Elk are seen at the Tian’ezhou National Nature Reserve for Elk in Shishou,Hubei Province,on 27 November 2025.The reserve’s elk population has risen from just 64 in the 1990s to more than 4,500 today.
E-commerce has transformed Caoxian into a hub of traditional Chinese attire.STEPPING inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu(traditional clothing),it feels less like a clothing ...E-commerce has transformed Caoxian into a hub of traditional Chinese attire.STEPPING inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu(traditional clothing),it feels less like a clothing warehouse and more like a time capsule.Thousands of intricately embroidered garments line the racks-from elegant horse-face skirts to modernised editions of traditional Chinese clothing.展开更多
How Chinese experience is helping a Ugandan youth to reimagine rural development A 2-acre(0.8 hectare)organic farm in east Uganda is emerging as an unlikely testing ground for climate-resilient agriculture,youth entre...How Chinese experience is helping a Ugandan youth to reimagine rural development A 2-acre(0.8 hectare)organic farm in east Uganda is emerging as an unlikely testing ground for climate-resilient agriculture,youth entrepreneurship and South-South knowledge exchange.展开更多
This eastern province sets an example in rural revitalization through green development.THE Green Rural Revival Program is an innovative initiative launched by east China’s Zhejiang Pro-vince.It aims to promote compr...This eastern province sets an example in rural revitalization through green development.THE Green Rural Revival Program is an innovative initiative launched by east China’s Zhejiang Pro-vince.It aims to promote comprehensive rural revitalization by focusing on environmental conservation and sustainable development.展开更多
In September 2024,Constellation Energy of Baltimore,MD,USA,owner and operator of the Three Mile Island(TMI)nuclear power plant near Middletown,PA,USA,announced that it would reopen the plant’s recently shuttered Unit...In September 2024,Constellation Energy of Baltimore,MD,USA,owner and operator of the Three Mile Island(TMI)nuclear power plant near Middletown,PA,USA,announced that it would reopen the plant’s recently shuttered Unit 1 reactor to provide electricity for data centers owned by tech giant Microsoft(Redmond,WA,USA)[1-3].展开更多
When one steps inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu,it feels less like a clothing warehouse and more like a time capsule.Thousands of intricately embroidered garments line th...When one steps inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu,it feels less like a clothing warehouse and more like a time capsule.Thousands of intricately embroidered garments line the racks-from elegant horse-face skirts to modernised editions of traditional Chinese clothing.展开更多
Henry Killam Murphy,an American architect in the 20th century(1877—1954),advocated the idea of adaptive architecture and the traditional renaissance design method,and believed that different countries and regions sho...Henry Killam Murphy,an American architect in the 20th century(1877—1954),advocated the idea of adaptive architecture and the traditional renaissance design method,and believed that different countries and regions should have their own architectural art.He recognized and appreciated traditional Chinese architecture and used it in Chinese architectural design.Based on Henry Killam Murphy’s design of Tsinghua University,Ginling College and Beijing Yenching University in China from 1914 to 1935,this paper discussed and probed into the construction of Murphy’s creation concept and technique,and the selection of the Architectural History of China and Yang Bingde’s Blend of Chinese&Western Architectural Culture in Chinese Modern History,and also compared to Murphy and Chinese architects of the 20th century,so as to demonstrate different design attitudes of Chinese traditional architectural culture and the western architectural culture during the fusion,and Henry Killam Murphy’s impact and far-reaching significance on China’s modern campus planning.展开更多
We develop generalized coherent states for a class of nonlinear oscillators with position-dependent effective mass in the context of the Gazeau–Klauder formalism and discuss some of their properties. In order to inve...We develop generalized coherent states for a class of nonlinear oscillators with position-dependent effective mass in the context of the Gazeau–Klauder formalism and discuss some of their properties. In order to investigate the temporal evolution we first explore the statistical properties by means of weighting distribution and the Mandel parameter. It is found that the temporal evolution of the coherent states may exhibit the phenomena of quantum revivals and fractional revivals for a particular choice of position-dependent mass oscillator.展开更多
The time evolution of system in two photon Jaynes Cummings (J C) model without rotating waves approximation (RWA) is obtained by using the theory of ordinary differential equations. Based on the evolution, the mean ...The time evolution of system in two photon Jaynes Cummings (J C) model without rotating waves approximation (RWA) is obtained by using the theory of ordinary differential equations. Based on the evolution, the mean value of the atom inversion operator 〈 S 3(t)〉 is gi ven. The influence of the “counter rotating term” on the collapse and revival phenomenon is discussed from the comparison between the cases with RWA and without RWA. It shows that the influence of the virtual photon field makes the quantum fluctuations appear on the collapse and revival phenomenon.展开更多
Position-dependent-mass systems are of great importance in many physical situations,such as the transport of charge carriers in semiconductors with non-uniform composition and in the theory of many-body interactions i...Position-dependent-mass systems are of great importance in many physical situations,such as the transport of charge carriers in semiconductors with non-uniform composition and in the theory of many-body interactions in condensed matter.Here we investigate,numerically and analytically,the phenomenon of fractional revivals in such systems,which is a generic characteristic manifested by the wave-packet evolution in bounded Hamiltonian systems.Identifying the fractional revivals using specific probes is an important task in the theory of quantum measurement and sensing.We numerically simulate the temporal evolution of probability density and information entropy density,which manifest self-similarly recurring interference patterns,namely,quantum carpets.Our numerical results show that the quantum carpets not only serve as an effective probe for recognizing the fractional revivals of various order but they efficiently describe the effect of spatially-varying mass on the structure of fractional revivals,which is manifested as a symmetry breaking in their designs.展开更多
The atomic inversion dynamics in the mode-mode competing system is studied bymeans of fully quantum theory. A general solution to the Schroedinger equation of this system isobtained. The influence of the relative comp...The atomic inversion dynamics in the mode-mode competing system is studied bymeans of fully quantum theory. A general solution to the Schroedinger equation of this system isobtained. The influence of the relative competing strength between the atom and the two-mode Geld onthe atomic inversion is disccussed. We show that the presence of the mode-mode competition canresult in periodical collapses-revivals of the atomic inversion.展开更多
Rural areas in the K?odzko Region were subject to a long-term depopulation,marginalization,and long-lasting socio-economic decline since the 19th century.In recent years,however,the study area has been subject to a sh...Rural areas in the K?odzko Region were subject to a long-term depopulation,marginalization,and long-lasting socio-economic decline since the 19th century.In recent years,however,the study area has been subject to a shift in socio-economic trends that show rural revival.The main goal of the research is to assess the actual role of tourism in socio-economic revival of rural areas in the K?odzko Region.To determine the dynamics of the tourism function development,statistical data were used and an inventory of tourism beds in accommodation facilities was conducted.The results show that there was a substantial development of the tourism function in the study area and its most intense scale was noted in the depopulating villages,as evidenced by the increase in the numbers of tourism facilities and numbers of tourism beds.Therefore,it can be concluded that the development of tourism contributed to the limitation of negative socioeconomic processes in the area and,in the case of some villages,even to the reversal of these trends,which might testify to the rural revival.Moreover,the improvement of the socio-economic situation is visible also in the villages that do not have significant tourist values but are in the neighbourhood of tourism hotspots.This observation might be important for forecasting future development and planning of rural areas.展开更多
文摘Elk are seen at the Tian’ezhou National Nature Reserve for Elk in Shishou,Hubei Province,on 27 November 2025.The reserve’s elk population has risen from just 64 in the 1990s to more than 4,500 today.
文摘E-commerce has transformed Caoxian into a hub of traditional Chinese attire.STEPPING inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu(traditional clothing),it feels less like a clothing warehouse and more like a time capsule.Thousands of intricately embroidered garments line the racks-from elegant horse-face skirts to modernised editions of traditional Chinese clothing.
文摘How Chinese experience is helping a Ugandan youth to reimagine rural development A 2-acre(0.8 hectare)organic farm in east Uganda is emerging as an unlikely testing ground for climate-resilient agriculture,youth entrepreneurship and South-South knowledge exchange.
文摘This eastern province sets an example in rural revitalization through green development.THE Green Rural Revival Program is an innovative initiative launched by east China’s Zhejiang Pro-vince.It aims to promote comprehensive rural revitalization by focusing on environmental conservation and sustainable development.
文摘In September 2024,Constellation Energy of Baltimore,MD,USA,owner and operator of the Three Mile Island(TMI)nuclear power plant near Middletown,PA,USA,announced that it would reopen the plant’s recently shuttered Unit 1 reactor to provide electricity for data centers owned by tech giant Microsoft(Redmond,WA,USA)[1-3].
文摘When one steps inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu,it feels less like a clothing warehouse and more like a time capsule.Thousands of intricately embroidered garments line the racks-from elegant horse-face skirts to modernised editions of traditional Chinese clothing.
文摘Henry Killam Murphy,an American architect in the 20th century(1877—1954),advocated the idea of adaptive architecture and the traditional renaissance design method,and believed that different countries and regions should have their own architectural art.He recognized and appreciated traditional Chinese architecture and used it in Chinese architectural design.Based on Henry Killam Murphy’s design of Tsinghua University,Ginling College and Beijing Yenching University in China from 1914 to 1935,this paper discussed and probed into the construction of Murphy’s creation concept and technique,and the selection of the Architectural History of China and Yang Bingde’s Blend of Chinese&Western Architectural Culture in Chinese Modern History,and also compared to Murphy and Chinese architects of the 20th century,so as to demonstrate different design attitudes of Chinese traditional architectural culture and the western architectural culture during the fusion,and Henry Killam Murphy’s impact and far-reaching significance on China’s modern campus planning.
文摘We develop generalized coherent states for a class of nonlinear oscillators with position-dependent effective mass in the context of the Gazeau–Klauder formalism and discuss some of their properties. In order to investigate the temporal evolution we first explore the statistical properties by means of weighting distribution and the Mandel parameter. It is found that the temporal evolution of the coherent states may exhibit the phenomena of quantum revivals and fractional revivals for a particular choice of position-dependent mass oscillator.
文摘The time evolution of system in two photon Jaynes Cummings (J C) model without rotating waves approximation (RWA) is obtained by using the theory of ordinary differential equations. Based on the evolution, the mean value of the atom inversion operator 〈 S 3(t)〉 is gi ven. The influence of the “counter rotating term” on the collapse and revival phenomenon is discussed from the comparison between the cases with RWA and without RWA. It shows that the influence of the virtual photon field makes the quantum fluctuations appear on the collapse and revival phenomenon.
基金Financial support from Higher Education Commission(HEC)of Pakistan,under Grant No.20-14808/NRPU/R&D/HEC/20212021
文摘Position-dependent-mass systems are of great importance in many physical situations,such as the transport of charge carriers in semiconductors with non-uniform composition and in the theory of many-body interactions in condensed matter.Here we investigate,numerically and analytically,the phenomenon of fractional revivals in such systems,which is a generic characteristic manifested by the wave-packet evolution in bounded Hamiltonian systems.Identifying the fractional revivals using specific probes is an important task in the theory of quantum measurement and sensing.We numerically simulate the temporal evolution of probability density and information entropy density,which manifest self-similarly recurring interference patterns,namely,quantum carpets.Our numerical results show that the quantum carpets not only serve as an effective probe for recognizing the fractional revivals of various order but they efficiently describe the effect of spatially-varying mass on the structure of fractional revivals,which is manifested as a symmetry breaking in their designs.
文摘The atomic inversion dynamics in the mode-mode competing system is studied bymeans of fully quantum theory. A general solution to the Schroedinger equation of this system isobtained. The influence of the relative competing strength between the atom and the two-mode Geld onthe atomic inversion is disccussed. We show that the presence of the mode-mode competition canresult in periodical collapses-revivals of the atomic inversion.
基金financed by the National Science Centre in Poland by project no.2017/27/B/HS4/01220。
文摘Rural areas in the K?odzko Region were subject to a long-term depopulation,marginalization,and long-lasting socio-economic decline since the 19th century.In recent years,however,the study area has been subject to a shift in socio-economic trends that show rural revival.The main goal of the research is to assess the actual role of tourism in socio-economic revival of rural areas in the K?odzko Region.To determine the dynamics of the tourism function development,statistical data were used and an inventory of tourism beds in accommodation facilities was conducted.The results show that there was a substantial development of the tourism function in the study area and its most intense scale was noted in the depopulating villages,as evidenced by the increase in the numbers of tourism facilities and numbers of tourism beds.Therefore,it can be concluded that the development of tourism contributed to the limitation of negative socioeconomic processes in the area and,in the case of some villages,even to the reversal of these trends,which might testify to the rural revival.Moreover,the improvement of the socio-economic situation is visible also in the villages that do not have significant tourist values but are in the neighbourhood of tourism hotspots.This observation might be important for forecasting future development and planning of rural areas.
