Results 11 to 20 of about 28,496 (163)
Fractal nature of galaxy clustering in the updated CfA redshift catalog [PDF]
Scientific ReportsWe have recently argued that the expansion of the Universe is compatible not only with standard homogeneity, but also with fractal homogeneity in a hierarchical fractal cosmology.
Wiesław M. Macek, Dariusz Wójcik
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The Astrophysical Journal Letters, 2023 We employ the differential evolution (DE) method to analyze observations from the Solar X-Ray Monitor on board the Chandrayaan-2 spacecraft. DE belongs to the family of evolutionary algorithms that find solutions using mechanisms inspired by biological ...
Anna Kępa +4 more
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Impedance Control Using Selected Compliant Prismatic Joint in a Free-Floating Space Manipulator
Aerospace, 2022 The success of space missions like capture-and-deorbit or capture-and-service relies on the ability of the capturing satellite to establish a stable mechanical connection by its gripping tool with the object being intercepted.
Piotr Palma, Karol Seweryn, Tomasz Rybus
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Archive for Mathematical Logic, 2023 AbstractThis paper is concerned with the proper way to effectivize the notion of a Polish space. A theorem is proved that shows the recursive Polish space structure is not found in the effectively open subsets of a space $${\mathcal {X}}$$ X , and we explore strong evidence that the effective structure is instead ...
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Analyses of zonal atmospheric excitation functions and their correlation with polar motion excitation functions [PDF]
Annales Geophysicae, 1997 The atmospheric influence on the Earth's, rotation can be described by the effective atmospheric angular momentum (EAAM) functions. In this study we focus on the analysis of short period variations of the equatorial components of the zonal EAAM ...
J. Nastula, W. Kosek, B. Kolaczek
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GOVSATCOM makes EU stronger on security and defence
Security and Defence Quarterly, 2020 Objectives Publication identifies the meaning of Governmental Satellite Communication Govsatcom and presents a hypothesis related to the demand for this type of satellite communication. It describes engagement of main involved institutions i.e. European
Rafał Borek +2 more
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Computability on Quasi-Polish Spaces [PDF]
, 2019 We investigate the effectivizations of several equivalent definitions of quasi-Polish spaces and study which characterizations hold effectively. Being a computable effectively open image of the Baire space is a robust notion that admits several characterizations. We show that some natural effectivizations of quasi-metric spaces are strictly stronger.
Hoyrup, Mathieu +3 more
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Noetherian Quasi-Polish Spaces
CoRR, 2016 info:eu-repo/semantics ...
Matthew de Brecht, Arno Pauly
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Earth, Planets and Space, 2021 In geodesy, a key application of data from the Gravity Recovery and Climate Experiment (GRACE), GRACE Follow-On (GRACE-FO), and Satellite Laser Ranging (SLR) is an interpretation of changes in polar motion excitation due to variations in the Earth’s ...
Justyna Śliwińska +2 more
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Ionizing radiation resilience: how metabolically active lichens endure exposure to the simulated Mars atmosphere [PDF]
IMA FungusTo deepen our understanding of lichen adaptation and their potential to colonize extraterrestrial environments, we aimed to identify physiological/biochemical responses of selected lichen species in a metabolically active state to simulated Mars-like ...
Kaja Skubała +6 more
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