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Characterization of gas-aerosol interaction kinetics using morphology dependent stimulated Raman scattering
This study is aimed at characterizing the influence of aerosol surface structure on the kinetics of gas-aerosol interactions. Changes in gas phase chemical reaction rates as a function of exposure to a specific aerosol are measured with aerosols having different surface properties due to the composition and/or temperature of the material making up the aerosol. The kinetic data generated can be used directly in atmospheric modeling calculations. The surface structure of the aerosol is using morphology-dependent enhancement of simulated Raman scattering (MDSRS). Detailed dynamics of gas-aerosol interactions can be obtained by correlating the change in the reaction rate with change in surface structure and by monitoring the change in aerosol surface structure during, the course of the reaction. This dynamics information can be used to generate kinetic data for systems which are similar in nature to those studied, but are not amenable to laboratory investigation. We show here that increased MDSRS sensitivity is achieved by using an excitation laser source that has a narrow linewidth and we have been able to detect sulfate anion concentrations much lower than previously reported. We have shown that the linewidth of the MDSRS mode excited in a droplet is limited by the laser linewidth. …
Date:
January 30, 1993
Creator:
Aker, P.M.
Object Type:
Report
System:
The UNT Digital Library
Characterization of gas-aerosol interaction kinetics using morphology dependent stimulated Raman scattering. 1992 Annual summary
This study is aimed at characterizing the influence of aerosol surface structure on the kinetics of gas-aerosol interactions. Changes in gas phase chemical reaction rates as a function of exposure to a specific aerosol are measured with aerosols having different surface properties due to the composition and/or temperature of the material making up the aerosol. The kinetic data generated can be used directly in atmospheric modeling calculations. The surface structure of the aerosol is using morphology-dependent enhancement of simulated Raman scattering (MDSRS). Detailed dynamics of gas-aerosol interactions can be obtained by correlating the change in the reaction rate with change in surface structure and by monitoring the change in aerosol surface structure during, the course of the reaction. This dynamics information can be used to generate kinetic data for systems which are similar in nature to those studied, but are not amenable to laboratory investigation. We show here that increased MDSRS sensitivity is achieved by using an excitation laser source that has a narrow linewidth and we have been able to detect sulfate anion concentrations much lower than previously reported. We have shown that the linewidth of the MDSRS mode excited in a droplet is limited by the laser linewidth. …
Date:
January 30, 1993
Creator:
Aker, P. M.
Object Type:
Report
System:
The UNT Digital Library
[Clipping: Rivals say Krueger waffling]
Newspaper clipping from The Dallas Morning News of an article about interim Senator Bob Krueger's stance on gays in the military.
Date:
January 30, 1993
Creator:
Attlesey, Sam
Object Type:
Clipping
System:
The UNT Digital Library
[Funeral Program for Manuel Applewhite, January 30, 1993]
Funeral program for Mr. Manuel Applewhite, born February 8, 1922 and died January 23, 1993. The funeral was held January 30, 1993 at Friendship Baptist Church, officiated by Rev. R. L. Archield, Sr. The funeral arrangements were made through Lewis Funeral Home and he was buried in Southern Memorial Park in San Antonio, Texas.
Date:
January 30, 1993
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
[Letter from John Thomas to William Waybourn]
Letter from John Thomas, with the AIDS Resource Center header, to William Waybourn. The letter is in regards to a donation Waybourn made to the programs of the AIDS Resource Center made in honor of T. Joseph Scoggins.
Date:
January 30, 1993
Creator:
Thomas, John
Object Type:
Text
System:
The UNT Digital Library
[News Clip: Building Collapse]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 30, 1993, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Cowboys]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 30, 1993
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Hotel Fire]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 30, 1993, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Kiss Tickets]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 30, 1993, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Local Fans]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 30, 1993, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Price Protest]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 30, 1993, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 83, No. 9, Ed. 1 Saturday, January 30, 1993
Semiweekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 30, 1993
Creator:
Smith, Jodi
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 99, No. 300, Ed. 1 Saturday, January 30, 1993
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 30, 1993
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0118.0419]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Joe Burton (center) is among several veteran players returning to the Blazers this season. The Blazers open exhibition play tonight with a game against Lada, the Russian national champions."
Date:
January 30, 1993
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0118.0422]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oklahoma City's Joe Burton works the puck as Wichita's Otis Plegman closes in during Saturday night's CHL action at State Fair Arena."
Date:
January 30, 1993
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0229.0457]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "By Merrell T. Grey Oklahoma City."
Date:
January 30, 1993
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0304B.0390]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Sondra Cole, Melinda Pierce, House Speaker Glen Johnson and Dr. Bill Cole, from left, exchange greetings."
Date:
January 30, 1993
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0304B.0407]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "State house Speaker Glen D. Johnson, D-Okemah, and Fiancée Melinda Pierce, left, chat with U.S. Rep. Bill Brewster, D-Marietta, and Brewster's wife, Susie, Saturday night during the annual Speaker's Ball at the Lincoln Plaza Hotel."
Date:
January 30, 1993
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0312B.0408]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Richard Howell, left, Diane Joy-Sizemore and Mike McAuliffe look over candid photos."
Date:
January 30, 1993
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0328.0080]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dick and Barbara Kerrick, left and Kay Goebel aren't ready to give up their party hats."
Date:
January 30, 1993
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0346.0038]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Add the return of Paul Krake, above, to the steady play of Alan Perry and the result for the Blazers is the CHL's best pair of goaltenders."
Date:
January 30, 1993
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1072.0388]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Kathy and Craig Davis spend a sunny day at the races on the opening day of the spring meet at Remington Park trying to pick a winner."
Date:
January 30, 1993
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1385.0498]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Kristine Disney, Beth Durbin and Sandy Wright, from left, visit at the Chairmen's "Tank You Party" for Opening Night."
Date:
January 30, 1993
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Production of mild gasification co-products project
Progress continues related to production of the coproduct samples for the four coals from three coal regions. Following our internal schedule for the processing of the four coals, specific mine selection, taking samples, processing of the feedstock to coproducts, packaging and potential shipment to designated laboratories has occurred and is on going as described in this report.
Date:
January 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library