UNT College of Engineering - 63 Matching Results
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- 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.
- Photo-Magnetic Irradiation-Mediated Multimodal Therapy of Neuroblastoma Cells Using a Cluster of Multifunctional Nanostructures
- This article implements a safer and alternative multimodal therapeutic strategy involving simultaneous optical and oscillating (AC) magnetic field stimulation of a multifunctional nanocarrier system to guide neuroblastoma cell destruction.
- 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.
- 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.
- 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.
- Construction and characterization of superhydrophobic wood coatings using one-step technique
- Article describes how this study was aiming at enhancing the stain resistance and durability of varnish on wood surfaces, a super hydrophobic solution was created by blending the synthetic ZIF-8/paraffin with Hexadecyltrimethoxysilane at a specified mass ratio. This superhydrophobic mixture was then directly applied onto the wood varnish coating using a one-step method.
- 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.
- Soybean Meal-Based Wood Adhesive Enhanced by Phenol Hydroxymethylated Tannin Oligomer for Exterior Use
- This article highlights a study of a bio adhesive was developed from soybean meal and larch tannin that was designed for exterior use. Phenol hydroxymethylated tannin oligomer (PHTO) was synthesized and then mixed with soybean meal flour in order to obtain a soybean meal-based adhesive (SPA). The results showed that the moisture absorption rate, residual rate, and solid content of SPA with 10 wt % PHTO (mass ratio with respect to the entire adhesive) were improved by 22.8%, 11.6%, and 6.8%, respectively, as compared with that of pure SPA.
- Multifunctional Micropipette Biological Sensor
- Patent relating to a multifunctional micropipette biological sensor.
- Combined effects of ZnO particle deposition and heat treatment on dimensional stability and mechanical properties of poplar wood
- This article proposes a one-step wood modification method by combining the deposition of ZnO particles on wood surface and heat treatment.
- 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.
- 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.
- 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.
- 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.
- Technology Development of Glycosyl Resins for Wood Composites
- This article reviews synthesis methods for renewable and eco-friendly glycosyl adhesives.
- 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.
- 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).
- 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.
- Preparation and Characterization of 3D Printed PLA-Based Conductive Composites Using Carbonaceous Fillers by Masterbatch Melting Method
- This article highlights a study aimed at improving the conductivity of polylactic acid (PLA)-based composites by incorporating carbonaceous fillers. The composites with the addition of graphene nanoplatelets (rGO) or multi-walled carbon nanotubes (MWCNTs) were fabricated by the masterbatch melting method in order to improve the dispersion of the two kinds of nano-fillers. The results showed that, with the addition of 9 wt % rGO, the volume electrical resistivity of the composite reached the minimum electrical resistance of 10³ Ω·m, at which point the conductive network in the composites was completely formed.
- 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.
- Molecular characteristics and function of elliptical Kiwifruit
- Article describes study analyzing the chemical components of elliptical kiwifruit (Actinidia chinensis Planch) using Fourier transform infrared spectroscopy (FT-IR) and gas chromatography mass spectrometry (GC–MS) technologies.
- 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).
- Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries
- This review contains the authors' recent progress on the design and fabrication of 3D carbon nanostructures, their performance in Li-ion batteries (LIBs), and their implementation into large-scale, lightweight, and flexible LIBs.
- Competition Between Resonant Plasmonic Coupling and Electrostatic Interaction in Reduced Graphene Oxide Quantum Dots
- This article presents a study of the plasmonic interaction that effects the optical properties of light emission from graphene oxide system.
- 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.
- 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.
- A simple design of mechanically robust, recyclable, and biodegradable composite films with high thermal stability and fluorescent properties
- This article proposes a strategy for preparing advanced soy protein (SP)-based films by solution casting of SP and hydroxyl and primary amine-containing hyperbranched polysiloxane (HPSA). It offers a simple methodology for the design of mechanically robust, recyclable, and biodegradable composite films, which have potential applications in the fabrication of high-performance, high-transparency, and anti-counterfeiting packaging materials.
- A Bio-Hygromorph Fabricated with Fish Swim Bladder Hydrogel and Wood Flour-Filled Polylactic Acid Scaffold by 3D Printing
- 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).
- 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.
- 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.
- 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.
- 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.
- Carbon Capture Utilization for Biopolymer Foam Manufacture: Thermal, Mechanical and Acoustic Performance of PCL/PHBV CO2 Foams
- This article uses PCL to blend into PBHV. Both unfoamed and foamed blends are examined. The results provide a pathway to multifunctional performance in foams of high performance biopolymers such as PBHV through harnessing the CO₂ miscibility of PCL.
- Compostable, fully biobased foams using PLA and micro cellulose for zero energy buildings
- Article examining foams made from polylactic acid (PLA) and micro cellulose fibrils (MCF) to address the need for bio-resourced foams for the building industry.
- 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.
- Application-based design of the Fresnel lens solar concentrator
- Article investigates a novel genetically themed hierarchical algorithm (GTHA) to design Fresnel lens solar concentrators that match with the distinct energy input and spatial geometry of various thermal applications.
- 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.
- 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.
- 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.
- 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.
- 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.
- Effects of Carbonization Temperature and Component Ratio on Electromagnetic Interference Shielding Effectiveness of Woodceramics
- This article explores the effects of carbonization temperature and mass ratio of wood/resin on electromagnetic interference, shielding effectiveness, and morphology of woodceramics.
- Development and Application of Wood Flour-Filled Polylactic Acid Composite Filament for 3D Printing
- This article presents the development of wood flour (WF)-filled polylactic acid (PLA) composite filaments for a fused deposition modeling (FDM) process with the aim of application to 3D printing.
- Computational Fluid Dynamics, potential flow and system-based simulations of fully appended free running 5415M in calm water and waves
- 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.
- 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.
- Reinforcement of Polylactic Acid for Fused Deposition Modeling Process with Nano Particles Treated Bamboo Powder
- This article looks at the tensile properties and dynamic mechanical properties of bamboo powder (BP) reinforced polylactic acid (PLA) composite filaments which were treated with nano calcium carbonate (CaCO3), cellulose nanofibers (CNF), and micro-crystalline cellulose (MCC) using impregnation modification technology.
- 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.
- 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.
- 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.
- Effect of light-delignification on mechanical, hydrophobic, and thermal properties of high-strength molded fiber materials
- This article discusses the development of a high-strength molded fiber material using pulp fibers, which coudl be a good substitute for plastic and solid wood materials.