Polycyclic aromatic hydrocarbons(PAHs),PANHs,and peptoids dust spectral calculations from the interstellar medium(ISM)are important for dust observations and theory.Our goal is to calculate the radiation spectrum of s...Polycyclic aromatic hydrocarbons(PAHs),PANHs,and peptoids dust spectral calculations from the interstellar medium(ISM)are important for dust observations and theory.Our goal is to calculate the radiation spectrum of spherical PAHs dust clusters in a vacuum containing ionized and applied in the presence of an electric field.We propose a new simple computational model to calculate the size of three-dimensional spherical dust clusters formed by different initial dust structures.By the Vienna Ab-initio Simulation Package code,the density functional theory with the generalized approximation was used to calculate the electron density gradient and obtain the radiation spectrum of dust.When the radius of spherical dust clusters is~[0.009-0.042]μm,the dust radiation spectrum agrees well with the Z=0.02 mMMP stellar spectra,and the PAHs radiation spectrum of NGC 4676 at wavelengths of(0-5]μm and(5-10]μm,respectively.In the ionized state,the N-PAH,C_(10)H_(9)N,2(C_(4)H_(4))^(1+),and peptoids 4(CHON),(C_(8)H_(10)N_(2)O_(5))^(1+)dust clusters at 3.3μm,while the 2(C_(22)H_(21)N_(3)O_(2))^(1+),4(CHON)dust clusters at 5.2μm have obvious peaks.There is a characteristic of part of PAHs and peptoids clusters radiation at the nearinfrared wavelength of 2μm.However,especially after applying an electric field to the dust,the emission spectrum of the dust increases significantly in the radiation wavelength range[3-10]μm.Consequently,the dust clusters of PAHs,PANHs,and peptoids of the radius size~[0.009-0.042]μm are likely to exist in the ISM.展开更多
This paper examines the bipartite consensus problems for the nonlinear multi-agent systems in Lurie dynamics form with cooperative and competitive communication between different agents. Based on the contraction theor...This paper examines the bipartite consensus problems for the nonlinear multi-agent systems in Lurie dynamics form with cooperative and competitive communication between different agents. Based on the contraction theory, some new conditions for the nonlinear Lurie multi-agent systems reaching bipartite leaderless consensus and bipartite tracking consensus are presented. Compared with the traditional methods, this approach degrades the dimensions of the conditions, eliminates some restrictions of the system matrix, and extends the range of the nonlinear function. Finally, two numerical examples are provided to illustrate the efficiency of our results.展开更多
We have chosen the Large Scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) code to calculate the coalescence of silicon carbide (SiC),silicon oxide dust (SiO) in the AGB stellar wind.LAMMPS is a classica mo...We have chosen the Large Scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) code to calculate the coalescence of silicon carbide (SiC),silicon oxide dust (SiO) in the AGB stellar wind.LAMMPS is a classica molecular dynamics simulation code.At the same time,we consider the effect of temperature on the evolution of molecular dynamics.We also calculated the temperature change of non-spherical SiC,SiO dust coalescence.The condensation temperature range of SiC dust in the AGB stellar wind is[300–500]k and[900–1100]k for SiO Finally,the infrared spectrum of SiC was calculated using Gaussian 16 software.The 77SiC,70Si_(3)C_(3),and 121Si_(3)C_(3) models have clear characteristic peaks of infrared spectra responding at 5,8.6,11.3,15,19,and 37μm.展开更多
Good self-management can help hemodialysis patients improve their quality of life and survival rate. This article reviews the status quo of self-care ability of maintenance hemodialysis patients, the influencing facto...Good self-management can help hemodialysis patients improve their quality of life and survival rate. This article reviews the status quo of self-care ability of maintenance hemodialysis patients, the influencing factors of self-care ability and the intervention measures. To improve the self-care ability and quality of life of patients, coordinated nursing intervention, self-efficacy intervention, psychological intervention and health education were proposed. To provide a reference for the self-management of hemodialysis patients.展开更多
We sought to assess the psychological status and diabetes-related distress of Chinese type 1 diabetes patients in Jiangsu province, China. According to the World Health Organization criteria, 42 patients with type 1 d...We sought to assess the psychological status and diabetes-related distress of Chinese type 1 diabetes patients in Jiangsu province, China. According to the World Health Organization criteria, 42 patients with type 1 diabetes were enrolled in the study and assessed with the Self-Rating Anxiety Scale （SAS）, Self-Rating Depression Scale （SDS） and Diabetes Distress Scale （DDS）. All data were tabulated and statistical analyses were performed. The study summarized cases of 42 patients with type 1 diabetes, including 17 males and 25 females with a mean age of 23- 12 years and a mean duration of diabetes of 7_ 6 years. Compared to the Chinese normative data, the SAS standard score was significantly higher, whereas SDS standard score had no statistical significance. The SAS standard score was most highly correlated with diabetes duration （y = 0.547, P = 0.011）. Additionally, 19.5% of the patients had moderate or even severe diabetes-related distress and 21.4% had moderate or even severe emo- tional burden while 26.2% had regimen-related distress. Multiple stepwise regression analysis showed that the mean correlation between DDS and the four domains was high, particularly the emotional burden domain （esti- mated D = 0.363, P 〈 0.001） and regimen-related distress domain （estimated 13 = 0.356, P 〈 0.001）. The correlation between SAS and DDS was positive （estimated 13 = 0.039, P = 0.027）. In conclusion, the results showed the im- portance of psychological aspects in Chinese individuals with type 1 diabetes. Screening and treatment of psycho- logical aspects may result in better adherence and increased quality of life for patients with diabetes.展开更多
基金the Independent Innovation Project for Postgraduates of Central South University(No.160171008)the National Natural Science Foundation of China(project No.U2031204)the project of Xinjiang(No.2021D01C075)。
文摘Polycyclic aromatic hydrocarbons(PAHs),PANHs,and peptoids dust spectral calculations from the interstellar medium(ISM)are important for dust observations and theory.Our goal is to calculate the radiation spectrum of spherical PAHs dust clusters in a vacuum containing ionized and applied in the presence of an electric field.We propose a new simple computational model to calculate the size of three-dimensional spherical dust clusters formed by different initial dust structures.By the Vienna Ab-initio Simulation Package code,the density functional theory with the generalized approximation was used to calculate the electron density gradient and obtain the radiation spectrum of dust.When the radius of spherical dust clusters is~[0.009-0.042]μm,the dust radiation spectrum agrees well with the Z=0.02 mMMP stellar spectra,and the PAHs radiation spectrum of NGC 4676 at wavelengths of(0-5]μm and(5-10]μm,respectively.In the ionized state,the N-PAH,C_(10)H_(9)N,2(C_(4)H_(4))^(1+),and peptoids 4(CHON),(C_(8)H_(10)N_(2)O_(5))^(1+)dust clusters at 3.3μm,while the 2(C_(22)H_(21)N_(3)O_(2))^(1+),4(CHON)dust clusters at 5.2μm have obvious peaks.There is a characteristic of part of PAHs and peptoids clusters radiation at the nearinfrared wavelength of 2μm.However,especially after applying an electric field to the dust,the emission spectrum of the dust increases significantly in the radiation wavelength range[3-10]μm.Consequently,the dust clusters of PAHs,PANHs,and peptoids of the radius size~[0.009-0.042]μm are likely to exist in the ISM.
基金Project supported by the National Natural Science Foundation of China(Grant No.62363005)the Jiangxi Provincial Natural Science Foundation(Grant Nos.20161BAB212032 and 20232BAB202034)the Science and Technology Research Project of Jiangxi Provincial Department of Education(Grant Nos.GJJ202602 and GJJ202601)。
文摘This paper examines the bipartite consensus problems for the nonlinear multi-agent systems in Lurie dynamics form with cooperative and competitive communication between different agents. Based on the contraction theory, some new conditions for the nonlinear Lurie multi-agent systems reaching bipartite leaderless consensus and bipartite tracking consensus are presented. Compared with the traditional methods, this approach degrades the dimensions of the conditions, eliminates some restrictions of the system matrix, and extends the range of the nonlinear function. Finally, two numerical examples are provided to illustrate the efficiency of our results.
基金generous support of the Independent Innovation Project for Postgraduates of Central South University No.160171008supported by the National Natural Science Foundation of China,and projects Nos.11803026,U2031204。
文摘We have chosen the Large Scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) code to calculate the coalescence of silicon carbide (SiC),silicon oxide dust (SiO) in the AGB stellar wind.LAMMPS is a classica molecular dynamics simulation code.At the same time,we consider the effect of temperature on the evolution of molecular dynamics.We also calculated the temperature change of non-spherical SiC,SiO dust coalescence.The condensation temperature range of SiC dust in the AGB stellar wind is[300–500]k and[900–1100]k for SiO Finally,the infrared spectrum of SiC was calculated using Gaussian 16 software.The 77SiC,70Si_(3)C_(3),and 121Si_(3)C_(3) models have clear characteristic peaks of infrared spectra responding at 5,8.6,11.3,15,19,and 37μm.
文摘Good self-management can help hemodialysis patients improve their quality of life and survival rate. This article reviews the status quo of self-care ability of maintenance hemodialysis patients, the influencing factors of self-care ability and the intervention measures. To improve the self-care ability and quality of life of patients, coordinated nursing intervention, self-efficacy intervention, psychological intervention and health education were proposed. To provide a reference for the self-management of hemodialysis patients.
基金supported by Natural Science Foundation of China(No.81070622)
文摘We sought to assess the psychological status and diabetes-related distress of Chinese type 1 diabetes patients in Jiangsu province, China. According to the World Health Organization criteria, 42 patients with type 1 diabetes were enrolled in the study and assessed with the Self-Rating Anxiety Scale （SAS）, Self-Rating Depression Scale （SDS） and Diabetes Distress Scale （DDS）. All data were tabulated and statistical analyses were performed. The study summarized cases of 42 patients with type 1 diabetes, including 17 males and 25 females with a mean age of 23- 12 years and a mean duration of diabetes of 7_ 6 years. Compared to the Chinese normative data, the SAS standard score was significantly higher, whereas SDS standard score had no statistical significance. The SAS standard score was most highly correlated with diabetes duration （y = 0.547, P = 0.011）. Additionally, 19.5% of the patients had moderate or even severe diabetes-related distress and 21.4% had moderate or even severe emo- tional burden while 26.2% had regimen-related distress. Multiple stepwise regression analysis showed that the mean correlation between DDS and the four domains was high, particularly the emotional burden domain （esti- mated D = 0.363, P 〈 0.001） and regimen-related distress domain （estimated 13 = 0.356, P 〈 0.001）. The correlation between SAS and DDS was positive （estimated 13 = 0.039, P = 0.027）. In conclusion, the results showed the im- portance of psychological aspects in Chinese individuals with type 1 diabetes. Screening and treatment of psycho- logical aspects may result in better adherence and increased quality of life for patients with diabetes.
