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Double differential cross sections of light charged particle production for the n+^238U reaction

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Chinese Physics C 2018年第12期42卷 90-99页

作者： hai-Rui Guo Yin-Lu Han chong-hai cai Institute of Applied Physics and Computational Mathematics Beijing 100094China China Institute of Atomic Energy P.O.Box 275(41)Beijing 102413China Department of Physics Nankai UniversityTianjin 300071China

Production of light complex particles from the n＋^238u reaction is analyzed with the exciton model including the improved Iwamoto-Harada pickup mechanism for the preequilibrium process. It is allowed that some of the nucleons forming the complex ejectile come from levels below the Fermi energy, and the intrinsic structure of the emitted particle is taken into account. The equilibrium-state emissions are also considered by using Hauser- Feshbach theory with the width fluctuation correction and the evaporation model angular distributions, energy spectra and double differential cross sections of neutron, alpha emissions for the n＋^238U reaction are consistently calculated and analyzed with the energy range En ≤150 MeV. ENDF-formatted nuclear data including information charged particles are obtained. Moreover, all cross sections, proton, deuteron, triton and nuclear theoretical models in about the production of light

关键词： light charged particle production nuclear reaction theoretical model n+^238U reaction nuclear data at En≤ 150 MeV

Applicability of 9Be global optical potential to reactions of 7,10,11,12Be

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Chinese Physics C 2019年第9期43卷 55-61页

作者： Yong-Li Xu Yin-Lu Han hai-Ying Liang Zhen-Dong Wu hai-Rui Guo chong-hai cai College of Physics and Electronic Science Shanxi Datong UniversityDatong 037009China Key Laboratory of Nuclear Data China Institute of Atomic EnergyP.O.BOX(275-41)Beijing 102413China Institute of Applied Physics and Computational Mathematics Beijing 100094China Department of Physics Nankai UniversityTianjin 300071China

Elastic scattering angular distributions and total reaction cross-sections of 7,10,11,12Be projectiles are predicted by the systematic 9Be global phenomenological optical model potential for target mass numbers ranging from 24 to *** predictions provide a detailed analysis by their comparison with the available experimental ***,these elastic scattering observables are also predicted for some targets out of the mass number *** results are in reasonable agreement with the existing experimental data,and they are presented in this study.

关键词： global phenomenological optical model potential elastic scattering angular distributions total reaction cross sections

Applicability of 9Be global optical potential to description of 8,10,11B elastic scattering

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Chinese Physics C 2020年第3期44卷 65-72页

作者： Yong-Li Xu Yin-Lu Han hai-Ying Liang Zhen-Dong Wu hai-Rui Guo chong-hai cai College of Physics and Electronic Science Shanxi Datong UniversityDatong 037009China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Institute of Applied Physics and Computational Mathematics Beijing 100094China Department of Physics Nankai UniversityTianjin 300071China

We achieved a set of 9Be global phenomenological optical model potentials by fitting a large experimental dataset of the elastic scattering observable for target mass numbers from 24 to *** obtained 9Be global optical model potential was applied to predict elastic-scattering angular distributions and total reaction cross-sections of 8,10,11B *** predictions are made by performing a detailed analysis comparing with the available experimental ***,these elastic scattering observables are also predicted for some lighter targets outside of the given mass number range,and reasonable results are *** physical explanations for the observed differences are also discussed.

关键词： optical model potential elastic-scattering angular distribution total reaction cross section

Global optical model potential describing 12C-nucleus elastic scattering

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Chinese Physics C 2020年第12期44卷 123-132页

作者： Yong-Li Xu Yin-Lu Han Xin-Wu Su Xiao-Jun Sun hai-Ying Liang hai-Rui Guo chong-hai cai College of Physics and Electronic Science Shanxi Datong UniversityDatong 037009China Key Laboratory of Nuclear Data China Institute of Atomic EnergyP.O.BOX(275-41)Beijing 102413China College of Physics Guangxi Normal UniversityGuilin 541004China Institute of Applied Physics and Computational Mathematics Beijing 100094China Department of Physics Nankai UniversityTianjin 300071China

We construct a new global optical model potential to describe the elastic scattering of *** experimental data of elastic-scattering angular distributions and total reaction cross sections for targets from 24Mg to 209Bi are considered below 200 MeV within the framework of the optical *** results calculated using the derived global optical potential are then compared with the existing experimental *** reliability of the global optical potential is further tested by predicting the elastic scattering data out of the mass and energy ranges,within which the global potential parameters are determined,and reasonable results are also obtained.

关键词： optical model potential elastic-scattering angular distribution reaction cross section

Description of elastic scattering induced by the unstable nuclei^(9,10,11,13,14)C

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Chinese Physics C 2021年第11期45卷 122-127页

作者： Yong-Li Xu Yin-Lu Han Xin-Wu Su Xiao-Jun Sun hai-Ying Liang hai-Rui Guo chong-hai cai College of Physics and Electronic Science Shanxi Datong UniversityDatong 037009China Key Laboratory of Nuclear Data China Institute of Atomic EnergyP.O.BOX(275-41)Beijing 102413China College of Physics Guangxi Normal UniversityGuilin 541004China Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology Guangxi Normal UniversityGuilin 541004China Institute of Applied Physics and Computational Mathematics Beijing 100094China Department of Physics Nankai UniversityTianjin 300071China

The elastic-scattering angular distributions and total reaction cross sections of ^(9,10,11,13,14)C projectiles were predicted using the obtained ^(12)C and ^(9)Be global optical model potentials,*** predictions were analyzed in detail by comparison with the available experimental *** results indicate that the ^(12)C and ^(9)Be global optical model potentials provide a satisfactory description of the elastic scattering data for the reactions induced by the ^(9,10,11,13)*** the neutron-rich carbon isotope ^(14)C,the elastic scattering can be well described by changing the real part radius parameter of the ^(12)C global optical model *** physical explanations for the observed differences are further discussed.

关键词： optical model potential elastic-scattering angular distribution reaction cross section

Description of elastic scattering for 7Li-induced reactions on 1p-shell nuclei

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Chinese Physics C 2024年第2期48卷 153-161页

作者：徐永丽苏新武孙志豪韩银录孙小军张冬红蔡崇海 College of Physics and Electronic Science Shanxi Datong UniversityDatong 037009China Graduate School of China Academy of Engineering Physics Beijing 100088China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China College of Physics Guangxi Normal UniversityGuilin 541004China Department of Physics Nankai UniversityTianjin 300071China

The experimental data of elastic scattering angular distributions for 9Be,10B,11B,12C,13C,15N,and 16O targets from 4.5 to 131.8 MeV and 7Li target from 8.0 to 42.0 MeV are fitted to realize the global phenomenological optical potentials(GPOPs)for the 7Li-induced reactions on 1p-shell ***,the 7Li elastic scattering from the 1p-shell nuclei can be systematically described using the established *** elastic scattering angular distributions are also reanalyzed using a microscopic method within the framework of the new version of double folding S?o Paulo potential(SPP2).To better describe the elastic scattering at backward angles,the contribution of elastic transfer is further estimated by the distorted wave Born approximation(DWBA)*** on the obtained GPOPs,the inelastic scattering angular distributions are also obtained through the coupled channels(CC)method for the different excited states.

关键词： optical potential elastic scattering nuclear reaction mechanisms

RE-SEGNN:recurrent semantic evidence-aware graph neural network for temporal knowledge graph forecasting

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Science China(Information Sciences) 2025年

作者： Wenyu cai Mengfan LI Xuanhua SHI Yuanxin FAN Quntao ZHU hai JIN National Engineering Research Center for Big Data Technology and System Services Computing Technology and System Lab Cluster and Grid Computing Lab School of Computer Science and TechnologyHuazhong University of Science and Technology

Temporal knowledge graph(TKG) reasoning, has seen widespread use for modeling real-world events, particularly in extrapolation settings. Nevertheless, most previous studies are embedded models, which require both entity and relation embedding to make predictions, ignoring the semantic correlations among different entities and relations within the same timestamp. This can lead to random and nonsensical predictions when unseen entities or relations occur. Furthermore, many existing models exhibit limitations in handling highly correlated historical facts with extensive temporal depth. They often either overlook such facts or overly accentuate the relationships between recurring past occurrences and their current counterparts. Due to the dynamic nature of TKG, effectively capturing the evolving semantics between different timestamps can be *** address these shortcomings, we propose the recurrent semantic evidenceaware graph neural network(RE-SEGNN), a novel graph neural network that can learn the semantics of entities and relations simultaneously. For the former challenge, our model can predict a possible answer to missing quadruples based on semantics when facing unseen entities or relations. For the latter problem, based on an obvious established force, both the recency and frequency of semantic history tend to confer a higher reference value for the current. We use the Hawkes process to compute the semantic trend, which allows the semantics of recent facts to gain more attention than those of distant facts. Experimental results show that RE-SEGNN outperforms all SOTA models in entity prediction on 6 widely used datasets, and 5 datasets in relation prediction. Furthermore, the case study shows how our model can deal with unseen entities and relations.

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CDCC Approaches and Roles of Closed Channels in d-Nucleus Reactions

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Communications in Theoretical Physics 2008年第9期50卷 719-724页

作者： AN hai-Xia cai chong-hai Department of Physics Nankai University Tianjin 300071 China

The effect of deuteron breakup in d-nucleus reaction is treated with the continuum discretized coupled channels （CDCC） approach, and the effects on the total reaction cross sections and elastic scattering angular distributions are studied by comparing the calculations of CDCC and spherical optical model with our global deuteron optical potential [Phys. Rev. C 73 （2006） 054605] below 200 MeV, for target nuclei ranging from ^12C to ^208Pb. The contributions from the closed channels to the total reaction and breakup cross sections, and angular distributions of elastic scattering are also seriously discussed.

关键词： CDCC approach closed channel spherical optical model global deuteron optical potential

EEG-based Emotion Recognition Using Multiple Kernel Learning

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Machine Intelligence Research 2022年第5期19卷 472-484页

作者： Qian cai Guo-chong Cui hai-Xian Wang School of Statistics and Data Science Nanjing Audit UniversityNanjing 211815China Key Laboratory of Child Development and Learning Science of Ministry of Education School of Biological Science&Medical EngineeringSoutheast UniversityNanjing 210096China Institute of Artificial Intelligence of Hefei Comprehensive National Science Center Hefei 230094China

Emotion recognition based on electroencephalography(EEG)has a wide range of applications and has great potential value,so it has received increasing attention from academia and industry in recent ***,multiple kernel learning(MKL)has also been favored by researchers for its data-driven convenience and high ***,there is little research on MKL in EEG-based emotion ***,this paper is dedicated to exploring the application of MKL methods in the field of EEG emotion recognition and promoting the application of MKL methods in EEG emotion ***,we proposed a support vector machine(SVM)classifier based on the MKL algorithm EasyMKL to investigate the feasibility of MKL algorithms in EEG-based emotion recognition *** designed two data partition methods,random division to verify the validity of the MKL method and sequential division to simulate practical ***,tri-categorization experiments were performed for neutral,negative and positive emotions based on a commonly used dataset,the Shanghai Jiao Tong University emotional EEG dataset(SEED).The average classification accuracies for random division and sequential division were 92.25%and 74.37%,respectively,which shows better classification performance than the traditional single kernel *** final results show that the MKL method is obviously effective,and the application of MKL in EEG emotion recognition is worthy of further *** the analysis of the experimental results,we discovered that the simple mathematical operations of the features on the symmetrical electrodes could not effectively integrate the spatial information of the EEG signals to obtain better *** is also confirmed that higher frequency band information is more correlated with emotional state and contributes more to emotion *** summary,this paper explores research on MKL methods in the field of EEG emotion recognition and provides a new way of thinking for EE

关键词： Emotion recognition electroencephalography(EEG) multiple kernel learning machine learning brain computer interface