Laser printed amorphous magnesium alloy: Microstructure, mechanical properties, and degradation behavior (open access)

Laser printed amorphous magnesium alloy: Microstructure, mechanical properties, and degradation behavior

Article describes how, amorphous magnesium alloy, especially Mg-Zn-Ca series, has been receiving continuous attention in biomedical field, because of its favorable corrosion resistance, suitable modulus and biocompatibility. In this work, laser powder bed fusing with unique characteristics of rapid solidification and layer-by-layer fashion was used to fabricate bulk Mg-Zn-Ca and Mg-Zn-Ca-Y amorphous parts.
Date: November 23, 2023
Creator: Chen, Cheng; Li, Shaoyu; Ling, Chenrong; Yang, Youwen; Gao, Chengde; Li, Yageng et al.
Object Type: Article
System: The UNT Digital Library
Properties of Hyper-Elastic-Graded Triply Periodic Minimal Surfaces (open access)

Properties of Hyper-Elastic-Graded Triply Periodic Minimal Surfaces

Article describes how the mechanical behaviors of three distinct lattice structures-Diamond, Gyroid, and Schwarz-synthesized through vat polymerization were meticulously analyzed. This study aimed to elucidate the intricacies of these structures in terms of their stress-strain responses.
Date: November 21, 2023
Creator: Haney, Christopher W. & Siller Carrillo, Héctor Rafael
Object Type: Article
System: The UNT Digital Library
The Interface Strengthening of Multi-Walled Carbon Nanotubes/Polylactic Acid Composites via the In-Loop Hybrid Manufacturing Method (open access)

The Interface Strengthening of Multi-Walled Carbon Nanotubes/Polylactic Acid Composites via the In-Loop Hybrid Manufacturing Method

Article describes how in this study, a new in-loop hybrid manufacturing method is proposed for fabricating multi-walled carbon nanotube (MWCNTs)/polylactic acid (PLA) composites. Molecular dynamics simulations were conducted in conjunction with experiments to reveal the mechanism of the proposed method for improving the interfacial performance of MWCNTs/PLA.
Date: November 16, 2023
Creator: Li, Hongbin; Jiang, Zhuang; Li, Zhihua; Peng, Yubao; Zhang, Qiushuang & Xiao, Xinyi
Object Type: Article
System: The UNT Digital Library
Investigation on drying kinetics analysis of gooseberry slices dried under open sun (open access)

Investigation on drying kinetics analysis of gooseberry slices dried under open sun

Article describes an experimental analysis of the drying behavior of gooseberry slices dried in the open sun. The authors used the hot air dryer method, and found that the moisture content of gooseberry slices in their initial condition was estimated to be 87.81% wet-basis.
Date: October 20, 2023
Creator: Patel, Vijay; Judal, K. B.; Panchal, Hitesh; Singh, Bharat; Jomde, Amit; Kumar, Abhinav et al.
Object Type: Article
System: The UNT Digital Library
Polypropylene-Based Polymer Locking Ligation System Manufacturing by the Ultrasonic Micromolding Process (open access)

Polypropylene-Based Polymer Locking Ligation System Manufacturing by the Ultrasonic Micromolding Process

Article describes how in recent years, there has been a growing demand for biocompatible medical devices on the microscale. The authors of the article extensively investigated various processing parameters such as vibration amplitude, temperature, and injection velocity.
Date: July 15, 2023
Creator: Elías-Grajeda, Alex; Vázquez-Lepe, Elisa; Siller Carrillo, Héctor Rafael; Perales-Martínez, Imperio Anel; Resédiz-Hernández, Emiliano; Ramírez-Herrera, Claudio Angélica et al.
Object Type: Article
System: The UNT Digital Library
High-Fidelity Conjugate Heat Transfer Simulation of Micro-Channel Heat Exchanger (open access)

High-Fidelity Conjugate Heat Transfer Simulation of Micro-Channel Heat Exchanger

Article describes how high-fidelity conjugate heat transfer simulations are used to model a micro-channel heat exchanger (MCHE) in a crossflow to study its thermal-hydraulic performance. Three different microchannel geometries, namely circular, triangular, and square with louver-shaped fins, are considered.
Date: July 1, 2023
Creator: Ahmed, Hossain; Sadat, Hamid & Nasrazadani, Seifollah
Object Type: Article
System: The UNT Digital Library
Numerical Analysis of Cambered Plate Configurations under Low Reynolds Numbers and at a Low-Density Condition (open access)

Numerical Analysis of Cambered Plate Configurations under Low Reynolds Numbers and at a Low-Density Condition

Article discusses how, after one year of operation, the Ingenuity rotorcraft and the Perseverance rover continue their exploration missions on Mars. Succeeding the technology demonstration phase, by proving its flight capabilities, Ingenuity transitioned to a new mission stage to explore modes of flight exploration for future scouting missions. The author's research intends to analyze, using numerical simulations, the aerodynamic conditions such as those experienced by Ingenuity during its flight missions.
Date: June 27, 2023
Creator: Saez, Aleandro; Manzo, Maurizio & Ciarcià, Marco
Object Type: Article
System: The UNT Digital Library
Comparison of Thermal Effectiveness and Crevice Corrosion Risk of Fin Geometry on All-Aluminum Microchannel Heat Exchangers (open access)

Comparison of Thermal Effectiveness and Crevice Corrosion Risk of Fin Geometry on All-Aluminum Microchannel Heat Exchangers

Article all-aluminum microchannel heat exchangers have recently gained popularity in the heating, ventilation, and air conditioning industry. Despite their attractive thermal performance design, these heat exchangers make coils used in automotive, commercial, and residential applications prone to crevice corrosion. This study uses high-fidelity conjugate heat transfer simulations to model a micro channel heat exchanger system that includes fins and tubes with crossflow to compare their thermal effectiveness to gain insight into potential crevice corrosion of the MCHE alloy.
Date: June 12, 2023
Creator: Ahmed, Hossain; Nasrazadani, Seifollah & Sadat, Hamid
Object Type: Article
System: The UNT Digital Library
Thermal heat transfer and energy modeling through incorporation of phase change materials (PCMs) into polyurethane foam (open access)

Thermal heat transfer and energy modeling through incorporation of phase change materials (PCMs) into polyurethane foam

Article describes how decreasing HVAC energy consumption through insulation effectiveness enables low energy use, low carbon emissions, and high thermal comfort in sustainable buildings. In this paper, two PCMs with transition temperature above and below the outdoor temperature incorporated in highly porous flexible polyurethane foam were evaluated using a one-dimensional (1D) foam core panel built in COMSOL Multiphysics®.
Date: June 3, 2023
Creator: Nandy, Aditi; Houl, Yassine; Zhao, Weihuan & D'Souza, Nandika Anne, 1967-
Object Type: Article
System: The UNT Digital Library
Fiberboard Made from Scrap Denim: Characterization of its Properties by Effective Bulk Modulus Elastography (open access)

Fiberboard Made from Scrap Denim: Characterization of its Properties by Effective Bulk Modulus Elastography

Article describes how fiberboards from scrap denim were fabricated using two different resins, melamine urea formaldehyde (MUF) and polymeric methylene diphenyl diisocyanate (pMDI). Resin content and MUF-pMDI weight ratio were studied. Physical and mechanical tests determined the modulus of elasticity (MOE), modulus of rupture (MOR), internal bond (IB), thickness swell (TS), and water absorption (WA).
Date: March 20, 2023
Creator: Shi, Sheldon; Cui, Zhiying; Jin, Yuqi; Smith, Lee M.; Wu, H. Felix & Neogi, Arup
Object Type: Article
System: The UNT Digital Library
Anthropo-fidelic behavior of elastic-plastic lattice structures (open access)

Anthropo-fidelic behavior of elastic-plastic lattice structures

Article discusses how vat photopolymerization is used to construct triply periodic minimal surfaces (TPMS) to match human heel pad stiffness. This work substantiates the suitability of latticed models to reach the stiffness of the heel pad chambers.
Date: February 24, 2023
Creator: Haney, Christopher W. & Siller Carrillo, Héctor Rafael
Object Type: Article
System: The UNT Digital Library
Preparation of a strong, high prepressing intensity, and multifunction soybean protein adhesive by using hyperbranched functional polymer (open access)

Preparation of a strong, high prepressing intensity, and multifunction soybean protein adhesive by using hyperbranched functional polymer

Article states that the preparation of a soybean protein adhesive with good prepressing intensity, mildew proof, flame retardant, and high bond strength are conducive to the wide application of a soybean protein adhesive, which is important but challenging for the wood-based panel industry. In this study, two hyperbranched functional polymers were designed.
Date: January 9, 2023
Creator: Liu, Zheng; Liu, Tao; Zhang, Jieyu; Li, Yue; Luo, Jing; Li, Jianzhang et al.
Object Type: Article
System: The UNT Digital Library
Novel thin polymeric magnetic membranes study for applications in the future biomedical devices (open access)

Novel thin polymeric magnetic membranes study for applications in the future biomedical devices

Article describes how biomedical devices such as pumping/mixing fluids, cell-culturing, and drug delivery often use different actuation methods. In regard to magnetic actuation, membranes with a local distribution of magnetic particles are investigated and compared to membranes with randomly distributed magnetic particles, which in turn may enhance the actuation performance for certain applications.
Date: November 16, 2022
Creator: Manzo, Maurizio & Bakaraju, Megha
Object Type: Article
System: The UNT Digital Library
Special Issue “Laser Powder Bed Fusion, Direct Energy Deposition and Hybrid Manufacturing of Metals and Alloys” (open access)

Special Issue “Laser Powder Bed Fusion, Direct Energy Deposition and Hybrid Manufacturing of Metals and Alloys”

Article describes hybrid additive manufacturing processes involve the use of different manufacturing techniques to fabricate net shape or near-net shape parts, with enhanced capabilities of heat dissipation, such as those needed in conformal molding, or requiring internal cooling systems, such as, for example, those seen in turbine blades, and for developing other components demanding free form fabrication methods. The combination of these AM processes with material removal processes, such as machining, is the core of the hybrid additive manufacturing concept, together with the full coupling of these processes in an integrated fashion.
Date: October 8, 2022
Creator: Siller Carrillo, Héctor Rafael
Object Type: Article
System: The UNT Digital Library
Unravelling the Influence of Surface Modification on the Ultimate Performance of Carbon Fiber/Epoxy Composites (open access)

Unravelling the Influence of Surface Modification on the Ultimate Performance of Carbon Fiber/Epoxy Composites

Article asserts that the overall performance of polymer composites depends on not only the intrinsic properties of the polymer matrix and inorganic filler but also the quality of interfacial adhesion. The authors report carbon fiber (CF)/epoxy composites with improved interfacial adhesion by covalent bonding between CFs and the epoxy matrix, which leads to the improved ultimate mechanical properties and enhanced thermal aging performance.
Date: September 28, 2022
Creator: Demchuk, Zoriana; Zhu, Jiadeng; Li, Bingrui; Zhao, Xiao; Islam, Nurul Md.; Bocharova, Vera et al.
Object Type: Article
System: The UNT Digital Library
Biochar aerogel-based electrocatalyst towards efficient oxygen evolution in acidic media (open access)

Biochar aerogel-based electrocatalyst towards efficient oxygen evolution in acidic media

Article argues that traditional acidic oxygen evolution reaction (OER) electrocatalysts are more prone to be oxidized and corroded as results of unstable carrier structures and variable electronic states of active species, so a high-performing biochar aerogel (BA) based electrocatalyst was realistically designed and synthetized via joint utilization of the terrestrial lignin and seaweed polysaccharide as carbon sources. This work puts forward a novel and effective strategy towards the enhancement of the acidic OER process by rational regulations of the BA and the coupling effect in micro-interface.
Date: July 22, 2022
Creator: Hui, Bin; Chen, Hongjiao; Zhou, Chengfeng; Cai, Liping; Zhang, Kewei; Quan, Fengyu et al.
Object Type: Article
System: The UNT Digital Library
Design of high SERS sensitive substrates based on branched Ti nanorods (open access)

Design of high SERS sensitive substrates based on branched Ti nanorods

Article reports a rational design of branched titanium (Ti) nanorods formed by glancing angle physical vapor deposition and their applications as substrates for surface-enhanced Raman scattering (SERS). The authors investigation provides a mechanism to fabricate sensitive SERS sensors of Ti nanorods that are known to be thermally and chemically stable and compatible with silicon-based electronics.
Date: July 8, 2022
Creator: Abayomi M. Yussuf, Nosirudeen; Li, Jianlin; Jung, Yung Joon & Huang, Hanchen
Object Type: Article
System: The UNT Digital Library
Probabilistic Seismic Assessment of CoSPSW Structures Using Fragility Functions (open access)

Probabilistic Seismic Assessment of CoSPSW Structures Using Fragility Functions

This article presents a study on the probabilistic assessment of the seismic performance and vulnerability of corrugated steel plate shear walls (CoSPSWs) using fragility functions.
Date: June 18, 2022
Creator: Tan, Zhilun; Zhao, Quihong; Zhao, Yu & Yu, Cheng
Object Type: Article
System: The UNT Digital Library
Empirical Studies on Effect of Low-Level Laser Treatment on Glioblastoma Multiforme in Combination with Ag-PMMA-PAA Nanoparticles: Paired Red Region Optical-Property Treatment Platform (open access)

Empirical Studies on Effect of Low-Level Laser Treatment on Glioblastoma Multiforme in Combination with Ag-PMMA-PAA Nanoparticles: Paired Red Region Optical-Property Treatment Platform

This article investigates low-level laser therapy for brain tumor treatment. The results provide evidence that the paired optical-driven agents provide a tunable platform that can generate significant U251 cell death increase.
Date: June 13, 2022
Creator: Atluri, Rohini; Korir, Daniel K.; Choi, Tae-Youl & Simmons, Denise Perry
Object Type: Article
System: The UNT Digital Library
A self-powered wireless motion sensor based on a high-surface area reverse electrowetting-on-dielectric energy harvester (open access)

A self-powered wireless motion sensor based on a high-surface area reverse electrowetting-on-dielectric energy harvester

Article presents a motion-sensing device with the capability of harvesting energy from low-frequency motion activities. Based on the high surface area reverse electrowetting-on-dielectric (REWOD) energy harvesting technique, mechanical modulation of the liquid generates an AC signal, which is modeled analytically and implemented in Matlab and COMSOL.
Date: March 8, 2022
Creator: Tasneem, Nishat Tarannum; Biswas, Dipon K.; Adhikari, Pashupati R.; Gunti, Avinash; Patwary, Adnan B.; Reid, Russell C. et al.
Object Type: Article
System: The UNT Digital Library
Infrared radiative switching with thermally and electrically tunable transition metal oxides-based plasmonic grating (open access)

Infrared radiative switching with thermally and electrically tunable transition metal oxides-based plasmonic grating

Article says that plasmonic and phase transition has been blended to gain the infrared radiative switching which is tunable with temperature or voltage supply. This is applied via vanadium dioxide, tungsten trioxide, and molybdenum trioxide as transition metal oxides (TMO), the authors state that the work expands the usage of transition metal oxides in infrared region with larger contrast.
Date: March 6, 2022
Creator: Araki, Ken & Zhang, Richard Z.
Object Type: Article
System: The UNT Digital Library
A dimensional assessment of small features and lattice structures manufactured by laser powder bed fusion (open access)

A dimensional assessment of small features and lattice structures manufactured by laser powder bed fusion

This article presents a detailed investigation on the influence of building orientation and feature dimensions in laser powder bed fusion (L-PBF) parts.
Date: February 28, 2022
Creator: López-García, Carlos; García-López, Erika; Siller Carrillo, Héctor Rafael; Sandoval-Robles, Jesús A. & Rodríguez, Ciro A.
Object Type: Article
System: The UNT Digital Library
Advancing Reverse Electrowetting-on-Dielectric from Planar to Rough Surface Electrodes for High Power Density Energy Harvesting (open access)

Advancing Reverse Electrowetting-on-Dielectric from Planar to Rough Surface Electrodes for High Power Density Energy Harvesting

Article presenting electrical and multiphysics-based modeling approaches of REWOD energy harvester using structured rough surface electrodes. By enhancing the overall available surface area, an increase in the overall capacitance is achieved.
Date: December 15, 2021
Creator: Adhikari, Pashupati R.; Patwary, Adnan B.; Kakaraparty, Karthik; Gunti, Avinash; Reid, Russell C. & Mahbub, Ifana
Object Type: Article
System: The UNT Digital Library
High power density and bias-free reverse electrowetting energy harvesting using surface area enhanced porous electrodes (open access)

High power density and bias-free reverse electrowetting energy harvesting using surface area enhanced porous electrodes

Article presents a novel approach for enhancing power output from a REWOD energy harvester by significantly increasing the total available surface area using perforated silicon wafer electrodes.
Date: November 6, 2021
Creator: Adhikari, Pashupati R.; Reid, Russell C. & Mahbub, Ifana
Object Type: Article
System: The UNT Digital Library