Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ahmed Lethy"'
Autor:
Salah Saleh, Ahmed Saleh, A. E. El Emam, Ali M. Radwan, Ahmed Lethy, Hassan A. Khalil, Gad El-Qady
Publikováno v:
Pure and Applied Geophysics. 179:1981-1993
Geophysical surveys were conducted in the Lahun area (Fayoum, Egypt). The Lahun area is known to have been the royal necropolis during the period of Senusret II (1897–1878 BC), where he built his pyramid. Integrated magnetic and gravity measurement
Publikováno v:
Pure and Applied Geophysics. 179:599-618
Source parameters calculated from displacement spectra of both P and S waves are used to discriminate between earthquakes and quarry blasts in three regions of Egypt during the 2009–2015 period. We use vertical component seismograms from 440 earthq
East Cairo is characterized by abundant quarries that have been used as landfill sites for solid waste. These sites have become part of the urban sprawl of New Cairo, and their detection became difficult from the ground surface. In this study, analys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8392be6b31bae038ef30c01b0c55bb33
https://doi.org/10.21203/rs.3.rs-1691810/v1
https://doi.org/10.21203/rs.3.rs-1691810/v1
Autor:
Islam Hamama, Masa-yuki Yamamoto, Mohamed N. ElGabry, Noha Ismail Medhat, Hany S. Elbehiri, Adel Sami Othman, Mona Abdelazim, Ahmed Lethy, Sherif M. El-hady, Hesham Hussein
Publikováno v:
The Journal of the Acoustical Society of America. 151(3)
Chemical explosions are ground truth events that provide data, which, in turn, can enhance the understanding of wave propagation, damage assessment, and yield estimation. On 4 August 2020, Beirut, Lebanon was shocked by a catastrophic explosion, whic
Autor:
Ali G. Hafez, Akimasa Yoshikawa, Ahmed Lethy, Ashraf A. M. Khalaf, Omar M. Saad, Sarah A. Elgiddawy, Hesham F. A. Hamed
Publikováno v:
Arabian Journal for Science and Engineering. 46:901-908
This paper introduces a new technique in the automatic detection of storm sudden commencement (SC) using the discrete wavelet transform (DWT). A geomagnetic storm is a global simultaneous phenomenon affecting the whole Earth, which means that all gro
A combination of multiple discrimination artificial neural networks using different seismic source parameters is suggested using a committee machine. In this work, a committee machine was used to combine supervised and unsupervised artificial neural
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c451c48465f8fc358d277d72a7ed2e1
https://doi.org/10.21203/rs.3.rs-588073/v1
https://doi.org/10.21203/rs.3.rs-588073/v1
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
An archeological study using magnetic and ground-penetrating radar methods has been performed at the Dahshour region (Giza, Egypt), where various covered structures have not been found because of the long coercion of the zone under the military speci
Magnetotelluric loggers are key instruments for deep geophysical studies of crust and mantle. However, conducting a large-scale survey requires the implementation of a series of magnetotelluric instruments to complete the measurements in an efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::289e4e4bb918fd0345e7e07e2a0a9bc7
https://doi.org/10.5194/egusphere-egu21-16275
https://doi.org/10.5194/egusphere-egu21-16275
Publikováno v:
Space Weather. 16:1277-1290
Publikováno v:
NRIAG Journal of Astronomy and Geophysics, Vol 6, Iss 1, Pp 104-130 (2017)
The present work is a compilation of two tasks within the frame of the project “Geomagnetic Survey & Detailed Geomagnetic Measurements within the Egyptian Territory” funded by the “Science and Technology Development Fund agency (STDF)”. The N