One of the most dynamical interplanetary phenomena of solar terrestrial physics is definitely the passage of solar wind streams near the Earth environment. In this work, we have identified the two types of high-speed solar wind streams using the spacecraft data during high amplitude days. The behaviour of high-speed solar wind streams during high amplitude anisotropic wave trains is investigate...

The observed difference in perceived annoyance caused by train and highway noise at the same averaged noise level, has led to the introduction of the ‘railway bonus’. This bonus has found its way to the noise legislation in many countries, leading to more relaxed restrictions on time averaged noise levels, LAeq. With the introduction of high-speed trains and train-like transportation systems ba...

In this study, we investigated measures against snow accretion on bogies of high-speed trains by utilizing air flow through inlets the sides trains. The effectiveness method was confirmed model experiments and numerical analysis. results showed that is expected to reduce accumulation onto covering body panels at rear about half.

In the complex operation environment of high-speed trains, the comprehensive evaluation index systems with high scientificity and measurability have been established after the all-round analysis of various effects on comfort for high-speed train. Meanwhile, a comprehensive evaluation method on comfort for high-speed train has been built by the rough set theory and multidimensional coefficient t...

Provision of high speed Internet access on moving trains is a challenging task, recently addressed by several research projects and also network operators, resulting in different proprietary solutions involving different telecommunication technologies. Some solutions are being tested in pilot networks while there are already some in commercial operation. The most challenging aspect is the provi...

In this paper, the single-track railway scheduling problem with two stations and several segments of the track is considered. Two subsets of trains are given, where trains from the first subset go from the first station to the second station, and trains from the second subset go in the opposite direction. The speed of trains over each segment is the same. A polynomial time reduction from the pr...