A study on results of TPS according to the optimum traction power supply system of Urban MAGLEV railway No . 66
The main purpose of this study is to conduct correlation factor analysis in both headway time and power capacity by means of analytical approach to results of power property in terms of headway time of Urban MAGLEV from the standpoint of headway time of Urban MAGLEV on the Incheon international airport maglev railway, in the process of construction at the moment, in Korea. Railroad track, as a fundamental condition of service simulation, is set up with double track, and it is therefore that the three patterns of headway time of Urban MAGLEV on the track. TPS is performed by Urban MAGLEV operation consisted of three separated patterns in headway time on the double railroad track or the trial track. As a result of such simulation, three types of characteristics listed below were obtained. 1) The peak power capacity related to transportation demand on the trial track compared to the result given. 2) The optimum capacity of substation is determined based on the analysis. 3) The location of substations is determined based on the analysis. The result of research performance, therefore, enables us to reflect the power supply system design for the stabilized and economized Urban MAGLEV operation
A review of simulation models for railway systems
The objective of this paper is to review the development of a number of approaches to computer simulation models of railway systems. Attention is, in particular, given to models of train movement, power supply systems and traction drives. These models have been successfully used to enable various 'what-if' issues to be resolved effectively in a wide range of applications, such as speed profiles, energy consumption, run times etc.
Explicit solutions for N-dimensional Schrödinger equations with position-dependent mass
With the consideration of spherical symmetry for the potential and mass function, one-dimensional solutions of nonrelativistic Schrodinger equations with spatially varying effective mass are successfully extended to arbitrary dimensions within the frame of recently developed elegant nonperturbative technique, where the BenDaniel-Duke effective Hamiltonian in one dimension is assumed like the unperturbed piece, leading to well-known solutions, whereas the modification term due to possible use of other effective Hamiltonians in one dimension and, together with the corrections coming from the treatments in higher dimensions, are considered as an additional term like the perturbation. Application of the model and its generalization for the completeness are discussed.