Zobrazeno 1 - 10
of 93
pro vyhledávání: '"David Gómez Ortiz"'
Autor:
Stephen E. Ekwok, Ahmed M. Eldosouky, Ogiji-Idaga M. Achadu, Anthony E. Akpan, Luan Thanh Pham, Kamal Abdelrahman, David Gómez-Ortiz, Ubong C. Ben, Mohammed S. Fnais
Publikováno v:
Journal of King Saud University: Science, Vol 34, Iss 8, Pp 102288- (2022)
Lineament detector and depth estimation method involving modern aeromagnetic data were employed to study parts of the Obudu Plateau and Lower Benue Trough (southeast Nigeria) with the aim of mapping thermo-tectonic geologic structures and estimating
Externí odkaz:
https://doaj.org/article/f26d861e3b024699a1a62a3ae04f249a
Autor:
David Gómez-Ortiz, Adrián M. Garza-Gangemi, Mariano Oropeza-Aguilar, Sergio Rangel-Suárez, Verónica Espinosa-Cruz, Antonio C. Villegas-Hernández, Ricardo Martínez-Martínez, Ricardo A. Castillejos-Molina
Publikováno v:
Revista de Investigación Clínica, Vol 74, Iss 4 (2022)
Background: Multiparametric magnetic resonance imaging improves the performance of prostate cancer (PCa) diagnostics through a better selection of patients. Objectives: The aim of the study was to study the detection rate (DR) of systematic and targe
Externí odkaz:
https://doaj.org/article/e7344727eaa84a31aef296a28148f4cf
Autor:
Ubong C. Ben, Stephen E. Ekwok, Anthony E. Akpan, Charles C. Mbonu, Ahmed M. Eldosouky, Kamal Abdelrahman, David Gómez-Ortiz
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
In this paper, a geophysical strategy based on the recently proposed Manta-Ray Foraging (MRF) Optimization algorithm is adapted and presented for the blind computation of depth/shape defining parameters from magnetic anomalies due to buried geo-bodie
Externí odkaz:
https://doaj.org/article/c1a35121911c4e339d942312ceabc2ea
Autor:
Ubong C. Ben, Stephen E. Ekwok, Ogiji-Idaga M. Achadu, Anthony E. Akpan, Ahmed M. Eldosouky, Kamal Abdelrahman, David Gómez-Ortiz
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
The Manta-Ray Foraging Optimization has been adapted and implemented in computing model parameters from potential field anomalies originating from two-dimensional dipping faults. The inversion technique was originally demonstrated on magnetic anomali
Externí odkaz:
https://doaj.org/article/6300613f88594306929f148a54fb39c8
Autor:
Stephen E. Ekwok, Ahmed M. Eldosouky, Ubong C. Ben, Hassan Alzahrani, Kamal Abdelrahman, Ogiji-Idaga M. Achadu, Luan Thanh Pham, Anthony E. Akpan, David Gómez-Ortiz
Publikováno v:
Minerals, Vol 12, Iss 10, p 1227 (2022)
Aeromagnetic data from the Ogoja region, Southeast Nigeria, were enhanced using high-precision methods including the tilt angle of total horizontal gradient (TAHG), the softsign function (SF), and the improved logistic function (IL) with the aim of c
Externí odkaz:
https://doaj.org/article/48a93194cbbe4322b7097c6102f2fe40
Autor:
Minh Duc Vu, Viengthong Xayavong, Chung Anh Do, Luan Thanh Pham, David Gómez-Ortiz, Ahmed M. Eldosouky
Publikováno v:
Journal of Asian Earth Sciences: X, Vol 5, Iss , Pp 100056- (2021)
The purpose of this study is to evaluate the effectiveness of the multi-electrode electrical resistivity methods and to better understand the aquifers in Laos. The improved multi-electrode electrical exploration (IMEE) methods and a SuperSting R8/IP
Externí odkaz:
https://doaj.org/article/76b12f9c761d45599de9ac94e1ecffa1
Autor:
Stephen E. Ekwok, Ogiji-Idaga M. Achadu, Anthony E. Akpan, Ahmed M. Eldosouky, Chika Henrietta Ufuafuonye, Kamal Abdelrahman, David Gómez-Ortiz
Publikováno v:
Minerals, Vol 12, Iss 3, p 285 (2022)
This study involves the use of high-resolution airborne magnetic data to evaluate the thicknesses of sedimentary series in the Bornu Basin, Northeast Nigeria, using three depth approximation techniques (source parameter imaging, standard Euler deconv
Externí odkaz:
https://doaj.org/article/073122523fa34294a59139e6c9bd1395
Autor:
Ekpenyong E. Ekpe, Ubong C. Ben, Stephen E. Ekwok, Ebong D. Ebong, Anthony E. Akpan, Ahmed M. Eldosouky, Kamal Abdelrahman, David Gómez-Ortiz
Publikováno v:
Minerals, Vol 12, Iss 3, p 312 (2022)
A gamma spectrometric analysis of rock samples collected from the Precambrian Oban Massif, southeastern Nigeria, was performed to determine some primordial radioelements’ activity concentrations: U-238, Th-232, and K-40, and their associated radiol
Externí odkaz:
https://doaj.org/article/0149d3bd237d40d3843fd22fae217468
Autor:
Christopher John Allman, David Gómez-Ortiz, Andrea Burke, Ricardo Amils, Nuria Rodriguez, David Fernández-Remolar
Publikováno v:
Water, Vol 13, Iss 20, p 2861 (2021)
Peña de Hierro, located in southwest Spain, encompasses the springs and headwaters for the Rio Tinto River that emerge above normal faults and has been mined for its rich sulfide ore since 2500 BC. The springs are typically characterized by an orang
Externí odkaz:
https://doaj.org/article/72975a1a9f6d4d8cbf97b9d4634c67eb
Autor:
Cristina de Ignacio, Elena Real, Tomás Martín-Crespo, David Gómez-Ortiz, Silvia Martín-Velázquez, José Arnoso, Fuensanta Montesinos
La Palma is one of the youngest and the most active island of all the Canary archipelago, with a total of seven subaerial eruptions over the last 500 years. This magmatic activity is linked to the undergoing growth and development of the youngest vol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27c8a52052a42404c357bfbb6d4123ae
https://doi.org/10.5194/egusphere-egu23-16267
https://doi.org/10.5194/egusphere-egu23-16267