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Rawhide Ranger, Ira Aten: Enforcing Law on the Texas Frontier
Access:
Use of this item is restricted to the UNT Community
Ira Aten (1862-1953) was the epitome of a frontier lawman. At age twenty he enrolled in Company D during the transition of the Rangers from Indian fighters to topnotch peace officers. This unit—and Aten—would have a lively time making their mark in nineteenth-century Texas. The preponderance of Texas Ranger treatments center on the outfit as an institution or spotlight the narratives of specific captains. Bob Alexander aptly demonstrated in Winchester Warriors: Texas Rangers of Company D, 1874-1901 that there is merit in probing the lives of everyday working Rangers. Aten is an ideal example. The years Ira spent as a Ranger are jam-packed with adventure, border troubles, shoot-outs, solving major crimes—a quadruple homicide—and manhunts. Aten’s role in these and epochal Texas events such as the racially insensitive Jaybird/Woodpecker Feud and the bloody Fence Cutting Wars earned Ira’s spot in the Ranger Hall of Fame. His law enforcing deeds transcend days with the Rangers. Ira served two counties as sheriff, terms spiked with excitement. Afterward, for ten years on the XIT, he was tasked with clearing the ranch’s Escarbada Division of cattle thieves. Aten’s story spins on an axis of spine-tingling Texas history. Moving to California, Ira was active in transforming …
Date:
July 15, 2011
Creator:
Alexander, Bob
Object Type:
Book
System:
The UNT Digital Library
Riding Lucifer's Line: Ranger Deaths Along the Texas-mexico Border
Access:
Use of this item is restricted to the UNT Community
The Texas-Mexico border is trouble. Haphazardly splashing across the meandering Rio Grande into Mexico is—or at least can be—risky business, hazardous to one’s health and well-being. Kirby W. Dendy, the Chief of Texas Rangers, corroborates the sobering reality: “As their predecessors for over one hundred forty years before them did, today’s Texas Rangers continue to battle violence and transnational criminals along the Texas-Mexico border.” In Riding Lucifer’s Line, Bob Alexander, in his characteristic storytelling style, surveys the personal tragedies of twenty-five Texas Rangers who made the ultimate sacrifice as they scouted and enforced laws throughout borderland counties adjacent to the Rio Grande. The timeframe commences in 1874 with formation of the Frontier Battalion, which is when the Texas Rangers were actually institutionalized as a law enforcing entity, and concludes with the last known Texas Ranger death along the border in 1921. Alexander also discusses the transition of the Rangers in two introductory sections: “The Frontier Battalion Era, 1874-1901” and “The Ranger Force Era, 1901-1935,” wherein he follows Texas Rangers moving from an epochal narrative of the Old West to more modern, technological times. Written absent a preprogrammed agenda, Riding Lucifer’s Line is legitimate history. Adhering to facts, the author is …
Date:
May 15, 2013
Creator:
Alexander, Bob
Object Type:
Book
System:
The UNT Digital Library
Oral History Interview with Frank Alexander, July 15, 2014
The National Museum of the Pacific War presents an interview with Frank Alexander. Alexander joined the Army Air Forces in 1942 and trained in Texas and Massachusetts as an airplane mechanic. He went overseas to England in December, 1944. He began flying combat missions on a B-17 as a flight engineer in February and was in a midair collision on his first mission. He bailed out and was rescued by Allied forces and returned to service to fly on 18 more combat missions. In April, he was shot down again, but captured by German soldiers and sent to Stalag VII A. Alexander was liberated after about a month of captivity. He returned to the US and was discharged in the fall of 1945.
Date:
July 15, 2014
Creator:
Alexander, Frank
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Frank Alexander, July 15, 2014
The National Museum of the Pacific War presents an interview with Frank Alexander. Alexander joined the Army Air Forces in 1942 and trained in Texas and Massachusetts as an airplane mechanic. He went overseas to England in December, 1944. He began flying combat missions on a B-17 as a flight engineer in February and was in a midair collision on his first mission. He bailed out and was rescued by Allied forces and returned to service to fly on 18 more combat missions. In April, he was shot down again, but captured by German soldiers and sent to Stalag VII A. Alexander was liberated after about a month of captivity. He returned to the US and was discharged in the fall of 1945.
Date:
July 15, 2014
Creator:
Alexander, Frank
Object Type:
Text
System:
The Portal to Texas History
Oral History Interview with Erio Enzo Pedini, November 15, 2015
Access:
Use of this item is restricted to the UNT Community
Transcript of an interview with Erio Enzo Pedini, an immigrant from the Republic of San Marino. Pedini recounts memories growing up in the Republic of San Marino and going to school in Italy; Coming to America in 1958 and the differences in cultures and lifestyles; Living and working in Detroit, Michigan; becoming a U.S. citizen; moving to Dallas, Texas; and working in the building industry.
Date:
November 15, 2015
Creator:
Alexander, Matthew & Pedini, Erio Enzo 1946-
Object Type:
Book
System:
The UNT Digital Library
Helium measurements of pore-fluids obtained from SAFOD drillcore
{sup 4}He accumulated in fluids is a well established geochemical tracer used to study crustal fluid dynamics. Direct fluid samples are not always collectable; therefore, a method to extract rare gases from matrix fluids of whole rocks by diffusion has been adapted. Helium was measured on matrix fluids extracted from sandstones and mudstones recovered during the San Andreas Fault Observatory at Depth (SAFOD) drilling in California, USA. Samples were typically collected as subcores or from drillcore fragments. Helium concentration and isotope ratios were measured 4-6 times on each sample, and indicate a bulk {sup 4}He diffusion coefficient of 3.5 {+-} 1.3 x 10{sup -8} cm{sup 2}s{sup -1} at 21 C, compared to previously published diffusion coefficients of 1.2 x 10{sup -18} cm{sup 2}s{sup -1} (21 C) to 3.0 x 10{sup -15} cm{sup 2}s{sup -1} (150 C) in the sands and clays. Correcting the diffusion coefficient of {sup 4}He{sub water} for matrix porosity ({approx}3%) and tortuosity ({approx}6-13) produces effective diffusion coefficients of 1 x 10{sup -8} cm{sup 2}s{sup -1} (21 C) and 1 x 10{sup -7} (120 C), effectively isolating pore fluid {sup 4}He from the {sup 4}He contained in the rock matrix. Model calculations indicate that <6% of helium initially …
Date:
April 15, 2010
Creator:
Ali, S.; Stute, M.; Torgersen, T.; Winckler, G. & Kennedy, B.M.
Object Type:
Article
System:
The UNT Digital Library
Distributed H{sub 2} Supply for Fuel Cell Utility Vehicles Year 6 - Activity 3.5 - Development fo a National Center for Hydrogen Technology
The Energy & Environmental Research Center (EERC) has developed a high-pressure hydrogen production system that reforms a liquid organic feedstock and water at operating pressures up to 800 bar (~12,000 psig). The advantages of this system include the elimination of energy-intensive hydrogen compression, a smaller process footprint, and the elimination of gaseous or liquid hydrogen transport. This system could also potentially enable distributed hydrogen production from centralized coal. Processes have been investigated to gasify coal and then convert the syngas into alcohol or alkanes. These alcohols and alkanes could then be easily transported in bulk to distributed high-pressure water-reforming (HPWR)-based systems to deliver hydrogen economically. The intent of this activity was to utilize the EERC’s existing HPWR hydrogen production process, previously designed and constructed in a prior project phase, as a basis to improve operational and production performance of an existing demonstration unit. Parameters to be pursued included higher hydrogen delivery pressure, higher hydrogen production rates, and the ability to refill within a 5-minute time frame.
Date:
April 15, 2012
Creator:
Almlie, Jay
Object Type:
Report
System:
The UNT Digital Library
The Universal Code
Poster presentation for the 2010 University Scholars Day at the University of North Texas discussing research on the universal code.
Date:
April 15, 2010
Creator:
Alvarado, Roberto & Kirk, Andrea B.
Object Type:
Poster
System:
The UNT Digital Library
Where the Sidewalk Ends: Jets and Missing Energy Search Strategies for the 7 TeV LHC
This work explores the potential reach of the 7 TeV LHC to new colored states in the context of simplified models and addresses the issue of which search regions are necessary to cover an extensive set of event topologies and kinematic regimes. This article demonstrates that if searches are designed to focus on specific regions of phase space, then new physics may be missed if it lies in unexpected corners. Simple multiregion search strategies can be designed to cover all of kinematic possibilities. A set of benchmark models are created that cover the qualitatively different signatures and a benchmark multiregion search strategy is presented that covers these models.
Date:
August 15, 2011
Creator:
Alves, Daniele S.M.; Izaguirre, Eder; Wacker, Jay G. & /SLAC /Stanford U., ITP
Object Type:
Article
System:
The UNT Digital Library
Nanosensors as Reservoir Engineering Tools to Map Insitu Temperature Distributions in Geothermal Reservoirs
The feasibility of using nanosensors to measure temperature distribution and predict thermal breakthrough in geothermal reservoirs is addressed in this report. Four candidate sensors were identified: melting tin-bismuth alloy nanoparticles, silica nanoparticles with covalently-attached dye, hollow silica nanoparticles with encapsulated dye and impermeable melting shells, and dye-polymer composite time-temperature indicators. Four main challenges associated with the successful implementation of temperature nanosensors were identified: nanoparticle mobility in porous and fractured media, the collection and detection of nanoparticles at the production well, engineering temperature sensing mechanisms that are both detectable and irreversible, and inferring the spatial geolocation of temperature measurements in order to map temperature distribution. Initial experiments were carried out to investigate each of these challenges. It was demonstrated in a slim-tube injection experiment that it is possible to transport silica nanoparticles over large distances through porous media. The feasibility of magnetic collection of nanoparticles from produced fluid was evaluated experimentally, and it was estimated that 3% of the injected nanoparticles were recovered in a prototype magnetic collection device. An analysis technique was tailored to nanosensors with a dye-release mechanism to estimate temperature measurement geolocation by analyzing the return curve of the released dye. This technique was used in a hypothetical …
Date:
June 15, 2011
Creator:
Ames, Morgan.
Object Type:
Report
System:
The UNT Digital Library
Bulk Superconductivity and Disorder in Single Crystals of LaFePO
We have studied the intrinsic normal and superconducting properties of the oxypnictide LaFePO. These samples exhibit bulk superconductivity and the evidence suggests that stoichiometric LaFePO is indeed superconducting, in contrast to other reports. We find that superconductivity is independent of the interplane residual resistivity {rho}{sub 0} and discuss the implications of this on the nature of the superconducting order parameter. Finally we find that, unlike T{sub c}, other properties in single-crystal LaFePO including the resistivity and magnetoresistance, can be very sensitive to disorder.
Date:
February 15, 2010
Creator:
Analytis, James G.; Chu, Jiun-Haw; Erickson, Ann S.; Kucharczyk, Chris; /Stanford U., Appl. Phys. Dept.; Serafin, Alessandro et al.
Object Type:
Article
System:
The UNT Digital Library
Preliminary Screening Analysis for the Environmental Risk Evaluation System: Task 2.1.1: Evaluating Effects of Stressors – Fiscal Year 2010 Progress Report: Environmental Effects of Marine and Hydrokinetic Energy
Possible environmental effects of marine and hydrokinetic (MHK) energy development are not well understood, and yet regulatory agencies are required to make decisions in spite of substantial uncertainty about environmental impacts and their long-term effects. An understanding of risk associated with likely interactions between MHK installations and aquatic receptors, including animals, habitats, and ecosystems, can help reduce the level of uncertainty and focus regulatory actions and scientific studies on interactions of most concern. As a first step in developing the Pacific Northwest National Laboratory (PNNL) Environmental Risk Evaluation System (ERES), PNNL scientists conducted a preliminary risk screening analysis on three initial MHK cases - a tidal project in Puget Sound using Open Hydro turbines, a wave project off the coast of Oregon using Ocean Power Technologies point attenuator buoys, and a riverine current project in the Mississippi River using Free Flow turbines. Through an iterative process, the screening analysis revealed that top-tier stressors in all three cases were the effects of the dynamic physical presence of the device (e.g., strike), accidents, and effects of the static physical presence of the device (e.g., habitat alteration). Receptor interactions with these stressors at the four highest tiers of risk were dominated by marine …
Date:
November 15, 2010
Creator:
Anderson, Richard M.; Copping, Andrea E. & Van Cleve, Frances B.
Object Type:
Report
System:
The UNT Digital Library
Muon-induced backgrounds in the CUORICINO experiment
To better understand the contribution of cosmic ray muons to the CUORICINO background, ten plastic scintillator detectors were installed at the CUORICINO siteand operated during the final 3 months of the experiment. From these measurements, an upper limit of 0.0021 counts/(keV.kg.yr) (95percent c.l.) was obtained on the cosmicray induced background in the neutrinoless double beta decay region of interest. The measurements were also compared to Geant4 simulations.
Date:
April 15, 2010
Creator:
Andreotti, E.; Arnaboldi, C.; Avignone, F. T. III; Balata, M.; Bandac, I.; Barucci, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Federal Agency Authority to Contract for Electric Power and Renewable Energy Supply
None
Date:
August 15, 2011
Creator:
Andrews, Anthony
Object Type:
Report
System:
The UNT Digital Library
Labeled PDF Dataset from UNT.edu
This dataset contains a random sample of 2000 PDF documents from the Spring 2017 Web Archive of the unt.edu domain. (https://digital.library.unt.edu/ark:/67531/metadc993363/) that have been sorted into two categories, ForRepo and NotForRepo.
Date:
November 15, 2017
Creator:
Andrews, Pamela & Phillips, Mark Edward
Object Type:
Dataset
System:
The UNT Digital Library
Quasiparticle Freeze-Out in Superconducting Tunnel Junction X-Ray Detectors with Killed Base Electrode
None
Date:
July 15, 2013
Creator:
Andrianov, V A; Filippenko, L V & Friedrich, S
Object Type:
Article
System:
The UNT Digital Library
Daily Tribune (Mount Pleasant, Tex.), Vol. 140, No. 138, Ed. 1 Tuesday, July 15, 2014
Daily newspaper from Mount Pleasant, Texas that includes local, state, and national news along with advertising.
Date:
July 15, 2014
Creator:
Antonelli, Lou & Borders, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Daily Tribune (Mount Pleasant, Tex.), Vol. 140, No. 161, Ed. 1 Friday, August 15, 2014
Daily newspaper from Mount Pleasant, Texas that includes local, state, and national news along with advertising.
Date:
August 15, 2014
Creator:
Antonelli, Lou & Borders, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Daily Tribune (Mount Pleasant, Tex.), Vol. 140, No. 204, Ed. 1 Wednesday, October 15, 2014
Daily newspaper from Mount Pleasant, Texas that includes local, state, and national news along with advertising.
Date:
October 15, 2014
Creator:
Antonelli, Lou & Borders, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Daily Tribune (Mount Pleasant, Tex.), Vol. 140, No. 117, Ed. 1 Sunday, June 15, 2014
Daily newspaper from Mount Pleasant, Texas that includes local, state, and national news along with advertising.
Date:
June 15, 2014
Creator:
Antonelli, Lou & Palmer, Robert L.
Object Type:
Newspaper
System:
The Portal to Texas History
Dynamic Behavior of Sand: Annual Report FY 11
Currently, design of earth-penetrating munitions relies heavily on empirical relationships to estimate behavior, making it difficult to design novel munitions or address novel target situations without expensive and time-consuming full-scale testing with relevant system and target characteristics. Enhancing design through numerical studies and modeling could help reduce the extent and duration of full-scale testing if the models have enough fidelity to capture all of the relevant parameters. This can be separated into three distinct problems: that of the penetrator structural and component response, that of the target response, and that of the coupling between the two. This project focuses on enhancing understanding of the target response, specifically granular geomaterials, where the temporal and spatial multi-scale nature of the material controls its response. As part of the overarching goal of developing computational capabilities to predict the performance of conventional earth-penetrating weapons, this project focuses specifically on developing new models and numerical capabilities for modeling sand response in ALE3D. There is general recognition that granular materials behave in a manner that defies conventional continuum approaches which rely on response locality and which degrade in the presence of strong response nonlinearities, localization, and phase gradients. There are many numerical tools available to address …
Date:
March 15, 2012
Creator:
Antoun, Tarabay; Herbold, Eric & Johnson, Scott
Object Type:
Report
System:
The UNT Digital Library
It's There, But Can You Find It? Usability Testing the Archive-It Public Interface
Presentation for the 2018 International Internet Preservation Consortium General Assembly and Web Archiving Conference. This presentation discusses the Archive-It Mid-Atlantic User Group and their usability test study.
Date:
November 15, 2018
Creator:
Antracoli, Alexis & Duncan, Sumitra
Object Type:
Presentation
System:
The UNT Digital Library
Energy Saving Melting and Revert Reduction Technology: Innovative Semi-Solid Metal (SSM) Processing
Semi-solid metal (SSM) processing has emerged as an attractive method for near-net-shape manufacturing due to the distinct advantages it holds over conventional near-net-shape forming technologies. These advantages include lower cycle time, increased die life, reduced porosity, reduced solidification shrinkage, improved mechanical properties, etc. SSM processing techniques can not only produce the complex dimensional details (e.g. thin-walled sections) associated with conventional high-pressure die castings, but also can produce high integrity castings currently attainable only with squeeze and low-pressure permanent mold casting processes. There are two primary semi-solid processing routes, (a) thixocasting and (b) rheocasting. In the thixocasting route, one starts from a non-dendritic solid precursor material that is specially prepared by a primary aluminum manufacturer, using continuous casting methods. Upon reheating this material into the mushy (a.k.a. "two-phase") zone, a thixotropic slurry is formed, which becomes the feed for the casting operation. In the rheocasting route (a.k.a. "slurry-on-demand" or "SoD"), one starts from the liquid state, and the thixotropic slurry is formed directly from the melt via careful thermal management of the system; the slurry is subsequently fed into the die cavity. Of these two routes, rheocasting is favored in that there is no premium added to the billet cost, and …
Date:
August 15, 2012
Creator:
Apelian, Diran
Object Type:
Report
System:
The UNT Digital Library
Tethered Lubricants
We have performed extensive experimental and theoretical studies of interfacial friction, relaxation dynamics, and thermodynamics of polymer chains tethered to points, planes, and particles. A key result from our tribology studies using lateral force microscopy (LFM) measurements of polydisperse brushes of linear and branched chains densely grafted to planar substrates is that there are exceedingly low friction coefficients for these systems. Specific project achievements include: (1) Synthesis of three-tiered lubricant films containing controlled amounts of free and pendent PDMS chains, and investigated the effect of their molecular weight and volume fraction on interfacial friction. (2.) Detailed studies of a family of hairy particles termed nanoscale organic hybrid materials (NOHMs) and demonstration of their use as lubricants.
Date:
September 15, 2010
Creator:
Archer, Lynden
Object Type:
Report
System:
The UNT Digital Library