Results 11 to 20 of about 1,349,667 (249)

Edge-detection applied to moving sand dunes on Mars [PDF]

open access: yesInternational Journal of Sciences, 2013, 2(8):102-104, 2013
Here we discuss the application of an edge detection filter, the Sobel filter of GIMP, to the recently discovered motion of some sand dunes on Mars. The filter allows a good comparison of an image HiRISE of 2007 and an image of 1999 recorded by the Mars ...
Sparavigna, Amelia Carolina
core   +3 more sources

The adsorption of sulfur by microporous materials [PDF]

open access: yes, 1975
The sorption of sulfur by the zeolites NaX (= 13X) and CaA (= 5A) and an activated charcoal prepared from sugar was investigated at temperatures between 150 and 350°C and relative sulfur pressures between 10−4 and 10−1.
Mars, P., Steijns, M.
core   +14 more sources

Can Orbital Servers Provide Mars-Wide Edge Computing? [PDF]

open access: yes, 2023
Human landing, exploration and settlement on Mars will require local compute resources at the Mars edge. Landing such resources on Mars is an expensive endeavor. Instead, in this paper we lay out how concepts from low-Earth orbit edge computing may be applied to Mars edge computing.
arxiv   +1 more source

An investigation into the use of 3G mobile communications to provide telehealth services in rural KwaZulu-Natal [PDF]

open access: yes, 2015
This article has been made available through the Brunel Open Access Publishing Fund.Abstract Background: We investigated the use of third-generation (3G) mobile communications to provide telehealth services in remote health clinics in rural KwaZulu-Natal,
Malcolm Clarke   +3 more
core   +1 more source

Spacetime Ehlers group: Transformation law for the Weyl tensor [PDF]

open access: yes, 2001
The spacetime Ehlers group, which is a symmetry of the Einstein vacuum field equations for strictly stationary spacetimes, is defined and analyzed in a purely spacetime context (without invoking the projection formalism).
Mars, Marc
core   +2 more sources

Mobile Augmented Reality: User Interfaces, Frameworks, and Intelligence [PDF]

open access: yes, 2021
Mobile Augmented Reality (MAR) integrates computer-generated virtual objects with physical environments for mobile devices. MAR systems enable users to interact with MAR devices, such as smartphones and head-worn wearables, and performs seamless transitions from the physical world to a mixed world with digital entities.
arxiv   +1 more source

The mechanism of pyridine hydrogenolysis on molybdenum-containing catalysts : III. Cracking, hydrocracking, dehydrogenation and disproportionation of pentylamine [PDF]

open access: yes, 1974
The conversion of pentylamine on a MoO3-Al2O3 catalyst was studied between 250 and 350 °C, at various hydrogen pressures. The reactions observed were cracking to pentene and ammonia, hydrocracking to pentane and ammonia, dehydrogenation to pentanimine ...
Mars, P., Sonnemans, J.
core   +2 more sources

MARS: Motion-Augmented RGB Stream for Action Recognition

open access: yesComputer Vision and Pattern Recognition, 2019
Most state-of-the-art methods for action recognition consist of a two-stream architecture with 3D convolutions: an appearance stream for RGB frames and a motion stream for optical flow frames.
Nieves Crasto   +3 more
semanticscholar   +1 more source

MARS: discovering novel cell types across heterogeneous single-cell experiments

open access: yesNature Methods, 2020
Although tremendous effort has been put into cell-type annotation, identification of previously uncharacterized cell types in heterogeneous single-cell RNA-seq data remains a challenge.
Maria Brbic   +6 more
semanticscholar   +1 more source

SEIS: Insight’s Seismic Experiment for Internal Structure of Mars

open access: yesSpace Science Reviews, 2019
By the end of 2018, 42 years after the landing of the two Viking seismometers on Mars, InSight will deploy onto Mars’ surface the SEIS (Seismic Experiment for Internal Structure) instrument; a six-axes seismometer equipped with both a long-period three ...
P. Lognonné   +186 more
semanticscholar   +1 more source

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