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Study on the Method to Measure the Evidence Simulation Degree

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Study on the Method to Measure the Evidence Simulation Degre...

Theoretical Studies on the Interactions of Cations with Diazine

第25届中国控制与决策会议

作者： LI Yongsen cao ze MIN Jie Management School Anhui University of Architecture

ISBN: (纸本)9781467355322

Some absurdities can be well dispelled or prevented if the simulation degree of different evidence bodies is defined properly and scientifically. This paper reconstructs and describes the frame of discernment by Euclid space. It presents a new method to measure the simulation degree of different evidence bodies based on vectorized evidence. The application of simulation degree to dispel the absurdities is also given in the paper.

关键词： Evidence theory vectorization Simulation degree Support degree

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Chinese Journal of Structural Chemistry 2006年第11期25卷 1321-1330页

作者： CHEN Xing WU Wen-Peng ZHANG Jing-Lai cao ze-Xing Institute of Fine Chemistry and Engineering Henan University Kaifeng 475001 China Department of Chemistry and State Key Laboratory for Physical Chemist~ of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China

Density functional theory and MP2 calculations have been used to determine the geometries, stabilities, binding energies, and dissociative properties of cation-diazine complexes M^n＋-C4H4N2 （M^n＋= Li^＋, B^＋, Al^＋, Be^2＋, Mg^2＋, Ca^2＋）. The calculated results indicate that most complexes are stable except the π complexes of Ca^2＋-pyridazine, Ca^2＋-pyrazine, Al^＋-pyrimidine and Al^＋-pyrimidine. The a complexes are generally much more stable than their π counterparts. Among the π complexes, the cation-pyrazine π complexes have slightly higher stability. The nature of the ion-molecule interactions has been discussed by the natural bond orbital analysis and frontier molecular orbital interactions. In these a complexes, there is stronger covalent interaction between B^＋ and diazine. In the selected π complexes, B^＋ and Be^2＋ have stronger covalent interaction with diazine, while the other cations mainly have electrostatic interaction with diazine.

关键词： DFT and MP2 calculations cation-diazine complexes cation-molecule interactions

Structural and Spectroscopic Properties of Linear Carbon Chains NC_(2n)N and HC_(2n+_1)N(n=1～10)

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Chinese Journal of Structural Chemistry 2005年第8期24卷 885-894页

作者： ZHANG Jing-Lai WU Wen-Peng WANG Lian-Bin cao ze-Xing College of Chemistry and Chemical Engineering Henan University ChinaKaifeng 475001 State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry Xiamen University ChinaXiamen 361005

Using density functional theory, geometries and vibrational frequencies of linear chains NC2nN and HC2n＋1N （n = 1 - 10） have been investigated. Time-dependent density functional theory （TD-DFF） has been used to calculate the vertical transition energies and oscillator strengths for the x^1∑g^＋→I^1∑u^＋ transition in NC2,N （n = 1 -10） and X^1∑ → I^1∑^＋ transition in HC2n＋1N （n =1 -7）. On the basis of present calculations, the explicit expressions for the size dependence of the excitation energy and the first adiabatic ionization energy in both carbon chains have been suggested.

关键词： NC2nN and HC2n+1N DFT and TD-DFT electronic spectra adiabatic ionization energy size dependence

Equilibrium Segregation to Free Surface:Kinet ics and Experiment

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Chinese Physics Letters 1999年第5期16卷 364-366页

作者： cao ze-xian Ralf Mueller WANG En-ge NIE Yu-xin State Key Laboratory for Surface Physics Institute of PhysicsChinese Academy of SciencesBeijing 100080 Department of Physics University Kaiserslautern67653 KaiserslauternGermany

Fick's first law is modified with an additional term df(x)/dx to describe the segregation phenomenon,f(x)is a local,analytical function related to the depth profile at *** thus can be determined experimentally by depth profiling *** starting in an initially homogeneous solid is described by an inhomogeneous diffusion equation on the half-infinite *** with and without formation of overlayer suggests different boundary *** solution for the Ansatz f(x)=as exp(-x/d_(s))is in perfect agreement with experimental results on sulphur segregation to the surface of *** from the detailed kinetics,activation energy can be inferred from the surface concentration evolution under different *** sulphur segregation in titanium,E_(act)=718 meV/atom.

关键词： technique. titanium sulphur

Static or dynamic pear shapes in radioactive nucleus ^(224)Rn?

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Nuclear Science and Techniques 2024年第11期35卷 164-173页

作者： Xian-Ye Wu Jin-ze cao Kun-Ning Zhao Zhong-Min Liu Jian Xiang En-Fu Zhou College of Physics and Communication Electronics Jiangxi Normal UniversityNanchang 330022China Jiangxi Provincial Key Laboratory of Advanced Electronic Materials and Devices Nanchang 330022China College of Physics and Electronic Engineering Chongqing Normal UniversityChongqing 401331China School of Physics and Astronomy Sun Yat-sen UniversityZhuhai 519082China

We report a comprehensive study on low-lying parity doublet states of ^(224)Rn by mixing both quadrupole-and octupoleshaped configurations in multireference covariant density functional theory,in which broken symmetries in configurations are restored using projection *** low-lying energy spectrum is reasonably reproduced when the shape fluctuations in both the quadrupole and octupole shapes are *** octupole transition strength in ^(224)Rn is found to be B(E3;3_(1)^(-)→0_(1)^(+))=43 W.u.,comparable to that in ^(224)Ra,whose data are 42(3)W.u..Our results indicate that ^(224)Rn shares similar low-energy structure with ^(224)Ra despite the excitation energy of first 3^(−)state of the former nucleus is higher than that of the *** study suggests ^(224)Rn is a candidate for the search for permanent electric dipole moment.

关键词： Covariant density functional theory Parity doublet bands Octupole correlations Electric transition strengths

ML and CFD Simulation of Flow Structure around Tandem Bridge Piers in Pressurized Flow

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Computers, Materials & Continua 2023年第4期75卷 1711-1733页

作者： Aliasghar Azma Ramin Kiyanfar Yakun Liu Masoumeh Azma Di Zhang ze cao Zhuoyue Li School of Hydraulic Engineering Faculty of Infrastructure EngineeringDalian University of TechnologyDalian116024China Department of Art and Architecture Payame Noor UniversityShiraz19395-4697Iran School of Foreign Languages Nanjing Xiaozhuang UniversityNanjing211171China

Various regions are becoming increasingly vulnerable to the increased frequency of floods due to the recent changes in climate and precipitation patterns throughout the *** a result,specific infrastructures,notably bridges,would experience significant flooding for which they were not intended and would be *** flow field and shear stress distribution around tandem bridge piers under pressurized flow conditions for various bridge deck widths are examined using a series of three-dimensional(3D)*** is indicated that scenarios with a deck width to pier diameter(Ld/p)ratio of 3 experience the highest levels of turbulent *** addition,maximum velocity and shear stresses occur in cases with Ld/p equal to *** indicate that increasing the number of piers from 1 to 2 and 3 results in the increase of bed shear stress by 24%and 20%***,five machine learning algorithms,including Decision Trees(DT),Feed Forward Neural Networks(FFNN),and three Ensemble models,are implemented to estimate the flow field and the turbulent *** indicated that the highest accuracy for estimation of U,and W,were obtained using AdaBoost ensemble with R2=0.946 and 0.951,***,the Random Forest algorithm outperformed AdaBoost slightly in the estimation of V and turbulent kinetic energy(TKE)with R2=0.894 and 0.951,respectively.

关键词： Bridge pier scour process deck width machine learning turbulent structure

A Single Cluster Covering for Dodecagonal Quasiperiodic Ship Tiling

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Chinese Physics Letters 2013年第2期30卷 174-177页

作者： LIAO Long-Guang ZHANG Wen-Bin YU Tong-Xu cao ze-Xian Institute of Physics Chinese Academy of SciencesBeijing 100190

The single cluster covering approach provides a plausible mechanism for the formation and stability of octagonal and decagonal quasiperiodic *** dodecagonal quasiperiodic patterns,such a single cluster covering scheme is still *** demonstrate that ship tiling,one of the dodecagonal quasiperiodic structures,can be completely covered by a single cluster.A deflation procedure is devised by assigning proper orientations to different tiles,and nine types of vertex configurations,if the mirror patterns are considered to be identical,have been identified,which fulfill the closure condition under deflation and all result in a T-cluster centered at the vertex.

关键词： cluster closure mirror

Electron-Spectroscopy Study of Amorphous CN:Ti Films

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Chinese Physics Letters 1999年第12期16卷 928-930页

作者： cao ze-xian GUO Jian-dong WANG En-ge LIU Feng-qin State Key Laboratory for Surface Physics Institute of PhysicsChinese Academy of SciencesBeijing 100080 Institute of High Energy Physics Chinese Academy of SciencesBeijing

Amorphous CN:Ti films deposited by using the reactive magnetron sputtering method were annealed in vacuum under 200 to 600℃. Incorporation of Ti (less than 3at.%) has brought some new perspectives to the material. Electron-energy-loss spectrum indicates improved conductivity in CN:Ti films as in the insulating CN films. The high-resolution core-level x-ray photoelectron spectroscopy (XPS) studies show that most carbon atoms form homeopolar bonding in as-deposited CN:Ti film. While the N Is line always shrinks with increasing annealing temperature, the total full width at half maximum of C Is line decreases only at annealing temperature over 300℃ when the broadening due to heterobonding formation is outdone by the effect of increasing order. An enhanced π-band feature in the valence-XPS spectra at high annealing temperatures confirms the graphitization tendency of this material.

关键词： material. annealing Electron

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水溶液中结合水的定义与量化

物理学报 2019年第1期68卷 45-55页

作者：王强曹则贤中国科学院物理研究所北京100190

水溶液中溶质的结合水具有不同于远离溶质的自由水的结构和性质.结合水的存在对水和溶质结构和动力学性质均具有显著甚至决定性的影响.然而,对结合水动力学和热力学性质的定量理解在诸多方面一直存在争议甚至严重分歧,其中重点包括如何... 详细信息

水溶液中溶质的结合水具有不同于远离溶质的自由水的结构和性质.结合水的存在对水和溶质结构和动力学性质均具有显著甚至决定性的影响.然而,对结合水动力学和热力学性质的定量理解在诸多方面一直存在争议甚至严重分歧,其中重点包括如何定义和量化结合水,如何表征结合水和自由水的动力学差别,结合水如何参与生物大分子各种生物功能过程,以及溶质或界面影响结合水结构与性质的途径等.给出结合水定义的物理学依据和量化方法,是深入理解上述问题的第一步.本文简述了各种不同谱学方法定义结合水的基本原理及量化的困难,强调具有不同时间和空间响应尺度的测试方法所得结合水数不必完全可比.此外,系列水溶液物性随浓度升高会明显改变其浓度依赖关系,相应拐点浓度常被用于量化稀溶液中的溶质结合水数.我们近期研究的水溶液玻璃化转变温度-浓度关系,为结合水的定义、量化和水溶液的三区划分提供了物理依据,同时揭示了上述利用性质-浓度关系拐点浓度量化结合水方法的不足.

关键词：水溶液结合水自由水玻璃化