Results 91 to 100 of about 7,235 (257)

Automatic detection of impact craters on Mars using a modified adaboosting method

, 2014
The accurate recognition of impact craters is important to analyze and understand the relative dating of Martian surface. Since manually identifying small craters in a deluge of high-resolution Martian images is a tremendous task, a robust automatic ...
Jin, Shuanggen, Zhang, Tengyu
core  

Between birch and berries: seasonal dietary niche partitioning among sympatric alpine herbivorous birds

Oikos, EarlyView.
Niche partitioning is important for the coexistence of closely related species, allowing species to reduce overlap in resource use despite shared ecological requirements. In alpine environments, harsh climatic conditions and low habitat complexity constrain opportunities for ecological segregation, making seasonal resource fluctuation especially ...
Saria Sato‐Bajracharya, Rakel Blaalid, Jan Eivind Østnes, Oddmund Kleven, Marie Davey, Elise W. Ingvaldsen, Erlend B. Nilsen   +6 more
wiley   +1 more source

Influence of Thermal Cycling on Friction, Wear, and Damage Evolution of Fused Deposition Modeling of 3D‐Printed Glass Fiber Reinforced Polylactic Acid Composites

Polymer Composites, EarlyView.
Schematic illustration of the experimental procedure of the specimens. ABSTRACT This research work investigated the effect of the cyclic thermo‐hygrometric aging regime between −20°C and +40°C with 0–400 cycles on the reciprocating tribological properties of fused deposition modeling (FDM) printed polylactic acid (PLA) and the same material reinforced ...
Sinan Fidan, Satılmış Ürgün, Nevin Gamze Karsli, Taner Yılmaz, Mustafa Özgür Bora, Mehmet İskender Özsoy   +5 more
wiley   +1 more source

Erosion Resistance Enhancement in Epoxy Composites by Recycled Rubber: Effect of Rubber Type

Polymer Engineering &Science, EarlyView.
Erosion resistance enhancement in epoxy composites by recycled rubber. ABSTRACT Epoxy‐based materials have low erosion resistance due to their brittle nature, and toughness modification stands out for enhancing it. At this stage, the use of waste rubber as a reinforcement component in the composite system is of interest due to its role in providing ...
Orkan Baran Korkusuz, Şehriban Öncel, Bağdagül Karaağaç, Tamer Sınmazçelik   +3 more
wiley   +1 more source

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

Crater Equilibrium State Characterization given Crater Production from a Single Power Law

The Planetary Science Journal
We generalize the crater equilibrium concept, a terminal state on a cratered surface where the balance of crater production and erasure apparently limits the crater population from further growth. Assuming the crater production consists of a single power
Masatoshi Hirabayashi, Caleb I. Fassett, Emily S. Costello, David A. Minton   +3 more
doaj   +1 more source

Geology of Five Small Australian Impact Craters

, 2013
Here we present detailed geological maps and cross-sections of Liverpool, Wolfe Creek, Boxhole, Veevers and Dalgaranga craters. Liverpool crater and Wolfe Creek Meteorite Crater are classic bowlshaped, Barringer-type craters.
Shoemaker, Carolyn S., Macdonald, Francis, Shoemaker, Eugene M.   +2 more
core   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source

Characterizing Volcanic and Impact Materials in Lunar Craters

, 2022
Impact craters on the Moon are typically infilled by either impact or volcanic melt, but outside of a few previously known characteristics, identification can be complicated.
Robbins, Gwendolyn
core  

The Morphometry of Impact Craters on Bennu

, 2020
International audienceBennu is an~500-m-diameter rubble-pile asteroid that is the target of detailed study by the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission.
Susorney, H.C.M., E. B. Bierhaus, J. A. Seabrook, R. T. Daly, Johnson, C.L., Barnouin, O.S., K. J. Walsh, H. Nair, Johnson, C.L., L, Weirich, J., Michel, Patrick, Palmer, E.E., Roberts, James, D. S. Lauretta, Gaskell, P., Roberts, J.H., M. E. Perry, Gaskell, R.W., Trang, D., M. C. Nolan, Nolan, M.C., Susorney, H., H. C. M. Susorney, Perry, M.E., Johnson, C.L.,, Jawin, E.R., Barnouin, Olivier, Bierhaus, E.B., Seabrook, J.A., M. G. Daly, H, Nair, Daly, Mike, Nair, H., Weirich, J.R., Esperitu, R.C., Jawin, E., C. L. Johnson, Seabrook, J., Ernst, C.M., D. Trang, Lauretta, D.S., Daly, M.G., Nolan, M C, Palmer, E., J. R. Weirich, O. S. Barnouin, R. W. Gaskell, Walsh, K.J., E. R. Jawin, C. M. Ernst, Daly, R.T., Lauretta, D.S, J. H. Roberts, R. C. Espiritu, P. Michel, Ernst, Carolyn, Perry, Mark E., Espiritu, R.C., Bierhaus, E., E. E. Palmer, Michel, P.   +60 more
core   +1 more source