We consider an entangled Ising-XY Z diamond chain structure. Quantum correlations for this model are inves- tigated by using quantum discord and trace distance discord. Quantum correlations are obtained for different ...We consider an entangled Ising-XY Z diamond chain structure. Quantum correlations for this model are inves- tigated by using quantum discord and trace distance discord. Quantum correlations are obtained for different values of the anisotropy parameter, magnetic field and temperature. By comparison between quantum correlations, we show that the trace distance discord is always larger than quantum discord. Finally, some novel effects such as increasing the quantum correlations with temperature and constructive role of anisotropy parameter, which may play to the quantum correlations, are observed.展开更多
The paper attempts to examine the relationships botween industrial organizations and their environments from an essentially spatial perspective and organizational theory, and inteqrate the generalizations derived from...The paper attempts to examine the relationships botween industrial organizations and their environments from an essentially spatial perspective and organizational theory, and inteqrate the generalizations derived from organizational theory and industrial geography o identify spatial linkage pattems created by the enterprises, both in the aggregate and individually These issues are organized around three elements. From the many organizational and environmental factors which might influence the spatial linkage patterns, six have been selected for analysis. These factors were highly correlated with value or volume of spatial linkages. Changes of spatial linkage pattems over time were analyzed based on a representative sample of the Nanjing Automotive Industrial Corporation, and findings with case studies were illustrated.展开更多
China is actively developing passive houses to improve energy efficiency and reduce primary energy use.These buildings have low actual load characteristics,resulting in a smaller air conditioning terminal heating capa...China is actively developing passive houses to improve energy efficiency and reduce primary energy use.These buildings have low actual load characteristics,resulting in a smaller air conditioning terminal heating capacity.However,owing to this limited heating capacity,the air conditioning terminal provides modest indoor air regulation.In practice,occupants of passive houses often open windows for ventilation in winter,resulting in an indoor temperature that is lower than the set value,and it takes a long time for the temperature to return to the desired level.There are few studies that have investigated this issue.Two possible solutions to this issue are proposed:first,altering the external wall structure can enhance the thermal response rate,reducing the time needed for temperature recovery.Secondly,limiting the window-opening area can minimize heat loss during ventilation,thereby maintaining a reasonable indoor temperature.Notably,this may inconvenience occupants.Taking a passive house in Qinghai as a case study,this study discusses the influence of window-opening behavior on the indoor thermal environment.Simulations were conducted to study the window-opening behavior considering different window-opening areas and wall structures.Three different wall structures were considered:internal insulation combined with external insulation(IAE),sandwich insulation combined with external insulation(SAE),and external insulation structures.The results indicate that the IAE and SAE structures cannot effectively improve the indoor thermal environment after opening a window.Overall,changing the wall structure does not reduce the time required to restore room temperature.However,by limiting the opening area of the window,the room temperature can be effectively controlled.Under the given window opening ratio,the room temperature can be stabilized above 18◦C.This study offers a practical method for controlling and enhancing the indoor thermal environment,which is applicable to the construction and development of passive houses.展开更多
基金Supported by the Azerbaijan Shahid Madani University
文摘We consider an entangled Ising-XY Z diamond chain structure. Quantum correlations for this model are inves- tigated by using quantum discord and trace distance discord. Quantum correlations are obtained for different values of the anisotropy parameter, magnetic field and temperature. By comparison between quantum correlations, we show that the trace distance discord is always larger than quantum discord. Finally, some novel effects such as increasing the quantum correlations with temperature and constructive role of anisotropy parameter, which may play to the quantum correlations, are observed.
文摘The paper attempts to examine the relationships botween industrial organizations and their environments from an essentially spatial perspective and organizational theory, and inteqrate the generalizations derived from organizational theory and industrial geography o identify spatial linkage pattems created by the enterprises, both in the aggregate and individually These issues are organized around three elements. From the many organizational and environmental factors which might influence the spatial linkage patterns, six have been selected for analysis. These factors were highly correlated with value or volume of spatial linkages. Changes of spatial linkage pattems over time were analyzed based on a representative sample of the Nanjing Automotive Industrial Corporation, and findings with case studies were illustrated.
基金supported by the Local Science and Technology Development Fund Project:Research on Low Carbon Transformation Methods for Residen-tial Buildings(XZ202301YD0009C).
文摘China is actively developing passive houses to improve energy efficiency and reduce primary energy use.These buildings have low actual load characteristics,resulting in a smaller air conditioning terminal heating capacity.However,owing to this limited heating capacity,the air conditioning terminal provides modest indoor air regulation.In practice,occupants of passive houses often open windows for ventilation in winter,resulting in an indoor temperature that is lower than the set value,and it takes a long time for the temperature to return to the desired level.There are few studies that have investigated this issue.Two possible solutions to this issue are proposed:first,altering the external wall structure can enhance the thermal response rate,reducing the time needed for temperature recovery.Secondly,limiting the window-opening area can minimize heat loss during ventilation,thereby maintaining a reasonable indoor temperature.Notably,this may inconvenience occupants.Taking a passive house in Qinghai as a case study,this study discusses the influence of window-opening behavior on the indoor thermal environment.Simulations were conducted to study the window-opening behavior considering different window-opening areas and wall structures.Three different wall structures were considered:internal insulation combined with external insulation(IAE),sandwich insulation combined with external insulation(SAE),and external insulation structures.The results indicate that the IAE and SAE structures cannot effectively improve the indoor thermal environment after opening a window.Overall,changing the wall structure does not reduce the time required to restore room temperature.However,by limiting the opening area of the window,the room temperature can be effectively controlled.Under the given window opening ratio,the room temperature can be stabilized above 18◦C.This study offers a practical method for controlling and enhancing the indoor thermal environment,which is applicable to the construction and development of passive houses.
