期刊：
Journal of Biological Dynamics,2022年16(1):354-372 ISSN：1751-3758
通讯作者：
Zhu, X.
作者机构：
[Zhu, Xiaoxiao; Ouyang, Zigen; Wang, Huilan] Univ South China, Sch Math & Phys, Hengyang, Peoples R China.
通讯机构：
[Xiaoxiao Zhu; Huilan Wang; Zigen Ouyang] S;School of Mathematics and Physics, University of South China, Hengyang, People's Republic of China<&wdkj&>School of Mathematics and Physics, University of South China, Hengyang, People's Republic of China<&wdkj&>School of Mathematics and Physics, University of South China, Hengyang, People's Republic of China
关键词：
34A37;34C25;37N25;Poincaré map;State-dependent impulse;order-1 periodic solution;predator–prey model;successor function
摘要：
Abstract: In this paper, we aim at the traveling-wave solution of a class of bacterial degradation host tissue models. In order to study the local stability of the traveling-wave solution, we need to study its asymptotic behavior. We transform a competitive system into a cooperative system, discuss the types and stability of equilibrium points, and study its asymptotic behavior at unstable points using the method of comparison principle and asymptotic analysis.#@#@#摘要: 本文针对一类细菌降解宿主组织模型的行波解，为了研究行波解的局部稳定性，我们需要研究其渐近行为。我们将竞争系统转化为合作系统，讨论平衡点的类型和稳定性，并利用比较原理和渐近分析的方法，研究了它在不稳定点的渐近行为。
作者机构：
[Pang, Min; Chen, Xue-Kun; Liu, Jun; Tan, Jia-Ling] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[Xie, Zhong-Xiang] Hunan Inst Technol, Dept Math & Phys, Hengyang 421002, Peoples R China.;[Zhou, Wu-Xing] Hunan Univ Sci & Technol, Sch Mat Sci & Engn, Xiangtan 411201, Peoples R China.;[Zhou, Wu-Xing] Hunan Univ Sci & Technol, Hunan Prov Key Lab Adv Mat New Energy Storage & Co, Xiangtan 411201, Peoples R China.
通讯机构：
[Xie, Z.-X.] D;[Zhou, W.-X.; Liu, J.] S;School of Mathematics and Physics, China;Department of Mathematics and Physics, China;School of Materials Science and Engineering, China
摘要：
With the development of computer technology, the role of artificial intelligence in the medical field has become increasingly prominent. Especially in recent years, the new type of intelligent impact recognition robot assists doctors in disease diagnosis, which greatly improves the efficiency of doc-tors’ diagnosis. This paper mainly studies the image recognition accuracy of the neural network model affected for CT. This article takes the lung CT images of patients with new coronary pneumo-nia as the research object. Feature extraction from CT images. Build the convolutional neural net-work model, AlexNet deep neural network model and SE-ResNet neural network model. Finally, the accuracy of the convolutional neural network algorithm is stable at 80%. The accuracy rate of the AlexNet deep neural network model is 83%, the accuracy rate of SE-ResNet neural network model is 87%, these models can help doctors to quickly diagnose diseases.
期刊：
Journal of Radioanalytical and Nuclear Chemistry,2022年331(10):4179-4188 ISSN：0236-5731
通讯作者：
Zhenghua Xu
作者机构：
[Chen, Yifan; Lin, Dongyin; Dai, Xingwang; Chen, Yan] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Chen, Yifan; Lin, Dongyin; Dai, Xingwang; Xu, Zhenghua; Liu, Yong; Chen, Yan] Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang 421001, Hunan, Peoples R China.;[Liu, Yong] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Guangdong, Peoples R China.;[Xu, Zhenghua] Univ South China, Sch Math & Phys, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Zhenghua Xu] H;Hunan Province Engineering Technology Research Centre of Uranium Tailings Treatment Technology, Hengyang, China<&wdkj&>School of Mathematics and Physics, University of South China, Hengyang, China
摘要：
Acceleration, displacement, stress response, and other dynamic response topics are currently the key topics of research. Because uranium tailings reservoirs are radioactive, earthquakes can also cause radon to be released. In order to monitor the acceleration response, displacement (both surface and interior), and radon exhalation rate of the dam body of the uranium tailings reservoir under various seismic peak accelerations, the shaker model test is used. When the peak acceleration is 0.7 g, the displacement swings even more visibly, and when the peak acceleration is 1.0 g, the surface of the dam shows clear fissures. However, the radon response will be quicker and stronger, and as the acceleration of the seismic peak keeps rising, the response gets stronger and stronger. As a result, the dynamic reaction can also be determined from the radon response. The findings of the tests can be used as a guide for the safe and stable operation of uranium tailings reservoirs.
期刊：
Journal of Radiation Research and Applied Sciences,2022年15(1):21-31 ISSN：1687-8507
通讯作者：
Chen, Yifan;Liu, Y
作者机构：
[Lin, Dongying; Chen, Yifan; Dai, Xingwang; Liu, Yong; Chen, YF; Xie, Jiali] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Liu, Yong] Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang 421001, Peoples R China.;[Liu, Yong; Xie, Jiali] Hunan Prov Engn Res Ctr Radioact Control Technol, Hengyang 421001, Peoples R China.;[Lin, Dongying; Chen, Yifan; Dai, Xingwang] Univ South China, Sinosteel Maanshan Inst Min Res PostgraduateTrain, Hengyang 421001, Hunan, Peoples R China.;[Wu, Xianwei] Univ South China, Sch Math & Phys, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Liu, Y ; Chen, YF] U;Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
关键词：
Analytic hierarchy process;Cloud model;Uranium tailings impoundment dam security
摘要：
To solve the problem of safety and stability of the uranium tailings impoundment dam, based on the whole process of emergency management, the safety and stability evaluation system of the uranium tailings impoundment dam is established by using analytic hierarchy process (AHP) from the four aspects of design and construction, natural environment, operational stability and management, and the general weight of each evaluation index is calculated; the improved AHP-cloud model is introduced to obtain the basic evaluation cloud map for the safety and stability of the uranium tailing dam and two typical dams were evaluated in a large uranium tailings impoundment in southern China. The results show that the model can produce a more accurate evaluation of the safety and stability of the uranium tailings impoundment dam, and provide a reference for the subsequent decommissioning management work.
作者机构：
[刘杰豪; 洪昌寿] School of Resource Environment and Safety Engineering, University of South China, Hunan, Hengyang, 421000, China;College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong, Shenzhen, 518000, China;[徐正华] College of Mathematics and Science, University of South China, Hunan, Hengyang, 421000, China;[刘永] School of Resource Environment and Safety Engineering, University of South China, Hunan, Hengyang, 421000, China, College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong, Shenzhen, 518000, China
通讯机构：
[Liu, Y.] S;School of Resource Environment and Safety Engineering, Hunan, China
期刊：
EUROPEAN PHYSICAL JOURNAL A,2022年58(9):1-19 ISSN：1434-6001
通讯作者：
Xiao-Hua Li
作者机构：
[Zhu, De-Xing; Li, Xiao-Hua; Xu, Yang-Yang; Chen, Xun] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Wu, Xi-Jun] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[He, Biao] Cent South Univ, Coll Phys & Elect, Changsha 410083, Peoples R China.;[Li, Xiao-Hua] Univ South China, Natl Exemplary Base Int Sci & Tech Collaborat Nuc, Hengyang 421001, Peoples R China.;[Li, Xiao-Hua] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang 421001, Peoples R China.
通讯机构：
[Xiao-Hua Li] S;School of Nuclear Science and Technology, University of South China, Hengyang, People’s Republic of China<&wdkj&>National Exemplary Base for International Sci and Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, Hengyang, People’s Republic of China<&wdkj&>Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, Hengyang, People’s Republic of China<&wdkj&>Key Laboratory of Low Dimensional Quantum Structures and Quantum Control, Hunan Normal University, Changsha, People’s Republic of China
摘要：
Based on the Hatsukawa formula (Hatsukawa et al. in Phys Rev C 42:674, 1990), modifying the coefficient F(Z) and considering the blocking effect of unpaired nucleons, in our previous work (Xu and Liu in Eur Phys J A 58:16, 2022) we proposed an improved semi-empirical formula for evaluating the favored
$$\alpha $$
decay half-lives. In this work, considering the contribution of centrifugal potential, we generalize this formula to unfavored
$$\alpha $$
decay and propose a unified formula for
$$\alpha $$
decay half-lives. Using this formula, we systematically calculate the unfavored
$$\alpha $$
decay half-lives of 130 odd-A and 78 odd–odd nuclei with the corresponding root-mean-square (rms) deviations being 0.503 and 0.603, respectively. Meanwhile the rms deviation of
$$\alpha $$
decay half-lives for all the 700 nuclei taken from NUBASE2020 is only 0.380. Moreover, we extend this formula to predict the
$$\alpha $$
decay half-lives of 144 even–even, odd-A and odd–odd nuclei with Z = 117, 118, 119 and 120. For comparison, the unitary Royer formula (DZR) (Deng et al. in Phys Rev C 101:034307, 2020) proposed by Deng et al. and the modified universal decay law (MUDL) (Soylu and Qi in Nucl Phys A 1013:122221, 2021) proposed by Soylu et al. are also used. The predictions of these formulas are basically consistent with each other.
摘要：
Abstract: This paper focuses on the non-zero asymptotic value of the smooth solitary wave of the mCH equation and directly gives the explicit expression of the solitary wave solution through the analysis of the planar dynamical system.#@#@#摘要: 本文关注mCH方程的非零渐近值的光滑孤立波，并通过平面动力系统的分析方法，直接给出了孤立波解的显示表达式。
