Resource Type
Partner
Oklahoma Historical Society
201
Sterling Municipal Library
33
Livingston Municipal Library
20
Coleman Public Library
18
Gladys Johnson Ritchie Library
17
UNT Libraries
17
Swisher County Library
14
UNT Libraries Government Documents Department
14
Burleson Public Library
11
Silsbee Public Library
11
68 More
Collection
Texas Digital Newspaper Program
359
Oklahoma Digital Newspaper Program
212
Tocker Foundation Grant
203
Chickasha Newspaper Collection
42
The Oklahoma City Times
36
The Baytown Sun
33
Abilene Library Consortium
29
Sapulpa Herald
23
Sapulpa Area Newspaper Collection
23
Polk County Newspapers
20
102 More
Country
States
Decade
Month
Day
Language
597 Matching Results
Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.
Results:
1 - 24 of
597
next
The J-TAC (Stephenville, Tex.), Ed. 1 Thursday, September 7, 1989
Weekly student newspaper from Tarleton State University in Stephenville, Texas that includes local, state and campus news along with advertising.
Date:
September 7, 1989
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Difficulties with inferring neutron cross sections from charged-particle reactions
We have investigated problems associated with inferring cross sections for neutron reactions on unstable nuclei in the mass-90 region from charged-particle reactions on nearby stable targets. We conclude that effects due to precompound evaporation, isospin, and multiple reaction paths severely limit the circumstances under which charged-particle studies may be directly and easily converted to neutron cross sections of useful accuracy. 4 refs., 2 figs.
Date:
May 7, 1985
Creator:
Gardner, D. G. & Gardner, M. A.
Object Type:
Article
System:
The UNT Digital Library
Importance of level structure in nuclear reaction cross-section calculations. Revision 1
It is shown that level-density expressions cannot adequately represent or substitute for level structure information when making calculations of the Hauser-Feshbach type for cross sections or isomer-ratios for nuclei in the first few MeV above their ground state. It is stated that such discrete level information should include both experimentally confirmed and theoretically predicted levels. The utility of discrete level information to optimize level density calculations, to compute isomer ratios, in deriving dipole strength functions, and in the analysis of primary gamma ray spectra is emphasized, especially for nuclei far from the line of stability. 29 refs., 12 figs., 6 tabs. (DWL)
Date:
November 7, 1985
Creator:
Gardner, M. A. & Gardner, D. G.
Object Type:
Article
System:
The UNT Digital Library
Calculational tools for the evaluation of nuclear cross-section and spectra data
A technique based on discrete energy levels rather than energy level densities is presented for nuclear reaction calculations. The validity of the technique is demonstrated via theoretical and experimental agreement for cross sections, isomer-ratios and gamma-ray strength functions. 50 refs., 7 figs. (WRF)
Date:
May 7, 1985
Creator:
Gardner, M.A.
Object Type:
Article
System:
The UNT Digital Library
Study of gamma-ray strength functions
The use of gamma-ray strength function systematics to calculate neutron capture cross sections and capture gamma-ray spectra is discussed. The ratio of the average capture width, GAMMA/sub ..gamma../-bar, to the average level spacing, D/sub obs/, both at the neutron separation energy, can be derived from such systematics with much less uncertainty than from separate systematics for values of GAMMA/sub ..gamma../-bar and D/sub obs/. In particular, the E1 gamma-ray strength function is defined in terms of the giant dipole resonance (GDR). The GDR line shape is modeled with the usual Lorentzian function and also with a new energy-dependent, Breit-Wigner (EDBW) function. This latter form is further parameterized in terms of two overlapping resonances, even for nuclei where photonuclear measurements do not resolve two peaks. In the mass ranges studied, such modeling is successful for all nuclei away from the N = 50 closed neutron shell. Near the N = 50 shell, a one-peak EDBW appears to be more appropriate. Examples of calculated neutron capture excitation functions and capture gamma-ray spectra using the EDBW form are given for target nuclei in the mass-90 region and also in the Ta-Au mass region. 20 figures.
Date:
August 7, 1980
Creator:
Gardner, D. G.; Gardner, M. A. & Dietrich, F. S.
Object Type:
Report
System:
The UNT Digital Library
Modeling level structures of odd-odd deformed nuclei
A technique for modeling quasiparticle excitation energies and rotational parameters in odd-odd deformed nuclei has been applied to actinide species where new experimental data have been obtained by use of neutron-capture gamma-ray spectroscopy. The input parameters required for the calculation were derived from empirical data on single-particle excitations in neighboring odd-mass nuclei. Calculated configuration-specific values for the Gallagher-Moszkowski splittings were used. Calculated and experimental level structures for /sup 238/Np, /sup 244/Am, and /sup 250/Bk are compared, as well as those for several nuclei in the rare-earth region. The agreement for the actinide species is excellent, with bandhead energies deviating 22 keV and rotational parameters 5%, on the average. Corresponding average deviations for five rare-earth nuclei are 47 keV and 7%. Several applications of this modeling technique are discussed. 18 refs., 5 figs., 4 tabs.
Date:
September 7, 1984
Creator:
Hoff, R.W.; Kern, J.; Piepenbring, R. & Boisson, J.P.
Object Type:
Article
System:
The UNT Digital Library
The Perry Daily Journal (Perry, Okla.), Vol. 93, No. 126, Ed. 1 Monday, July 7, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 7, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 94, No. 256, Ed. 1 Monday, December 7, 1987
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 7, 1987
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 89, No. 309, Ed. 1 Monday, February 7, 1983
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 7, 1983
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 90, No. 6, Ed. 1 Thursday, February 7, 1985
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 7, 1985
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Bosque County Record Tribune (Clifton, Tex.), Vol. 94, No. 36, Ed. 1 Thursday, September 7, 1989
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
September 7, 1989
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 95, No. 256, Ed. 1 Wednesday, December 7, 1988
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 7, 1988
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 90, No. 283, Ed. 1 Saturday, January 7, 1984
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 7, 1984
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 3, Ed. 1 Saturday, February 7, 1981
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 7, 1981
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 285, Ed. 1 Thursday, January 7, 1982
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 7, 1982
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 90, No. 10, Ed. 1 Thursday, March 7, 1985
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
March 7, 1985
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 91, No. 232, Ed. 1 Wednesday, November 7, 1984
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 7, 1984
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 94, No. 281, Ed. 1 Thursday, January 7, 1988
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 7, 1988
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 91, No. 103, Ed. 1 Thursday, June 7, 1984
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 7, 1984
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 96, No. 152, Ed. 1 Monday, August 7, 1989
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 7, 1989
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 95, No. 101, Ed. 1 Tuesday, June 7, 1988
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 7, 1988
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 87, No. 238, Ed. 1 Friday, November 7, 1980
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 7, 1980
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 87, No. 211, Ed. 1 Tuesday, October 7, 1980
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 7, 1980
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 95, No. 205, Ed. 1 Friday, October 7, 1988
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 7, 1988
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History