Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Chiping Chen"'
Autor:
Dan Sun, Chiping Chen
Publikováno v:
PLoS ONE, Vol 19, Iss 4, p e0301025 (2024)
Smart cities improve services for businesses, among many other benefits. A comprehensive understanding and effective utilization of these advantages is crucial for promoting business development. Using panel data from Chinese listed companies (2010-2
Externí odkaz:
https://doaj.org/article/fdd2ac84a4d7472a83bca3ed2c45a9bc
Autor:
Haofei Wei, Chiping Chen
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 2, p 024201 (2011)
Charged-particle motion is studied in the self-electric and self-magnetic fields of a well-matched, intense charged-particle beam and an applied periodic solenoidal magnetic focusing field. The beam is assumed to be in a state of adiabatic thermal eq
Externí odkaz:
https://doaj.org/article/f1d22aa2fa0347aebf13480eb97d8654
Autor:
Jing Zhou, Chiping Chen
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 9, Iss 10, p 104201 (2006)
A Vlasov equilibrium of the Kapchinskij-Vladimirskij form is obtained for a periodically twisted ellipse-shaped charged-particle beam in a nonaxisymmetric periodic magnetic focusing field. The single-particle Hamiltonian dynamics is analyzed self-con
Externí odkaz:
https://doaj.org/article/f78a390e854441c78303d15b3033caaf
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 9, Iss 3, p 034401 (2006)
It is shown that there exists an exact paraxial cold-fluid equilibrium of a high-intensity, space-charge-dominated charged-particle beam with a periodically twisted elliptic cross section in a nonaxisymmetric periodic magnetic field. Generalized enve
Externí odkaz:
https://doaj.org/article/2f2df8c5fd75400db90d487475b3715b
Autor:
Ronak Bhatt, Chiping Chen
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 8, Iss 1, p 014201 (2005)
A theory of nonrelativistic, laminar, elliptic-beam formation is presented. The beam is shown to have the one-dimensional Child-Langmuir flow form. An analytic expression for the electrostatic potential outside the beam is derived. Equipotentials cor
Externí odkaz:
https://doaj.org/article/37bd1b672c434819950a12f3115e943e
Autor:
Mark Hess, Chiping Chen
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 7, Iss 9, p 092002 (2004)
We derive the space-charge limit for a train of periodic finite-size charged bunches which are slightly displaced from the axis of a circular, perfectly conducting pipe. The general calculation assumes that the bunches, while periodic, may have arbit
Externí odkaz:
https://doaj.org/article/377f0d72771a4069a2057184de2326f1
Three-dimensional theory and simulation of nonrelativistic elliptic electron and Ion beam generation
Publikováno v:
IEEE Transactions on Plasma Science. 34:187-193
Summary form only given. A theory of non-relativistic, laminar, space-charge-limited, ellipse-shaped charged-particle beam formation is presented. In the elliptic diode, electrons or ions are accelerated by a static voltage differential and transvers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c6981d0e73a79efcaf19a12f0fa7bcf
https://doi.org/10.1109/tps.2006.872162
https://doi.org/10.1109/tps.2006.872162
Autor:
Jing Zhou, Chiping Chen
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 544:492-496
The image-charge effects on an intense charged-particle beam propagating through an alternating-gradient focusing channel with a small aperture, circular, perfectly conducting pipe are studied using a test-particle model. For a well-matched elliptica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f02b30691b85122b36fb67b1bc22c6e1
https://doi.org/10.1016/j.nima.2005.03.010
https://doi.org/10.1016/j.nima.2005.03.010
Publikováno v:
Physics of Plasmas. 10:4203-4206
It is shown with a test-particle model that image-charge effects induce a new mechanism for chaotic particle motion and halo formation in an intense charged-particle beam propagating through an alternating-gradient focusing channel with a small apert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::217dad62e71000d5d4e2a25daec2b425
https://doi.org/10.1063/1.1622388
https://doi.org/10.1063/1.1622388
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The envelope oscillations of a cold-fluid corkscrewing elliptic beam in a uniform-focusing magnetic field are studied. In particular, by linearizing the generalized beam envelope equations, the eigenmodes of small-amplitude envelope oscillations are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb1994aab9792c04277167e91cd6579a
https://doi.org/10.1109/tps.2003.815819
https://doi.org/10.1109/tps.2003.815819