Results 21 to 30 of about 1,834,878 (292)

Automatic high-bandwidth calibration and reconstruction of arbitrarily sampled parallel MRI. [PDF]

open access: yesPLoS ONE, 2014
Today, many MRI reconstruction techniques exist for undersampled MRI data. Regularization-based techniques inspired by compressed sensing allow for the reconstruction of undersampled data that would lead to an ill-posed reconstruction problem.
Jan Aelterman   +6 more
doaj   +1 more source

Approximate inference of the bandwidth in multivariate kernel density estimation [PDF]

open access: yes, 2011
Kernel density estimation is a popular and widely used non-parametric method for data-driven density estimation. Its appeal lies in its simplicity and ease of implementation, as well as its strong asymptotic results regarding its convergence to the true ...
Sanguinetti, G.   +3 more
core   +1 more source

Low-frequency sound insulation optimisation design of membrane-type acoustic metamaterials based on Kriging surrogate model

open access: yesMaterials & Design, 2023
Low frequency is a difficult problem in noise control. How to design new lightweight materials or structures to achieve low-frequency noise reduction is of utmost importance.
Wang Peng   +4 more
doaj   +1 more source

Bandwidth aspects in second generation current conveyors [PDF]

open access: yes, 2002
This paper discusses bandwidth problems associated with second-generation current conveyors (CCII). In particular, our work is centered in high-capacitance applications, and has been oriented for wireless optical links and applied physics.
Alves, L. N., Aguiar, R.L., Santos, D.M.
core   +1 more source

Bootstrapping techniques to improve the bandwidth of transimpedance amplifiers. [PDF]

open access: yes, 1998
Transimpedance amplifiers using voltage feedback operational amplifiers are widely used for current to voltage conversion in applications when a moderate/high bandwidth and a high sensitivity are required, such as photodiodes, photomultipliers, electron ...
Hoyle, C., Peyton, A. J.
core   +5 more sources

Aplikasi Metode Per Connection Queue Pada Optimasi Bandwidth Pada Jaringan Internet

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2021
Kualitas jaringan merupakan suatu faktor penentu kenyamanan pengguna dalam melakukan aktivitas jaringan komputer. Pada suatu jaringan komputer diperlukan suatu pengaturan bandwidth agar tidak terjadi monopoli penggunaan bandwidth.
Wahyu Adi Priyono   +1 more
doaj   +1 more source

Bandwidth Prediction based on Nu-Support Vector Regression and Parallel Hybrid Particle Swarm Optimization [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2010
This paper addresses the problem of generating multi-step-ahead bandwidth prediction. Variation of bandwidth is modeled as a Nu-Support Vector Regression (Nu-SVR) procedure. A parallel procedure is proposed to hybridize constant and binary Particle Swarm
Liang Hu, Xilong Che, Xiaochun Cheng
doaj   +1 more source

Desain Antena Hexagonal Patch Array Berbasis Sistem Transfer Daya Wireless pada Frekuensi 2,4 GHz

open access: yesJurnal Elektronika dan Telekomunikasi, 2016
Pada penelitian ini telah didesain antena hexagonal patch array yang dapat digunakan sebagai perangkat catu daya wireless. Antena hexagonal patch array ini didesain untuk menangkap gelombang radio (RF) pada frekuensi 2,4 GHz yang dapat diaplikasikan ...
Herma Nugroho R. A. K.   +2 more
doaj   +1 more source

Analisis Kinerja dan Karakterisasi Axially Asymmetric SRR sebagai Penyerap GEM C-Band

open access: yesJurnal Nasional Teknik Elektro dan Teknologi Informasi, 2020
Penyerap gelombang elektromagnetik (GEM) berbentuk planar mulai banyak diteliti dalam dekade terakhir. Dengan bentuknya yang tipis, fleksibel, dan mudah untuk difabrikasi membuat penyerap GEM berpotensi untuk digunakan pada teknologi baru di masa depan ...
Rasheed Abdurrahman Mulyadi   +3 more
doaj   +1 more source

Local Cross-validation for Spectrum Bandwidth Choice [PDF]

open access: yes, 2000
We investigate an automatic method of determining a local bandwidth for non-parametric kernel spectral density estimates at a single frequency. This procedure is a modification of a cross-validation technique for global bandwidth choices, avoiding the ...
Velasco, Carlos
core   +1 more source

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