Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ping-Fan Yang"'
Publikováno v:
Theoretical and Applied Mechanics Letters, Vol 13, Iss 5, Pp 100470- (2023)
We consider the two-point, two-time (space-time) correlation of passive scalar R(r,τ) in the Kraichnan model under the assumption of homogeneity and isotropy. Using the fine-gird PDF method, we find that R(r,τ) satisfies a diffusion equation with c
Externí odkaz:
https://doaj.org/article/daf313ec54754668b38248858aba9cbb
Publikováno v:
Symmetry, Vol 16, Iss 2, p 175 (2024)
In isotropic turbulence, symmetry of different directions can reduce the number of independent components for velocity gradient tensors. In three-dimensional isotropic turbulence, the independent components under either incompressible or compressible
Externí odkaz:
https://doaj.org/article/d7f658f493e3455b86cdb06fe896a48a
Publikováno v:
New Journal of Physics, Vol 20, Iss 10, p 103035 (2018)
In statistically stationary conditions, the turbulent energy spectrum in a high Reynolds number flow exhibits a k ^−5/3 (Kolmogorov) regime, with a faster decay at larger, dissipative wavenumbers. Here, we investigate how the energy spectrum of a t
Externí odkaz:
https://doaj.org/article/f133d0ca9fbc48a79b509250d2fc3c5e
Publikováno v:
AIP Advances, Vol 5, Iss 7, Pp 077115-077115-7 (2015)
We propose a spin selector based on periodic diluted-magnetic-semiconductor/nonmagnetic-barrier (DMS/NB) superlattices subjected to an external magnetic field. We find that the periodic DMS/NB superlattices can achieve 100% spin filtering over a dram
Externí odkaz:
https://doaj.org/article/e614be287b9543ccbd12a2249728d8ac
Autor:
Ping-Fan Yang, 楊秉凡
95
The working environment of the molecular motor is in nano-scale, using hydrolysis and release processes bring chemically energy transfer to mechanical work, then starting mechanical motion. The molecular motor subjects to thermal fluctuation
The working environment of the molecular motor is in nano-scale, using hydrolysis and release processes bring chemically energy transfer to mechanical work, then starting mechanical motion. The molecular motor subjects to thermal fluctuation
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/50224193219500387253
Autor:
Ping-Fan Yang
Publikováno v:
Physical Review Fluids. 8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed5cbce034023ac8c593ca885207a704
https://doi.org/10.1103/physrevfluids.8.024601
https://doi.org/10.1103/physrevfluids.8.024601
Publikováno v:
Physical Review Fluids. 6
In homogeneous shear flow, turbulence exhibits anisotropic properties affecting all scales of motion at finite Reynolds numbers. Upon releasing the mean shear, the anisotropy characterizing the velocity field decays over a large eddy turnover time. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d11f40d42b9fa5b3629c4a551e9462
https://doi.org/10.1103/physrevfluids.6.044601
https://doi.org/10.1103/physrevfluids.6.044601
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, 2020, 897, ⟨10.1017/jfm.2020.375⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2020, 897, ⟨10.1017/jfm.2020.375⟩
Journal of Fluid Mechanics, 2020, 897, ⟨10.1017/jfm.2020.375⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2020, 897, ⟨10.1017/jfm.2020.375⟩
The perceived velocity gradient tensor (PVGT), constructed from four fluid tracers forming a tetrahedron, provides a natural way to study the structure of velocity fluctuations and its dependence on spatial scales. It generalizes and shares qualitati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32f49281e3daff0af9455176b1b619dc
https://hdl.handle.net/21.11116/0000-0006-ACBB-6
https://hdl.handle.net/21.11116/0000-0006-ACBB-6
Autor:
Ping-Fan Yang, Yong Guo
Publikováno v:
Applied Physics Letters. 108:052402
We investigate the tunneling time (dwell time) in periodic diluted-magnetic-semiconductor/nonmagnetic-barrier (DMS/NB) superlattices subjected to an external magnetic field. It is found that spin-dependent resonant bands form in the spectra of dwell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad5ce2ed5b3d785707261a4f957dfca
https://doi.org/10.1063/1.4941302
https://doi.org/10.1063/1.4941302
Publikováno v:
The Journal of Organic Chemistry. 56:5289-5293
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::079c9ced52b855f3c4df82167853dfb1
https://doi.org/10.1021/jo00018a016
https://doi.org/10.1021/jo00018a016