Symbolic Analysis for Boundary Problems: From Rewriting to Parametrized Groebner Bases [PDF]
We review our algebraic framework for linear boundary problems (concentrating on ordinary differential equations). Its starting point is an appropriate algebraization of the domain of functions, which we have named integro-differential algebras.
Buchberger, Bruno +3 more
core +1 more source
Regional ionospheric delay correction model for single frequency PPP users in Turkey [PDF]
Ionospheric delay is the major challenge for Single-Frequency Precise Point Positioning (SF-PPP) users. Therefore, a number of organizations have developed ionospheric delay correction products including the International GNSS Service Global Ionospheric ...
Mohamed ABDELAZEEM +2 more
doaj
An exploratory study of interpretability for face presentation attack detection
Biometric recognition and presentation attack detection (PAD) methods strongly rely on deep learning algorithms. Though often more accurate, these models operate as complex black boxes.
Ana F. Sequeira +4 more
doaj +1 more source
The GPS global detection of the ionospheric response to solar flares [PDF]
This author suggests the concept of a new technology for global detection (GLOBDET) of atmospheric disturbances of natural and technogenic origin, on the basis of phase measurements of the total electron content (TEC) in the ionosphere using an ...
Afraimovich, E. L.
core +3 more sources
Acercarnos a un respirador anestésico (o bien, a una estación de trabajo para los más finos) es acercarnos a una maquinaria relativamente reciente. Y a pesar de que los actuales modelos se presentan con diseños futuristas, mostrando variedad de pantallas
Alberto Gironés Muriel
doaj +1 more source
Modeling of GPS total electron content over the African low-latitude region using empirical orthogonal functions [PDF]
In this paper, an empirical total electron content (TEC) model and trends in the TEC over the African low-latitude region are presented. GPS-derived TEC data from Malindi, Kenya (geographic coordinates 40.194∘ E, 2.996∘ S), and global ...
G. Andima +4 more
doaj +1 more source
TEC Expresses Highly in Hepatocellular Carcinoma and Is Involved in Drug Resistance
Objective To investigate the expression level of TEC, a no-receptor tyrosine kinase, in hepatocellular carcinoma(HCC) tissues and its correlation with drug resistance.
LIU Wen +5 more
doaj +1 more source
Real-time detection of tsunami ionospheric disturbances with a stand-alone GNSS receiver. A preliminary feasibility demonstration [PDF]
It is well known that tsunamis can produce gravity waves that propagate up to the ionosphere generating disturbed electron densities in the E and F regions. These ionospheric disturbances can be studied in detail using ionospheric total electron content (
Crespi, Mattia +6 more
core +1 more source
Представлены результаты диагностики перемещающихся ионосферных возмущений (ПИВ) над Антарктическим полуостровом, которые были получены двумя разными методами.
A. A. Sopin +7 more
doaj +1 more source
MONITORING IONOSPHERIC VARIATION FOR A DEFINITE PERIOD TIME IN TURKEY [PDF]
Ionosphere has been studied by a number of scientists in recent years. Since GPS observations cannot provide TEC value directly, it can be estimated from combination of observations.
S. Inyurt, C. Mekik, O. Yildirim
doaj +1 more source

