Collection
UNT Scholarly Works
2,191
UNT Global Studies Faculty Seminar
27
User-Centered Design of Language Archives
26
UNT Graduate Student Works
26
UNT Data Repository
17
UNT Research Symposium on African Studies
3
General Collection
3
UNT Equity and Diversity Programming
2
Computational Resource on South Asian Languages
1
Developing Infrastructure for a Computational Resource on South Asian Languages
1
1 More
Serial/Series Title
Rediscovery of the Elements
49
Sub-Antarctic Biocultural Conservation Program
42
UNT Speaks Out
19
University Forum on Teaching & Learning (UFTL)
8
Global Studies Faculty Seminar Visiting Speaker Series
7
El Espejo
3
Solubility Data Series
3
UNT Research Symposium on African Studies
3
International Data Series. Series A: Thermodyanamic Properties of Non-reacting Binary Systems of Organic Substances
2
Mapping Texts
1
1 More
Degree Department
Degree Discipline
Country
States
Decade
Month
2,275 Matching Results
Results open in a new window/tab.
prev
Results:
2,257 - 2,275 of
2,275
Dual levitated coils for antihydrogen production
Article on theoretical and experimental efforts to use dual levitated coils to confine relatively large, cold, dense non-drifting recombining antihydrogen plasmas. The theoretical effort includes the development of a classical trajectory Monte Carlo simulation of confinement. The experimental effort includes levitation of a NdFeB permanent ring magnet, which produces a magnetic field that is qualitatively similar to the field that would be produced by the two coaxial superconducting magnetic coils.
Date:
April 19, 2013
Creator:
Wofford, Joshua D. & Ordonez, Carlos A.
Object Type:
Article
System:
The UNT Digital Library
Antihydrogen Synthesis Via Magnetobound States of Protonium Within Proton-Positron-Antiproton Plasmas
Article studies the possibility that antihydrogen can be synthesized via three body recombination involving magnetobound protonium through classical trajectory simulation. It has been previously reported that proton antiproton collisions can result in a correlated drift of the particles perpendicular to a magnetic field. While the two particles are in their correlated drift, they are referred to as a magnetobound protonium system. Possible three body recombination resulting in bound state antihydrogen is studied when a magnetobound protonium system encounters a positron.
Date:
July 2016
Creator:
Hermosillo, M. & Ordonez, Carlos A.
Object Type:
Article
System:
The UNT Digital Library
Effect of a finite antiproton mass on antihydrogen synthesis via magnetobound positronium within electron-positron-antiproton plasmas
This article describes a study that was conducted to determine what would happen if a magnetobound positronium system encountered a finite-mass antiproton. The simulation incorporates a strong magnetic field (1 T) similar to that found within Penning traps. The simulation shows that with a finite-mass antiproton, the electron will be ejected from the system, and the positron is captured into a bound state with an antiproton thereby synthesizing antihydrogen.
Date:
July 2016
Creator:
Thornton, E. A. & Ordonez, Carlos A.
Object Type:
Article
System:
The UNT Digital Library
Magnetobound positronium and protonium
This article investigates the formation of magnetobound positronium and protonium via classical trajectory simulations of binary point charge interactions in an external magnetic field. The results of computer simulations of the fully three-dimensional trajectories of classical and non-relativistic point charges with the same mass, equal charge magnitude, and opposite sign are reported. The simulations show the formation of magnetobound positronium and protonium. The results yield formation cross sections, which are compared to analytical expressions. Additionally, the results reveal that magnetobound states drift across magnetic field lines.
Date:
August 27, 2014
Creator:
Correa, J. R. & Ordonez, Carlos A.
Object Type:
Article
System:
The UNT Digital Library
Phase space of positron trajectories exiting a charged particle source through a magnetic field point cusp
This article presents a configuration of magnetic fields using properties of cylindrically symmetric permanent magnets as a candidate to produce a high purity charged particle source or trap. Cylindrically symmetric hollow permanent magnets produce magnetic field point cusps on the axis of symmetry. A magnetic field point cusp reflects all particles that lie outside a narrow region of phase space, a region dependent on particle kinetic energies and on the magnetic field intensity.
Date:
December 30, 2013
Creator:
Kiester, A. S.; Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
Object Type:
Article
System:
The UNT Digital Library
Giant cross-magnetic-field steps due to binary collisions between pair particles
Article explores giant cross-magnetic-field steps which occur as a result of positron-electron collisions. Within a constant magnetic field (e.g., 1 T), a collision between a positron and an electron can result in a correlated drift across the magnetic field for a continuous range of impact parameters. Within this range, drift distances orders of magnitude larger than that associated with like-charge collisions were observed by computer simulation.
Date:
March 5, 2015
Creator:
Aguirre, F. F. & Ordonez, Carlos A.
Object Type:
Article
System:
The UNT Digital Library
An Exploratory Flow Reactor Study of Hydrogen Sulfide Oxidation at 30–100 Bar
Article exploring experiments on hydrogen sulfide oxidation that were conducted in Oâ‚‚/Nâ‚‚ at high pressure (30 and 100 bar) under oxidizing and stoichiometric conditions.
Date:
November 9, 2016
Creator:
Song, Yu; Hashemi, Hamid; Christensen, Jakob Munkholt; Zou, Chun; Haynes, Brian S.; Marshall, Paul et al.
Object Type:
Article
System:
The UNT Digital Library
Experimental and Kinetic Modeling Study of Acetylene Oxidation at High Pressure
Article describing a detailed chemical kinetic model for oxidation of acetylene at intermediate temperatures and high pressure that was developed and evaluated experimentally.
Date:
August 29, 2016
Creator:
Lopez, Jorge Gimenez; Rasmussen, Christian Lund; Hashemi, Hamid; Alzueta, MarÃa U.; Gao, Yide; Marshall, Paul et al.
Object Type:
Article
System:
The UNT Digital Library
Terrestrial herpetofauna of Limnos and Agios Efstratios (Northern Aegean, Greece), including new species records for Malpolon insignitus (Geoffroy Saint-Hilaire, 1827) and Pelobates syriacus Boettger, 1889
This article presents herpetofaunal observations from Limnos and Agios Efstratios, two Asia Minor continental shelf islands in the Aegean Sea. Comprehensive surveys over 88 days in total on Limnos, over a period of nine years, consisted mainly of visual encounter surveys and road cruised observations, revealed the presence of three species of amphibians and twelve species of reptiles, including two new species records for the island (Malpolon insignitus and Pelobates syriacus). The results of these surveys provide a clearer understanding of the extant herpetofauna on Limnos and Agios Efstratios and offer discussion on natural history, possible erroneous historical records and preliminary ecological understanding of the herpetofaunal assemblages residing on these islands.
Date:
October 25, 2016
Creator:
Strachinis, Ilias & Roussos, Stephanos Antonios
Object Type:
Article
System:
The UNT Digital Library
The Impact of Mental Aerobics Training on Older Adults
This article investigates the impact of mental aerobics on older adults. Findings support the conclusion that MA can be an effective intervention in improving older adults’ affectivity, everyday task self-efficacy, and self-rated health.
Date:
May 1, 2015
Creator:
Hayslip, Bert; Paggi, Kay & Caballero, Daniela
Object Type:
Article
System:
The UNT Digital Library
The Internet and College Students' Motivation to Vote
This article investigates the impact of the political information available on-line on college students’ motivation to vote. The results illustrate that not only politicians, but educators should be cognizant of this civic engagement process. Schools and teachers of all levels are one the front lines of the battle to create a more informed, more involved citizenry; higher education has a strong influence on motivation to vote.
Date:
March 1, 2004
Creator:
White, Amy E. & King, Kimi L.
Object Type:
Article
System:
The UNT Digital Library
Exploratory User Research for Computational Resource for South Asian Languages
Report for the project, Exploratory User Research for CoRSAL, which was an exploratory ethnographic study to generate a foundational understanding of how different user groups might use a planned language archive for South Asian languages. Their research project was to be used by the CoRSAL team to help plan the design of CoRSAL’s infrastructure, and laid the groundwork for further studies that will take a deeper look at issues surrounding the design and use of the planned language archive.
Date:
December 7, 2016
Creator:
Al Smadi, Duha; Barnes, Sebastian; Blair, Molly; Chong, Miyoung; Cole-Jett, Robin; Davis, Aaron et al.
Object Type:
Report
System:
The UNT Digital Library
Appendix A: Jones Cemetery
This appendix contains an alphabetized and annotated list of burials identified in Jones Cemetery, with available birth and death rates. This study represents the findings of research done on the Jones and Johnson farms, "situated in Johnson Branch Park in the north-central portion of the Ray Roberts Lake area." The purpose of the study was to offset future disturbances and damages to these farmsteads, and it includes "archival investigations, architectural documentation, oral-history interviews of long-time area residents and family members, farm equipment and artifact analyses, archaeological excavations, stabilization measures, and the development of interpretative exhibits for area schools, museums, and the general public" (p. i).
Date:
1996
Creator:
University of North Texas. Institute of Applied Sciences.
Object Type:
Book
System:
The UNT Digital Library
Appendix B: Texas General Land Office Archives: Data on Selected Land Surveys Related to Settlement of Johnson Park and Vicinity
The information in this appendix was abstracted from the original land record files. This study represents the findings of research done on the Jones and Johnson farms, "situated in Johnson Branch Park in the north-central portion of the Ray Roberts Lake area." The purpose of the study was to offset future disturbances and damages to these farmsteads, and it includes "archival investigations, architectural documentation, oral-history interviews of long-time area residents and family members, farm equipment and artifact analyses, archaeological excavations, stabilization measures, and the development of interpretative exhibits for area schools, museums, and the general public" (p. i).
Date:
1996
Creator:
University of North Texas. Institute of Applied Sciences.
Object Type:
Book
System:
The UNT Digital Library
Appendix C: Land Acquisition and Conveyance Transactions Among the Jones, Everly, and Johnson Families
This appendix presents data relating to the acquisition, ownership and transfer of land by the Jones, Everly, Johnson, and related families. This study represents the findings of research done on the Jones and Johnson farms, "situated in Johnson Branch Park in the north-central portion of the Ray Roberts Lake area." The purpose of the study was to offset future disturbances and damages to these farmsteads, and it includes "archival investigations, architectural documentation, oral-history interviews of long-time area residents and family members, farm equipment and artifact analyses, archaeological excavations, stabilization measures, and the development of interpretative exhibits for area schools, museums, and the general public" (p. i).
Date:
1996
Creator:
University of North Texas. Institute of Applied Sciences.
Object Type:
Book
System:
The UNT Digital Library
Appendix D: Genealogical Data for the Jones, Everly, and Johnson Families
This appendix provides genealogical data for the direct descendants of Pollie Jones-Jones-Burden, George Washington Jones and Easter Ann Montgomery, and John Johnson and Susan Self. This study represents the findings of research done on the Jones and Johnson farms, "situated in Johnson Branch Park in the north-central portion of the Ray Roberts Lake area." The purpose of the study was to offset future disturbances and damages to these farmsteads, and it includes "archival investigations, architectural documentation, oral-history interviews of long-time area residents and family members, farm equipment and artifact analyses, archaeological excavations, stabilization measures, and the development of interpretative exhibits for area schools, museums, and the general public" (p. i).
Date:
1996
Creator:
University of North Texas. Institute of Applied Sciences.
Object Type:
Book
System:
The UNT Digital Library
Appendix E: Population Census for Jones, Everly, Johnson, and Related Families Residing in the Project Area and Vicinity
This appendix provides population census data for the Jones, Johnson, Everly, and related families in the project area. This study represents the findings of research done on the Jones and Johnson farms, "situated in Johnson Branch Park in the north-central portion of the Ray Roberts Lake area." The purpose of the study was to offset future disturbances and damages to these farmsteads, and it includes "archival investigations, architectural documentation, oral-history interviews of long-time area residents and family members, farm equipment and artifact analyses, archaeological excavations, stabilization measures, and the development of interpretative exhibits for area schools, museums, and the general public" (p. i).
Date:
1996
Creator:
University of North Texas. Institute of Applied Sciences.
Object Type:
Book
System:
The UNT Digital Library
Appendix F: Tax Roll Data for the Jones, Everly, Johnson, and Related Families in the Project Area or Vicinity Between 1850 and 1910
This appendix provides data on the real estate and personal property owned by a selected group of families or individuals in the Ray Roberts Lake project area. This study represents the findings of research done on the Jones and Johnson farms, "situated in Johnson Branch Park in the north-central portion of the Ray Roberts Lake area." The purpose of the study was to offset future disturbances and damages to these farmsteads, and it includes "archival investigations, architectural documentation, oral-history interviews of long-time area residents and family members, farm equipment and artifact analyses, archaeological excavations, stabilization measures, and the development of interpretative exhibits for area schools, museums, and the general public" (p. i).
Date:
1996
Creator:
University of North Texas. Institute of Applied Sciences.
Object Type:
Book
System:
The UNT Digital Library
ST JOHN'S Cemetery: A report detailing how Denton County Commissioner Hub Clark stole a cemetery from a Pilot Point freedpersons community in 1938.
This report was submitted to the Denton County Commissioner’s Court on December 12, 2023. The independent research contained herein was inspired by a collaborative community effort to highlight the emerging historical narrative of the St. John's freed-persons community of Pilot Point, its unexplained disappearance in the 1930s, and the events that led to the community's cemetery becoming landlocked and inaccessible to the public for more than eighty years.
Date:
December 12, 2023
Creator:
Luther Rummel, Jessica
Object Type:
Report
System:
The UNT Digital Library