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

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

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

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

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 lumber (BLVL), were analyzed.
Date: October 19, 2019
Creator: Zhou, Haiying; Wei, Xin; Smith, Lee M.; Wang, Ge & Chen, Fuming
Object Type: Article
System: The UNT Digital Library
Fabrication of densified wood via synergy of chemical pretreatment, hot-pressing and post mechanical fixation (open access)

Fabrication of densified wood via synergy of chemical pretreatment, hot-pressing and post mechanical fixation

Article describes examination of the appearance, color, chemical composition, and physiology and mechanical properties of densified Abies wood before and after densification treatment using a colorimeter, FTIR and mechanical testing machine.
Date: January 30, 2020
Creator: Shi, Jiangtao; Peng, Junyi; Huang, Qiongtao; Cai, Liping & Shi, Sheldon
Object Type: Article
System: The UNT Digital Library
Fabrication of Wood-Rubber Composites Using Rubber Compound as a Bonding Agent Instead of Adhesives (open access)

Fabrication of Wood-Rubber Composites Using Rubber Compound as a Bonding Agent Instead of Adhesives

This article describes fabricating wood-rubber composites using rubber processing to improve water resistance and mechanical properties.
Date: June 14, 2016
Creator: Shao, Dongwei; Xu, Min; Cai, Liping & Shi, Sheldon Q.
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
Feasibility Study of Compaction and Sintering of Commercially Pure Titanium using Friction Stir Processing (open access)

Feasibility Study of Compaction and Sintering of Commercially Pure Titanium using Friction Stir Processing

This article explores the possibility of decreasing the number of steps required in the manufacturing of a product using the powder metallurgy technique.
Date: May 22, 2018
Creator: Fortier, Aleksandra; Kumar, Nilesh; Komarasamy, Mageshwari & Mishra, Rajiv
Object Type: Article
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
Highly Efficient Second Harmonic Generation in Hyperbolic Metamaterial Slot Waveguides With Large Phase Matching Tolerance (open access)

Highly Efficient Second Harmonic Generation in Hyperbolic Metamaterial Slot Waveguides With Large Phase Matching Tolerance

This article links the mature near-infrared devices to the mid-infrared regime and demonstrates great potential for integrated chip-scale all-optical signal processes.
Date: March 2, 2015
Creator: Sun, Yu; Zheng, Zheng; Cheng, Jiangtao; Sun, Guodong & Qiao, Guofu
Object Type: Article
System: The UNT Digital Library
Hybrid Boron Nitride-Natural Fiber Composites for Enhanced Thermal Conductivity (open access)

Hybrid Boron Nitride-Natural Fiber Composites for Enhanced Thermal Conductivity

This article finds that the synergy of natural fiber with hexagonal boron nitride (hBN) could significantly improve thermal conductivity, compared with that solely using hBN.
Date: October 5, 2016
Creator: Xia, Changlei; Garcia, Andres C.; Shi, Sheldon Q.; Qiu, Ying; Warner, Nathaniel; Wu, Yingji et al.
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

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
Improvement of mechanical, humidity resistance and thermal properties of heat-treated rubber wood by impregnation of SiO₂ precursor (open access)

Improvement of mechanical, humidity resistance and thermal properties of heat-treated rubber wood by impregnation of SiO₂ precursor

This article proposes a novel methodology by impregnating SiO₂ precursor solution into the heat-treated wood to improve the mechanical properties.
Date: June 18, 2018
Creator: Zhang, Nannan; Xu, Min & Cai, Liping
Object Type: Article
System: The UNT Digital Library
In Situ Fabrication of a Graphene-Coated Threedimensional Nickel Oxide Anode for High-Capacity Lithium-Ion Batteries (open access)

In Situ Fabrication of a Graphene-Coated Threedimensional Nickel Oxide Anode for High-Capacity Lithium-Ion Batteries

This article discusses the development of an in situ fabrication of a graphene-coated, three-dimensional (3D) NiO-Ni structure by simple chemical vapor deposition (CVD).
Date: October 5, 2017
Creator: Kang, Chiwon; Cha, Eunho; Lee, Sang Hyub & Choi, Wonbong
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
Interfacial Properties of Bamboo Fiber-Reinforced High-Density Polyethylene Composites by Different Methods for Adding Nano Calcium Carbonate (open access)

Interfacial Properties of Bamboo Fiber-Reinforced High-Density Polyethylene Composites by Different Methods for Adding Nano Calcium Carbonate

This article describes a study observing the effect of nano calcium carbonate (CaCO₃) modification methods on bamboo fiber (BF) used in BF-reinforced high-density polyethylene composites manufactured by extrusion molding.
Date: October 11, 2017
Creator: Wang, Cuicui; Xian, Yu; Smith, Lee M.; Wang, Ge; Cheng, Haitao & Zhang, Shuangbao
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
Longitudinal Monostatic Acoustic Effective Bulk Modulus and Effective Density Evaluation of Underground Soil Quality: A Numerical Approach (open access)

Longitudinal Monostatic Acoustic Effective Bulk Modulus and Effective Density Evaluation of Underground Soil Quality: A Numerical Approach

This article introduces a novel method using longitudinal sound to detect underground soil voids to inspect underwater bed property in terms of effective bulk modulus and effective density of the material properties.
Date: December 25, 2020
Creator: Jin, Yuqi; Choi, Tae-Youl & Neogi, Arup
Object Type: Article
System: The UNT Digital Library
Mechanical and Rheological Properties of Bamboo Pulp Fiber Reinforced High Density Polyethylene Composites: Influence of Nano CaCO3 Treatment and Manufacturing Process with Different Pressure Ratings (open access)

Mechanical and Rheological Properties of Bamboo Pulp Fiber Reinforced High Density Polyethylene Composites: Influence of Nano CaCO3 Treatment and Manufacturing Process with Different Pressure Ratings

Article investigating the effect of the relative motion of nano CaCO3 reinforced bamboo pulp fiber (BPF)/HDPE composite components on the mechanical performance.
Date: August 17, 2021
Creator: Wang, Cuicui; Wei, Xin; Smith, Lee M.; Wang, Ge; Zhang, Shuangbao & Cheng, Haitao
Object Type: Article
System: The UNT Digital Library
Mechanical property enhancement of self-bonded natural fiber material via controlling cell wall plasticity and structure (open access)

Mechanical property enhancement of self-bonded natural fiber material via controlling cell wall plasticity and structure

This article explores self-bonded natural fiber material (SNFM) as a promising alternative for plastic and wood owing to its abundant raw material resources and low environmental impact. In this study, a high-performance SNFM was developed by the comprehensive treatments for the plasticity and structure of fiber cell walls. The self-bonded mechanism for natural fiber materials was also discussed. The SNFM products showed excellent mechanical performance, which was superior to that of natural wood and plastic.
Date: March 26, 2019
Creator: Wang, Quanliang; Xiao, Shengling; Shi, Sheldon & Cai, Liping
Object Type: Article
System: The UNT Digital Library
Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites (open access)

Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites

This article studies studies the preparation of a series of heat-induced shape memory composites by the hot-melt extrusion and three-dimensional (3D) printing of thermoplastic polyurethane (TPU) using wood flour (WF) with different contents of EPDM-g-MAH.
Date: October 4, 2018
Creator: Bi, Hongjie; Xu, Min; Ye, Gaoyuan; Guo, Rui; Cai, Liping & Ren, Zechun
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: February 26, 2019
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
Metal Matrix Composite Coatings of Cupronickel Embedded with Nanoplatelets for Improved Corrosion Resistant Properties (open access)

Metal Matrix Composite Coatings of Cupronickel Embedded with Nanoplatelets for Improved Corrosion Resistant Properties

This article studies the effects of nanoplatelet reinforcement on the durability, corrosion resistance, and mechanical properties of copper-nickel coatings.
Date: June 3, 2018
Creator: Thurber, Casey; Ahmad, Yahia H.; Calhoun, Margaret C.; Al-Shenawa, Amaal; D'Souza, Nandika; Mohamed, Adel M. A. et al.
Object Type: Article
System: The UNT Digital Library