Results 11 to 20 of about 117,808 (280)

What Is a Polygonal Impact Crater? A Proposed Framework Toward Quantifying Crater Shapes

open access: yesEarth and Space Science, 2023
Impact craters are used for a wide array of investigations of planetary surfaces. A crater form that is somewhat rare, forming only ∼10% of impact craters, is the polygonal impact crater (or PIC).
Stuart J. Robbins, Jamie D. Riggs
doaj   +1 more source

Evaporation process study through in situ and remote sensing data at Tres Quebradas Salt flat

open access: yesRevista de Teledetección, 2019
The calculation of evaporation (Ev) is a fundamental process on the planning of investment for nonmetallic mining in salt flats. Dispose to reliable estimates of evaporation allows to reduce one of the main uncertainties of the flow models in this type ...
F. Carmona   +5 more
doaj   +1 more source

The Climate Monitoring SAF Outgoing Longwave Radiation from AVHRR

open access: yesRemote Sensing, 2020
Data from the Advanced Very High Resolution Radiometer (AVHRR) have been used to create several long-duration data records of geophysical variables describing the atmosphere and land and water surfaces.
Nicolas Clerbaux   +6 more
doaj   +1 more source

Hydrogel particles improve detection of SARS-CoV-2 RNA from multiple sample types

open access: yesScientific Reports, 2020
Here we present a rapid and versatile method for capturing and concentrating SARS-CoV-2 from contrived transport medium and saliva samples using affinity-capture magnetic hydrogel particles.
R. A. Barclay   +23 more
doaj   +1 more source

Appropriate sampling methods and statistics can tell apart fraud from pesticide drift in organic farming

open access: yesScientific Reports, 2021
Pesticide residues are much lower in organic than in conventional food. The article summarizes the available residue data from the EU and the U.S. organic market. Differences between samples from several sources suggest that organic products are declared
Albrecht Benzing   +13 more
doaj   +1 more source

Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres [PDF]

open access: yes, 2007
We study the physical characteristics (shape, dimensions, spin axis direction, albedo maps, mineralogy) of the dwarf-planet Ceres based on high-angular resolution near-infrared observations.
A'Hearn   +50 more
core   +4 more sources

Cryovolcanism on Ceres [PDF]

open access: yesScience, 2016
INTRODUCTION Classic volcanism prevalent on terrestrial planets and volatile-poor protoplanets, such as asteroid Vesta, is based on silicate chemistry and is often expressed by volcanic edifices (unless erased by impact bombardment).
Ruesch, O.   +25 more
openaire   +4 more sources

Variations in the amount of water ice on Ceres' surface suggest a seasonal water cycle. [PDF]

open access: yes, 2018
The dwarf planet Ceres is known to host a considerable amount of water in its interior, and areas of water ice were detected by the Dawn spacecraft on its surface.
Ammannito, Eleonora   +21 more
core   +2 more sources

A comparison of the dry matter yield and nutritional value of different corn hybrids for silage production [PDF]

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
The aim of this study was to evaluate the forage yield and nutritional value of eight corn hybrids for silage production: P3565 PWU (Pioneer®), CERES 310, CERES 312, CERES 405, CERES 412 (Nova Ceres Sementes®), 2A521 PW, 2B533 PW and FS620 PWU (Forseed®),
M. Neumann   +8 more
doaj   +1 more source

Impactor flux and cratering on Ceres and Vesta: Implications for the early Solar System [PDF]

open access: yes, 2011
We study the impactor flux and cratering on Ceres and Vesta caused by the collisional and dynamical evolution of the asteroid Main Belt. We develop a statistical code based on a well-tested model for the simultaneous evolution of the Main Belt and NEA ...
Asphaug   +33 more
core   +3 more sources

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