Results 31 to 40 of about 119,322 (298)

Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction

Journal of Glaciology, 2017
The instrumented sample holder Snowbreeder 5 is used to investigate the simultaneous influence of settlement on temperature-gradient snow metamorphism in time-lapse micro-computed tomography experiments.
MAREIKE WIESE, MARTIN SCHNEEBELI
doaj   +1 more source

Assessing the robustness and scalability of the accelerated pseudo-transient method [PDF]

Geoscientific Model Development, 2022
The development of highly efficient, robust and scalable numerical algorithms lags behind the rapid increase in massive parallelism of modern hardware.
L. Räss, L. Räss, I. Utkin, I. Utkin, I. Utkin, T. Duretz, T. Duretz, S. Omlin, Y. Y. Podladchikov, Y. Y. Podladchikov, Y. Y. Podladchikov   +10 more
doaj   +1 more source

In Defense of the Epistemic Imperative [PDF]

, 2018
Sample (2015) argues that scientists ought not to believe that their theories are true because they cannot fulfill the epistemic obligation to take the diachronic perspective on their theories. I reply that Sample’s argument imposes an inordinately heavy
A Chakravartty, A Goldman, A Goldman, B Fraassen van, B Fraassen van, B Fraassen van, D Harker, H Putnam, J Saatsi, J Worrall, L Laudan, M Mizrahi, M Sample, P Enfield, P Kitcher, P Kyle Stanford, P Vickers, PD Magus, R Feldman, S Park, S Park, S Park, S Park, S Park, S Psillos, S Psillos, Seungbae Park   +26 more
core   +2 more sources

Early-stage interaction between settlement and temperature-gradient metamorphism

Journal of Glaciology, 2017
Snow metamorphism and settlement change the microstructure of a snowpack simultaneously. Past experiments investigated snow deformation under isothermal conditions. In nature, temperature gradient metamorphism and settlement often occur together.
MAREIKE WIESE, MARTIN SCHNEEBELI
doaj   +1 more source

A closed-form model for layered snow slabs [PDF]

The Cryosphere, 2023
We propose a closed-form analytical model for the mechanical behavior of stratified snow covers for the purpose of investigating and predicting the physical processes that lead to the formation of dry-snow slab avalanches.
P. Weißgraeber, P. L. Rosendahl
doaj   +1 more source

Influence of slab depth spatial variability on skier-triggering probability and avalanche size

Annals of Glaciology
Spatial variability of snowpack properties adds uncertainty in the evaluation of avalanche hazard. We propose a combined mechanical–statistical approach to study how spatial variation of slab depth affects the skier-triggering probability and possible ...
Francis Meloche, Louis Guillet, Francis Gauthier, Alexandre Langlois, Johan Gaume   +4 more
doaj   +1 more source

VIP: An Experiment to Search for a Violation of the Pauli Exclusion Principle

, 2006
The Pauli Exclusion Principle is a basic principle of Quantum Mechanics, and its validity has never been seriously challenged. However, given its fundamental standing, it is very important to check it as thoroughly as possible.
Bartalucci, S., Bertolucci, S., Bragadireanu, M., Cargnelli, M., Catitti, M., Curceanu, C., Di Matteo, S., Egger, J. -P., Guaraldo, C., Iliescu, M., Ishiwatari, T., Laubenstein, M., Marton, J., Milotti, E., Pietreanu, D., Ponta, T., Sirghi, D. L., Sirghi, F., Sperandio, L., Widmann, E., Zmeskal, J.   +20 more
core   +1 more source

Comparing measurements of snow mechanical properties relevant for slab avalanche release

Journal of Glaciology, 2019
Snow properties relevant to the fracture processes involved in dry-snow slab avalanche release include weak layer specific fracture energy, slab elastic modulus and density.
BENJAMIN REUTER, MARTIN PROKSCH, HENNING LÖWE, ALEC VAN HERWIJNEN, JÜRG SCHWEIZER   +4 more
doaj   +1 more source

Dynamic models for impact-initiated stress waves through snow columns

Journal of Glaciology
The objective of this research is to model snow's response to dynamic, impact loading. Two constitutive relationships are considered: elastic and Maxwell-viscoelastic.
Samuel Vincent Verplanck, Edward Eagan Adams   +1 more
doaj   +1 more source

The effect of slab touchdown on anticrack arrest in propagation saw tests [PDF]

Natural Hazards and Earth System Sciences
Understanding crack phenomena in the snowpack and their role in avalanche formation is imperative for hazard prediction and mitigation. Many studies have explored how structural properties of snow contribute to the initial instability of the snowpack ...
P. L. Rosendahl, J. Schneider, G. Bobillier, F. Rheinschmidt, B. Bergfeld, A. van Herwijnen, P. Weißgraeber   +6 more
doaj   +1 more source