Introduction. The development of power semiconductor devices and technology served the basis for fundamentally new types frequency-controlled electric drives with traction asynchronous motors on rolling stock electrified railways. Therefore, problems theoretical experimental study operating modes mentioned become actual. This article is a theme continuation machines control AC locomotive, which...

Abstract. In this paper, we give an overview of the Locomotive Simulater/Optimizer (LSO) decision support system developed by us for railroads. This software is designed to imitate locomotive movement across a rail network, and it simulates all four major components of the system; trains, locomotives, terminals, and shops in an integrated framework. It includes about 20 charts that allow evalua...

The slip control is important for an adhesion force transmission between locomotive wheels and rails. The slip control consists of two tasks. The first task is the slip value detection and the second one is the evaluation of a slip value with a subsequent control action. These two tasks can be realized by many types of methods. Several detection methods use an adhesion coefficient or the adhesi...

The notion of transplanting limbs to enhance a motion capture database is appealing and has been recently introduced [Sha04], [Ike04]. A key difficulty in the process is identifying believable combinations. Not all transplantations are successful; we also need to identify appropriate frames in the different clips that are “cutpasted.” In this paper, we describe motion grafting, a method to synt...

An energy-storage flywheel consists of a large inertia wheel sharing a common shaft with a motor generator (MG) set and with magnetic bearings to support the entire rotating assembly. Flywheels mounted on a special slug car are charged from the local utility grid and from regenerative-braking events. Usage of these power sources reduces fuel consumption and the related NOx emission by the locom...

NOTICE This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. NOTICE The United States Government does not endorse products or manufacturers. Trade or manufacturers' names appear herein solely because they are considered essential to the ob...

Book Review virtually any target RNA, providing a potentially powerful extension of the antisense approach to gene inactiva-tion. Subsequent advances in RNA synthesis methods allowed large scale preparation of catalytic RNAs for RNA Catalysis. structural studies, the introduction of nucleotide modifications to stabilize antisense ribozymes against intra-Berlin: Springer-Verlag. (1996). 417 pp. ...

In a super-aged society, the need for prevention of locomotor dysfunction is growing, and evidence for feasible preventive measures is thus required. This study aimed to examine the relationship between these disorders and the prevalence rates for falling and physical function status. Participants included 1182 community-dwelling elderly Japanese individuals aged 60 and older. Subjects were cla...

A reliability study based on a Bayesian semi-parametric framework is performed in order to explore the impact of the position of a locomotive wheel on its service lifetime and to predict its other reliability characteristics. A piecewise constant hazard regression model is used to analyse the lifetime of locomotive wheels using degradation data and taking into account the bogie on which the whe...