منابع مشابه
Impact History of Eros: Craters and Boulders
Preliminary measurements of craters and boulders have been made in various locations on Eros from images acquired during the first nine months of NEAR Shoemaker’s orbital mission, including the October 2000 low altitude flyover. (We offer some very preliminary, qualitative analysis of later LAF images and very highresolution images obtained during NEAR’s landing on 12 February 2001). Craters on...
متن کاملTertiary Boulders in the Cretaceous of Puerto Rico.
Quantitative Stfdies on Proteolipide as Incitant of Disseminated Encephalomyelitis in Mice: Chloe Tal and Peter K. Olitsky 420 Fluorescence in -Ultraviolet Light jn--the Study of Boron Deficiency in Celery: Arthur B. Spurt 421 Absence of PhotoiWn in Tl Bacteriophage Irradiated with Ultraviolet in the Dry tate: Ruth F. ill and Harald H. Rous_ _ ---____ _ _ _ 424 Greater Resistance of, the Female...
متن کاملBryophytes on Boulders Diversity, habitat preferences and conservation aspects
Weibull, H. 2000. Bryophytes on boulders diversity, habitat preferences and conservation aspects. Doctor’s dissertation. ISSN 1401-6230, ISBN 91-576-5893-5 The influence of different overstorey tree species on the floristic composition of bryophytes growing on boulders was studied in two deciduous forests. Covering tree species and amount of litter were the factors explaining most of the variat...
متن کاملPushing Boulders Uphill: The Difficulty of Network Intrusion Recovery
One of the most significant unsolved problems for network managers and system administrators is how to repair a network infrastructure after discovering evidence of an extensive compromise. The technical issues are compounded by a breathtaking variety of human factors. We present a study of three significant compromises of a medium-scale network infrastructure. We do so as a way to expose the d...
متن کاملBoulders on asteroid Toutatis as observed by Chang’e-2
Boulders are ubiquitously found on the surfaces of small rocky bodies in the inner solar system and their spatial and size distributions give insight into the geological evolution and collisional history of the parent bodies. Using images acquired by the Chang'e-2 spacecraft, more than 200 boulders have been identified over the imaged area of the near-Earth asteroid Toutatis. The cumulative bou...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1878
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800151313