Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Helena Ciechowska"'
Autor:
Marcin Grzesiak, Mariusz Pożoga, Barbara Matyjasiak, Dorota Przepiórka, Katarzyna Beser, Lukasz Tomasik, Hanna Rothkaehl, Helena Ciechowska
Publikováno v:
Remote Sensing, Vol 14, Iss 18, p 4655 (2022)
We try to assess the validity of assumptions taken when deriving drift velocity. We give simple formulas for characteristics of the spatiotemporal correlation function of the observed diffraction pattern for the frozen flow and the more general Brigg
Externí odkaz:
https://doaj.org/article/052e3f259cbf44cb90ad73bba5e39c46
Publikováno v:
ArchéoSciences. :147-150
– The final result of the project is to create a 2D model of the mine plan based on the results of the geophysical measurements. – ERT was chosen as the primary method in this project due to the fact that the voids and the air have a very high re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1f60c7a13993d4a4255a1ab37346dac
https://doi.org/10.4000/archeosciences.9184
https://doi.org/10.4000/archeosciences.9184
Autor:
Roman Wronowski, Lukasz Tomasik, Katarzyna Budzińska, Helena Ciechowska, Mariusz Pozoga, Marcin Grzesiak, Hanna Rothkaehl, Barbara Matyjasiak
Publikováno v:
2021 Signal Processing Symposium (SPSympo).
The aim of the study is to obtain quantitative information on the conditions of ionospheric plasma and its variability at mid-latitudes. For this purpose, we use the S4 scintillation index parameter, which is widely used in other diagnostic technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d015f2a1b3c3493ddeaa3c8e4519ab10
https://doi.org/10.1109/spsympo51155.2020.9593637
https://doi.org/10.1109/spsympo51155.2020.9593637
Autor:
Katarzyna Budzińska, Helena Ciechowska, Marcin Grzesiak, Łukasz Tomasik, Hanna Rothkaehl, Roman Wronowski, Barbara Matyjasiak, Mariusz Pozoga
Due to their low intensity, ionospheric scintillations in the middle latitude region are difficult to observe. However, scintillations intensity increases at lower frequencies. Those below 90 MHz, covered by LOFAR, enable scintillation measurements i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b0bccf9ebd5efd6cab5d31b92c818a0
https://doi.org/10.5194/egusphere-egu21-14374
https://doi.org/10.5194/egusphere-egu21-14374
Autor:
Helena Ciechowska, Aleksandra Fronczak, Maciej Karasewicz, Klaudia Mocek, Mikołaj Zawadzki, Marek Grad
October 31st of 2015 the bolide lightened up the sky above Northern Poland. The main purpose of the project was to define the place and time of its explosion in Earth’s atmosphere. To calculate these values and define the velocity of acoustic wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77d0e9c578efead1b19eba3acf94a4a5
https://doi.org/10.5194/egusphere-egu2020-5097
https://doi.org/10.5194/egusphere-egu2020-5097