The behavior of vehicles at a merging section of Personal Rapid Transit(PRT) with two entry points is analyzed using the Markov chain technique. The analysis of the behavior is based on an edealized model. The structure of a merging section is that a sub-line diverges into two off-lines and the off-lines merge a main-line at different two entry points. This paper derives the average queue length and the average waiting time of vehicles. Several characteristics of the merging section are identified from the result of comparison with an ordinary merging section.
The design of the Fuel Injection System is important for a highly rated Diesel Engine, because it gives a great influence for engine performance and reliability. This paper describes simulation techniques of the Fuel Injection System and its industrial application. The simulation techniques have two distinctive features : one is the use of Characteristic Method for numerical analysis, and the other lies with an idea for cavitation phenomena.
This paper discusses the case where a finite element method is applied for eddy current calculation on a multiply-connected domain. We show that the coefficient matrix of the finite element method degenerates in accordance with the number of 'holes' in the domain, whien we approximate the electric field by 'Nedelec's finite elements'in the dicretization process. We propose a countermeasure for the degeneracy of th coefficient matrix. This measure is tantamount to assigning the time change rate of magnetic fluxes through holes. Finally we present some numerical examples.