Results 11 to 20 of about 18,734 (209)

Modular Platform for Rapidly Investigating Long-Distance Propagation of Human Neural Network Activity. [PDF]

open access: yesAdv Healthc Mater
This study presents the first human neural organoid culture model capable of rapidly exhibiting long‐distance neural network propagation, thus delivering a system to experimentally investigate large‐scale communication during normal and diseased states.
Patel MD   +6 more
europepmc   +2 more sources

Performance Constraints of All-Perovskite Tandem Solar Cells in Low-Intensity, Low-Temperature Environments. [PDF]

open access: yesAdv Mater
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Ozen S   +10 more
europepmc   +2 more sources

The First Instrumentally Documented Fall of an Iron Meteorite: Orbit and Possible Origin

open access: yesThe Astrophysical Journal, 2023
A bright fireball observed on 2020 November 7, over Scandinavia, produced the first iron meteorite with a well-determined pre-atmospheric trajectory.
Ihor Kyrylenko   +7 more
doaj   +1 more source

Ryugu’s observed volatile loss did not arise from impact heating alone

open access: yesCommunications Earth & Environment, 2021
The loss of volatile material from asteroid Ryugu was not caused solely by heating from hypervelocity impacts as previously believed, suggest impact experiments conducted at speeds comparable to those expected in the main asteroid ...
Kosuke Kurosawa   +5 more
doaj   +1 more source

The physical and dynamical characteristics of the asteroid 4940 Polenov [PDF]

open access: yesSerbian Astronomical Journal, 2021
The asteroid (1986 QY4) 4940 Polenov is the first Solar system object whose 3D shape is determined using the observations from the newly built Astronomical Station Vidojevica (ASV).
Vchkova-Bebekovska E.   +5 more
doaj   +1 more source

The breakup of the L-chondrite parent body 466 Ma and its terrestrial effects – a search for a mid-Ordovician biodiversity event [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
About a third of all meteorites that fall on Earth today, the stony L-chondrites, originate from a major breakup event in the asteroid belt 466 Ma, in the early Darriwilian.
Birger Schmitz, Fredrik Terfelt
doaj   +1 more source

Thermophysical Investigation of Asteroid Surfaces. II. Factors Influencing Grain Size

open access: yesThe Planetary Science Journal, 2022
Asteroid surfaces are subjected to mechanical weathering processes that result in the development and evolution of regolith. Two proposed mechanisms—impact bombardment and thermal fatigue—have been proposed as viable and dominant weathering processes ...
Eric M. MacLennan, Joshua P. Emery
doaj   +1 more source

Perturbations Due to the Asteroid Belt [PDF]

open access: yesInternational Astronomical Union Colloquium, 1983
AbstractA new expansion for the gravitational potential of the asteroid belt is derived in this paper on the basis of binomial expansions. Its advantages are: (1)the unified form both for the inner and for the outer regions of the belt; (2)suitability for discussing the motions of the celestial bodies with perihelions within but apohelions beyond the ...
Tong Fu, Chen Zhen
openaire   +1 more source

On nature of evolution of short-period comets. On the question of short-period comets evolution

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007
The main hypothesis of short-period comets evolution are considered. Basing on the performed researches we conclude that the main sources of short-period comets are: main asteroid belt, relict asteroid belts between giant planets and the Kuiper belt.
A. F. Zausaev, A. A. Zausaev
doaj   +1 more source

Sonification of Planetary Orbits in Asteroid Belts [PDF]

open access: yesAudio Mostly 2021, 2021
This study investigates the design and evaluation of a sonification designed to detect any planets orbiting within an asteroid belt of an exosolar system. The interface was designed for an astronomer who studies this phenomenon. User centered design methods were applied to create an accurate sonification of the data that could allow the astronomer to ...
Michael Quinton   +2 more
openaire   +1 more source

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