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This paper uses various mean-field approaches and the Monte
Carlo simulation to calculate asymmetric simple exclusion processes
with particles of arbitrary size in the successive defects system.
In this system, the hopping probability p (p<1) and the size d
of particles are not constant. Through theoretical calculation
and computer simulation, it obtains the exact theoretical results
and finds that the theoretical results are in agreement with
the computer simulation. These results are helpful in analysing the
effect of traffic with different hopping probabilities p and sizes
d of particle. 相似文献
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基于几何覆盖的导航星视场构造算法 总被引:1,自引:0,他引:1
由导航星表构造导航星匹配模式是星图匹配、识别的最关键步骤。为了从根本上能保证星图识别模式的完备性,提出了构造导航星视场的方法。从导航星表中任一颗星开始,依次找到两两角距小于FOV的星,构成1颗星、2颗星…m颗星的全部子集(子集P)。以子集P中心的视轴为基准,取两倍于视场的导航星子集Q(Q包含P)。把Q中的每一颗星投影到星敏感器像平面,形成点列子集Q。视场的构造就可以表述为平面上点集的几何覆盖问题。对每一个子集P来说,先计算其最小覆盖圆,若其半径小于视场在像平面的投影值(R),则计算点列子集Q删除P后的Voronoi图,这样就可求出包含点列子集P的最大空圆;若其半径大于R,则点列子集P为一个导航星视场。给出了由20颗导航星生成的124个视场,并与Monte Carlo 20万次随机生成的视场作了比较。结果证明了该算法是有效的、实用的。 相似文献
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Theoretical investigation of total-asymmetric simple exclusion processes with attachment and detachment
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In this paper, traffic systems with attachment and detachment have been studied by total-asymmetric simple exclusion processes (TASEPs). Attachment and detachment in a one-dimensional system is a type of complex geometry that is relevant to biological transport with the random update rule. The analytical results are presented and have shown good agreement with the extensive Monte Carlo computer simulations. 相似文献
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Theoretical investigation of synchronous totally asymmetric simple exclusion process on lattices with two consecutive junctions in multiple-input-multiple-output traffic system 总被引:1,自引:0,他引:1
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In this paper, we study the dynamics of the synchronous
totally asymmetric simple exclusion process (TASEP) on lattices with
two consecutive junctions in a multiple-input-multiple-output (MIMO)
traffic system, which consists of m sub-chains for the input and the
output, respectively. In the middle of the system, there are N
(nN
synchronously increasing, the vertical phase boundary moves toward
the right and the horizontal phase boundary moves toward the upside in
the phase diagram. The boundary conditions of the system as well as
the numbers of input and output determine the no-equilibrium
stationary states, stationary-states phases, and phase boundaries.
We use the results to compare with computer simulations and find
that they are in very good agreement with each other. 相似文献
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Zone inhomogeneity with the random asymmetric simple exclusion process in a one-lane system 总被引:1,自引:0,他引:1
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In this paper we use theoretical analysis and extensive
simulations to study zone inhomogeneity with the random asymmetric
simple exclusion process (ASEP). In the inhomogeneous zone, the
hopping probability is less than 1. Two
typical lattice geometries are investigated here. In case A, the lattice includes two
equal segments. The hopping probability in the left segment is equal
to 1, and in the right segment it is equal to p, which is less than
1. In case B, there are three equal segments in the system; the
hopping probabilities in the left and right segments are equal to
1, and in the middle segment it is equal to p, which is less than
1. Through theoretical analysis, we can discover the effect on these
systems when p is changed. 相似文献