Results 11 to 20 of about 133,554 (298)

Refined Composite Multiscale Fluctuation Dispersion Entropy and Supervised Manifold Mapping for Planetary Gearbox Fault Diagnosis

Machines, 2023
A novel fault diagnosis scheme was developed to address the difficulty of feature extraction for planetary gearboxes using refined composite multiscale fluctuation dispersion entropy (RCMFDE) and supervised manifold mapping. The RCMFDE was first utilized
Haocheng Su, Zhenya Wang, Yuxiang Cai, Jiaxin Ding, Xinglong Wang, Ligang Yao   +5 more
doaj   +3 more sources

A Semantic View on Planetary Mapping—Investigating Limitations and Knowledge Modeling through Contextualization and Composition

Remote Sensing, 2023
The concept of planetary mapping constitutes different activities within different contexts. Much like the field of cartography, it is an amalgamation of science, techniques, and artistic disciplines.
Stephan van Gasselt, Andrea Nass
doaj   +3 more sources

Robotic Mapping Approach under Illumination-Variant Environments at Planetary Construction Sites

Remote Sensing, 2022
In planetary construction, the semiautonomous teleoperation of robots is expected to perform complex tasks for site preparation and infrastructure emplacement. A highly detailed 3D map is essential for construction planning and management.
Sungchul Hong, Pranjay Shyam, Antyanta Bangunharcana, Hyuseoung Shin   +3 more
doaj   +3 more sources

Visual SLAM-Based Robotic Mapping Method for Planetary Construction

Sensors, 2021
With the recent discovery of water-ice and lava tubes on the Moon and Mars along with the development of in-situ resource utilization (ISRU) technology, the recent planetary exploration has focused on rover (or lander)-based surface missions toward the ...
Sungchul Hong, Antyanta Bangunharcana, Jae-Min Park, Minseong Choi, Hyu-Soung Shin   +4 more
doaj   +3 more sources

Cartographic Metadata for Improving Accessibility and Facilitating Knowledge Extraction and Validation in Planetary Mapping Based on Remote-Sensing Observations

ISPRS International Journal of Geo-Information
The field of planetary mapping and cartography builds almost exclusively on remote-sensing data and can be defined by three distinct concepts: systematic imaging as performed through spacecraft surveying, reference mapping as performed through the ...
Stephan van Gasselt, Andrea Naß
doaj   +3 more sources

Cloud Atlas: High-Contrast Time-Resolved Observations of Planetary-Mass Companions [PDF]

, 2019
Directly-imaged planetary-mass companions offer unique opportunities in atmospheric studies of exoplanets. They share characteristics of both brown dwarfs and transiting exoplanets, therefore, are critical for connecting atmospheric characterizations for
Apai, Dániel, Bedin, Luigi R., Burgasser, Adam J., Cowan, Nicolas B., karalidi, Theodora, Lew, Ben W. P., Lowrance, Patrick J., Manjavacas, Elena, Marley, Mark S., Metchev, Stanimir, Miels-Páez, Paulo A., Radigan, Jacqueline, Schneider, Glenn, Zhou, Yifan   +13 more
core   +4 more sources

A Comparison and Review of Surface Detection Methods Using MBL, MABEL, and ICESat-2 Photon-Counting Laser Altimetry Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) was launched on September 15, 2018. It is the first photon-counting laser altimeter satellite, which is of great significance for the research into laser altimetry.
Huan Xie, Qi Xu, Dan Ye, Jianghao Jia, Yuan Sun, Peiqi Huang, Ming Li, Shijie Liu, Feng Xie, Xiaolong Hao, Xiaohua Tong   +10 more
doaj   +1 more source

Geology of the Kuiper quadrangle (H06), Mercury

Journal of Maps, 2022
The Kuiper quadrangle (H06) is located at the equatorial zone of Mercury and encompasses the area between 288°E – 360°E and 22.5°N – 22.5°S. Using the NASA MESSENGER data, we compiled a geological map of the quadrangle at a 1:3,000,000 scale. The mapping
L. Giacomini, V. Galluzzi, M. Massironi, L. Ferranti, P. Palumbo   +4 more
doaj   +1 more source

Shape Reconstruction and Rotation Axis Estimation of Small Bodies Based on Structure-from-Motion [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Shape reconstruction and rotation axis estimation of small bodies essential for both engineering applications and scientific investigations. This paper presents a Structure-from-Motion-based (SFM) method for small body shape reconstruction and rotation ...
H. Xie, Y. Wang, X. Yan, M. Yang, Y. Wang, X. Tong   +5 more
doaj   +1 more source

3D Discrete element method modeling of the cone penetration test in lunar regolith simulant with various internal friction angles

Geo-spatial Information Science
The mechanical behavior of lunar regolith is highly influenced by its diverse mechanical properties, which are critical for geotechnical engineering activities during lunar exploration missions.
Siji Sanlang, Chao Wang, Xiaohua Tong, Huan Xie, Yongjiu Feng, Jia Li, Mingjing Jiang, Xiong Xu, Yanmin Jin   +8 more
doaj   +1 more source