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Infrared thermographic study of laser ignition
Pyrotechnic ignition has been studied in the past by making a limited number of discrete temperature-time observations during ignition. Present-day infrared scanning techniques make it possible to record thermal profiles, during ignition, with high spacial and temporal resolution. Data thus obtained can be used with existing theory to characterize pyrotechnic materials and to develop more precise kinetic models of the ignition process. Ignition has been studied theoretically and experimentally using various thermal methods. It has been shown that the whole process can, ideally, be divided into two stages. In the first stage, the sample pellet behaves like an inert body heated by an external heat source. The second stage is governed by the chemical reaction in the heated volume produced during the first stage. High speed thermographic recording of the temperature distribution in the test sample during laser ignition makes it possible to calculate the heat content at any instant. Thus, one can actually observe laser heating and the onset of self-sustained combustion in the pellet.
Date:
July 21, 1986
Creator:
Mohler, J.H. & Chow, C.T.S.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0396.0216]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Charlotte Mann, Pam Dimski, Julie Reed, Cheri Weintraub and Margenia Wicker, from left talk about Junior Service League activities."
Date:
July 21, 1986
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
TACB Bulletin, Number 3, July 21, 1986
Newsletter of the Texas Air Control Board including information about the Board as well as news, events, and other relevant information related to air quality in Texas.
Date:
July 21, 1986
Creator:
Texas Air Control Board
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Jacksboro Gazette-News (Jacksboro, Tex.), Vol. 106, No. 11, Ed. 1 Monday, July 21, 1986
Weekly newspaper from Jacksboro, Texas that includes local, state, and national news along with extensive advertising.
Date:
July 21, 1986
Creator:
McGee, Leigh
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 64, No. 224, Ed. 1 Monday, July 21, 1986
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
July 21, 1986
Creator:
Brown, Leon
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: Amber Refine]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Inspiration]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Stephen King]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Delta suit]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Garbage Rates]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: New Product]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Water crisis]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Fatal Wreck DFW]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: VitaMan]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Garbage Preview]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[Photograph 2012.201.B1028.0168]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
July 21, 1986
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1258.0831]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "City officials and residents of Capitol Hill get Ready to break ground for the area's central business district revitalization project."
Date:
July 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 15, No. 35, Ed. 1 Monday, July 21, 1986
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 21, 1986
Creator:
Sledge, Carla
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[News Clip: California quake]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Jail money]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Inspiration]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 21, 1986, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[Historic Property, Photograph 356-04]
Photograph of a historic property located at 800 E 30th in Bryan, Texas.
Date:
July 21, 1986
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[News Clip: Water crisis]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10 P.M.
Date:
July 21, 1986
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Chickasha Daily Express (Chickasha, Okla.), Vol. 95, No. 173, Ed. 1 Monday, July 21, 1986
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 21, 1986
Creator:
Quinn, Jerry
Object Type:
Newspaper
System:
The Gateway to Oklahoma History