Results 11 to 20 of about 21,300,669 (261)
Design and simulation of high linearity CMOS analog multiplier
A high linearity CMOS analog multiplier is designed and simulated. The input signal is preprocessed by active attenuator and the CMOS Gilbert multiplier is used for multiplication of the signal, and the bias circuit is designed meanwhile. When the supply
Ding Kun +5 more
doaj +1 more source
In this article, we experimentally and quantitatively investigate the luminance attenuation for red, green, and blue mini light-emitting diodes (LEDs), and the optical crosstalk in the RGB mini-LED array under different working currents via the ...
Lili Zheng +10 more
doaj +1 more source
Earthquake building damage detection based on synthetic-aperture-radar imagery and machine learning [PDF]
This article presents a framework for semi-automated building damage assessment due to earthquakes from remote-sensing data and other supplementary datasets, while also leveraging recent advances in machine-learning algorithms.
A. Rao +6 more
doaj +1 more source
Visualizing surface formation of semi-regular polyhedra of Archimedes
The most common method of forming semi-control polyhedra consists in cutting off angles and ribs of regular polyhedra by planes. The aim of the work - to consider the automated formation of a number of surfaces of semi-regular Archimedean polyhedra based
Viktoryna A. Romanova
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Heart Rate Estimation from Incomplete Electrocardiography Signals
As one of the most remarkable indicators of physiological health, heart rate (HR) has become an unfailing investigation for researchers. Unlike many existing methods, this article proposes an approach to implement short-time HR estimation from ...
Yawei Song, Jia Chen, Rongxin Zhang
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Acoustic Characterization for The Feeding Activities of Haliotis discus Hannai
In order to analyze the sound production mechanism and the acoustic characteristics of Haliotis discus hannai during feeding, this paper proposes a multi-source information fusion approach combining passive acoustics with videos.
Hongyue Lin +6 more
doaj +1 more source
Polariton lasing in InGaN quantum wells at room temperature
In this paper, we report the exciton polaritons in both positive and negative detuning micro cavities based on InGaN multi-quantum wells (MQWs) and the first polariton lasing in InGaN/GaN MQWs at room temperature by utilizing a 4.5λ Fabry-Perot (F-P ...
Wu Jinzhao +8 more
doaj +1 more source
Robust and Efficient Harmonics Denoising in Large Dataset Based on Random SVD and Soft Thresholding
The Hankel matrix of harmonic signals has the important low-rank property, based on which the principal components (or the eigenvectors) extracted from the matrix by singular value decomposition (SVD) could be applied for harmonic signal denoising ...
Yu Yang, Jian Rao
doaj +1 more source
A model for hypermedia learning environments based on electronic books [PDF]
Designers of hypermedia learning environments could take advantage of a theoretical scheme which takes into account various kinds of learning activities and solves some of the problems associated with them.
Ignacio Aedo +5 more
core +1 more source
Vizualizing of semi-regular polyhedrons in AutoCAD environment
The paper examines the automated formation by the kinematic method of the surfaces of Archimedes' semi-regular polyhedra of three forms: truncated tetrahedron, truncated octahedron and truncated icosahedron.
Viktoryna A. Romanova
doaj +1 more source

