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open access

Algorithmically Optimized Hemispherical Dome as a Secondary Optical Element for the Fresnel Lens Solar Concentrator

Description: This article focuses on a way to maximize the concentration acceptance product (CAP), while using the minimum SOE and receiver geometry at a given f-number and incidence angle (also referred to as the tracking error angle). The laws of polychromatic light refraction along with trigonometry and spherical geometry were utilized to optimize the POE grooves, SOE radius, receiver size, and SOE–receiver spacing.
Date: July 8, 2019
Creator: Qandil, Hassan; Wang, Shuping & Zhao, Weihuan
Partner: UNT College of Engineering
open access

A Bio-Hygromorph Fabricated with Fish Swim Bladder Hydrogel and Wood Flour-Filled Polylactic Acid Scaffold by 3D Printing

Description: Describes a study where researchers constructed a bio-hygromorph using fish swim bladder hydrogel as the hydrophilic material and wood flour-filled polylactic acid (WPLA) scaffold, which was printed with fused deposition modeling (FDM) 3D printing technology (3DP).
Date: September 7, 2019
Creator: Li, Peng; Pan, Ling; Liu, Dexi; Tao, Yubo & Shi, Sheldon
Partner: UNT College of Engineering
open access

Computational Fluid Dynamics, potential flow and system-based simulations of fully appended free running 5415M in calm water and waves

Description: Article assesses the capabilities of computational fluid dynamics (CFD), potential flow (PF), and system-based (SB) methods for course keeping in calm water and regular and bi-chromatic waves for 5415M as a benchmark test case for AVT-161.
Date: December 27, 2018
Creator: Toxopeus, Serge; Sadat Hosseini, Seyed Hamid; Visonneau, Michel; Guilmineau, Emmanuel; Yen, Tin-Guen; Lin, Woei-Min et al.
Partner: UNT College of Engineering
open access

Direct Electrochemical Detection of Glutamate, Acetylcholine, Choline, and Adenosine Using Non-Enzymatic Electrodes

Description: This article aims to give a summary of the state of the art of non-enzymatic electrochemical sensors used for detection of neurotransmitter that lack an electrochemically active component.
Date: January 22, 2019
Creator: Shadlaghani, Arash; Farzaneh, Mahsa; Kinser, Dacen & Reid, Russell C.
Partner: UNT College of Engineering
open access

Durable, High Conductivity, Superhydrophobicity Bamboo Timber Surface for Nanoimprint Stamps

Description: This article discusses the fabrication of superhydrophobic bamboo timber by magnetron sputtering and nanoimprint stamps. It was expected that this work could promote the applications of superhydrophobic and conductive bamboo products.
Date: December 6, 2017
Creator: Bao, Wenhui; Liang, Daxin; Zhang, Ming; Jiao, Yue; Wang, Lijuan; Cai, Liping et al.
Partner: UNT College of Engineering
open access

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

Description: 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, … more
Date: November 6, 2014
Creator: Han, Baoguo & Yu, Xun
Partner: UNT College of Engineering
open access

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

Description: This article describes a study to improve the electrical and thermal conductivity of the polylactic acid/wood flour/thermoplastic polyurethane composites by Fused Deposition Modeling (FDM). The results showed that, when the addition amount of nano-graphite reached 25 pbw, the volume resistivity of the composites decreased to 10⁸ Ω·m, which was a significant reduction, indicating that the conductive network was already formed. It also had good thermal conductivity, mechanical properties, and the… more
Date: March 22, 2019
Creator: Guo, Rui; Ren, Zechun; Bi, Hongjie; Xu, Min & Cai, Liping
Partner: UNT College of Engineering
open access

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

Description: 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 oth… more
Date: January 10, 2013
Creator: Ordonez, Carlos A.; Weathers, Duncan L. & Traum, Matthew J.
Partner: University of North Texas

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

Description: 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
Partner: UNT College of Arts and Sciences
open access

Evaluation of Uniformity of Bamboo Bundle Veneer and Bamboo Bundle Laminated Veneer Lumber (BLVL)

Description: In this article the density uniformity and mechanical properties of bamboo bundle veneers were systematically evaluated by the combination of light transmittance and mechanical stiffness. It was found that the number of broomings, dippings, and high-temperature heat treatments had different effects on the bamboo bundle veneers. On this basis, the uniformity of the density and mechanical properties of the bamboo scrimber (BS) that underwent hybrid paving, and the bamboo bundle laminated veneer l… more
Date: October 19, 2019
Creator: Zhou, Haiying; Wei, Xin; Smith, Lee M.; Wang, Ge & Chen, Fuming
Partner: UNT College of Engineering
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