Results 51 to 60 of about 10,691 (260)
Geophysical Research Letters, 2023 Small meteoroids that enter Earth's atmosphere often go unnoticed because their detection and characterization rely on human observations, introducing observational biases in space and time.
Stephen P. Hicks +10 more
doaj +1 more source
The local dust foregrounds in the microwave sky: I. Thermal emission spectra
, 2009 Analyses of the cosmic microwave background (CMB) radiation maps made by the Wilkinson Microwave Anisotropy Probe (WMAP) have revealed anomalies not predicted by the standard inflationary cosmology.
Dikarev, V. +4 more
core +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
On the Proposed Interstellar Origin of the USG 20140108 Fireball
The Astrophysical Journal, 2023 A critical review of the evidence for the interstellar origin of the USG 20140108 fireball is presented. Examining United States Government (USG) fireball velocities where independent data are available shows the former to have significant (10–15 km s ...
Peter G. Brown, Jiří Borovička
doaj +1 more source
Mercurian impact ejecta: Meterorites and mantle
, 2008 We have examined the fate of impact ejecta liberated from the surface of Mercury due to impacts by comets or asteroids, in order to study (1) meteorite transfer to Earth, and (2) re-accumulation of an expelled mantle in giant-impact scenarios seeking to ...
Artemieva +22 more
core +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
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
RADIANTS AND ORBITAL DISTRIBUTION OF TV FAINT SPORADIC METEORS
Odessa Astronomical Publications, 2018 Double station meteor observation using TV CCD unintensified techniques was started in 2013 in Nikolaev astronomical observatory (RI NAO). During observational campaign in 2013-2016 catalog containing 1055 meteoroid orbits has been obtained.
M. O. Kulichenko, A. V. Shulga
doaj +1 more source
Quasi‐BIC and Reflective Mode Coupling Drives SHG Beyond the Q Factor Limit
Small, EarlyView.An analytical expression is developed to relate second‐harmonic generation to both the resonance Q factor and absorptance. Simulations and experiments on a dual‐resonance 3R‐MoS2 metasurface validate the formula, showing that absorptance engineering provides an effective route to enhance SHG beyond conventional Q‐only design.
Wenkai Yang +8 more
wiley +1 more source
SMALL VELOCITIES OF METEOROIDS: INTERRELATION OF SOLAR SYSTEM SMALL BODIES
Odessa Astronomical Publications, 2017 Reality and dynamical connection of meteoroids with small velocities are discussed.
V. V. Andreev
doaj +1 more source