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Results:
1 - 24 of
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ARM tropical pacific experiment (ATPEX): Role of cloud, water vapor and convection feedbacks in the coupled ocean/atmosphere system
We have initiated studies that include radiation model validation, improved treatment of the three-dimensional structure of cloud-radiation interactions, and sensitivity runs that will unravel the role of cloud-convection-radiation interactions in the Pacific Sear Surface Temperatures and the overlying Walker and Hadley circulation. The research program is divided into three phases: (1) radiation, (2) cloud parameterization issues; (3) feedback and ocean-atmosphere interactions.
Date:
March 5, 1992
Creator:
Ramanathan, V. & Barnett, T.P.
Object Type:
Report
System:
The UNT Digital Library
Readily implemented enhanced sinusoid detection in noise
Significant efforts have been devoted, spanning many years, to the problem of sinusoid detection in noise. Many of these efforts have produced superb, yet complex, algorithms which may be difficult to use for a wide segment of the Digital Signal Processing (DSP) community. This paper presents a simple, easily implemented and high effective method which solves this problem. This method severely degrades non-sinusoidal noise while leaving the embedded sinusoid(s) relatively undisturbed. The algorithm, simply put, exploits the difference between the net effect of integration and differentiation of sinusoids versus the effect of these operations on random noise and other signal sequences. The cross-correlation of sine wave with its differentiated (and/or integrated) self is quite high. Conversely, the cross-reduction of a noise sequence with its differentiated (and/or integrated) self is much lower. Therefore, it is reasonable to assume that for sequences consisting of a sinusoid in noise, significant signal-to-noise-ratios (SNRs) in the correlation results are achievable using a combination of differentiation (and/or integration) and cross-correlation operations on such sequences. This technique has been applied to actual Doppler radar data, as well as to synthesized data, with excellent improvement in signal detection capability. 4 refs.
Date:
March 5, 1992
Creator:
Lindsay, K.V.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0114.0197]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Presidential candidate Patrick Buchanan makes a point Thursday during an address at the University of Oklahoma."
Date:
March 5, 1992
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0315B.0382]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Liz Eichmann, Genie Johnston, Bill Johnstone and Jackie Jones, from left, are all smiles at the Stage Center opening."
Date:
March 5, 1992
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0316B.0364]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Staff writer Stacy D. Johnson places a "I'm a Winner" badge on Treveno Carter, 6."
Date:
March 5, 1992
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0329.0122]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Webster Middle School students Barbara Bishop, left, and Stephanie Brown, in photo at right, act as human playing pieces for a demonstration of Kids TIVY math skills game. Students played a life-size version of the game in the school's gymnasium before an audience that included former U.S. Secretary of Education Terrel Bell and his chief of staff, Elam Hertzler."
Date:
March 5, 1992
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0114.0168]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
March 5, 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0114.0172]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Republican presidential candidate Patrick Buchanan explains his campaign policies to the Oklahoma legislature Thursday."
Date:
March 5, 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0114.0205]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
March 5, 1992
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0114.0202]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
March 5, 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0114.0203]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
March 5, 1992
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0114.0204]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
March 5, 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
The Tulia Herald (Tulia, Tex.), Vol. 84, No. 10, Ed. 1 Thursday, March 5, 1992
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
March 5, 1992
Creator:
Reynolds, Jim
Object Type:
Newspaper
System:
The Portal to Texas History
Cherokeean/Herald (Rusk, Tex.), Vol. 144, No. 5, Ed. 1 Thursday, March 5, 1992
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
March 5, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Application of non-radiometric methods to the determination of plutonium. Literature review conducted for the Buried Waste Integrated Program
This literature review was motivated by discussions that took place during a review of contamination control technologies proposed for INEL (buried waste). It should be a useful tool in identifying non-radiation measurement techniques for Pu and Am such as ICP-MS, which should fulfill the following criteria: apparatus must be field deployable; up to 100 samples per day; and lower levels of detection and required time must be listed. The sensitivity of ICP and RIMS is compared against that needed for contamination monitoring at INEL. Only Pu-241, with a required detection limit of 400 ppt, would challenge the sensitivity of ICP-MS; Pu-238 would be easily determined. The need to determine Pu-238 and Am-241 in the presence of U-238 and Pu-241 seems to preclude the possibility of using laser ablation ICP-MS for Pu monitoring. ICP-AES and -LEAFS methods may not have enough sensitivity to determine Pu-238 at 2 ppb level with confidence, but RIMS (resonance ionization mass spectroscopy) should be adequate. 47 refs, figs.
Date:
March 5, 1992
Creator:
Edelson, M. C.
Object Type:
Report
System:
The UNT Digital Library
ARM tropical pacific experiment (ATPEX): Role of cloud, water vapor and convection feedbacks in the coupled ocean/atmosphere system. Progress report, September 1, 1991--August 31, 1992
We have initiated studies that include radiation model validation, improved treatment of the three-dimensional structure of cloud-radiation interactions, and sensitivity runs that will unravel the role of cloud-convection-radiation interactions in the Pacific Sear Surface Temperatures and the overlying Walker and Hadley circulation. The research program is divided into three phases: (1) radiation, (2) cloud parameterization issues; (3) feedback and ocean-atmosphere interactions.
Date:
March 5, 1992
Creator:
Ramanathan, V. & Barnett, T. P.
Object Type:
Report
System:
The UNT Digital Library
Readily implemented enhanced sinusoid detection in noise
Significant efforts have been devoted, spanning many years, to the problem of sinusoid detection in noise. Many of these efforts have produced superb, yet complex, algorithms which may be difficult to use for a wide segment of the Digital Signal Processing (DSP) community. This paper presents a simple, easily implemented and high effective method which solves this problem. This method severely degrades non-sinusoidal noise while leaving the embedded sinusoid(s) relatively undisturbed. The algorithm, simply put, exploits the difference between the net effect of integration and differentiation of sinusoids versus the effect of these operations on random noise and other signal sequences. The cross-correlation of sine wave with its differentiated (and/or integrated) self is quite high. Conversely, the cross-reduction of a noise sequence with its differentiated (and/or integrated) self is much lower. Therefore, it is reasonable to assume that for sequences consisting of a sinusoid in noise, significant signal-to-noise-ratios (SNRs) in the correlation results are achievable using a combination of differentiation (and/or integration) and cross-correlation operations on such sequences. This technique has been applied to actual Doppler radar data, as well as to synthesized data, with excellent improvement in signal detection capability. 4 refs.
Date:
March 5, 1992
Creator:
Lindsay, K. V.
Object Type:
Report
System:
The UNT Digital Library
San Antonio Register (San Antonio, Tex.), Vol. 60, No. 44, Ed. 1 Thursday, March 5, 1992
Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1992
Creator:
Glosson, Edwin
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 116, No. 39, Ed. 1 Thursday, March 5, 1992
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
March 5, 1992
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
[Press release: Activists mark first anniversary of Cracker Barrel with protests, petitions]
Press release covering increased protests directed toward Cracker Barrel at the one-year anniversary of the adoption of their anti-gay employment policy.
Date:
March 5, 1992
Creator:
National Gay and Lesbian Task Force (U.S.)
Object Type:
Text
System:
The UNT Digital Library
Polk County Enterprise (Livingston, Tex.), Vol. 110, No. 19, Ed. 1 Thursday, March 5, 1992
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
March 5, 1992
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
The Olney Enterprise (Olney, Tex.), Vol. 83, No. 10, Ed. 1 Thursday, March 5, 1992
Weekly newspaper from Olney, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1992
Creator:
Penn, David H.
Object Type:
Newspaper
System:
The Portal to Texas History
The Teague Chronicle (Teague, Tex.), Vol. 85, No. 40, Ed. 1 Thursday, March 5, 1992
Weekly newspaper from Teague, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1992
Creator:
Massey, Steve
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 102, No. 36, Ed. 1 Thursday, March 5, 1992
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1992
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History