MATHEMATICAL MODEL OF DPKR-2 DYZEL TRAIN CAR

Solving a New Multi-Period Mathematical Model of the Rail-Car Fleet Size and Car Utilization by Simulated Annealing

There is a significant interaction between sizing a fleet of rail cars and its utilization. This paper presents a new multi-period mathematical model and a solution procedure to optimize the rail-car fleet size and freight car allocation, wherein car demands, and travel times, are assumed to be deterministic, and unmet demands are backordered. This problem is considered NP-complete. In other wo...

Prediction of runoff and sediment from agricultural watersheds by a mathematical model 2 mathematical simulation

A new mathematical model for car drivers with spatial preview

A mathematical driver model is given in the spacial equation form, which takes into account the previewed information of the path. Optimal control method is considered for the ideal no time-delay case and Lyapunov-Krasovskii functional approach is applied to deal with drivers’ reaction time-delay. For both cases, exponential stability is guaranteed for the closedloop system.

Evaluation of Passenger Train Car Materials in the Cone Calorimeter

Recent advances in fire test methods and hazard analysis techniques make it useful to reexamine passenger train fire safety requirements. The use of test methods based on heat release rate (HRR), incorporated with fire modeling and hazard analysis, could permit the assessment of potential hazards under realistic fire conditions. The results of research directed at the evaluation of passenger tr...

2 Car Talk, Car Listen

Among age-old speculations about the origins of human language is a suggestion that use of the oral channel evolved to leave the hands and the rest of the body free for other activities. Whether this is true or not, there are few human activities that proceed unaccompanied by talking or listening. With the scope of everyday activities expanding to include some that are life-threatening unless p...