73,086 Matching Results

Search Results

Results: 1 - 24 next
open access

Effect of Cu and Ni Inclusion on Tribological Performance of Tribocatalytically Active Coatings in Hydrocarbon Environments

Description: Article describes how protective coatings are important for enhancing tribological behavior, preventing surface degradation, and reducing friction-induced energy losses during the operation of mechanical systems. The authors study the effect of catalytic metals, specifically their compositions and amount, on the tribocatalysis process.
Date: December 31, 2023
Creator: Sulaimi, Rawan Al; Eskandari, Mohammad; Shirani, Asghar; Macknojia, Ali Zayaan; Miller, Wesley & Berman, Diana
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

Multimodal and multiscale strengthening mechanisms in Al-Ni-Zr-Ti-Mn alloy processed by laser powder bed fusion additive manufacturing

Description: Article describes how the unique thermokinetics of laser-powder bed fusion additive manufacturing has been exploited for development of a novel high strength Al-Ni-Ti-Zr-Mn alloy. The authors say that the addition of 0.5 wt% Mn leads to extraordinary improvement in ultimate tensile strength (502 MPa) and work hardening due to the activation of two Mn-induced strengthening mechanisms
Date: December 29, 2023
Creator: Dhal, Abhijeet; Thapliyal, Saket; Agrawal, Priyanka; Roy, Ankita; Sharma, Aishani; Mishra, R. S. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Light Confinement in Twisted Single-Layer 2D+ Moiré Photonic Crystals and Bilayer Moiré Photonic Crystals

Description: Article reporting optical properties of twisted single-layer 2D+ moiré photonic crystals where there is a weak modulation in z direction, and bilayer moiré-overlapping-moiré photonic crystals. This study leads to a potential application of 2D+ moiré photonic crystal in future on-chip optoelectronic integration.
Date: December 25, 2023
Creator: Kamau, Steve; Hurley, Noah; Kaul, Anupama; Cui, Jingbiao & Lin, Yuankun
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Mesenchymal stem cells aligned and stretched in self-assembling peptide hydrogels

Description: Article describes how the presented research highlights a novel approach using fmoc-protected peptide hydrogels for the encapsulation and stretching of mesenchymal stem cells. This study utilized a custom mechanical stretching device with a PDMS chamber to stretch human mesenchymal stem cells encapsulated in Fmoc hydrogels.
Date: December 19, 2023
Creator: Fouladgar, Farzaneh; Moslabeh, Forough G. Z.; Kasani, Yashesh V.; Rogozinski, Nick; Torres, Marc; Ecker, Melanie et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Influence of Tools and Cutting Strategy on Milling Conditions and Quality of Horizontal Thin-Wall Structures of Titanium Alloy Ti6Al4V

Description: Article describes how titanium and nickel alloys are used in the creation of components exposed to harsh and variable operating conditions. The authors state that a search is underway for cutting parameters that will minimize the vibration while meeting the quality requirements.
Date: December 18, 2023
Creator: Kurpiel, Szymon; Cudok, Bartosz; Zagórski, Krzysztof; Cieślik, Jacek; Skrzypkowski, Krzysztof & Brostow, Witold, 1934-
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

OA usage reporting: Understanding stakeholder needs and advancing trust through shared infrastructure

Description: Article describes how the complexity of usage reporting for open access content continues to grow, particularly with content syndication to organizations such as ScienceDirect and ResearchGate, which deliver content across multiple platforms at an unprecedented scale. This paper brings together four different perspectives and walk through what is known, then start to unpack the questions for which they do not have answers.
Date: December 15, 2023
Creator: Tim, Lloyd; Miller, Tricia; Drummond, Christina & Kemp, Jennifer
Item Type: Refine your search to only Article
Partner: UNT Libraries
open access

Symmetry breaking charge transfer leading to charge separation in a far-red absorbing bisstyryl-BODIPY dimer

Description: Article describes how symmetry breaking charge transfer is one of the important photo-events occurring in photosynthetic reaction centers that is responsible for initiating electron transfer leading to a long-lived charge-separated state and has been successfully employed in light-to-electricity converting optoelectronic devices. In this study, the authors report a newly synthesized, far-red absorbing and emitting BODIPY-dimer to undergo symmetry-breaking charge transfer leading to charge-separ… more
Date: December 15, 2023
Creator: Yahagh, Aida; Kaswan, Ram R.; Kazemi, Shahrzad; Karr, Paul A. & D'Souza, Francis
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

ST JOHN'S Cemetery: A report detailing how Denton County Commissioner Hub Clark stole a cemetery from a Pilot Point freedpersons community in 1938.

Description: 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
Item Type: Refine your search to only Report
Partner: UNT College of Arts and Sciences

[The back of a Mary McFadden dress on display]

Description: Photograph of the back of a Mary McFadden dress from the UNT Texas Fashion Collection's permanent holdings, mounted in the Neiman Marcus Hub in Oaklawn in Dallas. The garment was mounted as part of a cultural partnership between Neiman's and the TFC.
Date: December 11, 2023
Creator: Becker, Annette
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[An Issey Miyake dress on display]

Description: Photograph of an Issey Miyake dress from the UNT Texas Fashion Collection's permanent holdings, mounted in the Neiman Marcus Hub in Oaklawn in Dallas. The garment was mounted as part of a cultural partnership between Neiman's and the TFC.
Date: December 11, 2023
Creator: Becker, Annette
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[A Mary McFadden dress]

Description: Photograph of the back of a Mary McFadden dress from the UNT Texas Fashion Collection's permanent holdings, mounted in the Neiman Marcus Hub in Oaklawn in Dallas. The garment was mounted as part of a cultural partnership between Neiman's and the TFC.
Date: December 11, 2023
Creator: Becker, Annette
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Surface Nanostructures Enhanced Biocompatibility and Osteoinductivity of laser-Additively Manufactured CoCrMo Alloys

Description: Article describes how cobalt–chromium–molybdenum (CoCrMo) alloys are widely used in orthopedic implants due to their excellent corrosion and wear resistance and superior mechanical properties. In this study, the authors prepared CoCrMo alloys with surface nanostructures of various aspect ratios (AR) using laser-directed energy deposition (L-DED) and biocorrosion.
Date: December 6, 2023
Creator: Man, Kun; Mazumder, Sangram; Dahotre, Narendra B. & Yang, Yong
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Teacher-Principal Ethnoracial Matching, Geography, and Novice Teacher Career Outcomes

Description: Article describes how, nationally, many school districts are facing a teacher workforce sustainability crisis, and job retention for novice teachers of color is a key area of focus for educational leaders and policymakers. In this study, the authors draw on nine years of administrative data from Texas K-12 public schools to better understand how teacher-principal ethnoracial matching is associated with patterns of teacher retention and system-exit.
Date: December 5, 2023
Creator: Edwards, Wesley L. & Anderson, Cornelius Q.
Item Type: Refine your search to only Article
Partner: UNT College of Education

Collection Evaluation for Enhancements: Languages and Literatures

Description: Presentation used to report the evaluation of UNT Libraries’ holdings supporting the curriculum and research in the area of languages and literatures. This collection analysis was focused on the four languages which undergraduates and graduate degrees are offered, including literatures and cultures.
Date: December 4, 2023
Creator: Harker, Karen; Byrne, Sephra & Irhamni, Irhamni
Item Type: Refine your search to only Presentation
Partner: UNT Libraries
open access

Acenaphthene and 1,10-Phenanthroline-Fused Βeta-Functionalized Porphyrins

Description: A series of acene-fused porphyrins and 1,10-phenanthroline-fused porphyrins were synthesized and characterized via NMR spectroscopy and mass spectrometry. The acene-fused porphyrins exhibit unique optoelectronic properties, most notably they exhibit highly red-shifted absorption bands. The 1,10-phenanthroline-fused porphyrins are of interest for their ability to bond to as variety of metals to form chelation complexes.
Date: December 2023
Creator: Arvidson, Jacob Randall
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Acute and Sublethal Impacts of Crude Oil Photo-Induced Toxicity in an Early Life Stage Marine Fish (Sciaenops ocellatus) and Invertebrate (Americamysis bahia)

Description: We investigated the modifying effects of ultraviolet (UV) light and chemical dispersant (Corexit 9500A) on crude oil toxicity in juvenile mysids (≤ 24 h) (Americamysis bahia) and larval red drum (24-72 hpf) (Sciaenops ocellatus). These results demonstrate that crude oil toxicity significantly increases with co-exposure to environmentally relevant UV levels in both species, indicating photo-induced toxicity. This toxicity was further exacerbated by the application of chemical dispersants which i… more
This item is restricted from view until January 1, 2025.
Date: December 2023
Creator: Leads, Rachel Renee
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Additive Friction Stir Deposition of Al-Ce Alloys for Improved Strength and Ductility

Description: Additive friction stir deposition (AFSD) is a solid-state additive manufacturing (AM) technique that breaks down large constituent particles into more refined and uniformly disturbed microstructure. AFSD was used to print Al-Ce alloys. Current commercial Al-alloys upon elevated temperatures go through dissolution and coarsening of strengthening precipitates causing mechanical degradation of these alloys. Al-Ce alloys do not have this issue as cerium's low solubility restricts dissolution into t… more
This item is restricted from view until January 1, 2029.
Date: December 2023
Creator: Davis, Devin Fredric
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Analysis of Litigation against North Carolina Educators and School Districts under the North Carolina Tort Claims Act

Description: This dissertation discussed the impact of the North Carolina Tort Claims Act and the history of governmental immunity that has protected school districts and school employees in North Carolina. The research question addressed was: how have North Carolina state courts interpreted the North Carolina Tort Claims Act in litigation against North Carolina school districts and their employees? The North Carolina Tort Claims Act provided citizens with a vehicle to sue local governmental agencies and t… more
Date: December 2023
Creator: Harned, Jason Douglas
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Analysis of Sensory Integration Techniques on Automatically Maintained Problem Behavior

Description: Sensory integration techniques are a common treatment procedure among occupational therapists. The goal is to "apply" input that competes with input from problem behavior. Although this is a commonly recommended intervention, there is limited empirical evaluation with adults with intellectual disabilities. Therefore, we evaluated the effectiveness of occupational therapist-suggested sensory stimuli on the automatically maintained problem behavior of adults. Specifically, we compared the effects… more
Date: December 2023
Creator: Pelletier, Danielle Renee
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Analytical Study of the Suite for Violin and Piano (1935), Op. 6, by Benjamin Britten (1913-1976)

Description: The Suite for Violin and Piano, Op. 6 is one of the least-known compositions by Benjamin Britten. It has been considered unfavorably by critics and scholars due to its puzzling mixture of tonal and post-tonal elements. However, this dissertation argues that the suite is composed with a clear tonal framework, and its unique mixed tonal-post-tonal language justifies an in-depth analysis. This analytical study utilizes a linear progression technique - the voice leading produced by passing tones an… more
Date: December 2023
Creator: Lee, Hanjun
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Analyzing the Joint Effects of Network and Community Attributes on Network Performance: Evidence from Local Continuum of Care Homeless Service Networks

Description: This dissertation examines the factors and combinations of factors that affect the performance of continuum of care homeless service networks, applying the configurational approach of contingency theory to data sets drawn from federal sources. The study accepts the two key assumptions from the theory: (1) that there are multiple paths to high performance and (2) key conditions have a joint influence on network performance. The data analysis in this study has two parts. The first employs OLS reg… more
Date: December 2023
Creator: Kim, Jintak
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Are We Zwisch-ing Yet? An Examination of the Zwischenfach Voice Category and Selected Twenty-First Century American Arias

Description: The German word Zwischenfach often refers to opera roles and singers whose voices lie between the categories of mezzo-soprano and soprano. While the term is not universally accepted as a voice category, Zwischenfach voices and roles are being discussed more openly and with more specificity in collegiate and professional circles. This document includes a discussion on the challenges of categorizing dramatic voices, mezzo-soprano voices, and those who could be considered Zwischenfach, taking into… more
Date: December 2023
Creator: Taylor, Hilary Grace
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Avian Community Response to Riverby Ranch Restoration Reconstruction

Description: Anthropogenic activities have caused many wildlife spices to decline in populations worldwide. The grassland bird communities are especially being impacted by these land use changes. Breeding success is closely tied to functional habitats for most grassland bird species in North Texas. Restoring these degraded habitats is an important component to aid in conserving wildlife biodiversity. We surveyed the bird population at Riverby Ranch Mitigation site by conducting point count sampling. This si… more
Date: December 2023
Creator: Boucher, Tessa Katrish
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
Back to Top of Screen