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More on the quantum harmonic oscillator via unilateral Fourier transform [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2022
The stationary states of the quantum harmonic oscillator are properly determined by means of the unilateral Fourier transform without having to recourse to the properties of the confluent hypergeometric functions. This simpler procedure is reminiscent of
Douglas Willian Vieira   +1 more
doaj   +4 more sources

A caveat about applications of the unilateral Fourier transform [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2020
It is presented a warning about the erroneous use of unilateral Fourier transform with nonhomogeneous Dirichlet or Neumann boundary conditions in a well-known textbook on integral transforms, and also in a few papers recently diffused in the literature.
Antonio S. de Castro
doaj   +6 more sources

Classification of sEMG Signals for Diagnosis of Unilateral Posterior Crossbite in Primary Dentition using Fast Fourier Transform and Logistic Regression [PDF]

open access: yesJournal of Artificial Intelligence and Data Mining, 2022
Posterior crossbite is a common malocclusion disorder in the primary dentition that strongly affects masticatory function. To the best of the author’s knowledge, for the first time, this article presents a reasonable and computationally efficient ...
H. Kalani, E. Abbasi
doaj   +2 more sources

Quantum states of a particle in a box via unilateral Fourier transform [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2020
The quantum problem of stationary states of a particle in a box is revisited by means of the unilateral Fourier transform. Homogeneous Dirichlet boundary conditions demand a finite Fourier sine transform which is actually the Fourier sine series.
Douglas W. Vieira, Antonio S. de Castro
doaj   +6 more sources

Solution for the simple harmonic oscillator problem via unilateral Fourier transform

open access: yesRevista Brasileira de Ensino de Física, 2023
The solution of the simple harmonic oscillator problem is properly determined by means of the unilateral Fourier transform.
Antonio S. de Castro
doaj   +3 more sources

Fourier Transform Infrared Spectroscopic Characterization of Aortic Wall Remodeling by Stable Gastric Pentadecapeptide BPC 157 After Unilateral Adrenalectomy in Rats [PDF]

open access: yesPharmaceuticals
Background: No Fourier transform infrared (FTIR) spectroscopy studies have directly evaluated adrenalectomy vessels, the technique’s established ability to probe collagen/elastin-associated spectral features and lipid peroxidation-related signatures, and
Ivan Maria Smoday   +21 more
doaj   +2 more sources

Motion under a time-dependent driving force plus a linear velocity-dependent friction: From the unilateral Fourier transform to the Green function [PDF]

open access: yesRevista Brasileira de Ensino de Física
The problem of a particle subject to a time-dependent driving force plus a linear velocity-dependent friction can be addressed by utilizing the unilateral Fourier transform, despite the presence of derivatives of odd and even order in the differential ...
Thomas A. Correa, Antonio S. de Castro
doaj   +2 more sources

Revisiting the quantum harmonic oscillator via unilateral Fourier transforms [PDF]

open access: yesEuropean Journal of Physics, 2015
11 ...
Nogueira, Pedro H. F.   +1 more
openaire   +3 more sources

Accelerations Recorded by Simple Inertial Measurement Units with Low Sampling Frequency Can Differentiate between Individuals with and without Knee Osteoarthritis: Implications for Remote Health Care

open access: yesSensors, 2023
Determining the presence and severity of knee osteoarthritis (OA) is a valuable application of inertial measurement units (IMUs) in the remote monitoring of patients.
Arash Ghaffari   +5 more
doaj   +1 more source

Petrogenesis of Chatoyant Green Nephrite from Serpentinite-Related Deposits, Ospinsk, Russia: Insights from Mineralogy and Geochemistry

open access: yesCrystals, 2023
Ospinsk is an area in Russia well-known for mining the highest quality green nephrite in the world. However, the chatoyant green nephrite found here has not been studied to date.
Weishi He   +4 more
doaj   +1 more source

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