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11,478 Matching Results

Start Over Access Open Access Month December Day 14th

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Results: 1 - 24 of 11,478 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
Observation of Supernova Remnant IC 443 with the Fermi Large Area Telescope (open access)

Observation of Supernova Remnant IC 443 with the Fermi Large Area Telescope

None
Date: December 14, 2012
Creator: Abdo, A. A.
Object Type: Report
System: The UNT Digital Library
Corrosion testing of stainless steel-zirconium metal waste form. (open access)

Corrosion testing of stainless steel-zirconium metal waste form.

Stainless steel-zirconium (SS-Zr) alloys are being considered as waste forms for the disposition of metallic waste generated during the electrometallurgical treatment of spent nuclear fuel. The waste forms contain irradiated cladding hulls, components of the alloy fuel, noble metal fission products, and actinide elements. The baseline waste form is a stainless steel-15 wt% zirconium (SS-15Zr) alloy. This article presents microstructure and some of the corrosion studies being conducted on the waste form alloys. Electrochemical corrosion, immersion corrosion, and vapor hydration tests have been performed on various alloy compositions to evaluate corrosion behavior and resistance to selective leaching of simulated fission products. The SS-Zr waste forms are successful at the immobilization and retention of fission products and show potential for acceptance as high-level nuclear waste forms.
Date: December 14, 1998
Creator: Abraham, D. P.
Object Type: Article
System: The UNT Digital Library
Electrochemical corrosion testing of metal waste forms (open access)

Electrochemical corrosion testing of metal waste forms

Electrochemical corrosion tests have been conducted on simulated stainless steel-zirconium (SS-Zr) metal waste form (MWF) samples. The uniform aqueous corrosion behavior of the samples in various test solutions was measured by the polarization resistance technique. The data show that the MWF corrosion rates are very low in groundwaters representative of the proposed Yucca Mountain repository. Galvanic corrosion measurements were also conducted on MWF samples that were coupled to an alloy that has been proposed for the inner lining of the high-level nuclear waste container. The experiments show that the steady-state galvanic corrosion currents are small. Galvanic corrosion will, hence, not be an important mechanism of radionuclide release from the MWF alloys.
Date: December 14, 1999
Creator: Abraham, D. P.; Peterson, J. J.; Katyal, H. K.; Keiser, D. D. & Hilton, B. A.
Object Type: Article
System: The UNT Digital Library
Model Etch Profiles for Ion Energy Distribution Functions in an Inductively Coupled Plasma Reactor (open access)

Model Etch Profiles for Ion Energy Distribution Functions in an Inductively Coupled Plasma Reactor

Rectangular trench profiles are modeled with analytic etch rates determined from measured ion distribution functions. The pattern transfer step for this plasma etch is for trilayer lithography. Argon and chlorine angular ion energy distribution functions measured by a spherical collector ring analyzer are fit to a sum of drifting Maxwellian velocity distribution functions with anisotropic temperatures. The fit of the model ion distribution functions by a simulated annealing optimization procedure converges adequately for only two drifting Maxwellians. The etch rates are proportional to analytic expressions for the ion energy flux. Numerical computation of the etch profiles by integration of the characteristic equations for profile points and connection of the profiles points is efficient.
Date: December 14, 1998
Creator: Abraham-Shrauner, B.; Chen, W. & Woodworth, J.R.
Object Type: Article
System: The UNT Digital Library
Supreme Court: Church-State Cases, October 1983 Term (open access)

Supreme Court: Church-State Cases, October 1983 Term

This report provides an assessment of Supreme Court cases from the 1983-85 Term that involve issues involving the free exercise of religion. It provides a detailed review of the case Lynch v. Donnelly, and brief descriptions of twelve other cases that have not been reviewed.
Date: December 14, 1983
Creator: Ackerman, David M.
Object Type: Report
System: The UNT Digital Library
Assessing Terrorist Motivations for Attacking Critical "Chemical" Infrastructure (open access)

Assessing Terrorist Motivations for Attacking Critical "Chemical" Infrastructure

Certain types of infrastructure--critical infrastructure (CI)--play vital roles in underpinning our economy, security, and way of life. One particular type of CI--that relating to chemicals--constitutes both an important element of our nation's infrastructure and a particularly attractive set of potential targets. This is primarily because of the large quantities of toxic industrial chemicals (TICs) it employs in various operations and because of the essential economic functions it serves. This study attempts to minimize some of the ambiguities that presently impede chemical infrastructure threat assessments by providing new insight into the key motivational factors that affect terrorist organizations propensity to attack chemical facilities. Prepared as a companion piece to the Center for Nonproliferation Studies August 2004 study--''Assessing Terrorist Motivations for Attacking Critical Infrastructure''--it investigates three overarching research questions: (1) why do terrorists choose to attack chemical-related infrastructure over other targets; (2) what specific factors influence their target selection decisions concerning chemical facilities; and (3) which, if any, types of groups are most inclined to attack chemical infrastructure targets? The study involved a multi-pronged research design, which made use of four discrete investigative techniques to answer the above questions as comprehensively as possible. These include: (1) a review of terrorism and threat …
Date: December 14, 2004
Creator: Ackerman, G.; Bale, J. & Moran, K.
Object Type: Report
System: The UNT Digital Library
Constraints on Dark Matter Annihilation in Clusters of Galaxies with the Fermi Large Area Telescope (open access)

Constraints on Dark Matter Annihilation in Clusters of Galaxies with the Fermi Large Area Telescope

None
Date: December 14, 2012
Creator: Ackermann, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; Barbiellini, G. et al.
Object Type: Article
System: The UNT Digital Library
Top physics: search for anomalous kinematics in t anti-t dilepton events at cdf ii (open access)

Top physics: search for anomalous kinematics in t anti-t dilepton events at cdf ii

We report on a search for anomalous kinematics of t{bar t} dilepton events in p{bar p} collisions at {radical}s = 1.96 TeV using 193 pb{sup -1} of data collected with the CDF II detector. We developed a new a priori technique designed to isolate the subset in a data sample revealing the largest deviation from standard model (SM) expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy and we find that the probability of obtaining a data sample less consistent with the SM than what is observed is 1.0-4.5%.
Date: December 14, 2004
Creator: Acosta, D.
Object Type: Report
System: The UNT Digital Library
The Breckenridge American (Breckenridge, Tex.), Vol. 9, No. 36, Ed. 1, Friday, December 14, 1928 (open access)

The Breckenridge American (Breckenridge, Tex.), Vol. 9, No. 36, Ed. 1, Friday, December 14, 1928

Daily newspaper from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: December 14, 1928
Creator: Adair, A. Garland
Object Type: Newspaper
System: The Portal to Texas History
The Mineola Monitor (Mineola, Tex.), Vol. 50, No. 42, Ed. 1 Thursday, December 14, 1922 (open access)

The Mineola Monitor (Mineola, Tex.), Vol. 50, No. 42, Ed. 1 Thursday, December 14, 1922

Weekly newspaper from Mineola, Texas that includes local, state and national news along with advertising.
Date: December 14, 1922
Creator: Adair, H. J.
Object Type: Newspaper
System: The Portal to Texas History
The Forgan Advocate (Forgan, Okla.), Vol. 7, No. 9, Ed. 1 Thursday, December 14, 1933 (open access)

The Forgan Advocate (Forgan, Okla.), Vol. 7, No. 9, Ed. 1 Thursday, December 14, 1933

Weekly newspaper from Forgan, Oklahoma that includes local, state, and national news along with advertising.
Date: December 14, 1933
Creator: Adams, Aline
Object Type: Newspaper
System: The Gateway to Oklahoma History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 73, No. 246, Ed. 1 Tuesday, December 14, 1982 (open access)

Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 73, No. 246, Ed. 1 Tuesday, December 14, 1982

Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date: December 14, 1982
Creator: Adams, Bill
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Paducah Post (Paducah, Tex.), Vol. 82, No. 43, Ed. 1 Wednesday, December 14, 1988 (open access)

The Paducah Post (Paducah, Tex.), Vol. 82, No. 43, Ed. 1 Wednesday, December 14, 1988

Weekly newspaper from Paducah, Texas that includes local, state, and national news along with advertising.
Date: December 14, 1988
Creator: Adams, Patty
Object Type: Newspaper
System: The Portal to Texas History
Automatic Signal System (open access)

Automatic Signal System

Patent for an automatic signal system for use with railways. Illustrations included.
Date: December 14, 1909
Creator: Adams, Powell O.
Object Type: Patent
System: The Portal to Texas History
Forney Tribune. (Forney, Tex.), Vol. 4, No. 29, Ed. 1 Wednesday, December 14, 1892 (open access)

Forney Tribune. (Forney, Tex.), Vol. 4, No. 29, Ed. 1 Wednesday, December 14, 1892

Weekly newspaper from Forney, Texas that includes local, state, and national news along with advertising.
Date: December 14, 1892
Creator: Adams, Walter D.
Object Type: Newspaper
System: The Portal to Texas History
The Edmond Enterprise (Edmond, Okla.), Vol. 22, No. 46, Ed. 1 Thursday, December 14, 1922 (open access)

The Edmond Enterprise (Edmond, Okla.), Vol. 22, No. 46, Ed. 1 Thursday, December 14, 1922

Weekly newspaper from Edmond, Oklahoma that includes local, state, and national news along with advertising.
Date: December 14, 1922
Creator: Adamson, Royce B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 71, No. 249, Ed. 1 Sunday, December 14, 1980 (open access)

Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 71, No. 249, Ed. 1 Sunday, December 14, 1980

Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date: December 14, 1980
Creator: Adkisson, Larry R.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Oilton Gusher (Oilton, Okla.), Vol. 7, No. 28, Ed. 1 Thursday, December 14, 1922 (open access)

The Oilton Gusher (Oilton, Okla.), Vol. 7, No. 28, Ed. 1 Thursday, December 14, 1922

Weekly newspaper from Oilton, Oklahoma that includes local, state, and national news along with advertising.
Date: December 14, 1922
Creator: Admire, Eli L.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Ash & Pulverized Coal Deposition in Combustors & Gasifiers (open access)

Ash & Pulverized Coal Deposition in Combustors & Gasifiers

Gravity- driven granular flow of slightly frictional particles down an inclined, bumpy chute is studied. A modified kinetic model which includes the frictional energy loss effects is used, and the boundary conditions for a bumpy wall with small friction are derived by ensuring the balance of momentum and energy. At the free surface, the condition of vanishing of the solid volume fraction is used. The mean velocity, the fluctuation kinetic energy and the solid volume fraction profiles are evaluated. It is shown that steady granular gravity flow down a bumpy frictional chute could be achieved at arbitrary inclination angles. The computational results also show that the slip velocity may vary considerably depending on the granular layer height, the surface boundary roughness, the fric-tion coefficient and the inclination angles. The model predictions are compared with the existing experimental and simulation data, and good agreement is observed. In particular, the model can well predicate the features of the variation of solid volume fraction and fluctuation energy profiles for different particle- wall friction coeffi-cients and wall roughnesses.
Date: December 14, 1998
Creator: Ahamadi, Goodarz
Object Type: Report
System: The UNT Digital Library
[Photograph 2012.201.B0300.0210]

[Photograph 2012.201.B0300.0210]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Clowning at Christmas through holiday puppets are Bob Hudson and Andrea Porter, both 14."
Date: December 14, 1971
Creator: Aker, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History
[Photograph 2012.201.B0875.0263]

[Photograph 2012.201.B0875.0263]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Ford Motor Co. branch manager Joe Martin."
Date: December 14, 1971
Creator: Aker, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History
The Megaphone (Georgetown, Tex.), Vol. 14, No. 11, Ed. 1 Tuesday, December 14, 1920 (open access)

The Megaphone (Georgetown, Tex.), Vol. 14, No. 11, Ed. 1 Tuesday, December 14, 1920

Weekly student newspaper from Southwestern University in Georgetown, Texas that includes campus news along with advertising.
Date: December 14, 1920
Creator: Akin, Henry D.
Object Type: Newspaper
System: The Portal to Texas History
Nuclear Data Project Evaluation Activity Report (open access)

Nuclear Data Project Evaluation Activity Report

This report summarizes the activities of the ORNL Nuclear Data Project since the IAEA Advisory Group meeting in October 1996. The group's future plans are also included.
Date: December 14, 1998
Creator: Akovali, Y. A.; Artna-Cohen, A.; Blackmon, J. C.; Radford, D.; Smith, M. S. & Yu, C. H.
Object Type: Article
System: The UNT Digital Library
[BASEMENT BOX 66.0164]

[BASEMENT BOX 66.0164]

Caption: "Firemen survey crumpled roof section at Greenhaw's Supermarket, 9221 NE 10, where an early morning fire destroyed the stock and left damage estimated at $225,000." Firemen inspect caved in roof at Greenhaw's Supermarket.
Date: December 14, 1971
Creator: Albright, Bob
Object Type: Photograph
System: The Gateway to Oklahoma History