Spatial and temporal characterization of traffic emissions in urban microenvironments with a mobile laboratory

2012 ◽  
Vol 63 ◽  
pp. 156-167 ◽  
Author(s):  
L. Pirjola ◽  
T. Lähde ◽  
J.V. Niemi ◽  
A. Kousa ◽  
T. Rönkkö ◽  
...  
Keyword(s):  
Traffic Emissions ◽  
Mobile Laboratory

Using the Aerodyne Mobile Laboratory to characterize industrial emissions in Southern California

2020 ◽  
Author(s):  
Conner Daube ◽  
Christoph Dyroff ◽  
Edward Fortner ◽  
Jordan Krechmer ◽  
Francesca Majluf ◽  
...  
Keyword(s):  
Los Angeles ◽  
Air Pollutants ◽  
Ambient Air ◽  
Emission Sources ◽  
Mobile Laboratory ◽  
Hazardous Air Pollutants ◽  
Industrial Emissions ◽  
Air Samples ◽  
Regional Trends

<p>During late 2019, the Aerodyne Mobile Laboratory sampled numerous industrial areas primarily in the County of Los Angeles, California, USA. Commercial and laboratory-grade instruments were used to analyze the gaseous and particulate composition of ambient air samples while operating in mobile and stationary modes. Measurements of CO<sub>2</sub>, CH<sub>4</sub>, and N<sub>2</sub>O were collected in addition to several specific hazardous air pollutants. Short-lived plumes from a wide variety of industries and broader regional trends were observed. Multi-day measurements at identified sources and overnight sampling added depth and context to these findings. Results from this characterization of industrial emission sources, including analysis of both greenhouse gases and pollutants in the urban environment, will be presented.</p>

Development and characterization of an exposure generation system to investigate the health effects of particles from fresh and aged traffic emissions

2012 ◽  
Vol 6 (2) ◽  
pp. 419-429 ◽  
Author(s):  
Vasileios Papapostolou ◽  
Joy E. Lawrence ◽  
Stephen T. Ferguson ◽  
Jack M. Wolfson ◽  
Edgar A. Diaz ◽  
...  
Keyword(s):  
Health Effects ◽  
Traffic Emissions ◽  
Generation System

Characterization of urban pollutant emission fluxes and ambient concentration distributions using a mobile laboratory with rapid response instrumentation

2005 ◽  
Vol 130 ◽  
pp. 327 ◽  
Author(s):  
Scott C. Herndon ◽  
John T. Jayne ◽  
Mark S. Zahniser ◽  
Douglas R. Worsnop ◽  
Berk Knighton ◽  
...  
Keyword(s):  
Rapid Response ◽  
Pollutant Emission ◽  
Mobile Laboratory ◽  
Ambient Concentration ◽  
Emission Fluxes

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

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