Predicting Hourly Ozone Pollution in Dallas-Fort Worth Area Using Spatio-Temporal Clustering

Presentation for the 2015 GeoComputation Annual Conference. This presentation discusses predicting hourly ozone pollution in the Dallas-Fort Worth area using spatio-temporal clustering.
Date: May 20, 2015
Creator: Ahmadi, Mahdi; Huang, Yan & John, Kuruvilla
Object Type: Presentation
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
Electrode and electrolyte configurations for low frequency motion energy harvesting based on reverse electrowetting (open access)

Electrode and electrolyte configurations for low frequency motion energy harvesting based on reverse electrowetting

This article explores various combinations of electrolyte concentrations, dielectrics, and dielectric thicknesses to generate maximum output power employing REWOD energy harvester with the objective of implementing a fully self-powered wearable sensor.
Date: March 3, 2021
Creator: Adhikari, Pashupati R.; Tasneem, Nishat Tarannum; Reid, Russell C. & Mahbub, Ifana
Object Type: Article
System: The UNT Digital Library
Pyrolysis molecule of Torreya grandis bark for potential biomedicine (open access)

Pyrolysis molecule of Torreya grandis bark for potential biomedicine

Article describes study where a powder of torreya grandis bark was prepared and analyzed qualitatively and quantitativelyiIn order to explore a new way to utilize said bark.
Date: January 9, 2019
Creator: Chen, Huiling; Yue, Xiaochen; Yang, Jun; Lv, Chunxia; Dong, Shuaiwei; Luo, Xuefeng et al.
Object Type: Article
System: The UNT Digital Library
Resistant energy analysis of self-pulling process during dropwise condensation on superhydrophobic surfaces (open access)

Resistant energy analysis of self-pulling process during dropwise condensation on superhydrophobic surfaces

Article describes an energy-based analysis on the formation and growth of condensate droplets on two-tier superhydrophobic surfaces, which are fabricated by decorating carbon nanotubes (CNTs) onto microscale fluorinated pillars.
Date: December 20, 2018
Creator: Vandadi, Aref; Zhao, Lei & Cheng, Jiangtao
Object Type: Article
System: The UNT Digital Library
Multi-Fold Enhancement in Compressive Properties of Polystyrene Foam Using Pre-delaminated Stearate Functionalized Layer Double Hydroxides (open access)

Multi-Fold Enhancement in Compressive Properties of Polystyrene Foam Using Pre-delaminated Stearate Functionalized Layer Double Hydroxides

Describes study in developing an environmentally benign styrene foam using supercritical CO2.
Date: December 19, 2019
Creator: Ogunsona, Emmanuel O.; Dagnon, Koffi L. & D'Souza, Nandika Anne, 1967-
Object Type: Article
System: The UNT Digital Library
Preparation of functional fiber hybrid enhanced high strength and multifunctional protein based adhesive (open access)

Preparation of functional fiber hybrid enhanced high strength and multifunctional protein based adhesive

Article discusses how protein based adhesive is limited by poor mechanical properties and water resistance. This simple and green preparation method provided a new strategy for the production of high-performance, multifunctional and economically effective SM based adhesive.
Date: October 31, 2022
Creator: Zhou, Ying; Zeng, Guodong; Zhang, Fudong; Tang, Zhijie; Luo, Jing; Li, Kuang et al.
Object Type: Article
System: The UNT Digital Library
Porositization Process of Carbon or Carbonaceous Materials (open access)

Porositization Process of Carbon or Carbonaceous Materials

Patent relating to porositized carbon processed from carbon or carbonaceous materials.
Date: March 14, 2014
Creator: Shi, Sheldon Q. & Xia, Changlei
Object Type: Patent
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

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
Single-Step Photochemical Formation of Near-Infrared-Absorbing Gold Nanomosaic within PNIPAm Microgels: Candidates for Photothermal Drug Delivery (open access)

Single-Step Photochemical Formation of Near-Infrared-Absorbing Gold Nanomosaic within PNIPAm Microgels: Candidates for Photothermal Drug Delivery

Article demonstrating the dynamic potential for tailoring the surface plasmon resonance (SPR), size, and shapes of gold nanoparticles (AuNPs) starting from an Au(I) precursor, chloro(dimethyl sulfide)gold (I) (Au(Me2S)Cl), in lieu of the conventional Au(III) precursor hydrogen tetrachloroaurate (III) hydrate (HAuCl4). This approach presents a one-step method that permits regulation of an Au(I) precursor to form either visible-absorbing gold nanospheres or near-infrared-window (NIRW)-absorbing anisotropic AuNPs.
Date: May 18, 2020
Creator: Marpu, Sreekar; Kamras, Brian; Nasiri, Nooshin Mirza; Elbjeirami, Oussama; Simmons, Denise Perry; Hu, Zhibing et al.
Object Type: Article
System: The UNT Digital Library
Direct Electrochemical Detection of Glutamate, Acetylcholine, Choline, and Adenosine Using Non-Enzymatic Electrodes (open access)

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

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: November 9, 2018
Creator: Shadlaghani, Arash; Farzaneh, Mahsa; Kinser, Dacen & Reid, Russell C.
Object Type: Article
System: The UNT Digital Library
Sodium Hydroxide-Free Soy Protein Isolate-Based Films Crosslinked by Pentaerythritol Glycidyl Ether (open access)

Sodium Hydroxide-Free Soy Protein Isolate-Based Films Crosslinked by Pentaerythritol Glycidyl Ether

This article examines the chemical structures of biodegradable films created out of soy protein isolate (SPI), sodium dodecylbenzenesulfonate (SDBS) and pentaerythritol glycidyl ether (PEGE). The thermal stabilities of the films were also examined by means of the thermo-gravimetric analysis.
Date: October 19, 2018
Creator: Wu, Yingji; Cai, Liping; Wang, Chen; Mei, Changtong & Shi, Sheldon
Object Type: Article
System: The UNT Digital Library
Research on solving differential equations of forest fire monitor based on Runge-Kutta (open access)

Research on solving differential equations of forest fire monitor based on Runge-Kutta

Article describes study analyzing the characteristics of the movement of the gel extinguishing agent micelles by considering the resistance of movement.
Date: August 20, 2020
Creator: Guan, Xuemei & Wei, Yanxiu
Object Type: Article
System: The UNT Digital Library
Algorithmically Optimized Hemispherical Dome as a Secondary Optical Element for the Fresnel Lens Solar Concentrator (open access)

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

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
Object Type: Article
System: The UNT Digital Library
Vibrations Evaluation of Functionally Graded Porous Beams in Thermal Surroundings by Generalized Differential Quadrature Method (open access)

Vibrations Evaluation of Functionally Graded Porous Beams in Thermal Surroundings by Generalized Differential Quadrature Method

Article is a study investigating how to obtain the natural frequency of functionally graded porous beams simply supported on an elastic substrate in thermal surroundings by the theory of third-order shear deformation. This article is part of the special issue titled Dynamic Analysis and Vibration Control of Mechanical Structures Coupled with Rotational Systems.
Date: December 31, 2021
Creator: Khakpour, Mahdi; Bazargan-Lari, Yousef; Zahedinejad, Parham & Kazemzadeh-Parsi, Mohammad-Javad
Object Type: Article
System: The UNT Digital Library

Evaluation of Three Major Emission Sources on DFW Ozone Level Using Photochemical Modeling

Poster for the 2015 University of North Texas (UNT) Graduate Exhibition. This poster discusses the evaluation of three major emission sources on the Dallas-Fort Worth ozone levels using photochemical modeling.
Date: March 7, 2015
Creator: Ahmadi, Mahdi & John, Kuruvilla
Object Type: Poster
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
Durable, High Conductivity, Superhydrophobicity Bamboo Timber Surface for Nanoimprint Stamps (open access)

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

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.
Object Type: Article
System: The UNT Digital Library
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
A Tough and Mildew-Proof Soybean-Based Adhesive Inspired by Mussel and Algae (open access)

A Tough and Mildew-Proof Soybean-Based Adhesive Inspired by Mussel and Algae

Describes the development of a strong mold-resistant adhesive by incorporating soybean meal and blood meal.
Date: March 31, 2020
Creator: Bai, Yue; Liu, Xiaorong; Shi, Sheldon & Li, Jianzhang
Object Type: Article
System: The UNT Digital Library
Lightweight, Anisotropic, Compressible, and Thermally-Insulating Wood Aerogels with Aligned Cellulose Fibers (open access)

Lightweight, Anisotropic, Compressible, and Thermally-Insulating Wood Aerogels with Aligned Cellulose Fibers

Proposes a fabrication method for making a lightweight, anisotropic, and compressible wood aerogel with aligned cellulose fibers by a simple chemical treatment.
Date: January 8, 2020
Creator: Sun, Hao; Bi, Hongjie; Lin, Xin; Cai, Liping & Xu, Min
Object Type: Article
System: The UNT Digital Library
A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch (open access)

A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch

This article highlights the development of a flexible long-chain starch with a hyper-branched structure (HD), and incorporating it with SM and a crosslinking agent to prepare a novel SM adhesive. Results showed that this adhesive exhibited both excellent water resistance and enhanced toughness. The wet bond strength of plywood fabricated using this adhesive was 354.5% higher than that of SM adhesive.
Date: August 14, 2019
Creator: Zhang, Yi; Zhang, Jieyu; Chen, Mingsong; Luo, Jing; Shi, Sheldon; Gao, Qiang et al.
Object Type: Article
System: The UNT Digital Library
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 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 thermal stability.
Date: March 22, 2019
Creator: Guo, Rui; Ren, Zechun; Bi, Hongjie; Xu, Min & Cai, Liping
Object Type: Article
System: The UNT Digital Library