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255 Matching Results
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Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling
Article on the characterization of noise in a flux qubit using macroscopic resonant tunneling between the two lowest lying states of a bistable rf SQUID. Analysis of these results indicates that the dominant source of low energy flux noise in this device is a quantum mechanical environment in thermal equilibrium.
Date:
September 10, 2008
Creator:
Harris, R.; Johnson, M. W.; Han, S.; Berkley, A. J.; Johansson, J.; Bunyk, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Electrochemical and Friction Characteristics of Metallic Glass Composites at the Microstructural Length-scales
This article evaluates the phase-specific electrochemical and friction characteristics of a Zr-based mtallic glass composite, which comprised roughly of 40% by volume crystalline dendrites in an amorphous matrix.
Date:
November 1, 2017
Creator:
Ayyagari, Aditya; Hasannaeimi, Vahid; Singh Arora, Harpreet & Mukherjee, Sundeep
Object Type:
Article
System:
The UNT Digital Library
Friction stir-based additive manufacturing
This article is a review of friction stir additive manufacturing (FSAM) and additive friction stir deposition (AFSD) and provides a systems approach framework and a conceptual process model to guide researchers.
Date:
January 18, 2022
Creator:
Mishra, Rajiv; Haridas, Ravi Sankar & Agrawal, Priyanshi
Object Type:
Article
System:
The UNT Digital Library
A Phosphonic Functionalized Biopolymer for the Sorption of Lanthanum (III) and Application in the Recovery of Rare Earth Elements
Authors of the article state that in the first step of their experiment, the sorption was investigated using La(III) ions before testing for the recovery of rare earth elements (REEs) from pretreated industrial acidic leachate. They infer that phosphonate groups participate in the sorption, and that the most effective sorption is at pH = 4.
Date:
February 3, 2023
Creator:
Hamza, Mohammed F.; Abdellah, Walid M.; Zaki, Doaa I.; Wei, Yuezhou; Althumayri, Khalid; Brostow, Witold, 1934- et al.
Object Type:
Article
System:
The UNT Digital Library
Effect of Thermal Treatment With Water, H₂So₄ and Naoh Aqueous Solution on Color, Cell Wall and Chemical Structure of Poplar Wood
This article describes a study to observe and quantify the changes of color on wood surface and microstructure of cell walls after the thermal treatment with water, dilute acid and alkali, and to describe the changes of chemical structure on wood surface after those pretreatments.
Date:
March 3, 2018
Creator:
Shi, Jiangtao; Lu, Yu; Zhang, Yaoli; Cai, Liping & Shi, Sheldon Q.
Object Type:
Article
System:
The UNT Digital Library
Graphene-covered transition metal halide molecules as efficient and durable electrocatalysts for oxygen reduction and evolution reactions
Author Manuscript version of an article designing a new type of electrocatalysts consisting of transition metal halide molecules covered by graphene sheets. This work provides a theoretical base for rationally designing durable electrocatalysts with excellent catalytic activities.
Date:
September 26, 2019
Creator:
Xia, Zhenhai; Zhang, Detao; Zhang, Jing; Gong, Lele; Zhu, Yonghao & Zhang, Lipeng
Object Type:
Article
System:
The UNT Digital Library
Composites Containing Bamboo With Different Binders
This paper discusses the formation of primary chemical bonds between bamboo surface active groups and the binders.
Date:
March 29, 2018
Creator:
Mukbaniani, Omai; Brostow, Witold, 1934-; Hagg Lobland, Haley E.; Aneli, Jimsher; Tatrishvili, Tamara; Markarashvili, Eliza et al.
Object Type:
Paper
System:
The UNT Digital Library
Effect of pressure quenching on the structures and properties of borosilicate glasses: Insights from molecular dynamics simulations
Article describes how processes including hot compression, cold compression and subsequent annealing on the structures and properties are investigated and compared. They found that applying pressure up to 10 GPa at the glass transition temperature led to permanent densifications and a dramatic increase of elastic moduli by 90%, while thermal annealing reversed the increase and applying pressure at ambient temperature did not increase the modulus.
Date:
August 23, 2022
Creator:
Ren, Mengguo & Du, Jincheng
Object Type:
Article
System:
The UNT Digital Library
Some Issues in Cohesive Surface Modeling
Article provides an overview of issues in cohesive surface formulation that are of interest to the author.
Date:
February 28, 2014
Creator:
Needleman, Alan
Object Type:
Article
System:
The UNT Digital Library
Exceptional increase in the creep life of magnesium rare-earth alloys due to localized bond stiffening
Article describes study in which researchers attribute the 600% increase in creep life in a prototypical Mg–rare earth (RE)–Zn alloy to multiple mechanisms caused by RE–Zn bonding—stabilization of a large volume fraction of strengthening precipitates on slip planes, increase in vacancy diffusion barrier, reduction in activated cross-slip, and enhancement of covalent character and bond strength around Zn solutes along the c-axis of Mg using atomic-scale characterization and first principles calculations.
Date:
December 8, 2017
Creator:
Choudhuri, Deep; Srivilliputhur, Srinivasan; Gibson, Mark A.; Zheng, Yufeng; Jaeger, David L.; Fraser, Hamish L. et al.
Object Type:
Article
System:
The UNT Digital Library
Rapid Synthesis of Nanoporous Conformal Coatings via Plasma-Enhanced Sequential Infiltration of a Polymer Template
This article reports a plasma-enhanced sequential infiltration synthesis (PE SIS) as a new platform toward deposition of nanoporous inorganic films.
Date:
September 5, 2017
Creator:
She, Yunlong; Lee, Jihyung; Diroll, Benjamin T.; Lee, Byeongdu; Aouadi, Samir; Shevchenko, Elena V. et al.
Object Type:
Article
System:
The UNT Digital Library
Methylammonium Lead Tri-Iodide Perovskite Solar Cells with Varying Equimolar Concentrations of Perovskite Precursors
Article conducting a systematic study to tune the equimolar precursor ratio of the organic halide (methylammonium iodide; MAI) and metal halide (lead iodide; PbI2) in a fixed solvent mixture of N,N-dimethylformamide (DMF):dimethylsulfoxide (DMSO).
Date:
December 9, 2021
Creator:
Parashar, Mritunjaya & Kaul, Anupama
Object Type:
Article
System:
The UNT Digital Library
Preparation of Surface-Modified Nanocellulose from Sugarcane Bagasse by Concurrent Oxalic Acid-Catalyzed Reactions
Article presenting research where concurrent oxalic acid-catalyzed reactions, including cellulose hydrolysis and esterification of the hydrolyzed cellulose, were performed to prepare the nanocellulose from sugarcane bagasse.
Date:
September 1, 2020
Creator:
Brostow, Witold, 1934-; Sriruangrungkamol, Arisara; Wongjaiyen, Thipsirin & Chonkaew, Wunpen
Object Type:
Article
System:
The UNT Digital Library
Internally shunted sputtered niobium nitride Josephson junctions with a TaNx barrier for nonlatching logic applications
This article reports on the growth, fabrication, and device characterization of NbN internally shunted Josephson junctions with a TaNx barrier.
Date:
December 28, 2000
Creator:
Kaul, Anupama; Whiteley, Stephen R.; Van Duzer, Theodore; Yu, Lei; Newman, Nathan & Rowell, John M.
Object Type:
Article
System:
The UNT Digital Library
Interrogating vertically oriented carbon nanofibers with nanomanipulation for nanoelectromechanical switching applications
Article demonstrates electrostatic switching in vertically oriented carbon nanofibers synthesized on refractory metallic nitride substrates, where pull-in voltages Vpi ranged from 10 to 40 V. A finite element model was also developed to determine a theoretical Vpi and results were compared to experiment.
Date:
August 31, 2009
Creator:
Kaul, Anupama; Khan, Abdur R.; Bagge, Leif; Megerian, Krikor G.; LeDuc, Henry G. & Epp, Larry
Object Type:
Article
System:
The UNT Digital Library
Light–matter interactions in two-dimensional layered tungsten diselenide for gauging evolution of phonon dynamics
Article exploring phonon dynamics in mechanically exfoliated two-dimensional WSe₂ using temperature-dependent and laser-power-dependent Raman and photoluminescence (PL) spectroscopy. The work reported sheds fundamental insights into the evolution of phonon dynamics in WSe₂ and should help pave the way for designing high-performance electronic, optoelectronic and thermoelectric devices in the future.
Date:
May 12, 2020
Creator:
Bandyopadhyay, Avra S.; Biswas, Chandan & Kaul, Anupama
Object Type:
Article
System:
The UNT Digital Library
In-vitro biomineralization and biocompatibility of friction stir additively manufactured AZ31B magnesium alloy-hydroxyapatite composites
Article presents research where friction stir additive manufacturing technique was employed to fabricate AZ31B magnesium-hydroxyapatite composite. The study aims to evaluate effect of hydroxyapatite (HA, Ca₁₀(PO₄)₆OH₂), a ceramic similar to natural bone, into AZ31B Mg alloy matrix on biomineralization and biocompatibility.
Date:
June 30, 2020
Creator:
Ho, Yee-Hsien; Man, Kun; Joshi, Sameehan; Pantawane, Mangesh V.; Wu, Tso-Chang; Yang, Yong et al.
Object Type:
Article
System:
The UNT Digital Library
Bioactive glass coatings on metallic implants for biomedical applications
Article provides a detailed overview of the benefits and issues of metal alloys when used as biomedical implants and how they are improved by bioactive glass-based coatings for biomedical applications.
Date:
October 5, 2019
Creator:
Oliver, Joy-anne N.; Su, Yingchao; Lu, Xiaonan; Kuo, Po Hsuen; Du, Jincheng & Zhu, Donghui
Object Type:
Article
System:
The UNT Digital Library
Biofunctionalization of metallic implants by calcium phosphate coatings
Article provides a brief summary of state-of-art of surface biofunctionalization on implantable metals by CaP coatings.
Date:
May 20, 2019
Creator:
Su, Yingchao; Cockerill, Irsalan; Zheng, Yufeng; Tang, Liping; Qin, Yi‐Xian & Zhu, Donghui
Object Type:
Article
System:
The UNT Digital Library
Effect of solution condition on hydroxyapatite formation in evaluating bioactivity of B2O3 containing 45S5 bioactive glasses
Article describes study investigating the effects of testing solutions and conditions on hydroxyapatite (HAp) formation as a means of in vitro bioactivity evaluation of B2O3 containing 45S5 bioactive glasses.
Date:
June 5, 2019
Creator:
Lu, Xiaonan; Kolzow, Jessica; Chen, Roberto R. & Du, Jincheng
Object Type:
Article
System:
The UNT Digital Library
Collaborative Research: Combined Tribological and Bactericidal Effect of Bioinjectable Nanodiamonds on Biological Joints
Data management plan for the grant, "Collaborative Research: Combined Tribological and Bactericidal Effect of Bioinjectable Nanodiamonds on Biological Joints."
Date:
2023-06-01/2026-05-31
Creator:
Berman, Diana
Object Type:
Text
System:
The UNT Digital Library
Safer, Strong and Slim, Solid Electrolyte for the Future Battery
Video from the Fall 2018 3 Minute Thesis (3MT®) Final Competition. In this video, Po Hsuen Kuo presents his research methods, findings, and its significance in non-technical language.
Date:
November 17, 2018
Creator:
Kuo, Po Hsuen
Object Type:
Video
System:
The UNT Digital Library
On the evolving nature of c/a ratio in a hexagonal close-packed epsilon martensite phase in transformative high entropy alloys
Article studying c/a ratio and transformation volume change of h.c.p. (hexagonal close packed) epsilon martensite phase in transformative high entropy alloys (HEAs) quantified as functions of alloy chemistry, friction stir processing and tensile deformation. The study reveals that while intrinsic c/a is dependent on alloying elements, c/a of epsilon in transformative HEAs changes with processing and deformation.
Date:
June 18, 2019
Creator:
Sinha, Subhasis; Nene, Saurabh S.; Frank, Michael; Liu, Kaimiao; Agrawal, Priyanka & Mishra, Rajiv
Object Type:
Article
System:
The UNT Digital Library
A novel nano-particle strengthened titanium alloy with exceptional specific strength
This article microstructurally tailors an exceptionally high-strength titanium alloy, Ti-6Al-2Sn-4Zr-6Mo (Ti6246) through friction stir processing (FSP) in order to provide enhanced weight savings and improved fuel efficiency. The specific strength attained in one of the conditions is close to 450 MPa m³/mg, which is about 22% to 85% greater than any commercially available metallic material. This novel nano particle strengthened Ti alloy is a potential replacement for many structural alloys, enabling significant weight reduction opportunities.
Date:
May 7, 2019
Creator:
Dutt, Aniket K.; Gwalani, Bharat; Tungala, Vedavyas; Carl, Matthew; Mishra, Rajiv; Tamirisakandala, Sesh A. et al.
Object Type:
Article
System:
The UNT Digital Library