In Situ Mixed Region Vapor Stripping in Low-Permeability Media. 1. Process Features and Laboratory Experiments

1995 ◽  
Vol 29 (9) ◽  
pp. 2191-2197 ◽  
Author(s):  
Olivia R. West ◽  
Robert L. Siegrist ◽  
John S. Gierke ◽  
Steven W. Schmunk ◽  
Andrew J. Lucero ◽  
...  
Keyword(s):  
Laboratory Experiments ◽  
Low Permeability ◽  
Vapor Stripping

In Situ Mixed Region Vapor Stripping in Low-Permeability Media. 2. Full-Scale Field Experiments

1995 ◽  
Vol 29 (9) ◽  
pp. 2198-2207 ◽  
Author(s):  
Robert L. Siegrist ◽  
Olivia R. West ◽  
Michael I. Morris ◽  
Doug A. Pickering ◽  
Dennis W. Greene ◽  
...  
Keyword(s):  
Field Experiments ◽  
Full Scale ◽  
Low Permeability ◽  
Scale Field ◽  
Vapor Stripping

In Situ Mixed Region Vapor Stripping in Low-Permeability Media. 3. Modeling of Field Tests

1995 ◽  
Vol 29 (9) ◽  
pp. 2208-2216 ◽  
Author(s):  
John S. Gierke ◽  
Congli. Wang ◽  
Olivia R. West ◽  
Robert L. Siegrist
Keyword(s):  
Field Tests ◽  
Low Permeability ◽  
Vapor Stripping

scholarly journals Listener-Position and Orientation Dependency of Auditory Perception in an Enclosed Space: Elicitation of Salient Attributes

2021 ◽  
Vol 11 (4) ◽  
pp. 1570
Author(s):  
Bogdan Ioan Băcilă ◽  
Hyunkook Lee
Keyword(s):  
Auditory Perception ◽  
Laboratory Experiments ◽  
Head Orientation ◽  
Repertory Grid Technique ◽  
Apparent Source ◽  
Grid Technique ◽  
Subjective Study ◽  
Enclosed Space ◽  
Orientation Dependency

This paper presents a subjective study conducted on the perception of auditory attributes depending on listener position and head orientation in an enclosed space. Two elicitation experiments were carried out using the repertory grid technique—in-situ and laboratory experiments—which aimed to identify perceptual attributes among 10 different combinations of the listener’s positions and head orientations in a concert hall. It was found that, between the in-situ and laboratory experiments, the listening positions and head orientations were clustered identically. Ten salient perceptual attributes were identified from the data obtained from the laboratory experiment. Whilst these included conventional attributes such as ASW (apparent source width) and LEV (listener envelopment), new attributes such as PRL (perceived reverb loudness), ARW (apparent reverb width) and Reverb Direction were identified, and they are hypothesised to be sub-attributes of LEV (listener envelopment). Timbral characteristics such as Reverb Brightness and Echo Brightness were also identified as salient attributes, which are considered to potentially contribute to the overall perceived clarity.

scholarly journals Natural dimethyl sulfide gradients would lead marine predators to higher prey biomass

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Kylie Owen ◽  
Kentaro Saeki ◽  
Joseph D. Warren ◽  
Alessandro Bocconcelli ◽  
David N. Wiley ◽  
...  
Keyword(s):  
Laboratory Experiments ◽  
Dimethyl Sulfide ◽  
Zooplankton Biomass ◽  
Foraging Success ◽  
Spatially Correlated ◽  
Prey Biomass ◽  
Marine Predators ◽  
Predator Foraging ◽  
The Impact

AbstractFinding prey is essential to survival, with marine predators hypothesised to track chemicals such as dimethyl sulfide (DMS) while foraging. Many predators are attracted to artificially released DMS, and laboratory experiments have shown that zooplankton grazing on phytoplankton accelerates DMS release. However, whether natural DMS concentrations are useful for predators and correlated to areas of high prey biomass remains a fundamental knowledge gap. Here, we used concurrent hydroacoustic surveys and in situ DMS measurements to present evidence that zooplankton biomass is spatially correlated to natural DMS concentration in air and seawater. Using agent simulations, we also show that following gradients of DMS would lead zooplankton predators to areas of higher prey biomass than swimming randomly. Further understanding of the conditions and scales over which these gradients occur, and how they are used by predators, is essential to predicting the impact of future changes in the ocean on predator foraging success.

Mathematical Modeling of In Situ Vapor Stripping of Contaminated Soils

1990 ◽  
Vol 30 (3) ◽  
pp. 281-293
Author(s):  
David J. Wilson ◽  
Ann N. Clarke ◽  
Robert D. Mutch
Keyword(s):  
Mathematical Modeling ◽  
Contaminated Soils ◽  
Vapor Stripping

In-Situ Stresses in Low-Permeability, Nonmarine Rocks

1989 ◽  
Vol 41 (04) ◽  
pp. 405-414 ◽  
Author(s):  
N.R. Warpinski ◽  
L.W. Teufel
Keyword(s):  
Low Permeability ◽  
In Situ Stresses

The concept of in-situ vapor stripping for removing VOCs from groundwater

1992 ◽  
Vol 8 (1) ◽  
pp. 71-92 ◽  
Author(s):  
Haim Gvirtzman ◽  
Steven M. Gorelick
Keyword(s):  
Vapor Stripping
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