Results 81 to 90 of about 10,691 (260)

Accelerator experiments with soft protons and hyper-velocity dust particles: application to ongoing projects of future X-ray missions

, 2012
We report on our activities, currently in progress, aimed at performing accelerator experiments with soft protons and hyper-velocity dust particles. They include tests of different types of X-ray detectors and related components (such as filters) and ...
Azzarello, P., Bozzo, E., Brandt, S., Bugiel, S., Cordier, B., Del Monte, E., Dennerl, K., Diebold, S., Feroci, M., Fraser, G. W., Freyberg, M., Friedrich, P., Götz, D., Herder, J. -W. den, Hernanz, M., Jochum, J., Kelley, R. L., Kendziorra, E., Kilbourne, C. A., Leutenegger, M. A., Meidinger, N., Osborne, J. P., Perinati, E., Rachevski, A., Rashevskaya, I., Rubini, A., Santangelo, A., Srama, R., Strüder, L., Tenzer, C., Vacchi, A., Zampa, G., Zampa, N., Zane, S.   +33 more
core   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

Boreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo, Priyadarsi D. Roy, Benjamin Gwinneth, Irma G. Vargas‐Martinez, Alejandro A. Aragon‐Moreno, Roger Medina‐Gonzales   +5 more
wiley   +1 more source

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

Computer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich, M. Levy, O. Avrahami, D. Samuel, D. Lischinski   +4 more
wiley   +1 more source

Authoring Terrestrial Planets with Diffusion Models

Computer Graphics Forum, EarlyView.
Abstract To support the design and subsequent generation of terrestrial planets for use in the creative media, we propose a solution that employs a generative model trained on satellite data from planetary bodies with a defined solid surface, such as the Earth and Mars.
Oliver Borg, James Gain, Éric Guérin, Adrien Peytavie, Marie‐Paule Cani, Eric Galin, Guillaume Cordonnier   +6 more
wiley   +1 more source

Multi-station fireball observations combining all-sky spectroscopy and optical trajectory measurements

Earth and Planetary Physics
Optical monitoring of fireballs can provide reconstructions of luminous trajectories and the derivation of heliocentric orbits, whereas spectral observations are able to supply information from an entirely different perspective, with composition and ...
ZhiJian Xu, HaiBin Zhao, Nawaz Mahomed, Yi Li   +3 more
doaj   +1 more source

Choice Feminism and the Opt‐Out Phenomenon: Is It Possible to Speak of Free Will?

Gender, Work &Organization, EarlyView.
ABSTRACT The aim of this research was to question choice feminism in the light of the opt‐out phenomenon, through a thematic narrative analysis of the professional trajectories of five Brazilian women with university degrees. As a result of the research—and the main contribution to the advancement of knowledge in the field—it was found that although ...
Paula Furtado Hartmann de Queiroz Monteiro, Alane de Oliveira Barbosa, Ana Heloísa da Costa Lemos, Alessandra Costa   +3 more
wiley   +1 more source

Modeling the Meteoroid Environment Far from the Ecliptic Plane

The Planetary Science Journal
We describe a new version (numbered 3.1) of NASA’s Meteoroid Engineering Model, in which we extend the model to handle locations that lie more than a few degrees in latitude off the ecliptic plane.
Althea V. Moorhead, Petr Pokorný, Marcus A. Holden, William Kosmann   +3 more
doaj   +1 more source

The mesospheric metal layer topside: a possible connection to meteoroids [PDF]

Atmospheric Chemistry and Physics, 2004
In the past, many studies have been carried out to demonstrate the influence of meteoroids on the atmospheric metal layer, observed roughly in the altitude range 80–105 km.
J. Höffner, J. S. Friedman
doaj  

Deep Groundwater Total Dissolved Solids Mapping in the Dakota Group, Williston Basin, USA

Groundwater, EarlyView.
Abstract Growing concern about the quantity of available freshwater around the world has led to interest in surveying groundwater total dissolved solids (TDS) below water well depths. Deep TDS has not been systematically mapped, and there is much to learn about the distribution and controls on deeper groundwater. In sedimentary basins across the United
Michael J. Stephens, Bennett E. Hoogenboom, Lyndsay B. Ball, Will Chang   +3 more
wiley   +1 more source

The Maribo CM2 meteorite fall - survival of weak material at high entry speed

, 2019
High entry speed (> 25 km/s) and low density (< 2500 kg/m3) are two factors that lower the chance of a meteoroid to drop meteorites. The 26 g carbonaceous (CM2) meteorite Maribo recovered in Denmark in 2009 was delivered by a superbolide observed by ...
Borovicka, Jiri, Popova, Olga, Spurny, Pavel   +2 more
core   +1 more source