Results 91 to 100 of about 207,571 (289)

Enhanced electron emission from coated metal targets: Effect of surface thickness on performance

open access: yesAIP Advances, 2018
In this work, we establish an analytical formalism to address the temperature dependent electron emission from a metallic target with thin coating, operating at a finite temperature.
Saibabu Madas   +2 more
doaj   +1 more source

ALPS: A Linear Program Solver [PDF]

open access: yes
ALPS is a computer program which can be used to solve general linear program (optimization) problems. ALPS was designed for those who have minimal linear programming (LP) knowledge and features a menu-driven scheme to guide the user through the process ...
Ferencz, Donald C., Viterna, Larry A.
core   +1 more source

When tiny convective spread affects a midlatitude jet: Spread sequence

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We investigate spread evolution by mesoscale convection from tiny initial condition uncertainty during a real event. There is significant variation among the systems in their propensity to interact with the jet stream, whereby variability in one system (due to convective and long‐wave radiative heating tendencies) tightly relates to Rossby‐like ...
Edward Groot, Michael Riemer
wiley   +1 more source

Physically consistent mesoscale model evaluation in complex terrain

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study introduces a novel approach for evaluating mesoscale atmospheric models in complex terrain by selecting physically consistent grid points and applying height‐based corrections. The method corrects for sensor height and terrain elevation differences between model and observations using a time‐varying lapse rate.
Gaspard Simonet   +2 more
wiley   +1 more source

Characterization of a Transition-Edge Sensor for the ALPS II Experiment

open access: yes, 2015
The ALPS II experiment, Any Light Particle Search II at DESY in Hamburg, will look for light (m< 10-4 eV) new fundamental bosons (e.g., axion-like particles, hidden photons and other WISPs) in the next years by the mean of a light-shining-through-the ...
Bastidon, Noemie   +2 more
core   +1 more source

Turbulent snow transport and accumulation: New reduced‐order models and diagnostics

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Our new reduced‐order models of snow particle transport provide high‐fidelity calculations of snow accumulation in turbulent flows at significantly reduced computational costs. Additional accumulation diagnostics from the reduced‐order model predict complex patterns of particle concentration in turbulent boundary layers via coherent flow structures in ...
Nikolas O. Aksamit   +3 more
wiley   +1 more source

Fill valve development for the Advanced Liquid Propulsion System /ALPS/ [PDF]

open access: yes
Manually operated liquid fuel control valve for Advanced Liquid Propulsion System ...
Mac Glashan, W. F., Jr.
core   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert   +5 more
wiley   +1 more source

Faunistics of oribatid mites (Acari, Oribatida) in dry grassland sites in the Eisack Valley (South Tyrol, Prov. Bolzano, Italy)

open access: yesSoil Organisms, 2018
Oribatid mites were investigated in five dry grassland sites in the basin around Klausen / Chiusa (South Tyrol). Soil and litter samples were taken from characteristic microhabitats (dry grassland, dry bushland, rocky steppe).
Heinrich Schatz
doaj   +1 more source

Camera traps and deep learning enable efficient large‐scale density estimation of wildlife in temperate forest ecosystems

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We tested the effect of using a readily available deep learning algorithm for animal species classification on the population density estimates of eight wild mammal species in 10 protected areas (Da). In general, there were no significant differences to the manual estimates (Dm) for all animal species and seasons.
Maik Henrich   +15 more
wiley   +1 more source

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