Results 181 to 190 of about 129,078 (307)

Portable Breathing Monitoring With Phase‐Resolved Airflow Dynamics Enabled by a Dual‐Response Flexible PZT Sensor

Advanced Healthcare Materials, EarlyView.
A portable respiratory monitoring device based on a flexible PZT sensor captures pressure‐ and temperature‐related airflow responses in a single waveform. Polarity‐opposed piezoelectric and pyroelectric components generate a narrow transient spike and a broad quasi‐steady peak during both inhalation and exhalation. This dual‐component structure enables
Minyu Li, Jun Aoyama, Yuchao Wu, Tomomi Uchiyama, Kosho Yoshikawa, Toshiki Mano, Yuxi Song, Hedong Zhang   +7 more
wiley   +1 more source

A simplified approach to failure analysis of ball bearings combining Principal Component Analysis and Fast Fourier Transform. [PDF]

PLoS One
Ndongue Esseme E, Kanaa TF, Ngo Bissé TJ, Pesdjock MJP, Ngongang L, Tonye E.   +5 more
europepmc   +1 more source

Nonequispaced Fast Fourier Transform

, 2017
Two algorithms for fast and accurate evaluation of high degree trigonometric polynomials at many scattered points are presented. Both methods rely on highly localized kernels and the Fast Fourier Transform. The first algorithm uses the function values at
Hughey, David
core  

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

Advanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno, Anjana Devi, David Zanders, Miryam Arredondo, Davide Mariotti, Ruairi McGlynn, Sindy Devis, Simón Guerrero, Eglantina Benavente, Matias Alegría, Yusser Olguin, Lorena Lobos‐Gonzalez, Kevin Guzmán, Elizabeth Rivas‐Yañez, Paula Solar, Valentin Cepus, Michael Krause, Luis Velásquez   +17 more
wiley   +1 more source

Thailand Ranat Xylophone: Analysis of the Musical Scale System

BioResources
The ranat ek belongs to the percussion family. It consists of wooden bars suspended by cords above a boat-shaped trough resonator and is played with two mallets.
Ahmad Faudzi Musib, Sinin Hamdan, Khairul Anwar Mohamad Said, Aaliyawani Ezzerin Sinin   +3 more
doaj  

Radar-Based Road Surface Classification Using Range-Fast Fourier Transform Learning Models. [PDF]

Sensors (Basel)
Lee H, Kim J, Ko K, Han H, Youm M.
europepmc   +1 more source

Statistical Fourier Analysis: Clarifications and Interpretations [PDF]

This paper expounds some of the results of Fourier theory that are essential to the statistical analysis of time series. It employs the algebra of circulant matrices to expose the structure of the discrete Fourier transform and to elucidate the filtering
D.S.G. Pollock
core  

Immunoinflammatory Mechanisms and Biocompatibility of Bioactive Dental Biomaterials: From Fundamental Insights to Clinical Translation

Advanced Healthcare Materials, EarlyView.
Surface‐host dialogue at the implant interface governs biological fate and osseointegration. Surface physicochemical properties of titanium (Ti) dental implants, including microgrooves, nanopatterns, nanotopography, roughness, and wettability, modulate the initial adsorption of proteins and the formation of a dynamic biointerface.
Daniela Moreira Cunha, Amanda Paino Santana, Marta Maria Alves Pereira, Mariana Martins Guerreiro, Jose Mauro Granjeiro, Jamil Awad Shibli, Jeroen J. J. P. van den Beucken, Anton Sculean, Rafael Scaf de Molon, Erica Dorigatti de Avila   +9 more
wiley   +1 more source

DMFFT: improving the generation quality of diffusion models using fast Fourier transform. [PDF]

Sci Rep
Yu C, Han C, Zhang C.
europepmc   +1 more source

Control system analysis via fast Fourier transform

, 1969
The Fast Fourier Transform has demonstrated its power in the fields of communication, optics etc. It has never been applied to control system analysis.
Chiu, Ran-Fun
core