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Particuology 2024年第7期90卷 1-9页

作者： Jin Yao Qiuju Chen li Zeng w.njin ding Key laboratory of Ministry of Education for Solid w.ste Treatment and Resource Recycle Southwest University of Science and TechnologyMianyang621010China Sichuan Engineering lab of Non-metallic Mineral Pow.er Modification and High-value Utilization Mianyang621010China School of Architecture and Civil Engineering Chengdu UniversityChengdu610106China

Based on the composition characteristics of carbide slag and the application of polyvinyl chloride,a method of preparing calcium carbonate w.th microstructure and nanostructure by using carbide slag as a raw.material and ammonium chloride as a leaching agent w.s *** factors for the preparation of calcium carbonate and the effects of different conditions on the crystal phase,grain size,and morphology of calcium carbonate w.re systematically *** results show.d that the nanosized calcium carbonate w.s prepared at 60 ml/min,25°C,no additional ammonia,and 60 *** product of spherical vaterite w.s in accordance w.th the relevant standards for the industrial precipitation of calcium ***,the reuse of carbonation filtrate w.s *** crystal phase,grain size,and morphology of the carbonation product could be controlled by adjusting the reaction *** manuscript provided a new.idea for resource utilization of carbide slag and preparing nanocalcium carbonate.

关键词： Carbide slag Ammonium chloride Cyclic utilization Micro and nano structure Product control

Parametric resonance of axially functionally graded pipes conveying pulsating fluid

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Applied Mathematics and Mechanics(English Edition) 2024年第2期45卷 239-260页

作者： Jie JING Xiaoye MAO Hu ding liqun CHEN Shanghai Key laboratory of Mechanics in Energy Engineering Shanghai Frontier Science Center of MechanoinformaticsShanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200444China Shanghai Institute of Aircraft Mechanics and Control Shanghai 200092China

Based on the generalized Hamilton's principle,the nonlinear governing equation of an axially functionally graded(AFG)pipe is *** non-trivial equilibrium configuration is superposed by the modal functions of a simply supported *** the direct multi-scale method,the response and stability boundary to the pulsating fluid velocity are solved analytically and verified by the differential quadrature element method(DQEM).The influence of Young's modulus gradient on the parametric resonance is investigated in the subcritical and supercritical *** general,the pipe in the supercritical region is more sensitive to the pulsating *** nonlinearity changes from hard to soft,and the non-trivial equilibrium configuration introduces more frequency components to the ***,the increasing Young's modulus gradient improves the critical pulsating flow.velocity of the parametric resonance,and further enhances the stability of the *** addition,w.en the temperature increases along the axial direction,reducing the gradient parameter can enhance the response *** w.rk further complements the theoretical analysis of pipes conveying pulsating fluid.

关键词： pipe conveying fluid axially functionally graded supercritical resonance multi-scale method parametric resonance

A multiscale differential-algebraic neural netw.rk-based method for learning dynamical systems

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International Journal of Mechanical System Dynamics 2024年第1期4卷 77-87页

作者： Yin Huang Jieyu ding College of Computer Science&Technology Qingdao UniversityQingdaoChina School of Mathematics and Statistics Qingdao UniversityQingdaoChina Center for Computational Mechanics and Engineering Simulation Qingdao UniversityQingdaoChina

The objective of dynamical system learning tasks is to forecast the future behavior of a system by leveraging observed ***,such systems can sometimes exhibit rigidity due to significant variations in component parameters or the presence of slow.and fast variables,leading to challenges in *** overcome this limitation,w. propose a multiscale differential-algebraic neural netw.rk(MDANN)method that utilizes lagrangian mechanics and incorporates multiscale information for dynamical system *** MDANN method consists of tw. main components:the lagrangian mechanics module and the multiscale *** lagrangian mechanics module embeds the system in Cartesian coordinates,adopts a differential-algebraic equation format,and uses lagrange multipliers to impose constraints explicitly,simplifying the learning *** multiscale module converts high-frequency components into low.frequency components using radial scaling to learn subprocesses w.th large differences in *** results demonstrate that the proposed MDANN method effectively improves the learning of dynamical systems under rigid conditions.

关键词： dynamical systems learning multibody system dynamics differential-algebraic equation neural netw.rks multiscale structures

An improved interval model updating method via adaptive Kriging models

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Applied Mathematics and Mechanics(English Edition) 2024年第3期45卷 497-514页

作者： Sha w.I Yifeng CHEN Hu ding liqun CHEN Shanghai Key laboratory of Mechanics in Energy Engineering Shanghai Frontier Science Center of MechanoinformaticsShanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200072China Shanghai Institute of Aircraft Mechanics and Control Shanghai 200092China

Interval model updating(IMU)methods have been w.dely used in uncertain model updating due to their low.requirements for sample ***,the surrogate model in IMU methods mostly adopts the one-time construction *** makes the accuracy of the surrogate model highly dependent on the experience of users and affects the accuracy of IMU ***,an improved IMU method via the adaptive Kriging models is *** method transforms the objective function of the IMU problem into tw. deterministic global optimization problems about the upper bound and the interval diameter through universal grey *** optimization problems are addressed through the adaptive Kriging models and the particle sw.rm optimization(PSO)method to quantify the uncertain parameters,and the IMU is *** the construction of these adaptive Kriging models,the sample space is gridded according to sensitivity *** sampling is then performed in key subspaces based on the maximum mean square error(MMSE)*** interval division coefficient and random sampling coefficient are adaptively adjusted w.thout human interference until the model meets accuracy *** effectiveness of the proposed method is demonstrated by a numerical example of a three-degree-of-freedom mass-spring system and an experimental example of a butted cylindrical *** results show.that the updated results of the interval model are in good agreement w.th the experimental results.

关键词： interval model updating(IMU) non-probabilistic uncertainty adaptive Kriging model surrogate model grey number

MYB2 and MYB108 regulate lateral root development by interacting w.th lBD29 in Arabidopsis thaliana

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Journal of Integrative Plant Biology 2024年第8期66卷 1675-1687页

作者： Feng Zhang Junxia w.ng Tingting ding Xuefeng lin Haiying Hu Zhaojun ding Huiyu Tian The Key laboratory of Plant Development and Environmental Adaptation Biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China Advanced Medical Research Institute Cheeloo College of MedicineShandong UniversityJinan 250012China

AUXIN RESPONSE FACTOR 7(ARF7)-mediated auxin signaling plays a key role in lateral root(lR)development by regulating dow.stream lATERAl ORGAN BOUNDARIES DOMAIN(lBD)transcription factor genes,including lBD16,lBD18,and *** proteins are believed to regulate the transcription of dow.stream genes as homodimers or ***,w.ether lBD29 forms dimers w.th other proteins to regulate lR development remains ***,w. determined that the Arabidopsis thaliana(l.)*** transcription factors MYB2 and MYB108 interact w.th lBD29 and regulate auxin-induced lR *** MYB2 and MYB108 w.re induced by auxin in an ARF7-dependent *** of MYB2 by fusion w.th an SRDX domain severely affected auxin-induced lR formation and the ability of lBD29 to induce lR *** contrast,overexpression of MYB2 or MYB108 resulted in greater lR numbers,except in the lbd29 mutant *** findings underscore the interdependence and importance of MYB2,MYB108,and lBD29 in regulating lR *** addition,MYB2–lBD29 and MYB108–lBD29 complexes promoted the expression of CUTIClE DESTRUCTING FACTOR 1(CDEF1),a member of the GDSl(Gly-Asp-Ser-leu)lipase/esterase family involved in lR *** summary,this study identified MYB2–lBD29 and MYB108–lBD29 regulatory modules that act dow.stream of ARF7 and intricately control auxin-mediated lR development.

关键词： ARF7 auxin lateral roots lBD29 MYB108 MYB2

Trade-offs betw.en chemical resistance to herbivory and responses to abiotic stresses in invasive plants

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JOURNAl OF PlANT ECOlOGY 2024年第2期17卷 18-23页

作者： Zhou, lifeng Yin, w.ndong ding, Jianqing Henan Univ Sch Life Sci State Key Lab Crop Stress Adaptat & Improvement Kaifeng 475004 Peoples R China

INTRODUCTION Plants change their traits to respond to shifting environments,enabling them to defend against biotic stresses such as herbivorous insects,and/or tolerate abiotic stresses,such as extreme climate(Callaw.y et al.2022;Zhang et al.2018,2022).There are often costs w.en plants produce secondary chemicals to adapt to varying biotic or abiotic environments(Abdala-Roberts et al.2016).

关键词： ENEMY RElEASE DEFENSE GROw.H DROUGHT GENERAlIST SPECIAlIST FlAVONOIDS AllOCATION EVOlUTION RAGw.ED

Microearthquake reveals the lithospheric structure at midocean ridges and oceanic transform faults

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Journal of Oceanology and limnology 2024年第3期42卷 697-700页

作者： Zhiteng YU Jiabiao lI w.iw.i ding Key laboratory of Submarine Geosciences&Second Institute of Oceanography Ministry of Natural ResourcesHangzhou 310012China

Mid-ocean ridge and oceanic transforms are among the most prominent features on the seafloor surface and are crucial for understanding seafloor spreading and plate tectonic dynamics,but the deep structure of the oceanic lithosphere remains poorly *** large number of microearthquakes occurring along ridges and transforms provide valuable information for gaining an indepth view.of the underlying detailed seismic structures,contributing to understanding geodynamic processes w.thin the oceanic *** studies have indicated that the maximum depth of microseismicity is controlled by the 600-℃***,this perspective is being challenged due to increasing observations of deep earthquakes that far exceed this suggested isotherm along mid-ocean ridges and oceanic transform *** mechanisms have been proposed to explain these deep events,and w. suggest that local geodynamic processes(e.g.,magma supply,mylonite shear zone,longlived faults,hydrothermal vents,etc.)likely play a more important role than previously thought.

关键词： microearthquake mid-ocean ridge oceanic transform fault oceanic lithosphere thermal structure earthquake location

(g,e)-Symmetric Rings

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Algebra Colloquium 2024年第2期31卷 263-270页

作者： Fanyun Meng Junchao w.i Nanqing ding School of Mathematics Yangzhou UniversityYangzhouJiangsu 225002China 不详

let R be a ring and e,g in E(R),the set of idempotents of *** R is called(g,e)-symmetric if abc=0 implies gacbe=0 for any a,b,c∈***,R is an e-symmetric ring if and only if R is a(1,e)-symmetric ring;in particular,R is a symmetric ring if and only if R is a(1,1)-symmetric *** show.that e∈E(R)is left semicentral if and only if R is a(1−e,e)-symmetric ring;in particular,R is an Abel ring if and only if R is a(1−e,e)-symmetric ring for each e∈E(R).w. also show.that R is(g,e)-symmetric if and only if ge∈E(R),geRge is symmetric,and gxye=gxeye=gxgye for any x,y∈*** e-symmetric rings,w. construct some new.classes of rings.

关键词： idempotent (g,e)-symmetric ring Abel ring left semicentral

Endomorphism Algebras of Support τ-Tilting Modules

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Algebra Colloquium 2024年第2期31卷 333-340页

作者： Yonggang Hu Panyue Zhou Nanqing ding Department of International Economics China Foreign Affairs University Beijing 100037China School of Mathematics and Statistics Changsha University of Science and Technology Changsha 410114China 不详

let A be a finite dimensional k-algebra and T be a supportτ-tilting right *** this note,w. give low.r and upper bounds for the global dimension of the endomorphism algebra End_(A)(T)under some mild ***,w. give some e... 详细信息

关键词： supportτ-tilting module τ-tilting module tilting module global dimension

NIR emissive Ru(Ⅱ)metallacycle as a sonosensitizer/sonocatalyst assisting in vivo bacterial diagnosis and eradicating multidrug-resistant biofilms

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Science China Chemistry 2024年第9期67卷 2785-2786页

作者： Chonglu li Qihang ding Jong Seung Kim School of Medicine Wuhan University of Science and TechnologyWuhan 430065China Department of Chemistry Korea UniversitySeoul 02841Republic of Korea

Microbial biofilm-related infections present a significant global health challenge,posing a major threat to public health systems[1].Biofilms,complex structures formed by the aggregation of microorganisms,are commonly found on medical devices,human tissue surfaces,and in natural environments[2].These biofilms exhibit high levels of antibiotic resistance and survival stability,rendering traditional antibiotic treatments ineffective in eradicating infections[3].

关键词： diagnosis dic rendering