Results 11 to 20 of about 239,302 (308)

Sodium Atoms in the Lunar Exotail: Observed Velocity and Spatial Distributions [PDF]

, 2011
The lunar sodium tail extends long distances due to radiation pressure on sodium atoms in the lunar exosphere. Our earlier observations measured the average radial velocity of sodium atoms moving down the lunar tail beyond Earth (i.e., near the anti ...
E.J. Mierkiewicz, F.L. Roesler, Haffner, Huebner, J.K. Wilson, L.M. Haffner, Lee, Matta, Mendillo, Michael R. Line, Mierkiewicz, Mierkiewicz, Potter, Press, R.J. Oliversen, Smith, Stern, Tyler, Wilson, Wilson   +19 more
core   +4 more sources

Nocturnal depth distribution of western North Atlantic swordfish (Xiphias gladius, Linnaeus, 1758) in relation to lunar illumination [PDF]

, 2007
Swordfish are known to undergo large diel vertical movements from surface waters at night to \u3e 300 m depth during the day. Evidence presented over the past several deeades suggests the lunar cycle affects these vertical migrations.
Loefer, J.L., McGovern, J.C., Sedberry, George R.   +2 more
core   +2 more sources

Recent progress in lunar dust migration and biological toxicity research

地球与行星物理论评, 2021
Lunar dust is easy to transport both vertically and horizontally, which affects the lunar surface material distribution, and the dusty plasma environment near the lunar surface.
Xiaoping Zhang, Hong Gan, Cunhui Li, Lianghai Xie, Yan Sun   +4 more
doaj   +1 more source

Toxicity of lunar dust

, 2012
The formation, composition and physical properties of lunar dust are incompletely characterised with regard to human health. While the physical and chemical determinants of dust toxicity for materials such as asbestos, quartz, volcanic ashes and urban ...
Alving, Asano, Basu, Bice Fubini, Bosquillon, Brain, Brown, Brunetto, Butler, Cain, Cain, Castranova, Castranova, Christoffersen, Dag Linnarsson, Damm, Darquenne, Darquenne, Darquenne, Darquenne, Darquenne, David J. Loftus, Dockery, Driscoll, Erin M. Tranfield, Ewing, Fanizza, Fenoglio, Fenoglio, Fenoglio, Fenoglio, Frampton, Fubini, Fubini, Fubini, Fubini, Fubini, Fubini, Fubini, Fubini, Fujishima, G. Kim Prisk, Gaier, Geiser, Gerde, Gerde, Ghiazza, Gustafsson, Hardy, Hardy, Harmsen, Heinrich, Hemmingsson, Heyder, Hill, Hong, Horanyi, Horwell, Horwell, Hurowitz, Ialenti, Ignarro, James, James, James Carpenter, Jones, Kamp, Kane, Karlsson, Khan-Mayberry, Kharitonov, Kharitonov, Kobrick, Lam, Lane, Lars L. Karlsson, Larsen, Latch, Lison, Lison, Liu, Liu, Loftus, Lucey, Lundberg, Lynch, MacLoughlin, McClellan, McKay, McKay, Moller, Mossman, Nel, Nel, Nemmar, Nikula, Norde, Oberdörster, Oberdörster, Oberdörster, Oberdörster, Park, Parsegian, Patil, Pauluhn, Pauluhn, Pawloski, Per Gerde, Persson, Peters, Peters, Peters, Peterson, Pezerat, Pope, Pope, Popov, Porter, Rask, Ricciardolo, Saffiotti, Sahai, Sakagami, Sakagami, Samet, Sanchez, Santana, Scheuch, Schwartz, Seagrave, Seaton, Seaton, Selg, Semmler, Shukla, Smaldone, Stahlhofen, Stanton, Sundblad, Taylor, Taylor, Taylor, Taylor, Thompson, Tranfield, Tronde, Tsuda, Turci, Turci, Urs Staufer, Vallyathan, van Eeden, von Klot, Wallace, Warheit, Warheit, West, Wim van Westrenen, Wong, Zanobetti   +159 more
core   +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

Tidal pattern instabilities on multi-moon planets [PDF]

, 2007
The equilibrium tide-generating forces in the lunar orbital plane of a planet of radius R are calculated for the case of N moons of mass M_i orbiting the planet at instantaneous polar coordinates (D_i, \alpha_i).
Furno, Joanna, Kuehn, Kerry
core   +2 more sources

Activity Patterns of Bharal (Pseudois nayaur) from a Subtropical Forest Area Based on Camera Trap Data

Diversity
Understanding the activity patterns of a species is essential for developing sound conservation and management plans. In this study, we used a camera-trapping technique to determine the activity patterns of bharal (Pseudois nayaur) in a marginal ...
Zhuo Tang, Wei Chen, Shufeng Wang, Zhouyuan Li, Tianpei Guan, Jian Yang   +5 more
doaj   +1 more source

Speckle Noise Reduction via Linewidth Broadening for Planetary Laser Reflectance Spectrometers

Remote Sensing
The low obliquity of the Moon leads to challenging solar illumination conditions at the poles, especially for passive reflectance measurements aimed at determining the presence and extent of surface volatiles.
Daniel R. Cremons, Gregory B. Clarke, Xiaoli Sun   +2 more
doaj   +1 more source

Research Status of Additive Manufacturing Lunar in-situ Forming Technology

Kuangchan zonghe liyong, 2023
This is an essay in the field of ceramics and composites. For decades, space exploration has been a hot topic. With the launch of Chang'e 5, China officially opened the first extraterrestrial celestial body sampling return journey.
Lingzhi Wu, Haiqing Yin, Cong Zhang, Ruijie Zhang, Yongwei Wang, Xue Jiang, Xuanhui Qu   +6 more
doaj   +1 more source

Long-term degradation of optical devices on the moon

, 2010
Forty years ago, Apollo astronauts placed the first of several retroreflector arrays on the lunar surface. Their continued usefulness for laser-ranging might suggest that the lunar environment does not damage optical devices.
Alley, C.D. Hoyle, C.W. Stubbs, E.G. Adelberger, E.L. Michelsen, Farrell, H.E. Swanson, Hapke, J.B.R. Battat, Kieffer, Peacock, Pearlman, R.J. McMillan, R.L. Samad, Shelus, Stubbs, T.W. Murphy   +16 more
core   +1 more source