منابع مشابه
The Behaviour of Under-Sleeper Pads at Switches and Crossings (S&C) - field measurements
Major growth in rail traffic in many parts of the world in recent years has brought railway networks close to capacity and restricted the time available for track access to carry out maintenance work without costly temporary route closures. There are, therefore, significant benefits in designing or modifying ballasted track systems to reduce maintenance and associated access requirements. Under...
متن کاملReliability Analysis of Switches and Crossings – A Case Study in Swedish Railway
It is reported that switches and crossings (S&C) are one of the subsystems that cause the most delays on Swedish Railways while accounting for at least 13% of maintenance costs. It is the main reason for choosing to base this study on this subsystem. Intelligent data processing allows understanding the real reliability characteristics of the assets to be maintained. The first objective of this...
متن کاملSleeper effects.
Early experience preserves and refines many capabilities that emerge prenatally. Here we describe another role that it plays -- establishing the neural substrate for capabilities that emerge at a much later point in development. The evidence comes from sleeper effects: permanent deficits when early experience was absent in capabilities that normally emerge long after birth. We provide evidence ...
متن کاملScheduling VOQ Switches under Non-Uniform Traffic
Abstract — Input queueing is becoming increasingly important for high-bandwidth switches and routers. In previous work, we proved that it is possible to achieve 100% throughput for input-queued switches using a cell-by-cell scheduling algorithm called LQF. However, LQF is too complex to implement in hardware. In this paper we introduce a new algorithm called Longest Port First (LPF), which is d...
متن کاملDNA nanomechanical switches under folding kinetics control.
Existing DNA nanodevices operate at equilibrium under changes in solution composition. We propose an alternative DNA switch design that can be driven and maintained out of equlibrium, under fixed chemical conditions. Moderate cooling rate after heat denaturation drives the switch to its lowest energy conformation, while rapid cooling (>100 degrees C/ms) locks the molecule in a unique alternativ...
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ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2017
ISSN: 1757-8981,1757-899X
DOI: 10.1088/1757-899x/236/1/012045