The problem of an adequate description of the transport processes in Bose-Einstein condensates (CBE), including space-temporal evolution of CBE in a gravitational field is considered. The full nonlocal system for the ...The problem of an adequate description of the transport processes in Bose-Einstein condensates (CBE), including space-temporal evolution of CBE in a gravitational field is considered. The full nonlocal system for the CBE evolution is delivered including particular case and analytical solutions. We show (analytically) that a black hole can evolve in the Bose-Einstein condensate (CBE) regime. At the same time, there are modes in which black hole flickering occurs. Quantization of the black holes flickering is discovered. The corresponding nonlocal hydrodynamic equations indicated for fermions gas.展开更多
The problem of an adequate description of the wave processes in Bose-Einstein condensates (CBE), including space-temporal evolution of CBE in the electron CBE condensate in the self-consistent electrical field and CBE...The problem of an adequate description of the wave processes in Bose-Einstein condensates (CBE), including space-temporal evolution of CBE in the electron CBE condensate in the self-consistent electrical field and CBE atomic condensate in the self-consistent gravitational field is considered. The complete nonlocal system for the CBE evolution is delivered including particular case and analytical solutions.展开更多
A time series model is used in this paper to describe the progress of circulating direct condensation heat recovery of the compound condensing process (CCP) which is made of two water cooling condensing processes in s...A time series model is used in this paper to describe the progress of circulating direct condensation heat recovery of the compound condensing process (CCP) which is made of two water cooling condensing processes in series for a centrifugal chiller in the paper. A finite-time thermodynamics method is used to set up the time series simulation model. As a result, an upper bound of recoverable condensation heat for the compound condensing process is obtained which is in good agreement with experimental result. And the result is valuable and useful to optimization design of condensing heat recovery.展开更多
Shale condensate reservoirs,as a significant unconventional resource,have been gaining increasing interest in recent times.Researchers have developed a variety of models to analyze interfacial effects in nanopores,inc...Shale condensate reservoirs,as a significant unconventional resource,have been gaining increasing interest in recent times.Researchers have developed a variety of models to analyze interfacial effects in nanopores,including capillary condensation,capillarity,and adsorption effects.However,there are few studies on these interface effects.Therefore,we developed a phase equilibrium model considering the multi-interface effects in nanopores.The model is first built by modifying the Peng Robinson-equation of state(PR-EOS).The gas adsorption in vacant solution(FHVSM)model is utilized to describe adsorption.The calculated results show good agreements with experimental data of this model are more consistent with the adsorption characteristics of mixed gases in the porous media.After that,the phase behavior of a typical shale condensate gas is analyzed.Results indicate that the multi-interface effects will result in incremental dew-point pressure and retrograde condensate saturation.Moreover,the injection of CO_(2) and N2 was also studied,illustrating that CO_(2) reduces the dew-point pressure,while N2 increases the dew-point pressure.Both CO_(2) and N2 reduce the retrograde condensate saturation.Finally,the change in the adsorption of mixed gases was also evaluated,which shows a decreasing trend as the reservoir pressure depleted.This work provides deeper understandings in the phase behavior of hydrocarbons in the shale condensate gas reservoirs.展开更多
Many genes associated with reproduction show rapid evolution across diverse animal groups, a result commonly due to adaptive evolution driven by positive selection （Swanson and Vacquier, 2002）. Different theories ha...Many genes associated with reproduction show rapid evolution across diverse animal groups, a result commonly due to adaptive evolution driven by positive selection （Swanson and Vacquier, 2002）. Different theories have been proposed to explain the elevated rates of evolution （Swanson and Vacquier, 2002）, including sperm competition, where sperm compete to fertilize eggs leading to the proteins in the sper- matozoa adaptively evolving to increase their ability to fertilize eggs; sexual conflict, where the egg experiences a loss of fitness when sperm are too abundant; sexual selection, where eggs bind sperm carrying adaptive alleles （Palumbi, 1999）; and cryptic female choice （reviewed in Swanson and Vacquier, 2002）.展开更多
文摘The problem of an adequate description of the transport processes in Bose-Einstein condensates (CBE), including space-temporal evolution of CBE in a gravitational field is considered. The full nonlocal system for the CBE evolution is delivered including particular case and analytical solutions. We show (analytically) that a black hole can evolve in the Bose-Einstein condensate (CBE) regime. At the same time, there are modes in which black hole flickering occurs. Quantization of the black holes flickering is discovered. The corresponding nonlocal hydrodynamic equations indicated for fermions gas.
文摘The problem of an adequate description of the wave processes in Bose-Einstein condensates (CBE), including space-temporal evolution of CBE in the electron CBE condensate in the self-consistent electrical field and CBE atomic condensate in the self-consistent gravitational field is considered. The complete nonlocal system for the CBE evolution is delivered including particular case and analytical solutions.
文摘A time series model is used in this paper to describe the progress of circulating direct condensation heat recovery of the compound condensing process (CCP) which is made of two water cooling condensing processes in series for a centrifugal chiller in the paper. A finite-time thermodynamics method is used to set up the time series simulation model. As a result, an upper bound of recoverable condensation heat for the compound condensing process is obtained which is in good agreement with experimental result. And the result is valuable and useful to optimization design of condensing heat recovery.
基金supported by National Natural Science Foundation of China(52474052,52074248)Young Elite Scientists Sponsorship Program by BAST(BYESS2023414).
文摘Shale condensate reservoirs,as a significant unconventional resource,have been gaining increasing interest in recent times.Researchers have developed a variety of models to analyze interfacial effects in nanopores,including capillary condensation,capillarity,and adsorption effects.However,there are few studies on these interface effects.Therefore,we developed a phase equilibrium model considering the multi-interface effects in nanopores.The model is first built by modifying the Peng Robinson-equation of state(PR-EOS).The gas adsorption in vacant solution(FHVSM)model is utilized to describe adsorption.The calculated results show good agreements with experimental data of this model are more consistent with the adsorption characteristics of mixed gases in the porous media.After that,the phase behavior of a typical shale condensate gas is analyzed.Results indicate that the multi-interface effects will result in incremental dew-point pressure and retrograde condensate saturation.Moreover,the injection of CO_(2) and N2 was also studied,illustrating that CO_(2) reduces the dew-point pressure,while N2 increases the dew-point pressure.Both CO_(2) and N2 reduce the retrograde condensate saturation.Finally,the change in the adsorption of mixed gases was also evaluated,which shows a decreasing trend as the reservoir pressure depleted.This work provides deeper understandings in the phase behavior of hydrocarbons in the shale condensate gas reservoirs.
基金supported by the grant from the National Natural Science Foundation of China(No.31061160189)
文摘Many genes associated with reproduction show rapid evolution across diverse animal groups, a result commonly due to adaptive evolution driven by positive selection （Swanson and Vacquier, 2002）. Different theories have been proposed to explain the elevated rates of evolution （Swanson and Vacquier, 2002）, including sperm competition, where sperm compete to fertilize eggs leading to the proteins in the sper- matozoa adaptively evolving to increase their ability to fertilize eggs; sexual conflict, where the egg experiences a loss of fitness when sperm are too abundant; sexual selection, where eggs bind sperm carrying adaptive alleles （Palumbi, 1999）; and cryptic female choice （reviewed in Swanson and Vacquier, 2002）.
