Results 31 to 40 of about 37,687 (295)

A GRADIENT-REGION CONSTRAINED LEVEL SET METHOD FOR AUTONOMOUS ROCK DETECTION FROM MARS ROVER IMAGE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Rocks are one of the major Martian surface features and yield significant information about the relevant geology process and the life exploration. However, autonomous Martian rock detection is still a challenging task due to the appearance similar to the
J. Yang, Z. Kang
doaj   +1 more source

Validation of dMEREM, the Detailed Mars Energetic Radiation Environment Model, with RAD Data from the Surface of Mars

Frontiers in Astronomy and Space Sciences, 2022
The detailed Martian Energetic Radiation Environment Model (dMEREM) is a Geant4 based model developed for the European Space Agency, which enables to predict the radiation environment expected at different locations on the Martian orbit, atmosphere and ...
Patrícia Gonçalves, Patrícia Gonçalves, Luísa Arruda, Marco Pinto   +3 more
doaj   +1 more source

Investigation on Computing Method of Martian Dust Fluid Based on the Energy Dissipation Method

International Journal of Aerospace Engineering, 2020
In this paper, an initiative Martian dust fluid simulating research based on the energy dissipation method was developed to simulate the deposition process of Martian dust fluid which was caused by surface adhesion between particles and Martian rovers ...
Tianxiang Ding, Xuyan Hou, Man Li, Guangyu Cao, Jixuan Liu, Xianlin Zeng, Zongquan Deng   +6 more
doaj   +1 more source

The Mars system revealed by the Martian Moons eXploration mission

Earth, Planets and Space, 2022
Japan Aerospace Exploration Agency (JAXA) plans a Phobos sample return mission (MMX: Martian Moons eXploration). In this study, we review the related works on the past climate of Mars, its evolution, and the present climate and weather to describe the ...
Kazunori Ogohara, Hiromu Nakagawa, Shohei Aoki, Toru Kouyama, Tomohiro Usui, Naoki Terada, Takeshi Imamura, Franck Montmessin, David Brain, Alain Doressoundiram, Thomas Gautier, Takuya Hara, Yuki Harada, Hitoshi Ikeda, Mizuho Koike, François Leblanc, Ramses Ramirez, Eric Sawyer, Kanako Seki, Aymeric Spiga, Ann Carine Vandaele, Shoichiro Yokota, Antonella Barucci, Shingo Kameda   +23 more
doaj   +1 more source

The Martian Surface Pressure

The Astrophysical Journal, 1967
Inconsistency in Martian surface pressure as calculated by Gray explained, using Leighton and Murray ...
Ronald A. Schorn, Louise D. Gray
openaire   +1 more source

Martian meso/micro-scale winds and surface energy budget [PDF]

, 2011
Regional, diurnal and seasonal variations of surface temperature are particularly large on Mars. This is mostly due to the Martian surface remaining close to radiative equilibrium.
Forget, F., Hinson, D. P., Lewis, S. R., Madeleine, J.-B., Millour, E., Montabone, L., Spiga, A.   +6 more
core  

Characterization of the Martian Surface Layer [PDF]

Journal of the Atmospheric Sciences, 2009
Abstract The authors have estimated the diurnal evolution of Monin–Obukhov length, friction velocity, temperature scale, surface heat flux, eddy-transfer coefficients for momentum and heat, and turbulent viscous dissipation rate on the Martian surface layer for a complete sol belonging to the Pathfinder mission. All these magnitudes have
Martínez, Germán, Valero Rodríguez, Francisco, Vázquez Martínez, Luis   +2 more
openaire   +3 more sources

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

Heat Transfer, EarlyView.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source

ESTIMATION OF AEOLIAN DUNE MIGRATION OVER MARTIAN SURFACE EMPLOYING HIGH PRECISION PHOTOGRAMMETRIC MEASUREMENTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
At the present time, arguments continue regarding the migration speeds of Martian dune fields and their correlation with atmospheric circulation. However, precisely measuring the spatial translation of Martian dunes has been rarely successful due to the ...
J. Kim
doaj   +1 more source

Effects of Charged Martian Dust on Martian Atmosphere Remote Sensing

Remote Sensing, 2022
In this paper, the extinction property and optical depth of charged Martian dust at infrared band 3 THz–300 THz are studied using the Mie scattering theory.
Xuebang Gao, Li Xie, Xuqiang Dou, Jun Zhou   +3 more
doaj   +1 more source