China has embarked on an extensive and sustained endeavor to harness its coal resources for a substantial period.However,the depletion of coal reserves in mining regions has necessitated the closure or abandonment of ...China has embarked on an extensive and sustained endeavor to harness its coal resources for a substantial period.However,the depletion of coal reserves in mining regions has necessitated the closure or abandonment of numerous mines,resulting in a marked increase in the number of such facilities.Parallel to this,China is vigorously advancing the development of a novel energy power system,aimed at transitioning the power sector from a high-carbon,fossil fuel-dependent paradigm to a low-carbon,clean energy footing.展开更多
We study theoretically the effect of second-order coupling(SOC)on the tunneling dynamics in a planar four-well system with only one well periodically modulated.We find that SOC between next-nearest neighboring wells f...We study theoretically the effect of second-order coupling(SOC)on the tunneling dynamics in a planar four-well system with only one well periodically modulated.We find that SOC between next-nearest neighboring wells facilitates localization.Due to SOC,the suppression of tunneling occurs over a finite range of parameters,in stark contrast to the normal coherent destruction of tunneling in the nearest-neighbor tight-binding approximation.This counter-intuitive phenomenon of SOC-enhanced localization can be attributed to the existence of a localized Floquet state rather than the degeneracy of quasi-energy levels in such a system.展开更多
A series of samples Ba_(1+x)Nd_(1-x)FeTiO_(6)(x=0.0-0.5)were prepared by solid state reactions and characterized by x-ray diffraction and Mössbauer spectroscopy.All samples crystallized in cubic structure.A rando...A series of samples Ba_(1+x)Nd_(1-x)FeTiO_(6)(x=0.0-0.5)were prepared by solid state reactions and characterized by x-ray diffraction and Mössbauer spectroscopy.All samples crystallized in cubic structure.A random distribution of Fe and Ti ions at octahedral sites was shown.^(57)Fe Mössbauer spectra of the samples consisted of a quadrupole doublet.The quadrupole splittings obtained by fitting the experimental data were larger than 0.5mm/s,indicating local structure distortions in these cubic phases.The relationship between quadrupole splitting and dopant content x of Ba_(1+x)Nd_(1-x)FeTiO_(6) is discussed.展开更多
Since it was suggested at the end of the 19th century that Thai people originally came from Southern China,“Dali and Sukhothai”has become one of the most controversial topics of Southeast Asian studies.This paper ai...Since it was suggested at the end of the 19th century that Thai people originally came from Southern China,“Dali and Sukhothai”has become one of the most controversial topics of Southeast Asian studies.This paper aims at showing the existence of a transcultural phenomenon between the arts and cultures of Dali and Sukhothai.In order to exam in this,this paper confronts two propositions:early Tai people establishing the Nanzhao Kingdom in Dali,and the move to the South of the Tai people.The paper focuses on three causes of the transcultural art of Dali and Sukhothai:(1)South East Asia as a cultural entity,(2)the geo-civilisational influence,(3)the trans-border ethnic migrations.展开更多
This paper is based on the Indian Buddhism arts, especially Hinayana, and it gives a comparison between the mural paintings in Wat Khongkharam and the Buddha images in Dali Kingdom of China. This paper also aims at an...This paper is based on the Indian Buddhism arts, especially Hinayana, and it gives a comparison between the mural paintings in Wat Khongkharam and the Buddha images in Dali Kingdom of China. This paper also aims at analysing the origin, the development, and the major premises of artists in Buddhism Arts. Furthermore, I would like to collect related materials and give a recreation as well.展开更多
文摘China has embarked on an extensive and sustained endeavor to harness its coal resources for a substantial period.However,the depletion of coal reserves in mining regions has necessitated the closure or abandonment of numerous mines,resulting in a marked increase in the number of such facilities.Parallel to this,China is vigorously advancing the development of a novel energy power system,aimed at transitioning the power sector from a high-carbon,fossil fuel-dependent paradigm to a low-carbon,clean energy footing.
基金Supported by the National Natural Science Foundation of China under Grant Nos 10965001 and 11165009the Natural Science Foundation of Jiangxi Province under Grant 2010GQW0033+3 种基金the Program for New Century Excellent Talents in University of Ministry of Education of China(NCET-13-0836)the Jiangxi Young Scientists Training Plan under Grant No 20112BCB23024the Key Subject of Atomic and Molecular Physics in Jiangxi Province,Zhengzhou Municipal Science and Technology Development Plan Project(20120409)Huanghe Science and Technology College Natural Science Research Project(KYZR201208).
文摘We study theoretically the effect of second-order coupling(SOC)on the tunneling dynamics in a planar four-well system with only one well periodically modulated.We find that SOC between next-nearest neighboring wells facilitates localization.Due to SOC,the suppression of tunneling occurs over a finite range of parameters,in stark contrast to the normal coherent destruction of tunneling in the nearest-neighbor tight-binding approximation.This counter-intuitive phenomenon of SOC-enhanced localization can be attributed to the existence of a localized Floquet state rather than the degeneracy of quasi-energy levels in such a system.
文摘A series of samples Ba_(1+x)Nd_(1-x)FeTiO_(6)(x=0.0-0.5)were prepared by solid state reactions and characterized by x-ray diffraction and Mössbauer spectroscopy.All samples crystallized in cubic structure.A random distribution of Fe and Ti ions at octahedral sites was shown.^(57)Fe Mössbauer spectra of the samples consisted of a quadrupole doublet.The quadrupole splittings obtained by fitting the experimental data were larger than 0.5mm/s,indicating local structure distortions in these cubic phases.The relationship between quadrupole splitting and dopant content x of Ba_(1+x)Nd_(1-x)FeTiO_(6) is discussed.
文摘Since it was suggested at the end of the 19th century that Thai people originally came from Southern China,“Dali and Sukhothai”has become one of the most controversial topics of Southeast Asian studies.This paper aims at showing the existence of a transcultural phenomenon between the arts and cultures of Dali and Sukhothai.In order to exam in this,this paper confronts two propositions:early Tai people establishing the Nanzhao Kingdom in Dali,and the move to the South of the Tai people.The paper focuses on three causes of the transcultural art of Dali and Sukhothai:(1)South East Asia as a cultural entity,(2)the geo-civilisational influence,(3)the trans-border ethnic migrations.
文摘This paper is based on the Indian Buddhism arts, especially Hinayana, and it gives a comparison between the mural paintings in Wat Khongkharam and the Buddha images in Dali Kingdom of China. This paper also aims at analysing the origin, the development, and the major premises of artists in Buddhism Arts. Furthermore, I would like to collect related materials and give a recreation as well.
