Characterization of Exhaust Emissions from Passenger Cars Equipped with Three-Way Catalyst Control Systems

1980 ◽  
Author(s):  
Lawrence R. Smith ◽  
Frank M. Black
Keyword(s):  
Control Systems ◽  
Exhaust Emissions ◽  
Passenger Cars ◽  
Three Way Catalyst

On-Road Exhaust Emissions from Passenger Cars Fitted with a Start-Stop System

2011 ◽  
Vol 23 (1) ◽  
Author(s):  
Jerzy Merkisz ◽  
Ireneusz Pielecha ◽  
Jacek Pielecha ◽  
Kamil Brudnicki
Keyword(s):  
Exhaust Emissions ◽  
Passenger Cars

scholarly journals The Development of Strategies to Reduce Exhaust Emissions from Passenger Cars in Rzeszow City—Poland. A Preliminary Assessment of the Results Produced by the Increase of E-Fleet

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1046
Author(s):  
Maksymilian Mądziel ◽  
Tiziana Campisi ◽  
Artur Jaworski ◽  
Giovanni Tesoriere
Keyword(s):  
Particulate Matter ◽  
Electric Vehicles ◽  
Combustion Engine ◽  
Present Report ◽  
Exhaust Emissions ◽  
Motor Vehicles ◽  
Strategic Choices ◽  
Passenger Cars ◽  
Particulate Concentration ◽  
The Impact

Urban agglomerations close to road infrastructure are particularly exposed to harmful exhaust emissions from motor vehicles and this problem is exacerbated at road intersections. Roundabouts are one of the most popular intersection designs in recent years, making traffic flow smoother and safer, but especially at peak times they are subject to numerous stop-and-go operations by vehicles, which increase the dispersion of emissions with high particulate matter rates. The study focused on a specific area of the city of Rzeszow in Poland. This country is characterized by the current composition of vehicle fleets connected to combustion engine vehicles. The measurement of the concentration of particulate matter (PM2.5 and PM10) by means of a preliminary survey campaign in the vicinity of the intersection made it possible to assess the impact of vehicle traffic on the dispersion of pollutants in the air. The present report presents some strategies to be implemented in the examined area considering a comparison of current and project scenarios characterized both by a modification of the road geometry (through the introduction of a turbo roundabout) and the composition of the vehicular flow with the forthcoming diffusion of electric vehicles. The study presents an exemplified methodology for comparing scenarios aimed at optimizing strategic choices for the local administration and also shows the benefits of an increased electric fleet. By processing the data with specific tools and comparing the scenarios, it was found that a conversion of 25% of the motor vehicles to electric vehicles in the current fleet has reduced the concentration of PM10 by about 30% along the ring road, has led to a significant reduction in the length of particulate concentration of the motorway, and it has also led to a significant reduction in the length of the particulate concentration for the access roads to the intersection.

Regulated and unregulated exhaust emissions from two three-way catalyst equipped gasoline fuelled vehicles

1996 ◽  
Vol 30 (20) ◽  
pp. 3529-3536 ◽  
Author(s):  
Roger Westerholm ◽  
Anders Christensen ◽  
Åke Rosén
Keyword(s):  
Exhaust Emissions ◽  
Three Way Catalyst

scholarly journals HMM-based characterization of channel behavior for networked control systems

2012 ◽  
Author(s):  
Jian Chang ◽  
Krishna K. Venkatasubramanian ◽  
Chinwendu Enyioha ◽  
Shreyas Sundaram ◽  
George J. Pappas ◽  
...  
Keyword(s):  
Control Systems ◽  
Networked Control Systems ◽  
Networked Control

scholarly journals The extracellular contractile injection system is enriched in environmental microbes and associates with numerous toxins

2020 ◽  
Author(s):  
Alexander Martin Geller ◽  
Inbal Pollin ◽  
David Zlotkin ◽  
Aleks Danov ◽  
Nimrod Nachmias ◽  
...  
Keyword(s):  
Control Systems ◽  
Protein Delivery ◽  
Microbial Interactions ◽  
Host Cells ◽  
Injection System ◽  
Prokaryotic Genomes ◽  
Immunity Genes ◽  
Core Genes ◽  
Environmental Microbes

AbstractBacteria employ toxin delivery systems to exclude bacterial competitors and to infect host cells. Characterization of these systems and the toxins they secrete is important for understanding microbial interactions and virulence in different ecosystems. The extracellular Contractile Injection System (eCIS) is a toxin delivery particle that evolved from a bacteriophage tail. Four known eCIS systems have been shown to mediate interactions between bacteria and their invertebrate hosts, but the broad ecological function of these systems remains unknown. Here, we identify eCIS loci in 1,249 prokaryotic genomes and reveal a striking enrichment of these loci in environmental microbes and absence from mammalian pathogens. We uncovered 13 toxin genes that associate with eCIS from diverse microbes and show that they can inhibit growth of bacteria, yeast or both. We also found immunity genes that protect bacteria from self-intoxication, supporting an antibacterial role for eCIS. Furthermore, we identified multiple new eCIS core genes including a conserved eCIS transcriptional regulator. Finally, we present our data through eCIStem; an extensive eCIS repository. Our findings define eCIS as a widespread environmental prokaryotic toxin delivery system that likely mediates antagonistic interactions with eukaryotes and prokaryotes. Future understanding of eCIS functions can be leveraged for the development of new biological control systems, antimicrobials, and cell-free protein delivery tools.

Characterization of indoor diesel exhaust emissions from the parking garage of a school

2016 ◽  
Vol 24 (5) ◽  
pp. 4655-4665 ◽  
Author(s):  
Maximilien Debia ◽  
Marie-Claude Trachy-Bourget ◽  
Charles Beaudry ◽  
Eve Neesham-Grenon ◽  
Stéphane Perron ◽  
...  
Keyword(s):  
Diesel Exhaust ◽  
Exhaust Emissions ◽  
Parking Garage

Characterization of Complex Patterns

2011 ◽  
pp. 180-213
Author(s):  
Yannick Caulier
Keyword(s):  
Quality Control ◽  
Control Systems ◽  
Complex Patterns ◽  
Machine Olfaction

Hence, the same approach can be applied for the characterization of colorimetric patterns in case of particular machine olfaction tasks, as the proposed developments can be further used integrated into other quality control systems, in order to bring more “intelligence” to this technique.

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