Results 71 to 80 of about 1,823,632 (294)

Smanjenje štetnosti ispušnih plinova dizelskog motora

open access: yesPromet (Zagreb), 2012
The paper deals with some possibilities of reduction of Diesel engine exhaust emission hazards. For purposes of purification of exhaust emissions, the in-built filters can be provided, like ceramic filters for sooth and water filters for gases.
Jasna Golubić, Nada Štrumberger
doaj   +1 more source

Optimization of digital filters performances simultaneously in frequency and time domains

open access: yesРоссийский технологический журнал, 2020
Wide used method of digital filters design consists in transformation of analog filter-prototype with required performances into digital filter. This method is applicable if the transformation preserves optimality of filter performances under specified ...
A. V. Smirnov
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Repeated median and hybrid filters [PDF]

open access: yes
Standard median filters preserve abrupt shifts (edges) and remove impulsive noise (outliers) from a constant signal but they deteriorate in trend periods.
Fried, Roland   +2 more
core  

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

Hybrid power filters for three-phase four-wire systems

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Using the differential method for calculating the heat and mass transfer, numerical studies of thermal and aerodynamic parameters in the firebox tube furnaces with acoustic gas burners flame grazing at different amounts tiered burners on the side wall of
M. O. Chernyshov   +2 more
doaj   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin   +12 more
wiley   +1 more source

New trends in active filters for improving power quality [PDF]

open access: yes, 1996
Since their basic compensation principles were proposed around 1970, active filters have been studied by many researchers and engineers aiming to put them into practical applications.
H. Akagi, Akagi, Hirofumi
core   +1 more source

Filters

open access: yes, 2021
Synthetic photometry. Filters for pyphot.
Sundar Srinivasan (4572358)
core   +1 more source

Fault Detection and Location System for Diagnosis of Multiple Faults in Aeroengines

open access: yesIEEE Access, 2017
This paper presents a fault detection and location (FDL) system for the situation of the coexistence of faults and health degradation in aeroengines.
Ye Yuan   +3 more
doaj   +1 more source

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