Results 141 to 150 of about 19,437 (295)

Avalanches

open access: yes, 2010
Ensino Médio::MatemáticaEste experimento propõe modelar matematicamente avalanches provocadas por materiais simples, como milho de pipoca, feijão e um recipiente qualquer.
Universidade Estadual de Campinas - Unicamp - Matemática   +2 more
core  

Evaluating Testability of Permafrost Models Through Physical and Thermal Testing in Complex Mountain Terrain, Yukon, Canada

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT Due to its subsurface nature, permafrost cannot be directly observed with the naked eye or optical remote sensing. Consequently, accurately describing its distribution and thermal state is challenging. This is especially true in vast, remote environments, where obtaining comprehensive field data is demanding or improbable.
Ria Nicholson   +5 more
wiley   +1 more source

La neige et les avalanches

open access: yes, 1998
[Departement_IRSTEA]EEE [TR1_IRSTEA]E31-Ingénierie et prévention des risques naturels en montagneExtrait de documentThis course exempted within the framework of the "University Diploma of Medicine and Mountain Rescue" presents the formation of the snow ...
Valla, F.
core  

Evaluation of a novel laser‐system operating at 1940 nm for weed control and determining the influence of biological and operational factors

open access: yesPest Management Science, EarlyView.
The control efficacy of a novel laser pulse system operating at 1940 nm was tested. The new system allows effective control of young weeds with 1.5 J. Targeting the plant stem is 53‐fold more energy‐efficient than the meristem. Species morphology and beam diameter significantly influence weed control efficacy. Abstract BACKGROUND This study evaluates a
Ran Nisim Lati   +6 more
wiley   +1 more source

Dumpsite Seabed Characterization of the San Pedro Basin, CA, From Autonomous Vehicle Observations

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT A wide‐area seabed survey was conducted using autonomous underwater vehicles (AUVs) in a known dumpsite off the coast of Southern California that has been found to have widespread sediment contamination from the chemical dichlorodiphenyltrichloroethane (DDT).
Ryan A. McCarthy   +4 more
wiley   +1 more source

Using Airborne Laser Scanning and Sentinel‐2 to Understand Subcanopy Light Regimes and Understory Diversity of Vascular Plants in Temperate Mountain Forests

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study demonstrates that not just Airborne Laser Scanning, but also Sentinel‐2 can effectively estimate absolute canopy cover and canopy cover heterogeneity ‐ structural metrics that determine the subcanopy light regime, found to be linked to the vascular plant species richness in the understory of temperate mountain forests.
Felix Wieland‐Glasmann   +4 more
wiley   +1 more source

Symmetry breaking and avalanche shapes in modular neural networks. [PDF]

open access: yesFront Comput Neurosci
de Candia A   +3 more
europepmc   +1 more source

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