Results 171 to 180 of about 2,638 (227)
A probable ancient nearshore zone in southern Utopia on Mars unveiled from observations at the Zhurong landing area. [PDF]
Sci RepWu B +14 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Clinics in Dermatology, 2021
Fifty years ago, in 1970, a lunar crater was named in honor of Avicenna, one of the most influential physicians of the Medieval period. His encyclopedic work, The Canon of Medicine, attempted to codify all medical knowledge including dermatology. This contribution provides a brief overview of Avicenna, his contributions to medicine and dermatology, and
openaire +2 more sources
Fifty years ago, in 1970, a lunar crater was named in honor of Avicenna, one of the most influential physicians of the Medieval period. His encyclopedic work, The Canon of Medicine, attempted to codify all medical knowledge including dermatology. This contribution provides a brief overview of Avicenna, his contributions to medicine and dermatology, and
openaire +2 more sources
Lunar regolith thickness deduced from concentric craters in the CE-5 landing area
Icarus, 2019 Lunar regolith is the layer of fragmented and unconsolidated rock material that is repeatedly stirred and overturned on the lunar surface. It can provide critical information about lunar geologic processes (e.g., impact, volcanism) and the space ...
Zongyu Yue, G Michael, M Jia
exaly +2 more sources
Proceeding of the 2011 IEEE International Conference on Space Science and Communication (IconSpace), 2011
This project focuses on identification of craters in terms of its characteristics and detection of these visual features of the moon to determine a safe landing site for a lunar Lander. Cheng et al. proposed using craters as landmarks for navigation purposes because this geometric model grants a robust detection under different lighting conditions ...
Nur Diyana Kamarudin +2 more
openaire +1 more source
This project focuses on identification of craters in terms of its characteristics and detection of these visual features of the moon to determine a safe landing site for a lunar Lander. Cheng et al. proposed using craters as landmarks for navigation purposes because this geometric model grants a robust detection under different lighting conditions ...
Nur Diyana Kamarudin +2 more
openaire +1 more source
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1977
Abstract The form of the lunar impact crater size-frequency distribution is discussed. Latest results on the lunar cratering chronology in the first 1.5 Ga after its formation are reviewed. It is shown that most cratering arguments speak against an extraordinary high flux increase (‘cataclysm’) at ca. 4 Ga ago.
openaire +1 more source
Abstract The form of the lunar impact crater size-frequency distribution is discussed. Latest results on the lunar cratering chronology in the first 1.5 Ga after its formation are reviewed. It is shown that most cratering arguments speak against an extraordinary high flux increase (‘cataclysm’) at ca. 4 Ga ago.
openaire +1 more source
CONVECTIVE ORIGIN OF LUNAR CRATERS
Annals of the New York Academy of Sciences, 1965info:eu-repo/semantics ...
openaire +2 more sources
Nuncius, 2020
Abstract This article traces the story of three amateur astronomers who created relief models to help them depict the changing illumination of certain lunar craters, examples of which can be found in UK museum collections today. English chemist Henry Blunt (1806–1853) adopted the emerging technology of electrotyping to reproduce and distribute his ...
openaire +1 more source
Abstract This article traces the story of three amateur astronomers who created relief models to help them depict the changing illumination of certain lunar craters, examples of which can be found in UK museum collections today. English chemist Henry Blunt (1806–1853) adopted the emerging technology of electrotyping to reproduce and distribute his ...
openaire +1 more source
Icarus, 1969
Abstract Measurement of crater circularity for 487 craters has shown that there are at least two populations of craters, the circularity of which appears to decrease with increasing age. Central peak formation is not confined to either population, but the subcircular population appears to be located preferentially around the circular maria.
Joel E.M. Adler, John W. Salisbury
openaire +1 more source
Abstract Measurement of crater circularity for 487 craters has shown that there are at least two populations of craters, the circularity of which appears to decrease with increasing age. Central peak formation is not confined to either population, but the subcircular population appears to be located preferentially around the circular maria.
Joel E.M. Adler, John W. Salisbury
openaire +1 more source
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1967
Recognition thresholds for lunar crater size were determined, analytically, for various look angles and magnifications, at an orbital altitude of 80 nautical miles. Elliptical image measurements for various sized craters were combined with some previous threshold recognition data for the ellipse (Casperson, 1950).
James Wilde +2 more
openaire +1 more source
Recognition thresholds for lunar crater size were determined, analytically, for various look angles and magnifications, at an orbital altitude of 80 nautical miles. Elliptical image measurements for various sized craters were combined with some previous threshold recognition data for the ellipse (Casperson, 1950).
James Wilde +2 more
openaire +1 more source