Results 51 to 60 of about 527 (254)
地球与行星物理论评Meteoroids entering the Earth's atmosphere lose most of their mass during atmospheric passage and considerably disturb the background ionosphere. To elucidate better the effects of meteoroids on the near-Earth space environment, it is important to ...
Yi Li +13 more
doaj +1 more source
Meteoroid Engineering Model (MEM): A Meteoroid Model For The Inner Solar System [PDF]
Earth, Moon, and Planets, 2004 In an attempt to overcome some of the deficiencies of existing meteoroid models, NASA’s Space Environments and Effects (SEE) Program sponsored a 3 year research effort at the University of Western Ontario. The resulting understanding of the sporadic meteoroid environment – particularly the nature and distribution of the sporadic sources – were then ...
H. Mcnamara +5 more
openaire +1 more source
Key Technical Fields and Future Outlooks of Space Manipulators: A Survey
SmartBot, EarlyView.This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen +12 more
wiley +1 more source
Solar-Terrestrial PhysicsThe Geminid meteor shower has been studied using data obtained by the method of baseline video observations during the period from December 01, 2021 to December 17, 2021.
Ivanov K. I. +2 more
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ATMOSPHERIC-SEISMIC EFFECT OF CHELYABINSK METEOROID
Radio Physics and Radio Astronomy, 2017 Purpose: The parameters of the shock-wave source in the atmosphere and seismic oscillations that this source caused are investigated Design/methodology/approach: The atmospheric and seismic processes caused by the passage and explosion of Chelyabinsk ...
L. F. Chernogor
doaj +1 more source
Strategic Management Journal, EarlyView.Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani +2 more
wiley +1 more source
Remote SensingInfrasound sensing plays a critical role in the detection and analysis of bolides, offering passive, cost-effective global monitoring capabilities. Key objectives include determining the timing, location, and yield of these events.
Elizabeth A. Silber
doaj +1 more source
TAXON, EarlyView.Abstract Freshwater Peridinium willei (Peridiniaceae) is globally distributed, but reports linking its morphologies with DNA sequence data remain scarce. The taxonomy of the species, and its infraspecific taxa, remain ambiguous due to the lack of DNA sequence data for the original and type material.
Arwin Ahmadpur +17 more
wiley +1 more source
Near-Earth Asteroids as Possible Parent Bodies of Meteor Streams [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The genetic relationship of meteor streams with near-Earth asteroids (NEAs) is being actively studied. A genetic link with the asteroid is possible only for streams in which meteoroids have the geocentric speed smaller than 50 km/s, thereby meaning the ...
M.G. Sokolova, M.V. Sergienko
doaj
Crystallization and 1.6 Å resolution crystal structure of an acylated GLP‐1/GIP analogue peptide
Acta Crystallographica Section F, EarlyView.The 1.6 Å resolution diffraction and subsequent structure solution of an acylated GLP‐1/GIP analogue lipopeptide is reported. This represents the first published data on the crystal structure of an unbound GLP‐1 and/or GIP analogue lipopeptide.With the meteoric rise in interest in GLP‐1 and GIP analogue peptides in recent years, there is a drive for ...
Hamish M. Mitchell +3 more
wiley +1 more source