Desert of China, largely attributed to large-scale afforestation projects, has created new opportunities for cultivation activities. However, the subsequent rapid increase in reclamation on desertification land and its impact on desertification have raised concerns. In this study, we first extracted data on cultivated land and desertification land in 1975,1990, 2000, 2005, 2010, 2015, and 2020 through the human-computer interaction visual interpretation method. By overlaying the cultivated land dynamics and desertification land, we subsequently explored the effect of cultivation activities on desertification in the Mu Us Desert during the six periods from 1975 to 2020(1975–1990, 1990–2000, 2000–2005, 2005–2010, 2010–2015, and 2015–2020). The results showed that cultivated land in the Mu Us Desert showed a fluctuating and increasing trend from 3769.26 km~2 in 1975 to 4865.73 km~2 in 2020, with 2010 as the turning point for the recent rapid increase. The main contributors included the large and regular patches distributed in Yuyang District and Shenmu of Shaanxi Province, and relatively smaller patches concentrated in Inner Mongolia Autonomous Region. The increased cultivated land from the reclamation on desertification land was dominated by moderate and severe desertification lands, and the decreased cultivated land that was transferred into desertification land as abandoned cultivated land was dominated by slight and moderate desertification lands. The effect of cultivation activities on desertification reversal(average area proportion of 10.61% for reversed desertification land) was greater than that of the development of desertification(average area proportion of 5.82% for developed desertification land). Nevertheless, compared to reversed desertification land,both the significant increase of developed desertification land during the periods of 2000–2005 and 2005–2010 and the insignificant decrease during the periods

关键词： cultivation activities desertification land desertification reversal and development reclamation spatial overlay analysis Mu Us Desert