Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Umut Sezen"'
Publikováno v:
Geodesy and Geodynamics, Vol 10, Iss 1, Pp 72-76 (2019)
Modeling Near Vertical Incidence Sounding (NVIS) High Frequency (HF) signal propagation in the ionosphere is important. Because, ionosondes which are special types of radars probing the ionosphere with certain HF frequencies (between 2 and 30 MHz), w
Externí odkaz:
https://doaj.org/article/26e50e414f734b659cff457e9df0d317
Publikováno v:
Geodesy and Geodynamics, Vol 9, Iss 6, Pp 425-431 (2018)
Ionosphere is the layer of atmosphere which plays an important role both in space based navigation, positioning and communication systems and HF signals. The structure of the electron density is a function of spatio-temporal variables. The electrodyn
Externí odkaz:
https://doaj.org/article/eb19fddb0e874097b36bc0965db89be4
Publikováno v:
Geodesy and Geodynamics, Vol 9, Iss 5, Pp 347-357 (2018)
Ionosphere is the most challenging part of Space Weather with its spatio-temporal variability and dispersive nature. Ionospheric models are very important in reducing positioning error in GNSS system. International Reference Ionosphere (IRI) is an em
Externí odkaz:
https://doaj.org/article/2d4ac831b4e24d4f8459dba26b506d79
Publikováno v:
Bilgi Dünyası, Vol 6, Iss 2, Pp 155-170 (2005)
Gün geçtikçe sayısal görüntü koleksiyonlarının sayısı hızla artmakta ve kullanıcıların aradıkları sayısal nesnelere erişim güçleşmektedir. Gerek bireyler gerekse kurumlar, görüntü arşivlerini yaratırlarken erişimde ciddi s
Externí odkaz:
https://doaj.org/article/e902e0e1f96b4e9bb975da6fe25e8c7a
Publikováno v:
Bilgi Dünyası, Vol 6, Iss 2, Pp 155-170 (2005)
Digital image collections are expanding day by day, and image retrieval becomes even harder. Both individuals and institutions encounter serious problems when building their image archives and later when retrieving the archived images. Visual informa
Externí odkaz:
https://doaj.org/article/ddb4dad5bd9b47b39578120cd7c1fa9d
Publikováno v:
Hacettepe Üniversitesi Edebiyat Fakültesi Dergisi, Vol 29, Iss 1, Pp 0-0 (2012)
Externí odkaz:
https://doaj.org/article/e62a58463fa545b1b01b1f767f3e23d8
Publikováno v:
Geodesy and Geodynamics, Vol 10, Iss 1, Pp 72-76 (2019)
Geodesy and Geodynamics
Geodesy and Geodynamics
Modeling Near Vertical Incidence Sounding (NVIS) High Frequency (HF) signal propagation in the ionosphere is important. Because, ionosondes which are special types of radars probing the ionosphere with certain HF frequencies (between 2 and 30 MHz), w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e5622529a5043e72084b59973f7e3b0
https://aperta.ulakbim.gov.tr/record/72877
https://aperta.ulakbim.gov.tr/record/72877
International Reference Ionosphere (IRI) is the international standard ionospheric climatic model. Since the original formation of the international task force in 1970s, the IRI model has been continuously improved by ingesting developments in resear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf61551a7b061c0bbc6b947bd2067e07
https://aperta.ulakbim.gov.tr/record/68953
https://aperta.ulakbim.gov.tr/record/68953
In view of the recent recalibration of the sunspot number time series SSN2, a need has arisen to re-evaluate solar and ionospheric indices in the International Reference Ionosphere, IRI, and its extension to the Plasmasphere, IRI-Plas models, which a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6ec682cf5aee1596bd4e5530385e4b4
https://aperta.ulakbim.gov.tr/record/34605
https://aperta.ulakbim.gov.tr/record/34605
Publikováno v:
Advances in Space Research. 55:2106-2113
Global and regional behavior of the ionosphere is an important component of space weather. The peak height and critical frequency of ionospheric layer for the maximum ionization, namely, hmF2 and foF2, and the total number of electrons on a ray path,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0628830033c96db3482b76d03dbe3c7
https://doi.org/10.1016/j.asr.2014.10.016
https://doi.org/10.1016/j.asr.2014.10.016