Results 21 to 30 of about 7,347,743 (318)

Numerical Simulation of the Lunar Polar Environment: Implications for Rover Exploration Challenge

Aerospace, 2023
The lunar polar regions are key areas for future exploration due to the long-term continuous illumination and persistently shadowed regions that can cold trap abundant water and other volatiles.
Hong Gan, Chengxuan Zhao, Guangfei Wei, Xiongyao Li, Guojun Xia, Xiao Zhang, Jingjing Shi   +6 more
doaj   +1 more source

Learn Generalization Feature via Convolutional Neural Network: A Fault Diagnosis Scheme Toward Unseen Operating Conditions

IEEE Access, 2020
In recent years, Convolutional neural networks (CNNs) have achieved start-of-art performance in the fault diagnosis field. If there is no available information on the unseen operating conditions, the model trained on the seen operating condition cannot ...
Yuantao Yang, Jiancheng Yin, Huailiang Zheng, Yuqing Li, Minqiang Xu, Yushu Chen   +5 more
doaj   +1 more source

Alignment determination of the Hayabusa2 laser altimeter (LIDAR)

Earth, Planets and Space, 2021
In this study, we determined the alignment of the laser altimeter aboard Hayabusa2 with respect to the spacecraft using in-flight data. Since the laser altimeter data were used to estimate the trajectory of the Hayabusa2 spacecraft, the pointing ...
Hirotomo Noda, Hiroki Senshu, Koji Matsumoto, Noriyuki Namiki, Takahide Mizuno, Seiji Sugita, Shinsuke Abe, Hiroshi Araki, Kazuyoshi Asari, Yuichiro Cho, Atsushi Fujii, Masahiko Hayakawa, Arika Higuchi, Naoyuki Hirata, Naru Hirata, Chikatoshi Honda, Rie Honda, Yoshiaki Ishihara, Shingo Kameda, Shota Kikuchi, Toru Kouyama, Moe Matsuoka, Yuya Mimasu, Tomokatsu Morota, Satoru Nakazawa, Kazunori Ogawa, Naoko Ogawa, Go Ono, Shoko Oshigami, Takanao Saiki, Naoya Sakatani, Sho Sasaki, Hirotaka Sawada, Makoto Shizugami, Hidehiko Suzuki, Tadateru Takahashi, Yuto Takei, Satoshi Tanaka, Eri Tatsumi, Fuyuto Terui, Yuichi Tsuda, Seiitsu Tsuruta, Sei-ichiro Watanabe, Manabu Yamada, Ryuhei Yamada, Tomohiro Yamaguchi, Keiko Yamamoto, Yasuhiro Yokota, Fumi Yoshida, Kent Yoshikawa, Makoto Yoshikawa, Kazuo Yoshioka   +51 more
doaj   +1 more source

Exploration of energization and radiation in geospace (ERG): challenges, development, and operation of satellite systems

Earth, Planets and Space, 2018
The exploration of energization and radiation in geospace (ERG) satellite, nicknamed “Arase,” is the second satellite in a series of small scientific satellites created by the Institute of Space and Astronautical Science of the Japan Aerospace ...
Yosuke Nakamura, Seisuke Fukuda, Yasuko Shibano, Hiroyuki Ogawa, Shin-ichiro Sakai, Shigehito Shimizu, Ersin Soken, Yu Miyazawa, Hiroyuki Toyota, Akio Kukita, Yusuke Maru, Junichi Nakatsuka, Tomohiko Sakai, Shinsuke Takeuchi, Kenichiro Maki, Makoto Mita, Emiko Ogawa, Yuya Kakehashi, Kumi Nitta, Kazushi Asamura, Takeshi Takashima, Iku Shinohara   +21 more
doaj   +1 more source

A curation for uncontaminated Hayabusa2-returned samples in the extraterrestrial curation center of JAXA: from the beginning to present day

Earth, Planets and Space, 2023
Developing a cleanroom and clean chambers (CCs) for Hayabusa2 returned samples has been discussed with the committee for Hayabusa2 sample curation facility since 2015.
Toru Yada, Masanao Abe, Masahiro Nishimura, Hirotaka Sawada, Ryuji Okazaki, Yoshinori Takano, Kanako Sakamoto, Tatsuaki Okada, Aiko Nakato, Miwa Yoshitake, Yuki Nakano, Kasumi Yogata, Akiko Miyazaki, Shizuho Furuya, Ayako S. Iwamae, Shunichi Nakatsubo, Kentaro Hatakeda, Yuya Hitomi, Kazuya Kumagai, Shino Suzuki, Yayoi N. Miura, Motoo Ito, Naotaka Tomioka, Masayuki Uesugi, Yuzuru Karouji, Kentaro Uesugi, Naoki Shirai, Akira Yamaguchi, Naoya Imae, Hiroshi Naraoka, Yuhji Yamamoto, Shogo Tachibana, Hisayoshi Yurimoto, Tomohiro Usui   +33 more
doaj   +1 more source

Experimental study on electrostatic migration of different mineral particles composing lunar dust under electron irradiation

Frontiers in Astronomy and Space Sciences, 2023
Dust electrostatic migration is one of the primary causes of dust events on the surface of airless celestial bodies, which can result in multiple dust phenomena, including lunar horizon glow and dust pools, and also offer crucial insights into the ...
Hong Gan, Guangfei Wei, Guangfei Wei, Xiao Zhang, Xiao Zhang, Guojun Xia, Guojun Xia, Jingjing Shi   +7 more
doaj   +1 more source

Laboratory construction and curation scheme for returned samples of the chang’e-5 mission

Geoscience Letters, 2022
The analysis of samples returned from a planetary body is important to understand the origin, composition, evolution, and interactions with space or atmospheric weathering of the planet. In particular, pristine rocks, which are not affected by weathering,
Hongwei Yang, Ruihong Yang, Qian Wang
doaj   +1 more source

Space Exploration via Proximity Search [PDF]

, 2014
We investigate what computational tasks can be performed on a point set in $\Re^d$, if we are only given black-box access to it via nearest-neighbor search.
Har-Peled, Sariel, Kumar, Nirman, Mount, David M., Raichel, Benjamin   +3 more
core   +2 more sources

InSituNet: Deep Image Synthesis for Parameter Space Exploration of Ensemble Simulations [PDF]

IEEE Transactions on Visualization and Computer Graphics, 2019
We propose InSituNet, a deep learning based surrogate model to support parameter space exploration for ensemble simulations that are visualized in situ.
Wenbin He, Junpeng Wang, Hanqi Guo, Ko-Chih Wang, Han-Wei Shen, Mukund Raj, Y. Nashed, T. Peterka   +7 more
semanticscholar   +1 more source

A Global Space Policy that would revive Space Exploration [PDF]

, 2011
Almost every nation today relies on space-based technology for communications, weather forecasting, satellite navigation and resource management, either through ndigenous programs or through programs run by its allies.
Birch, Philip, Chatwin, Chris, Sharma, Tanay, Young, Rupert   +3 more
core   +2 more sources