Results 71 to 80 of about 633 (131)

A transformada de Fourier e a probabilidade de ruína

open access: yes, 1999
The Laplace transform and its properties has became a key instrument for the inference of an important set of results in rum n theory. Taking this into account and the existence of a simple and general formula to invert the Fourier transform, that presents a set of interesting properties, it's possible to obtain, numerically, some important results of ...
openaire   +1 more source

Transformada fraccional de Fourier aplicado a sistemas ópticos coherentes

open access: yesRevista Técnica de la Facultad de Ingeniería, 2010
En 1980 Namias presentó la Transformada de Fourier de orden fraccional como una generalización de la bien conocida Transformada de Fourier, estableciendo el carácter matemático de la misma junto con un conjunto de teoremas y propiedades. Inicialmente la utilizó para resolver problemas con el oscilador armónico mecánico cuántico.
Jiménez Ruiz, Carlos   +2 more
openaire   +2 more sources

Análisis del electroencefalograma con transformada de Fourier y modelos paramétricos

open access: yesIngeniería e Investigación, 1991
El análisis tradicional del electroencefalograma (EEG) se realiza en el tiempo. Para ello se selecciona una sección del registro donde la contaminación es baja y posteriormente se cuenta el número de picos.
J. Alberto Delgado R.
doaj  

Is the algorithm used to process heart rate variability data clinically relevant? Analysis in male adolescents. [PDF]

open access: yesEinstein (Sao Paulo), 2016
Soares AH   +7 more
europepmc   +1 more source

Synthesis and anthelmintic activity of aminochalcones against multiresistant Haemonchus contortus. [PDF]

open access: yesRev Bras Parasitol Vet
Barbosa MLF   +12 more
europepmc   +1 more source

Does the pH of the grape seed extract interfere in the biomodification capacity of dentin collagen? [PDF]

open access: yesBraz Dent J
Lemos MVS   +4 more
europepmc   +1 more source

Analysis of electroencephalography brain rhythms in the reading process. [PDF]

open access: yesEinstein (Sao Paulo), 2020
Ramos CD   +5 more
europepmc   +1 more source

Auditory processing from the perspective of auditory electrophysiological assessment. [PDF]

open access: yesCodas
Menezes PL   +6 more
europepmc   +1 more source

I - Evaluation of Cardiovascular Autonomic Function in Healthy Individuals. [PDF]

open access: yesArq Bras Cardiol
Maciel BC   +3 more
europepmc   +1 more source

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