|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Lessons from the Mainland of China’s Epidemic Experience in the First Phase about the Growth Rules of Infected and Recovered Cases of COVID-19 Worldwide显示文摘The first phase of the novel coronavirus disease(COVID-19)that emerged at the end of 2019 has been brought under control in the mainland of China in March,while it is still spreading globally.When the pandemic will end is a question of great concern.A logistic model that depicts the growth rules of infected and recovered cases in China’s mainland may shed some light on this question.This model well explained the data by 13 April from 31 countries that have been experiencing serious COVID-2019 outbreaks(R2≥0.95).Based on this model,the semi-saturation period(SSP)of infected cases in those countries ranges from 3 March to 18 June.According to the linear relationship between the growth rules for infected and for recovered cases identified from the Chinese data,we predicted that the SSP of the recovered cases outside China ranges from 22 March to 8 July.More importantly,we found a strong positive correlation between the SSP of infected cases and the timing of a government’s response.Finally,this model was also applied to four regions that went through other coronavirus or Ebola virus epidemics(R2≥0.95).There is a negative correlation between the death rate and the logistic growth rate.These findings provide strong evidence for the effectiveness of rapid epidemic control measures in various countries. | Chuanliang Han Yimeng Liu Jiting Tang Yuyao Zhu Carlo Jaeger Saini Yang | 2020 | International Journal of Disaster Risk Science2020，11，4： | 2 |
| 2 | Integrating of metal-organic framework UiO-66-NH2 and cellulose nanofibers mat for high-performance adsorption of dye rose bengal显示文摘UiO-66-NH2 is an efficient material for removing pollutants from wastewater due to its high specific surface area,high porosity and water stability.However,recycling them from wastewater is difficult.In this study,the cellulose nanofibers mat deacetylated from cellulose acetate nanofibers were used to combine with UiO-66-NH_(2)by the method of in-situ growth to remove the toxic dye,rose bengal.Compared to previous work,the prepared composite could not only provide ease of separation of UiO-66-NH_(2)from the water after adsorption but also demonstrate better adsorption capacity(683 mg∙g‒1(T=25°C,pH=3))than that of the simple UiO-66-NH_(2)(309.6 mg∙g^(‒1)(T=25℃,pH=3)).Through the analysis of adsorption kinetics and isotherms,the adsorption for rose bengal is mainly suitable for the pseudo-second-order kinetic model and Freundlich model.Furthermore,the relevant research revealed that the main adsorption mechanism of the composite was electrostatic interaction,hydrogen bonding andπ–πinteraction.Overall,the approach depicts an efficient model for integrating metal-organic frameworks on cellulose nanofibers to improve metal-organic framework recovery performance with potentially broad applications. | Yuyao Han Lei Xia Xupin Zhuang Yuxia Liang | 2022 | Frontiers of Chemical Science and Engineering2022，16，9： | 0 |
| 3 | Influence of positive DC electric field on rime icing on the insulator and its experimental verification in the natural environment显示文摘The electric field imposes a significant effect on ice accretion on the insulator.The impact of an AC electric field on insulator icing in an artificial climate chamber has been addressed.Compared with AC,DC electric field exerts an attraction on supercooled water droplets,which is more detrimental to the power system.Moreover,the icing on energised insulators is rarely studied in the natural environment.In the present research,an electrical,fluid coupled‐field simulation was carried out on the insulator.The force characteristics and motion deviation features of water droplets at different positive DC electric field strengths were studied.On this basis,rime icing on the insulator energised with different positive DC voltages was investigated in the field.Results show that the charged droplet shifts along the electric field line under a positive DC voltage.The deviation degree of the droplet increases with the increment of the voltage and droplet size and decreases with an increase in wind speed.As the voltage rises,the surface roughness,icing amount and icing length of rime ice‐covered insulator increase.Consequently,compared with that without energisation,the local collision coefficient,icing amount and icing length increase by 17.6%,46.4%and 63.9%,respectively,under a 40 kV DC voltage. | Zongyuan Liu Yuyao Hu Xingliang Jiang Lei Chen Mingchen Chi Feiyan Han Chong Zhao | 2023 | High Voltage2023，8，5： | 0 |
| 4 | Ab initio calculation of the ground and first excited states of the lithium dimer显示文摘Based on a high level ab initio calculation which is earned out with the multireference configuration interaction method under the aug-cc-pVXZ(AVXZ)basis sets,X=T,Q,5,the accurate potential energy curves(PECs)of the ground state X^(1)Σ_(g)^(+)and the first excited state A^(1)Σ_(u)^(+)of Li_(2)are constructed.By fitting the ab initio potential energy points with the MurrellSorbie potential function,the analytic potential energy functions(APEFs)are obtained.The molecular bond length at the equilibnum(R_(e)),the potential well depth(D_(e)),and the spectroscopic constants(B_(e),ω_(e),α_(e),andω_(e)χ_(e))for the X^(1)Σ_(g)^(+)state and the A^(1)Σ_(u)^(+)state are deduced from the APEFs.The vibrational energy levels of the two electronic states are obtained by solving the time-independent Schrodmger equation with the Founer gnd Hamiltonian method.All the spectroscopic constants and the vibrational levels agree well with the experimental results.The Franck-Condon factors(FCFs)corresponding to the transitions from the vibrational level(v’=0)of the ground state to the vibrational levels(v'=0-74)of the first excited state have been calculated.The FCF for the vibronic transition of A^(1)Σ_(u)^(+)(v'=0)←X^(1)Σ_(g)^(+)(v’=0)is the strongest.These PECs and corresponding spectroscopic constants provide reliable theoretical references to both the spectroscopic and the molecular dynamic studies of the Li_(2)dimer. | JianJun Qi YuYao Bai QianQian Guo Yong-Chang Han Maksim B Shundalau | 2021 | Communications in Theoretical Physics2021，73，12： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员