conclusions tram tracks on public roads are potentially dangerous and can lead to serious injuries and even mortality amongst cyclist. operative intervention is frequently needed. background in cities with trams as public transportation, tram tracks are often on public roads, creating a shared road situation with other road participants like cyclists. beside the risk of direct collisions, this ...

Avalanches represent a very short, local, dynamic event in snow-covered mountainous regions. They are not easy to predict and often can produce devastating results. Avalanche cartography deals with the causes and consequences of such incidents and attempts to depict them in a variety of ways. The most common cartographic representation within this field is the avalanche hazard map. It incorpora...

TACTIC is a new detector for low energy nuclear reactions currently under development at TRIUMF. The cylindrical ionization chamber allows three-dimensional reconstruction of particle tracks by means of a two-dimensional anode array combined with a TOF measurement of the drift electrons. In addition, the integrated charge for each pulse provides information about the energy loss of the particle...

The Directional Recoil Identification From Tracks (DRIFT) detector has recently been proposed [?] to search for dark matter. This detector is unique in that it drifts negative ions, instead of electrons, in a time projection chamber (TPC). A detailed description of the operation, motivation, and other uses of a negative ion TPC (NITPC) can be found in [?]. Briefly, an electronegative component ...

Throughout the winter, avalanche forecasters issue bulletins to help the public and the managers of public facilities make avalanche safety decisions. These bulletins typically describe important snowpack features and current weather events before rating the avalanche danger on a scale of one through five. Although the character of avalanche conditions may vary between regions, the physical pro...

Today, temporary measures to improve avalanche safety often depend on remote measurements by automatic stations. The snow profile radar allows for direct measurements of snow accumulation, settling, fracture height and water percolation within avalanche release zones. Alarm stations automatically recognize avalanche flow and close traffic lines. Remote avalanche control by Wyssen exploders, pro...

Single-photon avalanche diodes (SPADs) are primary devices in photon counting systems used in quantum cryptography, time resolved spectroscopy and photon counting optical communication. SPADs convert each photo-generated electron hole pair to a measurable current via an avalanche of impact ionizations. In this paper, a stochastically self-regulating avalanche model for passively quenched SPADs ...

Relative to recreationists, avalanche professionals in Canada have a high success rate for managing avalanche hazard and making sound decisions in avalanche terrain. This success invites the question: What can be learned from these successes relative to avalanche education, decision support and accident prevention for backcountry recreationists? I surveyed Canadian avalanche professionals using...

Based on the synergetic approach, the theory of a single avalanche formation is presented for the simplest sandpile model. The stationary values of sand velocity, slope and avalanche intensity are derived as functions of control parameter (externally driven sandpile tilt). The statistical ensemble of avalanche intensities is considered to investigate diffusion in ultrametric space of hierarchic...