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Electrical and Thermal Conductivity of Polylactic Acid (PLA)-Based Biocomposites by Incorporation of Nano-Graphite Fabricated with Fused Deposition Modeling (open access)

Electrical and Thermal Conductivity of Polylactic Acid (PLA)-Based Biocomposites by Incorporation of Nano-Graphite Fabricated with Fused Deposition Modeling

This article aims to improve the electrical and thermal conductivity of the polylactic acid/wood flour/ thermoplastic polyurethane composites by Fused Deposition Modeling (FDM).
Date: March 22, 2019
Creator: Guo, Rui; Ren, Zechun; Bi, Hongjie; Xu, Min & Cai, Liping
Object Type: Article
System: The UNT Digital Library
Failure analysis of an elbow tube fitting (open access)

Failure analysis of an elbow tube fitting

This article discusses elbow tube fitting. Abstract: Safe operation of machinery depends strongly on the design of the system and the employement of proper components and materials. Unique to fluid powered systems are the proper selection of hydraulic lines, fittings, and control valves. This paper describes the cause of fracture in an elbow tube fittings due to deficiencies in the dimensional design and materials selection. The investigation included metallography, fractography, hardness testing and metrology. The results showed that the material was low carbon steel subjected to cold forming and normalized annealing processes during tube production. There were dimensional variations in the tube and the material strength was low.
Date: August 24, 2002
Creator: Mirshams, Reza A. & Sabbaghian, Mehdy
Object Type: Article
System: The UNT Digital Library
Mechanism for etching of exfoliated graphene on substrates by low-energy electron irradiation from helium plasma electron sources (open access)

Mechanism for etching of exfoliated graphene on substrates by low-energy electron irradiation from helium plasma electron sources

Article investigating the mechanism for etching of exfoliated graphene multilayers on SiO₂ by low-energy (50 eV) electron irradiation using He plasma systems for electron sources.
Date: November 8, 2018
Creator: Femi-Oyetoro, John D.; Yao, Kevin; Tang, Runtian; Ecton, Philip A.; Roccapriore, Kevin M.; Mhlanga, Ashley et al.
Object Type: Article
System: The UNT Digital Library
AC 2007-1844: An Innovative Mechanical and Energy Engineering Curriculum (open access)

AC 2007-1844: An Innovative Mechanical and Energy Engineering Curriculum

This paper discusses the addition of a new Department of Mechanical and Energy Engineering at the University of North Texas (UNT). Those involved see the curriculum for this new program as a new model of engineering education that parallels the innovations of UNTs current Learning to Learn (L2L) project-oriented concept course with the addition of innovative approaches for mechanical engineering and emphasis on energy engineering education.
Date: 2007
Creator: Michaelides, Efstathios & Mirshams, Reza
Object Type: Paper
System: The UNT Digital Library

Critical Success Factors in Business Research and Development Practices

Poster presentation for the 2008 University Scholars Day at the University of North Texas discussing research on critical success factors in business research and development practices.
Date: April 3, 2008
Creator: McKeethen, Eric & Eve, Susan Brown
Object Type: Poster
System: The UNT Digital Library
Templated Growth of Hexagonal Nickel Carbide Nanocrystals on Vertically Aligned Carbon Nanotubes (open access)

Templated Growth of Hexagonal Nickel Carbide Nanocrystals on Vertically Aligned Carbon Nanotubes

Article discussing the templated growth of hexagonal nickel carbon nanocrystals on vertically aligned carbon nanotubes.
Date: May 18, 2010
Creator: Hwang, Jun Y.; Singh, Antariksh; Chaudhari, Mrunalkumar; Tiley, Jaimie S.; Zhu, Y. T. (Yuntian T.), 1963-; Du, Jincheng et al.
Object Type: Article
System: The UNT Digital Library

Study of Thermal Properties of Irradiation-induced Stainless Steels Used in the Development of Nuclear Reactors

Poster for the 2011 University Scholars Day at the University of North Texas discussing a study of thermal properties of irradiation-induced stainless steels used in the development of nuclear reactors.
Date: April 14, 2011
Creator: Londono, Mauricio & Choi, Tae-Youl
Object Type: Poster
System: The UNT Digital Library
A High-Precision Micropipette Sensor for Cellular-Level Real-Time Thermal Characterization (open access)

A High-Precision Micropipette Sensor for Cellular-Level Real-Time Thermal Characterization

This article reports the development of a novel glass micropipette thermal sensor fabricated in a cost-effective manner.
Date: September 13, 2011
Creator: Shrestha, Ramesh; Choi, Tae-Youl; Chang, Wonseok & Kim, Donsik
Object Type: Article
System: The UNT Digital Library

Electrowetting Solar Cell

This paper discusses the electrowetting solar cell. In comparison with traditional silicon-based PV solar cells, the electrowetting-based self-tracking technology will generate ~70% more green energy with a 50% cost reduction.
Date: April 19, 2012
Creator: Reilly, David & Cheng, Jiangtao
Object Type: Paper
System: The UNT Digital Library

The Process of Harvesting Lightning as Electrical Energy

Poster presentation for the 2012 University Scholars Day at the University of North Texas discussing research on the process of harvesting lightning as electrical energy.
Date: April 19, 2012
Creator: Andrae, Skylar & Eve, Susan Brown
Object Type: Poster
System: The UNT Digital Library

Transitioning Coal-fired Power Plants into Combined Solar and Wind Energy Power Plants

Poster presentation for the 2012 University Scholars Day at the University of North Texas discussing research on transitioning coal-fired power plants into combined solar and wind energy power plants.
Date: April 19, 2012
Creator: Brown, Megan & Verrill, Diane
Object Type: Poster
System: The UNT Digital Library
Modeling analysis of the impact of anthropogenic emission sources on ozone concentration over selected urban areas in Texas (open access)

Modeling analysis of the impact of anthropogenic emission sources on ozone concentration over selected urban areas in Texas

This article discusses a regional photochemical modeling experiment set up to simulate a high ozone episode of September 11-14, 2002 to evaluate the impact of various anthropogenic emissions sources on ozone concentrations.
Date: September 9, 2012
Creator: Farooqui, Zuber M.; John, Kuruvilla; Biswas, Jhumoor & Sule, Neelesh
Object Type: Article
System: The UNT Digital Library
Sources Affecting PM₂̣ ₅ Concentrations at a Rural Semi-Arid Coastal Site in South Texas (open access)

Sources Affecting PM₂̣ ₅ Concentrations at a Rural Semi-Arid Coastal Site in South Texas

This article employs an advanced factor analysis technique with principal component analysis/absolute principal component scores and positive matrix factorization to apportion the sources influencing the PM₂̣ ₅ levels measured during 2003 through 2005 at a rural coastal site located within the Corpus Christi urban airshed in South Texas.
Date: November 22, 2012
Creator: Karnae, Saritha & John, Kuruvilla
Object Type: Article
System: The UNT Digital Library
Energy Conversion During Expansion of a Solid-Particle-Entrained Gas (open access)

Energy Conversion During Expansion of a Solid-Particle-Entrained Gas

This article describes pneumatic energy being converted into solid particle kinetic energy as a solid-particle-entrained gas that flows downward through a vertical nozzle. For the conditions studied, the solid particles serve as a heat exchange medium to enable a gas expansion that is nearly isothermal. Also, the kinetic energy associated with the two-phase fluid is predominantly that associated with subsonic solid-particle motion. The kinetic energy of the solid particles is converted into other forms using a low-speed turbine. A theoretical description of the process is presented, and the initiation of an experimental effort to study the process is described.
Date: January 10, 2013
Creator: Ordonez, Carlos A.; Weathers, Duncan L. & Traum, Matthew J.
Object Type: Article
System: The UNT Digital Library
Evaluation of Anthropogenic Air Emissions from Marine Engines in a Coastal Urban Airshed of Texas (open access)

Evaluation of Anthropogenic Air Emissions from Marine Engines in a Coastal Urban Airshed of Texas

This article provides a brief description of the adopted methodology for estimating anthropogenic emission estimation of ocean going vessels and barges.
Date: April 2, 2013
Creator: Farooqui, Zuber M.; John, Kuruvilla & Sule, Neelesh
Object Type: Article
System: The UNT Digital Library
Influence of Bath Composition at Acidic pH on Electrodeposition of Nickel-Layered Silicate Nanocomposites for Corrosion Protection (open access)

Influence of Bath Composition at Acidic pH on Electrodeposition of Nickel-Layered Silicate Nanocomposites for Corrosion Protection

This article describes how nickel-layered silicate nanocomposite films were electrochemically deposited using pulsed potentiostatic conditions from an acidic plating bath containing exfoliated layered silicate to enhance adhesion to the substrate, corrosion resistance, and mechanical properties.
Date: September 25, 2013
Creator: Tientong, Jeerapan; Thurber, Casey; D'Souza, Nandika; Mohamed, Adel M. A. & Golden, Teresa
Object Type: Article
System: The UNT Digital Library
Multifunctional Micropipette Biological Sensor (open access)

Multifunctional Micropipette Biological Sensor

Patent relating to a multifunctional micropipette biological sensor.
Date: May 7, 2010
Creator: Choi, Tae-Youl
Object Type: Patent
System: The UNT Digital Library

Impacts of Fracking on Local Ozone Pollution in DFW Area

Poster for the 2014 University of North Texas (UNT) Graduate Exhibition. This poster discusses the impacts of fracking on local ozone pollution in the Dallas-Fort Worth area.
Date: 2014
Creator: Ahmadi, Mahdi & John, Kuruvilla
Object Type: Poster
System: The UNT Digital Library
Review of biomechanical studies of arteries and their effect on stent performance (open access)

Review of biomechanical studies of arteries and their effect on stent performance

This article aims to summarize part of the available literature that reports studies on biomechanical environment in healthy and diseased arteries using various analytical methods.
Date: April 26, 2014
Creator: Fortier, Aleksandra; Gullapalli, Vikranth & Mirshams, Reza A.
Object Type: Article
System: The UNT Digital Library

Impact of Natural Gas Hydraulic Fracturing on Ozone Pollution in Dallas-Fort Worth Area

Poster for the 2015 Global Emission Initiative (GEIA) Conference. This poster discusses the impact of natural gas hydraulic fracturing on ozone pollution in the Dallas-Fort Worth area.
Date: June 10, 2014
Creator: Ahmadi, Mahdi & John, Kuruvilla
Object Type: Poster
System: The UNT Digital Library
Effect of Impregnated Inorganic Nanoparticles on the Properties of the Kenaf Bast Fibers (open access)

Effect of Impregnated Inorganic Nanoparticles on the Properties of the Kenaf Bast Fibers

This article evaluates the properties of the chemically retted kenaf bast fiber impregnated with the inorganic nanoparticles.
Date: August 22, 2014
Creator: Liang, Kaiwen; Shi, Sheldon Q. & Wang, Ge
Object Type: Article
System: The UNT Digital Library

An Evaluation of the Correlation Between Shale Gas Development and Ozone Pollution within the Barnett Shale Region

Presentation for the 2014 Fracturing Impacts and Technologies Conference. This presentation discusses an evaluation of the correlation between shale gas development and ozone pollution within the Barnett Shale region.
Date: September 4, 2014
Creator: Ahmadi, Mahdi & John, Kuruvilla
Object Type: Presentation
System: The UNT Digital Library
Effect of surfactants on pressure-sensitivity of carbon nanotube filled cement mortar composites (open access)

Effect of surfactants on pressure-sensitivity of carbon nanotube filled cement mortar composites

In this article, the pressure-sensitivity of CNT filled cement mortar composites with different concentrations of MWNT and different surfactants is investigated under repeated loading and impulsive loading, respectively. Experimental results indicate that the response of the electrical resistance of composites with NaDDBS to external force is more stable and sensitive than that of composites with SDS. Therefore, NaDDBS has higher efficiency than SDS for the dispersion of MWNT in cement mortar, and it is an effective surfactant for fabricating MWNT filled cement mortar composites with superior pressure-sensitivity.
Date: November 6, 2014
Creator: Han, Baoguo & Yu, Xun
Object Type: Article
System: The UNT Digital Library

Ozone Impact of Shale Gas Activities in Dallas-Fort Worth Metroplex

Poster for the 2015 Graduate Student Symposium of the Federation of North Texas Area Universities. This poster discusses the ozone impact of shale gas activities in the Dallas-Fort Worth metroplex.
Date: 2015
Creator: Ahmadi, Mahdi & John, Kuruvilla
Object Type: Poster
System: The UNT Digital Library