Partner
Collection
Degree Department
79 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
79
next
Acoustic Metasurface-Aided Broadband Noise Reduction in Automobile Induced by Tire-Pavement Interaction
Article demonstrating a technique utilizing acoustic metasurfaces (AMSes) with high reflective characteristics using relatively lightweight materials for noise reduction without any change in mechanical strength or weight of the tire. The proposed design can significantly reduce the noise arising from tire–pavement interaction over a broadband of acoustic frequencies under 1000 Hz and over a wide range of vehicle speeds using a negative effective dynamic mass density approach.
Date:
July 30, 2021
Creator:
Heo, Hyeonu; Sofield, Matthew; Ju, Jaehyung & Neogi, Arup
System:
The UNT Digital Library
Advanced modeling of materials with PAOFLOW 2.0: New features and software design
This article describes the recent re-design of the code and the new features and improvements in performance of PAOFLOW, a software tool that constructs tight-binding Hamiltonians from self-consistent electronic wavefunctions by projecting onto a set of atomic orbitals.
Date:
September 2, 2021
Creator:
Cesaroli, Frank T.; Supka, Andrew; Jayaraj, Anooja; Costa, Marcio; Siloi, Ilaria; Sławińska, Jagoda et al.
System:
The UNT Digital Library
The allometric propagation of COVID-19 is explained by human travel
Article develops an allometric model capable of fitting the initial phase of the COVID-19 pandemic and predicting the propagation of the illness for up to 100 days.
Date:
December 18, 2021
Creator:
Tuladhar, Rohisha; Grigolini, Paolo & Santamaria, Fidel
System:
The UNT Digital Library
ALMA Observations of Quasar Host Galaxies at z ≃ 4.8
Article presents ALMA Band 7 data of the [C ıı] 𝜆157.74 𝜇m emission line and underlying far-IR (FIR) continuum for 12 luminous quasars at 𝓏 ≃ 4.8 powered by fast-growing supermassive black holes (SMBHs).
Date:
May 27, 2020
Creator:
Shemmer, Ohad; Nguyen, Nathen H.; Lira, Paulina; Trakhtenbrot, Benny; Netzer, Hagai; Cicone, Claudia et al.
System:
The UNT Digital Library
Analyzing the Bolometric Performance of Vanadium Oxide Thin Films Modified by Carbon Nanotube Dispersions
Article investigates the influence of carbon nanotube (CNT) dispersions on the electrical properties and noise signal amplitude of 𝑉𝑂𝑥 films. The results presented in this work provide a better understanding of 𝑉𝑂𝑥-based composites, thereby enabling the development of new, versatile and functional materials for device applications.
Date:
February 12, 2023
Creator:
Philipose, Usha; Littler, Chris; Jiang, Yan; Naciri, Alia; Harcrow, Michael & Syllaios, A. J.
System:
The UNT Digital Library
Anisotropic Optical Properties of 2D Silicon Telluride
Article reports an ab initio computational study of the optical dielectric properties of Silicon telluride (Si2Te3) using the GW approximation and the Bethe-Salpeter equation (BSE).
Date:
September 27, 2020
Creator:
Cui, Jingbiao; Bhattarai, Romakanta; Chen, Jiyang; Hoang, Thang B. & Shen, Xiao
System:
The UNT Digital Library
Anisotropic optical properties of single Si2Te3 nanoplates
Article reporting a combined experimental and computational study of the optical properties of individual silicon telluride (Si2Te3) nanoplates.
Date:
November 5, 2020
Creator:
Chen, Jiyang; Bhattarai, Romakanta; Cui, Jingbiao; Shen, Xiao & Hoang, Thang
System:
The UNT Digital Library
ARKENSTONE – I. A novel method for robustly capturing high specific energy outflows in cosmological simulations
Article describes how ARKENSTONE is a new model for multiphase, stellar feedback-driven galactic winds designed for inclusion in coarse resolution cosmological simulations. In this first paper of a series, the authors describe the features that allow ARKENSTONE to properly treat high specific energy wind components and demonstrate them using idealized non-cosmological simulations of a galaxy with a realistic circumgalactic medium (CGM) using the AREPO code.
Date:
October 17, 2023
Creator:
Smith, Matthew C.; Fielding, Drummond B.; Bryan, Greg L.; Kim, Chang-Goo; Ostriker, Eve C.; Somerville, Rachel S. et al.
System:
The UNT Digital Library
Automated Approach to In Vitro Image-Guided Photothermal Therapy with Top-Down and Bottom-Up-Synthesized Graphene Quantum Dots
Article discusses how, based on recent studies, graphene quantum dots (GQDs) are expected to possess advantageous photothermal properties and facilitate fluorescence image-tracking in the visible and near-infrared (NIR), while surpassing other graphene-based materials in their biocompatibility. The combination of the photothermal and imaging modalities tested in vitro makes the GQDs developed in this work prospective agents for cancer theragnostics.
Date:
February 22, 2023
Creator:
Lee, Bong; Stokes, Gretel A.; Valimukhametova, Alina; Nguyen, Steven; Gonzalez-Rodriguez, Roberto; Bhaloo, Adam et al.
System:
The UNT Digital Library
Biophotons: New Experimental Data and Analysis
Article describes how biophotons are an ultra-weak emission of photons in the visible energy range from living matter. The authors study the emission from germinating seeds using an experimental technique designed to detect light of extremely small intensity.
Date:
October 10, 2023
Creator:
Benfatto, Maurizio; Pace, Elisabetta; Davoli, Ivan; Francini, Roberto; Matteis, Fabio De; Scordo, Alessandro et al.
System:
The UNT Digital Library
A brief guide to polymer characterization: structure (IUPAC Technical Report)
Article states that to bolster the series of Brief Guides released by International Union of Pure and Applied Chemistry, the authors introduce the first Brief Guide to Polymer Characterization. This article provides a concise overview of characterization methods for teachers, students, non-specialists, and newcomers to polymer science as well as being a useful manual for researchers and technicians.
Date:
August 16, 2023
Creator:
Topham, Paul D.; Boucher, Raymond J.; Chang, Taihyun; Smrčková, Miroslava D.; Farrell, Wesley S.; He, Jiasong et al.
System:
The UNT Digital Library
Can X-Ray Observations Improve Optical-UV-based Accretion-rate Estimates for Quasars?
Article presents a study utilizing a carefully selected sample of 53 radio-quiet quasars that have Hβ and C iv λ1549 spectroscopy as well as Chandra coverage, to search for a robust accretion-rate indicator for quasars, particularly at the highest-accessible redshifts (z ∼ 6–7).
Date:
May 23, 2022
Creator:
Marlar, Andrea
System:
The UNT Digital Library
Chandra and Magellan/FIRE follow-up observations of PSO167–13: An X-ray weak QSO at z = 6.515
This article presents the results of follow-up observations of the z = 6.515 radio-quiet QSO PSO167–13, which is interacting with a close companion galaxy with the goal to confirm the existence of the X-ray source and to investigate the rest-frame UV properties of the QSO. The authors observed the PSO167–13 system with Chandra/ACIS-S (177 ks) and obtained new spectroscopic observations (7.2 h) with Magellan/FIRE.
Date:
May 27, 2021
Creator:
Vito, F.; Brandt, William Nielsen; Ricci, F.; Congui, E.; Connor, T.; Bañados, E. et al.
System:
The UNT Digital Library
Closed-form expressions for the magnetic fields of rectangular and circular finite-length solenoids and current loops
This article discusses closed-form expressions for the magnetic fields produced by rectangular- and circular-shaped finite-length solenoids and current loops. The closed-form expression for the magnetic field of a rectangular-shaped finite-length solenoid is derived using the Biot–Savart law. Closed-form expressions for the magnetic fields of solenoids and current loops can be used to avoid approximations in analytical models and may reduce computation time in computer simulations.
Date:
June 15, 2020
Creator:
Hampton, S.; Lane, R. A.; Hedlof, R. M.; Phillips, R. E. & Ordonez, Carlos A.
System:
The UNT Digital Library
Code Comparison in Galaxy-scale Simulations with Resolved Supernova Feedback: Lagrangian versus Eulerian Methods
Authors of the article present a suite of high-resolution simulations of an isolated dwarf galaxy using four different hydrodynamical codes: Gizmo, Arepo, Gadget, and Ramses. They find reasonable agreement on the time-averaged star formation rates as well as the joint density–temperature distributions between all codes.
Date:
June 16, 2023
Creator:
Hu, Chia-Yu; Smith, Matthew C.; Teyssier, Romain; Bryan, Greg L.; Verbeke, Robbert; Emerick, Andrew et al.
System:
The UNT Digital Library
Complexity synchronization: a measure of interaction between the brain, heart and lungs
Authors of the article address the measurable consequences of the network effect (NE) on time series generated by different parts of the brain, heart, and lung organ-networks (ONs), which are directly related to their inter-network and intra-network interactions. The authors assert that these same physiologic ONs have been shown to generate crucial event (CE) time series, and herein are shown ,using modified diffusion entropy analysis (MDEA) to have scaling indices with quasiperiodic changes in complexity, as measured by scaling indices, over time.
Date:
July 15, 2023
Creator:
Mahmoodi, Korosh; Kerick, Scott E.; Grigolini, Paolo; Franaszczuk, Piotr J. & West, Bruce J.
System:
The UNT Digital Library
Complexity Synchronization of Organ Networks
Article describes how the transdisciplinary nature of science as a whole became evident as the necessity for the complex nature of phenomena to explain social and life science, along with the physical sciences, blossomed into complexity theory and most recently into complexitysynchronization. The authors use the scaling of empirical datasets from the brain, cardiovascular and respiratory networks to support the hypothesis that complexity synchronization occurs between scaling indices or equivalently with the matching of the time dependencies of the networks' multifractal dimensions.
Date:
September 28, 2023
Creator:
West, Bruce J.; Grigolini, Paolo; Kerick, Scott E.; Franaszczuk, Piotr J. & Mahmoodi, Korosh
System:
The UNT Digital Library
Connecting Low- and High-redshift Weak Emission-line Quasars via Hubble Space Telescope Spectroscopy of Lyα Emission
Article presents ultraviolet spectroscopy covering the Lyα + N v complex of six candidate low-redshift (0.9 < z < 1.5) weak emission-line quasars (WLQs) based on observations with the Hubble Space Telescope.
Date:
April 14, 2022
Creator:
Paul, Jeremiah D.; Plotkin, Richard M.; Shemmer, Ohad; Anderson, Scott F.; Brandt, W. N.; Fan, Xiaohui et al.
System:
The UNT Digital Library
Cysne et al. Reply
This article is a response to a comment on the authors' original article "Disentangling Orbital and Valley Hall Effects in Bilayers of Transition Metal Dichalcogenides." The authors' response concludes that they do not believe the main points of the original Letter are affected by the Comment.
Date:
October 1, 2021
Creator:
Cysne, Tarik P.; Costa, Marcio; Canonico, Luis M.; Buongiorno Nardelli, Marco; Muniz, R. B. & Rappoport, Tatiana G.
System:
The UNT Digital Library
Deep Minima in the Triply Differential Cross Section for Ionization of Atomic Hydrogen by Electron and Positron Impact
Article investigating ionization of atomic hydrogen by electron- and positron-impact. This article belongs to the Special Issue: Interactions of Positrons with Matter and Radiation.
Date:
May 29, 2020
Creator:
DeMars, C. M.; Ward, S. J.; Colgan, J.; Amami, S. & Madison, D. H.
System:
The UNT Digital Library
Deep Minimum and a Vortex for Positronium Formation in Low-Energy Positron-Helium Collisions
This article finds a zero in the positronium formation scattering amplitude and a deep minimum in the logarithm of the corresponding differential cross section for positron–helium collisions for an energy just above the positronium formation threshold. Results show that there is a valley in the logarithm of the positronium formation differential cross section that includes the deep minimum and also a minimum in the forward direction.
Date:
August 6, 2021
Creator:
Alrowaily, Albandari W.; Quintanilla, Sandra J. & Van Reeth, Peter
System:
The UNT Digital Library
Detection of Pancreatic Cancer miRNA with Biocompatible Nitrogen-Doped Graphene Quantum Dots
Article detects the presence of a specific pancreatic cancer-derived miRNA (pre-miR-132) using the fluorescence properties of biocompatible nitrogen-doped graphene quantum dots (NGQDs) synthesized using a bottom-up approach from a single glucosamine precursor. This non-invasive approach allows cancer-specific miRNA detection to facilitate early diagnosis of various forms of cancer.
Date:
August 20, 2022
Creator:
Ajgaonkar, Ryan; Lee, Bong; Valimukhametova, Alina; Nguyen, Steven; Gonzalez-Rodriguez, Roberto; Coffer, Jeffery et al.
System:
The UNT Digital Library
Development of a Thulium Fiber Laser for an Atomic Spectroscopy Experiment
This article is a simplified analysis of a convenient thulium fiber laser source with 3 W of output power operating at a wavelength of 2059 nm with a slope efficiency of 49% with respect to input pump power and 60% with respect to absorbed pump power. The laser was applied in an atomic helium spectroscopy experiment to quench ³He (2058.63 nm) and ⁴He (2058.69 nm) meta-stable singlets (2¹S0), allowing for further investigation of the helium fine structure.
Date:
February 15, 2020
Creator:
Currey, Ronnie; Khademian, Ali & Shiner, David
System:
The UNT Digital Library
Dielectric function of six elemental metals
This article presents an accurate first-principles study of the electronic structure and absorption spectrum of six elemental metals (aluminium, gold, silver, copper, palladium, platinum) using density functional theory in an all-electron full-potential framework.
Date:
December 2020
Creator:
Pogodaeva, Maria K.; Levchenko, Sergey; Drachev, Vladimir P. & Gabitov, Ildar R.
System:
The UNT Digital Library