Results 31 to 40 of about 28,496 (163)

Analysis of Large Geomagnetically Induced Currents During the 7–8 September 2017 Storm: Geoelectric Field Mapping

open access: yesSpace Weather, 2023
High temporal and high spatial resolution geoelectric field models of two Mäntsälä, Finnish pipeline geomagnetically induced current (GIC) intervals that occurred within the 7–8 September 2017 geomagnetic storm have been made.
Anna Wawrzaszek   +4 more
doaj   +1 more source

Validation of GRACE and GRACE-FO Mascon Data for the Study of Polar Motion Excitation

open access: yesRemote Sensing, 2021
In this study, we calculate the hydrological plus cryospheric excitation of polar motion (hydrological plus cryospheric angular momentum, HAM/CAM) using mascon solutions based on observations from the Gravity Recovery and Climate Experiment (GRACE) and ...
Justyna Śliwińska   +2 more
doaj   +1 more source

ASTEROID (21) LUTETIA: SEMI-AUTOMATIC IMPACT CRATERS DETECTION AND CLASSIFICATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The need to develop an automated method, independent of lighting and surface conditions, for the identification and measurement of impact craters, as well as the creation of a reliable and efficient tool, has become a justification of our studies.
M. Jenerowicz, M. Banaszkiewicz
doaj   +1 more source

Polish G-spaces and continuous logic

open access: yesAnnals of Pure and Applied Logic, 2017
54 pages, Section 3 is ...
Aleksander Ivanov   +1 more
openaire   +4 more sources

POLISH SPACES OF BANACH SPACES: COMPLEXITY OF ISOMETRY AND ISOMORPHISM CLASSES

open access: yesJournal of the Institute of Mathematics of Jussieu, 2023
AbstractWe study the complexities of isometry and isomorphism classes of separable Banach spaces in the Polish spaces of Banach spaces, recently introduced and investigated by the authors in [14]. We obtain sharp results concerning the most classical separable Banach spaces.We prove that the infinite-dimensional separable Hilbert space is characterized
Marek Cúth   +3 more
openaire   +3 more sources

Multifractality in Humanitarian Applications: A Case Study of Internally Displaced Persons/Refugee Camps

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
The coordination of humanitarian relief is always difficult due to a lack of data required for management and planning. Remote sensing imagery can be an important source of information about the in-situ situation, notably, no-access areas.
Malgorzata Jenerowicz   +4 more
doaj   +1 more source

Design and Development of Two Manipulators as a Key Element of a Space Robot Testing Facility

open access: yesArchive of Mechanical Engineering, 2015
Podczas procesu projektowania układów sterowania robotów pracujących w warunkach mikrograwitacji niezbędna jest możliwość przeprowadzenia ich walidacji w relewantnym środowisku.
Seweryn Karol   +4 more
doaj   +1 more source

Isometry of Polish metric spaces

open access: yesAnnals of Pure and Applied Logic, 2012
The author shows that any equivalence relation induced by a Polish group action can be Borel reduced to the relation of isometry of Polish metric spaces. This result has been independently obtained by \textit{S. Gao} and \textit{A. S. Kechris} [``On the classification of Polish metric spaces up to isometry'', Mem. Am. Math. Soc. 766, 78 p.
openaire   +1 more source

Self-Adjusting Thresholding for Burnt Area Detection Based on Optical Images

open access: yesRemote Sensing, 2019
Mapping of regional fires would make it possible to analyse their environmental, social and economic impact, as well as to develop better fire management systems.
Edyta Woźniak   +1 more
doaj   +1 more source

STIX observation of chromospheric evaporation

open access: yesAstronomy & Astrophysics
Context. Hard X-rays (HXRs) offer the most direct insight into nonthermal electron populations in solar flares, presenting an essential tool for investigating the physical states within flaring structures.
Mikuła K., Mrozek T., Kułaga K.
doaj   +1 more source

Home - About - Disclaimer - Privacy