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Properties of Hyper-Elastic-Graded Triply Periodic Minimal Surfaces

Description: 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
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
captions transcript

[News Clip: Playground]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: September 7, 1990, 5:00 p.m.
Duration: 1 minute 34 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Tunable Plasmonic Multispectral Meta surfaces

Description: Data management plan for the grant, "Tunable Plasmonic Multispectral Meta surfaces." This project investigates the fundamental light-matter interactions and light emission tunability of 2D materials augmented by plasmonic gratings. A key application of our fundamental research is the development of the next generation of optical transistor that use photons to transmit signals containing digital information.
Date: 2023-06-01/2027-05-31
Creator: Zhang, Richard Z.
Item Type: Refine your search to only Text
Partner: UNT College of Engineering
open access

Revisiting surface core-level shifts for ionic compounds

Description: Article establishing a theoretical method which is able to relate the binding energy shifts to the electronic structure of a material. In order to establish such a methodology, the CaO(100) surface to bulk core-level binding energy shifts are studied with Hartree-Fock and density-functional theory methods using both cluster and periodic slab models.
Date: September 12, 2019
Creator: Bagus, Paul S.; Nelin, Connie J.; Zhao, Xunhua; Levchenko, Sergey V.; Davis, Earl; Weng, Xuefei et al.
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

On the Question of Ionization of Atoms and Neutralization of Ions on the Surface of a Cathode of Low Conductivity

Description: On the specificity of phenomena, occurring in the case of cathodes of low conductivity, the article considers the problem of ionization of atoms and neutralization of ions on their surfaces. At the same time the author demonstrates the peculiarities of these phenomena and their distinctness from the case of metallic surfaces.
Date: unknown
Creator: Morgulis, N, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal Conductance of Metallic Surfaces in Contact

Description: "Research in thermal contact resistance at MIT and advances made during the past year are summarized. The problem of predicting cortact resistance is examined in an analysis of a model for the contact which relates the geometry of actual surfaces in contact to the contact model, and a deformation analysis which relates the contact geometry to the load carried by the surfaces. Experimental procedures are described and are applied to two stainless steel surfaces in contact and to W and graphite s… more
Date: February 1963
Creator: Henry, John Jewett
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental Determination of Contact Conductance for Some Stainless Steel Contacts

Description: "Contact conductances for three semi-smooth and rough stainless steel contacts involving six steels are determined. The procedure and equipment used are fully described, and the results are given. Graphs display thermal conductance and conductivity versus pressure and temperature."
Date: July 1962
Creator: Adamantiades, Achilles
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some methods of surface analysis for the prediction of thermal resistance of metal contacts

Description: "Equations for the heat-transfer coefficient existing at the interface of two metals in contact are discussed. The results of applying the equations (with a graphical determination of the geometric parameters) to an iron--aluminum contact are presented. A method is given for performing the graphical analysis by means of a general purpose analog computer. Data are included that were obtained by applying this method to Blanchard ground stainless steel surfaces in contact. Statistical analysis was… more
Date: November 1, 1961
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Specific Surface and Bulk Density of U3O8 and UO2 as Factors in UF4 Production on the 250 Gram Uranium Scale

Description: Specific surface and bulk density measurements were made on samples of 22 U308 materials which had been prepared by calcination at 900°C of widely differing uranium peroxide precipitates and had been evaluated as to "reactivity" by successive treatment with hydrogen and a mixture of anhydrous hydrogen fluoride and hydrogen in a production-type batch process for the preparation of UF4. Specific surface and bulk density measurements were also made on samples of the 22 corresponding U02 intermedia… more
Date: December 1954
Creator: Bard, R. J.; Fry, O. E. & Kewish, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

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

Description: 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
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Fabrication and Testing of Biomimetic Microstructures for Walkway Tribometers

Description: The main objective of this work is to give contribution in both additive manufacturing (AM) and tribometry derived from the application and study of materials available with the use of biomimetic designs. Additional contributions are determining what effects treatments for flooring surfaces may have on the dynamic coefficient of friction and the effects of these products on common surfaces. The validity of the proposed methodology for a proof of concept was demonstrated by comparing measured dy… more
Date: December 2019
Creator: Haney, Christopher Willard
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Removal of Graphite from Aluminum Surfaces

Description: The first of two general methods are discussed based on the removal of the thin layer of aluminum to which graphite adheres. Two electro-polishing techniques, an electrolytic etch, an anodization-deanodication cycle and two chemical etches are described.
Date: June 30, 1953
Creator: Dillon, R. L. & Hodgson, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hydrodynamic Theory of the Reaction Zone in High Explosives

Description: From introduction: "The first part deals with stationary detonation waves...the second part is concerned with the structure of detonation waves of finite age...the third part deals with the steady state motion attained by a detonation wave in certain cases of two-dimensional flow."
Date: 1946
Creator: Skyrme, Tony Hilton Royle, 1922-1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electrical Resistivity of Rare-Earth Alloys

Description: From abstract: "Resistivities of solid solution alloys in the systems Gd-Lu, Tb-Lu, Gd-Er, and Y-Lu were measured from 4.2-320°K to determine the behavior of the resistivity in alloy systems with magnetic phenomena arising from localized magnetic moments. A large contribution to the residual resistivity is caused by the random distribution of these localized moments through the lattice. An analysis of the lattice resistivity of the metals shows large variations across the heavy rare-earth serie… more
Date: June 5, 1962
Creator: Smidt, F. A. & Daane, A. H. (Adrian Hill), 1919-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Redefining the Scratch Standards

Description: The following report describes scratch standards--a cosmetic standard--and studies on etched gratings that were made to replace submasters and redefine scratch standards.
Date: February 1985
Creator: Young, Matt & Johnson, Eric Gunnar, (Jr.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carcinogenic aromatic amine field monitoring and workplace decontamination

Description: Methods are described for monitoring work areas for the presence of primary amines and chemicals readily transformable to primary amines that are potentially carcinogenic. Chemical spot tests for surface monitoring are described and their capabilities and limitations are discussed for monitoring work areas, equipment, and respirators after use in hazardous environments. Methods for work area and personnel decontamination are also described. A list of cancer-suspect amines is included. (CH)
Date: January 1, 1977
Creator: Weeks, R. W., Jr.; Dean, B. J. & Yasuda, S. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Soft x-ray camera for internal shape and current density measurements on a noncircular tokamak

Description: Soft x-ray measurements of the internal plasma flux surface shaped in principle allow a determination of the plasma current density distribution, and provide a necessary monitor of the degree of internal elongation of tokamak plasmas with a noncircular cross section. A two-dimensional, tangentially viewing, soft x-ray pinhole camera has been fabricated to provide internal shape measurements on the PBX-M tokamak. It consists of a scintillator at the focal plane of a foil-filtered pinhole camera,… more
Date: May 1, 1988
Creator: Fonck, R. J.; Jaehnig, K. P.; Powell, E. T.; Reusch, M.; Roney, P. & Simon, M. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computer Simulations for the Adsorption of Polymers Onto Surfaces

Description: The objective is to develop theoretical models and computer simulations to examine the adsorption of polymers onto a variety of surfaces, and to understand how the chain architecture and conditions such as the surface or solvent affect the extent of adsorption and the morphology of the interfacial layers. Results obtained last year are summarized under the following headings: behavior of copolymers at a liquid-liquid interface, grafted homopolymer chains in a poor solvent, amphiphilic comb copo… more
Date: 1992~
Creator: Balazs, Anna C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optical measurement techniques applied to solar selective coatings

Description: Optical measurement techniques have been developed for determining the solar absorptance, ..cap alpha../sub s/, and emittance, epsilon, of solar coatings. The optical equipment includes a Beckman DK-2 Spectroreflectometer and a Gier Dunkle Solar Reflectometer (Model MS-251) for ..cap alpha../sub s/ measurements and a Gier Dunkle Infrared Reflectometer (Model DB-100) for epsilon measurements. Because all this equipment is designed to accommodate flat samples, special calibration and measurement … more
Date: August 1, 1977
Creator: Pettit, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Theory of structure and dynamics in condensed matter and applications in geophysics and solar energy. Progress report, 1 April 1975--31 March 1976

Description: The basic materials science objectives of the program have been met, and the theory built up over the past years on the properties of rocks and on the design of composite photothermal conversion surfaces has been tested. The major topics have been: (1) Theory of structural phase transitions; (2) Theory of interatomic interactions, with application to defect structures and surface complexes; and (3) Application of the theory of disordered (heterogeneous) materials to the elastic properties of ro… more
Date: March 1, 1976
Creator: Krumhansl, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

100-keV Faraday cup design: materials and structure

Description: A Faraday cup design for a 1 mA.cm/sup -2/ 100-keV, light-ion-beam measurement in background plasma is proposed. Features of this shielded, three-grid structure with deep target are described, and a mechanical draft is included. In the appendix, we reference and survey results of experiments reporting the number and energy range of secondary electrons and back-scattered ions originating on various metal surfaces bombarded with approximately 100-keV hydrogen and deuterium ions. Choice of target … more
Date: October 11, 1976
Creator: Jones, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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