Results 91 to 100 of about 740,418 (299)

Electrochemical carbon nanotube filters for water and wastewater treatment

open access: yesNanotechnology Reviews, 2016
Electrochemically active carbon nanotube (CNT) filters have been developed as a highly efficient technology for water and wastewater treatment during the last few years. CNT filters have been widely used to adsorb chemical and biological contaminants due
Jame Sadia A., Zhou Zhi
doaj   +1 more source

Repetitive-Based Control for Selective Active Filters Using Discrete Cosine Transform

open access: yesEletrônica de Potência, 2004
This paper proposes selective harmonic current compensation using a closed-loop repetitive controller. The controller is based on measuring the line currents. It performs the compensation of specific harmonics selected by a DCT (Discrete Cosine Transform)
Fernando P. Marafão   +3 more
doaj   +1 more source

Transconductor and integrator circuits for integrated bipolar video frequency filters [PDF]

open access: yes, 1989
A description is presented of novel transconductor and integrator circuits which can be used in integrated video frequency filters in bipolar technology.
Heij, W.J.A. de   +2 more
core   +2 more sources

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

A Novel Discrete Resonant Control Method for Cascaded H-Bridge Rail Balancers

open access: yesPower Electronics and Drives
This paper presents the concept of an advanced rail balancer (ARB) for next-generation traction substations (TSSs), along with its control algorithm based on a novel advanced resonant controller.
Straka Milos   +5 more
doaj   +1 more source

A Current Mode Design of Fractional Order Universal Filter

open access: yesAdvances in Electrical and Computer Engineering, 2019
In this paper, low-voltage active elements based a general filter topology, which provides fractional order low-pass, high-pass, band-pass and band-reject filter responses at the same circuit, is introduced.
SACU, I. E., ALCI, M.
doaj   +1 more source

Suppression factor as evaluation criterion for wide-frequency filtering equipment

open access: yesThe Journal of Engineering, 2019
Here, a novel harmonic suppression performance criterion, namely suppression factor (SF), is suggested for the wide-frequency power filtering equipment.
Emre Durna, Muammer Ermiş
doaj   +1 more source

Rapid uropathogen identification using surface enhanced Raman spectroscopy active filters. [PDF]

open access: yesSci Rep, 2021
Dryden SD   +5 more
europepmc   +1 more source

Improving air filter efficiency as a strategy to reduce children’s exposure to traffic related air pollutants in energy-efficient classrooms [PDF]

open access: yes, 2016
This study was organised to quantify the effect of upgrading the filter efficiency in balance ventilation systems on indoor exposure to traffic-related air pollution, in 4 primary school classrooms.
Constandt, Kim   +7 more
core  

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