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原子与分子物理学报 2025年第4期42卷 27-32页

作者： XU Jian-Qiang MA Zhao-Peng CHENG Si LIU Zhi-Cong ZHU guang-Lai Department of Physics School of Physics and Electronic InformationAnhui Normal UniversityWuhu 241002China

The microstructures and thermodynamic properties of mixed systems comprising pyridinium ionic liquid[HPy][BF_(4)]and acetonitrile at different mole fractions were studied using molecular dynamics simulation in this *** following properties were determined:density,self-diffusion coefficient,excess molar volume,and radial distribution *** results show that with an increase in the mole fraction of[HPy][BF_(4)],the self-diffusion coefficient ***,the excess molar volume initially decreases,reaches a minimum,and then *** rules of radial distribution functions(RDFs)of characteristic atoms are *** increasing the mole fraction of[HPy][BF_(4)],the first peak of the RDFs of HA1-F decreases,while that of CT6-CT6 rises at first and then *** indicates that the solvent molecules affect the polar and non-polar regions of[HPy][BF_(4)]differently.

关键词： Pyridinium ionic liquids Thermodynamic properties Molecular dynamics simulation Radial distribution functions

Detecting and diagnosing faults in dynamic stochastic distributions using a rational B-splines approximation to output PDFs

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控制理论与应用（英文版） 2003年第1期1卷 53-58页

作者： hongwang HongYUE ControlSystemsCentreDepartmentofElectricalEngineenngandElectromcs UMISTMaxlchesterM601QDU.K. InstituteofAutomation CtuncseAcademyofSciencesBeijing100080China

This paper presents a novel approach to detect and diagnose faults in the dynamic part of a class of stochastic systems . the Such a group of systems are subjected to a set of crisp inputs but the outputs considered are the measurable probability density functions (PDFs) of the system output, rather than the system output alone. A new approximation model is developed for the output probability density functions so that the dynamic part of the system is decoupled from the output probability density functions. A nonlinear adaptive observer is constructed to detect and diagnose the fault in the dynamic part of the system. Conver-gency analysis is performed for the error dynamics raised from the fault detection and diagnosis phase and an applicability study on the detection and diagnosis of the unexpected changes in the 2D grammage distributions in a paper forming process is included.

关键词： Fault detection and diagnosis Observer design Papermaking Stochastic systems

Multi-dimensional Backward Stochastic Differential Equations of Diagonally Quadratic Generators with a Special Structure

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Chinese Annals of Mathematics,Series B 2024年第6期45卷 855-868页

作者： guang YANG Shanghai Center for Mathematical Sciences Fudan University

The present paper is devoted to the well-posedness of a type of multi-dimensional backward stochastic differential equations（BSDE for short） with a diagonally quadratic generator. The author gives a new priori estimate, and prove that the BSDE admits a unique solution on a given interval when the generator has a sufficiently small growth of the off-diagonal elements（i.e., for each i, the i-th component of the generator has a small growth of the j-th row zjof the variable z for each j ≠ i）. Finally, a solvability result is given when the diagonally quadratic generator is triangular.

关键词： 60H10 BMO martingale Diagonally quadratic generator Multi-dimensional BSDE

《沧浪诗话》“正法眼”说的诗学意义——兼论“法眼”与“诗眼”

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三峡大学学报（人文社会科学版） 2025年第1期47卷 7-12页

作者：康光磊山西警察学院基础部山西太原030401

在《沧浪诗话》中,“正法眼”及相近表述所蕴含的诗学主张构成了严羽独特的“正法眼”说,它将难以琢磨、言说和触摸的最高诗道以禅喻的方式揭示出来,丰富了中国传统诗学话语体系,提升了古典诗学对于诗歌难言之妙的阐释力,在诗学史上有... 详细信息

在《沧浪诗话》中,“正法眼”及相近表述所蕴含的诗学主张构成了严羽独特的“正法眼”说,它将难以琢磨、言说和触摸的最高诗道以禅喻的方式揭示出来,丰富了中国传统诗学话语体系,提升了古典诗学对于诗歌难言之妙的阐释力,在诗学史上有着不容忽视的意义。通过厘定“正法眼”说相关术语的内涵,阐释“正法眼”说与严羽“诗识观”“妙悟说”等诗学主张有机融合的内在理路,进而提出“正法眼”说是逻辑自洽、内证严密的完整体系。通过“法眼”与“诗眼”的辨析,指出严羽既重视“诗中之眼”的局部锤炼,更重视“诗家之眼”的整体观照,从而彰显“正法眼”说在严羽“以禅喻诗”体系中独特的诗学意义。

关键词： “正法眼”说《沧浪诗话》诗学价值法眼诗眼

A FAS approach for stabilization of generalized chained forms: part 2. Continuous control laws

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Science China(Information Sciences) 2024年第3期67卷 114-135页

作者： guang-Ren DUAN Center for Control Theory and Guidance Technology Harbin Institute of Technology Shenzhen Key Laboratory of Control Theory and Intelligent Systems Southern University of Science and Technology

In this paper, continuous time-varying stabilizing controllers for the type of general nonholonomic systems proposed and treated in part 1 are designed using the fully actuated system(FAS) approach. The key step is to differentiate the first scalar equation, and by control of the obtained second-order scalar system, a proportional plus integral feedback form for the first control variable is obtained. With the solution to this designed second-order scalar system, the rest equations in the nonholonomic system form an independent time-varying subsystem which is then handled by the FAS approach. The overall designed controller contains an almost arbitrarily chosen design parameter, and is proven to guarantee the uniformly and globally exponential stability of the closed-loop system. The proposed approach is simple and effective,and is demonstrated with a practical example of ship control.

关键词： nonholonomic systems feedback stabilization fully actuated systems Lyapunov stability continuous controllers

Quantifying the strength of magnetic fields using baryon electric charge correlation

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Nuclear Science and Techniques 2024年第8期35卷 5-8页

作者： Xu‑guang Huang Physics Department and Center for Particle Physics and Field Theory Fudan UniversityShanghai 200433China Key Laboratory of Nuclear Physics and Ion‑beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Research Center for Theoretical Nuclear Physics National Natural Science Foundation of China and Fudan UniversityShanghai 200438China

Although heavy-ion collisions generate strong magnetic fields,their direct measurement is a challenging task.A new observable,the baryon electric charge correlation,was recently found to be sensitive to the magnetic field strength and thus could be used as a magnetometer for heavy-ion ***,this observable may shed light on the equation of state and phase structure of quantum chromodynamics(QCD)under magnetic *** and understanding the phase structure of quantum chromodynamics(QCD)is important in contemporary physics[1].

关键词： charge observable magnetic

Combustion of B4C/KNO3 binary pyrotechnic system

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Defence Technology（防务技术） 2021年第2期17卷 692-702页

作者： Jing-ran Xu Chen-guang Yan Chen-guang Zhu Department of Applied Chemistry School of Chemical EngineeringNanjing University of Science and TechnologyNanjingJiangsuChina

Presented herein is an experimental study on the combustion of B4C/KNO3 binary pyrotechnic *** products were tested using X-ray diffraction(XRD),scanning electron microscopy(SEM),and energy dispersive spectrometer(EDS).According to the results of tests and CEA calculation,the combustion reaction equation was *** flames and burning rates were recorded by a high speed camera and a *** effect of B4C particle size on the thermal sensitivity of B4C/KNO3 was investigated by differential scanning calorimetry(DSC)*** addition,a reliable method for calculating the flame temperature was *** on the results of experiments,the combustion reaction mechanism was briefly *** burning rate,flame temperature and thermal sensitivity of B4C/KNO3 increase with the decrease of B4C particle *** mass ratio of B4C/KNO3 has a great effect on combustion ***-rich compositions have low flame temperatures,low burning rates,and provide green light *** combustion reactions of fuel-rich compositions are vigorous,and the B4C/KNO3 with mass ratio of 25:75 has the highest burning rate and the highest flame temperature.

关键词： Pyrotechnics Combustion Flame Boron carbide

Synthesis,Characterization and DFT Calculation of a New Silver(I) Iodid Templated by Conjugated Cation:(ipq)_4Ag_4I_8

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Chinese Journal of Structural Chemistry 2006年第9期25卷 1148-1153页

作者： XIAO guang-Can Center of Analysis and Measurement Fuzhou University Fuzhou Fujian 350002 China

A silver iodide, （ipq）4Ag418 1, has been synthesized in the presence of ipq （ipq = N-（isopentyl）-quinolinium） acting as a structure-directing reagent （SDA）. Compound 1 crystallizes in the triclinic system, space group PT, with a = 9.850（2）, b = 11.564（2）, c = 16.111（3） ,A ,α = 104.64（3）, β = 105.73（3）, γ = 94.37（3）o, V= 1688.3（7） A^3, Z = 2, D,= 2.205 g/cm^3, F（000） = 1042, C28H33Ag2l4N2, Mr= 1120.90, μ（MoKa） = 4.836 mm^-1, the final R = 0.0363 and wR = 0.0761 for 5465 observed reflections with 1 〉 2σ（I）. 1 consists of uncoordinated structure-directing molecule and inorganic moiety tuned by organic SDA. Tetrameric Ag4I8^4- anion in 1 is composed of edgesharing AgI4 tetrahedra and AgI3 planar triangles. Electrostatic interaction between organic counter cations and inorgan!c moieties is present and contributes to the crystal packing. 1 was further characterized with IR, UV-Vis, elemental analysis and cyclic voltammetry. Based on the crystal structure data, quantum chemical calculation with DFr method was used to reveal the electronic structure and optical property of 1.

关键词： coordination polymers template synthesis iodide quaternary ammonium

Predicting Nonlinear Wave Trough Distributions Utilizing A Transformed Linear Simulation Method

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China Ocean Engineering 2018年第6期32卷 655-664页

作者： WANG Ying-guang State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE) Shanghai 200240China School of Naval Architecture Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China

This paper first proposes a new approach for predicting the nonlinear wave trough distributions by utilizing a transformed linear simulation method. The linear simulation method is transformed based on a Hermite transformation model where the transformation is chosen to be a monotonic cubic polynomial and calibrated such that the first four moments of the transformed model match the moments of the true process. The proposed new approach is applied for calculating the wave trough distributions of a nonlinear sea state with the surface elevation data measured at the coast of Yura in the Japan Sea, and its accuracy and efficiency are convincingly validated by comparisons with the results from two theoretical distribution models, from a linear simulation model and a secondorder nonlinear simulation model. Finally, it is further demonstrated in this paper that the new approach can be applied to all the situations characterized by similar nondimensional spectrum.

关键词： nonlinear wave troughs transformed linear simulation Hermite transformation nonlinear simulation

Prediction of Height and Period Joint Distributions for Stochastic Ocean Waves

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China Ocean Engineering 2017年第3期31卷 291-298页

作者： WANG Ying-guang State Key Laboratory of Ocean Engineering Shanghai Jiao Tong University Shanghai 200240 China Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE) Shanghai 200240 China School of Naval Architecture Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai 200240 China

This article proposes a new methodology to predict the wave height and period joint distributions by utilizing a transformed linear simulation method. The proposed transformed linear simulation method is based on a Hermite transformation model where the transformation is chosen to be a monotonic cubic polynomial, calibrated such that the first four moments of the transformed model match the moments of the true process. The proposed new approach is applied for calculating the wave height and period joint distributions of a sea state with the surface elevation data measured at an offshore site, and its accuracy and efficiency are favorably validated by using comparisons with the results from an empirical joint distribution model, from a linear simulation model and from a second-order nonlinear simulation model.

关键词： wave height and period transformed linear simulation Hermite transformation linear simulation nonlinearsimulation