Partner
UNT Libraries Government Documents Department
191
UNT Libraries Special Collections
108
UNT Libraries
36
Oklahoma Historical Society
29
National Museum of the Pacific War/Admiral Nimitz Foundation
14
UNT Music Library
14
Sterling Municipal Library
8
UNT College of Information
8
San Antonio Public Library
7
Brownwood Public Library
6
58 More
Collection
Texas Digital Newspaper Program
126
Office of Scientific & Technical Information Technical Reports
115
Congressional Research Service Reports
58
Tocker Foundation Grant
44
Multicultural Center Records
40
Oklahoma Digital Newspaper Program
34
Ken Chaney Digital Photography Collection
33
The Greensheet
29
The Black Academy of Arts and Letters Records
16
College of Music Recordings
14
87 More
Degree Department
Degree Discipline
Degree Level
States
Year
Month
Day
Results:
1 - 24 of
515
next
The Altus Times (Altus, Okla.), Vol. 112, No. 191, Ed. 1 Tuesday, January 3, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 3, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Barometric Calorimeter Experiments with C4 Charges
None
Date:
January 3, 2012
Creator:
Kuhl, A L; Tringe, J; Vandersall, K & Howard, W M
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 92, No. 2, Ed. 1 Tuesday, January 3, 2012
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 3, 2012
Creator:
Yanelli, Adam
Object Type:
Newspaper
System:
The Portal to Texas History
Central Asia: Regional Developments and Implications for U.S. Interests
U.S. policy toward the Central Asian states has aimed at facilitating their cooperation with U.S. and NATO stabilization efforts in Afghanistan and their efforts to combat terrorism, proliferation, and trafficking in arms, drugs, and persons. Other U.S. objectives have included promoting free markets, democratization, human rights, energy development, and the forging of East-West and Central Asia-South Asia trade links. Such policies aim to help the states become what various U.S. administrations have considered to be responsible members of the international community rather than to degenerate into xenophobic, extremist, and anti-Western regimes that contribute to wider regional conflict and instability
Date:
January 3, 2012
Creator:
Nichol, Jim
Object Type:
Report
System:
The UNT Digital Library
Chapter #37 General Meeting: January 3, 2012
A page from an event program for a TXSSAR Plano Chapter meeting on January 3, 2012.
Date:
January 3, 2012
Creator:
Texas Society Sons of the American Revolution, Plano Chapter 37
Object Type:
Pamphlet
System:
The UNT Digital Library
DART taking public comments on proposed route changes
News release about a series of public meetings to gather public input on proposed route and service changes intended to accompany the opening of DART's Orange Line in July and Blue Line extension in December.
Date:
January 3, 2012
Creator:
Lyons, Morgan & Ball, Mark
Object Type:
Text
System:
The Portal to Texas History
DEMONSTRATION OF MIXING AND TRANSFERRING SETTLING COHESIVE SLURRY SIMULANTS IN THE AY-102 TANK
In support of Hanford's feed delivery of high level waste (HLW) to the Waste Treatment and Immobilization Plant (WTP), pilot-scale testing and demonstrations with simulants containing cohesive particles were performed as a joint collaboration between Savannah River National Laboratory (SRNL) and the Pacific Northwest National Laboratory (PNNL) staff. The objective of the demonstrations was to determine the impact that cohesive particle interactions in the simulants, and the resulting non-Newtonian rheology, have on tank mixing and batch transfer of large and dense seed particles. The work addressed the impacts cohesive simulants have on mixing and batch transfer performance in a pilot-scale system. Kaolin slurries with a range of wt% concentrations to vary the Bingham yield stress were used in all the non-Newtonian simulants. To study the effects of just increasing the liquid viscosity (no yield stress) on mixing and batch transfers, a glycerol/water mixture was used. Stainless steel 100 micron particles were used as seed particles due to their density and their contrasting color to the kaolin and glycerol. In support of Hanford's waste certification and delivery of tank waste to the Waste Treatment and Immobilization Plant (WTP), Savannah River National Laboratory (SRNL) was tasked by Washington River Protection Solutions (WRPS) …
Date:
January 3, 2012
Creator:
Adamson, D. & Gauglitz, P.
Object Type:
Article
System:
The UNT Digital Library
Doppler Broadening Update: Broadening near the Unresolved Resonance Region
None
Date:
January 3, 2012
Creator:
Cullen, D E
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, January 3, 2012
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 3, 2012
Creator:
DeSilver, Debi
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Fact Sheet: The Social Security Retirement Age
two important ages may affect a worker's plans to claim Social Security retired-worker benefits. Workers may claim full Social Security benefits at the full retirement age, which is rising gradually to age 67 for workers who were born in 1960 and later. Retired workers may claim benefits as early as age 62, which is known as the early eligibility age. Social Security benefits are reduced, however, for every month that retired worker benefits are claimed before the full retirement age.
Date:
January 3, 2012
Creator:
Shelton, Alison M.
Object Type:
Report
System:
The UNT Digital Library
Final Report: Computer Simulation of Osmosis and Reverse Osmosis in Structured Membranes
Molecular simulation methods were developed as part of this project to increase our fundamental understanding of membrane based separation systems. Our simulations clarified for example that steric (size) effects had a significant impact on the desalination membranes. Previously it was thought the separation was entirely driven by coulombic force (attractive/repulsive forces at the membrane surfaces). Steric effects played an important role, because salt ions in brackish water are never present alone, but are strongly hydrated which effectively increases their size, and makes it impossible to enter a membrane, while the smaller water molecules can enter more readily. Membrane surface effects did play a role in increasing the flux of water, but not in the separation itself. In addition we also developed simulation methods to study ion exchange, gas separations, and pervaporation. The methods developed were used to once again increase our fundamental understanding of these separation processes. For example our studies showed that when the separation factor of gases in membranes can be significantly affected by the presence of another gas, it is generally because the separation mechanism has changed. For example in the case of nitrogen and carbon dioxide, in their pure state the separation factor is determined by …
Date:
January 3, 2012
Creator:
Murad, Sohail
Object Type:
Report
System:
The UNT Digital Library
Final Report, Validation of Novel Planar Cell Design for MW-Scale SOFC Power Systems
This report describes the work completed by NexTech Materials, Ltd. during a three-year project to validate an electrolyte-supported planar solid oxide fuel cell design, termed the FlexCell, for coal-based, megawatt-scale power generation systems. This project was focused on the fabrication and testing of electrolyte-supported FlexCells with yttria-stabilized zirconia (YSZ) as the electrolyte material. YSZ based FlexCells were made with sizes ranging from 100 to 500 cm2. Single-cell testing was performed to confirm high electrochemical performance, both with diluted hydrogen and simulated coal gas as fuels. Finite element analysis modeling was performed at The Ohio State University was performed to establish FlexCell architectures with optimum mechanical robustness. A manufacturing cost analysis was completed, which confirmed that manufacturing costs of less than $50/kW are achievable at high volumes (500 MW/year).
Date:
January 3, 2012
Creator:
Swartz, Dr Scott L.; Thrun, Dr Lora B.; Arkenberg, Mr Gene B. & Chenault, Ms Kellie M.
Object Type:
Report
System:
The UNT Digital Library
Final Scientific/Technical Report: Breakthrough Design and Implementation of Many-Body Theories for Electron Correlation
This report discusses the following highlights of the project: (1) grid-based Hartree-Fock equation solver; (2) explicitly correlated coupled-cluster and perturbation methods; (3) anharmonic vibrational frequencies and vibrationally averaged NMR and structural parameters of FHF; (4) anharmonic vibrational frequencies and vibrationally averaged structures of hydrocarbon combustion species; (5) anharmonic vibrational analysis of the guanine-cytosine base pair; (6) the nature of the Born-Oppenheimer approximation; (7) Polymers and solids Brillouin-zone downsampling - the modulo MP2 method; (8) explicitly correlated MP2 for extended systems; (9) fast correlated method for molecular crystals - solid formic acid; and (10) fast correlated method for molecular crystals - solid hydrogen fluoride.
Date:
January 3, 2012
Creator:
Hirata, So
Object Type:
Report
System:
The UNT Digital Library
The Greensheet (Austin, Tex.), Vol. 34, No. 48, Ed. 1 Tuesday, January 3, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 3, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 42, No. 577, Ed. 1 Tuesday, January 3, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 3, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 42, No. 578, Ed. 1 Tuesday, January 3, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 3, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Hydrogen Education Curriculum Path at Michigan Technological University
The objective of this project was four-fold. First, we developed new courses in alternative energy and hydrogen laboratory and update existing courses in fuel cells. Secondly, we developed hydrogen technology degree programs. Thirdly, we developed hydrogen technology related course material for core courses in chemical engineering, mechanical engineering, and electrical engineering. Finally, we developed fuel cell subject material to supplement the Felder & Rousseau and the Geankoplis chemical engineering undergraduate textbooks.
Date:
January 3, 2012
Creator:
Keith, Jason; Crowl, Daniel; Caspary, David; Naber, Jeff; Allen, Jeff; Mukerjee, Abhijit et al.
Object Type:
Report
System:
The UNT Digital Library
Ionization Effects in SDF Combustion Clouds
None
Date:
January 3, 2012
Creator:
Kuhl, A L; Balakrishman, K & Bell, J B
Object Type:
Article
System:
The UNT Digital Library
Jacksboro Gazette-News (Jacksboro, Tex.), Vol. 132, No. 30, Ed. 1 Tuesday, January 3, 2012
Weekly newspaper from Jacksboro, Texas that includes local, state and national news along with advertising.
Date:
January 3, 2012
Creator:
Hudson, Pam
Object Type:
Newspaper
System:
The Portal to Texas History
Joint Light Tactical Vehicle (JLTV): Background and Issues for Congress
The Joint Light Tactical Vehicle (JLTV) is currently being developed by the Army and the Marine Corps as a successor to the 11 different versions of the High Mobility, Multi-Wheeled Vehicle (HMMWV) that have been in service since 1985. There are concerns about the affordability of JLTVs and its redundancy with other tactical wheeled vehicles.
Date:
January 3, 2012
Creator:
Feickert, Andrew
Object Type:
Report
System:
The UNT Digital Library
Joint Meeting of Plano, McKinney and Denton SAR Chapters: January 3, 2012
Webpage from McKinney TXSSAR website containing photographs from a January 3, 2012 meeting.
Date:
January 3, 2012
Creator:
Texas Society Sons of the American Revolution, McKinney Chapter 63
Object Type:
Website
System:
The UNT Digital Library
Mechanical Characterization of Nodular Ductile Iron
The objective of this study is to characterize the strength and fracture response of nodular ductile iron (NDI) and its underlying ferritic matrix phase. Quasistatic and split Hopkinson pressure bar (SHPB) compression tests were performed on NDI and a model material for the NDI matrix phase (Fe-Si alloy). Smooth and notch round bar (NRB) samples were loaded in tension until fracture to determine strain-at-failure with varying stress triaxiality. Multiple tests were performed on each small and large smooth bar samples to obtain fracture statistics with sample size. Fracture statistics are important for initializing simulations of fragmentation events. Johnson-Cook strength models were developed for the NDI and the Fe-Si alloy. NDI strength model parameters are: A = 525 MPa, B = 650 MPa, n = 0.6, and C = 0.0205. The average SHPB experimental strain-rate of 2312/s was used for the reference strain-rate in this model. Fe-Si alloy strength model parameters are: A=560 MPa, B = 625 MPa, n = 0.5, and C = 0.02. The average SHPB experimental strain-rate of 2850/s was used for the reference strain-rate in this model. A Johnson-Cook failure model was developed for NDI with model parameters: D{sub 1} = 0.029, D{sub 2} = 0.44, D{sub …
Date:
January 3, 2012
Creator:
Springer, H K
Object Type:
Report
System:
The UNT Digital Library
Microstructural Characterization of Nodular Ductile Iron
The objective of this study is to quantify the graphite particle phase in nodular ductile iron (NDI). This study provides the basis for initializing microstructure in direct numerical simulations, as part of developing microstructure-fracture response models. The work presented here is a subset of a PhD dissertation on spall fracture in NDI. NDI is an ideal material for studying the influence of microstructure on ductile fracture because it contains a readily identifiable second-phase particle population, embedded in a ductile metallic matrix, which serves as primary void nucleation sites. Nucleated voids grow and coalesce under continued tensile loading, as part of the micromechanisms of ductile fracture, and lead to macroscopic failure. For this study, we used 2D optical microscopy and quantitative metallography relationships to characterize the volume fraction, size distribution, nearest-neighbor distance, and other higher-order metrics of the graphite particle phase. We found that the volume fraction was {Phi} = 0.115, the average particle diameter was d{sub avg} = 25.9 {mu}m, the Weibull shape and scaling parameters were {beta} = 1.8 and {eta} = 29.1 {mu}m, respectively, the (first) nearest neighbor distance was L{sub nn} = 32.4 {mu}m, the exponential coefficients for volume fraction fluctuations was A{sub {Phi}} = 1.89 and …
Date:
January 3, 2012
Creator:
Springer, H. K.
Object Type:
Report
System:
The UNT Digital Library
Oxygen isotope fractionation in the vacuum ultraviolet photodissociation of carbon monoxide: Wavelength, pressure and temperature dependency.
Several absorption bands exist in the VUV region of Carbon monoxide (CO). Emission spectra indicate that these bands are all predissociative. An experimental investigation of CO photodissociation by vacuum ultraviolet photons (90 to 108 nm; ~13 to 11 eV) from the Advanced Light Source Synchrotron and direct measurement of the associated oxygen isotopic composition of the products are presented here. A wavelength dependency of the oxygen isotopic composition in the photodissociation product was observed. Slope values (δ'{sup 18}O/ δ'{sup 17}O) ranging from 0.76 to 1.32 were observed in oxygen three-isotope space (δ'{sup 18}O vs. δ'{sup 17}O) which correlated with increasing synchrotron photon energy, and indicate a dependency of the upper electronic state specific dissociation dynamics (e.g., perturbation and coupling associated with a particular state). An unprecedented magnitude in isotope separation was observed for photodissociation at the 105 and 107 nm synchrotron bands and are found to be associated with accidental predissociation of the vibrational states ({nu} = 0 and 1) of the upper electronic state E{sup 1}Π. For each synchrotron band, a large (few hundred per mil) extent of isotopic fractionation was observed and the range of fractionation is a combination of column density and exposure time. A significant temperature …
Date:
January 3, 2012
Creator:
Chakraborty, Subrata; Davis, Ryan; Ahmed, Musahid; Jackson, Teresa L. & Thiemens, Mark H.
Object Type:
Article
System:
The UNT Digital Library