Results 51 to 60 of about 18,055 (209)
Multi-criteria GIS analysis of the topography of the Moon and better solutions for potential landing
Open Astronomy, 2019 During the past twenty years, the need to reach theMoon by the private space missions has been growing. Some of the private missions are supported by Google Lunar X-prize and Space-X. In the period between 2020 and 2050 private companies will be planning
Valjarević Aleksandar +4 more
doaj +1 more source
, 2011 Wind-induced pointing errors are a serious concern for large-aperture high-frequency radio telescopes. In this paper, we describe the implementation of an optical quadrant detector instrument that can detect and provide a correction signal for wind ...
Bayley A. M. +15 more
core +1 more source
Journal of Applied Crystallography, EarlyView.mcstas_gisans is a Python‐based framework that enables simulation of grazing‐incidence small‐angle neutron scattering experiments by integrating McStas and BornAgain into a single workflow.The mcstas_gisans framework is a collection of Python scripts and modules to facilitate the simulation of grazing‐incidence small‐angle neutron scattering (GISANS ...
Milán Klausz +8 more
wiley +1 more source
New 60-cm Radio Survey Telescope with the Sideband-Separating SIS Receiver for the 200 GHz Band
, 2007 We have upgraded the 60-cm radio survey telescope located in Nobeyama, Japan. We developed a new waveguide-type sideband-separating SIS mixer for the telescope, which enables the simultaneous detection of distinct molecular emission lines both in the ...
Asayama, Shin'ichiro +12 more
core +1 more source
Computer Graphics Forum, EarlyView.We present design considerations for animated transitions of the appearance of 3D spatial datasets in a hybrid Augmented Reality‐desktop context. Such hybrid interfaces combine both traditional and immersive displays to facilitate the exploration of 2D and 3D data representations in the environment in which they are best displayed.
Yucheng Lu +6 more
wiley +1 more source
«Orientatio ad sidera»: astronomy and landscape in «Qart Hadašt/Carthago Nova»
Zephyrus, 2015 Archaeological investigations in Cartagena –the ancient Punic Qart Hadašt, Roman Carthago Nova– have manifested the existence of ritual, urban and topographical elements that could be analyzed from the perspective of Cultural Astronomy.
Antonio César GONZÁLEZ-GARCÍA +7 more
doaj +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews +5 more
wiley +1 more source
Study of the atmospheric conditions at Cerro Armazones using astronomical data
, 2016 Aims: We studied the precipitable water vapour (PWV) content near Cerro Armazones and discuss the potential use of our technique of modelling the telluric absorbtion lines for the investigation of other molecular layers.
Kausch, Wolfgang +5 more
core +1 more source
Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil
Meteoritics &Planetary Science, EarlyView.Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta +9 more
wiley +1 more source
, 2007 Motivated by the recognition that variation in the optical transmission of the atmosphere is probably the main limitation to the precision of ground-based CCD measurements of celestial fluxes, we review the physical processes that attenuate the passage ...
Benjamin R. Granett +20 more
core +2 more sources